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WO2013149795A1 - Tamis - Google Patents

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Publication number
WO2013149795A1
WO2013149795A1 PCT/EP2013/055119 EP2013055119W WO2013149795A1 WO 2013149795 A1 WO2013149795 A1 WO 2013149795A1 EP 2013055119 W EP2013055119 W EP 2013055119W WO 2013149795 A1 WO2013149795 A1 WO 2013149795A1
Authority
WO
WIPO (PCT)
Prior art keywords
screen
layer
screen according
sieve
openings
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
PCT/EP2013/055119
Other languages
German (de)
English (en)
Inventor
Werner Brettschneider
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.)
Voith Patent GmbH
Original Assignee
Voith Patent GmbH
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 Voith Patent GmbH filed Critical Voith Patent GmbH
Priority to CN201390000369.1U priority Critical patent/CN204435085U/zh
Publication of WO2013149795A1 publication Critical patent/WO2013149795A1/fr
Priority to FIU20144210U priority patent/FI10684U1/fi
Anticipated expiration legal-status Critical
Ceased 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
    • B07B1/18—Drum screens
    • 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
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
    • D21D5/00—Purification of the pulp suspension by mechanical means; Apparatus therefor
    • D21D5/02—Straining or screening the pulp
    • D21D5/16—Cylinders and plates for screens
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/30—Protecting wire-cloths from mechanical damage
    • 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

Definitions

  • the invention relates to a sieve for the treatment of a liquid to pasty medium with a plurality of sieve openings and a counter to the flow direction facing inlet side and a flow direction in the direction of flow side, which is at least partially coated.
  • Such screens are used for example for wet screening of pulp suspensions to remove impurities present therein. As a rule, they are rigid and differ from flexible endless screens used in screen presses and paper machines.
  • the wear-resistant layer of the inlet side has a hardness between 800 and 2800 HV (Vickers hardness).
  • Base body to be applied. This can be achieved, for example, by applying a layer in liquid or pasty form or, in particular, at a level
  • the sieve may be rigid or flexible, flat or uneven (in particular as a cylinder).
  • the inlet-side surface of the screen can be profiled. This is about the application of Störancen or weld beads eg. By laser or by creating notches, grooves o.ä. by mechanical processing or with the help of a water jet relatively easy.
  • the sieve which is here by way of example, flows through the pulp suspension from the inlet side 7 in the direction of flow 6. Larger impurities are thereby retained and can be removed on the inlet side 7, for example, with a reamer.
  • This non-stick coating in the screen openings 5 causes a more effective and dynamic flow. Turbulences in the region of the boundary wall of the screen openings 5 are reduced.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
  • Paper (AREA)
  • Combined Means For Separation Of Solids (AREA)
PCT/EP2013/055119 2012-04-04 2013-03-13 Tamis Ceased WO2013149795A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201390000369.1U CN204435085U (zh) 2012-04-04 2013-03-13 用于处理液态的至膏状的介质的筛网
FIU20144210U FI10684U1 (fi) 2012-04-04 2014-10-03 Seula

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012205506.1 2012-04-04
DE102012205506A DE102012205506A1 (de) 2012-04-04 2012-04-04 Sieb

Publications (1)

Publication Number Publication Date
WO2013149795A1 true WO2013149795A1 (fr) 2013-10-10

Family

ID=47846060

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2013/055119 Ceased WO2013149795A1 (fr) 2012-04-04 2013-03-13 Tamis

Country Status (5)

Country Link
CN (1) CN204435085U (fr)
AT (1) AT14116U1 (fr)
DE (2) DE202012013059U1 (fr)
FI (1) FI10684U1 (fr)
WO (1) WO2013149795A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12509825B2 (en) 2023-01-23 2025-12-30 Aikawa Fiber Technologies Oy Screen cylinder with bars configured to receive a wear resistant spray coating

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10099155B2 (en) * 2016-02-26 2018-10-16 Crown Iron Works Company Screen for extractor system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1718385A (en) * 1922-01-24 1929-06-25 Oliver Sherwood Co Screen
US3121660A (en) * 1961-02-13 1964-02-18 Jr Edward H Hall Fourdrinier wire and method of making the same
EP0119345A1 (fr) * 1983-01-21 1984-09-26 The Black Clawson Company Epurateur d'une pâte fibreuse à papier
US20060204657A1 (en) * 2005-03-09 2006-09-14 Astenjohnson, Inc. Papermaking fabrics with contaminant resistant nanoparticle coating and method of in situ application

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT244735B (de) * 1961-03-28 1966-01-25 Lindsay Wire Weaving Co Gewebtes Papiermaschinensiebband
US5207873A (en) * 1992-04-17 1993-05-04 Huyck Corporation Anti-contaminant treatment for papermaking fabrics
DE202007014091U1 (de) * 2007-04-30 2008-04-24 Voith Patent Gmbh Sieb, insbesondere starres Sieb für die Behandlung von zur Papiererzeugung geeigneten Faserstoffsuspensionen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1718385A (en) * 1922-01-24 1929-06-25 Oliver Sherwood Co Screen
US3121660A (en) * 1961-02-13 1964-02-18 Jr Edward H Hall Fourdrinier wire and method of making the same
EP0119345A1 (fr) * 1983-01-21 1984-09-26 The Black Clawson Company Epurateur d'une pâte fibreuse à papier
US20060204657A1 (en) * 2005-03-09 2006-09-14 Astenjohnson, Inc. Papermaking fabrics with contaminant resistant nanoparticle coating and method of in situ application

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12509825B2 (en) 2023-01-23 2025-12-30 Aikawa Fiber Technologies Oy Screen cylinder with bars configured to receive a wear resistant spray coating

Also Published As

Publication number Publication date
DE202012013059U1 (de) 2014-08-25
FI10684U1 (fi) 2014-11-13
DE102012205506A1 (de) 2013-10-10
AT14116U1 (de) 2015-04-15
CN204435085U (zh) 2015-07-01

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