EP2594344A1 - Side wall seal of a screening machine - Google Patents

Side wall seal of a screening machine Download PDF

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Publication number
EP2594344A1
EP2594344A1 EP12005862.3A EP12005862A EP2594344A1 EP 2594344 A1 EP2594344 A1 EP 2594344A1 EP 12005862 A EP12005862 A EP 12005862A EP 2594344 A1 EP2594344 A1 EP 2594344A1
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EP
European Patent Office
Prior art keywords
sealing part
wall
polyurethane
part according
flange
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.)
Granted
Application number
EP12005862.3A
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German (de)
French (fr)
Other versions
EP2594344B1 (en
Inventor
Matthias Sattler
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.)
Isenmann Siebe GmbH
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Isenmann Siebe GmbH
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Publication date
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Priority to PL12005862T priority Critical patent/PL2594344T3/en
Publication of EP2594344A1 publication Critical patent/EP2594344A1/en
Application granted granted Critical
Publication of EP2594344B1 publication Critical patent/EP2594344B1/en
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    • 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

Abstract

The side wall seal has frustum-shaped wall (1) made of polyurethane material. A seal dividing section (2) is provided at an external end of the wall. An annular flange (3) is provided in opposite end of the wall. The annular flange is provided with a ring (5) made of polyurethane elastic material. The hardness of the polyurethane material of the ring is greater than the hardness of the polyurethane material of the frustum-shaped wall.

Description

Die Erfindung betrifft ein flexibles Abdichtungsteil für ein Profil in der Öffnung einer Seitenwand einer Siebmaschine, wobei das hohle Abdichtungsteil einen in oder an der Öffnung befestigbaren Flansch aufweist, von dem die Wand des Abdichtungsteils nach außen verjüngend sich zu einem Abdichtungsteilende erstreckt, das mantelförmig das Profil abdichtend umgibt.The invention relates to a flexible sealing part for a profile in the opening of a side wall of a screening machine, wherein the hollow sealing part has a flange which can be fastened in or on the opening, from which the wall of the sealing part tapers outwardly to a sealing part end, the profile in the form of a jacket sealingly surrounding.

Bei Siebmaschinen ist es oft erforderlich, das Siebgut zu befeuchten. Hierzu werden Brauserohre über der Siebfläche waagerecht angeordnet, die durch die Siebmaschinen-Seitenwände hindurchgeführt werden. Die für diese Durchführungen in den Seitenwänden erforderlichen Öffnungen müssen abgedichtet werden. Hierzu ist es bekannt, in der Öffnung einen Faltenbalg aus Gummi zu befestigen, der an einem am Rand der Öffnung umgebenden Vorsprung durch eine Schelle befestigt ist und nach außen vorsteht und in einem Abdichtungsteil endet, das wiederum durch eine Schelle außen am Rohr der Brauseleitung befestigt ist. Ein solcher Faltenbalg hat eine verhältnismäßig geringe Standzeit, um die Relativbewegung zwischen der sich schwingend bewegenden Siebmaschine und der statisch stehenden Bebrausung aufzunehmen, zumal in den Falten des Balges sich Material absetzt, das zusätzlich auf die Balginnenwand reibt und damit früh zerstört.In screening machines, it is often necessary to moisten the screenings. For this purpose, shower tubes are arranged horizontally above the sieve surface, which are passed through the sieve machine side walls. The openings required for these bushings in the side walls must be sealed. For this purpose, it is known to fasten in the opening a bellows made of rubber, which is secured to a protrusion surrounding the edge of the opening by a clamp and projects outwardly and ends in a sealing part, which in turn secured by a clamp outside the pipe of the shower line is. Such a bellows has a relatively short service life to accommodate the relative movement between the oscillating moving screening machine and the static Bebrausung, especially in the folds of the bellows material deposits, which rubs in addition to the inner wall of the bellows and thus destroyed early.

Aufgabe der Erfindung ist es, ein flexibles Abdichtungsteil der eingangs genannten Art zu schaffen, das bei hoher Dichtigkeit, Standzeit und Flexibilität ein Absetzen von Materialien verhindert.The object of the invention is to provide a flexible sealing part of the type mentioned, which prevents settling of materials with high density, durability and flexibility.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst,

  • dass es sich nach außen hin verjüngt,
  • dass es aus einem elastischen Material vorzugsweise aus Polyurethan besteht, und
  • dass das Polyurethan des Flansches eine größere Härte aufweist als das Polyurethan der kegelstumpfförmigen Wand.
This object is achieved according to the invention
  • that it tapers to the outside,
  • that it consists of an elastic material, preferably made of polyurethane, and
  • that the polyurethane of the flange has a greater hardness than the polyurethane of the frustoconical wall.

Ein solches Abdichtungsteil besitzt eine hohe Standzeit, da zum einen sich Materialien innerhalb des Abdichtungsteils nicht absetzen können, sondern stets sich zurück zur Siebfläche sich bewegen und zum anderen, der Befestigungsflansch in der Öffnung der Seitenwand aufgrund seiner größeren Härte dort einen besonders sicheren Halt besitzt und einer höheren Abnutzung nicht unterliegt. Damit ist bei hoher Dichtigkeit und Flexibilität eine hohe Standzeit der Abdichtung gegeben.Such a sealing part has a long service life, since on the one hand materials can not settle within the sealing member, but always move back to the screen surface and on the other hand, the mounting flange in the opening of the side wall because of its greater hardness there has a particularly secure grip and not subject to higher wear. This is given a high durability of the seal with high density and flexibility.

Hierzu ist auch von Vorteil, wenn das Polyurethan des das Profil umfassenden Abdichtungsteilendes eine größere Härte aufweist als das Polyurethan der kegelstumpfförmigen Wand. Dabei wird vorgeschlagen, dass das Polyurethan des Flansches eine Shore-Härte A von 60 bis 100 insbesondere von ca. 95 und die Wand eine Shore-Härte A von 35 bis 55 insbesondere von ca. 45 aufweist.For this purpose, it is also advantageous if the polyurethane of the sealing part end comprising the profile has a greater hardness than the polyurethane of the frustoconical wall. It is proposed that the polyurethane of the flange has a Shore A hardness of 60 to 100 in particular of about 95 and the wall has a Shore A hardness of 35 to 55, in particular of about 45.

Von Vorteil ist, wenn die Wand des Abdichtungsteils die Form eines hohlen Kegelstumpfes aufweist.It is advantageous if the wall of the sealing part has the shape of a hollow truncated cone.

Die Flexibilität des Abdichtungsteiles wird erhöht, wenn die kegelstumpfförmige Wand eine oder mehrere ringförmige stufenförmige Faltung/en bzw. Stufen aufweist. Hierbei können die stufenförmige(n) Faltung/en bzw. Stufen einen Z-förmigen Querschnitt aufweisen, so dass sichergestellt ist, dass Materialien innerhalb des Abdichtungsteils sich nicht festsetzen können. Hierzu wird auch vorgeschlagen, dass alle innenliegenden Stufenflächen zum Flansch hingeneigt sind.The flexibility of the sealing member is increased when the frusto-conical wall has one or more annular step-like folds. In this case, the step-shaped (s) folding / s or steps may have a Z-shaped cross-section, so that it is ensured that materials can not settle within the sealing part. This will also be proposed that all internal step surfaces are inclined to the flange.

Ein besonders sicherer Halt in der Öffnung der Seitenwand und eine leichte Befestigung werden erreicht, wenn an dem Flansch auf der der Wand abgewandten Seite ein in der Öffnung der Siebmaschinen-Seitenwand einliegender Ring aus Polyurethan angeformt insbesondere miteinander vergossen ist, der eine äußere koaxiale Ringnut bildet, in der der Rand der Öffnung der Siebmaschinen-Seitenwand einrastend einliegt. Hierbei kann der Ring die Shore-Härte A des Flansches aufweisen.A particularly secure hold in the opening of the side wall and a slight attachment are achieved when molded on the flange on the side facing away from the wall, a molded in the opening of the screening machine side wall ring of polyurethane molded in particular with each other, which forms an outer coaxial annular groove in which the edge of the opening of the screening machine side wall rests latching. Here, the ring may have the Shore hardness A of the flange.

Vorzugsweise wird vorgeschlagen, dass das Profil ein wasserführendes Rohr insbesondere ein Brauserohr ist, durch das Wasser auf das Siebgut aufgebracht wird.Preferably, it is proposed that the profile is a water-carrying pipe, in particular a shower pipe, is applied by the water to the screenings.

Zwei Ausführungsbeispiele der Erfindung sind in den Zeichnungen dargestellt und werden im Folgenden näher beschrieben. Es zeigen

Fig. 1
das erfindungsgemäße Abdichtungsteil zur Hälfte im axialen Schnitt und
Fig. 2
das Abdichtungsteil nach Fig. 1 mit einer zusätzlichen ringförmigen, stufenförmigen Faltung mit Z-förmigem Querschnitt.
Two embodiments of the invention are illustrated in the drawings and will be described in more detail below. Show it
Fig. 1
the sealing member according to the invention in half in axial section and
Fig. 2
the sealing part after Fig. 1 with an additional annular step-shaped fold of Z-shaped cross-section.

Das erfindungsgemäße Abdichtungsteil weist eine kegelstumpfförmige Wand 1 auf, die am äußeren Ende in ein zylindrisches Abdichtungsteilende 2 ausläuft. Dieses Abdichtungsteilende liegt außen auf einem wasserführenden Rohr insbesondere einem Brauserohr einer Siebmaschine auf und ist vorzugsweise durch eine außen aufliegende Schelle befestigt.The sealing part according to the invention has a frusto-conical wall 1, which terminates at the outer end in a cylindrical sealing part end 2. This sealing part end rests on the outside of a water-carrying pipe, in particular a shower pipe of a screening machine, and is preferably fastened by an externally resting clamp.

Das gegenüberliegende Ende der Wand 1 ist zu einem runden oder eckigen ringförmigen Flansch 3 geformt, der beim weiteren Gießprozess mit einem härteren Polyurethan in Form als Ring 5 einteilig vergossen ist, der innerhalb der insbesondere kreisförmigen Öffnung 6 der Seitenwand einliegt.The opposite end of the wall 1 is formed into a round or angular annular flange 3, which is cast in one piece during the further casting process with a harder polyurethane in the form of a ring 5, which rests within the particular circular opening 6 of the side wall.

Der Ringteil 5 besitzt eine der Öffnung 6 in der Seitenwand 4 angepasste äußere ringförmige, geneigte Auflauffläche 7, die zum Befestigen des Abdichtungsteils in der Öffnung 6 in die Öffnung 6 eingesteckt wird, wobei die Auflauffläche 7 in einer koaxialen Ringnut 8 endet, in der die Öffnung 6 einrastet.The ring member 5 has an opening 6 in the side wall 4 adapted outer annular inclined ramp surface 7, which is inserted for securing the sealing member in the opening 6 in the opening 6, wherein the ramp surface 7 terminates in a coaxial annular groove 8, in which the Opening 6 engages.

Alle bisher beschriebenen Teile bestehen aus Kunststoff und vorzugsweise aus Polyurethan. Hierbei weist das Polyurethan des Flansches 3/5 und insbesondere auch des Flanschteiles Ring 5 eine größere Härte auf als das Polyurethan der kegelstumpfförmigen Wand 1. Vorzugsweise weist das Polyurethan des Flanschteiles 5 eine Shore-Härte A von 60 bis 100 insbesondere von ca. 95 und die Wand 1 eine Shore-Härte A von 35 bis 55 insbesondere von ca. 45 auf.All parts described so far are made of plastic and preferably polyurethane. In this case, the polyurethane of the flange 3/5 and in particular of the flange part ring 5 has a greater hardness than the polyurethane of the frustoconical wall 1. Preferably, the polyurethane of the flange 5 has a Shore A hardness of 60 to 100, in particular of about 95 and the wall 1 a Shore A hardness of 35 to 55, in particular of about 45 on.

Das Ausführungsbeispiel nach Fig. 2 unterscheidet sich von dem nach Fig. 1 dadurch, dass die kegelstumpfförmige Wand 1 eine Stufe 9 bildet, deren Stufenfläche 10 nach innen gerichtet ist zum Flansch 3 hin, so dass die Stufenfläche 10 eine Neigung aufweist, die sicher verhindert, dass im Bereich dieser Stufe sich Siebmaterial absetzen kann. Statt einer einzigen Stufe 9 kann die Wand 1 auch zwei oder mehr Stufen bilden.The embodiment according to Fig. 2 is different from that Fig. 1 in that the frusto-conical wall 1 forms a step 9 whose step surface 10 is directed inwards towards the flange 3, so that the step surface 10 has a slope which reliably prevents sieve material from settling in the region of this step. Instead of a single step 9, the wall 1 may also form two or more stages.

Claims (10)

Flexibles Abdichtungsteil für ein Profil in der Öffnung einer Seitenwand einer Siebmaschine, wobei das hohle Abdichtungsteil einen in oder an der Öffnung befestigbaren Flansch (3, 5) aufweist, von dem die Wand (1) des Abdichtungsteils nach außen verjüngend sich zu einem Abdichtungsteilende (2) erstreckt, das ringförmig das Profil abdichtend umgibt, dadurch gekennzeichnet, - dass es sich nach außen hin verjüngt, - dass es aus einem elastischen Kunststoff-Material vorzugsweise Polyurethan besteht, und - dass das Polyurethan des Flanschteiles (5) eine größere Härte aufweist als das Polyurethan der kegelstumpfförmigen Wand (1). A flexible sealing member for a profile in the opening of a side wall of a sifting machine, the hollow sealing member having a flange (3, 5) securable in or on the opening, from which the wall (1) of the sealing member tapers outwardly to a sealing member end (2 ) which annularly surrounds the profile in a sealing manner, characterized - that it tapers to the outside, - That it consists of an elastic plastic material, preferably polyurethane, and - That the polyurethane of the flange (5) has a greater hardness than the polyurethane of the frusto-conical wall (1). Abdichtungsteil nach Anspruch 1, dadurch gekennzeichnet, dass das Polyurethan des das Profil umfassenden Abdichtungsteilendes (2) eine größere Härte aufweist als das Polyurethan der kegelstumpfförmigen Wand (1).Sealing part according to claim 1, characterized in that the polyurethane of the sealing part end (2) comprising the profile has a greater hardness than the polyurethane of the frusto-conical wall (1). Abdichtungsteil nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das Polyurethan des Flanschteiles (5) eine Shore-Härte A von 60 bis 100 insbesondere von ca. 95 und die Wand (1) eine Shore-Härte A von 35 bis 55 insbesondere von ca. 45 aufweist.Sealing part according to Claim 1 or 2, characterized in that the polyurethane of the flange part (5) has a Shore hardness A of 60 to 100, in particular of approximately 95, and the wall (1) has a Shore hardness A of 35 to 55, in particular of approx 45. Abdichtungsteil nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass die Wand (1) des Abdichtungsteils die Form eines hohlen Kegelstumpfes aufweist.Sealing part according to one of the preceding claims, characterized in that the wall (1) of the sealing part has the shape of a hollow truncated cone. Abdichtungsteil nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass die kegelstumpfförmige Wand (1) eine oder mehrere ringförmige stufenförmige Faltung/en bzw. Stufen (9) aufweist.Sealing part according to one of the preceding claims, characterized in that the frusto-conical wall (1) has one or more annular step-shaped folds or steps (9). Abdichtungsteil nach Anspruch 5, dadurch gekennzeichnet, dass die stufenförmige(n) Faltung/en bzw. Stufen (9) einen Z-förmigen Querschnitt aufweist/en.Sealing part according to claim 5, characterized in that the step-like fold (s) or steps (9) have a Z-shaped cross-section. Abdichtungsteil nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass alle innenliegenden Stufenflächen (10) zum Flansch (3) hingeneigt sind.Sealing part according to one of the preceding claims, characterized in that all internal step surfaces (10) are inclined to the flange (3). Abdichtungsteil nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass an dem zusammen vergossenen Flansch (3, 5) auf der der Wand (1) abgewandten Seite eine Auflauffläche (7) mit einer sich daran anschließenden äußeren koaxialen Ringnut (8) befindet, die in dem Öffnungsrand der Öffnung (6) der Siebmaschinen-Seitenwand (4) einrastend einliegt.Sealing part according to one of the preceding claims, characterized in that on the side of the cast-off flange (3, 5) on the side facing away from the wall (1) is a ramp surface (7) with an adjoining outer coaxial annular groove (8), in the opening edge of the opening (6) of the screening machine side wall (4) engages latching. Abdichtungsteil nach Anspruch 8, dadurch gekennzeichnet, dass der Ring (5) die Shore-Härte des Flansches (3) aufweist.Sealing part according to claim 8, characterized in that the ring (5) has the Shore hardness of the flange (3). Abdichtungsteil nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass das Profil ein wasserführendes Rohr insbesondere ein Brauserohr ist, durch das Wasser auf das Siebgut aufgebracht wird.Sealing part according to one of the preceding claims, characterized in that the profile is a water-carrying pipe, in particular a shower pipe, is applied by the water to the screenings.
EP12005862.3A 2011-11-21 2012-08-14 Side wall seal of a screening machine Active EP2594344B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL12005862T PL2594344T3 (en) 2011-11-21 2012-08-14 Side wall seal of a screening machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102011118948A DE102011118948A1 (en) 2011-11-21 2011-11-21 Sidewall seal of a screening machine

Publications (2)

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EP2594344A1 true EP2594344A1 (en) 2013-05-22
EP2594344B1 EP2594344B1 (en) 2014-04-30

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DE (1) DE102011118948A1 (en)
ES (1) ES2472723T3 (en)
PL (1) PL2594344T3 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE532733C (en) * 1930-06-01 1931-09-05 Schneider Jaquet & Cie A G Seal for the vibrating conveyor troughs of semolina and vapor cleaning machines
EP0284296A2 (en) * 1987-03-23 1988-09-28 Rotex, Inc. Flexible connector for screening machine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4116824A (en) * 1976-11-12 1978-09-26 Armour Pharmaceutical Company Automated wet sieving apparatus
US5931310A (en) * 1997-06-14 1999-08-03 Duggan; John C. Vibrating screen flooded deck support structure

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE532733C (en) * 1930-06-01 1931-09-05 Schneider Jaquet & Cie A G Seal for the vibrating conveyor troughs of semolina and vapor cleaning machines
EP0284296A2 (en) * 1987-03-23 1988-09-28 Rotex, Inc. Flexible connector for screening machine

Also Published As

Publication number Publication date
ES2472723T3 (en) 2014-07-02
DE102011118948A1 (en) 2013-05-23
PL2594344T3 (en) 2014-09-30
EP2594344B1 (en) 2014-04-30

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