WO1989005200A1 - Self-cleaning screening device - Google Patents

Self-cleaning screening device Download PDF

Info

Publication number
WO1989005200A1
WO1989005200A1 PCT/US1988/004146 US8804146W WO8905200A1 WO 1989005200 A1 WO1989005200 A1 WO 1989005200A1 US 8804146 W US8804146 W US 8804146W WO 8905200 A1 WO8905200 A1 WO 8905200A1
Authority
WO
WIPO (PCT)
Prior art keywords
air
self
screening elements
screening
screening device
Prior art date
Application number
PCT/US1988/004146
Other languages
French (fr)
Inventor
Robert E. Frey
Original Assignee
Frey Robert E
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 Frey Robert E filed Critical Frey Robert E
Priority to DE3854000T priority Critical patent/DE3854000T2/en
Priority to EP89901176A priority patent/EP0391969B1/en
Publication of WO1989005200A1 publication Critical patent/WO1989005200A1/en

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
    • B01D46/42—Auxiliary equipment or operation thereof
    • B01D46/4281—Venturi's or systems showing a venturi effect
    • 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
    • B01D46/52—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material
    • B01D46/521—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material using folded, pleated material
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
    • B07B1/50—Cleaning
    • B07B1/55—Cleaning with fluid jets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B11/00—Arrangement of accessories in apparatus for separating solids from solids using gas currents
    • B07B11/08—Cleaning arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B7/00—Selective separation of solid materials carried by, or dispersed in, gas currents
    • B07B7/06—Selective separation of solid materials carried by, or dispersed in, gas currents by impingement against sieves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2275/00—Filter media structures for filters specially adapted for separating dispersed particles from gases or vapours
    • B01D2275/20—Shape of filtering material
    • B01D2275/201—Conical shape

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combined Means For Separation Of Solids (AREA)
  • Cleaning In General (AREA)

Abstract

The invention comprises a self-cleaning screening device (11) for separating fine particles from a stream of air and a mixture containing coarse and fine particulates. The device (11) includes a tilted box-like housing formed by walls (12-15), a plurality of elongated screening elements (26) arranged in the housing, and an air cleaning device comprising a blow pipe (31) and a series of nozzles (27) directed at the screening elements through Venturi tubes (25). At periodic intervals, a jet or pulse of air is injected into the Venturi tubes (25) to reverse air flow and rid the screening elements (26) of adhered coarse particles.
PCT/US1988/004146 1987-12-07 1988-11-21 Self-cleaning screening device WO1989005200A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE3854000T DE3854000T2 (en) 1987-12-07 1988-11-21 SELF-CLEANING SCREEN ARRANGEMENT.
EP89901176A EP0391969B1 (en) 1987-12-07 1988-11-21 Self-cleaning screening device

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US12923087A 1987-12-07 1987-12-07
US07/214,765 US4880530A (en) 1987-12-07 1988-07-05 Self-cleaning screening device
US214,765 1988-07-05
US129,230 1993-09-29

Publications (1)

Publication Number Publication Date
WO1989005200A1 true WO1989005200A1 (en) 1989-06-15

Family

ID=26827387

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1988/004146 WO1989005200A1 (en) 1987-12-07 1988-11-21 Self-cleaning screening device

Country Status (5)

Country Link
US (1) US4880530A (en)
EP (1) EP0391969B1 (en)
AU (1) AU2912689A (en)
DE (1) DE3854000T2 (en)
WO (1) WO1989005200A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6126016A (en) * 1995-02-28 2000-10-03 Graham; Neil Deryck Bray Screening device and apparatus including same
US6247214B1 (en) 1995-10-10 2001-06-19 Elias John Hyde Holding device for fastening laces

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5122262A (en) * 1990-01-12 1992-06-16 Summers Thomas W Separator screen with intermittent vacuum
US5098557A (en) * 1990-02-09 1992-03-24 Hirschler Dan E Granular material cleaning apparatus and method
US5551642A (en) * 1992-08-04 1996-09-03 Advanced Electrostatic Technologies, Inc. Electrostatic dispersing apparatus
IT1269841B (en) * 1994-05-27 1997-04-15 Himont Inc PROCEDURE AND DEVICE FOR THE CLASSIFICATION OF SOLID PARTICLES
AU701468B2 (en) * 1995-02-28 1999-01-28 Neil Deryck Bray Graham Screening device and apparatus including same
US5890655A (en) * 1997-01-06 1999-04-06 The Procter & Gamble Company Fan spray nozzles having elastomeric dome-shaped tips
US6651819B2 (en) * 2001-07-06 2003-11-25 General Electric Company Debris removal from fluidized sand bed
JP4598694B2 (en) * 2005-06-22 2010-12-15 株式会社リコー Cleaning device and cleaning method
US8470183B2 (en) 2009-11-05 2013-06-25 Daritech, Inc. Systems and methods for extracting sand from raw slurry material
US8926846B2 (en) 2009-11-05 2015-01-06 Daritech, Inc. Systems and methods for extracting particulate from raw slurry material
BR112014028595B1 (en) * 2012-05-17 2020-12-29 Donaldson Company, Inc. filter system and method for removing particulate matter from a dirty air stream
US9126132B2 (en) 2012-05-17 2015-09-08 Donaldson Company, Inc. Air filter assembly having venturi elements with extended pulse outlets
US10603611B2 (en) 2014-05-30 2020-03-31 Daritech, Inc. Cleaning systems and methods for rotary screen separators
US10603675B2 (en) 2014-11-02 2020-03-31 Dari-Tech, Inc. Systems and methods for extracting particulate from raw slurry material
US10350642B2 (en) * 2015-11-13 2019-07-16 3M Innovative Properties Company Method of shape sorting crushed abrasive particles
CN106670105A (en) * 2016-12-29 2017-05-17 安徽清水岩生态科技有限公司 Efficient powder-like material separating device
DE102019107169A1 (en) * 2019-03-20 2020-09-24 Novus air GmbH Dedusting system
US20200384400A1 (en) * 2019-06-07 2020-12-10 Industrial Accessories Company Top inlet vacuum pulse cleaning dust collector
CN110508064A (en) * 2019-09-03 2019-11-29 三一重机有限公司 Air Filter, engine pack and excavator
CN111359869A (en) * 2020-02-26 2020-07-03 江苏鑫华半导体材料科技有限公司 Electronic grade polycrystalline silicon screening device and method
US11491512B2 (en) * 2020-05-21 2022-11-08 Halliburton Energy Services, Inc. Systems and methods for cleaning shale shakers
CN113102013B (en) * 2021-04-01 2022-05-31 顾刘振 Crushing and screening device for road and bridge construction

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1229542A (en) * 1916-10-10 1917-06-12 Thomas Thorkildsen Separator.
DE1053472B (en) * 1957-10-04 1959-03-26 Masch Und Muehlenbau Wittenbe Hydrocyclone
US3011639A (en) * 1958-03-04 1961-12-05 State Steel Products Inc Screening apparatus for separating material
US3816176A (en) * 1972-03-29 1974-06-11 Celleco Ab Method and apparatus for cleaning strainers
US4174276A (en) * 1978-06-19 1979-11-13 Leslie Otness Household grain cleaner
US4217117A (en) * 1978-06-19 1980-08-12 Wheelabrator-Frye Inc. Filter bag support for multiple bag filters
US4282090A (en) * 1980-06-20 1981-08-04 St. Louis Conveyor Company Inc. Rotary sifting device
US4419234A (en) * 1981-09-24 1983-12-06 Pall Corporation Multiple cartridge filter assembly with removable filter cartridge array
US4464263A (en) * 1980-09-02 1984-08-07 Fram Corporation Pleated filter element and integral shield and method for making same
US4486205A (en) * 1982-02-26 1984-12-04 Shinroku Nishiyama Powdery dust separating apparatus in dust collector
US4521231A (en) * 1983-11-10 1985-06-04 General Electric Environmental Services, Inc. High capacity gas filter system
US4610704A (en) * 1985-11-14 1986-09-09 Richard Kenneth L Downflow dust filter

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4218227A (en) * 1975-07-28 1980-08-19 Donaldson Company, Inc. Dust collector
JPS57153775A (en) * 1981-03-16 1982-09-22 Kikkoman Shoyu Co Ltd Classifier

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1229542A (en) * 1916-10-10 1917-06-12 Thomas Thorkildsen Separator.
DE1053472B (en) * 1957-10-04 1959-03-26 Masch Und Muehlenbau Wittenbe Hydrocyclone
US3011639A (en) * 1958-03-04 1961-12-05 State Steel Products Inc Screening apparatus for separating material
US3816176A (en) * 1972-03-29 1974-06-11 Celleco Ab Method and apparatus for cleaning strainers
US4174276A (en) * 1978-06-19 1979-11-13 Leslie Otness Household grain cleaner
US4217117A (en) * 1978-06-19 1980-08-12 Wheelabrator-Frye Inc. Filter bag support for multiple bag filters
US4282090A (en) * 1980-06-20 1981-08-04 St. Louis Conveyor Company Inc. Rotary sifting device
US4464263A (en) * 1980-09-02 1984-08-07 Fram Corporation Pleated filter element and integral shield and method for making same
US4419234A (en) * 1981-09-24 1983-12-06 Pall Corporation Multiple cartridge filter assembly with removable filter cartridge array
US4486205A (en) * 1982-02-26 1984-12-04 Shinroku Nishiyama Powdery dust separating apparatus in dust collector
US4521231A (en) * 1983-11-10 1985-06-04 General Electric Environmental Services, Inc. High capacity gas filter system
US4610704A (en) * 1985-11-14 1986-09-09 Richard Kenneth L Downflow dust filter

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP0391969A4 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6126016A (en) * 1995-02-28 2000-10-03 Graham; Neil Deryck Bray Screening device and apparatus including same
US6364119B1 (en) 1995-02-28 2002-04-02 Neil Deryck Bray Graham Screening device and apparatus including same
US6247214B1 (en) 1995-10-10 2001-06-19 Elias John Hyde Holding device for fastening laces

Also Published As

Publication number Publication date
DE3854000D1 (en) 1995-07-20
US4880530A (en) 1989-11-14
AU2912689A (en) 1989-07-05
EP0391969B1 (en) 1995-06-14
DE3854000T2 (en) 1995-10-19
EP0391969A1 (en) 1990-10-17
EP0391969A4 (en) 1991-06-05

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