GB813856A - Improvements in or relating to a method of and means for defoaming liquids - Google Patents

Improvements in or relating to a method of and means for defoaming liquids

Info

Publication number
GB813856A
GB813856A GB23645/56A GB2364556A GB813856A GB 813856 A GB813856 A GB 813856A GB 23645/56 A GB23645/56 A GB 23645/56A GB 2364556 A GB2364556 A GB 2364556A GB 813856 A GB813856 A GB 813856A
Authority
GB
United Kingdom
Prior art keywords
blades
vessel
vacuum
liquid
pipe
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
Application number
GB23645/56A
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.)
Warren SD Co
Original Assignee
Warren SD 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 Warren SD Co filed Critical Warren SD Co
Publication of GB813856A publication Critical patent/GB813856A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D19/00—Degasification of liquids
    • B01D19/02—Foam dispersion or prevention
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • B01F27/90—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with paddles or arms 
    • B01F27/902—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with paddles or arms  cooperating with intermeshing elements fixed on the receptacle walls

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Degasification And Air Bubble Elimination (AREA)
  • Coating Apparatus (AREA)

Abstract

A process for de-foaming liquids, e.g. coating compositions for paper, consists in submitting the liquid while under a vacuum to mechanical shearing action between relatively moving surfaces. A cylindrical tank 1, Fig. 1, provided with a valved inlet pipe 4 and vacuum line 5, has stationary blades 18 mounted on the inner wall. A central rotating shaft 6 is also provided with blades 19, which pass between and close to the fixed blades. The distance between adjacent horizontal edges of fixed and moving blades is 0.1 to 0.5 inch. The two sets of blades are preferably mounted tangential to the central shaft. In operation, the liquid entering through pipe 4 falls on a splash plate 9, and fills the vessel to a level a little below the top rotor blades, determined by a constant level feed control. A vacuum of 26 to 28 inches of mercury is maintained, and the liquid flows through the vessel at the rate of about 15 to 35 gallons per minute. The central blades rotate at about 120 to 150 revolutions per minute. Foam bubbles expand under the low pressure and are broken by the <PICT:0813856/III/1> shearing action of the blades. The de-foamed liquid passes to the cone-shaped base 10 of the vessel provided with a pair of blades 21, which are mounted close to the vessel wall and are inclined to sweep any solid materials downwards to a vertical screw conveyer 20. The bubble-free product is drawn off through a pipe 15 by a pump 16.
GB23645/56A 1955-08-15 1956-07-31 Improvements in or relating to a method of and means for defoaming liquids Expired GB813856A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US528377A US2908652A (en) 1955-08-15 1955-08-15 Process and apparatus for defoaming liquids

Publications (1)

Publication Number Publication Date
GB813856A true GB813856A (en) 1959-05-27

Family

ID=24105441

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23645/56A Expired GB813856A (en) 1955-08-15 1956-07-31 Improvements in or relating to a method of and means for defoaming liquids

Country Status (3)

Country Link
US (1) US2908652A (en)
DE (1) DE1178041B (en)
GB (1) GB813856A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0614812A1 (en) * 1993-03-12 1994-09-14 Dow Corning Corporation Nozzle mixer assembly
CN114712898A (en) * 2022-04-11 2022-07-08 湖南继兴科技有限公司 Defoaming device for producing single-component epoxy resin adhesive

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1017418A (en) * 1962-03-15 1966-01-19 Kurashiki Rayon Kk A method for continuous deaeration of a concentrated aqueous solution the solute of which consists solely or mainly of polyvinyl alcohol
US3356348A (en) * 1965-12-29 1967-12-05 Mixing Equipment Co Inc Breaking foam
US3676983A (en) * 1970-07-29 1972-07-18 Walter E Nold Apparatus and method for degassing a liquid
IT1087760B (en) * 1976-10-11 1985-06-04 Process Engineering Co DEVICE FOR CONTINUOUSLY SEPARATING FOAMS IN THEIR LIQUID AND GASEOUS COMPONENTS
US4416672A (en) * 1980-07-18 1983-11-22 Underwood Gene E Degasser
US4326863A (en) * 1980-07-21 1982-04-27 Geosource Inc. Centrifugal degasser
US5258057A (en) * 1990-07-02 1993-11-02 Bruker-Franzen Analytik Gmbh Method and apparatus for extracting dissolved, volatile substances from liquids into the vapor phase
US5591252A (en) * 1991-07-19 1997-01-07 Wilhelm Hedrich Vakuumanlagen Gmbh & Co. Kg Device and method for the continuous degassing of casting resin
DE4222695C2 (en) * 1991-07-19 2003-01-30 Hedrich Vakuumanlagen Wilhelm Process and device for the continuous degassing of cast resin
US5332423A (en) * 1992-08-12 1994-07-26 Gisko Jerry A Vertical continuous degassing apparatus
US5792246A (en) * 1995-06-30 1998-08-11 Sumitomo Bakelite Company Limited Defoaming apparatus
DE19625208A1 (en) * 1996-06-25 1998-01-02 Micafil Vakuumtechnik Ag Device for mixing and degassing a flowable mass
US6024780A (en) * 1998-05-19 2000-02-15 Haselden, Jr.; Odell Kent Method and apparatus for degassing a fluid in a reusable vaccum chamber with microprocessor based controls
DE19919521A1 (en) * 1999-04-29 2000-11-02 Micafil Ag Zuerich Device for mixing and degassing a flowable mass
EP1350887B1 (en) * 2002-03-30 2007-05-16 Voith Patent GmbH Device for separating air from flotation foam
JP5068163B2 (en) * 2004-09-15 2012-11-07 株式会社クレハ Solid-liquid contact apparatus and method
DE102006041413A1 (en) * 2006-09-04 2008-03-06 Voith Patent Gmbh degassing
US8672029B2 (en) * 2009-12-30 2014-03-18 Schlumberger Technology Corporation System for reducing foam in mixing operations
US20110274795A1 (en) * 2010-05-05 2011-11-10 Monosol Rx, Llc In-line deaeration process for the production of self-supporting film products
CN101947394A (en) * 2010-09-07 2011-01-19 苏州世名科技股份有限公司 Multifunctional vacuum bubble remover
CN102179110A (en) * 2011-03-16 2011-09-14 江苏纵横浓缩干燥设备有限公司 Efficient defoaming device for vapor-liquid separator
HUE027267T2 (en) * 2011-05-10 2016-10-28 Etablissements Magyar Cistern for collecting a liquid
CN102294202B (en) * 2011-07-14 2013-12-18 广东红墙新材料股份有限公司 Naphthalene melting box
CN105289360B (en) * 2015-11-18 2017-06-16 江苏城东建设工程有限公司 A kind of circulating dual device for dispersing paint
CN107899457A (en) * 2017-11-28 2018-04-13 锦乔生物科技有限公司 Folliculus device and its application method are defoamed in a kind of mixing plant
WO2020041198A1 (en) * 2018-08-24 2020-02-27 Fluid Technology Solutions (Fts), Inc. Methods for air flotation removal of highly fouling compounds from biodigester or animal waste
CN109464954A (en) * 2018-11-23 2019-03-15 太原理工大学 The strong mixing flow field dispersal device of Magnetorheologicai polishing liquid and method
CN109529661A (en) * 2018-11-25 2019-03-29 泰州市华诚钨钼制品有限公司 A kind of vacuum defoaming glue mixed stirring device
CN115400621B (en) * 2022-08-20 2024-05-28 徐州华东纺织浆料有限公司 Textile size preparation equipment

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1520375A (en) * 1920-06-16 1924-12-23 Frank M Ashley Mixing and beating machine
US1704728A (en) * 1928-02-21 1929-03-12 Cew Judson A De Paper-making method and apparatus
DE736607C (en) * 1936-06-13 1943-06-23 Holstein & Kappert Maschf Device for filling liquids under counter pressure with exclusion of air
GB533065A (en) * 1939-10-05 1941-02-05 Permutit Co Improvements in devices for agitating liquids
DE736501C (en) * 1940-05-15 1943-06-19 Foam destroyer, especially for fermenting liquids
US2367149A (en) * 1940-08-27 1945-01-09 Gulf Oil Corp Grease manufacturing apparatus
NL142820C (en) * 1940-08-27
US2626786A (en) * 1947-05-05 1953-01-27 Leonard D Mcglothlin Automatic consistency control means
DE1004910B (en) * 1954-06-24 1957-03-21 Escher Wyss Gmbh Device for venting fiber suspensions for the wood pulp, pulp, paper industry u. like
FR1177418A (en) * 1957-06-21 1959-04-24 Land disintegrator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0614812A1 (en) * 1993-03-12 1994-09-14 Dow Corning Corporation Nozzle mixer assembly
AU665300B2 (en) * 1993-03-12 1995-12-21 Dow Corning Corporation Nozzle mixer assembly
CN114712898A (en) * 2022-04-11 2022-07-08 湖南继兴科技有限公司 Defoaming device for producing single-component epoxy resin adhesive

Also Published As

Publication number Publication date
DE1178041B (en) 1964-09-17
US2908652A (en) 1959-10-13

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