GB791418A - Improvements in or relating to filters - Google Patents

Improvements in or relating to filters

Info

Publication number
GB791418A
GB791418A GB13693/56A GB1369356A GB791418A GB 791418 A GB791418 A GB 791418A GB 13693/56 A GB13693/56 A GB 13693/56A GB 1369356 A GB1369356 A GB 1369356A GB 791418 A GB791418 A GB 791418A
Authority
GB
United Kingdom
Prior art keywords
roller
filter medium
shaft
medium
filters
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
GB13693/56A
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.)
Eimco Corp
Original Assignee
Eimco 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 Eimco Corp filed Critical Eimco Corp
Publication of GB791418A publication Critical patent/GB791418A/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
    • B01D33/44—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
    • B01D33/044—Filters with filtering elements which move during the filtering operation with filtering bands or the like supported on cylinders which are pervious for filtering
    • B01D33/048—Filters with filtering elements which move during the filtering operation with filtering bands or the like supported on cylinders which are pervious for filtering with endless filtering bands
    • 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
    • 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
    • B01D33/80—Accessories
    • B01D33/82—Means for pressure distribution

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtration Of Liquid (AREA)

Abstract

791,418. Travelling bend filters. EIMCO CORPORATION. May 3, 1956 [June 29, 1955], No. 13693/56. Class 46. A filter comprises an endless filter medium 28, Fig. 1, extending over a rotary drum and carries filter cake formed in passing over the drum to a discharge roller 30. The filter medium passes over a washing roller 32 and roller 34 which is adjustable to vary the tension in the filter medium. At least one of the rollers 30, 32, 34 is self-aligning being responsive to lateral movement of the filter medium to maintain the medium centred on the drum 10. This roller comprises a shaft 52, Fig. 2, supported in bearings 54. The roller is formed as two separate cylinder parts 68 having bearing blocks 64 with curved inner surfaces, trays 62 fixed to the blocks 64 fit key-ways in hub portions 58, fixed to the shaft 52, and provide relative rotative movement between the shaft and the cylinder parts 68. The inner ends of the cylinders 68 are located in alignment with one another by positioning member 70. The cylinders are thus mounted for limited rocking and longitudinal movement relative to shaft 52 and the force exerted by the filter medium 28 passing over the rollers corrects any lateral movement of the filter medium. This type of roller is not restricted to rotary filters but may be used to centralise the filter medium in other types of filters having a moving endless filter medium. In a modification a non-yielding surface roller is mounted in a support pivoted about an axis normal to the axis of the roller so that the roller is angularly displaced bodily should the filter medium creep towards one or the other lateral edge of the roller whereby the filter medium would return to its normal centred position. In a further modification the roller is mounted in resiliently displaceable bearing blocks so that the roller is tiltable to an askew position by movement of the filter medium off centre, to return the medium to its centered position.
GB13693/56A 1955-06-29 1956-05-03 Improvements in or relating to filters Expired GB791418A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US791418XA 1955-06-29 1955-06-29

Publications (1)

Publication Number Publication Date
GB791418A true GB791418A (en) 1958-03-05

Family

ID=22148701

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13693/56A Expired GB791418A (en) 1955-06-29 1956-05-03 Improvements in or relating to filters

Country Status (1)

Country Link
GB (1) GB791418A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1259841B (en) * 1962-07-13 1968-02-01 Dorr Oliver Inc Cake removal and filter belt tensioning device
GB2259870A (en) * 1991-08-28 1993-03-31 Scapa Group Plc Filter belt

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1259841B (en) * 1962-07-13 1968-02-01 Dorr Oliver Inc Cake removal and filter belt tensioning device
GB2259870A (en) * 1991-08-28 1993-03-31 Scapa Group Plc Filter belt
GB2259870B (en) * 1991-08-28 1995-01-18 Scapa Group Plc Filter belt
US5391427A (en) * 1991-08-28 1995-02-21 Scapa Group Plc Filter belt

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