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GB816368A - Improvements in methods of and apparatus for filtering - Google Patents

Improvements in methods of and apparatus for filtering

Info

Publication number
GB816368A
GB816368A GB40432/57A GB4043257A GB816368A GB 816368 A GB816368 A GB 816368A GB 40432/57 A GB40432/57 A GB 40432/57A GB 4043257 A GB4043257 A GB 4043257A GB 816368 A GB816368 A GB 816368A
Authority
GB
United Kingdom
Prior art keywords
cake
slurry
filter
sector
pan
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
GB40432/57A
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.)
Olin Corp
Original Assignee
Olin 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 Olin Corp filed Critical Olin Corp
Publication of GB816368A publication Critical patent/GB816368A/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
    • B01D33/466—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element scrapers
    • 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
    • B01D33/58—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element
    • B01D33/60—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element for washing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D37/00—Processes of filtration
    • B01D37/02—Precoating the filter medium; Addition of filter aids to the liquid being filtered

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Treatment Of Sludge (AREA)

Abstract

816,368. Rotary drum filters. OLIN MATHIESON CHEMICAL CORPORATION. Dec. 31, 1957 [Jan. 8, 1957], No. 40432/57. Class 46. In a rotary drum filter a top layer of the filter cake is removed from the drum and the remaining cake is removed and formed into a slurry, separate from the feed slurry, and is applied to the filter cake formed on the filter cloth emerging from the feed slurry. A filter cloth 25 on a rotating drum 23 picks up a layer of cake 39 from the feed slurry pan 20 over the sector A. While travelling through sector B a flinger 15 sprays a layer of reclaim slurry from the trough 14, fed from the pan 12, forming a layer of cake 42, on the cake 39. Over the sector C sprays 31 wash the filter cake and over the sector D the top layer of cake is first removed by an adjustable knife 33 and falls down a shoot 37 after which the remaining filter cake is removed by the combined effect of air pressure and sprays 32 forming the reclaim slurry in pan 12, a seal 20a preventing the reclaim slurry from entering the feed slurry pan 20. The knife 33 may be of any form provided with an adjustment and the flinger 15 may be of any suitable spray device. The reclaim slurry may be formed in a tank separate from the filter device and being fed to the trough 14 by a pump. Both pans 10 and 12 are provided with stirrers 26. The method of the invention is applicable to any continuous method of vacuum or pressure filtration such as disc type filters or endless belt filters.
GB40432/57A 1957-01-08 1957-12-31 Improvements in methods of and apparatus for filtering Expired GB816368A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US816368XA 1957-01-08 1957-01-08

Publications (1)

Publication Number Publication Date
GB816368A true GB816368A (en) 1959-07-08

Family

ID=22165392

Family Applications (1)

Application Number Title Priority Date Filing Date
GB40432/57A Expired GB816368A (en) 1957-01-08 1957-12-31 Improvements in methods of and apparatus for filtering

Country Status (1)

Country Link
GB (1) GB816368A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2131711A (en) * 1982-11-29 1984-06-27 Giovanni Tibaldi Regenerating tannery water
CN107986307A (en) * 2017-12-29 2018-05-04 重庆市南川区先锋氧化铝有限公司 A kind of vacuum type filtration apparatus that turns over for the production of red mud alumina by sintering
CN110075592A (en) * 2019-05-31 2019-08-02 威海沁和实业有限公司 Spiral filtration rinsing maching
CN115487531A (en) * 2022-10-08 2022-12-20 常州工学院 Comprehensive treatment device for neutralization crystallization and continuous drying of p-aminophenol
CN115666753A (en) * 2020-05-27 2023-01-31 戈德弗兰公司 Rotary filter and related filtration method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2131711A (en) * 1982-11-29 1984-06-27 Giovanni Tibaldi Regenerating tannery water
CN107986307A (en) * 2017-12-29 2018-05-04 重庆市南川区先锋氧化铝有限公司 A kind of vacuum type filtration apparatus that turns over for the production of red mud alumina by sintering
CN110075592A (en) * 2019-05-31 2019-08-02 威海沁和实业有限公司 Spiral filtration rinsing maching
CN115666753A (en) * 2020-05-27 2023-01-31 戈德弗兰公司 Rotary filter and related filtration method
CN115487531A (en) * 2022-10-08 2022-12-20 常州工学院 Comprehensive treatment device for neutralization crystallization and continuous drying of p-aminophenol
CN115487531B (en) * 2022-10-08 2024-04-16 常州工学院 A comprehensive treatment device for neutralization, crystallization and continuous drying of p-aminophenol

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