EP0774299B1 - Dispositif d'étanchéité pour capot protecteur d'un broyeur tubulaire - Google Patents

Dispositif d'étanchéité pour capot protecteur d'un broyeur tubulaire Download PDF

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Publication number
EP0774299B1
EP0774299B1 EP96116398A EP96116398A EP0774299B1 EP 0774299 B1 EP0774299 B1 EP 0774299B1 EP 96116398 A EP96116398 A EP 96116398A EP 96116398 A EP96116398 A EP 96116398A EP 0774299 B1 EP0774299 B1 EP 0774299B1
Authority
EP
European Patent Office
Prior art keywords
ring
sealing
protective hood
seal
track
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 - Lifetime
Application number
EP96116398A
Other languages
German (de)
English (en)
Other versions
EP0774299A1 (fr
Inventor
Mark Rypalla
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.)
A Friedrich Flender AG
Original Assignee
A Friedrich Flender 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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7777521&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0774299(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by A Friedrich Flender AG filed Critical A Friedrich Flender AG
Publication of EP0774299A1 publication Critical patent/EP0774299A1/fr
Application granted granted Critical
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/18—Details
    • B02C17/181—Bearings specially adapted for tumbling mills
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S277/00—Seal for a joint or juncture
    • Y10S277/903—Seal for rotating kiln or drum

Definitions

  • the invention relates to a device for oil-impermeable Sealing a stationary protective hood against a rotating one Mill body with the features of the preamble of the claim 1.
  • the known oil-impermeable seals for tube mills correspond in structure to the Radial shaft seals.
  • a sharp-edged seal Sealing lip the stationary protective hood against the rotating Tube mill jacket or a correspondingly designed surface a ring gear surrounding the tube mill.
  • the high Temperatures at the mill jacket and the heavy dust accumulation during of the grinding process lead to embrittlement of the elastic Sealing material (Perbunan) and, as a result, to failure the seal.
  • US-A-4 966 471 there is a sealing arrangement for the neck bearing described a tube mill.
  • This sealing arrangement contains one sealing ring made of a fibrous material, which by is enclosed in a band, which in turn is surrounded by a rope is surrounded by the springs to hold the felt ring in Hold the sealing position on the tread.
  • the retaining ring is the sealing ring on the side of an oil drip pan held.
  • Two such oil sumps are on both sides arranged of the camp and extend over 180 ° around the lower half of the mill neck.
  • the invention is therefore based on the object Generic device for sealing a mill body to design such that the seal is easy in the Construction and assembly is inexpensive and that Materials with a long service life can be used.
  • the tube mill consists of a mill body with a cylindrical shell 1 and a conical end wall 2, the both on the inside with a wear-resistant lining are provided.
  • a mill neck 3 On the end wall 2 is a mill neck 3 connected to the feeding of the material to be shredded and / or the removal of the ground material with the help of a hot Air flow serves.
  • the jacket 1 is surrounded by two races 4, each are attached to the jacket 1 via a web 5.
  • the race 4 is stored on oil-lubricated, not shown sliding shoes.
  • the rotating mill body is driven, as usual, by a motor, the output shaft of which carries a pinion, the into a jacket 1 surrounding the jacket 1 fixed ring gear engages.
  • the race 4 with the Sliding shoe storage or the gear rim is of a fixed Protective hood 6 enclosed.
  • This sealing system consists of one or more fixed sealing cords 7 a wear-resistant and temperature-resistant material.
  • the Sealing cord 7 or sealing cords 7 slide on one machined career 8, which according to FIG. 2 on the jacket 1st is formed.
  • the sealing cord 7 is on a compressible ring 9 supported, the required for the sealing effect Contact pressure generated.
  • the compressible ring 9 is also similar Concentricity error when running as a radial seal (Fig. 2) and axial runout in the design as an axial seal (Fig. 3) off.
  • a one-part or multi-part retaining ring 10 is by means of screws 11 attached to the protective hood 6 and in this way holds the compressible ring 9 and the sealing cord 7 on the protective hood 6.
  • the retaining ring 10 bounded in connection with part of the Side wall of the protective hood 6 an expansion space in which the compressible ring 9 held under constant tension and is protected from external influences.
  • Between the rotating Career 8 and the stationary retaining ring 10 and the stationary Protective hood 6 is kept as narrow a gap as possible prevents the sealing cord 7 from oozing out to the side.
  • On the other side, not shown, of the race 8 is one similar seal arranged.
  • a brush ring 12 is fastened via the screws 11, whose brushes 13 touch the jacket 1. This brush ring 12 protects the seal against the coarsest dirt from outside and against hard deposits that damage the sealing cord 7 could.
  • the tube mill shown in the drawing rotates by one horizontal axis of rotation.
  • the invention is also for Tube mills with a vertical axis of rotation applicable.
  • FIG. 2 shows a radial seal with a parallel to the axis of rotation 8.
  • the Sealing can be designed in the same way as an axial seal become. Such an axial seal is shown in FIG. 3 shown.
  • the machined one Raceway 8 to apply the sealing cord 7 perpendicular to The axis of rotation of the mill body is laid on the web 5, which carries the race 4.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
  • Sealing Devices (AREA)

Claims (4)

  1. Dispositif d'étanchéification imperméable à l'huile d'un capot de protection (6) stationnaire par rapport à un corps de broyeur en rotation, une bague d'étanchéité stationnaire étant pressée par l'intermédiaire d'une bague précontrainte (9) contre une voie de roulement (8) formée sur le corps de broyeur et tournant avec le corps de broyeur, et une bague de maintien (10) étant assemblée avec le capot de protection (6), caractérisé en ce que la bague d'étanchéité stationnaire est formée d'au moins un cordon d'étanchéité (7), que la bague précontrainte (9) est compressible, que la bague de maintien (10) délimite avec une partie de la paroi latérale du capot de protection (6) un espace de dilatation pour le cordon d'étanchéité (7) et pour la bague compressible (9), dans lequel la bague compressible (9) est maintenue sous précontrainte permanente, et qu'une fente étroite, qui empêche une sortie latérale du cordon d'étanchéité (7), est respectée entre la bague de maintien (10) et le capot de protection (6) d'une part et la voie de roulement (8) d'autre part.
  2. Dispositif suivant la revendication 1, caractérisé en ce qu'une bague à brosses (12), dont les brosses (13) s'appliquent sur la voie de roulement (8), est assemblée avec la bague de maintien (10) sur le côté du cordon d'étanchéité (7) opposé au capot de protection (6).
  3. Dispositif suivant l'une des revendications 1 et 2, caractérisé en ce que la voie de roulement (8) est disposée parallèlement à l'axe de rotation horizontal ou vertical du corps de broyeur, et que l'étanchéité est réalisée en tant que joint d'étanchéité radial.
  4. Dispositif suivant l'une des revendications 1 et 2, caractérisé en ce que la voie de roulement (8) est disposée perpendiculairement à l'axe de rotation horizontal ou vertical du corps de broyeur, et que l'étanchéité est réalisée en tant que joint d'étanchéité axial.
EP96116398A 1995-11-15 1996-10-12 Dispositif d'étanchéité pour capot protecteur d'un broyeur tubulaire Expired - Lifetime EP0774299B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19542563 1995-11-15
DE19542563A DE19542563A1 (de) 1995-11-15 1995-11-15 Vorrichtung zur Abdichtung einer Schutzhaube eines Mühlenkörpers

Publications (2)

Publication Number Publication Date
EP0774299A1 EP0774299A1 (fr) 1997-05-21
EP0774299B1 true EP0774299B1 (fr) 2001-12-12

Family

ID=7777521

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96116398A Expired - Lifetime EP0774299B1 (fr) 1995-11-15 1996-10-12 Dispositif d'étanchéité pour capot protecteur d'un broyeur tubulaire

Country Status (4)

Country Link
US (1) US5769428A (fr)
EP (1) EP0774299B1 (fr)
DE (2) DE19542563A1 (fr)
DK (1) DK0774299T3 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19645163C2 (de) * 1996-11-02 2000-10-05 Mtu Muenchen Gmbh Bürstendichtung für Rotor-Stator-Anordnung
DE60144120D1 (de) 2000-07-10 2011-04-07 Uni Charm Corp Gegenstand zum Reinigen
US6679500B1 (en) * 2002-09-25 2004-01-20 Alstom (Switzerland) Ltd Coal pulverizer brush seal assembly
DE20302000U1 (de) * 2003-02-08 2004-07-08 Vta Verfahrenstechnik Und Automatisierung Gmbh Ring-Dichtungsanordnung für einen indirekt beheizten Drehrohrofen
DE10305147B4 (de) * 2003-02-08 2005-03-17 Vta Verfahrenstechnik Und Automatisierung Gmbh Drehrohrofen mit Längsabdichtung des Beheizungstunnels sowie Verfahren zum Herstellen einer solchen Längsabdichtung
US7686612B1 (en) 2006-12-28 2010-03-30 Barry Buteau Rotary kiln seal
CN102580825A (zh) * 2012-02-27 2012-07-18 南京凯盛国际工程有限公司 一种磨机密封压紧装置
CN103899757A (zh) * 2014-04-08 2014-07-02 蓝小玲 一种回转筒密封装置
CN103990516B (zh) * 2014-05-14 2016-06-22 洛阳诚创耐磨材料有限公司 矿用磨机给料管外密封装置
CN104074976A (zh) * 2014-06-28 2014-10-01 山东省章丘鼓风机股份有限公司 一种带有新型密封装置的球破机大齿轮罩

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE491748C (de) * 1930-02-14 Maschb Anstalt Humboldt Dichtungsvorrichtung fuer den Ein- oder Austrittsstutzen von Rohrmuehlen
DE590792C (de) * 1931-08-19 1934-01-09 Fried Krupp Grusonwerk Akt Ges Rohrmuehle
US2441901A (en) * 1946-02-09 1948-05-18 Smidth & Co As F L Mill
DE1028858B (de) * 1955-02-26 1958-04-24 Miag Muehlenbau & Ind Gmbh Kippbewegliches Gleitlager zur Lagerung hohler Tragzapfen von Rohrmuehlen
US3051399A (en) * 1959-11-10 1962-08-28 Nordberg Manufacturing Co Grinding mill trunnion
GB1413853A (en) * 1972-11-03 1975-11-12 Stromsholmens Mek Verkstad Sealing device
DE2741738C3 (de) * 1977-09-16 1981-04-02 Smit Ovens Nijmegen B.V., Nijmegen Stirn-Mantelgleitdichtung zwischen einer ortsfesten Haube und einem Drehrohrofenende
GB2098712A (en) * 1981-05-18 1982-11-24 Philips Electronic Associated Air seal for tumbler drier door
DE3433905A1 (de) * 1984-09-14 1986-03-27 Krupp Polysius Ag, 4720 Beckum Drehtrommel
US4804195A (en) * 1986-12-29 1989-02-14 Parker Thomas H High temperature sealing device
US4966471A (en) * 1990-01-08 1990-10-30 Foster Wheeler Energy Corporation Trunnion bearing dust seal
GB2239925A (en) * 1990-01-11 1991-07-17 Dowty Seals Ltd Seals
DE4031928C2 (de) * 1990-10-09 2000-09-21 Babcock Energie Umwelt Rohrmühle
DE4140388C2 (de) * 1991-12-07 2002-04-18 Babcock Energie Umwelt Rohrmühle
US5425543A (en) * 1993-09-17 1995-06-20 Buckshaw; Dennis J. Seal assembly for rotating shaft
US5647598A (en) * 1995-07-19 1997-07-15 Vaudolon; Jean-Pierre Stuffing box seal having braided packings and lip seal rings in combination with a shaft sleeve

Also Published As

Publication number Publication date
DE19542563A1 (de) 1997-05-22
DE59608433D1 (de) 2002-01-24
DK0774299T3 (da) 2002-04-02
US5769428A (en) 1998-06-23
EP0774299A1 (fr) 1997-05-21

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