AU608400B2 - Filter element for collecting dusts - Google Patents

Filter element for collecting dusts

Info

Publication number
AU608400B2
AU608400B2 AU27778/89A AU2777889A AU608400B2 AU 608400 B2 AU608400 B2 AU 608400B2 AU 27778/89 A AU27778/89 A AU 27778/89A AU 2777889 A AU2777889 A AU 2777889A AU 608400 B2 AU608400 B2 AU 608400B2
Authority
AU
Australia
Prior art keywords
filter element
collecting dusts
dusts
holes
collecting
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.)
Ceased
Application number
AU27778/89A
Other versions
AU2777889A (en
Inventor
Ekkehard Weber
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.)
GEA Group AG
Original Assignee
Metallgesellschaft 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 Metallgesellschaft AG filed Critical Metallgesellschaft AG
Publication of AU2777889A publication Critical patent/AU2777889A/en
Application granted granted Critical
Publication of AU608400B2 publication Critical patent/AU608400B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
    • B01D45/04—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia
    • B01D45/08—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia by impingement against baffle separators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/10—Filter screens essentially made of metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B01D39/1692—Other shaped material, e.g. perforated or porous sheets

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtering Materials (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Description

606 0 V)0 COMMONWEALTH OF AUSTRAW 14 PATENTS ACT 1952-69 COMPLETE SPECIFICATION (OR IGINAL) Class Application Number* Lodged: Comhle peifcaio Ldgd:This doCul enmade rrunder Aopee pcfccept oded: triju ndents tc t the Priority 49 ad is rorrect for I t. Class Related Art: Name of Applicant: Address of Applicant Actual, Inventor: Address for Service METALLGESELLSCHAFT AKTIENGESELLSCHAFT Reuterweg 14, D-6000 Frankfurt/Main, Federal Republic of Germany EKKEHARD WEBER EDWD. WATERS SONS, 50 QUEEN STREET, MELBOURNE, AUSTRALIA, 3000.
Complete Specification for the invention entitled: FILTER ELEMENT FOR COLLECTING DUSTS The following statment is a full d63cription &f this Invention, including the best method of performing It known to :-u
AL
2
DESCRIPTION
This invention relates to a filter element for collecting dusts from gases or air, which filter element consists of metals, alloys or plastics and is thin-walled and similar to a film or sheet and has a wall thickness from 0.05 to 2 mm and has a large number if regularly arranged holes which differ in shape and size.
Published German Application 3,134,148 discloses a filter element which is of the kind described first hereine; before and in which the holes are 5 to 200 pm in diameter and tit r t. the ratio of the hole spacing to the hole diameter is between 4:1 and 5:1. Whereaa the known filter element has been used to Tr'" collect dust at a high rate, an undesirably fast rise of the pressure drop has been observed in some cases during the filtering operation and has required a cleaning of the filter elemen" after short intervals of time. For this reason it is an object of the invention to provide a filter element which is of the kind described first hereinbefore and which will collect dust at a high rate and can be operated with a pressure drop o0 that is as constant as possible for the longest possible time.
The object underlying the invention is accumplished in that the holes have a hydraulic diameter from 0.01 to 1 mm and the area covered by the holes is 30 to 90% of the front surface area of the filter element. It has surprisingly been found that a filter element formed with irregularily shaped holes, which may be, lens-shaped or rectangular or 3 star-shaped, will collect dust at a high rate in conjunction with an only slowly rising pressure drop if said filter element has the features in accordance with the invention.
The filter element designed in accordance with the invention may be used as a flat sheet or a tube or a bag.
The filter element is cleaned in known manner in that it is rapped and/or in that a gas is passed through the filter element in a reverse streai which may be continuous or pulsed.
Even fine dusts are removed by the filter element from the raw ,o gas to such a high degree that the pure gas contains less than Si 4* 10 nig/sm' dust. The danger of a clogging of the filter element may be reduced by the provision of non-circular holes so that a high permeabiliuy for tife gas to be dedusted is maintained and the pressure drop rises only slowly even in a pro- S I longed time.
The hydraulic diameter is defined as the quotient of four times the cross-sectional area of a'hole which constitutes a flow passage and the Poerph-i4l t of said hole.
AU27778/89A 1988-01-09 1989-01-06 Filter element for collecting dusts Ceased AU608400B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3800457 1988-01-09
DE3800457A DE3800457C1 (en) 1988-01-09 1988-01-09

Publications (2)

Publication Number Publication Date
AU2777889A AU2777889A (en) 1989-07-13
AU608400B2 true AU608400B2 (en) 1991-03-28

Family

ID=6345022

Family Applications (1)

Application Number Title Priority Date Filing Date
AU27778/89A Ceased AU608400B2 (en) 1988-01-09 1989-01-06 Filter element for collecting dusts

Country Status (6)

Country Link
EP (1) EP0327737A3 (en)
JP (1) JPH01224023A (en)
AU (1) AU608400B2 (en)
CA (1) CA1321959C (en)
DE (1) DE3800457C1 (en)
ZA (1) ZA89157B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU624947B2 (en) * 1989-05-10 1992-06-25 Metallgesellschaft Aktiengesellschaft Filter element for separating dusts from gases

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8904306U1 (en) * 1989-04-07 1989-06-22 Heinrich Fiedler GmbH & Co. KG, 8400 Regensburg Disc filter consisting of individual disc filter segments
DE4126420C1 (en) * 1991-08-09 1993-02-11 Bergwerksverband Gmbh, 4300 Essen, De Metallic filter element of improved mechanical stability - obtd. from chromium@-nickel@-molybdenum@-titanium@-contg. steel sheet and has round orifices or slits on inflow side, used for sepn. of particles from gases
JPH0759184A (en) † 1993-03-05 1995-03-03 Matsushita Electric Ind Co Ltd Case and acousting video equipment and its manufacture
NL1005398C2 (en) * 1997-02-28 1998-08-31 Matheus Everardus Antonis Device for separating a substance into a substantially solid and a substantially liquid matter and such a method.

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU5960969A (en) * 1969-08-18 1971-02-25 Air filters
WO1982002345A1 (en) * 1981-01-05 1982-07-22 & Haley Malin V-shaped filter
AU2224488A (en) * 1987-10-01 1989-04-06 Societe Des Produits Nestle S.A. A filter for use in a cartridge for the preparation of a beverage

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1299212B (en) * 1956-04-18 1969-07-10 American Air Filter Co Airborne fiber separator, especially for textile companies
GB1473853A (en) * 1974-02-16 1977-05-18 Domnick Hunter Eng Filters
CH597895A5 (en) * 1975-03-24 1978-04-14 Andersen 2000 Inc Filtering (sub)micron solid and liq. particles from fast gas streams
DE3025126A1 (en) * 1980-07-03 1982-02-04 Weber, Ekkehard, Prof. Dr.-Ing., 4300 Essen Dust filter made from thin plastics or metal foil - with numerous small perforations to promote retention of fine particles
DE3134148C2 (en) * 1980-07-03 1993-02-11 Weber Ekkehard Use of a filter element
JPS596231A (en) * 1982-07-05 1984-01-13 Mitsubishi Rayon Co Ltd Porous fluorocarbon resin membrane and its production
DE3447277A1 (en) * 1984-12-22 1986-06-26 Nordenia Kunststoffe Peter Mager KG, 2841 Steinfeld Self-ventilating sack made of plastic film

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU5960969A (en) * 1969-08-18 1971-02-25 Air filters
WO1982002345A1 (en) * 1981-01-05 1982-07-22 & Haley Malin V-shaped filter
AU2224488A (en) * 1987-10-01 1989-04-06 Societe Des Produits Nestle S.A. A filter for use in a cartridge for the preparation of a beverage

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU624947B2 (en) * 1989-05-10 1992-06-25 Metallgesellschaft Aktiengesellschaft Filter element for separating dusts from gases

Also Published As

Publication number Publication date
EP0327737A3 (en) 1991-03-06
JPH01224023A (en) 1989-09-07
CA1321959C (en) 1993-09-07
DE3800457C1 (en) 1989-07-27
AU2777889A (en) 1989-07-13
EP0327737A2 (en) 1989-08-16
ZA89157B (en) 1990-09-26

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