GB643203A - Improvements in suction filters - Google Patents

Improvements in suction filters

Info

Publication number
GB643203A
GB643203A GB33522/45A GB3352245A GB643203A GB 643203 A GB643203 A GB 643203A GB 33522/45 A GB33522/45 A GB 33522/45A GB 3352245 A GB3352245 A GB 3352245A GB 643203 A GB643203 A GB 643203A
Authority
GB
United Kingdom
Prior art keywords
web
suction
drum
shield
flange
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
GB33522/45A
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
Priority to GB33522/45A priority Critical patent/GB643203A/en
Publication of GB643203A publication Critical patent/GB643203A/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
    • D21C9/02—Washing ; Displacing cooking or pulp-treating liquors contained in the pulp by fluids, e.g. wash water or other pulp-treating agents
    • D21C9/06—Washing ; Displacing cooking or pulp-treating liquors contained in the pulp by fluids, e.g. wash water or other pulp-treating agents in filters ; Washing of concentrated pulp, e.g. pulp mats, on filtering surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/06—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums
    • B01D33/073—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums arranged for inward flow filtration
    • B01D33/09—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums arranged for inward flow filtration with surface cells independently connected to pressure distributors

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)

Abstract

643,203. Suction filters. RICHTER, J. C. F. C. Dec. 11, 1945, No. 33522. [Class 46] A suction filter for extracting fibres in the form of a web of ma terial from a pulp mixture comprises a tank 1 in which rotates a partially immersed drurr comprising drum heads 4, 9, and a perforated sieve shell 3 on which the web is deposited and from whicl it is removed. e.g by a discharge roll 19, Fig. 3 that part of the shell lying in the removal zone be ing cut off from suction by engage ment with a sta tionary shield 18. The head 9 is provided with a central opening 29 mounted over a fixed cylindrical flange 10 projecting from the adjacent wall of the tank, the. joint being sealed by a stuffing box 11. The shield 18 is secured to the part of the flange 10 inside the drum by an arm 17. The flange 10 is closed by a wall 12 provided with a stuffing box 13 for the drum shaft 5 and an aperture 14 connected to suction for withdrawal of water. The web may be washed by sprays 26, 27, the washing water being discharged by hoppers 20, 21 to pipes 24, 25. In a modification the shell is carried on a drum frame having a series of longitudinal compartments around its circumference each provided with a water outlet hole at one end. A number of these holes are closed by the stationary shield at the web-removing zone.
GB33522/45A 1945-12-11 1945-12-11 Improvements in suction filters Expired GB643203A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB33522/45A GB643203A (en) 1945-12-11 1945-12-11 Improvements in suction filters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB33522/45A GB643203A (en) 1945-12-11 1945-12-11 Improvements in suction filters

Publications (1)

Publication Number Publication Date
GB643203A true GB643203A (en) 1950-09-15

Family

ID=10354048

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33522/45A Expired GB643203A (en) 1945-12-11 1945-12-11 Improvements in suction filters

Country Status (1)

Country Link
GB (1) GB643203A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE950725C (en) * 1953-08-06 1956-10-18 Westfalia Dinnendahl Groeppel Rotary drum filter
DE1026728B (en) * 1954-11-16 1958-03-27 Krauss Maffei Imp G M B H & Co Self-sucking filter drum with sloping cell floors
CN112957806A (en) * 2021-02-09 2021-06-15 深圳中广核工程设计有限公司 Bottom cleaning system and bottom cleaning method for inward-in and outward-out drum-shaped filter screen

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE950725C (en) * 1953-08-06 1956-10-18 Westfalia Dinnendahl Groeppel Rotary drum filter
DE1026728B (en) * 1954-11-16 1958-03-27 Krauss Maffei Imp G M B H & Co Self-sucking filter drum with sloping cell floors
CN112957806A (en) * 2021-02-09 2021-06-15 深圳中广核工程设计有限公司 Bottom cleaning system and bottom cleaning method for inward-in and outward-out drum-shaped filter screen

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