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WO2002053259A3 - Rotary filter with a blowback valve - Google Patents

Rotary filter with a blowback valve Download PDF

Info

Publication number
WO2002053259A3
WO2002053259A3 PCT/US2002/000251 US0200251W WO02053259A3 WO 2002053259 A3 WO2002053259 A3 WO 2002053259A3 US 0200251 W US0200251 W US 0200251W WO 02053259 A3 WO02053259 A3 WO 02053259A3
Authority
WO
WIPO (PCT)
Prior art keywords
compartments
cells
drum
pressure
tank
Prior art date
Application number
PCT/US2002/000251
Other languages
French (fr)
Other versions
WO2002053259A2 (en
Inventor
John O Beard
Original Assignee
Baker Hughes Inc
John O Beard
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 Baker Hughes Inc, John O Beard filed Critical Baker Hughes Inc
Priority to AU2002235304A priority Critical patent/AU2002235304A1/en
Publication of WO2002053259A2 publication Critical patent/WO2002053259A2/en
Publication of WO2002053259A3 publication Critical patent/WO2002053259A3/en

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
    • 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
    • B01D33/48—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
    • B01D33/50—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles
    • 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

Landscapes

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

Abstract

A filter assembly includes a tank and a filter drum rotatably disposed inside the tank. The drum has an inner surface and an outer surface and is provided long the outer surface with a plurality of recessed compartments or cells, each of the compartments being provided with a filter element. A pressure let-down valve is disposed in the tank, the pressure let-down valve communicating sequentially with the compartments or cells during rotation of the drum, to draw off an overpressure in the compartments or cells. In addition, a blowback valve is disposed in the tank downstream of the pressure let-down valve as defined by a direction of rotation of the drum. The blowback valve communicates sequentially with the compartments or cells during rotation of the drum after the compartments or cells have passed the pressure let-down valve. This apparatus enables discharge of solids from the compartments or cells at atmospheric or ambient pressure.
PCT/US2002/000251 2001-01-03 2002-01-03 Rotary filter with a blowback valve WO2002053259A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002235304A AU2002235304A1 (en) 2001-01-03 2002-01-03 Rotary filter with a blowback valve

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US25952001P 2001-01-03 2001-01-03
US60/259,520 2001-01-03

Publications (2)

Publication Number Publication Date
WO2002053259A2 WO2002053259A2 (en) 2002-07-11
WO2002053259A3 true WO2002053259A3 (en) 2002-12-27

Family

ID=22985282

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2002/000251 WO2002053259A2 (en) 2001-01-03 2002-01-03 Rotary filter with a blowback valve

Country Status (3)

Country Link
CN (1) CN1257001C (en)
AU (1) AU2002235304A1 (en)
WO (1) WO2002053259A2 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101829449B (en) * 2010-05-18 2012-09-19 王光华 Rotary pressure filter
GB201008412D0 (en) * 2010-05-20 2010-07-07 Davy Process Techn Ltd Process and system
GB201102476D0 (en) * 2011-02-11 2011-03-30 Davy Process Techn Ltd Process
CN103386227B (en) * 2013-07-08 2015-05-27 嘉兴石化有限公司 Improvement on pressure filter for producing purified terephthalic acid
CN104174204A (en) * 2014-08-26 2014-12-03 陈亚锋 Fluid filtering method and device
DE102014116307A1 (en) * 2014-11-03 2016-05-04 ZIEMANN HOLVRIEKA GmbH Apparatus, system and method for continuous recovery and / or continuous clarification of wort and other media in the brewery and beverage industry and related uses
CN207562468U (en) * 2017-03-22 2018-07-03 天华化工机械及自动化研究设计院有限公司 A kind of isolated location and rotary pressure filter
CN112370873B (en) * 2020-10-27 2022-06-14 西部宝德科技股份有限公司 High-temperature crude synthesis gas complete set filtering system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1914742A (en) * 1931-01-07 1933-06-20 Oliver United Filters Inc Filter and method of operation
US2352303A (en) * 1939-08-19 1944-06-27 Frank W Young Filter
DE975333C (en) * 1950-08-05 1961-11-09 Carl Dr Steinmann Blowback device on cellless rotary vacuum filters
US5589079A (en) * 1994-02-17 1996-12-31 Baker Hughes Incorporated Crystal recovery method employing a rotary vacuum filtration drum with valved hopper cake treatment means

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1914742A (en) * 1931-01-07 1933-06-20 Oliver United Filters Inc Filter and method of operation
US2352303A (en) * 1939-08-19 1944-06-27 Frank W Young Filter
DE975333C (en) * 1950-08-05 1961-11-09 Carl Dr Steinmann Blowback device on cellless rotary vacuum filters
US5589079A (en) * 1994-02-17 1996-12-31 Baker Hughes Incorporated Crystal recovery method employing a rotary vacuum filtration drum with valved hopper cake treatment means

Also Published As

Publication number Publication date
AU2002235304A1 (en) 2002-07-16
CN1257001C (en) 2006-05-24
WO2002053259A2 (en) 2002-07-11
CN1484544A (en) 2004-03-24

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