US3338560A - Mixing apparatus - Google Patents

Mixing apparatus Download PDF

Info

Publication number
US3338560A
US3338560A US448529A US44852965A US3338560A US 3338560 A US3338560 A US 3338560A US 448529 A US448529 A US 448529A US 44852965 A US44852965 A US 44852965A US 3338560 A US3338560 A US 3338560A
Authority
US
United States
Prior art keywords
mixing head
output end
mixing
tubular element
coupled
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.)
Expired - Lifetime
Application number
US448529A
Inventor
Melvin F Katzer
Richard A Gierak
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.)
Dow Chemical Co
Original Assignee
Dow Chemical Co
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 Dow Chemical Co filed Critical Dow Chemical Co
Priority to US448529A priority Critical patent/US3338560A/en
Application granted granted Critical
Publication of US3338560A publication Critical patent/US3338560A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C99/00—Subject matter not provided for in other groups of this subclass
    • A62C99/009—Methods or equipment not provided for in groups A62C99/0009 - A62C99/0081
    • 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
    • B01F23/30—Mixing gases with solids
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/312—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/312—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof
    • B01F25/3124—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof characterised by the place of introduction of the main flow
    • B01F25/31241—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof characterised by the place of introduction of the main flow the main flow being injected in the circumferential area of the venturi, creating an aspiration in the central part of the conduit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/312—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof
    • B01F25/3124—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof characterised by the place of introduction of the main flow
    • B01F25/31243—Eductor or eductor-type venturi, i.e. the main flow being injected through the venturi with high speed in the form of a jet
    • 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
    • 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
    • B01F35/711—Feed mechanisms for feeding a mixture of components, i.e. solids in liquid, solids in a gas stream
    • 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
    • B01F35/7173—Feed mechanisms characterised by the means for feeding the components to the mixer using gravity, e.g. from a hopper
    • 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
    • B01F35/71805—Feed mechanisms characterised by the means for feeding the components to the mixer using valves, gates, orifices or openings
    • 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
    • B01F35/833—Flow control by valves, e.g. opening intermittently

Definitions

  • Some commercially available units marketed for mixing fire-retardants with water are of the vacuum developing eductor type.
  • a powdered solid is discharged through a port into a partial vacuum created by the flow of water through the eductor. If the water flow changes, so does the degree of vacuum produced and so the rate of flow of the particulated solids changes too. So-called slugs of powder may be introduced into the dispersing devices which result a non-homogenous (lumpy) output of the dispersing device.
  • the main problem sought to be solved by the prior art resides in the fact that powdered particles resist wetting.
  • the individual particles tend to cling together in lumps and wetting at the surface of the lump as a whole is favored.
  • the problem is solved by pre-mixing the solutions or dispersions in large agitated tanks.
  • the mixed material may then be pumped through more or less conventional piping to wherever it is to be used or stored.
  • Efiicient fire-fighting operation requires on the spot mixing with the lightest, simplest, most rugged equipment available.
  • a principal object of this invention is to provide an improved apparatus for making solutions or dispersions from particulated materials and liquids.
  • Another object of this invention is to provide an improved, more reliable to operate apparatus for making solutions or dispersions from particulated materials and liquids.
  • a further object of this invention is to provide an improved, reliable and economical apparatus for making solutions and dispersions from particulated materials and liquids.
  • mixing apparatus comprising a mixing head having coupled to it valve and screen apparatus adapted to be coupled to a source of liquid which is under pressure.
  • a particulated materials reservoir is coupled to a gas inlet tube which extends from said mixing head.
  • the gas inlet tube extends axially into said mixing head and ends downstream from the part of said mixing head to which the valve and screen apparatus are coupled.
  • a nozzle is coupled to the output end of the mixer head.
  • mixing apparatus indicated generally by the numeral 10 which comprises a mixing head, indicated generally by the numeral 12, a particulated materials reservoir, indicated generally by the numeral 14, and a liquid feed assembly, indicated generally by the numeral 16.
  • the mixing head 12 is a hollow T-shaped member which has a bushing 18 coupled to one end and a nozzle or snout 20 coupled to its other or output end 22.
  • the bushing 18 has a tube 24 coupled thereto which extends axially into the interior of the mixing head 12, ending at a point well beyond the bore 26 (the side entry bore of the T) towards the output end 22 of the head 12.
  • the outer diameter of the tube 24 is a major fraction of the inner diameter of the head 12.
  • a second tube 28 is coupled in end-to-end relationship with respect to the tube 24 and extends outside of the head 12 in the opposite direction in which the nozzle 20 extends.
  • the particulated materials reservoir 14 which may have venting means 30 therein, is fixedly coupled to the tube 28 through a valve 32 and tubing 34.
  • the reservoir 14 is coupled so that, during operation, the reservoir 30 is disposed above the mixing head 12.
  • the liquid feed assembly 16 is coupled at one end to a source of liquid (water, for example) as from the tubing 36 and at the other end to the bore 26 in the mixing head 12.
  • a source of liquid water, for example
  • the assembly 16 as shown, comprises a T-like element 38 which has a strainer screen 40 disposed across the output flow path of the element.
  • the side port 42 is coupled to a valve 44.
  • the output end 46 of the element 38 is coupled to the side inlet 48 of a T -coupling 50.
  • a liquid flow control valve 52 is coupled between the bore 26 of the mixing head 12 and one end of the T-coupling 50.
  • a bleed valve 54 is coupled to the other end of the T-element 50.
  • the powder which flows by gravity into the tube 28, then is carried by air flow into the tube 24, becoming pre-dispersed during its passage down the tubes 24 and 28 before it enters the stream of liquid near the output end of the mixing head 12.
  • the screen 40 catches material from the liquid which might tend to clog the mixing head 12.
  • the screen 40 may usually be cleaned by opening the valve 44 and closing the valve 52, thereby sweeping adhering material from the screen.
  • the valve 54 may be coupled to a sample bleed line or to a pressure gauge, for example.
  • having the outer diameter of the tube 24 be a major fraction of the inner diameter of the head 12 results in, for a given volume rate of flow of liquid, a higher linear flow rate or water velocity, for example, giving better mixing where the powder-air and water streams come together downstream and prevents any splash back of water into the inner tube. Further, the higher water velocity and the cylindrical shape of the water stream just below the outlet of the inner tube ensures that no solids will contact or adhere to the mixing head wall.
  • Mixing apparatus for preparing solutions or dispersions from a mixture of particulated materials and liquids, comprising a tubular mixing head having side walls, an input end and an output end, said side walls having a liquid entry port disposed a substantial distance from said output end and between said input end and output end, said input end being closed and having a fluid impervious walled tubular element extending therethrough which has an input and output end, the output end of said tubular element extending beyond said liquid entry port in the direction of the output end of said mixing head, the tubular element being in alignment with the longitudinal axis of said mixing head, the input end of said tubular element extending externally of said mixing head substantially beyond said input end of the mixing head, a particulated materials reservoir, valved means rigidly coupling said reservoir to said tubular element between said mixing head and the input end of said tubular element, a nozzle, said nozzle being coupled to the output end of said mixing head, valved means coupled to said liquid entry port for introducing liquid under pressure to said mixing head, and means for introducing
  • valved means for introducing liquid includes a filter screen.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Dispersion Chemistry (AREA)

Description

United States Patent 3,338,560 MIXING APPARATUS Melvin F. Katzer, Danville, and Richard A. Gierak, Glendale, Calif., assignors to The Dow Chemical Company, Midland, Mich., a corporation of Delaware Filed Apr. 15, 1965, Ser. No. 448,529 6 Claims. (Cl. 259-4) This invention relates to devices for dispersing powdered solids in liquids and particularly to a portable device of simple structure for preparing and dispersing such dispersions.
Commercially available devices for dispersing solids in liquids commonly include eductors which employ an eductor developed vacuum in their operation.
Some commercially available units marketed for mixing fire-retardants with water are of the vacuum developing eductor type.
In such devices a powdered solid is discharged through a port into a partial vacuum created by the flow of water through the eductor. If the water flow changes, so does the degree of vacuum produced and so the rate of flow of the particulated solids changes too. So-called slugs of powder may be introduced into the dispersing devices which result a non-homogenous (lumpy) output of the dispersing device.
If the solid feed port plugs or is closed and the water flow is appreciably reduced, water tends to back flow, effectively disabling the device. Disassembling, cleaning and drying are required before the device may again be operated.
The main problem sought to be solved by the prior art resides in the fact that powdered particles resist wetting. The individual particles tend to cling together in lumps and wetting at the surface of the lump as a whole is favored.
Often, where such action is permitted, the problem is solved by pre-mixing the solutions or dispersions in large agitated tanks. The mixed material may then be pumped through more or less conventional piping to wherever it is to be used or stored.
The above mentioned pre-mixing procedure is usually not practical for field use in preparing solutions or dispersions for agricultural or fire-fighting applications.
In fire-fighting, particularly, natural water supplies must be used whenever possible to minimize Water haulmg.
Efiicient fire-fighting operation requires on the spot mixing with the lightest, simplest, most rugged equipment available.
Similarly, on the spot mixing is highly preferable for agricultural applications such as charging sprayers or introducing chemicals into irrigation Water.
Accordingly, a principal object of this invention is to provide an improved apparatus for making solutions or dispersions from particulated materials and liquids.
Another object of this invention is to provide an improved, more reliable to operate apparatus for making solutions or dispersions from particulated materials and liquids.
A further object of this invention is to provide an improved, reliable and economical apparatus for making solutions and dispersions from particulated materials and liquids.
In accordance with this invention there is provided mixing apparatus comprising a mixing head having coupled to it valve and screen apparatus adapted to be coupled to a source of liquid which is under pressure.
A particulated materials reservoir is coupled to a gas inlet tube which extends from said mixing head. The gas inlet tube extends axially into said mixing head and ends downstream from the part of said mixing head to which the valve and screen apparatus are coupled.
A nozzle is coupled to the output end of the mixer head.
The invention, as well as additional objects and advantages thereof, will best be understood when the following detailed description is read in connection with the accompanying drawing in which the single figure shows an elevational view, partly broken away and in section, of apparatus in accordance with this invention.
Referring to the drawing, there is shown mixing apparatus, indicated generally by the numeral 10, which comprises a mixing head, indicated generally by the numeral 12, a particulated materials reservoir, indicated generally by the numeral 14, and a liquid feed assembly, indicated generally by the numeral 16.
The mixing head 12 is a hollow T-shaped member which has a bushing 18 coupled to one end and a nozzle or snout 20 coupled to its other or output end 22. The bushing 18 has a tube 24 coupled thereto which extends axially into the interior of the mixing head 12, ending at a point well beyond the bore 26 (the side entry bore of the T) towards the output end 22 of the head 12. The outer diameter of the tube 24 is a major fraction of the inner diameter of the head 12.
A second tube 28 is coupled in end-to-end relationship with respect to the tube 24 and extends outside of the head 12 in the opposite direction in which the nozzle 20 extends.
The particulated materials reservoir 14, which may have venting means 30 therein, is fixedly coupled to the tube 28 through a valve 32 and tubing 34. The reservoir 14 is coupled so that, during operation, the reservoir 30 is disposed above the mixing head 12.
The liquid feed assembly 16 is coupled at one end to a source of liquid (water, for example) as from the tubing 36 and at the other end to the bore 26 in the mixing head 12.
The assembly 16, as shown, comprises a T-like element 38 which has a strainer screen 40 disposed across the output flow path of the element. The side port 42 is coupled to a valve 44.
The output end 46 of the element 38 is coupled to the side inlet 48 of a T -coupling 50. A liquid flow control valve 52 is coupled between the bore 26 of the mixing head 12 and one end of the T-coupling 50. A bleed valve 54 is coupled to the other end of the T-element 50.
In operation, with the tubing 36 coupled to a source of liquid which is under pressure and with the valves 44 and 54 closed and valve 52 open, water (or other suitable liquid) enters the mixing head 12 through the side bore 26 and then exits through the nozzle 20. A partial vacuum is created in the tubes 24 and 28 which communicate with the atmosphere (at the end 56 of the tube 28). The partial vacuum causes air to flow from the tube 28 into the mixing head 12, carrying with it particulated material from the reservoir 14 (with the valve 32 opened to permit a suitable flow of powder).
The powder, which flows by gravity into the tube 28, then is carried by air flow into the tube 24, becoming pre-dispersed during its passage down the tubes 24 and 28 before it enters the stream of liquid near the output end of the mixing head 12.
If, during operation, the nozzle is elevated above the Patented Aug. 29, 1967 ations in the water flow. Experience has shown that adequate proportioning control of the powder to liquid ratio is readily obtained if the pumping rate is reasonably steady.
One use to which this apparatus is particularly Well suited is for producing and applying dispersions of fire retardant materials.
Because so-called natural sources of water are so often used in fire fighting operations, the screen 40 catches material from the liquid which might tend to clog the mixing head 12. The screen 40 may usually be cleaned by opening the valve 44 and closing the valve 52, thereby sweeping adhering material from the screen.
The valve 54 may be coupled to a sample bleed line or to a pressure gauge, for example.
It should be emphasized that having the outer diameter of the tube 24 be a major fraction of the inner diameter of the head 12 results in, for a given volume rate of flow of liquid, a higher linear flow rate or water velocity, for example, giving better mixing where the powder-air and water streams come together downstream and prevents any splash back of water into the inner tube. Further, the higher water velocity and the cylindrical shape of the water stream just below the outlet of the inner tube ensures that no solids will contact or adhere to the mixing head wall.
What is claimed is:
1. Mixing apparatus for preparing solutions or dispersions from a mixture of particulated materials and liquids, comprising a tubular mixing head having side walls, an input end and an output end, said side walls having a liquid entry port disposed a substantial distance from said output end and between said input end and output end, said input end being closed and having a fluid impervious walled tubular element extending therethrough which has an input and output end, the output end of said tubular element extending beyond said liquid entry port in the direction of the output end of said mixing head, the tubular element being in alignment with the longitudinal axis of said mixing head, the input end of said tubular element extending externally of said mixing head substantially beyond said input end of the mixing head, a particulated materials reservoir, valved means rigidly coupling said reservoir to said tubular element between said mixing head and the input end of said tubular element, a nozzle, said nozzle being coupled to the output end of said mixing head, valved means coupled to said liquid entry port for introducing liquid under pressure to said mixing head, and means for introducing gas into said tubular element at a location further from said mixing head than where said reservoir is coupled to said tubular element.
2. Apparatus in accordance with claim 1, wherein said valved means for introducing liquid includes a filter screen.
3. Apparatus in accordance with claim 1, wherein said particulated materials reservoir is vented.
4. Apparatus in accordance with claim 1, wherein the diameter of the tubular element within the mixing head is a major fraction of the diameter of said mixing head.
5. Apparatus in accordance with claim 1, wherein said nozzle is flexible.
6. Apparatus in accordance with claim 1, wherein a filter screen and screen cleaning means are incorporated into said means for introducing liquid.
References Cited UNITED STATES PATENTS 2,747,974 5/1956 Felger 2594 2,784,948 3/1957 Pahl et al. 2594 2,992,084 7/1961 Schropp 2594 3,147,717 10/1964 Smith 259-4 3,147,955 10/1964 Harvey et al 2594 WALTER A. SCHEEL, Primary Examiner.
ROBERT W. JENKINS, Examiner.

Claims (1)

1. MIXING APPARATUS FOR PREPARING SOLUTIONS OF DISPERSIONS FROM A MIXTURE OF PARTICULATED MATERIALS AND LIQUIDS, COMPRISING A TUBULAR MIXING HEAD HAVING SIDE WALLS, AN INPUT END AND AN OUTPUT END, SAID SIDE WALLS HAVING A LIQUID ENTRY PORT DISPOSED A SUBSTANTIAL DISTANCE FROM SAID OUTPUT END AND BETWEEN SAID INPUT END AND OUTPUT END, SAID INPUT END BEING CLOSED AND HAVING A FLUID IMPREVIOUS WALLED TUBULAR ELEMENT EXTENDING THERTHROUGH WHICH HAS AN INPUT AND OUTPUT END, THE OUTPUT END OF SAID TUBULAR ELEMENT EXTENDING BEYOND SAID LIQUID ENTRY PORT IN THE DIRECTION OF THE OUTPUT END OF SAID MIXING HEAD, THE TUBULAR ELEMENT BEING IN ALIGNMENT WITH THE LONGITUDINAL AXIS OF SAID MIXING HEAD, THE INPUT END OF SAID TUBULAR ELEMENT EXTENDING EXTERNALLY OF SAID MIXING HEAD SUBSTANTIALLY BEYOND SAID INPUT END OF THE MIXING HEAD, A PARTICULATED MATERIALS RESERVOIR, VALVED MEANS
US448529A 1965-04-15 1965-04-15 Mixing apparatus Expired - Lifetime US3338560A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US448529A US3338560A (en) 1965-04-15 1965-04-15 Mixing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US448529A US3338560A (en) 1965-04-15 1965-04-15 Mixing apparatus

Publications (1)

Publication Number Publication Date
US3338560A true US3338560A (en) 1967-08-29

Family

ID=23780657

Family Applications (1)

Application Number Title Priority Date Filing Date
US448529A Expired - Lifetime US3338560A (en) 1965-04-15 1965-04-15 Mixing apparatus

Country Status (1)

Country Link
US (1) US3338560A (en)

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3425669A (en) * 1967-11-13 1969-02-04 Preston G Gaddis Dry chemical feeder method and apparatus
US3695586A (en) * 1970-11-05 1972-10-03 Warren R Griffin Mixing apparatus
US3737148A (en) * 1971-11-03 1973-06-05 H Phillips Method of and mixer block for feeding a stream of viscous material
US3759491A (en) * 1971-09-29 1973-09-18 A Pfeuffer Dissolver for solid and liquid materials
US3819157A (en) * 1973-02-01 1974-06-25 Universal Oil Prod Co Mixing apparatus
US3838847A (en) * 1971-01-21 1974-10-01 Fischer Ag Georg Drum mixer for continuous processing of a granular bulk material
US3861652A (en) * 1972-11-15 1975-01-21 Du Pont Mixing device
US3902558A (en) * 1973-12-20 1975-09-02 Mobil Oil Corp Method of recovering oil using a chemical blending system
US3979172A (en) * 1973-03-29 1976-09-07 Snow Brand Milk Products Co., Ltd. Ice cream freezer
US4050677A (en) * 1975-01-20 1977-09-27 A/S Hotaco Mixing device
US4103351A (en) * 1975-07-24 1978-07-25 Alexandr Sergeevich Mamvriisky Apparatus for controlling the density of a plugging fluid
DE2945361A1 (en) * 1979-11-09 1981-05-21 Maizena Gmbh, 2000 Hamburg PLANT FOR CONTINUOUS STARCH MILK TREATMENT
US4482343A (en) * 1982-02-10 1984-11-13 Commissariat A L'energie Atomique Apparatus for dissolving a powder in a liquid solvent
EP1499447A4 (en) * 2002-04-30 2006-06-07 Handleman Avrom Ringle Eductor mixer system
WO2008010721A1 (en) * 2006-07-04 2008-01-24 Heggset Teknologi As A method and device for admixture of powder in a liquid
US20080134805A1 (en) * 2005-04-12 2008-06-12 Alain Blasco Dilution apparatus and method
US20100220549A1 (en) * 2007-10-18 2010-09-02 Peter Holdsworth Process for preparing and applying pesticide or herbicide formulation
US20160053119A1 (en) * 2014-08-19 2016-02-25 Atlas James Russell System, method, apparatus, means, and computer program product for recycling asphalt shingles
DE102017111332A1 (en) * 2017-03-20 2018-09-20 Schulz Gmbh Device and method for dosing disinfectants and / or cleaning agents
US20230033222A1 (en) * 2021-07-28 2023-02-02 Stewart & Stevenson Llc Integrated blender and friction reducer system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2747974A (en) * 1953-08-18 1956-05-29 Olin Mathieson Mixer
US2784948A (en) * 1951-05-18 1957-03-12 Crown Cork & Seal Co Liquid mixing device
US2992084A (en) * 1956-08-24 1961-07-11 Four Industriel Belge Apparatus for regulating the composition of a mixture of air and fuel-gas
US3147955A (en) * 1960-08-15 1964-09-08 Union Carbide Corp Apparatus for dispersing finely-divided solids in liquids
US3147717A (en) * 1963-02-12 1964-09-08 Verle D Smith Blending apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2784948A (en) * 1951-05-18 1957-03-12 Crown Cork & Seal Co Liquid mixing device
US2747974A (en) * 1953-08-18 1956-05-29 Olin Mathieson Mixer
US2992084A (en) * 1956-08-24 1961-07-11 Four Industriel Belge Apparatus for regulating the composition of a mixture of air and fuel-gas
US3147955A (en) * 1960-08-15 1964-09-08 Union Carbide Corp Apparatus for dispersing finely-divided solids in liquids
US3147717A (en) * 1963-02-12 1964-09-08 Verle D Smith Blending apparatus

Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3425669A (en) * 1967-11-13 1969-02-04 Preston G Gaddis Dry chemical feeder method and apparatus
US3695586A (en) * 1970-11-05 1972-10-03 Warren R Griffin Mixing apparatus
US3838847A (en) * 1971-01-21 1974-10-01 Fischer Ag Georg Drum mixer for continuous processing of a granular bulk material
US3759491A (en) * 1971-09-29 1973-09-18 A Pfeuffer Dissolver for solid and liquid materials
US3737148A (en) * 1971-11-03 1973-06-05 H Phillips Method of and mixer block for feeding a stream of viscous material
US3861652A (en) * 1972-11-15 1975-01-21 Du Pont Mixing device
US3819157A (en) * 1973-02-01 1974-06-25 Universal Oil Prod Co Mixing apparatus
US3979172A (en) * 1973-03-29 1976-09-07 Snow Brand Milk Products Co., Ltd. Ice cream freezer
US3902558A (en) * 1973-12-20 1975-09-02 Mobil Oil Corp Method of recovering oil using a chemical blending system
US4050677A (en) * 1975-01-20 1977-09-27 A/S Hotaco Mixing device
US4103351A (en) * 1975-07-24 1978-07-25 Alexandr Sergeevich Mamvriisky Apparatus for controlling the density of a plugging fluid
DE2945361A1 (en) * 1979-11-09 1981-05-21 Maizena Gmbh, 2000 Hamburg PLANT FOR CONTINUOUS STARCH MILK TREATMENT
US4482343A (en) * 1982-02-10 1984-11-13 Commissariat A L'energie Atomique Apparatus for dissolving a powder in a liquid solvent
EP1499447A4 (en) * 2002-04-30 2006-06-07 Handleman Avrom Ringle Eductor mixer system
US7871194B2 (en) * 2005-04-12 2011-01-18 Malvern Instruments Limited Dilution apparatus and method
US20080134805A1 (en) * 2005-04-12 2008-06-12 Alain Blasco Dilution apparatus and method
WO2008010721A1 (en) * 2006-07-04 2008-01-24 Heggset Teknologi As A method and device for admixture of powder in a liquid
CN101506396B (en) * 2006-07-04 2012-03-21 赫格塞特技术公司 A method and device for admixture of powder in a liquid
US20100050815A1 (en) * 2006-07-04 2010-03-04 Heggset Teknologi As Method and device for admixture of powder in a liquid
AU2007275955B2 (en) * 2006-07-04 2011-06-16 Heggset Teknologi As A method and device for admixture of powder in a liquid
AU2007275955A8 (en) * 2006-07-04 2011-08-11 Heggset Teknologi As A method and device for admixture of powder in a liquid
AU2007275955B8 (en) * 2006-07-04 2011-08-11 Heggset Teknologi As A method and device for admixture of powder in a liquid
US8128726B2 (en) 2006-07-04 2012-03-06 Heggset Teknologi As Method and device for admixture of powder in a liquid
RU2448764C2 (en) * 2006-07-04 2012-04-27 Хеггсет Текнолоджи Ас Method and device for adding powder to fluid
US20100220549A1 (en) * 2007-10-18 2010-09-02 Peter Holdsworth Process for preparing and applying pesticide or herbicide formulation
US20160053119A1 (en) * 2014-08-19 2016-02-25 Atlas James Russell System, method, apparatus, means, and computer program product for recycling asphalt shingles
US9951224B2 (en) * 2014-08-19 2018-04-24 Atlas James Russell System, method, apparatus, means, and computer program product for recycling asphalt shingles
US10323149B2 (en) * 2014-08-19 2019-06-18 Atlas James Russell System, method, apparatus, means, and computer program product for recycling asphalt shingles
DE102017111332A1 (en) * 2017-03-20 2018-09-20 Schulz Gmbh Device and method for dosing disinfectants and / or cleaning agents
DE102017111332B4 (en) 2017-03-20 2022-02-24 Schulz Gmbh Device and method for dosing disinfectants and/or cleaning agents
US20230033222A1 (en) * 2021-07-28 2023-02-02 Stewart & Stevenson Llc Integrated blender and friction reducer system

Similar Documents

Publication Publication Date Title
US3741533A (en) Mixing apparatus
US7866881B2 (en) Dry polymer hydration apparatus and methods of use
US3298669A (en) Eductor mixing apparatus
US3542342A (en) Apparatus for mixing pulverulent material with liquid
US3881656A (en) Mixing apparatus
US3819157A (en) Mixing apparatus
US4542775A (en) Slurry concentration and dilution apparatus
US4390281A (en) Slurry gun
US4448539A (en) Apparatus for mixing solid and liquid substances
US2142947A (en) Mixing apparatus
US6010083A (en) Apparatus and method for generating high quality foam using an air eductor
US6581856B1 (en) Fluid mixer
US1488125A (en) Sprayer
US2932317A (en) Devices for admixing liquids
US2310051A (en) Fluid feeding device
US967450A (en) Combined mixer and sprinkler.
US3563517A (en) Cement slurry mixing system
US1954154A (en) Method of and apparatus for producing fire extinguishing foam
US1541352A (en) Method of and apparatus for mixing materials
CS247154B2 (en) Device for production of cleaning foam from liquids
US5658486A (en) Method and apparatus for producing dust control solution
US2628129A (en) Additive proportioner for fluid lines
US3463460A (en) Pneumatic method of producing cementing slurries
RU2680079C1 (en) Jet mixing unit
US2296718A (en) Mixing nozzle