US2641453A - Pin mixer - Google Patents

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US2641453A
US2641453A US222170A US22217051A US2641453A US 2641453 A US2641453 A US 2641453A US 222170 A US222170 A US 222170A US 22217051 A US22217051 A US 22217051A US 2641453 A US2641453 A US 2641453A
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conduit
mixer
rotor
mixing
mixing chamber
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US222170A
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Robert R Teale
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National Gypsum Co
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National Gypsum Co
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    • 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
    • B01F27/27—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices
    • B01F27/271—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices with means for moving the materials to be mixed radially between the surfaces of the rotor and the stator
    • 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
    • B28C5/0881—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 having a stator-rotor system with intermeshing teeth or cages
    • 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
    • B01F2025/91—Direction of flow or arrangement of feed and discharge openings
    • B01F2025/912—Radial flow
    • 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
    • B01F27/27—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices
    • B01F27/271—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices with means for moving the materials to be mixed radially between the surfaces of the rotor and the stator
    • B01F27/2711—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices with means for moving the materials to be mixed radially between the surfaces of the rotor and the stator provided with intermeshing elements
    • 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

Definitions

  • This invention relates" to mixers and refers particularly to mixers for preparing slurries of cementitious materials
  • the principles of the mixer of the presentinven'tion may be applied in mixing various materials, but its advantages are particularly evident in preparing slurries for the manufacture of gypsum products, and its constructionjand op"- eration will accordinglybe discussed herein” as applied to the mixing of calcined ypsum or stucco and water to form a slurry of gypsum plaster.
  • the principles of the present invention are particularly adaptable to mixers of the type known in the art as pin mixers wherein the mixer is' in the form of a relatively fiat cylinder mounted on a vertical axis with the materials moving through the mixer as a combined result of the force of gravity and centrifugal'for'ce and discharging near an edge or peripheral portion of the mixer casing.
  • the mixer is customary to introduce the calcined gypsum or stucco and the water at different points located somewhat in the vicinity of the center of the mixer, but conventional construction is such that it isusual to have these two feed entrances disposed separately and each located eccentrically of the center of the mixing chamber and eccentrically of the axis of rotation of the mixing rotor.
  • the mixer of the present invention is so arranged and constructed that it is possibleto introduce both the calcined gypsum or stucco-and the water centrally of the mixer and in such a" way'that their paths and the lengths of their paths in all radial directions to the periphery of the mixer are entirely uniform. Further, this arrangement results in all of the calcined gypsum v or stucco being supplied with water atthe same distance from the axis of the mixer andre'sults 7 Claims. (01-; 259 8) 2* all of the calcined gfyipsunib'eii'igsupplied with absolutely uniform rel'ativ quantities"or water?
  • Fig; 1 is a top plan view; partly in arose-sec: tion, of oneforrmof them'ixer' of the presentin vention;
  • Fig. 2 is adongitudiiial cross-sectional View 011 a somewhat iargr scale" and taken On" the" line IIII of Fig. 1.
  • a separating sleeve which is likewise coaxial with the conduit 20 and with the axis of rotor I5 is mounted fixedly on a plate 26, which, in turn, is secured to rotor I5 as by means of a plurality of studs 21.
  • a cap 28 extends over the upper end of sleeve 25 and in the illustrated instance is fixed to the downwardly extending portion 22 of the water inlet conduit.
  • Cap 28 is provided with an annular depending flange which extends downwardly over the upper end of sleeve 25, so that cap 28 and sleeve 25 serve to isolate the flow of calcined gypsum or stucco and the fiow of water until the water passes beneath plate 26 and reaches the inner-. most circular series of the mixing'pins. However, cap 28 and sleeve 25 are out of contact so that free rotation of sleeve 25 relative to the cap is not interfered with.
  • an upstanding circular series of pins 30 is carried by plate 28 and extends upwardly in the space between sleeve 25 and gypsum conduit 20, the pins serving to keep the incoming calcined gypsum or stucco in a loose and clear flowing condition.
  • the flow of mixing water and gypsum from the center of the mixer toward the periphery is thus entirely uniform in various directions about the mixer both as to quantity and proportions and the rate of flow is substantially uniform because of these equal values and the uniform centrifugal force on the materials.
  • the material, after passing radially beyond the various intermeshing mixing pins l4 and [8, may be discharged in any desirable manner and at any number of points around the periphery of the mixer. In the present instance, and by way of example only, a discharge spout is designated 3
  • pin mixer and mixing pins are employed and the pins l4 and I8 are shown as being of circular cross-section.
  • pin is used in a generic sense, and that the pins or bars may be of square or rectangular crosssection or otherwise, that various combinations of pins and bars may be employed, and that the claims are to be construed in that light.
  • a pin mixer a generally cylindrical casing having a vertical axis and radially extending top and bottom walls, a plurality of stationary mixing pins projecting downwardly from the top wall of said casing, a discoidal rotorin said casing having a plurality of upwardly projecting mixing pins, located so as to pass between the stationary mixing pins upon rotation of said rotor, rotary drive means at the under side of said rotor, an inlet conduit communicating with said mixer concentrically through said top wall, and a second conduit extending within said first conduit centrally thereof and downwardly in said mixer substantially below the lower end of the first conduit, sleeve means carried by said rotor with its lower end adjacent to the lower end of said second conduit and extending upwardly between said conduits concentrically and spaced radially from both, conduits, and a concentric cap carried by said second conduit and extending over the upper end of said sleeve means, whereby said cap and said sleeve means insure isolation of thematerials of the two
  • a pin mixer a generally cylindrical casing having a vertical axis and radially extending top and bottom walls, a plurality of stationary mixing pins projecting downwardly from the top wall of said casing, a discoidal rotor in said casing having a plurality of upwardly projecting mixing pins, located so as to pass between the stationary mixing pins upon rotation of said rotor, rotary drive means at the under side of said rotor, an inlet conduit communicating with said mixer concentrically through said top wall, and a second conduit extending within said first conduit centrally thereof and downwardly into said mixer whereby both conduits discharge material uniformly coaxially in said chamber, sleeve means carried by said rotor with its lower end adjacent to the lower end of said second conduit and extending upwardly between said conduits concentrically and spaced radially from both conduits, and a concentric cap carried by said second conduit and extending over the upper end of said sleeve means, whereby said cap and said sleeve means insure isolation of the
  • a casing forming an annular mixing chamber, a discoidal rotor therein having a substantially vertical axis, rotary drive means at the under side of said rotor, an inlet conduit disposed above said casing and communicating with said mixing chamber centrally thereof through the upper wall of said chamber, and a second inlet conduit extending downwardly into said mixing chamber within said first conduit and centrally thereof, said second conduit extending downwardly in said casing substantially beyond the lower end of said first conduit, sleeve means carried by said rotor with its lower end adjacent to the lower end of said second conduit and extending upwardly between said conduits concentrically and spaced radially from both conduits, and a concentric cap 7 carried by said second conduit and extending over the upper end of said sleeve means, whereby said cap and said sleeve means insure isolation of the materials of the two conduits until they merge in the mixing chamber.
  • a mixing device a casing forming an annular mixing chamber, a discoidal rotor therein having a substantially vertical axis, rotary drive means at the under side of said rotor, an inlet conduit disposed above said casing and communicating with said mixing chamber centrally thereof through the upper wall of said chamber,
  • both conduits discharge material uniformly coaxially in said chamber
  • sleeve means carried by said rotor with its lower end adjacent to the lower end of said second conduit and extending upwardly between said conduits concentrically and spaced radially from both conduits, and a concentric cap.
  • nular mixing chamber a discoidal rotor therein having a substantially vertical axis, rotary drive means at the under side of said rotor, an inlet conduit disposed above said casing and communicating with said mixing chamber centrally thereof through the upper wall of said chamber, and a second inlet conduit extending downwardly into said mixing chamber within said first conduit and centrally thereof, whereby both conduits discharge material uniformly coaxially in said chamber, an annular plate extending about said second conduit and underlying the discharge portion of the first conduit, whereby material feeding into the mixing chamber from said first conduit moves radially outwardly above said annular plate and the material feeding into the mixing chamber from said second conduit moves radially outwardly below said plate and the two materials commingle only after passing radially outwardly beyond said plate.
  • annular mixing chamber an annular mixing chamber, a discoidal rotor in said chamber, a drive shaft for said rotor fixed concentrically thereto and extending downwardly out of said chamber and a pair of coaxial conduits of different diameter communicating with the upper wall of said chamber concentrically thereof for introducing a plurality of ingredients by coaxial concentric downward flow, an annular plate surrounding the lower end of the inner of said conduits and spaced below the lower end of the outer of said conduits whereby material feeding into the mixing chamber through the inner conduit moves radially outwardly beneath said annular plate and material feeding into the mixing chamber through the outer of said conduits moves radially outwardly above said annular plate and the respective materials commingle only after passing radially outwardly beyond said plate.
  • a mixing device a casing forming an annular mixing chamber, a discoidal rotor therein' having a substantially vertical axis, rotary drive means at the under side of said rotor, an inlet conduit disposed above said casing and communicating with said mixing chamber centrally thereof through the upper wall of said chamber, and a second inlet conduit extending downwardly into said mixing chamber within said first conduit and centrally thereof, whereby both conduits discharge material uniformly coaxially in said chamber, means extending about said second conduit and including an annular plate underlying the discharge portion of the first conduit, whereby material feeding into the mixing chamber from said first conduit moves radially outwardly above said annular plate and material feeding into the mixing chamber from said second conduit moves radially outwardly below said plate and the two materials commingle onlyafter passing radially outwardly beyond said plate.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)

Description

June 9, 1953 R. R. TEALE ,6 5
PIN MIXER Filed April 21 1951 INVENTOR.
Patented June 9, 1953 UNITED STATES OFFICE PIN 4 Robert R.-'1?eale-, sn'y'uer, N. Y., assigndr' to' Na tiorial Gyiisu'fii -company; B'ufia'lm -Nl Y. Application Aprii 21, 1951.Serial N o; 2221110 This invention relates" to mixers and refers particularly to mixers for preparing slurries of cementitious materials The principles of the mixer of the presentinven'tion may be applied in mixing various materials, but its advantages are particularly evident in preparing slurries for the manufacture of gypsum products, and its constructionjand op"- eration will accordinglybe discussed herein" as applied to the mixing of calcined ypsum or stucco and water to form a slurry of gypsum plaster.
The principles of the present invention are particularly adaptable to mixers of the type known in the art as pin mixers wherein the mixer is' in the form of a relatively fiat cylinder mounted on a vertical axis with the materials moving through the mixer as a combined result of the force of gravity and centrifugal'for'ce and discharging near an edge or peripheral portion of the mixer casing. In such mixers it is customary to introduce the calcined gypsum or stucco and the water at different points located somewhat in the vicinity of the center of the mixer, but conventional construction is such that it isusual to have these two feed entrances disposed separately and each located eccentrically of the center of the mixing chamber and eccentrically of the axis of rotation of the mixing rotor.
, Ordinarily the shaft of the mixing rotor and its supporting bearings require that the separate entrance orifices for gypsum and water be located at points spaced from the central region of the mixer. This design and construction, while generally conventional in this art, results in certain undesirable unevenness and inequal-' ity in mixing results, since the radial path from the point where the gypsum is introduced to the periphery of the mixer is unequal in various directions, the radial path from the point where the water is introduced to the periphery of the mixer in various directions is unequal, and the paths of the two materials are not the same invarious directions.
The mixer of the present invention is so arranged and constructed that it is possibleto introduce both the calcined gypsum or stucco-and the water centrally of the mixer and in such a" way'that their paths and the lengths of their paths in all radial directions to the periphery of the mixer are entirely uniform. Further, this arrangement results in all of the calcined gypsum v or stucco being supplied with water atthe same distance from the axis of the mixer andre'sults 7 Claims. (01-; 259 8) 2* all of the calcined gfyipsunib'eii'igsupplied with absolutely uniform rel'ativ quantities"or water? 1 the embodiment of theiiiiiefitioli, WIii'chiis setfbitlfindetailhereirfb3 way of example, this result is effected by introducing the" calcined gypsum in an annular flow concentric with the axis of the mixer", the" water being" introduced centrauy Within such" annulus" and by: means Of a" conduit likewise" concentric with" the" axis" Of themixer.
Various mechanical modifications of the mixer may be made without departing from the principles" 0'1" themes-emf invention; A single Spell iile" embodiment is illustrated in: the" drawings and described herein" mere1y" wayfexamme' but the present, invention is" lii nited thereto or otherwise excepting a's" definedin the append: ed claims.
Fig; 1 is a top plan view; partly in arose-sec: tion, of oneforrmof them'ixer' of the presentin vention; and
Fig. 2 is adongitudiiial cross-sectional View 011 a somewhat iargr scale" and taken On" the" line IIII of Fig. 1.
Like characters of refere'nce denot'e-lile parts, and the numeral Hi" designates generally" a flat cylindrical casingh'avihga radial botterii' wall H and-a circularside-wall i2 1 A co'v'er elementIt completes the casing and is provided with a nun'ib'e'r or concentnc circuiar seriesorstationary depending pin's l4; 7
ilh'e' l'r'iixirig" 're'tr. 'rcomprises-generally a fla't disc I5 having a? mounting slfaft" portion I 6 which may passthrough stuflin'g 'b'o'x or packing ar ranger nent I! in the radial b'ott'emw'all H of casing element l0',lalthough there is-ne'ce'ssityfor a packed joint or a tight mat the point where the rotor shaft l6 passes downwardly through I The" manner which the shaftlB is mounted for driving-rota? bottom wall H of the casing.
tio'n' an'd the manner in which it' is driven form no part of the novel structure o'f'the pre's'entin vention' and accordingly needn'ot be illustrated '01- described;
Wardlybetween the circular rows of' pins M as appears clearlyin- Fig2 2:
'Ilhefcovef mem er [3 of tlie mixing chamber is' -pro'vided with a central conduit 20' for intr'o duc'ing I a downward new of" dry calcined gypsum in any desired manner, and its terminal portion extends downwardly centrally of the mixer and centrally of conduit 20 as at 22 in Fig. 2. The terminal portion 22 of water conduit 2| preferably extends down to a point fairly close to the top surface of rotor [5, so that water is forced therefrom uniformly in all radial directions.
A separating sleeve which is likewise coaxial with the conduit 20 and with the axis of rotor I5 is mounted fixedly on a plate 26, which, in turn, is secured to rotor I5 as by means of a plurality of studs 21. A cap 28 extends over the upper end of sleeve 25 and in the illustrated instance is fixed to the downwardly extending portion 22 of the water inlet conduit.
Cap 28 is provided with an annular depending flange which extends downwardly over the upper end of sleeve 25, so that cap 28 and sleeve 25 serve to isolate the flow of calcined gypsum or stucco and the fiow of water until the water passes beneath plate 26 and reaches the inner-. most circular series of the mixing'pins. However, cap 28 and sleeve 25 are out of contact so that free rotation of sleeve 25 relative to the cap is not interfered with.
Preferably an upstanding circular series of pins 30 is carried by plate 28 and extends upwardly in the space between sleeve 25 and gypsum conduit 20, the pins serving to keep the incoming calcined gypsum or stucco in a loose and clear flowing condition.
The flow of mixing water and gypsum from the center of the mixer toward the periphery is thus entirely uniform in various directions about the mixer both as to quantity and proportions and the rate of flow is substantially uniform because of these equal values and the uniform centrifugal force on the materials. The material, after passing radially beyond the various intermeshing mixing pins l4 and [8, may be discharged in any desirable manner and at any number of points around the periphery of the mixer. In the present instance, and by way of example only, a discharge spout is designated 3| in Figs. 1 and 2.
In the foregoing specification and the following claims the terms pin mixer and mixing pins are employed and the pins l4 and I8 are shown as being of circular cross-section. However, it is to be understood that the term "pin" is used in a generic sense, and that the pins or bars may be of square or rectangular crosssection or otherwise, that various combinations of pins and bars may be employed, and that the claims are to be construed in that light.
What is claimed is:
1. In a pin mixer, a generally cylindrical casing having a vertical axis and radially extending top and bottom walls, a plurality of stationary mixing pins projecting downwardly from the top wall of said casing, a discoidal rotorin said casing having a plurality of upwardly projecting mixing pins, located so as to pass between the stationary mixing pins upon rotation of said rotor, rotary drive means at the under side of said rotor, an inlet conduit communicating with said mixer concentrically through said top wall, and a second conduit extending within said first conduit centrally thereof and downwardly in said mixer substantially below the lower end of the first conduit, sleeve means carried by said rotor with its lower end adjacent to the lower end of said second conduit and extending upwardly between said conduits concentrically and spaced radially from both, conduits, and a concentric cap carried by said second conduit and extending over the upper end of said sleeve means, whereby said cap and said sleeve means insure isolation of thematerials of the two conduits until they merge in the mixing chamber.
2. In a pin mixer, a generally cylindrical casing having a vertical axis and radially extending top and bottom walls, a plurality of stationary mixing pins projecting downwardly from the top wall of said casing, a discoidal rotor in said casing having a plurality of upwardly projecting mixing pins, located so as to pass between the stationary mixing pins upon rotation of said rotor, rotary drive means at the under side of said rotor, an inlet conduit communicating with said mixer concentrically through said top wall, and a second conduit extending within said first conduit centrally thereof and downwardly into said mixer whereby both conduits discharge material uniformly coaxially in said chamber, sleeve means carried by said rotor with its lower end adjacent to the lower end of said second conduit and extending upwardly between said conduits concentrically and spaced radially from both conduits, and a concentric cap carried by said second conduit and extending over the upper end of said sleeve means, whereby said cap and said sleeve means insure isolation of the materials of the two conduits until they merge in the mixing chamber.
3. In a mixing device, a casing forming an annular mixing chamber, a discoidal rotor therein having a substantially vertical axis, rotary drive means at the under side of said rotor, an inlet conduit disposed above said casing and communicating with said mixing chamber centrally thereof through the upper wall of said chamber, and a second inlet conduit extending downwardly into said mixing chamber within said first conduit and centrally thereof, said second conduit extending downwardly in said casing substantially beyond the lower end of said first conduit, sleeve means carried by said rotor with its lower end adjacent to the lower end of said second conduit and extending upwardly between said conduits concentrically and spaced radially from both conduits, and a concentric cap 7 carried by said second conduit and extending over the upper end of said sleeve means, whereby said cap and said sleeve means insure isolation of the materials of the two conduits until they merge in the mixing chamber.
4. In a mixing device, a casing forming an annular mixing chamber, a discoidal rotor therein having a substantially vertical axis, rotary drive means at the under side of said rotor, an inlet conduit disposed above said casing and communicating with said mixing chamber centrally thereof through the upper wall of said chamber,
and a second inlet conduit extending downwardly into said mixing chamber within said first conduit and centrally thereof, whereby both conduits discharge material uniformly coaxially in said chamber, sleeve means carried by said rotor with its lower end adjacent to the lower end of said second conduit and extending upwardly between said conduits concentrically and spaced radially from both conduits, and a concentric cap.
carried by said second conduit and extending over the upper end of said sleeve means, whereby said cap and said sleeve means insure isolation of the materials of the two conduits until they merge in the mixing chamber.
nular mixing chamber, a discoidal rotor therein having a substantially vertical axis, rotary drive means at the under side of said rotor, an inlet conduit disposed above said casing and communicating with said mixing chamber centrally thereof through the upper wall of said chamber, and a second inlet conduit extending downwardly into said mixing chamber within said first conduit and centrally thereof, whereby both conduits discharge material uniformly coaxially in said chamber, an annular plate extending about said second conduit and underlying the discharge portion of the first conduit, whereby material feeding into the mixing chamber from said first conduit moves radially outwardly above said annular plate and the material feeding into the mixing chamber from said second conduit moves radially outwardly below said plate and the two materials commingle only after passing radially outwardly beyond said plate.
6. In a mixing device, an annular mixing chamber, a discoidal rotor in said chamber, a drive shaft for said rotor fixed concentrically thereto and extending downwardly out of said chamber and a pair of coaxial conduits of different diameter communicating with the upper wall of said chamber concentrically thereof for introducing a plurality of ingredients by coaxial concentric downward flow, an annular plate surrounding the lower end of the inner of said conduits and spaced below the lower end of the outer of said conduits whereby material feeding into the mixing chamber through the inner conduit moves radially outwardly beneath said annular plate and material feeding into the mixing chamber through the outer of said conduits moves radially outwardly above said annular plate and the respective materials commingle only after passing radially outwardly beyond said plate.
7. In a mixing device, a casing forming an annular mixing chamber, a discoidal rotor therein' having a substantially vertical axis, rotary drive means at the under side of said rotor, an inlet conduit disposed above said casing and communicating with said mixing chamber centrally thereof through the upper wall of said chamber, and a second inlet conduit extending downwardly into said mixing chamber within said first conduit and centrally thereof, whereby both conduits discharge material uniformly coaxially in said chamber, means extending about said second conduit and including an annular plate underlying the discharge portion of the first conduit, whereby material feeding into the mixing chamber from said first conduit moves radially outwardly above said annular plate and material feeding into the mixing chamber from said second conduit moves radially outwardly below said plate and the two materials commingle onlyafter passing radially outwardly beyond said plate.
ROBERT R. TEALE.
References Cited in the file of this patent UNITED STATES PATENTS-
US222170A 1951-04-21 1951-04-21 Pin mixer Expired - Lifetime US2641453A (en)

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Cited By (44)

* Cited by examiner, † Cited by third party
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US2945634A (en) * 1955-05-20 1960-07-19 Henschel Werke Ges Mit Beschra Machine for mixing and comminuting materials
US2963736A (en) * 1952-07-28 1960-12-13 Coast Pro Seal Mfg Co Applicator and mixer for viscous materials
US2973153A (en) * 1958-05-16 1961-02-28 Improved Machinery Inc Pulper
US3308171A (en) * 1964-07-17 1967-03-07 Yokohama Seito Kabushiki Kaish Method for producing granular or powdery sorbitol from sorbitol solution
US3423075A (en) * 1967-01-31 1969-01-21 Nat Lead Co Mixing device
US3497144A (en) * 1964-01-24 1970-02-24 Iohannes Alexandrovich Hint Apparatus for treating particulate material
US3640475A (en) * 1968-04-06 1972-02-08 Steinmueller Gmbh L & C Apparatus for breaking up lumpy material
US3711962A (en) * 1970-12-15 1973-01-23 Okawara Mfg Fluidized drying apparatus
DE2232331A1 (en) * 1971-07-24 1973-02-01 Hiroyuki Iwako CONTINUOUSLY OPERATING FLOW JET MIXER
US3744763A (en) * 1970-01-30 1973-07-10 Bayer Ag Apparatus for producing emulsions or suspensions
US4096587A (en) * 1976-03-25 1978-06-20 Escher Wyss Limited Mixer for resin and sand
US4152081A (en) * 1977-03-29 1979-05-01 Messer Griesheim Gmbh Cold milling rubber granulate in a pinned disk mill
US4176972A (en) * 1978-08-09 1979-12-04 National Gypsum Company Coaxial pump mixer
US4269363A (en) * 1978-06-26 1981-05-26 Simmering-Graz-Pauker Aktiengesellschaft Fur Maschinen-, Kessel- Und Waggonbau Method and apparatus for regenerating and reactivating cement
US5501524A (en) * 1993-12-14 1996-03-26 Zuidema; Hette Method for mixing granulates, powders and liquids and a device therefor
US5593099A (en) * 1991-01-17 1997-01-14 Langenecker; Bertwin Apparatus for producing solid fertilizer from liquid substances such as manure from liverstock or sludge
US5690428A (en) * 1995-03-29 1997-11-25 Eastman Kodak Company Mixing device comprising concentric tubes for supplying solutions onto and mixing on a rotor
US5732891A (en) * 1993-12-14 1998-03-31 Langenecker; Bertwin Method and apparatus for producing solid fertilizer from liquid substances such as manure from livestock or sludge
US5759604A (en) * 1994-10-26 1998-06-02 Nestec S.A. Mixing of particulate solids and liquid for fluid food preparation
WO2000001474A1 (en) * 1998-07-02 2000-01-13 Wella Aktiengesellschaft Method for producing aqueous emulsions or suspensions
EP1121974A1 (en) 2000-01-31 2001-08-08 Dr. C. Ekkehard Stelzer Mixing method and apparatus
US20010015935A1 (en) * 2000-01-06 2001-08-23 Babcock-Bsh Gmbh Method of producing a porous paste, especially a porous plaster slurry, and a mixer for preparing such paste or slurry
US20020101782A1 (en) * 2000-12-15 2002-08-01 Hasberg Dirk J. Apparatus for manufacturing photographic emulsions
US6866411B1 (en) 2000-01-31 2005-03-15 Tetra Laval Holdings & Finance S.A. Mixing method and apparatus
WO2005032703A1 (en) * 2003-10-01 2005-04-14 Debio Recherche Pharmaceutique S.A. Device and method for making particles
US20060126427A1 (en) * 2004-07-08 2006-06-15 Vmi Device for continuous mixing of dough, comprising a mixing tool, centrifuge and lateral evacuation
US20060244183A1 (en) * 2005-04-27 2006-11-02 United States Gypsum Company Methods of and systems for adding a high viscosity gypsum additive to a post-mixer aqueous dispersion of calcined gypsum
US20060243171A1 (en) * 2005-04-27 2006-11-02 United States Gypsum Company Wet gypsum accelerator and methods, composition, and product relating thereto
US20060244182A1 (en) * 2005-04-27 2006-11-02 United States Gypsum Company Methods of and systems for preparing a heat resistant accelerant slurry and adding the accelerant slurry to a post-mixer aqueous dispersion of calcined gypsum
US20070064524A1 (en) * 2005-09-19 2007-03-22 Carl Brazelton Polymer mixing apparatus
RU2299091C1 (en) * 2005-11-16 2007-05-20 Институт проблем химико-энергетических технологий СО РАН Rotary-pulsating apparatus for predominantly production of the "liquid-liquid" systems"
US20080080304A1 (en) * 2006-09-28 2008-04-03 Nof Corporation Agitation method, agitation mixer, and feed pipe structure
US20090323458A1 (en) * 2006-04-11 2009-12-31 Wolfgang Fischer Continuous process for performing a chemical reaction in which a gaseous phase is added to a charge system comprising one or more solid phases which have been dissolved or dispersed in water
RU2412751C2 (en) * 2008-07-17 2011-02-27 Государственное образовательное учреждение высшего профессионального образования Белгородский государственный технологический университет им. В.Г. Шухова (БГТУ им. В.Г. Шухова) Installation for mechanical activation of suspensions containing fibrous materials
RU2429066C1 (en) * 2009-12-14 2011-09-20 Государственное образовательное учреждение высшего профессионального образования "Тамбовский государственный технический университет" (ГОУ ВПО ТГТУ) Apparatus for physico-chemical treatment of liquid medium
RU2591974C1 (en) * 2015-02-12 2016-07-20 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Кемеровский технологический институт пищевой промышленности" Rotor-pulsation apparatus
RU2625984C1 (en) * 2016-10-26 2017-07-20 Федеральное государственное бюджетное образовательное учреждение высшего образования "Комсомольский-на-Амуре государственный технический университет" (ФГБОУ ВО "КнАГТУ") Rotor-pulse apparatus
RU2636486C1 (en) * 2016-12-20 2017-11-23 Федеральное государственное бюджетное образовательное учреждение высшего образования "Тихоокеанский государственный университет" Rotary pulsating machine
RU2639799C1 (en) * 2017-04-05 2017-12-22 Федеральное государственное бюджетное образовательное учреждение высшего образования "Тихоокеанский государственный университет" Rotory pulse apparatus
RU2695193C1 (en) * 2018-10-03 2019-07-22 Федеральное государственное бюджетное образовательное учреждение высшего образования "Санкт-Петербургский государственный технологический институт (технический университет)" Rotary pulse apparatus and method of its operation
US10596531B1 (en) * 2016-04-21 2020-03-24 Michael A. Ellis Modular continuous adhesive foam mixer
US11344854B2 (en) 2020-03-12 2022-05-31 Knauf Gips Kg Mixer rotor pin with hole
RU2792356C1 (en) * 2022-11-11 2023-03-21 Федеральное государственное бюджетное учреждение науки Институт проблем химико-энергетических технологий Сибирского отделения Российской академии наук (ИПХЭТ СО РАН) Rotor-pulsation apparatus for dispersion, mostly in "liquid-solid" systems
EP3140625B1 (en) * 2014-05-08 2023-08-30 Zuidema, Casper Johan Mixing device

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US1515798A (en) * 1922-07-06 1924-11-18 Spensley Jacob William Grinding or disintegrating and mixing machine
US1788345A (en) * 1929-12-26 1931-01-06 Thomas J Skirvin Feed mixer and molassizer
US2146776A (en) * 1936-01-21 1939-02-14 Strominger Earl Feed mixer
US2516436A (en) * 1944-11-28 1950-07-25 Walker Lionel Mixing of granular material with liquids

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US2963736A (en) * 1952-07-28 1960-12-13 Coast Pro Seal Mfg Co Applicator and mixer for viscous materials
US2945634A (en) * 1955-05-20 1960-07-19 Henschel Werke Ges Mit Beschra Machine for mixing and comminuting materials
US2973153A (en) * 1958-05-16 1961-02-28 Improved Machinery Inc Pulper
US3497144A (en) * 1964-01-24 1970-02-24 Iohannes Alexandrovich Hint Apparatus for treating particulate material
US3308171A (en) * 1964-07-17 1967-03-07 Yokohama Seito Kabushiki Kaish Method for producing granular or powdery sorbitol from sorbitol solution
US3423075A (en) * 1967-01-31 1969-01-21 Nat Lead Co Mixing device
US3640475A (en) * 1968-04-06 1972-02-08 Steinmueller Gmbh L & C Apparatus for breaking up lumpy material
US3744763A (en) * 1970-01-30 1973-07-10 Bayer Ag Apparatus for producing emulsions or suspensions
US3711962A (en) * 1970-12-15 1973-01-23 Okawara Mfg Fluidized drying apparatus
DE2232331A1 (en) * 1971-07-24 1973-02-01 Hiroyuki Iwako CONTINUOUSLY OPERATING FLOW JET MIXER
US4096587A (en) * 1976-03-25 1978-06-20 Escher Wyss Limited Mixer for resin and sand
US4152081A (en) * 1977-03-29 1979-05-01 Messer Griesheim Gmbh Cold milling rubber granulate in a pinned disk mill
US4269363A (en) * 1978-06-26 1981-05-26 Simmering-Graz-Pauker Aktiengesellschaft Fur Maschinen-, Kessel- Und Waggonbau Method and apparatus for regenerating and reactivating cement
US4176972A (en) * 1978-08-09 1979-12-04 National Gypsum Company Coaxial pump mixer
US5593099A (en) * 1991-01-17 1997-01-14 Langenecker; Bertwin Apparatus for producing solid fertilizer from liquid substances such as manure from liverstock or sludge
US5501524A (en) * 1993-12-14 1996-03-26 Zuidema; Hette Method for mixing granulates, powders and liquids and a device therefor
US5732891A (en) * 1993-12-14 1998-03-31 Langenecker; Bertwin Method and apparatus for producing solid fertilizer from liquid substances such as manure from livestock or sludge
US5759604A (en) * 1994-10-26 1998-06-02 Nestec S.A. Mixing of particulate solids and liquid for fluid food preparation
AU713012B2 (en) * 1994-10-26 1999-11-18 Societe Des Produits Nestle S.A. Mixing of fluids
US5690428A (en) * 1995-03-29 1997-11-25 Eastman Kodak Company Mixing device comprising concentric tubes for supplying solutions onto and mixing on a rotor
WO2000001474A1 (en) * 1998-07-02 2000-01-13 Wella Aktiengesellschaft Method for producing aqueous emulsions or suspensions
US6479041B2 (en) 1998-07-02 2002-11-12 Wella Aktiengesellschaft Method for producing aqueous emulsions or suspensions
US20010015935A1 (en) * 2000-01-06 2001-08-23 Babcock-Bsh Gmbh Method of producing a porous paste, especially a porous plaster slurry, and a mixer for preparing such paste or slurry
US6402359B2 (en) * 2000-01-06 2002-06-11 Babcock-Bsh Gmbh Method of producing a porous paste, especially a porous plaster slurry, and a mixer for preparing such paste or slurry
EP1121974A1 (en) 2000-01-31 2001-08-08 Dr. C. Ekkehard Stelzer Mixing method and apparatus
WO2001056687A1 (en) * 2000-01-31 2001-08-09 Tetra Laval Holdings & Finance S.A. Mixing method and apparatus
US6866411B1 (en) 2000-01-31 2005-03-15 Tetra Laval Holdings & Finance S.A. Mixing method and apparatus
US6443611B1 (en) * 2000-12-15 2002-09-03 Eastman Kodak Company Apparatus for manufacturing photographic emulsions
US6513965B2 (en) * 2000-12-15 2003-02-04 Eastman Kodak Company Apparatus for manufacturing photographic emulsions
US20020101782A1 (en) * 2000-12-15 2002-08-01 Hasberg Dirk J. Apparatus for manufacturing photographic emulsions
US20020101783A1 (en) * 2000-12-15 2002-08-01 Hasberg Dirk J. Apparatus for manufacturing photographic emulsions
US20070071825A1 (en) * 2003-10-01 2007-03-29 Catherine Curdy Device and method for making particles
WO2005032703A1 (en) * 2003-10-01 2005-04-14 Debio Recherche Pharmaceutique S.A. Device and method for making particles
US20060126427A1 (en) * 2004-07-08 2006-06-15 Vmi Device for continuous mixing of dough, comprising a mixing tool, centrifuge and lateral evacuation
US7718019B2 (en) 2005-04-27 2010-05-18 United States Gypsum Company Methods of and systems for preparing a heat resistant accelerant slurry and adding the accelerant slurry to a post-mixer aqueous dispersion of calcined gypsum
US20060244182A1 (en) * 2005-04-27 2006-11-02 United States Gypsum Company Methods of and systems for preparing a heat resistant accelerant slurry and adding the accelerant slurry to a post-mixer aqueous dispersion of calcined gypsum
US8444787B2 (en) 2005-04-27 2013-05-21 United States Gypsum Company Methods of and systems for adding a high viscosity gypsum additive to a post-mixer aqueous dispersion of calcined gypsum
US20060243171A1 (en) * 2005-04-27 2006-11-02 United States Gypsum Company Wet gypsum accelerator and methods, composition, and product relating thereto
US8016960B2 (en) 2005-04-27 2011-09-13 United States Gypsum Company Methods of and systems for adding a high viscosity gypsum additive to a post-mixer aqueous dispersion of calcined gypsum
US20060244183A1 (en) * 2005-04-27 2006-11-02 United States Gypsum Company Methods of and systems for adding a high viscosity gypsum additive to a post-mixer aqueous dispersion of calcined gypsum
US7500778B2 (en) * 2005-09-19 2009-03-10 Carl Brazelton Polymer mixing apparatus
US20070064524A1 (en) * 2005-09-19 2007-03-22 Carl Brazelton Polymer mixing apparatus
RU2299091C1 (en) * 2005-11-16 2007-05-20 Институт проблем химико-энергетических технологий СО РАН Rotary-pulsating apparatus for predominantly production of the "liquid-liquid" systems"
US20090323458A1 (en) * 2006-04-11 2009-12-31 Wolfgang Fischer Continuous process for performing a chemical reaction in which a gaseous phase is added to a charge system comprising one or more solid phases which have been dissolved or dispersed in water
US20080080304A1 (en) * 2006-09-28 2008-04-03 Nof Corporation Agitation method, agitation mixer, and feed pipe structure
US7993052B2 (en) * 2006-09-28 2011-08-09 Nof Corporation Agitation mixer and feed pipe structure
RU2412751C2 (en) * 2008-07-17 2011-02-27 Государственное образовательное учреждение высшего профессионального образования Белгородский государственный технологический университет им. В.Г. Шухова (БГТУ им. В.Г. Шухова) Installation for mechanical activation of suspensions containing fibrous materials
RU2429066C1 (en) * 2009-12-14 2011-09-20 Государственное образовательное учреждение высшего профессионального образования "Тамбовский государственный технический университет" (ГОУ ВПО ТГТУ) Apparatus for physico-chemical treatment of liquid medium
EP3140625B1 (en) * 2014-05-08 2023-08-30 Zuidema, Casper Johan Mixing device
RU2591974C1 (en) * 2015-02-12 2016-07-20 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Кемеровский технологический институт пищевой промышленности" Rotor-pulsation apparatus
US10596531B1 (en) * 2016-04-21 2020-03-24 Michael A. Ellis Modular continuous adhesive foam mixer
RU2625984C1 (en) * 2016-10-26 2017-07-20 Федеральное государственное бюджетное образовательное учреждение высшего образования "Комсомольский-на-Амуре государственный технический университет" (ФГБОУ ВО "КнАГТУ") Rotor-pulse apparatus
RU2636486C1 (en) * 2016-12-20 2017-11-23 Федеральное государственное бюджетное образовательное учреждение высшего образования "Тихоокеанский государственный университет" Rotary pulsating machine
RU2639799C1 (en) * 2017-04-05 2017-12-22 Федеральное государственное бюджетное образовательное учреждение высшего образования "Тихоокеанский государственный университет" Rotory pulse apparatus
RU2695193C1 (en) * 2018-10-03 2019-07-22 Федеральное государственное бюджетное образовательное учреждение высшего образования "Санкт-Петербургский государственный технологический институт (технический университет)" Rotary pulse apparatus and method of its operation
US11344854B2 (en) 2020-03-12 2022-05-31 Knauf Gips Kg Mixer rotor pin with hole
RU2792356C1 (en) * 2022-11-11 2023-03-21 Федеральное государственное бюджетное учреждение науки Институт проблем химико-энергетических технологий Сибирского отделения Российской академии наук (ИПХЭТ СО РАН) Rotor-pulsation apparatus for dispersion, mostly in "liquid-solid" systems

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