EP3840923B1 - Dispositif de production de matériaux de construction expansés - Google Patents

Dispositif de production de matériaux de construction expansés Download PDF

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Publication number
EP3840923B1
EP3840923B1 EP19758705.8A EP19758705A EP3840923B1 EP 3840923 B1 EP3840923 B1 EP 3840923B1 EP 19758705 A EP19758705 A EP 19758705A EP 3840923 B1 EP3840923 B1 EP 3840923B1
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EP
European Patent Office
Prior art keywords
gas
suspension
dispersion
temperature
volume flow
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Application number
EP19758705.8A
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German (de)
English (en)
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EP3840923C0 (fr
EP3840923A1 (fr
Inventor
Holger Gawryck
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Individual
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Classifications

    • 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
    • B28C5/38—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions wherein the mixing is effected both by the action of a fluid and by directly-acting driven mechanical means, e.g. stirring means ; Producing cellular concrete
    • B28C5/381—Producing cellular concrete
    • B28C5/386—Plants; Systems; Methods
    • B28C5/388—Methods
    • 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
    • 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
    • B01F23/29—Mixing systems, i.e. flow charts or diagrams
    • B01F23/291—Mixing systems, i.e. flow charts or diagrams for obtaining foams or aerosols
    • 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
    • B01F35/20—Measuring; Control or regulation
    • B01F35/21—Measuring
    • B01F35/211—Measuring of the operational parameters
    • B01F35/2113—Pressure
    • 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
    • B01F35/20—Measuring; Control or regulation
    • B01F35/21—Measuring
    • B01F35/211—Measuring of the operational parameters
    • B01F35/2115—Temperature
    • 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
    • B01F35/20—Measuring; Control or regulation
    • B01F35/22—Control or regulation
    • B01F35/2201—Control or regulation characterised by the type of control technique used
    • B01F35/2202—Controlling the mixing process by feed-back, i.e. a measured parameter of the mixture is measured, compared with the set-value and the feed values are corrected
    • 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
    • B01F35/80—Forming a predetermined ratio of the substances to be mixed
    • B01F35/82—Forming a predetermined ratio of the substances to be mixed by adding a material to be mixed to a mixture in response to a detected feature, e.g. density, radioactivity, consumed power or colour
    • 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
    • B01F35/80—Forming a predetermined ratio of the substances to be mixed
    • B01F35/83—Forming a predetermined ratio of the substances to be mixed by controlling the ratio of two or more flows, e.g. using flow sensing or flow controlling devices
    • 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
    • B28C5/38—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions wherein the mixing is effected both by the action of a fluid and by directly-acting driven mechanical means, e.g. stirring means ; Producing cellular concrete
    • B28C5/381—Producing 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
    • 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
    • B28C7/02—Controlling the operation of the mixing
    • B28C7/022—Controlling the operation of the mixing by measuring the consistency or composition of the mixture, e.g. with supply of a missing component
    • B28C7/024—Controlling the operation of the mixing by measuring the consistency or composition of the mixture, e.g. with supply of a missing component by measuring properties of the mixture, e.g. moisture, electrical resistivity, density
    • 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
    • B28C7/04—Supplying or proportioning the ingredients
    • B28C7/0404—Proportioning
    • B28C7/0418—Proportioning control systems therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C9/00—General arrangement or layout of plant
    • B28C9/002—Mixing systems, i.e. flow charts or diagrams; Making slurries; Involving methodical aspects; Involving pretreatment of ingredients; Involving packaging
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
    • B01F2101/28—Mixing cement, mortar, clay, plaster or concrete ingredients

Definitions

  • the present invention relates to a device for producing foamed building materials according to the preamble of claim 1.
  • the inventor of the present invention has been developing and marketing devices for producing foamed building materials for many years. It has been shown that a system that is set to customer-specific default values on the inventor's premises, for example, delivers the desired result there, but can deliver a different result for a remote customer without the value entries having been changed.
  • a similar problem can occur at one and the same installation site of the device, for example if the ambient conditions in a production hall and/or the storage conditions of the components to be mixed change.
  • a device for producing foamed building materials which comprises a gas supply unit, a suspension supply unit and a mixing chamber. Using this device, the volume of the air inclusions and the pore size in the foamed building materials can be controlled in particular. Furthermore, the DE 10 2013 217149 A1 , the EP 3 076 839 B1 as well as the EP 1 669 183 A2 Methods and devices for producing and/or providing foams or foamed building materials.
  • the inventor of the present invention recognized on the one hand that the result of the device for producing foamed building materials depends to a large extent on the volume flows and to a lesser extent on the mass flows. In order to be able to ensure a uniform volume flow of each component with changing ambient conditions or input conditions of the components to be mixed, the respective effects of a change in ambient conditions or input conditions for the operation of the device for producing foamed building materials must be recorded and compensated.
  • the supplied masses and/or densities of gas and suspension can also be set, for example using determined target volumes, which are converted into target values for a mass flow to be set or target values for the density lead to the desired effect.
  • the inventor of the present invention has recognized that a measurement of, for example, the temperature and air pressure of the components to be mixed alone does not lead to maintaining the production result with changing environmental conditions or input conditions.
  • the inventor has recognized that during the mixing of the components in the mixing chamber, input energy can be introduced into the component mixture (also called "dispersion"), which also depends on the ambient conditions or the
  • Input conditions can be dependent and which was not considered in devices known from the prior art.
  • This invention is of course applicable to both continuous and discontinuous, for example clocked, devices.
  • gas metering can be continuous or discontinuous.
  • Mating in the mixing chamber can be carried out, for example, by blowing in, stirring, shaking, pouring, folding in and/or dissolving gas.
  • the means can be set up to detect a temperature of the dispersion in a region in which the dispersion leaves the mixing chamber and/or in which the dispersion leaves a conveying unit connected to the mixing chamber.
  • the expression "in one area” is intended to mean that the temperature of the dispersion can be recorded directly after mixing the components to be mixed, i.e. still in the mixing chamber, up to an outlet of the mixing chamber , where both a detection still inside the mixing chamber as well as outside of the mixing chamber is conceivable.
  • a delivery unit such as a pipe or hose
  • detection can also only be carried out at one end of this delivery unit, with both detection here again still conceivable within the conveyor unit and also outside the conveyor unit.
  • the device can also include a foam generation unit, which is located upstream of the mixing chamber and which is set up to mix the gas supplied by the gas supply unit with a liquid, resulting in the formation of a foam.
  • the foam can then be mixed with the suspension to be mixed in the mixing chamber, resulting in a foamed dispersion.
  • the foam can be based on at least one of enzymes, surfactants or proteins. The use of a foam generation unit can ensure that the gas and suspension are mixed evenly and with a predefined size of the gas inclusions in the dispersion.
  • the mixing chamber can be sealed from an external environment of the mixing chamber.
  • a “seal” in this sense means that only the components to be mixed, for example, as mentioned above, suspension and gas or foam, enter the mixing chamber. In this way, ambient air can be prevented from flowing into the mixing chamber, as is the case with open chambers. This can ensure that processes taking place in the mixing chamber can run unaffected by the surroundings of the mixing chamber.
  • the mixing chamber can be formed at a point at which the pipeline elements that convey the suspension or the gas/foam are brought together.
  • a stirring element which is arranged in the mixing chamber and is set up to mix the components to be mixed, can be set in such a way that it improves the material flow of the two components and/or the dispersion remains unchanged, i.e. has no effect on the volume flow.
  • the means for supplying values for a plurality of parameters can advantageously include at least one temperature sensor and/or one air pressure sensor.
  • the provision of sensors can automate the detection of a temperature and/or an air pressure.
  • a user of the device for producing foamed building materials had to send values, on the basis of which at least one temperature of the dispersion and/or an air pressure in the area surrounding the device could be determined, manually, for example using a keyboard, to the control and /or forward the control unit, the control and/or control unit can now receive these values directly from the sensors.
  • the provision of a temperature sensor and/or an air pressure sensor can enable a direct detection of a temperature and/or an air pressure instead of using values on the basis of which a temperature and/or an air pressure can be inferred.
  • the device can also comprise at least one further temperature sensor which is set up to measure a temperature of the suspension supplied by the suspension supply unit and/or of the gas supplied by the gas supply unit and/or of the foam introduced into the mixing chamber by the foam generation unit capture.
  • a temperature of the respective basic media which are to be mixed in the mixing chamber, i.e. the suspension and the gas or the foam
  • the device can also comprise a memory unit which is operatively coupled to the control and/or regulation unit and which is set up to store at least one value from a predetermined dispersion temperature and/or a predetermined gas temperature and/or a output a predetermined suspension temperature and/or a predetermined air pressure to the open-loop and/or closed-loop control unit.
  • the control and/or regulation unit can thus be provided with reference values, on the basis of which the control and/or regulation unit can automatically regulate the device, for example the volume flow of one of the components to be mixed.
  • the device can comprise at least one further pressure sensor which is set up to detect a system pressure during the introduction of gas and/or a pressure in a discharge space of the foamed dispersion.
  • system pressure during the introduction of gas is to be understood as meaning the pressure that prevails in the mixing chamber when the suspension is mixed with the gas or the foam.
  • pressure in a discharge space for the foamed dispersion is to be understood as meaning a space into which the foamed dispersion leaves the device for producing foamed building materials, for example in order to cure there.
  • the discharge space can be closed off or sealable from an environment surrounding the discharge space, or it can be in fluid communication with the environment.
  • the device can also include at least one mass flow sensor, in particular a calorimetric flow measuring device, which is set up to measure a mass flow of the supplied gas and/or a mass flow of the dispersion and/or a mass flow of the suspension and/or a mass flow of the supplied liquid and/or to detect a mass flow of the supplied foam.
  • a volume flow of a corresponding medium can also be determined on the basis of a detected mass flow, for example in combination with a detected temperature and/or a known gas constant, so that a direct detection of a volume flow is not required.
  • the detection of a mass flow and the use of elements suitable for this can have advantages with regard to an arrangement or installation space of these elements in the device for producing foamed building materials or with regard to costs.
  • the device can also comprise at least one volume flow sensor, which is set up to measure a volume flow of the supplied gas and/or a volume flow of the dispersion and/or a volume flow of the suspension and/or a volume flow of the supplied liquid and/or a volume flow of the to detect supplied foam.
  • at least one volume flow sensor which is set up to measure a volume flow of the supplied gas and/or a volume flow of the dispersion and/or a volume flow of the suspension and/or a volume flow of the supplied liquid and/or a volume flow of the to detect supplied foam.
  • the volume flow sensor can comprise one of an impeller sensor, a vortex flow measuring device, a variable area flow measuring device and a calorimetric flow measuring device.
  • the present invention relates to a method for producing foamed building materials, comprising the steps: providing a suspension using a suspension supply unit,
  • a respective reference value can make it possible to regulate the production process automatically using predefined parameters that are defined by the respective reference value.
  • Parameters can also be stored automatically as such a reference value or a plurality of such reference values, for example, by operating a method or a device for producing foamed building materials over a predefined period of time without corresponding input values being adjusted.
  • the last set input parameters that were set before the device was switched off can be stored as respective reference values.
  • a respective reference value and/or a respective instantaneous value can be normalized to predefined standard conditions before the step of comparing.
  • predefined standard conditions in order to be able to compare a value that has been specified for first environmental conditions or input conditions with a value that has been specified for second environmental conditions or input conditions that are different from the first, it may be necessary to compare the first value and/or or to normalize the second value to predefined standard conditions. It is conceivable that either conditions defining the first value or conditions defining the second value or conditions different from the conditions defining the first or the second value are used as a reference for these standard conditions.
  • the standard conditions include a predefined temperature and a predefined absolute air pressure to which the respective values are to be normalized.
  • FIG. 1 Schematically illustrated device for producing foamed building materials is generally designated by the reference numeral 10.
  • a gas such as compressed air
  • the gas inlet 12 is followed by a metering device 14, for example a valve, via which the amount of gas supplied can be regulated.
  • the gas then flows through a measuring device 16, which is set up here to record a volume flow Q of the gas. Of course, the measuring device 16 and then flow through the dosing device 14 .
  • the gas then enters a mixing chamber 18.
  • a suspension is fed into the device 10 at a suspension inlet 20 of the device 10 .
  • the suspension is in the in figure 1 illustrated embodiment conveyed using a metering pump 22 in the device 10. Downstream of the dosing pump 22, the suspension is conveyed into the mixing chamber 18 via a measuring device 24, which is set up to record a volume flow Q of the suspension and optionally a density p of the suspension.
  • the measuring device 24 could also be arranged in front of the dosing pump 22 here.
  • the device 10 also includes a foaming agent inlet 26 at which a foaming agent is fed into the device 10 .
  • the foaming agent also first passes through a metering device 28, such as a control valve, and then a measuring device 30, which is set up to record a volume flow Q of the foaming agent.
  • the foaming agent is then also introduced into the mixing chamber 18 .
  • a mixing element (not shown) is arranged in the mixing chamber 18 and can be set up both to generate a foam from the foaming agent and the gas and to generate a dispersion from the foaming agent/gas or foam and suspension.
  • the dispersion leaves the mixing chamber 18 at an outlet 32 of the mixing chamber 18, with a temperature measuring device 34 being set up to record a temperature T of the dispersion leaving the mixing chamber 18. Downstream of the temperature measuring device 34, the dispersion, which is in the form of a mineral foam, for example, is conveyed further depending on the customer-specific arrangement of the device 10, the dispersion naturally also having a density p and a volume flow Q having.
  • the measured values recorded by the measuring devices 16 , 24 , 30 , 34 are output to a control and/or regulation unit 36 .
  • an air pressure measuring device 38 detects an air pressure P present in the surroundings of the device 10 and outputs it to the open-loop and/or closed-loop control unit 36 .
  • the control and/or regulation unit 36 can then, for example on the basis of reference values, i.e.
  • the reference values can be stored in a storage unit 40 which is operationally connected to the control and/or regulation unit 36 .
  • FIG. 2 1 a second embodiment of an apparatus according to the invention, generally designated by the reference numeral 110.
  • FIG. The device 110 is essentially based on the device 10 according to FIG figure 1 . For this reason, components of the device 110 that are similar to the device 10 are provided with the same reference numbers, but increased by 100. At this point it should be explicitly mentioned that all the features and advantages of the device 10 can also be applied to the device 110 and vice versa. Accordingly, in the following only the differences between the device 110 and the device 10 are described.
  • the device 110 also includes a water inlet 142, via which water is fed into the device 110.
  • the water fed into the device 110 runs through a corresponding dosing device 144 and a measuring device 146, which is set up to record a volume flow Q of the water.
  • the water along with the foaming agent and gas enter a foam generator 148 where the water, foaming agent and gas are mixed to form a foam.
  • the foam generated in the foam generator 148 is then fed into a mixing chamber 118 .
  • the device 110 has a mixed water inlet 150, a binder inlet 152, an aggregate inlet 154 and an additive inlet 156 separately from one another.
  • the mixed water fed into device 110 via mixed water inlet 150 then runs through a metering device for mixed water 158, the binding agent fed into device 110 via binding agent inlet 152 passes through a metering device for binding agent 160, and the aggregates fed into device 110 via aggregate inlet 154 pass through a Metering device for additives 162 and the additives fed into the device 110 via the additive inlet 156 pass through a metering device for additives 164.
  • the mix water, binder, aggregate and additives then enter a slurry mixer 166 which is adapted to mix the mix water, binder, aggregate and additives Additives to produce a suspension.
  • the device or suspension mixer 166 can include at least one weighing device 168, which is set up to add a mass m of the mixed water and/or a mass m of the binder and/or a mass m of the aggregates and/or a mass m of the additives capture.
  • Weighing device 168 can forward the recorded values to a control and/or regulation unit 170 of suspension mixer 166, which, for example, calculates target values for the mass m of the mixed water and/or the mass m of the binder and/or the mass m of the aggregates and/or the Mass m of the additives are present, on the basis of which the metering devices 158, 160, 162, 164 can be controlled in order to adjust the recorded actual values to the stored target values.
  • the suspension produced in the suspension mixer 166 enters a buffer container 172 in which the suspension produced can be temporarily stored.
  • the suspension is then conveyed into the mixing chamber 118 via a metering pump 122 known from the device 10 via a measuring device 124 also known from the device 10 .
  • the foam is mixed with the suspension analogously to the description with reference to FIG figure 1 mixed to form a dispersion, the temperature T of which is recorded in a temperature measuring device 134 .
  • a control and/or regulation unit 136 of the device 110 also has a volume flow Q of the water fed into the device 110 via the water inlet 142 as an input variable. Accordingly, the control and/or regulation unit 136 is also set up to regulate the dosing device 144 for the water to be fed into the device 110 and thus the quantity of water fed into the device 110 .

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Accessories For Mixers (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)

Claims (15)

  1. Dispositif (10, 110) pour la production de matériaux de construction expansés, comprenant
    • une unité d'alimentation en gaz (12, 112), qui est adapté pour alimenter le dispositif (10, 110) en gaz,
    • une unité d'alimentation en suspension (20, 150 - 156), qui est adaptée pour alimenter le dispositif (10, 110) en suspension, et
    • une chambre de mélange (18, 118) qui est adaptée pour mélanger le gaz fourni par l'unité d'alimentation en gaz (12, 112) et la suspension fournie par l'unité d'alimentation en suspension (20, 150 - 156) en une dispersion,
    caractérisé en ce que le dispositif (10, 110) comprend en outre une unité de commande et/ou de régulation (36, 136) qui comporte des moyens (16, 24, 30, 34, 116, 124, 130, 134, 146) pour fournir des valeurs d'une pluralité de paramètres d'entrée sur la base desquels on peut déduire au moins une température (T) de la dispersion et une pression d'air (P) dans un environnement du dispositif (10, 110), 110), l'unité de commande et/ou de régulation (36, 136) étant en outre adaptée pour influencer, sur la base des valeurs des paramètres d'entrée qui lui sont fournies, au moins un paramètre de sortie (Q, m) au moyen duquel le rapport des volumes et/ou des masses et/ou des densités de gaz et de suspension fournis par unité de temps peut être réglé.
  2. Dispositif (10, 110) selon la revendication 1,
    caractérisé en ce que les moyens (16, 24, 30, 34, 116, 124, 130, 134, 146) sont adaptés pour détecter une température (T) de la dispersion dans une zone (32) dans laquelle la dispersion quitte la chambre de mélange (18, 118) ou/et dans laquelle la dispersion quitte une unité de transport reliée à la chambre de mélange (18, 118).
  3. Dispositif (110) selon la revendication 1 ou 2,
    caractérisé en ce que le dispositif (110) comprend en outre une unité de production de mousse (148) qui est placée en amont de la chambre de mélange (118) et qui est adaptée pour mélanger le gaz fourni par l'unité d'alimentation en gaz (112) avec un liquide, ce qui produit une mousse.
  4. Dispositif (10, 110) selon l'une des revendications 1 à 3,
    caractérisé en ce que la chambre de mélange (18, 118) est étanche par rapport à un environnement extérieur de la chambre de mélange (18, 118).
  5. Dispositif (10, 110) selon l'une des revendications 1 à 4,
    caractérisé en ce que les moyens (16, 24, 30, 34, 116, 124, 130, 134, 146) pour fournir des valeurs d'une pluralité de paramètres comprennent au moins un capteur de température (34, 134) et/ou un capteur de pression atmosphérique (38, 138).
  6. Dispositif (10, 110) selon l'une des revendications 1 à 5,
    éventuellement selon la revendication 3,
    caractérisé en ce que le dispositif (10, 110) comprend en outre au moins un autre capteur de température adapté pour détecter une température (T) de la suspension fournie par l'unité d'alimentation en suspension (20, 150-156) et/ou du gaz fourni par l'unité d'alimentation en gaz (12, 112) et/ou de la mousse introduite dans la chambre de mélange (18, 118) par l'unité de production de mousse (148).
  7. Dispositif (10, 110) selon l'une des revendications 1 à 6,
    caractérisé en ce que le dispositif (10, 110) comprend en outre une unité de stockage (40, 140) qui est couplée fonctionnellement à l'unité de commande et/ou de régulation (36, 136) et qui est adaptée pour fournir à l'unité de commande et/ou de régulation (36, 136) au moins une valeur parmi une température de dispersion prédéterminée (T) et/ou une température de gaz prédéterminée et/ou une température de suspension prédéterminée et/ou une pression d'air prédéterminée (P).
  8. Dispositif (10, 110) selon l'une des revendications 1 à 7,
    caractérisé en ce que le dispositif (10, 110) comprend en outre au moins un autre capteur de pression qui est adapté pour détecter une pression du système pendant une introduction de gaz et/ou une pression dans un espace de décharge de la dispersion expansée.
  9. Dispositif (10, 110) selon l'une des revendications 1 à 8,
    caractérisé en ce que le dispositif (10, 110) comprend en outre au moins un capteur de débit massique, notamment un dispositif de mesure de débit calorimétrique, qui est adapté pour détecter un débit massique du gaz amené et/ou un débit massique de la dispersion et/ou un débit massique de la suspension et/ou un débit massique du liquide amené et/ou un débit massique de la mousse amenée.
  10. Dispositif (10, 110) selon l'une des revendications 1 à 9,
    caractérisé en ce que le dispositif (10, 110) comprend en outre au moins un capteur de débit volumique (16, 24, 30, 116, 124, 130, 146) adapté pour détecter un débit volumique (Q) du gaz alimenté et/ou un débit volumique (Q) de la dispersion et/ou un débit volumique (Q) de la suspension et/ou un débit volumique (Q) du liquide alimenté et/ou un débit volumique (Q) de la mousse alimentée.
  11. Dispositif (10, 110) selon la revendication 10,
    caractérisé en ce que le capteur de débit volumique (16, 24, 30, 116, 124, 130, 146) comprend l'un parmi un capteur à hélice, un dispositif de mesure de débit à vortex, un dispositif de mesure de débit à flotteur et un dispositif de mesure de débit calorimétrique.
  12. Procédé de production de matériaux de construction expansés, comprenant les étapes suivantes :
    • préparer une suspension en utilisant une unité d'alimentation en suspension (20, 150 - 156),
    • fournir un gaz en utilisant une unité d'alimentation en gaz (12, 112), et
    • mélanger la suspension et le gaz en une dispersion dans une chambre de mélange (18, 118),
    caractérisé en ce que le procédé comprend en outre les étapes suivantes :
    • détecter une température (T) de la dispersion,
    • détecter une pression d'air ambiant (P),
    • transmettre la température détectée (T) de la dispersion et de la pression d'air ambiant détectée (P) à une unité de commande et/ou de régulation (36, 136),
    • régler au moins l'un d'un débit volumique (Q) du gaz, d'une masse (m) du gaz, d'une température (T) du gaz, d'une pression (p) du gaz, d'un débit volumique (Q) de la suspension, d'une masse (m) de la suspension et d'une densité de la suspension par l'unité de commande et/ou de régulation (36, 136) sur la base de la température détectée (T) de la dispersion et de la pression d'air ambiante détectée (P).
  13. Procédé selon la revendication 12,
    caractérisé en ce que le procédé comprend en outre les étapes suivantes :
    • fournir au moins une valeur de référence à partir d'une unité de stockage (40, 140) à l'unité de commande et/ou de régulation (36, 136),
    la valeur de référence indiquant au moins un élément parmi une température (T) et/ou une pression et/ou un débit volumique (Q) de la dispersion et/ou une température et/ou une pression et/ou un débit volumique (Q) du gaz et/ou une température et/ou une pression et/ou un débit volumique (Q) de la suspension,
    • comparaître une valeur momentanément détectée avec une valeur de référence associée, et
    • régler un dispositif et/ou une unité et/ou un appareil (14, 22, 28, 114, 122, 128, 144) associé à une valeur respective de telle sorte qu'une valeur instantanée se rapproche de la valeur de référence associée.
  14. Procédé selon la revendication 12 ou 13,
    caractérisé en ce qu'une valeur de référence respective et/ou une valeur instantanée respective sont normalisées à des conditions normalisées prédéfinies avant l'étape de comparaison.
  15. Procédé selon la revendication 14,
    caractérisé en ce qu'une indication de volume des conditions normalisées est effectuée en litres normalisés NL à 0°C et à une pression atmosphérique absolue de 1013,25 mbar.
EP19758705.8A 2018-08-23 2019-08-22 Dispositif de production de matériaux de construction expansés Active EP3840923B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018214262.9A DE102018214262A1 (de) 2018-08-23 2018-08-23 Vorrichtung zum Erzeugen von geschäumten Baustoffen
PCT/EP2019/072442 WO2020039021A1 (fr) 2018-08-23 2019-08-22 Dispositif de production de matériaux de construction expansés

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EP3840923A1 EP3840923A1 (fr) 2021-06-30
EP3840923C0 EP3840923C0 (fr) 2023-06-28
EP3840923B1 true EP3840923B1 (fr) 2023-06-28

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EP (1) EP3840923B1 (fr)
CN (1) CN112638607B (fr)
AU (1) AU2019323687B2 (fr)
CA (1) CA3110307A1 (fr)
DE (1) DE102018214262A1 (fr)
ES (1) ES2953018T3 (fr)
PL (1) PL3840923T3 (fr)
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ES2953018T3 (es) 2023-11-07
CN112638607A (zh) 2021-04-09
PL3840923T3 (pl) 2023-10-09
EP3840923C0 (fr) 2023-06-28
CN112638607B (zh) 2022-10-18
AU2019323687B2 (en) 2024-10-10
WO2020039021A1 (fr) 2020-02-27
DE102018214262A1 (de) 2020-02-27
AU2019323687A1 (en) 2021-03-11
CA3110307A1 (fr) 2020-02-27
US20210213641A1 (en) 2021-07-15
EP3840923A1 (fr) 2021-06-30

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