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GB1381883A - Filtering apparatus - Google Patents

Filtering apparatus

Info

Publication number
GB1381883A
GB1381883A GB6037671A GB6037671A GB1381883A GB 1381883 A GB1381883 A GB 1381883A GB 6037671 A GB6037671 A GB 6037671A GB 6037671 A GB6037671 A GB 6037671A GB 1381883 A GB1381883 A GB 1381883A
Authority
GB
United Kingdom
Prior art keywords
valve
reservoir
open
pressure
pneumatic
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
GB6037671A
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.)
Unifrax I LLC
Original Assignee
Carborundum Co
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 Carborundum Co filed Critical Carborundum Co
Publication of GB1381883A publication Critical patent/GB1381883A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
    • B01D46/04—Cleaning filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0002—Casings; Housings; Frame constructions
    • B01D46/0004—Details of removable closures, lids, caps or filter heads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/42—Auxiliary equipment or operation thereof
    • B01D46/4272—Special valve constructions adapted to filters or filter elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/42—Auxiliary equipment or operation thereof
    • B01D46/44—Auxiliary equipment or operation thereof controlling filtration
    • B01D46/446—Auxiliary equipment or operation thereof controlling filtration by pressure measuring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/42—Auxiliary equipment or operation thereof
    • B01D46/44—Auxiliary equipment or operation thereof controlling filtration
    • B01D46/46—Auxiliary equipment or operation thereof controlling filtration automatic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/66—Regeneration of the filtering material or filter elements inside the filter
    • B01D46/70—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter
    • B01D46/71—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter with pressurised gas, e.g. pulsed air
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/206—Flow affected by fluid contact, energy field or coanda effect [e.g., pure fluid device or system]
    • Y10T137/2065—Responsive to condition external of system
    • Y10T137/2071—And causing change or correction of sensed condition

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Loading And Unloading Of Fuel Tanks Or Ships (AREA)

Abstract

1381883 Control circuit for successive cleaning of gas filter bags CARBORUNDUM CO 29 Dec 1971 [4 Jan 1971] 60376/71 Heading B1T [Also in Division G3] A plurality of rows of inward-flow gas filter bags 29 are cleaned successively by reverse flow jets of gas from reservoir 35 directed through respective valves 43, the valves being controlled and operated by a pneumatic circuit (Fig. 6, not shown) which causes one valve 43 to open whenever the pressure in the reservoir rises to a predetermined level, the resulting pressure fall in the reservoir causing the one valve to close again and also causing a sequencing device (187) to index one place so that the next valve 43 will be opened when the reservoir pressure rises again. The reservoir is continuously supplied with clean gas so that rows of bags 29 are cleaned one after another, device (187) automatically switching back to the first valve 43 when the last valve 43 has been opened to repeat the cycle. A pneumatic timing circuit (191) automatically overides the control circuit (189) which normally controls the cycle described above so as to switch device (187) to open the next valve 43 if the said cycle is interrupted by one valve 43 failing to open. An alarm circuit (193) monitors the controls for any malfunctioning and incorporates an overide switch (255) whereby the device (187) may be controlled manually. Bags 29 are of synthetic fibre or woven wool and have internal wire support frames. Figs. 3, 4, 5 (not shown) respectively illustrate a pneumatically actuated valve 43, device (131) which monitors the reservoir pressure and produces a positive or zero pneumatic signal in response to that pressure being at or below the predetermined level, and a pneumatic amplifier (73) which converts a small pneumatic signal from device (187) into a force sufficient to open valve portion (111) and thus allow gas to discharge from the lower half of valve 43 to allow it to open.
GB6037671A 1971-01-04 1971-12-29 Filtering apparatus Expired GB1381883A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10340471A 1971-01-04 1971-01-04

Publications (1)

Publication Number Publication Date
GB1381883A true GB1381883A (en) 1975-01-29

Family

ID=22294994

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6037671A Expired GB1381883A (en) 1971-01-04 1971-12-29 Filtering apparatus

Country Status (8)

Country Link
US (1) US3735566A (en)
JP (1) JPS5539362B1 (en)
CA (1) CA955823A (en)
DE (1) DE2165830A1 (en)
FR (1) FR2121550B1 (en)
GB (1) GB1381883A (en)
IT (1) IT957502B (en)
SE (1) SE390890B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2116872A (en) * 1982-03-15 1983-10-05 Italiana Essiccatoi Drying apparatus with air filter

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3861893A (en) * 1972-09-05 1975-01-21 Barber Greene Co Filter device with scavenger system
SE391458B (en) * 1974-05-02 1977-02-21 Svenska Flaektfabriken Ab KIT AND DEVICE FOR CLEANING HOSE FILTER WITH PRESSURE PULSE OF CLEANING MEDIUM
US4218227A (en) * 1975-07-28 1980-08-19 Donaldson Company, Inc. Dust collector
US4099937A (en) * 1976-11-19 1978-07-11 Donaldson Company, Inc. Automatic dumping roof drill dust collector
CH625969A5 (en) * 1977-07-15 1981-10-30 Buehler Ag Geb
US4157899A (en) * 1977-10-11 1979-06-12 Cea Carter-Day Company Pulsed backflush air filter
DE2925128C2 (en) * 1979-06-22 1982-10-28 Mannesmann AG, 4000 Düsseldorf Device for monitoring the closing and opening function of valves which are connected downstream of a compressed air reservoir in cleaning pulse lines of dedusting devices
US4465497A (en) * 1980-05-02 1984-08-14 Howeth David F Pneumatic cyclic event timing actuator and control circuit for use with air blast filter cleaning and bulk material bin blasting systems
US4445912A (en) * 1982-02-04 1984-05-01 The Mike Volk Co., Inc. Effluent air filtration apparatus
US4507130A (en) * 1983-03-21 1985-03-26 General Electric Environmental Services, Inc. Staggered method cleaning cycle for fabric filter system including multiple-baghouses
LU85236A1 (en) * 1984-03-02 1985-10-14 Wurth Paul Sa POLLUTED GAS TREATMENT AND PURIFICATION PLANT
US4701192A (en) * 1985-05-31 1987-10-20 Tidewater Industrial Components, Inc. Vacuum system
DE3537226C2 (en) * 1985-10-19 1997-04-17 Stanelle Karl Heinz Method and device for cleaning the dust filter of a silo
US4719791A (en) * 1986-12-05 1988-01-19 Ets, Inc. Individual filter bag monitoring system for baghouses
US5348568A (en) * 1992-02-05 1994-09-20 Asahi Glass Company Ltd. Filtering method of flue gas of a boiler and a filter apparatus for hot gas
US5477953A (en) * 1992-03-16 1995-12-26 Environmental Products Corporation Filter and filter cleaning system for a reverse vending machine
DE29706359U1 (en) * 1997-04-10 1997-06-05 Thomas Josef Heimbach GmbH & Co., 52353 Düren Device for use in filtering separators
KR20000020312U (en) * 1999-05-03 2000-12-05 민흥기 Apparatus to inject compressed air of dust collector
US7082640B2 (en) 2003-07-18 2006-08-01 Christy, Inc. Ambient air backflushed filter vacuum
CN101616724A (en) 2006-11-30 2009-12-30 唐纳森公司 The nozzle arrangements of cleaning filter elements and method
US8075674B2 (en) 2006-11-30 2011-12-13 Donaldson Company, Inc. Filter apparatus with pulse cleaning and methods for pulse cleaning filters
CN101541395B (en) 2006-11-30 2013-04-10 唐纳森公司 System configuration of pulsed cleaned panel-style filter elements and methods
WO2008067457A1 (en) 2006-11-30 2008-06-05 Donaldson Company, Inc. Filter apparatus configuration of pulsed cleaned panel-style filters and methods
WO2009102381A1 (en) * 2008-02-14 2009-08-20 Donaldson Company, Inc. Method for selecting a filter element for a dust collector with regeneration with pulsed gas
US8118900B2 (en) 2009-09-30 2012-02-21 Donaldson Company, Inc. Dust collector and methods
US8516654B1 (en) 2009-10-05 2013-08-27 Pathfinder Concepts, Llc Filter system for a vacuum cleaner
CN106237741B (en) * 2016-10-09 2018-06-08 西安绿都环保科技有限公司 A kind of sack cleaner bleed pressure automated watch-keeping facility and method

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3392741A (en) * 1964-10-05 1968-07-16 Gen Electric Means to control the admission of liquid into a container
CH453862A (en) * 1966-12-13 1968-03-31 Fraire Aldo Pneumatic device to avoid clogging of a sock filter for powders in general and in particular cereal flours
US3474814A (en) * 1968-03-18 1969-10-28 Honeywell Inc Control apparatus
US3521430A (en) * 1968-05-20 1970-07-21 Jack W Kice Air filter with fluidic timing mechanism
US3659598A (en) * 1969-06-17 1972-05-02 Gen Medical Corp Respirator with fluid amplifiers with fluid timer
FR2032619A5 (en) * 1970-01-15 1970-11-27 K B Engineering Co Pneumatic timer for explosive atmosphere - sleeve filter
JPS506260A (en) * 1973-05-17 1975-01-22

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2116872A (en) * 1982-03-15 1983-10-05 Italiana Essiccatoi Drying apparatus with air filter

Also Published As

Publication number Publication date
DE2165830A1 (en) 1972-07-27
CA955823A (en) 1974-10-08
JPS5539362B1 (en) 1980-10-11
US3735566A (en) 1973-05-29
FR2121550B1 (en) 1976-10-29
SE390890B (en) 1977-01-31
IT957502B (en) 1973-10-20
FR2121550A1 (en) 1972-08-25

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee