GB626789A - Improved screening drum for draining suspensions - Google Patents

Improved screening drum for draining suspensions

Info

Publication number
GB626789A
GB626789A GB13942/47A GB1394247A GB626789A GB 626789 A GB626789 A GB 626789A GB 13942/47 A GB13942/47 A GB 13942/47A GB 1394247 A GB1394247 A GB 1394247A GB 626789 A GB626789 A GB 626789A
Authority
GB
United Kingdom
Prior art keywords
drum
shell
cells
channels
ducts
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
GB13942/47A
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.)
Svenska Cellulosa AB
Original Assignee
Svenska Cellulosa AB
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 Svenska Cellulosa AB filed Critical Svenska Cellulosa AB
Priority to GB13942/47A priority Critical patent/GB626789A/en
Publication of GB626789A publication Critical patent/GB626789A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • 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
    • B01D33/44—Regenerating the filter material in the filter
    • B01D33/46—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element
    • B01D33/465—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element take-off rollers
    • 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
    • B01D33/70—Filters with filtering elements which move during the filtering operation having feed or discharge devices
    • B01D33/74—Filters with filtering elements which move during the filtering operation having feed or discharge devices for discharging filtrate
    • B01D33/742—Filters with filtering elements which move during the filtering operation having feed or discharge devices for discharging filtrate containing fixed liquid displacement elements or cores

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Paper (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

626,789. Filters. ABBEY, A. (Svenska Cellulosa Aktiebolag). May 23, 1947, No. 13942. [Class 46] A screening drum for fibrous suspensions and intended to rotate in one direction while being partially immersed comprises an outer perforated cylindrical shell 5, Fig. 1, an inner imperforate shell 6, a plurality of longitudinal partitions 7, Fig. 2, between the shells, and discharge ducts 9 communicating between the cells thus formed and the interior of the drum, the discharge ducts being bent backwards in relation to the direction of rotation of the drum and being brought together at one end of the drum to form a plurality of channels located beside one another in the axial direction of the drum. In the embodiment shown, sixteen cells 8 are provided and the discharge ducts are arranged in four channels, four ducts being allotted to each channel. One discharge duct may be common to two or more cells. The channels may be shared symmetrically 'between both ends of the drum, in which case the inner shell 6 tapers from the middle in both directions. A wire screen may be fixed on the outer shell 5.
GB13942/47A 1947-05-23 1947-05-23 Improved screening drum for draining suspensions Expired GB626789A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB13942/47A GB626789A (en) 1947-05-23 1947-05-23 Improved screening drum for draining suspensions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB13942/47A GB626789A (en) 1947-05-23 1947-05-23 Improved screening drum for draining suspensions

Publications (1)

Publication Number Publication Date
GB626789A true GB626789A (en) 1949-07-21

Family

ID=10032162

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13942/47A Expired GB626789A (en) 1947-05-23 1947-05-23 Improved screening drum for draining suspensions

Country Status (1)

Country Link
GB (1) GB626789A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE920064C (en) * 1950-06-08 1954-11-11 Rudolf Fischer Dipl Ing Pressure suction filter
DE935122C (en) * 1951-07-11 1955-11-10 John Strindlund Suction filter drum or suction roll

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE920064C (en) * 1950-06-08 1954-11-11 Rudolf Fischer Dipl Ing Pressure suction filter
DE935122C (en) * 1951-07-11 1955-11-10 John Strindlund Suction filter drum or suction roll

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