GB1489838A - Grading and dewatering screens - Google Patents

Grading and dewatering screens

Info

Publication number
GB1489838A
GB1489838A GB15485/75A GB1548575A GB1489838A GB 1489838 A GB1489838 A GB 1489838A GB 15485/75 A GB15485/75 A GB 15485/75A GB 1548575 A GB1548575 A GB 1548575A GB 1489838 A GB1489838 A GB 1489838A
Authority
GB
United Kingdom
Prior art keywords
screen
apertures
sheets
elastomeric
grading
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
GB15485/75A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB15485/75A priority Critical patent/GB1489838A/en
Priority to ZA762190A priority patent/ZA762190B/en
Priority to DE19762616191 priority patent/DE2616191A1/en
Priority to SE7604420A priority patent/SE405820B/en
Priority to AU13096/76A priority patent/AU505776B2/en
Publication of GB1489838A publication Critical patent/GB1489838A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
    • B07B1/469—Perforated sheet-like material
    • 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
    • B01D29/01—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 flat filtering elements
    • B01D29/012—Making filtering elements
    • 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
    • B01D29/01—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 flat filtering elements
    • B01D29/03—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 flat filtering elements self-supporting
    • 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
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/18—Filters characterised by the openings or pores
    • B01D2201/184—Special form, dimension of the openings, pores of the filtering elements

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combined Means For Separation Of Solids (AREA)
  • Centrifugal Separators (AREA)

Abstract

1489838 Forming elastomeric screens T C ADAMS 14 April 1976 [15 April 1975] 15485/75 Headings B1D and B2H An elastomeric, e.g. polyurethane, screen or screen liner for a grading or dewatering apparatus is formed by (i) placing face to face two sheets 3, 5 of elastomeric material, at least one of which is to form the screen or screen liner; (ii) punching apertures 6 through both sheets; and (iii) separating the sheets to form at least one screen or screen liner sheet having apertures which taper from one face to the other. Two screens may be formed by punching through identical sheets as shown in Figure 3. Alternatively, the backing sheet may be waste material or material of different elastic properties, hardness and/or thickness. A further backing sheet may be applied to the top face of the screen-forming sheet before punching. The apertures may be formed in more than one punching stage. The elastomeric sheet material may contain openwork reinforcing elements. By use of a relatively thin backing sheet, the apertures in the screen may be formed to have an angle of taper of substantially zero at their narrow end. The screens or screen liners may be used in grading apparatus, e.g. for grading sand or gravel, or dewatering apparatus, e.g. for dewatering coal slurries. In either case the screen may be inclined and/or oscillated. The screen may be flat or curved and may form part of a screen centrifuge.
GB15485/75A 1975-04-15 1975-04-15 Grading and dewatering screens Expired GB1489838A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB15485/75A GB1489838A (en) 1975-04-15 1975-04-15 Grading and dewatering screens
ZA762190A ZA762190B (en) 1975-04-15 1976-04-12 Improvements relating to grading and dewatering screens
DE19762616191 DE2616191A1 (en) 1975-04-15 1976-04-13 METHOD OF MANUFACTURING A SCREEN FROM ELASTOMER MATERIAL
SE7604420A SE405820B (en) 1975-04-15 1976-04-14 MAKE A MANUFACTURE OF A GALLERY OR A SILDUKE FOR SCREENING OR DRAINAGE
AU13096/76A AU505776B2 (en) 1975-04-15 1976-04-15 Method of punching an elastomeric screen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB15485/75A GB1489838A (en) 1975-04-15 1975-04-15 Grading and dewatering screens

Publications (1)

Publication Number Publication Date
GB1489838A true GB1489838A (en) 1977-10-26

Family

ID=10059971

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15485/75A Expired GB1489838A (en) 1975-04-15 1975-04-15 Grading and dewatering screens

Country Status (5)

Country Link
AU (1) AU505776B2 (en)
DE (1) DE2616191A1 (en)
GB (1) GB1489838A (en)
SE (1) SE405820B (en)
ZA (1) ZA762190B (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2199763A (en) * 1987-01-16 1988-07-20 Beaudrey & Cie Filter panel
DE19820675A1 (en) * 1998-05-08 1999-11-11 Fiedler Heinrich Gmbh Brewing mash lauter tun base zone filter has curved edges minimizing
EP2290160A1 (en) * 2007-04-30 2011-03-02 Voith Patent GmbH Method for producing a filter, in particular a rigid filter for processing fibrous suspensions used for creating paper
CN102615044A (en) * 2012-03-22 2012-08-01 山东华联矿业股份有限公司 Flat-grid sieve
CN110548674A (en) * 2019-10-14 2019-12-10 湖北枝江峡江矿山机械有限责任公司 Linear vibration dewatering screening machine core for sand and stone
WO2020023209A1 (en) * 2018-07-27 2020-01-30 Dow Global Technologies Llc Filter screen
CN113369134A (en) * 2021-06-11 2021-09-10 武汉科技大学 Efficient and durable elastic screen and forming method thereof

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2519885B1 (en) * 1982-01-15 1986-05-23 Gantois Sa PERFORATED VULCANIZED RUBBER PERFORATED SURFACE ON SHEET
DE3512490A1 (en) * 1985-04-06 1986-10-16 Hein, Lehmann AG, 4000 Düsseldorf METHOD FOR PRODUCING PLASTIC SCREEN ELEMENTS
DE4324662A1 (en) * 1993-07-22 1995-01-26 Voith Gmbh J M Sieve
KR102113721B1 (en) * 2018-08-03 2020-06-02 주식회사 에이런 Filter for water treatment and filter apparatus having the same

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2199763A (en) * 1987-01-16 1988-07-20 Beaudrey & Cie Filter panel
US4889629A (en) * 1987-01-16 1989-12-26 E. Beaudrey & Cie Filter panel with parallel passages and mechanical filter screen comprising same
GB2199763B (en) * 1987-01-16 1990-07-04 Beaudrey & Cie Filter panel with parallel passages and mechanical filter screen comprising same
DE19820675A1 (en) * 1998-05-08 1999-11-11 Fiedler Heinrich Gmbh Brewing mash lauter tun base zone filter has curved edges minimizing
EP2290160A1 (en) * 2007-04-30 2011-03-02 Voith Patent GmbH Method for producing a filter, in particular a rigid filter for processing fibrous suspensions used for creating paper
CN102615044A (en) * 2012-03-22 2012-08-01 山东华联矿业股份有限公司 Flat-grid sieve
WO2020023209A1 (en) * 2018-07-27 2020-01-30 Dow Global Technologies Llc Filter screen
CN110548674A (en) * 2019-10-14 2019-12-10 湖北枝江峡江矿山机械有限责任公司 Linear vibration dewatering screening machine core for sand and stone
CN113369134A (en) * 2021-06-11 2021-09-10 武汉科技大学 Efficient and durable elastic screen and forming method thereof

Also Published As

Publication number Publication date
AU1309676A (en) 1977-10-20
SE405820B (en) 1979-01-08
SE7604420L (en) 1976-10-16
ZA762190B (en) 1977-05-25
DE2616191A1 (en) 1976-11-11
AU505776B2 (en) 1979-11-29

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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