EP0036858B1 - Plateau de cribleuse - Google Patents

Plateau de cribleuse Download PDF

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Publication number
EP0036858B1
EP0036858B1 EP80901265A EP80901265A EP0036858B1 EP 0036858 B1 EP0036858 B1 EP 0036858B1 EP 80901265 A EP80901265 A EP 80901265A EP 80901265 A EP80901265 A EP 80901265A EP 0036858 B1 EP0036858 B1 EP 0036858B1
Authority
EP
European Patent Office
Prior art keywords
screen
deck according
support structure
sieve
spacer elements
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
EP80901265A
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German (de)
English (en)
Other versions
EP0036858A1 (fr
Inventor
Kurt Wolff
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.)
Steinhaus GmbH
Original Assignee
Steinhaus 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6074883&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0036858(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Steinhaus GmbH filed Critical Steinhaus GmbH
Publication of EP0036858A1 publication Critical patent/EP0036858A1/fr
Application granted granted Critical
Publication of EP0036858B1 publication Critical patent/EP0036858B1/fr
Expired legal-status Critical Current

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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
    • B07B1/4645—Screening surfaces built up of modular elements

Definitions

  • the invention relates to a screen deck for screening machines, trays or the like, consisting of a supporting structure and releasably fastened thereon, with a plurality of individual screen components provided with screen openings, which complement each other to form a continuous separating surface and have the shape of a polygon in plan.
  • a screen deck of this type is known (DE-A-2 632 511), in which the substantially square screen components are not only fastened to the supporting structure at their four corners, but directly with opposite longitudinal sides on parallel struts forming the supporting structure lie on.
  • the edges of the sieve elements overlap the struts of the supporting structure and are therefore supported along the entire length of their long side.
  • the known embodiment suffers from the disadvantage that the screen elements cannot have any screen openings in the area of their longitudinal edges resting on the support struts, which limits the effective, open screen area.
  • the struts of the support structure must be adapted to the support sides of the screen components both in their course and in their dimensions. A predetermined width of the support struts of the support structure cannot therefore be undershot, as a result of which the material expenditure for the support structure cannot be further reduced in the known design.
  • a sieve tray is already part of the state of the art, the sieve components of which can be supported on spacers on trusses of the sieving machine (GB-A-1 107049).
  • This known sieve plate does not provide any information for increasing the effective, open sieve area in the case of a sieve plate that has a large number of sieve components.
  • the sieve bottom is continuously supported in the longitudinal direction of the machine by the fastening profiles serving as spacer elements.
  • the invention achieves the task of achieving a larger, effectively effective, open screen area of the entire screen components.
  • the support of the sieve components only in the area of the corners thereof enables the effective effective open sieve area to be enlarged, the sieve openings being able to reach to the edge of the individual sieve components or even beyond.
  • the support structure which is offset from the underside of the sieve components at a distance from the bottom, does not impede the passage of the screenings, even in the area of those screen openings which, viewed in the direction of fall of the screenings, lie above the individual struts of the support structure.
  • the struts of the supporting structure can have a streamlined shape on their upper side and / or can be provided with a wear protection layer.
  • the spacer elements can either be firmly attached to the sieve components or can be designed as separate components that can be inserted between the sieve components and the supporting structure. It is also possible to arrange the spacer elements firmly on the supporting structure.
  • the spacer elements can advantageously be formed by bearing blocks on the supporting structure.
  • the aerodynamic shape of the support structure can be formed by inclined or convexly curved upper sides of the struts.
  • the tops of the struts can have a gable roof shape.
  • the sieve components are advantageously fixed directly in the receiving openings of the spacer elements by means of lugs on the corner and / or by means of locking pins.
  • the sieve components consist of elastic solid material with fully or partially embedded reinforcement. It is also advantageous if the sieve components have circumferential sealing lips on lateral abutting surfaces.
  • Each individual sieve element has the basic shape of a regular polygon and, in a preferred embodiment, the shape of a square, as shown in the drawing. It is important that not only the attachment but also the support of the individual sieve components only takes place in the area of the corners of the respective polygon, that is to say in the area of the four corners with a square basic shape. If the sieve components have a larger number of corners, the support of the individual sieve components can also be provided only at some of these corners. It is thus possible to attach and support a hexagonal or octagonal sieve component only in the area of every second corner.
  • the sieve components 1 are essentially composed of edge webs 2 and intersecting inner webs 3, which enclose sieve openings 4.
  • the screen openings 4 have the same basic shape as the screen component 1 itself, but they can also have a different shape, in particular a slot or slot shape.
  • the sieve components 1 have lugs 6 on the underside, which project downward beyond the lower boundary surface of the sieve components 1. With these undersides 6 on the underside, the sieve components 1 are fastened to an underlying support structure 7, the connection of the sieve components 1 to the support structure 7 via spacer elements 8. These spacer elements 8 provide a distance “A” between the underside of the sieve components 1 and the top of the supporting structure 7. The sieve components 1 can also be fastened to the spacer elements 8 differently than via the lugs 6.
  • the support structure 7 consists of tubular support struts onto which bearing blocks 9 are placed as spacer elements 8 in the region of the adjacent corners 5 of the sieve components 1.
  • bearing blocks 9 have on their upper side one or more receiving openings 10, into which the undersides 6 of the sieve components 1 are inserted and fixed therein.
  • all the lugs 6 engage in the area of the abutting corners of adjacent sieve components 1 in a common receiving opening 10 of the spacer elements 8.
  • the lugs 6 of the sieve components 1 have the shape of a quarter cylinder or quarter cylinder tube, so that the square basic shape of the Sieve components 1 complement the four adjoining lugs 6 at the adjacent corners 5 of the sieve components 1 to form a full cylinder or full cylinder tube engaging in the receiving opening 10 of the respective bearing block 9.
  • the corner-side lugs 6 of the sieve components 1 can be fixed in the receiving openings 10 of the bearing blocks 9 either via a push-button-like design or via additional expansion pins to be used.
  • the struts of the support structure 7 can also be arranged diagonally to the sieve components 1.
  • 3 and 4 show sieve components 1 for a sieve deck according to the invention, to which the spacer elements 8 on the underside are formed directly in the form of protruding spacer feet 11.
  • the height of the spacer feet 11 determines the distance “A” between the underside of the sieve components 1 and the top of the support structure 7 of the sieve deck.
  • the spacer feet 11 are designed as quarter-tube sleeves and carry spreading tabs 12 at their lower end, with which they are inserted through fastening openings 15 on the upper side of the relevant struts of the supporting structure 7.
  • a fastening pin 13 is inserted, which expands the spreading tabs 12 and thus holds the sieve components 1 to the supporting structure 7.
  • FIG. 5 shows a further embodiment of a screen deck according to the invention, in which the screen components 1 are connected to the supporting structure 7 via spacer elements 8 designed as separate components 16.
  • the fastening of the sieve components 1, which project downwards, on the corner-side lugs 6 to the spacer components 16, can be carried out in the same way as the securing of the sieve components 1 with firmly formed spacer elements 8 according to FIG. 3.
  • the lugs themselves form the spreading tabs 12 with their free ends and receive the fastening pin 13 in the through opening formed by the addition.
  • the separate spacer components 16 have a corresponding receiving opening 17 on the top, through which the lugs 6 of the sieve components 1 are inserted.
  • the attachment of the spacer components 16 on the underlying support structure 7 can take place via underside molded-on locking heads 18, which are buttoned into corresponding fastening openings 19 of the support structure 7.
  • the spacer components 16 expediently consist of an elastic material, such as in particular plastic, from which the sieve components 1 are preferably also produced.
  • the fastening pins 13 can consist of the same plastic material.
  • FIG. 6 shows an embodiment of a screen cover according to the invention, in which the spacer elements 8 are seated on the supporting structure 7 in a frame-fixed manner.
  • the peculiarity of the supporting structure 7 used here is that its struts 20 are formed from an upright square profile.
  • a saddle roof-shaped bevel of the upper sides 21 of the struts 20 of the supporting structure 7 is thus achieved in order to facilitate sliding of the screened material from the struts 20.
  • the wear on the supporting structure by the screenings is reduced to a minimum, on the other hand, this measure also prevents the screenings from being deposited on the upper side of the supporting structure 7.
  • FIG. 7 shows further cross-sectional shapes for the struts of the supporting structure 7, with which these advantages are achieved.
  • FIG. 7a shows again the square cross-sectional profile for the struts 20 with top surfaces 21 which are slanted in the form of a gable roof.
  • Fig. 7b also shows a strut 22 with a saddle roof-shaped sloping tops 21, but this is achieved here in that an angle rail is placed on the top of a flat lying square profile.
  • 7c shows a strut 23 which has a cylindrical tubular cross-sectional profile with a curved upper side 24. In the same way, the strut 25 shown in FIG.
  • the screen components 1 are only point-supported at their corners, there is a risk that free gaps can form downward between the side abutting surfaces 26 of the adjacent screen components 1, through which screenings can pass.
  • the sieve components 1 can have at least one circumferential sealing lip 27 along their lateral abutting surfaces 26, which is illustrated in FIG. 8.
  • Fig. 9 shows a screen component as it is preferably used for a screen deck of the type according to the invention. It consists of an elastic solid material that is reinforced by an embedded reinforcement 28, 29.
  • the reinforcement is divided into an outer circumferential ring reinforcement 28 located in the area of the edge webs 2, which essentially extends between the support corners 5 of the sieve components 1.
  • This ring reinforcement 28 is supplemented by a cross-shaped reinforcement 29, which is arranged in the direction of the transverse and longitudinal center of the sieve components 1.
  • Both the outer reinforcement 28 and the inner, crossing reinforcement 29 can be completely or partially embedded in the elastic solid material of the sieve components 1.
  • the sieve components 1 consist of elastic solid material with an outer, annular reinforcement 28, which extends between the support corners 5 of the sieve components 1.
  • the reinforcement 28 is offset somewhat inwards so that half, outwardly opening sieve openings 30 can be formed along the edges of the sieve components 1, which, as shown in FIG. 10, coincide with the peripheral, half sieve openings 30 of adjacent sieve components 1 complete to full sieve openings. This results in a screen surface with a uniform grid for the screen openings, which extends over all screen components 1.
  • the same effect can also be achieved if the edge webs 2 of the sieve components 1 are made half as wide as the inner webs 3.

Landscapes

  • Combined Means For Separation Of Solids (AREA)

Abstract

Le plateau et les bordures ou analogues des cribleuses peuvent etre disposes de facon amovibles sur la structure portante (7). Ils peuvent etre constitues de parties (8) munies d'un grand nombre d'ouvertures de criblage. Ces parties ou elements du crible se completent le long d'une surface de separation traversante. Elles sont fixees a la structure portante uniquement dans la region de certains de leurs angles. Pour obtenir une grande surface de criblage ouverte et de grande efficacite, les parties ne sont pas disposees de facon usuelle avec leurs bords sur la structure portante mais seulement dans la region de leurs angles de fixation, a distance de la structure portante, soutenues par celle-ci et reliees a elle par des entretoises. Ainsi, la surface de criblage active, formee par les ouvertures de criblage, peut-elle s'etendre jusqu'au bord de chaque partie ou meme aller au-dela. La structure portante n'empeche plus le passage de la matiere a cribler.

Claims (13)

1. Panneau de tamis pour appareils à tamiser, appareils à claies ou appareils analogues, formé d'une structure de support (7) et des éléments séparés de tamis (1) percés d'un grand nombre d'ouvertures de tamisage (4) et fixés de manière amovible sur la structure de support (7), les éléments (1) formant ensemble une surface de séparation continue, ayant en plan la forme d'un polygone, caractérisé en ce que les éléments de tamis (1) ne sont supportés que dans la zone de certains ou de tous de leurs coins fixés (5) à une certaine distance de la structure de support (7) et sont reliés à cette structure de support par l'intermédiaire d'éléments d'entretoisement (8), et en ce que les éléments de tamis (1) voisins sont posés par leurs coins (5) adjacents chaque fois sur un éléments d'entretoisement (8) individuel et les éléments d'entretoisement (8) présentent, dans leurs faces supérieures, une ouverture d'admission unique (10, 17) destinée à la fixation centrale de tous les coins adjacents (5) des éléments de tamis (1) en question.
2. Panneau de tamis suivant la revendication 1, caractérisé en ce que les éléments d'entretoisement (8) sont rigidement fixés aux éléments de tamis (1).
3. Panneau de tamis suivant la revendication 1, caractérisé en ce que les éléments d'entretoisement (8) sont des éléments séparés (15) pouvant être insérés entre les éléments de tamis (1) et la structure de support (7).
4. Panneau de tamis suivant la revendication 1, caractérisé en ce que les éléments d'entretoisement (8) sont rigidement fixés à la structure de support (7).
5. Panneau de tamis suivant la revendication 4, caractérisé en ce que les éléments d'entretoisement (8) sont formés pat de petits chevalets de support (9) montés sur la structure de support (7).
6. Panneau de tamis suivant l'une quelconque des revendications 1 à 5, caractérisé en ce que la structure de support (7) est formée de barres (20, 22,23,25) dont les faces supérieures (21, 24) sont inclinées par rapport à la surface de séparation.
7. Panneau de tamis suivant la revendication 6, caractérisé en ce que les faces supérieures (21) des barres (20, 22) de la structure de support (7) ont la forme d'un toit à deux versants.
8. Panneau de tamis suivant la revendication 6, caractérisé en ce que les faces supérieures (24) de barres (23, 25) de la structure de support (7) sont cintrées.
9. Panneau de tamis suivant l'une quelconque des revendications 1 à 8, caractérisé en ce que les éléments de tamis (1) sont fixés directement par des saillies de coins (6) et/ou par des tenons de fixations (13) dans les ouvertures d'amission (10,17) des éléments d'entretoisement (8).
10. Panneau de tamis suivant l'une quelconque des revendications 1 à 9, caractérisé en ce que les éléments de tamis (1) sont faits d'une matière élastique massive comportant un renforcement (28,29) noyé complètment ou partiellement.
11. Panneau de tamis suivant l'une quelconque des revendications 1 à 10, caractérisé en ce que les éléments de tamis (1) présentent des lèvres d'étanchéité périphériques (27) sur leurs surfaces d'about latérales (26).
12. Panneau de tamis suivant l'une quelconque des revendications 1 à 11, caractérisé en ce que les éléments de tamis (1) comportent, le long de leurs bords, des demi-ouvertures de tamisage (30) qui s'ouvrent vers l'extérieur et qui forment des ouvertures complètes dans des éléments de tamis (1) voisins.
13. Panneau de tamis suivant l'une quelconque des revendications 1 à 12, caractérisé en ce que les éléments de tamis (1) ont, en plan, une forme carrée ou rectangulaire.
EP80901265A 1979-07-04 1981-01-26 Plateau de cribleuse Expired EP0036858B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2926987 1979-07-04
DE2926987A DE2926987B1 (de) 1979-07-04 1979-07-04 Siebmaschinen-Siebdeck

Publications (2)

Publication Number Publication Date
EP0036858A1 EP0036858A1 (fr) 1981-10-07
EP0036858B1 true EP0036858B1 (fr) 1984-04-04

Family

ID=6074883

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80901265A Expired EP0036858B1 (fr) 1979-07-04 1981-01-26 Plateau de cribleuse

Country Status (8)

Country Link
US (1) US4409099A (fr)
EP (1) EP0036858B1 (fr)
AU (1) AU546016B2 (fr)
BR (1) BR8008965A (fr)
CA (1) CA1148503A (fr)
DE (1) DE2926987B1 (fr)
WO (1) WO1981000065A1 (fr)
ZA (1) ZA804039B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19860612A1 (de) * 1998-12-29 2000-07-06 Ludwig Krieger Draht Und Kunst Siebbelag für Schwingsiebe

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US4661245A (en) * 1982-12-09 1987-04-28 Fioris Pty Ltd. Screening system
DE3307916A1 (de) * 1983-03-05 1984-09-06 Hein, Lehmann AG, 4000 Düsseldorf Siebbelag mit auswechselbaren siebelementen
US4757664A (en) * 1985-06-04 1988-07-19 Screenex Wire Weaving Manufacturers (Proprietary) Limited Wear resistant panel arrangement
US4819809A (en) * 1985-09-09 1989-04-11 Derrick Manufacturing Corporation Reinforced polyurethane vibratory screen
DE3544752C1 (de) * 1985-12-18 1990-12-06 Steinhaus Gmbh Verfahren zur Herstellung von Siebbauteilen unterschiedlicher Laenge fuer Systemsiebboeden und Siebbauteil
EP0236530B1 (fr) * 1986-03-13 1989-10-18 Hein, Lehmann Aktiengesellschaft Panneau de criblage
US4857176A (en) * 1986-08-04 1989-08-15 Derrick Manufacturing Corporation Reinforced molded polyurethane vibratory screen
DE3732031C3 (de) * 1987-06-26 1994-12-15 Steinhaus Gmbh Systemsiebboden mit einer Vielzahl auswechselbarer Siebelemente
US4960510A (en) * 1987-06-26 1990-10-02 Steinhaus Gmbh Screening apparatus having a screen grid with a plurality of exchangeable screen elements
AU601052B2 (en) * 1987-09-26 1990-08-30 Polydeck Screen Corporation Screening arrangement
GB2210292B (en) * 1987-09-26 1991-07-03 Polydeck Screen Corp Screening panels and screen decks
US4863597A (en) * 1988-04-19 1989-09-05 W. S. Tyler, Incorporated Dewatering device with screen assembly having releasable fastening means
US4909929A (en) * 1988-10-24 1990-03-20 Norris Screen & Manufacturing, Inc. Interlocking clamping system
EP0419585B1 (fr) * 1988-11-23 1995-07-26 Western Wire Works, Incorporated Systeme modulaire
US5049262A (en) * 1988-11-23 1991-09-17 Galton Zanley F Modular system
US5213217A (en) * 1991-10-25 1993-05-25 Galton Zanley F Screening system and method for screening particulate material
DE4141823C2 (de) * 1991-12-18 1994-12-15 Mann & Hummel Filter Flüssigkeitsfilter
US5385242A (en) * 1993-02-17 1995-01-31 Freissle; Manfred F. A. Screening arrangement
DE69425435T2 (de) * 1993-05-25 2001-03-22 Nordson Corp Pulverbeschichtungssystem
US5755334A (en) * 1996-03-19 1998-05-26 Illinois Tool Works Inc. Method and apparatus for mounting a panel on a support member
AUPO213796A0 (en) * 1996-09-05 1996-09-26 Lettela Proprietary Limited Modular screen panel
US6258261B1 (en) * 1998-08-31 2001-07-10 Mse Technology Applications, Inc. Honeycomb cell structure for fluid-solid reactor
US6206200B1 (en) 1999-01-19 2001-03-27 United States Filter Corporation Mounting system for modular panels used in a screen deck
US6634505B1 (en) * 1999-04-26 2003-10-21 Durex Products, Inc. Sieve bed for a sifting machine
DE19918824B4 (de) * 1999-04-26 2005-12-22 Gummi Küper GmbH & Co KG Siebboden für eine Siebmaschine
CA2375105C (fr) 1999-05-31 2008-09-09 David Llewellen Owen Ecrans
US6267246B1 (en) * 2000-02-14 2001-07-31 Western Wire Works, Inc. Screening system for screening or diverting particulate material
US6957741B2 (en) * 2001-08-07 2005-10-25 Manfred Franz Axel Freissle Screening arrangement
AU2006243879B2 (en) * 2006-11-28 2011-07-07 Flsmidth A/S A screening module retaining assembly
DE102018205997B4 (de) * 2018-04-19 2021-08-19 Thyssenkrupp Ag Siebsystem mit genuteten Traversen
EP4101549A1 (fr) * 2021-06-07 2022-12-14 Sandvik SRP AB Panneau de criblage à monter sur une surface criblante et matériaux de criblage en vrac
BR102022018749A2 (pt) * 2022-09-19 2023-02-07 Haver & Boecker Telas Ltda Telas modulares aperfeiçoadas constituintes de componente peneira vibratória que integra equipamento de classificação cúbica e lamelar de material oriundo de atividade de mineração, sistema de fixação solidária entre unidades adjacentes de telas modulares aperfeiçoadas à base estrutural de componente peneira vibratória e procedimento de montagem/desmontagem a essa base

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19860612A1 (de) * 1998-12-29 2000-07-06 Ludwig Krieger Draht Und Kunst Siebbelag für Schwingsiebe
DE19860612B4 (de) * 1998-12-29 2007-04-12 Ludwig Krieger Draht- Und Kunststofferzeugnisse Gmbh Siebbelag für Schwingsiebe

Also Published As

Publication number Publication date
AU546016B2 (en) 1985-08-08
ZA804039B (en) 1981-06-24
BR8008965A (pt) 1981-10-20
US4409099A (en) 1983-10-11
EP0036858A1 (fr) 1981-10-07
AU6120780A (en) 1981-02-03
DE2926987B1 (de) 1981-01-15
WO1981000065A1 (fr) 1981-01-22
CA1148503A (fr) 1983-06-21

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