GB1492209A - Separators for stock suspensions - Google Patents

Separators for stock suspensions

Info

Publication number
GB1492209A
GB1492209A GB49667/75A GB4966775A GB1492209A GB 1492209 A GB1492209 A GB 1492209A GB 49667/75 A GB49667/75 A GB 49667/75A GB 4966775 A GB4966775 A GB 4966775A GB 1492209 A GB1492209 A GB 1492209A
Authority
GB
United Kingdom
Prior art keywords
outlet
pulp
inlet
dec
paper
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
GB49667/75A
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.)
Sulzer Escher Wyss GmbH
Original Assignee
Escher Wyss GmbH
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 Escher Wyss GmbH filed Critical Escher Wyss GmbH
Publication of GB1492209A publication Critical patent/GB1492209A/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
    • D21D5/023—Stationary screen-drums
    • D21D5/026—Stationary screen-drums with rotating cleaning foils
    • 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
    • B01D29/117—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 arranged for outward flow filtration
    • B01D29/118—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 arranged for outward flow filtration open-ended
    • 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
    • B01D29/62—Regenerating the filter material in the filter
    • B01D29/70—Regenerating the filter material in the filter by forces created by movement of the filter element
    • B01D29/72—Regenerating the filter material in the filter by forces created by movement of the filter element involving vibrations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B7/00—Combinations of wet processes or apparatus with other processes or apparatus, e.g. for dressing ores or garbage
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/28—Position of the filtering element
    • B01D2201/287—Filtering elements with a vertical or inclined rotation or symmetry axis

Landscapes

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

Abstract

1492209 Screening machine for paper pulp ESCHER WYSS GmbH 3 Dec 1975 [3 Dec 1974] 49667/75 Heading B1D A paper pulp-screening machine comprises a housing with an inlet 3 and respective outlets 11 and 9 for fractions which respectively pass through and are retained by cylindrical screen 2, rotary screen-cleaning vanes 6 and a system for maintaining an air space 12 above the pulp level E, which damps out pressure fluctuations which might otherwise interfere with a paper-making machine downstream of outlet 11. As shown level E is maintained by air inlet 13 and air outlet valve 15 opened and closed in response to variations in the difference between signals from pressure sensors 17 and 18. Valve 22 controls inflow of pulp in response to pressure fluctuations in outlet 11. In Fig. 2 (not shown) inlet 3 and outlet 11 are coaxially arranged and controls (not shown) are as in Fig. 1.
GB49667/75A 1974-12-03 1975-12-03 Separators for stock suspensions Expired GB1492209A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1600074A CH586074A5 (en) 1974-12-03 1974-12-03

Publications (1)

Publication Number Publication Date
GB1492209A true GB1492209A (en) 1977-11-16

Family

ID=4413697

Family Applications (1)

Application Number Title Priority Date Filing Date
GB49667/75A Expired GB1492209A (en) 1974-12-03 1975-12-03 Separators for stock suspensions

Country Status (5)

Country Link
AT (1) AT336393B (en)
CA (1) CA1067417A (en)
CH (1) CH586074A5 (en)
FI (1) FI753214A (en)
GB (1) GB1492209A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2170421A (en) * 1985-01-31 1986-08-06 Voith Gmbh J M Paper pulp suspension screen
EP0203295A1 (en) * 1985-05-30 1986-12-03 J.M. Voith GmbH Screening apparatus

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19805448C2 (en) * 1998-02-11 2000-04-13 Voith Sulzer Papiertech Patent Method and device for cleaning and feeding a paper stock suspension into the headbox of a paper machine
DE102016107256B4 (en) * 2016-04-19 2023-08-24 Pallmann Maschinenfabrik Gmbh & Co. Kg Device and method for separating feed material into fines and coarse material

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2170421A (en) * 1985-01-31 1986-08-06 Voith Gmbh J M Paper pulp suspension screen
US4684444A (en) * 1985-01-31 1987-08-04 J.M. Voith Gmbh Sorter for paper pulp suspensions including a damping chamber
EP0203295A1 (en) * 1985-05-30 1986-12-03 J.M. Voith GmbH Screening apparatus
US4710287A (en) * 1985-05-30 1987-12-01 J. M. Voith Gmbh Fibrous suspension pressurized sorter

Also Published As

Publication number Publication date
DE2459587A1 (en) 1975-10-30
AT336393B (en) 1977-05-10
CH586074A5 (en) 1977-03-31
FI753214A (en) 1976-06-04
CA1067417A (en) 1979-12-04
ATA978374A (en) 1976-08-15
DE2459587B1 (en) 1975-10-30

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee