EP0233448B1 - Tambour rotatif - Google Patents

Tambour rotatif Download PDF

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Publication number
EP0233448B1
EP0233448B1 EP87100078A EP87100078A EP0233448B1 EP 0233448 B1 EP0233448 B1 EP 0233448B1 EP 87100078 A EP87100078 A EP 87100078A EP 87100078 A EP87100078 A EP 87100078A EP 0233448 B1 EP0233448 B1 EP 0233448B1
Authority
EP
European Patent Office
Prior art keywords
chamber
rotary drum
circular flange
longitudinally
rollers
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
EP87100078A
Other languages
German (de)
English (en)
Other versions
EP0233448A2 (fr
EP0233448A3 (en
Inventor
Lothar Kostrzewa-Kock
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.)
Cessione noell Service und Maschinentechnik GmbH
Original Assignee
Salzgitter Maschinenbau 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 Salzgitter Maschinenbau GmbH filed Critical Salzgitter Maschinenbau GmbH
Priority to AT87100078T priority Critical patent/ATE73924T1/de
Publication of EP0233448A2 publication Critical patent/EP0233448A2/fr
Publication of EP0233448A3 publication Critical patent/EP0233448A3/de
Application granted granted Critical
Publication of EP0233448B1 publication Critical patent/EP0233448B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B11/00—Machines or apparatus for drying solid materials or objects with movement which is non-progressive
    • F26B11/02—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles
    • F26B11/024—Arrangements for gas-sealing the drum
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
    • F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
    • F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
    • F27B7/22—Rotary drums; Supports therefor
    • F27B7/24—Seals between rotary and stationary parts

Definitions

  • the invention relates to a sealing connection between the longitudinally mounted end of the rotary drum of a rotary kiln, drum dryer or the like and the chamber surrounding this end, for.
  • B. loading chamber which consists of a fixed part and a part connected to it via a compensator, mounted in a longitudinally movable part, which has a radial ring flange which, together with a corresponding ring flange of the rotary drum and sealing rings provided between them, seals the chamber to the outside, wherein a radial ring flange arranged on the end of the rotary drum facing the chamber acts on the longitudinally movable part of the chamber such that it is displaced in accordance with the longitudinal movements of the rotary drum end.
  • the invention has for its object to avoid these disadvantages and to find a design in which the movement is not transmitted via sealing rings, so that the sealing can be done only by lip sealing rings, the resulting changes in distance caused by the wobbling movements of the radial ring flange arranged on the rotating drum end can compensate for the two ring flanges used for sealing and therefore always bring about a good seal.
  • an additional radial annular flange is provided on the rotary drum end in addition to the radial annular flange which serves for sealing, the sliding blocks encompassing it or rollers and a rail carrying this is connected to the displaceable part of the chamber, and that one or more lip sealing rings are provided between the two ring flanges serving to seal the outside.
  • such a connection is provided between the additional ring flange and the longitudinally movable part of the chamber at two diametrically opposite positions of the rotary drum. This is best done on both sides of the rotating drum, because the rails can then be connected to the two claws with which the longitudinally movable chamber part is slidably mounted in a known manner on a support frame arranged on both sides of the rotating drum.
  • the arrangement is also advantageous because the additional ring flange makes the least wobble at these points.
  • each rail encompasses the ring flange with a play that corresponds to the existing or occurring wobble of the ring flange. This prevents the longitudinally movable part of the chamber from following every small axial movement which is caused by a wobble of the ring flange, which is practically unavoidable given the size of the rotating drum diameter, with each drum revolution.
  • the sliding blocks or rollers on the rail are adjustable.
  • the longitudinally movable part of the chamber on the support frame is not only slidably - as is known - in the longitudinal direction of the rotating drum, but also transversely thereto, so that the storage can also correspond to the changes in diameter of the chamber part, which at considerable size of the drum diameter and thus also the chamber of up to 3 meters must be taken into account.
  • the claws are arranged on the support frame with the interposition of one slide piece each, which can be displaced in the transverse direction and against the support frame in the longitudinal direction by means of grooves and springs.
  • the arrangement can also be made so that the slider against the claws in the longitudinal direction and against the support frame in the transverse direction is displaceable.
  • the claws and the support frame generally do not consist of a material that is suitable for sliding surfaces, it is advantageous if a further slide piece is provided between the slide piece on the one hand and the claws or the support frame on the other hand, which can be attached to the claw or is firmly connected to the support frame.
  • a spring running in the longitudinal direction of the rotary drum serves for this purpose, which engages upwards in a groove of a shoe fastened to it under the longitudinally movable chamber part with a radial play which takes thermal expansion into account and downwards in a corresponding groove in the supporting frame.
  • FIG. 1 shows the loading end of a tumble dryer, namely FIG. 1 in a side view and in FIG. 2 in a partial section along the line II-II in FIG. 1.
  • the rotary drum is labeled 1. It is slightly inclined against the horizontal and is rotatable about its longitudinal axis by means of races and roller stations (not shown). It protrudes with its end, not shown, into an outlet chamber, through which the moist drying gases are also drawn off, and with the illustrated end into a charging chamber 2, to which the inlet pipe 3 for the hot drying gases is connected. A pipe 4 leads into this, through which the material to be dried is given up.
  • the feed chamber 2 is well sealed with respect to the rotary drum 1.
  • lip-like sealing rings 24 are provided on a radial ring flange 25 of the rotary drum located in front of the end face of the chamber 2, which lie against a corresponding ring flange 23 of the chamber.
  • These sealing rings are not suitable for absorbing the axial movement which the rotary drum end carries out as a result of the temperature increase occurring at the start of operation from room temperature to up to 600 ° C. if the rotary drum is firmly supported in the axial direction at the other end.
  • the loading chamber 2 is therefore divided into two ring-shaped parts 5 and 6, which are interconnected by an elastic compensator 7 are connected.
  • the part 5 is axially fixed on a support frame 8, while the part 6 is mounted on the same frame via lateral claws 9 so that it can follow the axial movements of the rotary drum end.
  • a rail 19 parallel to the rotary drum axis is connected to the lateral claws 9 and carries two rollers 20, 21 on its end facing away from the loading chamber 2, which rollers can be rotated about axes extending transversely to the rotary drum axis are. They are arranged at a distance from one another so that an annular flange 22 fastened on the outside on the rotary drum 1 can circulate between the two rollers.
  • the displaceability of the chamber part 6 on the support frame is achieved in that three sliders 10, 11, 12 are arranged between the frame 8 and claws 9 arranged on both sides of the chamber part 6, of which the lowest, firmly connected to the frame 8 slider 10th is connected to the middle slide 11 via a spring 13 extending in the longitudinal direction of the rotary drum and engaging in grooves of these two slide pieces, so that these two slide pieces can only move in the longitudinal direction to one another, while the uppermost slide piece firmly connected to a claw 9 of the feed housing 12 is connected to the central slider 11 by means of springs 14 running in the transverse direction and engaging in the grooves of these two sliders, so that these two sliders can only move relative to one another in the transverse direction to the rotary drum 1.
  • the chamber part 6 cannot move arbitrarily in the transverse direction, it is held in its central position by a further guide device, which consists of a at the bottom of the chamber part 6 claw 15 and two sliders 16, 17, which are guided by means of a spring 18 engaging in the longitudinal grooves of the two sliders.
  • the upper slider is thus firmly connected to the claw 15 and the lower to the frame 8, the arrangement being such that the two sliders have a certain distance from one another even in the warm operating state, so that the support of the lateral claws 9 on the frame 8 is guaranteed.
  • the device works as follows: When the rotary drum 1 starts up, it is cold. The hot drying gases pass through the inlet pipe 3 of the feed chamber 2 into the rotary drum and through this to the outlet end, where they exit through the outlet chamber (not shown). The rotary drum heats up and expands in the direction of the feed end, since it is fixed in the axial direction at the outlet end.
  • the ring flange 22 comes to bear against the two rollers 20 and pushes the longitudinally movable part 6 of the loading chamber 2 and the radial ring flange 23 provided thereon, which serves as a contact surface for the sealing rings 24, by the same amount, via the rails 19, around which the ring flange 25 of the rotary drum 1 carrying the sealing rings 24 moves, so that the distance between the two ring flanges practically does not change and the sealing rings are not influenced by temperature changes.
  • the sliders are designed to be substantially longer than they are wide.
  • the ring bottle frees itself after reaching a steady operating state, the movable chamber part 6 remaining due to the weight-related frictional forces between the sliding surfaces, since no external forces act on it, except for the negligible ones Restoring force of the compensator.
  • the movements take place in the opposite way to the explanations for starting up.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Drying Of Solid Materials (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Discharging, Photosensitive Material Shape In Electrophotography (AREA)
  • Muffle Furnaces And Rotary Kilns (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)

Claims (6)

  1. Joint étanche entre l'extrémité longitudinalement mobile du tambour rotatif d'un four rotatif, d'un sécheur à tambour ou quelque chose de pareil et la chambre enfermant cette extrémité, par exemple une chambre d'alimentation qui consiste en une partie fixe reliée, par l'intermédiaire d'un compensateur, à une partie longitudinalement mobile présentant un collier radial qui, en concours avec un collier correspondant du tambour rotatif et des bagues d'étanchéité prévues entre ces colliers, assure l'étanchéité de la chambre vers l'extérieur, un collier radial disposé à l'extrémité longitudinalement mobile du tambour rotatif influançant la partie longitudinalement mobile de la chambre de telle manière que cette partie se déplace de manière correspondante aux mouvements longitudinaux de cette extrémité du tambour rotatif,
    caractérisé en ce que, pour ce collier dernièrement mentionné disposé à l'extrémité du tambour rotatif outre le collier (25) servant à l'étanchéité, est prévu un collier radial supplémentaire (22) qui est relié, par l'intermédaire de glisseurs ou de rouleaux (20, 21) qui l'enferment et d'une coulisse (19) portant les glisseurs ou les rouleaux, à la partie mobile (6) de la chambre (5, 6, 7) et en ce qu'une ou plusieures bagues à lèvres (24) sont prévues entre les deux colliers (23, 25) servant à l'étanchéité vers l'extérieur.
  2. Joint selon la revendication 1, caractérisé en ce que les deux glisseurs ou rouleaux (20, 21) de chaque coulisse (19) enferment le collier (22) avec un certain jeu correspondant au chancellement du collier pendant la rotation du tambour.
  3. Joint selon la revendication 2, caractérisé en ce que les glisseurs ou les rouleaux (20, 21) sont disposés de manière ajustable à la coulisse.
  4. Joint selon la revendication 1, caractérisé en ce que les coulisses (19) sont fixées à des griffes (9) par lesquelles la partie longitudinalement mobile (6) de la chambre (5, 6, 7) est portée de manière déplaçable aux deux cotés de manière bien connue sur des cadres porteurs (8).
  5. Joint selon la revendication 4, caractérisé en ce que chaque griffe (9) est disposée sur le cadre porteur (8) par l'intermédiaire d'un glisseur (11) qui, grâce à rainures et languettes (14, 13), est transversalement mobile par rapport aux griffes ou à un glisseur (12) y fixé et longitudinalement mobile par rapport au cadre porteur ou à un glisseur (10) y fixé.
  6. Joint selon la revendication 5, caractérisé en ce que la partie longitudinalement mobile (6) de la chambre (5, 6, 7) est en outre centrée au pied au moyen d'une languette (18) longitudinalement disposée au cadre porteur (8).
EP87100078A 1986-02-14 1987-01-07 Tambour rotatif Expired - Lifetime EP0233448B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87100078T ATE73924T1 (de) 1986-02-14 1987-01-07 Drehtrommel.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863604651 DE3604651A1 (de) 1986-02-14 1986-02-14 Drehtrommel
DE3604651 1986-02-14

Publications (3)

Publication Number Publication Date
EP0233448A2 EP0233448A2 (fr) 1987-08-26
EP0233448A3 EP0233448A3 (en) 1989-03-15
EP0233448B1 true EP0233448B1 (fr) 1992-03-18

Family

ID=6294079

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87100078A Expired - Lifetime EP0233448B1 (fr) 1986-02-14 1987-01-07 Tambour rotatif

Country Status (7)

Country Link
EP (1) EP0233448B1 (fr)
JP (1) JPS62194183A (fr)
AT (1) ATE73924T1 (fr)
CS (1) CS266340B2 (fr)
DE (2) DE3604651A1 (fr)
PL (1) PL150554B1 (fr)
TR (1) TR23248A (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4622408B2 (ja) * 2004-09-16 2011-02-02 三菱マテリアル株式会社 耐圧容器
CN113237323B (zh) * 2021-04-29 2023-07-14 安徽省泽乾冶金科技有限公司 一种回转窑密封装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE452953C (de) * 1927-11-25 Fried Krupp Grusonwerk Akt Ges Dichtung fuer in einem feststehenden Gehaeuse umlaufende Trommeln
US1500589A (en) * 1922-05-29 1924-07-08 Huron Ind Inc Gasket for rotating kilns
US2632658A (en) * 1948-12-30 1953-03-24 Traylor Engineering & Mfg Comp Sealing ring for rotary kilns
DE1805548U (de) * 1956-06-19 1960-02-04 Buckau Wolf Maschf R Beheizte drehtrommel mit abgedichtetem gutsausfallgehaeuse.
DE1192967B (de) * 1961-08-26 1965-05-13 Beteiligungs & Patentverw Gmbh Abdichtung an Drehrohroefen
GB1466143A (en) * 1973-06-09 1977-03-02 Kobe Steel Ltd Rotary kiln
US3940239A (en) * 1974-12-16 1976-02-24 Allis-Chalmers Corporation Rotary reducing kiln seal
DE3320192A1 (de) * 1983-06-03 1984-12-06 Kiener-Pyrolyse Gesellschaft für thermische Abfallverwertung mbH, 7000 Stuttgart Drehtrommel zur behandlung von schuettgut

Also Published As

Publication number Publication date
CS75387A2 (en) 1988-09-16
DE3604651A1 (de) 1987-08-20
TR23248A (tr) 1989-07-24
PL150554B1 (en) 1990-06-30
EP0233448A2 (fr) 1987-08-26
PL264098A1 (en) 1987-12-28
EP0233448A3 (en) 1989-03-15
CS266340B2 (en) 1989-12-13
DE3777423D1 (de) 1992-04-23
ATE73924T1 (de) 1992-04-15
JPS62194183A (ja) 1987-08-26

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