WO2009033302A1 - Tamis - Google Patents

Tamis Download PDF

Info

Publication number
WO2009033302A1
WO2009033302A1 PCT/CH2008/000367 CH2008000367W WO2009033302A1 WO 2009033302 A1 WO2009033302 A1 WO 2009033302A1 CH 2008000367 W CH2008000367 W CH 2008000367W WO 2009033302 A1 WO2009033302 A1 WO 2009033302A1
Authority
WO
WIPO (PCT)
Prior art keywords
sieve
diarrhea
screen
channels
box
Prior art date
Application number
PCT/CH2008/000367
Other languages
German (de)
English (en)
Inventor
Jürgen Moosmann
Original Assignee
Bühler 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 Bühler AG filed Critical Bühler AG
Publication of WO2009033302A1 publication Critical patent/WO2009033302A1/fr

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
    • B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
    • B07B1/38—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens oscillating in a circular arc in their own plane; Plansifters
    • 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

Definitions

  • the invention relates to a sieve, in particular a sieve for use in PJansichtern or the like sieving and viewing devices for the screening of floury, granular or granular products.
  • Such screens have a sieve box with bottom plate and fines discharge as well as a sieve frame covered with sieve cloth. Like the sieve box, the sieve frame is divided into sections with webs, can be inserted into the sieve box without any connection elements and with a positive fit.
  • Such an insert screen frame has a sufficiently high inherent rigidity so that it is not deformed and does not have to be fixed with fastening elements on the screen box.
  • the screen frame is preferably made of metallic materials and covered with screen mesh.
  • the product-carrying surfaces of the sieve box are preferably coated with plastic, the bottom plate is made of metal or plastic.
  • the invention has for its object to develop a screen that allows a better performance adjustment to the product flow in the classifier, especially Plansichter and is particularly suitable for smaller services ..
  • the solution of the problem is achieved with the features of claim 1.
  • the screen box has at least a central diarrhea channel. Such a channel is provided in addition to conventional channels on the edge of the screen box.
  • two such central channels can be provided parallel to each other in the screen box, wherein such a screen box with two central channels and two, adjacent sub-boxes resp. two sieve boxes can be formed.
  • the latter allows greater flexibility.
  • the outer dimensions (base area) of the screen are preferably identical in all embodiments.
  • the sieve boxes are preferably filled with foam and provided with insertion sieves whose frames are made of metal, preferably of stainless steel, based on the disclosure according to EP-B-584302.
  • the outlet box preferably has a modular construction, which, with a small number of molded parts, enables a high variety of outlet variants, also with regard to the number of product runs.
  • the invention will be described below in an embodiment with reference to a drawing.
  • the drawing shows a foamed screen box.
  • a sieve box 1 of a sieve, foamed of PUR consists of two sub-boxes V lying next to one another and has a base plate 2 as well as side walls and intermediate walls 3 for receiving an insert screen frame (not illustrated) with webs.
  • the frame height of the screen box is 8 cm. Inserted, the sub-boxes 1 "form a screen box 1, and thus two central diarrhea channels 5 are present in addition to the usual, lateral diarrhea channels 4.
  • the width of these diarrhea channels 5 is approximately 6 cm, which are diarrhea channels 5 arranged on the long sides relative to the sub-boxes V. preferably identical, which simplifies insertion.
  • the foamed screen box 1 has no sharp corners and edges, which simplifies cleaning. The wear is low.
  • the screen also has specifically designed corner pieces of the outer frame, which allow a good centering within outer side walls.
  • the insert screen frame made of stainless steel is provided with a contour-matched seal, which ensures optimum tightness between insert screen frame and screen box 1.

Landscapes

  • Combined Means For Separation Of Solids (AREA)

Abstract

L'invention concerne un tamis, notamment un tamis à utiliser dans des plansichters ou dans des dispositifs de tamisage et de criblage pour cribler des produits farineux, granulaires ou granuleux. Outre les canaux pour produits criblés (4) latéraux habituels, il est prévu, selon l'invention, au moins un autre canal pour produits criblés (5), disposé au centre.
PCT/CH2008/000367 2007-09-10 2008-09-04 Tamis WO2009033302A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200710042838 DE102007042838A1 (de) 2007-09-10 2007-09-10 Sieb
DE102007042838.5 2007-09-10

Publications (1)

Publication Number Publication Date
WO2009033302A1 true WO2009033302A1 (fr) 2009-03-19

Family

ID=40002971

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CH2008/000367 WO2009033302A1 (fr) 2007-09-10 2008-09-04 Tamis

Country Status (2)

Country Link
DE (1) DE102007042838A1 (fr)
WO (1) WO2009033302A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB548881A (en) * 1941-04-25 1942-10-28 John Speight Improvements in or relating to plansifters
DE102006005969A1 (de) * 2006-02-08 2007-08-09 Bühler AG Sieb

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH685604A5 (de) 1992-02-29 1995-08-31 Buehler Ag Plansichter.
DE10105647A1 (de) 2001-01-19 2002-07-25 Buehler Ag Sieb und Verfahren zur Herstellung von Sieben

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB548881A (en) * 1941-04-25 1942-10-28 John Speight Improvements in or relating to plansifters
DE102006005969A1 (de) * 2006-02-08 2007-08-09 Bühler AG Sieb

Also Published As

Publication number Publication date
DE102007042838A1 (de) 2009-03-12

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