GB961320A - Improvements in or relating to methods of and apparatus for separating a suspension into residue and filtrate - Google Patents

Improvements in or relating to methods of and apparatus for separating a suspension into residue and filtrate

Info

Publication number
GB961320A
GB961320A GB10277/61A GB1027761A GB961320A GB 961320 A GB961320 A GB 961320A GB 10277/61 A GB10277/61 A GB 10277/61A GB 1027761 A GB1027761 A GB 1027761A GB 961320 A GB961320 A GB 961320A
Authority
GB
United Kingdom
Prior art keywords
valve
filtrate
residue
valves
opened
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
GB10277/61A
Inventor
Wolfgang Hett
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.)
KOELSCH FOELZER WERKE AG
Original Assignee
KOELSCH FOELZER WERKE AG
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 KOELSCH FOELZER WERKE AG filed Critical KOELSCH FOELZER WERKE AG
Priority to GB10277/61A priority Critical patent/GB961320A/en
Publication of GB961320A publication Critical patent/GB961320A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/60—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor integrally combined with devices for controlling the filtration
    • B01D29/603—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor integrally combined with devices for controlling the filtration by flow measuring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B01D29/31—Self-supporting filtering elements
    • B01D29/33—Self-supporting filtering elements arranged for inward flow filtration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
    • B01D29/52—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in parallel connection
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/16—Cleaning-out devices, e.g. for removing the cake from the filter casing or for evacuating the last remnants of liquid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/04—Supports for the filtering elements
    • B01D2201/043—Filter tubes connected to plates
    • B01D2201/0446—Filter tubes connected to plates suspended from plates at the upper side of the filter elements

Abstract

961,320. Filters for liquids; automatic control of filters. KOLSCH-FOLZER WERKE A.G. March 21, 1961, No. 10277/61. Heading BID. After filtration, backwashing is only momentary and is followed by discharge of residue by inflowing unfiltered suspension. During filtration, suspension inlet valves 11 to 13 to a filter 1, Fig. 1, are open, filtrate valve 20 is open, and valve 22 in a by-pass 21 preferably remains open. Filtration is under pressure, with a counter-pressure on the filtrate side. On attainment of a predetermined residue thickness, a valve 17 in a residue-discharge pipe 16 is opened and valves 11, 12 partly closed. Consequently, filtrate flows back through the filter tubes 6 and detaches the residue 6a therefrom. Almost immediately afterwards, filtrate valve 20 is closed. Valves 11, 12 are now opened wide so that incoming suspension forces residue through pipe 16. Finally, valve 17 is closed, valve 20 opened, and valves 11, 12 opened to their normal extent. In Fig. 2 (not shown), a pressurized-water inlet pipe is connected between filtrate outlet 18 and valve 20, and the by-pass 21, 22 is provided around a valve 32 on the pressurized-water pipe. Valve 32 is opened briefly instead of valve 20 being left open briefly for the backwashing step. The appropriate valves may be actuated in sequence by pneumatic control apparatus set in operation by reduction of flow through a flowmeter in the suspension inlet pipe. Alternatively, hydraulic or electric valve-actuation may be used. Both pressurewater and filtrate may be used for backwashing ; compressed air may be admitted to the water or filtrate pipe or to portion 3 of vessel 1 to assist backwashing, or compressed air may be used alone.
GB10277/61A 1961-03-21 1961-03-21 Improvements in or relating to methods of and apparatus for separating a suspension into residue and filtrate Expired GB961320A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB10277/61A GB961320A (en) 1961-03-21 1961-03-21 Improvements in or relating to methods of and apparatus for separating a suspension into residue and filtrate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB10277/61A GB961320A (en) 1961-03-21 1961-03-21 Improvements in or relating to methods of and apparatus for separating a suspension into residue and filtrate

Publications (1)

Publication Number Publication Date
GB961320A true GB961320A (en) 1964-06-17

Family

ID=9964886

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10277/61A Expired GB961320A (en) 1961-03-21 1961-03-21 Improvements in or relating to methods of and apparatus for separating a suspension into residue and filtrate

Country Status (1)

Country Link
GB (1) GB961320A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0231587A2 (en) * 1986-01-31 1987-08-12 Schewitz, Jonathan A method of batch filtration and control means for a filter
CN113230739A (en) * 2021-05-17 2021-08-10 广东韶钢松山股份有限公司 Side filtering system for reducing clamping stagnation of three-way valve

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0231587A2 (en) * 1986-01-31 1987-08-12 Schewitz, Jonathan A method of batch filtration and control means for a filter
EP0231587A3 (en) * 1986-01-31 1988-08-17 Alexander Schewitz A method of batch filtration and control means for a filter
CN113230739A (en) * 2021-05-17 2021-08-10 广东韶钢松山股份有限公司 Side filtering system for reducing clamping stagnation of three-way valve

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