EP0240744A2 - Rouleau pour presse - Google Patents

Rouleau pour presse Download PDF

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Publication number
EP0240744A2
EP0240744A2 EP87103268A EP87103268A EP0240744A2 EP 0240744 A2 EP0240744 A2 EP 0240744A2 EP 87103268 A EP87103268 A EP 87103268A EP 87103268 A EP87103268 A EP 87103268A EP 0240744 A2 EP0240744 A2 EP 0240744A2
Authority
EP
European Patent Office
Prior art keywords
roller
roller according
rings
core
belt
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.)
Withdrawn
Application number
EP87103268A
Other languages
German (de)
English (en)
Other versions
EP0240744A3 (fr
Inventor
Ulrich Kollmar
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.)
Gebr Bellmer & Co KG GmbH
Original Assignee
Gebr Bellmer & Co KG 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 Gebr Bellmer & Co KG GmbH filed Critical Gebr Bellmer & Co KG GmbH
Publication of EP0240744A2 publication Critical patent/EP0240744A2/fr
Publication of EP0240744A3 publication Critical patent/EP0240744A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B9/00—Presses specially adapted for particular purposes
    • B30B9/02—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
    • B30B9/24—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using an endless pressing band
    • B30B9/241—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using an endless pressing band co-operating with a drum or roller

Definitions

  • the invention relates to a roller for presses which are at least partially wrapped around by a belt or screen, in particular for belt filter presses or belt presses.
  • the object of the invention is to ensure a perfectly adjustable guide for the belt or screen on such a press, and when using two drainage belts a tight seal in the edge areas of these drainage belts to prevent the material to be pressed between the belts or screens laterally exit.
  • this object is achieved in that the cross section of the roller perpendicular to its longitudinal axis is larger in its edge region than in its central region.
  • the idea of the invention is therefore to produce a bulging of the relevant sieve belt in its edge region as a result of the enlargement of the cross section of the roller in its end region, which on the one hand improves the guiding properties of the roller (application for, for example, wrapping rollers) but also opens up the possibility of use of two press belts to bring them to cover in their edge area, in order to achieve a seal of the material to be pressed between the two press belts.
  • this cross-sectional enlargement is achieved in that the roller consists of a cylindrical core, on the edge regions of which rings of different cross-sectional shapes are applied.
  • the cross-sectional shape of the rings to be pushed open is essentially determined by the material and nature of the bands or band used.
  • These rings can be made of rigid or elastic material, they can achieve the desired cross-sectional enlargement in the form of a bead or a truncated cone.
  • the roller 10 consists of a central region y, which will usually make up the largest part of the length of the roller, and an edge region x, in which the roller cross section is enlarged.
  • the exemplary embodiment a shows a ring with an inwardly pointing frustoconical part and a cylindrical part z, this exemplary embodiment can be used if an additional tensioning band 22 interacts with the cylindrical part z.
  • it can be a rubber ring that is easily displaceable on the core 10a and can be used, for example, to guide deflection rollers.
  • the step-like cross section in exemplary embodiment d in turn has a cylindrical region z which is suitable for cooperation with a tensioning strap.
  • the end of the core 10a can either be solid by appropriate processing are formed, which results in a cross-sectional elevation (example e) or it can be designed in the form of flexible tongues (example f), which can be spread or turned over by tensioning devices, not shown, in the roller end and can thus be adapted to different belts.
  • FIGS 2 and 3 show a practical example of application of the invention, here two dewatering belts 20 and 21 are guided on the roller 10, which enclose the material to be pressed 30 between them.
  • the inner drainage belt 20 rests on the roller 10a and is bent upward in its edge region in accordance with the use of the ring 10B (example a in FIG. 1). There it is in direct contact with the outer press belt 21, the two drainage belts 20, 21 being pressed against one another in their edge regions by a tension belt 22 which runs on the cylindrical section z of the ring 10B.
  • the configuration of the roller according to the invention in its end region can thus be used both for guiding the two drainage belts and for sealing them at the edge, in order to prevent the pressed material 30 from escaping from the volume between the two drainage belts 20, 21 at the edge.
  • the rings 10B have recesses, such as bores or grooves, which are evenly distributed over their circumference and which provide a connection between the create the press volume between the press belts 20, 21 and the end face of the rollers, so that the material to be pressed in this volume can be dewatered to the outside and backwetting of the material to be pressed is prevented.
  • the rings 10B can extend to the center of the cylindrical core 10A, so that the roller has a double-frustoconical shape, the rings can also be designed in such a way that the roller has a double-concave longitudinal cross section, as shown in FIG. 4 is shown schematically.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Filtration Of Liquid (AREA)
  • Treatment Of Fiber Materials (AREA)
EP87103268A 1986-03-10 1987-03-07 Rouleau pour presse Withdrawn EP0240744A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8606507U 1986-03-10
DE19868606507 DE8606507U1 (de) 1986-03-10 1986-03-10 Walze für Pressen

Publications (2)

Publication Number Publication Date
EP0240744A2 true EP0240744A2 (fr) 1987-10-14
EP0240744A3 EP0240744A3 (fr) 1988-07-27

Family

ID=6792544

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87103268A Withdrawn EP0240744A3 (fr) 1986-03-10 1987-03-07 Rouleau pour presse

Country Status (3)

Country Link
EP (1) EP0240744A3 (fr)
AU (1) AU6979887A (fr)
DE (1) DE8606507U1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3914491A1 (de) * 1988-05-02 1989-11-16 Flottweg Gmbh Siebbandpresse

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1976440U (de) * 1965-03-12 1968-01-04 Voith Gmbh J M Siebwalze fuer papiermaschinen.
DE1677199A1 (de) * 1966-06-13 1971-01-14 Hartmann Dr Ing Otto Fruchtpresse
US4157065A (en) * 1975-09-16 1979-06-05 Konrad Schinko Juice extractor
DE2757257C3 (de) * 1977-12-22 1981-11-12 Louis Schweizer Gmbh & Co Kg Lederfabrik, 7157 Murrhardt Abwelkpresse für Leder, Pelze u.dgl.
DE2844697C2 (de) * 1978-10-13 1984-04-19 Albert 6680 Neunkirchen Bähr Filterpresse zum Entwässern von Schlamm und ähnlichen Substanzen
US4464847A (en) * 1983-04-11 1984-08-14 Internorth, Inc. Machine for dewatering aggregate solid substrates by miscible liquid displacement

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3914491A1 (de) * 1988-05-02 1989-11-16 Flottweg Gmbh Siebbandpresse

Also Published As

Publication number Publication date
EP0240744A3 (fr) 1988-07-27
DE8606507U1 (de) 1986-04-30
AU6979887A (en) 1987-09-17

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Inventor name: KOLLMAR, ULRICH