GB1335094A - Method and apparatus for filtering suspensions - Google Patents

Method and apparatus for filtering suspensions

Info

Publication number
GB1335094A
GB1335094A GB2151571A GB1335094DA GB1335094A GB 1335094 A GB1335094 A GB 1335094A GB 2151571 A GB2151571 A GB 2151571A GB 1335094D A GB1335094D A GB 1335094DA GB 1335094 A GB1335094 A GB 1335094A
Authority
GB
United Kingdom
Prior art keywords
drum
trough
suspension
cake
filter
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
GB2151571A
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.)
Vogelbusch GmbH
Original Assignee
Vogelbusch 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 Vogelbusch GmbH filed Critical Vogelbusch GmbH
Publication of GB1335094A publication Critical patent/GB1335094A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • B01D33/44—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
    • B01D33/70—Filters with filtering elements which move during the filtering operation having feed or discharge devices
    • B01D33/72—Filters with filtering elements which move during the filtering operation having feed or discharge devices for feeding
    • 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
    • B01D33/804—Accessories integrally combined with devices for controlling the filtration
    • B01D33/807—Accessories integrally combined with devices for controlling the filtration by level measuring
    • 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
    • B01D2201/282—Filtering elements with a horizontal rotation or symmetry axis

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtration Of Liquid (AREA)
  • Distillation Of Fermentation Liquor, Processing Of Alcohols, Vinegar And Beer (AREA)

Abstract

1335094 Rotary drum filters VOGELBUSCH GmbH 19 April 1971 [13 Feb 1970 13 Jan 1971] 21515/71 Heading BID In the operation of a rotating filter drum 1, the interior of which is not subdivided, the transfer of suspension-to-be-filtered to the drum from trough 7 is interrupted, during one or more revolutions of the drum, by the automatic lowering of the trough by the action of pneumatic cylinder 9. The suspension is supplied to trough 7 via conduit 30. The perforated drum is covered with filter cloth 2, e.g. of stainless steel, and this has a coating of filter aid 3, e.g. powdered starch. The thickness of the layer 5 of suspension on filter cake 4 is controlled by blade 25. The filtrate, sucked into the drum, is withdrawn therefrom through suction conduit 6. The trough 7 is lowered after the filter cake has reached a predetermined thickness. After trough 7 has been lowered, blade 22 is actuated by pneumatic cylinder 24 so as to wipe excess suspension from the filter cake. After the cake has been sucked dry, washing liquid (e.g. water) is sprayed onto it from nozzles 27; the cake is then sucked dry again. The cake is now removed from the drum by knife 10 which is actuated by pneumatic cylinder 12. Knife 10 is then moved a minute amount, by rotation of latch wheel 16 actuated by pneumatic cylinder 18, so that a thin layer of filter aid 3 is removed from the drum. The trough 7 is then raised, and the cycle of stages is repeated. The time intervals of the various stages may be controlled according to the nature of the suspension being filtered. Hydraulic cylinders may be used instead of pneumatic cylinders. The knife 10 is automatically sharpened by a scraper 43 (Figs. 8, 9, 10, not shown). The filtration of brewery and wine-fermentation sediments is referred to; also the filtration of autolysed cream of yeast.
GB2151571A 1970-02-13 1971-04-19 Method and apparatus for filtering suspensions Expired GB1335094A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT132870A AT303073B (en) 1970-02-13 1970-02-13 Method and device for the filtration of suspensions
AT22771A AT308145B (en) 1970-02-13 1971-01-13 Device for removing the filter cake and / or a precoat layer in rotary filters

Publications (1)

Publication Number Publication Date
GB1335094A true GB1335094A (en) 1973-10-24

Family

ID=25591943

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2151571A Expired GB1335094A (en) 1970-02-13 1971-04-19 Method and apparatus for filtering suspensions

Country Status (8)

Country Link
AR (1) AR196053A1 (en)
AT (2) AT303073B (en)
CH (1) CH521157A (en)
DE (1) DE2106131C3 (en)
FR (1) FR2078561A5 (en)
GB (1) GB1335094A (en)
SE (1) SE370632B (en)
ZA (1) ZA71715B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2123708A (en) * 1982-07-07 1984-02-08 Ingvar Lundin Rotary vacuum filter
WO2004092534A1 (en) * 2003-04-15 2004-10-28 Cabot Corporation Method to recover brine from drilling fluids

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE422159B (en) * 1980-07-25 1982-02-22 Per Olof Lundin SET AND DEVICE FOR FILTERING OF JEST AND OTHER VEXTCELL MATERIAL ON ROTATING VACUUM FILTER
JPS6057440B2 (en) * 1981-11-25 1985-12-14 株式会社神戸製鋼所 Belt press type dewatering device
EP2522414A1 (en) 2011-05-11 2012-11-14 Siemens Aktiengesellschaft Filter device, method for its operation and usage

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2123708A (en) * 1982-07-07 1984-02-08 Ingvar Lundin Rotary vacuum filter
WO2004092534A1 (en) * 2003-04-15 2004-10-28 Cabot Corporation Method to recover brine from drilling fluids

Also Published As

Publication number Publication date
SE370632B (en) 1974-10-28
DE2106131B2 (en) 1974-03-28
ZA71715B (en) 1971-10-27
DE2106131C3 (en) 1974-10-24
CH521157A (en) 1972-04-15
AT303073B (en) 1972-11-10
FR2078561A5 (en) 1971-11-05
DE2106131A1 (en) 1971-08-26
AT308145B (en) 1973-06-25
AR196053A1 (en) 1973-11-30

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees