EP0305707A3 - Mixer for making mortar consisting of granular binding agents, in particular plaster - Google Patents

Mixer for making mortar consisting of granular binding agents, in particular plaster Download PDF

Info

Publication number
EP0305707A3
EP0305707A3 EP19880111388 EP88111388A EP0305707A3 EP 0305707 A3 EP0305707 A3 EP 0305707A3 EP 19880111388 EP19880111388 EP 19880111388 EP 88111388 A EP88111388 A EP 88111388A EP 0305707 A3 EP0305707 A3 EP 0305707A3
Authority
EP
European Patent Office
Prior art keywords
rotor disc
plaster
water
mixer
binding agents
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.)
Granted
Application number
EP19880111388
Other languages
German (de)
Other versions
EP0305707A2 (en
EP0305707B1 (en
Inventor
Kurt Eberhardt
Reinhold Nibbrig
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.)
Grenzebach BSH GmbH
Grenzebach GmbH and Co KG
Original Assignee
Babcock BSH AG
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
Priority claimed from DE8711865U external-priority patent/DE8711865U1/de
Priority claimed from DE3729233A external-priority patent/DE3729233C1/en
Application filed by Babcock BSH AG filed Critical Babcock BSH AG
Priority to AT88111388T priority Critical patent/ATE68398T1/en
Publication of EP0305707A2 publication Critical patent/EP0305707A2/en
Publication of EP0305707A3 publication Critical patent/EP0305707A3/en
Application granted granted Critical
Publication of EP0305707B1 publication Critical patent/EP0305707B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • B28C5/08—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
    • B28C5/16—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 the stirrers having motion about a vertical or steeply inclined axis
    • B28C5/166—Pan-type mixers
    • 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
    • B01F25/70—Spray-mixers, e.g. for mixing intersecting sheets of material
    • B01F25/74—Spray-mixers, e.g. for mixing intersecting sheets of material with rotating parts, e.g. discs
    • B01F25/743—Spray-mixers, e.g. for mixing intersecting sheets of material with rotating parts, e.g. discs the material being fed on both sides of a part rotating about a vertical axis
    • 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
    • B01F25/80—Falling particle mixers, e.g. with repeated agitation along a vertical axis
    • B01F25/85—Falling particle mixers, e.g. with repeated agitation along a vertical axis wherein the particles fall onto a film that flows along the inner wall of a mixer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • B01F27/93—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with rotary discs
    • 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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

Conventional plaster mixers, in which the mixing is carried out by a rotor disc having pins, require a high level of maintenance. Dihydrate particles, and possibly chips and fibres, accumulate in the blind areas downstream of the pins on the rotor disc, and under the rotor disc, resulting in blocking of the rotor disc and impairing the quality of the plaster boards. The invention is intended to reduce the level of maintenance. <??>Some of the mixing water flows outwards, from a meterable water feed (15) between the housing bottom (13) and the rotor disc (3), through an annular constriction (17), so that the rotor disc (3) is floatingly mounted. A continuous film of water, on which the plaster powder falls, is produced on the smooth rotor disc (3) by means of water inlets (19) distributed in a ring in the housing lid (7). <IMAGE>
EP88111388A 1987-09-02 1988-07-15 Mixer for making mortar consisting of granular binding agents, in particular plaster Expired - Lifetime EP0305707B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88111388T ATE68398T1 (en) 1987-09-02 1988-07-15 MIXER FOR MAKING MORTAR FROM FINE GRAIN BINDERS, ESPECIALLY PLASTER.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE8711865U DE8711865U1 (en) 1987-09-02 1987-09-02
DE3729233A DE3729233C1 (en) 1987-09-02 1987-09-02 Continuous gypsum mixer
DE8711865U 1987-09-02
DE3729233 1987-09-02

Publications (3)

Publication Number Publication Date
EP0305707A2 EP0305707A2 (en) 1989-03-08
EP0305707A3 true EP0305707A3 (en) 1990-10-31
EP0305707B1 EP0305707B1 (en) 1991-10-16

Family

ID=25859288

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88111388A Expired - Lifetime EP0305707B1 (en) 1987-09-02 1988-07-15 Mixer for making mortar consisting of granular binding agents, in particular plaster

Country Status (6)

Country Link
US (1) US4995729A (en)
EP (1) EP0305707B1 (en)
AT (1) ATE68398T1 (en)
DE (1) DE3865603D1 (en)
ES (1) ES2026972T3 (en)
GR (1) GR3003341T3 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR960704621A (en) * 1993-10-01 1996-10-09 데이비드 이안 버칸 MATERIALS MIXER
US6059444A (en) * 1998-01-28 2000-05-09 United States Gypsum Company Apparatus for mixing calcined gypsum and its method of operation
DE19830665C2 (en) * 1998-07-09 2003-08-28 Grenzebach Bsh Gmbh Process for the production of porous pastes, in particular porous gypsum paste, and mixers
JP3273927B2 (en) 1999-03-19 2002-04-15 吉野石膏株式会社 Mixing stirrer
US6376558B1 (en) 2000-01-06 2002-04-23 Babcock-Bsh Gmbh Method of producing a porous paste, especially a porous plaster slurry, and a mixer for preparing such paste or slurry
US6494609B1 (en) * 2001-07-16 2002-12-17 United States Gypsum Company Slurry mixer outlet
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
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
US20060243171A1 (en) * 2005-04-27 2006-11-02 United States Gypsum Company Wet gypsum accelerator and methods, composition, and product relating thereto
US10537863B2 (en) 2015-12-31 2020-01-21 United States Gypsum Company Constrictor valve with webbing, cementitious slurry mixing and dispensing assembly, and method for making cementitious product
US20220184848A1 (en) * 2019-04-15 2022-06-16 Yoshino Gypsum Co., Ltd. Pretreatment mixing and stirring device, gypsum slurry manufacturing apparatus, building board manufacturing apparatus, pretreatment calcined gypsum manufacturing method, gypsum slurry manufacturing method, building board manufacturing method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1498761A (en) * 1965-10-25 1967-10-20 I C I Societa Agricola Ind Per Device for the bleaching of pulp of vegetable origin, by exclusively oxidizing action
FR2345205A1 (en) * 1976-03-25 1977-10-21 Escher Wyss Sa SAND AND RESIN MIXER
US4329066A (en) * 1980-09-22 1982-05-11 Nemo Ivarson Method and apparatus for continuously mixing a liquid and powder

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2425689A (en) * 1940-02-16 1947-08-12 Schwarz Engineering Company In Treatment of fruit and vegetable juices
US2573425A (en) * 1947-06-23 1951-10-30 Ethel K Haferkamp Seal for centrifugal machines
US2903970A (en) * 1955-03-24 1959-09-15 United Aircraft Corp Combination seal for a pump
US3018091A (en) * 1959-04-10 1962-01-23 Du Pont Precipitation apparatus
US3081069A (en) * 1959-09-14 1963-03-12 Et Oakes Corp Mixing apparatus
US3131641A (en) * 1962-08-17 1964-05-05 United Aircraft Corp Dynamic seal improvement
FR1601881A (en) * 1967-12-16 1970-09-21
US3774887A (en) * 1969-11-19 1973-11-27 Cincinnati Milacron Inc Apparatus for mixing coreactive liquids which forms polyurethanes
US3756570A (en) * 1971-09-29 1973-09-04 W Buhner Apparatus for continuous dispersion and homogenization of predominantly viscous substances
US4196910A (en) * 1977-05-19 1980-04-08 Ishikawajima-Harima Jukogyo Kabushiki Kaisha Shaft sealing device for turbocharger
US4176972A (en) * 1978-08-09 1979-12-04 National Gypsum Company Coaxial pump mixer
ATE10228T1 (en) * 1980-08-01 1984-11-15 Imperial Chemical Industries Plc GAS-LIQUID SPLASH ROTARY SEAL.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1498761A (en) * 1965-10-25 1967-10-20 I C I Societa Agricola Ind Per Device for the bleaching of pulp of vegetable origin, by exclusively oxidizing action
FR2345205A1 (en) * 1976-03-25 1977-10-21 Escher Wyss Sa SAND AND RESIN MIXER
US4329066A (en) * 1980-09-22 1982-05-11 Nemo Ivarson Method and apparatus for continuously mixing a liquid and powder

Also Published As

Publication number Publication date
DE3865603D1 (en) 1991-11-21
ES2026972T3 (en) 1992-05-16
GR3003341T3 (en) 1993-02-17
EP0305707A2 (en) 1989-03-08
EP0305707B1 (en) 1991-10-16
ATE68398T1 (en) 1991-11-15
US4995729A (en) 1991-02-26

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