EP0233448A2 - Tambour rotatif - Google Patents

Tambour rotatif Download PDF

Info

Publication number
EP0233448A2
EP0233448A2 EP87100078A EP87100078A EP0233448A2 EP 0233448 A2 EP0233448 A2 EP 0233448A2 EP 87100078 A EP87100078 A EP 87100078A EP 87100078 A EP87100078 A EP 87100078A EP 0233448 A2 EP0233448 A2 EP 0233448A2
Authority
EP
European Patent Office
Prior art keywords
rotary drum
housing
support frame
claws
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.)
Granted
Application number
EP87100078A
Other languages
German (de)
English (en)
Other versions
EP0233448B1 (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
Hazemag Dr E Andreas KG
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, Hazemag Dr E Andreas KG 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 rotary drum, such as a rotary kiln, drum dryer or similar machine with a rotating drum which is traversed by hot gases during operation.
  • a rotary drum such as a rotary kiln, drum dryer or similar machine with a rotating drum which is traversed by hot gases during operation.
  • one has to seal between the rotary drum and an annularly enclosing one end of the rotary drum, fixed housing, z.
  • the feed housing for the material to be treated on a ring flange of the rotary drum a sealing ring, for. B.
  • a lip ring made of an elastic material which cooperates with an annular sealing surface of a part of the housing which is axially displaceable as a function of the axial movements of the rotary drum end having the sealing ring and which is caused by temperature changes and which acts via an axial compensator with an axial fixed part of the housing is connected (DE-AS 25 56 601).
  • the object of the invention is to store the axially displaceable part of the housing in such a way that the bearing can correspond not only to the axial movements but also to the changes in diameter of the housing part, which, given the considerable size of the drum diameter and thus also the housing, of up to 3 meters must be taken into account.
  • an advantageous embodiment of such a storage is given in that the claws are arranged on the support frame with the interposition of a slide, which can be moved by means of grooves and springs against the claws in the transverse direction and against the support frame in the longitudinal direction.
  • the arrangement can also be made so that the slide 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.
  • the transmission of the longitudinal movement of the rotary drum end to the displaceable part of the housing can be in connection with the storage described above in Advantageously achieved in that with each claw is connected with respect to the longitudinal axis of the rotary drum in the longitudinal direction rail, which by means of two sliding blocks or rollers mounted on it encompasses an annular flange attached to the rotary drum on both sides. It is advantageous if the two sliding blocks or rollers of each rail grip around the ring flange with a play that corresponds to the existing or occurring wobble of the ring flange. This prevents the displaceable part of the housing from following every small axial movement which would be caused by a wobble of the ring flange, which can practically not be avoided given the size of the rotary drum diameter, with each drum revolution.
  • the sliding blocks or rollers on the rail are adjustable.
  • FIG. 1 shows the feeding end of a drum dryer, specifically in FIG. 1 in a side view and in FIG. 2 in partial section along the line II-II in FIG. 1.
  • the rotary drum is labeled 1. It is slightly inclined to 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 housing through which the moist drying gases are drawn off, and with the illustrated end into a feed housing 2, to which the inlet pipe 3 for the hot drying gases connects. A pipe 4 leads into this, through which the material to be dried is given up.
  • the feed housing 2 is good compared to the rotary drum 1 sealed.
  • lip-like sealing rings are provided on an annular flange of the rotary drum located in front of the end face of the housing 2, which lie against a corresponding annular flange of this housing. 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 feed housing 2 is therefore divided into two annular parts 5 and 6, which are connected to one another by an elastic compensator 7.
  • the part 5 is axially fixed on a support frame 8, while the part 6 is slidably mounted on the same frame.
  • part 6 of the feed housing 2 cannot move arbitrarily in the transverse direction, it is held in its central position by a further guide device, which consists of a claw 15 fastened to the housing part 6 at the bottom 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 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 condition, so that the support of the lateral claws 9 on the frame 8 is guaranteed.
  • a rail 19 parallel to the rotating drum axis which carries two rollers 20, 21 on its end facing away from the feed housing 2, which rollers can be rotated about axes extending transversely to the rotating drum axis. 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 device works as follows:
  • the rotary drum 1 When the rotary drum 1 starts up, it is cold. Through the inlet pipe 3 of the feed housing 2, the hot drying gases get into the rotary drum and through this to the discharge end, where they exit through the exhaust housing, not shown. The rotary drum heats up and expands in the direction of the feed end, since it is fixedly supported in the axial direction at the outlet end.
  • the ring flange 22 comes to rest against the two rollers 20 and pushes the displaceable part 6 of the feed housing 2 and the ring-shaped contact surface for the sealing rings thereon by the same amount by the amount by which the ring flange carrying the sealing rings is located the rotating drum moves so that the distance between the ring surface and the ring flange practically does not change and the seal rings are not affected by temperature changes. This is known in the art.
  • the feeder housing Since the feeder housing is also heated to a great extent during operation, its diameter also changes not inconsiderably. This fact is taken into account by the coupling of the two upper sliders 12 with the middle sliders 11 by transverse springs 14, because this allows the upper sliders 12 to move outwards in accordance with the radial expansion of the feed housing without jamming occurring.
  • the sliders are designed to be substantially longer than they are wide.
  • the ring flange frees up after reaching a steady operating state, the movable housing 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 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)
  • Muffle Furnaces And Rotary Kilns (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Discharging, Photosensitive Material Shape In Electrophotography (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
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 true EP0233448A2 (fr) 1987-08-26
EP0233448A3 EP0233448A3 (en) 1989-03-15
EP0233448B1 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)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113237323A (zh) * 2021-04-29 2021-08-10 安徽省泽乾冶金科技有限公司 一种回转窑密封装置

Families Citing this family (1)

* 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

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1500589A (en) * 1922-05-29 1924-07-08 Huron Ind Inc Gasket for rotating kilns
DE452953C (de) * 1927-11-25 Fried Krupp Grusonwerk Akt Ges Dichtung fuer in einem feststehenden Gehaeuse umlaufende Trommeln
US2632658A (en) * 1948-12-30 1953-03-24 Traylor Engineering & Mfg Comp Sealing ring for rotary kilns
DE1802361B2 (de) * 1968-10-10 1972-11-23 Süddeutsche Kalkstickstoff-Werke AG, 8223 Trostberg; Eckert & Ziegler GmbH, 8832 Weißenburg Abdichtvorrichtung zwischen einem feststehenden gehaeuse und dem ein- und/oder auslassende eines drehrohres
US3923450A (en) * 1973-06-09 1975-12-02 Kobe Steel Ltd Rotary kiln provided with seal mechanism
DE2556601B2 (de) * 1974-12-16 1979-01-25 Allis-Chalmers Corp., West Allis, Wis. (V.St.A.) Drehrohrofen-Abdichtvorrichtung
DE3320192A1 (de) * 1983-06-03 1984-12-06 Kiener-Pyrolyse Gesellschaft für thermische Abfallverwertung mbH, 7000 Stuttgart Drehtrommel zur behandlung von schuettgut

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Patent Citations (7)

* 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
DE1802361B2 (de) * 1968-10-10 1972-11-23 Süddeutsche Kalkstickstoff-Werke AG, 8223 Trostberg; Eckert & Ziegler GmbH, 8832 Weißenburg Abdichtvorrichtung zwischen einem feststehenden gehaeuse und dem ein- und/oder auslassende eines drehrohres
US3923450A (en) * 1973-06-09 1975-12-02 Kobe Steel Ltd Rotary kiln provided with seal mechanism
DE2556601B2 (de) * 1974-12-16 1979-01-25 Allis-Chalmers Corp., West Allis, Wis. (V.St.A.) Drehrohrofen-Abdichtvorrichtung
DE3320192A1 (de) * 1983-06-03 1984-12-06 Kiener-Pyrolyse Gesellschaft für thermische Abfallverwertung mbH, 7000 Stuttgart Drehtrommel zur behandlung von schuettgut

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113237323A (zh) * 2021-04-29 2021-08-10 安徽省泽乾冶金科技有限公司 一种回转窑密封装置

Also Published As

Publication number Publication date
ATE73924T1 (de) 1992-04-15
DE3604651A1 (de) 1987-08-20
JPS62194183A (ja) 1987-08-26
DE3777423D1 (de) 1992-04-23
PL264098A1 (en) 1987-12-28
CS266340B2 (en) 1989-12-13
TR23248A (tr) 1989-07-24
CS75387A2 (en) 1988-09-16
EP0233448B1 (fr) 1992-03-18
EP0233448A3 (en) 1989-03-15
PL150554B1 (en) 1990-06-30

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