EP3970843A2 - Installation et procédé de production d'une mousse minérale - Google Patents

Installation et procédé de production d'une mousse minérale Download PDF

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Publication number
EP3970843A2
EP3970843A2 EP21195007.6A EP21195007A EP3970843A2 EP 3970843 A2 EP3970843 A2 EP 3970843A2 EP 21195007 A EP21195007 A EP 21195007A EP 3970843 A2 EP3970843 A2 EP 3970843A2
Authority
EP
European Patent Office
Prior art keywords
foam
mixer
container
slurry
mixing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP21195007.6A
Other languages
German (de)
English (en)
Other versions
EP3970843A3 (fr
Inventor
Thomas Klein
Claus Rapolter
Matthias Aigner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Miralis GmbH
Original Assignee
Geolyth Mineral Technologie GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Geolyth Mineral Technologie GmbH filed Critical Geolyth Mineral Technologie GmbH
Publication of EP3970843A2 publication Critical patent/EP3970843A2/fr
Publication of EP3970843A3 publication Critical patent/EP3970843A3/fr
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/50—Producing shaped prefabricated articles from the material specially adapted for producing articles of expanded material, e.g. cellular concrete
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/10—Maintenance of mixers
    • B01F35/12—Maintenance of mixers using mechanical means
    • B01F35/123—Maintenance of mixers using mechanical means using scrapers for cleaning mixers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/235—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids for making foam
    • B01F23/2351—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids for making foam using driven stirrers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/50—Mixing liquids with solids
    • B01F23/565—Mixing liquids with solids by introducing liquids in solid material, e.g. to obtain slurries
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05—Stirrers
    • B01F27/051—Stirrers characterised by their elements, materials or mechanical properties
    • B01F27/053—Stirrers characterised by their elements, materials or mechanical properties characterised by their materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05—Stirrers
    • B01F27/051—Stirrers characterised by their elements, materials or mechanical properties
    • B01F27/054—Deformable stirrers, e.g. deformed by a centrifugal force applied during operation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05—Stirrers
    • B01F27/07—Stirrers characterised by their mounting on the shaft
    • B01F27/072—Stirrers characterised by their mounting on the shaft characterised by the disposition of the stirrers with respect to the rotating axis
    • B01F27/0721—Stirrers characterised by their mounting on the shaft characterised by the disposition of the stirrers with respect to the rotating axis parallel with respect to the rotating axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05—Stirrers
    • B01F27/07—Stirrers characterised by their mounting on the shaft
    • B01F27/072—Stirrers characterised by their mounting on the shaft characterised by the disposition of the stirrers with respect to the rotating axis
    • B01F27/0727—Stirrers characterised by their mounting on the shaft characterised by the disposition of the stirrers with respect to the rotating axis having stirring elements connected to the stirrer shaft each by two or more radial rods, e.g. the shaft being interrupted between the rods, or of crankshaft type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05—Stirrers
    • B01F27/09—Stirrers characterised by the mounting of the stirrers with respect to the receptacle
    • B01F27/091—Stirrers characterised by the mounting of the stirrers with respect to the receptacle with elements co-operating with receptacle wall or bottom, e.g. for scraping the receptacle wall
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05—Stirrers
    • B01F27/11—Stirrers characterised by the configuration of the stirrers
    • B01F27/114—Helically shaped stirrers, i.e. stirrers comprising a helically shaped band or helically shaped band sections
    • B01F27/1142—Helically shaped stirrers, i.e. stirrers comprising a helically shaped band or helically shaped band sections of the corkscrew type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05—Stirrers
    • B01F27/11—Stirrers characterised by the configuration of the stirrers
    • B01F27/13—Openwork frame or cage stirrers not provided for in other groups of this subclass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05—Stirrers
    • B01F27/11—Stirrers characterised by the configuration of the stirrers
    • B01F27/19—Stirrers with two or more mixing elements mounted in sequence on the same axis
    • B01F27/192—Stirrers with two or more mixing elements mounted in sequence on the same axis with dissimilar elements
    • B01F27/1921—Stirrers with two or more mixing elements mounted in sequence on the same axis with dissimilar elements comprising helical elements and paddles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/21—Mixers with rotary stirring devices in fixed receptacles; Kneaders characterised by their rotating shafts
    • B01F27/2123—Shafts with both stirring means and feeding or discharging means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
    • B01F27/627—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis the receptacles being tiltable, e.g. for emptying
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
    • B01F27/70—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • B01F27/90—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with paddles or arms 
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • B01F27/90—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with paddles or arms 
    • B01F27/906—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with paddles or arms  with fixed axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/80—Mixing plants; Combinations of mixers
    • B01F33/82—Combinations of dissimilar mixers
    • B01F33/821—Combinations of dissimilar mixers with consecutive receptacles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/10—Maintenance of mixers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/10—Maintenance of mixers
    • B01F35/145—Washing or cleaning mixers not provided for in other groups in this subclass; Inhibiting build-up of material on machine parts using other means
    • B01F35/1452—Washing or cleaning mixers not provided for in other groups in this subclass; Inhibiting build-up of material on machine parts using other means using fluids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/40—Mounting or supporting mixing devices or receptacles; Clamping or holding arrangements therefor
    • B01F35/41—Mounting or supporting stirrer shafts or stirrer units on receptacles
    • B01F35/412—Mounting or supporting stirrer shafts or stirrer units on receptacles by supporting both extremities of the shaft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/40—Mounting or supporting mixing devices or receptacles; Clamping or holding arrangements therefor
    • B01F35/41—Mounting or supporting stirrer shafts or stirrer units on receptacles
    • B01F35/412—Mounting or supporting stirrer shafts or stirrer units on receptacles by supporting both extremities of the shaft
    • B01F35/4122—Mounting or supporting stirrer shafts or stirrer units on receptacles by supporting both extremities of the shaft at the side walls of the receptacle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/50—Mixing receptacles
    • B01F35/511—Mixing receptacles provided with liners, e.g. wear resistant or flexible liners
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/56—General build-up of the mixers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/71—Feed mechanisms
    • B01F35/715—Feeding the components in several steps, e.g. successive steps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/71—Feed mechanisms
    • B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
    • B01F35/7176—Feed mechanisms characterised by the means for feeding the components to the mixer using pumps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/71—Feed mechanisms
    • B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
    • B01F35/71775—Feed mechanisms characterised by the means for feeding the components to the mixer using helical screws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/75—Discharge mechanisms
    • B01F35/754—Discharge mechanisms characterised by the means for discharging the components from the mixer
    • B01F35/7544—Discharge mechanisms characterised by the means for discharging the components from the mixer using pumps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
    • B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
    • B28C5/10—Mixing in containers not actuated to effect the mixing
    • B28C5/12—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers
    • B28C5/1238—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers for materials flowing continuously through the mixing device and with incorporated feeding or discharging devices
    • B28C5/1269—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers for materials flowing continuously through the mixing device and with incorporated feeding or discharging devices for making cellular concrete
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
    • B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
    • B28C5/10—Mixing in containers not actuated to effect the mixing
    • B28C5/12—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers
    • B28C5/1238—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers for materials flowing continuously through the mixing device and with incorporated feeding or discharging devices
    • B28C5/1276—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers for materials flowing continuously through the mixing device and with incorporated feeding or discharging devices with consecutive separate containers with rotating stirring and feeding or discharging means
    • B28C5/1284—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers for materials flowing continuously through the mixing device and with incorporated feeding or discharging devices with consecutive separate containers with rotating stirring and feeding or discharging means having a feeding hopper and consecutive vertical or inclined mixing container fed at its upper part
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
    • B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
    • B28C5/10—Mixing in containers not actuated to effect the mixing
    • B28C5/12—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers
    • B28C5/1238—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers for materials flowing continuously through the mixing device and with incorporated feeding or discharging devices
    • B28C5/1292—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers for materials flowing continuously through the mixing device and with incorporated feeding or discharging devices with rotating stirring and feeding or discharging means fixed on the same axis, e.g. in an inclined container fed at its lower part
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
    • B28C7/16—Discharge means, e.g. with intermediate storage of fresh concrete
    • B28C7/162—Discharge means, e.g. with intermediate storage of fresh concrete by means of conveyors, other than those comprising skips or containers, e.g. endless belts, screws, air under pressure
    • B28C7/163—Discharge means, e.g. with intermediate storage of fresh concrete by means of conveyors, other than those comprising skips or containers, e.g. endless belts, screws, air under pressure using a pump

Definitions

  • the invention relates to a continuous mixing system which is used to mix powdered and/or granular solids with a liquid to form a slurry (mushy mass) and foam this slurry to form a mineral foam and pump it to the filling location.
  • a slurry muscle mass
  • the advantages of the continuous mixing system according to the invention are particularly valuable when the foamed slurry produced therewith is a self-curing mass, in particular a rapidly curing mass, for example a mineral formulation such as foamed concrete or a foamed mineral thermal insulation material.
  • a problem when mixing powdered and/or granular solids with liquid to form a self-curing foamed slurry is that the slurry and the foam must be thoroughly mixed and transported gently to the filling point so that the foam structure is not destroyed.
  • a further problem is that after the end of the discharge from the mixer, a residue of slurry remains as an adhesion in the mixer and hardens there if the mixer is not cleaned promptly.
  • Typical continuous mixers for producing self-hardening slurry from powdered and/or granular solids and water have a conveyor device and a mixer, with the conveyor device continuously moving the solids through an opening into the chamber of the mixer, with liquid entering the chamber through at least one additional opening Chamber of the mixer is introduced, wherein the mixer mixes continuously and wherein the slurry formed continuously in the mixer flows out continuously through a further opening from the mixer.
  • a conveyor device continuously moving the solids through an opening into the chamber of the mixer, with liquid entering the chamber through at least one additional opening Chamber of the mixer is introduced, wherein the mixer mixes continuously and wherein the slurry formed continuously in the mixer flows out continuously through a further opening from the mixer.
  • DE19843777 (C1 ), EP0120812 (A2 ) and WO9615889 (A1 ) show devices for mixing a slurry.
  • CN209755551 (U ), CN203449434 (U ) and CN201249476 (Y ) describe devices for producing and pumping foamed concrete from concrete.
  • the DE 102019122041 (A1 ) describes a system for mixing a lightweight mixture of binding agent and bulk material and forcing the lightweight mixture to be conveyed using compressed air.
  • the DE 3100443 A1 shows a continuous mixer for concrete or foam concrete, in which the solids via a screw conveyor from the bottom of a hopper into the chamber of a be transported horizontally arranged mixer. Mixing water is added in the front part of the mixer and the slurry is stirred. Foam is then added in the rear section of the mixer and mixed into the slurry.
  • the DE 3629674 A1 and the WO2011044604 show similar continuous mixers, although the screw conveyor and mixer rotor do not have a common shaft and can be driven separately from one another. This allows the mixer to be emptied when only the screw conveyor and the other material feed are switched off. When cleaning the mixer, which usually takes place by spraying cleaning liquid into the mixing chamber, cleaning liquid can also get to the conveyed material located at the end area of the conveyor screw on the mixer side and form a self-hardening mass with it.
  • the WO 2011106816 A1 shows a mixing plant for the production of a mineral foam, in which a free-flowing slurry is mixed in a first mixing section and mixed with foam in a second mixing section.
  • both mixing sections are arranged horizontally and there is no eccentric screw pump.
  • the EP 1065033 A2 shows a continuous mixer in which the powdered and/or granular solids are introduced from above into a vertical mixing chamber and not, as in the aforementioned documents, from one side into a horizontally arranged mixing chamber.
  • An eccentric screw pump is connected to the lower end of the mixing chamber, which is used to transport the slurry to the place of use.
  • the risk is somewhat reduced that liquid will reach powdered and/or granular solids that are not yet in the mixing chamber and form a hardenable mass with them. Due to the design, in particular due to the vertical orientation of the material flow through the mixing chamber and the directly subsequent conveyance by the pump without an intermediate container, the amount of slurry produced can be adjusted over a wide range and the amount of slurry in the system can be reduced.
  • the DE 2437231 A1 shows a vertical mixer which has an eccentric screw pump at the lower end. Compressed air is added to the slurry in the middle of the preferably two-stage progressing cavity pump. On the outlet side, the progressing cavity pump is connected to a vortex chamber, in which a rapidly rotating tool further mixes the compressed air mixed with the slurry.
  • the disadvantage is that the stirring tool is mounted vertically in the turbulence chamber and rotates quickly, so the mixing distance in the turbulence chamber is limited to the diameter of the stirring tool and the short, vigorous mixing can have a negative effect on the structure of the air pores.
  • the DE 3807250 A1 shows a continuous mixer for mixing a slurry and a foam component.
  • the mixer is fed with slurry via the hose line of a concrete pump, with the foam also being injected into the mixer.
  • the disadvantage is that a premixed slurry is used, which is transported to and from the storage tank of a concrete pump a hose line to the mixer.
  • the device shown is therefore useful for use on a construction site where a certain distance has to be overcome between the pump and the place of use. This device is unsuitable for the production of prefabricated components such as thermal insulation panels from rapidly hardening foamed slurry.
  • the DE 4408088 A1 shows a method for the production of a porous mineral lightweight insulation board.
  • a slurry is mixed in a first mixer, which enters an intermediate container and is transported away from there with a pump via a line.
  • the line of the slurry and the line of the foam component are combined via a y-shaped branched mixing tube and homogenized by a static mixer.
  • a static mixer has no rotating parts.
  • the mixing takes place through static obstacles, which causes the components to swirl.
  • the disadvantage is that the mixing in the static mixer cannot be adapted to a variable flow rate.
  • the cleaning of the static mixer turns out to be difficult, since it is not possible to discharge material from the static mixer when the pump is at a standstill.
  • a rapidly hardening mass tends to cake on the complex-shaped obstacles in the static mixer, with areas located behind the obstacles being difficult to clean even with water that is pumped through the static mixer under pressure.
  • the EP3145687B 1 (also published as WO2015176092A2 ) of the applicant shows a continuous mixing system comprising a vertical mixer and a horizontal mixer, which continuous mixing system is designed to enable thorough mixing of the slurry and the foam and to prevent or reduce the adhesion of hardening material in the system.
  • the continuous mixing plant is a complex device, with the construction and commissioning at the place of use being associated with a corresponding amount of effort.
  • One of the objects on which the invention is based consists in facilitating the commissioning and ongoing operation of a continuous mixing plant.
  • a solution according to the invention is that the system according to the invention is designed as a so-called plug-and-play unit, which is accommodated in a container, preferably in a modified commercially available steel container, in particular in a 15-foot container.
  • the container is preferably only to be connected to a water and electricity connection at the place of use in order to be ready for use.
  • the container is in particular a transport container, which means that the system according to the invention is transported to the place of use in the container.
  • the system is also operated in the container in which it is transported and is permanently installed in it.
  • the solids in the form of a cement matrix are preferably delivered to the plant in question in big bags.
  • the solids are preferably provided (semi-)automatically with the aid of a big bag holder to the slurry mixer or the dosing device for solids.
  • Below the big bag holder there is preferably a funnel, at the lower end of which the dosing device is arranged, which feeds the slurry mixer.
  • the big bag holder, the dosing device and the two mixers are preferably attached to a common support frame which extends vertically through the entire container.
  • the support frame can preferably have feet which extend below the container floor. This can advantageously be used to level the container.
  • the container can have wheels or be placed on wheels to make it moveable.
  • the support frame preferably has upper fastening elements which extend over the container roof and on which the big bag holder can be placed.
  • the big bag holder is preferably detachably attached to the fastening elements in order to be able to be removed for transporting the container.
  • the roof of the container has an opening in which the funnel is located, at the lower end of which the dosing device is arranged.
  • a device for cutting open a big bag is preferably arranged in the hopper.
  • the big bag is preferably hung up with its upper carrying loops on a suspension that can be removed from the big bag holder.
  • the uprights of the big bag holder are mounted on steel springs, so the big bag is lowered by its own weight and lifted automatically when material is removed.
  • contactors By using contactors, contact sensors, position sensors, or position sensors on the uprights, it is possible to measure the fill level of the big bag due to the up and down movement of the big bag. As soon as the big bag is empty, it can be replaced, with the system continuing to operate with the bulk material in the hopper.
  • a rubber lip is preferably installed in the hopper, which encloses the big bag.
  • the necessary additives are preferably supplied in drums/canisters and introduced into the mixing process via suction lances/pumps.
  • Each additive is preferably introduced into the mixing process via a control valve, so that the exact amount can be set, in particular controlled or regulated.
  • the manual control preferably takes place from outside the container, preferably via an operating or control element which is present on the container but is accessible from outside the container.
  • the operating or control element can preferably be pivoted, preferably between a first position, which is in the container, and a second position, which is at least partially outside the container.
  • a control cabinet or a control system for controlling the automated components of the system can advantageously be located in the container.
  • the operating element is preferably locked in the position outside the container and can only be pivoted into the interior of the container by an authorized person, such as a service technician.
  • the operating element or the pivoting element can be provided with a lock or similar locking mechanisms.
  • One of the objects on which the invention is based is to further improve a continuous mixing plant with regard to foam quality and/or operational stability.
  • a solution according to the invention consists in the separate water treatment for the mixing water of the continuous mixer and the water of the foam cannon.
  • the water supply from a source is preferably divided into two strands for the water treatment for the mineral foam mixing plant. It is divided into a line for the mixing water of the Slurries and a line for the water for foam generation.
  • the amount of water in both strands can preferably be set independently of one another.
  • the amount of water is preferably controlled or regulated by a device or control system.
  • the temperature of the water can preferably be set independently of one another.
  • the temperature of the water is preferably controlled or regulated by a device or control system.
  • the source of water or liquid can be a pipe connection or a water reservoir of the system in question.
  • the water reservoir can be filled at regular intervals or continuously via a line connection, or it can be filled up using a tanker.
  • the water treatment system preferably includes a booster pump to guarantee constant pressure and water volume in the system.
  • the booster pump is preferably arranged after the water source and before the division into the two lines.
  • the water treatment system includes a pipe disconnector which disconnects the supply line from the machine in the event of a pressure drop.
  • the water treatment system includes a cold water filter to prevent contamination of the system with solids.
  • the water treatment system preferably comprises at least one flow heater.
  • the water treatment system can alternatively or additionally include at least one hot water tank (storage heater).
  • the water treatment system in particular the continuous-flow heater, preferably enables different water temperatures for slurry make-up water and foam water, which subsequently influences the tightening or setting behavior of the mineral foam. This makes it possible to guarantee the mineral foam has the same settling time despite temperature fluctuations in the ambient air.
  • the ambient temperature is cold, warmer water is used.
  • the ambient temperature is warmer, colder water is used.
  • the temperature of at least one strand, preferably both strands, is preferably set, controlled or regulated as a function of the ambient temperature.
  • the hot water treatment can take place after the water has been divided into the two strands, in that each (or at least one) strand has a flow heater or storage heater.
  • the hot water treatment can also take place before the water is divided into the two lines, with each (or at least one) line having a mixing faucet which has a connection for hot water and a connection for cold water.
  • the temperature and quantity of the water in the respective line can be advantageously set, controlled or regulated.
  • the water treatment system preferably also includes a hot water filter in order to prevent the system from being contaminated by limescale being detached from the instantaneous water heater or the storage heater.
  • the water treatment system preferably also comprises at least one thermostat in order to enable the water temperature to be adjusted.
  • the foam mixer preferably includes a mixing tube as shown in FIG EP3145687B1 famous.
  • the mixing tube be fitted with a second inlet for a foam cannon. This is preferably on the upper side, radially offset by approx. 90° to the first foam gun inlet, which is on the side of the mixing tube.
  • the system in question preferably has two foam guns.
  • the foam guns are preferably each connected to the mixing tube of the foam mixer.
  • the scraper tube is used to allow a transition between the mixing tube and the container for the foamed slurry, in particular in the form of a pump funnel.
  • the scraper tube preferably has an external ring gear which is driven by an electric motor.
  • the scraper tube includes--preferably on the upper side--an internal scraper element, preferably in the form of a rubber lip.
  • the plant comprises a froth destruction lance which is used to reduce the waste volume of the mineral froth.
  • This destruction of the foam pores is achieved by one or more air nozzles, which are mounted radially around a pipe section and directed towards the center of the pipe.
  • This foam destruction lance is either installed at the end of a separate hose line or it is designed as a destruction station on an additional waste container into which the filling lance is inserted.
  • the foam is destroyed by mechanical elements, preferably by rotating mechanical elements, for example by an impeller pump.
  • the system preferably includes a switching valve, in particular in the form of a 2-way valve.
  • This valve is used to make it possible, when using only one pump, to move the mineral foam through the production hose line to filling on the one hand and to convey the mineral foam through the destruction hose line on the other hand when the system is paused.
  • the valve preferably consists of two plastic plates which are connected to one another by an axle.
  • the plate on the outlet side is bolted to the container or the carrying frame and is equipped with two hose nozzles (production and destruction hose lines).
  • the input side is provided with a hose nozzle and a sprocket.
  • the toothed ring is required to enable rotation of the hose nozzle by a drive in order to connect the hose nozzle on the inlet side to either the production line or the destruction line.
  • a water jet is mounted on the upstream plastic panel and is used to flush the blowout line when not in use.
  • the production line is preferably designed as a hose line, at least in one section, and leads to a filling device.
  • the filling preferably takes place in a concrete shell for the production of thermally insulated prefabricated building elements.
  • the filling device preferably comprises a pull-off bridge.
  • the foam is smoothed and leveled directly with a squeegee, in particular a plastic broom.
  • the pull-off element is attached to a bridge via a rotatable axis and can preferably be rotated by means of a radio signal.
  • the axle is mounted on a "trolley" to service the full length of the bridge.
  • the height of the pull-off element can be adjusted and fixed in relation to the concrete shell.
  • the bridge itself preferably runs on rails on the table or, depending on requirements, can also run over a wall or ceiling system.
  • One side can be guided on rails, the second side can be designed with free-running rollers.
  • solids and the mixing liquid are preferably mixed in a first vertically arranged mixer to form a free-flowing slurry, with an eccentric screw pump being attached to the lower end of the vertical mixing chamber, which conveys the pre-mixed material from the first mixing chamber under pressure directly into the starting area of a second mixing chamber , wherein the second mixing chamber is preferably arranged at least approximately horizontally and has a rotating horizontally arranged elongate mixing tool.
  • the foam component is also conveyed under pressure into the initial area of the horizontal mixing chamber via a foam cannon, with the slurry and the foam being moved through the horizontal mixing chamber, with the mixing tool gently feeding the foam component to the slurry underscores
  • the quantity of slurry and foam is preferably selected in such a way that the transport through the horizontal mixing chamber takes place mainly through the higher volume flow of the foam.
  • the solids feed can be done by a screw conveyor which continuously conveys the solids from the bottom of a hopper to the top of the vertical mixer.
  • the mixing tool of the horizontal mixer can consist of an elongated shaft to which elastically deformable mixing elements, preferably made of high-strength steel, are attached. During operation, these mixing elements are exposed to bending forces and vibrations, which causes the flexible spring steel to change shape, which results in the loosening of caking. This is particularly advantageous if the solids do not contain any coarse-grained particles, which would otherwise help to dissolve caking.
  • the ends of the mixing elements are preferably in contact with the inner wall of the mixing chamber, so that during operation they constantly scrape off the material adhering to the inner wall.
  • the mixing elements can be designed in such a way that all surface areas of the inner wall are scraped off during one revolution of the mixing tool.
  • the mixing elements can be made from a 0.5 - 1.5 mm thick sheet of spring steel and prestressed against the inner wall of the mixing chamber.
  • One of the objects on which the invention is based is to further improve a continuous mixing plant with regard to foam quality and/or operational stability.
  • a solution according to the invention consists in the separate water treatment for the mixing water of the continuous mixer and the water of the foam cannon.
  • the water supply from a source is preferably divided into two strands for the water treatment for the mineral foam mixing plant. It is divided into a line for the mixing water for the slurry and a line for the water used to generate the foam.
  • the amount of water in both strands can preferably be set independently of one another.
  • the amount of water is preferably controlled or regulated by a device or control system, in particular electronically.
  • the temperature of the water can preferably be set independently of one another.
  • the temperature of the water is preferably controlled or regulated by a device or control system, in particular electronically.
  • Pressure control valves are preferably arranged in both lines to control the pressure under which the mixing water is introduced and to control the pressure under which the water is introduced into the foam guns.
  • the motors of the device are preferably monitored by a control unit so that it is recognized if one of the motors should fail.
  • Fig.1 can be seen from the EP3145687B1 known that the solid powdery to granular solids are conveyed with a conveyor device 3 into the vertically arranged slurry mixer 1 from a reservoir.
  • An eccentric screw pump 4 is located at the lower end of the slurry mixer 1.
  • the slurry mixer 1 has at least one water connection for introducing the mixing liquid, which can consist of water or water with various additives.
  • the water connection is located below the feed opening for the solids, which prevents the mixing water from getting on or into the conveying device 3.
  • the solids are mixed with the mixing liquid to form a free-flowing slurry, which passes directly into the eccentric screw pump 4 from the lower end of the slurry mixer 1.
  • the shaft of the vertical mixing tool has a connection to the rotor of the eccentric screw pump 4, so that the shaft and the rotor are driven by a common drive, in particular a motor.
  • the Eccentric screw pump 4 pumps the slurry directly into the horizontally arranged foam mixer 2.
  • the slurry passes from above through the slurry inlet opening in the housing of foam mixer 2 into its mixing chamber.
  • Foam is introduced into the foam mixer 2 with a foam cannon through a foam inlet opening arranged on the side of the foam mixer 2 .
  • the slurry inlet opening and the foam inlet opening are in the front area of the mixer housing.
  • the mixer housing is elongate and preferably has an annular cross section, ie it is preferably shaped as a lying hollow cylinder.
  • the housing In the rear area of the foam mixer 2, the housing has an outlet opening through which the slurry mixed with foam leaves the continuous-flow mixing plant.
  • a horizontal mixing tool In the foam mixer 2 there is a horizontal mixing tool. This consists of an elongated shaft, which is equipped with several mixing elements. The shaft can be mounted on both sides of the foam mixer 2 in its housing. The horizontal mixing tool is driven by the motor and thus rotates around its own axis.
  • the inner lateral surface of the foam mixer 2 is formed by a plastic tube.
  • the plastic tube is accommodated in a housing that is preferably divided into three parts.
  • the housing has a front section which has an opening for the slurry inlet, a bearing for the horizontal mixing tool and an opening for the foam feed.
  • the housing has a rear section which contains a bearing for the horizontal mixing tool.
  • the housing has a central section which connects the two sections, preferably detachably.
  • the section is preferably formed by a linkage, for example three rods distributed over the circumference of the plastic tube.
  • the section can preferably have a trough-shaped support for the plastic pipe in order to prevent it from sagging even slightly.
  • At the rear section closes at the EP3145687B1 a conically widening rubber connection.
  • FIG 2 Figure 3 and 4 the system according to the invention is shown, which preferably has a slurry mixer 1, a foam mixer 2, a conveyor device 3 and an eccentric screw pump 4, which as to 1 and in the EP3145687B1 can be described in detail.
  • the slurry mixer 1 is preferably arranged at least approximately vertically.
  • the foam mixer 2 is preferably arranged at least approximately horizontally.
  • the foam mixer 2 is preferably arranged at a slight incline, viewed in the transport direction of the mineral foam.
  • This from the EP3145687B1 known device elements are arranged together with other system components in a transport container 5, which is suitable for being transported by truck, train or ship.
  • the transport container 5 is preferably a standard container.
  • the length is preferably between 4 and 6 meters, the width is preferably less than 2.5 meters, and the height is less than 3 meters, in particular less than 2.5 meters.
  • a support frame 7 is arranged in the transport container 5 and extends over the entire height of the transport container 5 .
  • the support frame 7 preferably has four uprights, which are at the corners of an imaginary rectangle.
  • the uprights are connected by crossbeams in the lower area and in the upper area.
  • the feet 6 are preferably adjustable in height.
  • the feet 6 can in particular be screwed into a threaded plate.
  • further feet can be attached below the corners of the container, or the corners of the container can be supported by beams or wedges to relieve the container floor.
  • the feet 6 of the support frame 7 are on the container floor and are preferably screwed to it, the container floor being reinforced at least in the area below the feet 6 .
  • steel profiles can be welded to the container floor.
  • the container wall is preferably reinforced with vertical struts, in particular on both sides next to the operating element 17.
  • the container can be placed on rollers and moved in a known manner using a pulling tool.
  • Hollow profiles are preferably provided in the container floor, which are open on the longitudinal side of the container in order to be able to lift it with a forklift.
  • the container is preferably modified so that the distance between the hollow profiles is narrower than in a standard container.
  • the upper ends of the uprights can protrude beyond the container roof.
  • the upper ends of the uprights may be flush with or below the container roof and made accessible through openings or a large common opening in the container roof.
  • the container roof is preferably removed completely, so that heat from the interior of the container can escape better.
  • cross braces can be used to connect the side walls.
  • the opening in the roof or the open upper side of the container is preferably closed with a tarpaulin.
  • a lattice door is preferably used at least on one broad side of the container.
  • Mesh doors are preferably used on both broad sides of the container.
  • the respective lattice door preferably has a contactor or sensor.
  • the lattice doors can preferably only be opened while the system components are at a standstill.
  • the system preferably has a drive, for example in the form of a lifting cylinder, via which the slurry mixer and the foam mixer are decoupled.
  • This drive can only be actuated when the lattice door is open, in order to be able to separate the two mixers for cleaning the mixing tools.
  • the motors of the two mixers are preferably pivotably mounted, with these being decoupled from the mixing tools when they are pivoted away.
  • at least one of the motors, in particular that of the slurry mixer is pivoted with a drive, for example in the form of a lifting cylinder, this drive being operable only when the lattice door is open in order to be able to separate the motor for cleaning the mixing tools.
  • At least one of the two mixers in particular the slurry mixer, has a sensor for detecting the position of the coupling piece of the mixing tool shaft.
  • the motor of the respective mixer is preferably a servo motor.
  • the decoupled motor is preferably controlled depending on the position of the coupling piece, so that its shaft is aligned depending on the position of the coupling piece.
  • the shaft of the decoupled motor is in a known orientation and the mixing tool is aligned in accordance with this orientation before the motor is moved, in particular pivoted, in the direction of the mixer.
  • the motor can always be stopped in the same position or orientation of its shaft when it is switched off.
  • the alignment of the mixing tool (which, for example, has been removed, cleaned and reinserted) can be carried out manually before the motor is moved towards the mixing tool, in particular pivoted. This achieves an automatic coupling of the shaft of the motor with the shaft of the mixing tool.
  • a mounting device 8 is arranged at the upper end of the support frame 7 .
  • the holding device 8 can be removed, in particular to enable the container to be transported by truck, train or ship.
  • the mounting device 8 preferably comprises a frame comprising four uprights.
  • the uprights of the mounting device 8 are preferably guided in the uprights of the support frame 7 .
  • the uprights of the mounting device 8 are connected at the upper end by a horizontal frame arrangement.
  • the uprights of the mounting device 8 can also be connected at the lower end area or in the middle area via a horizontal frame.
  • 7 spring elements 9 can be arranged in the uprights of the support frame. Depending on the weight of the mounting device 8 and a bulk material container held by it, this penetrates further (heavier) or less far (easier) into the supporting frame 7 .
  • the mounting device 8 can have eyelets or hooks at the upper end, on which the flexible bulk material container is hung.
  • the holding device 8 is lowered by the weight of the filled flexible bulk container until the bulk container enters the hopper 10 .
  • a device for cutting open the bulk material container is preferably arranged in the funnel 10, in particular a knife pyramid, as in 4 is recognizable.
  • a grid can be arranged below the knife pyramid, which prevents large pieces or foreign objects from reaching the conveyor device 3, in particular a conveyor screw. Should the device be set up outdoors, an additional roof and/or housing can be arranged over and/or around the mounting device 8 .
  • rectangular hollow profiles can be arranged at the upper end of the mounting device 8 in order to be able to lift the mounting device 8 onto the supporting frame 7 using a forklift.
  • the mounting device 8 can also be lifted off the support frame 7 with a crane.
  • a big bag is preferably placed by the holding device 8 being lifted off the support frame 7 and placed over a big bag placed on the floor or a pedestal. After the big bag has been attached to the holding device 8, this is lifted onto the support frame 7 again.
  • the holding device 8 consists of two parts, with only the upper part, comprising the hollow profiles and the fastening means for the flexible bulk goods container, being lifted off.
  • the hollow profiles and the fastening means are preferably present on a common frame element.
  • the upper part or the lower part preferably has four centering cones, with the respective other element having four corresponding openings. This makes it easier to place the upper part on the lower part exactly.
  • a plastic cover or a plastic coating can advantageously also be present on the inner wall of the container 12 .
  • a plastic cover or a plastic coating can advantageously also be present on the inner wall of pipe sections of the conveying path of the mineral foam.
  • the foam mixer 2 comprises elements aligned parallel to the conveying direction, which scrape the inner wall of the foam mixer 2, and oblique elements of at least one of the designs mentioned.
  • the foam mixer 2 comprises both types of inclined elements.
  • the foam mixer 2 includes all three types of elements.
  • a scraper pipe 11 is preferably arranged at the outlet of the foam mixer 2 .
  • the mineral foam coming from the foam mixer 2 passes through the scraper pipe 11 into a container 12 which can be the pump funnel of a pump 13 .
  • a stirring element is preferably arranged in the container 12 or pump funnel, which continuously scrapes material from the container or funnel wall.
  • the pump 13 is preferably a peristaltic pump.
  • the hose pump is preferably a rotary hose pump.
  • the peristaltic pump is preferably arranged with a horizontal hose guide.
  • the pump 13 sucks in mineral foam from the container 12 and pumps it to a switching element 14, which is preferably designed as a 2-way valve.
  • a line can be connected to the filling location.
  • a line to a waste container or a foam destruction device can be connected.
  • the system according to the invention preferably includes an operating element 17 which is accessible from the outside of the transport container 5 .
  • the operating element 17 can preferably be pivoted about at least one vertical axis.
  • the operating element 17 can be attached to a swivel arm and can be swiveled out of it through an opening in the container wall. The opening can be closed for transport with the back of the operating element 17, or by an additional door or flap, or another closing element.
  • the operating element 17 preferably has a contactor or a sensor which detects the position in which the operating element 17 is located.
  • FIG. 5 and 6 a preferred embodiment of the scraper tube 11 is shown.
  • This includes a tube 18 that can be rotated about its longitudinal axis.
  • the tube 18 is preferably made of plastic.
  • a scraper arm 19 which is preferably present in the upper region of the tube 18 . This is particularly preferably offset laterally to the upper apex of the tube 18.
  • the direction of rotation of the pipe 18 is preferably opposite to the direction in which the scraper arm is arranged offset from the apex.
  • the scraper arm 19 comprises a scraper element which preferably bears against the inside of the tube 18 .
  • the tube 18 is rotated about its own axis by a drive, so that the stationary stripping element strips material from the inner wall of the tube.
  • the end of the foam mixer 2 on the outlet side preferably protrudes into the interior of the tube 18 .
  • a bearing 21 for the mixing tool of the foam mixer 2 is preferably provided inside the tube 18, which bearing is fastened to the housing of the foam mixer 2 or another non-moving part of the system.
  • the bearing may be in the form of a bearing plate. how shown, there may be a clearance between the housing of the foam mixer 2 and the top of the pipe 18 .
  • a spray device 22 which is aligned with the bearing of the mixing tool of the foam mixer 2 .
  • the scraping element runs as seen in the longitudinal direction of the scraping pipe 11 to behind the bearing 21.
  • the scraping pipe 11 preferably runs downwards from the foam mixer 2, preferably with a steeper gradient than the foam mixer 2.
  • the scraping element can be designed, for example, as a lip or broom.
  • the foam mixer 2 preferably has an inner tube (in 6 not shown), which protrudes into the housing part 20 of the foam mixer 2, which is at least partially present in the scraper tube 11.
  • the inner tube is preferably made of plastic.
  • the inner tube can protrude up to the bearing plate or the bearing 21, or preferably already end in front of it.
  • the sealing element preferably runs around the entire pipe 18, which can have an opening for the spray device 22 to pass through.
  • a preferred switching element 14 is shown. This has a connection 23 on the inlet side, to which the pump 13 is connected, preferably with a hose line.
  • the pump 13 is preferably a peristaltic pump, since this has been found to be gentle on the foam structure of the mineral foam and the squeezing of the flexible hose prevents or reduces gripping of the mineral foam.
  • connection 23 on the input side is preferably attached to a pivotable element in order to be able to be selectively connected to one of the two outputs 15 and 16 of the switching element 14 .
  • the pivoting of the input-side connection 23 is preferably carried out with a drive, for example by means of a ring gear, which is rotated by a motor.
  • the two outlets 15 and 16 could also be fastened to a pivotable or displaceable element in order to be able to be connected alternately to the connection 23 on the inlet side.
  • the input-side connector 23 can also be attached to a slidable element.
  • At one of the two outlets 15 and 16 a line to the filling point of the mineral foam is connected.
  • At the other output 15 or 16 a line is connected to a waste container.
  • At the filling location for example on a hand-held filling lance, there is preferably a switch or a button or another suitable control element, such as a lever, via which the filling can be stopped or started.
  • the control element for filling can be on a transportable device.
  • the operating element 17 can have an operating element or an operating function for starting and stopping the foam delivery at the filling location.
  • the switching element 14 is preferably actuated automatically whenever filling is stopped, so that the input 23 is connected to the output 15, 16, which leads to the waste container.
  • a foam destruction device is preferably located between the switching element 14 and the waste container, which destroys the air bubbles in the foam transported to the waste container in order to reduce the waste volume.
  • An impeller pump has proven to be suitable as a foam destruction device.
  • the foam is preferably conveyed into a container on the inlet side of the impeller pump, with a water inlet also opening into the container.
  • the water inlet is preferably aligned with the foam inlet of the container, so that the inflowing water, in particular in the form of a jet, impinges on the foam entering the container.
  • the container is preferably closed by a removable lid.
  • the switching element 14 can have a water connection to flush the line to the waste container after it has been in use.
  • the water connection can also be used to flush the production line, in particular if the filling of the mineral foam is interrupted for a longer period of time.
  • the system includes a water source 24, which can be in the form of a tank or a connection to a water supply network.
  • the system optionally includes a booster pump 25.
  • the system includes at least one device for generating hot water, for example a flow heater 26.
  • the system also includes at least two devices for setting, controlling or regulating the water temperature and quantity, for example in the form of at least two mixer taps 27, 28 , in particular in the form of thermostatic mixing fittings.
  • Each mixer tap 27, 28 has a connection for hot water from the device for hot water generation and a connection for cold water from the water source 24 or the booster pump 25.
  • the water from a first mixing faucet 27, adjusted in terms of quantity and temperature, is fed into the slurry mixer 1 as mixing water.
  • Additives can be added to the mixing water, which are introduced into the line between mixer tap 27 and slurry mixer 1, for example by a suitable device (eg suction line, pump).
  • the water can also be provided with additives in an intermediate tank and then fed into the slurry mixer 1 .
  • the water from a second mixer faucet 28 is fed to at least one device for generating foam, for example a foam cannon 29 .
  • a foam cannon 29 For example, a surfactant or protein foam is produced.
  • each foam cannon 29 can have a mixer faucet 28, so that the quantity and temperature of the water in the foam cannons 29 are also independent is mutually adjustable, controllable or adjustable.
  • the foam lines of the foam guns 29 each open into the foam mixer 2 at independent positions at the front end thereof.
  • the first foam inlet is preferably located on the side of the mixer housing in that longitudinal area in which the eccentric pump 4 is located at the upper end.
  • the second foam inlet is preferably located at the top of the mixer housing, viewed in the longitudinal direction of the mixer housing, after the longitudinal area in which the eccentric pump 4 is located.
  • At least one foam inlet is located in front of the inlet for the slurry, viewed in the transport direction of the foam mixer.
  • the foam mixer is advantageously first filled with foam and the slurry is admixed with the foam in a section located behind it. This prevents or reduces slurry, and thus hardening material, from reaching the end of the mixer housing on the motor side.
  • Both foam inlets preferably open into the interior of the foam mixer before the inlet for the slurry.
  • the switching element 14 is not present and the production line is placed in a waste container or a foam destruction device at the filling location if the filling into the components to be filled is briefly interrupted.
  • switchover element 14 provision is preferably made for this to automatically switch over from the destruction line back to the production line after a predefinable period of time (depending on the curing time), since otherwise the material in the production line would harden.
  • the switchover is preferably announced by means of an alarm.
  • the foam is preferably transported through the destruction line only during breaks, for example when changing from one element to be filled to the next. In one embodiment, the transport through the destruction line can only take place until the operator has placed the production line in a waste container or a foam destruction device.
  • the production line can be flushed after a predefinable period of time.
  • the entire system can be stopped and flushed after a predefinable period of time.
  • the operator can preferably choose between the pause mode with foam destruction and a system stop with stopping of the material supply and rinsing of the system with cleaning liquid, in particular water.
  • a preferred filling station 30 is shown which is suitable for use with the mineral foam system according to the invention.
  • the filling station 30 described is advantageous for large components to be filled, such as parts of prefabricated houses.
  • the filling station 30 includes a filling element 31, for example in the form of a filling lance, which is connected to a hose line the outputs 16, 15 of the switching element 14 is connected.
  • the filling station 30 comprises a peel-off bridge comprising a receiving element 32 to which a peel-off element (not shown) is attached.
  • the receiving element 32 preferably has a vertical axis 37 about which the pull-off element can be rotated or pivoted.
  • the rotating or pivoting movement is preferably driven by a motor.
  • the turning or swiveling movement can be carried out by programming via a control system, or by means of a remote control by a user.
  • the receiving element 32 is attached to a traverse 33 by means of a trolley, the trolley being movable along the traverse 33 .
  • the traverse 33 is present on at least two supports 34, 35, which can be moved transversely to the running direction of the trolley. Both supports 34, 35 preferably have rollers. At least one of the supports 35 is guided on a rail, so that a fixed alignment of the pull-off bridge is maintained.
  • the second support 34 can be guided freely on the hall floor 36 .
  • the distance between the supports 34, 35 is preferably adjustable. This is preferably done by lifting the freely guided support 34 and moving it along the traverse 33 .
  • the filling element 31 When filling, the filling element 31 is guided over a component shown in dashed lines in order to fill it with the mineral foam.
  • the height of the squeegee relative to the floor or the traverse 33 can be adjusted in order to be able to adapt it to the required filling height of the component.
  • the component is filled with mineral foam and the mineral foam is spread and smoothed with the squeegee at the same time, in that the filling element 31 is guided along a manually selectable or programmed path over the surface or opening of the component to be filled and the squeegee follows the path of the filling element 31 is tracked.
  • a stirring element is preferably arranged in the container 12 or pump funnel, which continuously scrapes material from the container or funnel wall.
  • the stirring element is driven by a motor.
  • the motor also drives a helical element, in particular a helical spring 38 .
  • the spring 38 can be attached to the stirring element.
  • the spring 38 extends into that pipe section which extends between the container 12 or pump funnel and the hose of the hose pump. In this rigid pipe section of the system, the mineral foam tends to stick. The spring rests against the inner surface of the pipe section over its entire circumference.
  • the inner wall of the pipe section is continuously swept over by the rotating spring 38 and material is thus prevented from adhering and hardening.
  • the spring 38 or the helical element has no core.
  • the spring 38 is preferably arranged on the suction side or on the outlet side of the pump 13 and is therefore not used to transport the mineral foam.
  • FIG. 12 and 13 1 shows another embodiment variant of a device for preventing the adhesion of mineral foam in a pipe section of a conveying line.
  • the pipe section has an internal elastic hose 39 , a pressurized medium (compressed air or liquid) being introduced between the hose 39 and the pipe via a connection 40 can be, so that the hose 39 stands out inwardly from the inner wall of the pipe section.
  • the space between the inner wall of the pipe section and the hose 39 is tightly closed towards the inside of the pipe.
  • the hose 39 can be slipped around the casing of the pipe section at at least one end or both ends of the pipe section in order to achieve a tight fit.
  • the outer section of the hose 39 can be fixed to the pipe with a pipe clamp, a cable tie or a comparable element, for example.
  • the port 40 is preferably on the outside of the tube.
  • the pipe section present on the inlet side of the pump 13 can be designed with an inner hose 39 .
  • the funnel-side end of the hose 39 can be fastened to the inside of the funnel or container 12 .
  • the pipe section present on the outlet side of the pump 13 can be designed with an inner hose 39 .
  • FIG. 14 shows an alternative arrangement of a mounting device 8, which can be set up next to the transport container 5.
  • a further funnel 41 is arranged below the bulk material container held by the holding device 8 , from which material is conveyed with a further conveying device 42 into the funnel 10 of the transport container 5 .
  • the holding device 8 With this transport container 5, it is preferably also possible to place the holding device 8 on the transport container 5, namely in the uprights of the support frame 7, which is present in the transport container 5.
  • the bulk material can also be provided in other ways, for example by means of a conveying device which conveys material from a container, silo or storage facility into the hopper 10 .

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Ceramic Engineering (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
  • Fertilizers (AREA)
EP21195007.6A 2020-09-08 2021-09-06 Installation et procédé de production d'une mousse minérale Pending EP3970843A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA50760/2020A AT523413B1 (de) 2020-09-08 2020-09-08 Anlage zur Erzeugung eines Mineralschaumes
DE202021104334.2U DE202021104334U1 (de) 2020-09-08 2021-08-13 Anlage zur Erzeugung eines Mineralschaumes

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EP3970843A2 true EP3970843A2 (fr) 2022-03-23
EP3970843A3 EP3970843A3 (fr) 2022-06-29

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AT (1) AT523413B1 (fr)
DE (1) DE202021104334U1 (fr)

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CN114559550A (zh) * 2022-02-08 2022-05-31 陈玲 一种新型水泥稳定碎石设备
CN114588815A (zh) * 2022-05-05 2022-06-07 广饶六合化工有限公司 一种交联剂生产自动加药装置
CN115318185A (zh) * 2022-08-16 2022-11-11 哈尔滨工业大学（深圳） 一种轴定位翻滚机构
CN117298910A (zh) * 2023-11-07 2023-12-29 湖南德景源科技有限公司 一种具有导料槽的锂电材料混合设备
CN118718966A (zh) * 2024-09-04 2024-10-01 天津泰士康医疗科技有限公司 一种次氯酸钠生产用反应釜及其使用方法
DE102024121720A1 (de) * 2024-07-30 2026-02-05 CCM-Concepts GmbH Vorrichtung zur Herstellung von porösen mineralischen Baustoffen

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CN115430175B (zh) * 2022-09-20 2023-06-23 潍坊奥奇生物科技有限公司 一种植物源杀菌剂生产制备混合提取装置
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CN119159681B (zh) * 2024-11-05 2025-11-25 安徽建工公路桥梁建设集团有限公司 一种高性能泡沫轻质土的施工装备及使用方法

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DE2437231A1 (de) 1974-08-02 1976-02-12 Pft Putz & Foerdertech Vorrichtung zum erzeugen eines luftproenhaltigen moertels
DE3100443A1 (de) 1981-01-09 1982-08-12 Dietrich Dipl.-Ing. 6240 Königstein Maurer Verfahren und vorrichtung zur herstellung und gegebenenfalls foerderung von aufgeschaeumten gemischen aus bindemitteln oder bindemitteln mit zuschlagstoffen
EP0120812A2 (fr) 1983-03-26 1984-10-03 Horst Dr. Schönhausen Procédé et dispositif pour la fabrication et l'utilisation directe de préparations de matériaux de constructin prêts à l'emploi
DE3629674A1 (de) 1986-09-01 1988-03-10 Maurer Gmbh Uelzener Maschf Vorrichtung zur herstellung von endlagerfaehigen aushaertenden massen aus kontaminierten, insbesondere radioaktiven festen und / oder fluessigen abfallstoffen
DE3807250A1 (de) 1987-03-06 1988-09-15 Anthes Inc Verfahren und vorrichtung zur herstellung von zellen- oder porenbeton sowie eines schaumkonzentrats oder schaeumungsmittels hierfuer
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EP1065033A2 (fr) 1999-07-02 2001-01-03 m-tec mathis technik gmbh Procédé et dispositif pour la préparation de matériaux liants , en particulier d'un mélange pour matériau de construction sec ou pulvérulent
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EP3145687B1 (fr) 2014-05-20 2018-07-04 Geolyth Mineral Technologie GmbH Installation de mélange continue pour la preparation d'une composition de coulis alvéolaire et procédé d'opération de ladite installation de mélange continue
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114559550A (zh) * 2022-02-08 2022-05-31 陈玲 一种新型水泥稳定碎石设备
CN114559550B (zh) * 2022-02-08 2023-07-28 陈玲 一种新型水泥稳定碎石设备
CN114588815A (zh) * 2022-05-05 2022-06-07 广饶六合化工有限公司 一种交联剂生产自动加药装置
CN114588815B (zh) * 2022-05-05 2022-12-23 广饶六合化工有限公司 一种交联剂生产自动加药装置
CN115318185A (zh) * 2022-08-16 2022-11-11 哈尔滨工业大学（深圳） 一种轴定位翻滚机构
CN117298910A (zh) * 2023-11-07 2023-12-29 湖南德景源科技有限公司 一种具有导料槽的锂电材料混合设备
DE102024121720A1 (de) * 2024-07-30 2026-02-05 CCM-Concepts GmbH Vorrichtung zur Herstellung von porösen mineralischen Baustoffen
CN118718966A (zh) * 2024-09-04 2024-10-01 天津泰士康医疗科技有限公司 一种次氯酸钠生产用反应釜及其使用方法

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Publication number Publication date
EP3970843A3 (fr) 2022-06-29
AT523413B1 (de) 2021-08-15
DE202021104334U1 (de) 2021-09-09
AT523413A4 (de) 2021-08-15

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