GB1161079A - Screening Apparatus for Screening Fibrous Material in Liquid Suspension. - Google Patents

Screening Apparatus for Screening Fibrous Material in Liquid Suspension.

Info

Publication number
GB1161079A
GB1161079A GB55036/66A GB5503666A GB1161079A GB 1161079 A GB1161079 A GB 1161079A GB 55036/66 A GB55036/66 A GB 55036/66A GB 5503666 A GB5503666 A GB 5503666A GB 1161079 A GB1161079 A GB 1161079A
Authority
GB
United Kingdom
Prior art keywords
screen
foils
housing
screening
collected
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
GB55036/66A
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.)
Beloit Corp
Original Assignee
Beloit Corp
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 Beloit Corp filed Critical Beloit Corp
Publication of GB1161079A publication Critical patent/GB1161079A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
    • D21D5/00—Purification of the pulp suspension by mechanical means; Apparatus therefor
    • D21D5/02—Straining or screening the pulp
    • D21D5/06—Rotary screen-drums
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B01D29/13—Supported filter elements
    • B01D29/15—Supported filter elements arranged for inward flow filtration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B01D29/13—Supported filter elements
    • B01D29/23—Supported filter elements arranged for outward flow filtration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
    • B01D29/52—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in parallel connection
    • B01D29/54—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in parallel connection arranged concentrically or coaxially
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/76—Handling the filter cake in the filter for purposes other than for regenerating
    • B01D29/86—Retarding cake deposition on the filter during the filtration period, e.g. using stirrers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/88—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
    • B01D29/90—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for feeding
    • B01D29/908—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for feeding provoking a tangential stream
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/88—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
    • B01D29/94—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for discharging the filter cake, e.g. chutes
    • B01D29/945—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for discharging the filter cake, e.g. chutes for continuously discharging concentrated liquid

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)
  • Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)

Abstract

1,161,079. Filter. BELOIT CORP. 8 Dec., 1966 [24 Jan., 1966], No. 55036/66. Heading B1D. A screening apparatus comprises a housing having an inlet 14 and outlets 27, 29, 31, 34, a cylindrical screen comprising inner and outer screen members 16 and 18 spaced to form a chamber between them, an involute shaped channel 17 having a portion extending outwardly from the housing to form the outlet 27, first and second foil 35 and 37 means concentrically rotatably carried within the housing adjacent to the inner and onto screen members 'for preventing clogging of the screen members, and drive means for rotatably driving the first and second foils within the housing. Thus foils 35 and 37 at no time pass over the inlet 14, or outlets 27, 29, 31 and 34. In use for screening paper making stock to obtain a material of desired consistency, stock enters at 14, some undesired constituent is separated by centrifugal force and is collected at 29, some is separated by gravity and is collected at 31 and 34. Stock overflows the top 20 of the cylindrical screen, is filtered through screens 16 and 18, collects in involute shaped chamber 17 and leaves at 27. Foils 35 and 37 are rotated to clean the surfaces of screens 16 and 18, and the material thus removed is collected at 31 and 34. Water dilution means (95, Fig. 2) may introduce water into chamber 15 in a direction substantially tangential to the direction of foils 35 and 37. The apertures in screen 16 may be different in size from the apertures in screen 18.
GB55036/66A 1966-01-24 1966-12-08 Screening Apparatus for Screening Fibrous Material in Liquid Suspension. Expired GB1161079A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US522638A US3387708A (en) 1966-01-24 1966-01-24 Paper machine screen

Publications (1)

Publication Number Publication Date
GB1161079A true GB1161079A (en) 1969-08-13

Family

ID=24081687

Family Applications (1)

Application Number Title Priority Date Filing Date
GB55036/66A Expired GB1161079A (en) 1966-01-24 1966-12-08 Screening Apparatus for Screening Fibrous Material in Liquid Suspension.

Country Status (5)

Country Link
US (1) US3387708A (en)
DE (1) DE1257546B (en)
ES (1) ES335032A1 (en)
FR (1) FR1508609A (en)
GB (1) GB1161079A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2161091A (en) * 1984-07-06 1986-01-08 Voith Gmbh J M Process for the preparation of waste paper

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3456793A (en) * 1966-01-24 1969-07-22 Beloit Corp Dual pressure stock screen
US3471022A (en) * 1967-07-19 1969-10-07 Robert Conrad Swimming pool filter
FR2002382A1 (en) * 1968-02-22 1969-10-17 Voith
US3499528A (en) * 1968-05-21 1970-03-10 Beloit Corp Pressurized knotter screen
US3672506A (en) * 1970-05-06 1972-06-27 Jylhavaara Osakeyhtio Pressure strainer device
DE2140904C3 (en) * 1971-08-16 1974-05-09 Hermann Finckh, Metalltuch- Und Maschinenfabrik, 7410 Reutlingen Pressure sorter for pulp suspensions
DE2526657C3 (en) * 1975-06-14 1978-10-26 Hermann Finckh, Maschinenfabrik, 7417 Pfullingen Pressure sifter for fiber suspensions
US4126513A (en) * 1977-06-30 1978-11-21 Beloit Corporation Air dome attenuator
US4324820A (en) * 1980-07-18 1982-04-13 St. Regis Paper Company Method and apparatus for coating a paper web
EP0253006B1 (en) * 1986-07-15 1989-05-31 Hermann Finckh Maschinenfabrik GmbH & Co. Pressure separator
US4971694A (en) * 1989-01-05 1990-11-20 Kamyr Ab Double diffuser with backflush pistons
US5954956A (en) * 1997-07-22 1999-09-21 J&L Fiber Services Modular screen cylinder and a method for its manufacture
US6138838A (en) 1998-05-29 2000-10-31 J&L Fiber Services, Inc. Screen media and a screening passage therefore
SE537379C2 (en) * 2012-11-28 2015-04-14 Valmet Oy Screening device, rotor, pulse element package and production method

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1647799A (en) * 1926-03-05 1927-11-01 Forrester L Hammer Strainer
US2276118A (en) * 1939-05-10 1942-03-10 Peninsular Lurton Company Filter apparatus
US3029951A (en) * 1958-09-24 1962-04-17 Bird Machine Co Screening device
SE308445B (en) * 1961-02-09 1969-02-10 N Nilsson
US3159572A (en) * 1961-05-24 1964-12-01 Ranhagen Ernst Gustaf Rane Means for the straining, fractionation and concentration of solids, e. g., cellulosefibres, suspended in a liquid
US3174522A (en) * 1961-08-21 1965-03-23 Larentis Albano Nut locking device
US3223239A (en) * 1962-05-11 1965-12-14 Bird Machine Co Pressure type screening devices
US3149067A (en) * 1962-08-23 1964-09-15 Bird Machine Co Screening device
DE1250726B (en) * 1963-05-17 1967-09-21 Canadian Ingersoll-Rand Company Limited, Montreal, Quebec (Kana da), Bird Machine Company, South Walpole, Mass (V St A) Cleaning device for drum screens
US3211292A (en) * 1963-10-21 1965-10-12 Michigan Dynamics Inc Strainer with concentric filter elements

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2161091A (en) * 1984-07-06 1986-01-08 Voith Gmbh J M Process for the preparation of waste paper

Also Published As

Publication number Publication date
FR1508609A (en) 1968-01-05
US3387708A (en) 1968-06-11
ES335032A1 (en) 1967-11-16
DE1257546B (en) 1967-12-28

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees