GB1283053A - Apparatus for centrifugally removing liquid from a mixture - Google Patents

Apparatus for centrifugally removing liquid from a mixture

Info

Publication number
GB1283053A
GB1283053A GB4057/72A GB405772A GB1283053A GB 1283053 A GB1283053 A GB 1283053A GB 4057/72 A GB4057/72 A GB 4057/72A GB 405772 A GB405772 A GB 405772A GB 1283053 A GB1283053 A GB 1283053A
Authority
GB
United Kingdom
Prior art keywords
screen
flights
scroll
rotating
apertures
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
GB4057/72A
Inventor
Peter C Wilson
Robert P Hughart
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB1283053A publication Critical patent/GB1283053A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/18—De-watering; Elimination of cooking or pulp-treating liquors from the pulp
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B3/00—Centrifuges with rotary bowls in which solid particles or bodies become separated by centrifugal force and simultaneous sifting or filtering
    • B04B3/04—Centrifuges with rotary bowls in which solid particles or bodies become separated by centrifugal force and simultaneous sifting or filtering discharging solid particles from the bowl by a conveying screw coaxial with the bowl axis and rotating relatively to the bowl
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B1/00—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles
    • B04B1/20—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles discharging solid particles from the bowl by a conveying screw coaxial with the bowl axis and rotating relatively to the bowl
    • B04B2001/205—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles discharging solid particles from the bowl by a conveying screw coaxial with the bowl axis and rotating relatively to the bowl with special construction of screw thread, e.g. segments, height

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Centrifugal Separators (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)

Abstract

1283053 Centrifugal strainer P C WILSON and R P HUGHART 4 Aug 1969 [12 Aug 1968] 4057/72 Divided out of 1283052 Heading B1D A centrifugal strainer for cellulose pulp comprises a rotating perforate screen 22 along which pulp is moved by an internal, differentially rotating scroll 24 carrying helical flights, the screen holes being circular, between 0.3 and 3mm wide and forming at least 10% of the screen area, and the longitudinal axes of the flights being inclined at not more than 65 degrees to the transverse plane of the strainer. The flights may be made of or covered with elastomeric materials (exemplified) (Figs. 6 to 9, not shown) and extra flights may be provided at the inlet end of the screen. The spacing of flights from the screen and from other flights is exemplified. The scroll has apertures 178 through which wash liquid or drying gas may be fed to the pulp, the gas being withdrawn by a vacuum pump connected to the housing at 48. Screen 22 is supported by wire mesh and an outer basket (Fig. 2, not shown). The rotating screen is surrounded by a fixed screen 23 with smaller apertures, which may be woven wire or cloth or have outwardly diverging conical apertures. The inner and outer screens are shown as cylindrical, but frusto-conical and compound forms are illustrated. The elastomeric covering on the scroll flights is replaceable when worn and may be ground to match the frusto-conical rotary screen by axially adjusting the scroll until the flights engage the screen and then rotating the scroll and screen differentially.
GB4057/72A 1968-08-12 1969-08-04 Apparatus for centrifugally removing liquid from a mixture Expired GB1283053A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US75202268A 1968-08-12 1968-08-12
US00173657A US3814246A (en) 1968-08-12 1971-08-20 Method for centrifugally removing liquid from a mixture

Publications (1)

Publication Number Publication Date
GB1283053A true GB1283053A (en) 1972-07-26

Family

ID=26869400

Family Applications (2)

Application Number Title Priority Date Filing Date
GB38904/69A Expired GB1283052A (en) 1968-08-12 1969-08-04 Method for centrifugally removing liquid from a mixture
GB4057/72A Expired GB1283053A (en) 1968-08-12 1969-08-04 Apparatus for centrifugally removing liquid from a mixture

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB38904/69A Expired GB1283052A (en) 1968-08-12 1969-08-04 Method for centrifugally removing liquid from a mixture

Country Status (5)

Country Link
US (2) US3642139A (en)
DE (1) DE1941015A1 (en)
FR (1) FR2015533A1 (en)
GB (2) GB1283052A (en)
SE (1) SE358428B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2189162A (en) * 1986-04-16 1987-10-21 Andritz Ag Maschf A process and a device for removing foreign solids from pulpers
US4894147A (en) * 1988-03-07 1990-01-16 Oy Tampella Ab Device for screening pulp and a blade for the screening device
GB2222967A (en) * 1988-09-19 1990-03-28 Voith Gmbh J M Appliance for screening fibrous suspensions

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2260461C3 (en) * 1972-12-11 1980-06-04 Krauss-Maffei Ag, 8000 Muenchen Filter centrifuge
US4287708A (en) * 1979-08-13 1981-09-08 Neely Jr Allen B Alfalfa harvesting and processing apparatus
DE3139345C2 (en) * 1981-10-02 1983-10-13 Werner Prof. Dr. 6740 Landau Stahl Solid bowl screw centrifuge
US4451371A (en) * 1983-01-10 1984-05-29 Peck William H Apparatus for separating liquid from a slurry
DE3328303C1 (en) * 1983-08-05 1984-11-22 Werner & Pfleiderer, 7000 Stuttgart Device for dewatering and drying plastic granules
DE3343937A1 (en) * 1983-12-05 1985-06-13 Krauss-Maffei AG, 8000 München DEFAULT CHAMBER FOR A VERTICAL CENTRIFUGE
GB8620436D0 (en) * 1986-08-22 1986-10-01 Mozley R H Centrifugal solids-liquids separator
JPH089838B2 (en) * 1987-07-08 1996-01-31 エイ．アフルストロム コ−ポレ−ション Method and device for thickening fiber suspensions
US5156750A (en) * 1987-07-08 1992-10-20 A. Ahlstrom Corporation Method and apparatus for thickening a fiber suspension and removing fine particles therefrom
US4871569A (en) * 1988-05-17 1989-10-03 The Procter & Gamble Company Dual-stream juice processing for recovering juice solids from extractor core material
FI83841C (en) * 1989-04-07 1991-09-10 Salomans Oy Process for continuous exchange of the liquid in a suspension of a fibrous or fine-grained material
US5013460A (en) * 1989-11-13 1991-05-07 Kamyr, Inc. Centrifugal washer for paper pulp with means to feed pulp as a thin sheet
US5183568A (en) * 1991-08-22 1993-02-02 G A Industries, Inc. Self-cleaning strainer
DE19852119C1 (en) * 1998-11-12 2000-07-27 Martin Systems Ag Device for separating dirty water
WO2002089993A1 (en) * 2001-05-10 2002-11-14 Tech-O-Filtre Inc. Centrifugal filter
SE525785C2 (en) * 2003-09-24 2005-04-26 Metso Paper Inc Thickener for concentrating fiber suspensions
TW200736458A (en) * 2006-03-24 2007-10-01 Slit And Hole Industry Co Ltd A sieve (screen) can prevent sieve bars from falling off
US7909173B2 (en) * 2007-10-30 2011-03-22 Boris Elyevich Zhornitskiy Combined centrifugal separator
DE102009012100A1 (en) * 2009-02-26 2010-09-30 Index-Werke Gmbh & Co. Kg Hahn & Tessky purifier
FI127682B (en) * 2013-01-04 2018-12-14 Stora Enso Oyj A method of producing microfibrillated cellulose
JP6065864B2 (en) * 2014-03-20 2017-01-25 セイコーエプソン株式会社 Sheet manufacturing apparatus and sheet manufacturing method
DE102017103069B4 (en) * 2017-02-15 2023-03-23 Flottweg Se Solid bowl centrifuge screw
CN113441292B (en) * 2021-08-31 2021-11-12 江苏惠博机电科技股份有限公司 Adjustable solid separation equipment and separation method

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US925856A (en) * 1908-06-16 1909-06-22 Richardson Timothy Wilder Filtering-machine.
US1187584A (en) * 1915-06-12 1916-06-20 Carl A Wendell Drier.
US1634868A (en) * 1922-02-18 1927-07-05 Guy H Elmore Centrifugal drier
US1586395A (en) * 1922-07-24 1926-05-25 Hans C Behr Apparatus for separating liquids from solids
US2370353A (en) * 1940-09-19 1945-02-27 Andrew F Howe Centrifugal separator or clarifier
US2855099A (en) * 1951-12-01 1958-10-07 Stamicarbon Apparatus for wet screening
DE1066500B (en) * 1954-08-11 1959-10-01 Les Constructions Guinard, Courbevoie (Frankreich) Washing device for screw screen centrifuges
US2987191A (en) * 1957-03-28 1961-06-06 Gen Engineering Company Ab Strainer or filter drums
US2999785A (en) * 1959-07-17 1961-09-12 Kamyr Ab Method and plant for washing of cellulosic pulp under overpressure
US3199681A (en) * 1961-08-02 1965-08-10 Pennsalt Chemicals Corp Centrifuge
FR1382973A (en) * 1963-09-13 1964-12-24 Const Guinard Sa Advanced wringer
US3348767A (en) * 1965-04-19 1967-10-24 Bird Machine Co Centrifugal separator
US3456793A (en) * 1966-01-24 1969-07-22 Beloit Corp Dual pressure stock screen
US3411631A (en) * 1966-09-09 1968-11-19 Dorr Oliver Inc Screening centrifuges

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2189162A (en) * 1986-04-16 1987-10-21 Andritz Ag Maschf A process and a device for removing foreign solids from pulpers
GB2189162B (en) * 1986-04-16 1990-07-25 Andritz Ag Maschf Preparing a suspension of waste paper and separating foreign solids therefrom
US4894147A (en) * 1988-03-07 1990-01-16 Oy Tampella Ab Device for screening pulp and a blade for the screening device
GB2222967A (en) * 1988-09-19 1990-03-28 Voith Gmbh J M Appliance for screening fibrous suspensions
GB2222967B (en) * 1988-09-19 1993-01-27 Voith Gmbh J M A screening machine for fibrous suspensions

Also Published As

Publication number Publication date
GB1283052A (en) 1972-07-26
DE1941015A1 (en) 1970-02-19
US3814246A (en) 1974-06-04
US3642139A (en) 1972-02-15
FR2015533A1 (en) 1970-04-30
SE358428B (en) 1973-07-30

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee