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EP0062742A1 - Dispositif pour assurer l'étanchéité du joint entre un four rotatif et la tête du four - Google Patents

Dispositif pour assurer l'étanchéité du joint entre un four rotatif et la tête du four Download PDF

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Publication number
EP0062742A1
EP0062742A1 EP82101063A EP82101063A EP0062742A1 EP 0062742 A1 EP0062742 A1 EP 0062742A1 EP 82101063 A EP82101063 A EP 82101063A EP 82101063 A EP82101063 A EP 82101063A EP 0062742 A1 EP0062742 A1 EP 0062742A1
Authority
EP
European Patent Office
Prior art keywords
ring
rotary kiln
sealing
ring element
slidable
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
EP82101063A
Other languages
German (de)
English (en)
Other versions
EP0062742B1 (fr
Inventor
Heinz Ing. Grad. Grachtrup
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.)
ThyssenKrupp Industrial Solutions AG
Original Assignee
Krupp Polysius 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
Application filed by Krupp Polysius AG filed Critical Krupp Polysius AG
Publication of EP0062742A1 publication Critical patent/EP0062742A1/fr
Application granted granted Critical
Publication of EP0062742B1 publication Critical patent/EP0062742B1/fr
Expired legal-status Critical Current

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Classifications

    • 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 specially adapted for rotary-drum furnaces
    • F27B7/22—Rotary drums; Supports therefor
    • F27B7/24—Seals between rotary and stationary parts
    • 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 sealing the gap between the inlet end of a rotary kiln and a stationary inlet housing with the features according to the preamble of claim 1.
  • the slidable ring has a certain axial displaceability in the known designs and is also pressed by the pressure-actuated cylinder in the direction of the inlet end of the rotary kiln.
  • the freedom of movement of the sliding ring is not sufficient to ensure that the two wear surfaces (the to be held on the one hand by the sliding ring and on the other hand by the ring rotating with the rotary kiln) in sealing contact.
  • the invention is therefore based on the object, while avoiding these disadvantages of the known designs, to provide a device of the type mentioned which is characterized by a particularly large range of movement of the sliding ring draws and thus guarantees a perfect seal of the gap between the inlet end of the rotary kiln and the stationary inlet housing, even when the rotary kiln is very long.
  • the slidable ring consists of several, preferably two, concentrically arranged and telescopic relative to each other in the axial direction slidable ring elements, of which the inner ring element is supported via the first sealing element on the fixed ring while the supports the first wear surface of the outer ring element via a second annular sealing element on the inner ring element.
  • the gap sealing device illustrated in the drawing is provided in the transition region from a stationary inlet housing, of which only the outer wall 1 can be seen in FIG. 1, and the inlet end 2a of a rotary kiln 2, which is only indicated, in order to seal the gap 3 present there from the outside .
  • a fixed ring 4 is fixedly attached, which extends from this wall 1 in the axial direction to the rotary kiln inlet end 2a and which is essentially cylindrical.
  • a circumferential circumferential, outwardly open ring channel 5 is formed, in which an annular sealing element 6 (e.g. asbestos cord or the like) extending over the entire ring circumference is arranged .
  • This slidable ring 8 can be composed of a plurality of ring elements arranged concentrically to one another and telescopically slidable relative to one another in the axial direction; In the illustrated embodiment, this slidable ring 8 consists of an inner ring element 9 and an outer ring element 10 (ie preferably two such ring elements).
  • the inner ring member 9 is supported via a first annular seal member 11 on the stationary ring 4 from, said first seal member 11 nnenhensseite on the I of the directed against the inlet housing wall 1 end of this ring member 9 is arranged in a circumferential, inwardly open annular channel 12th
  • the outer ring element 10 is supported on the outer circumferential side of the inner ring element 9 via a second ring-shaped sealing element 13.
  • This second sealing element 13 is also held in a circumferential ring channel 14 - in this case the outer ring element 10 - which is open towards the inner ring element 9.
  • the outer ring element 10 of the slidable ring 8 carries on its end facing the rotary kiln 2 a first wear surface 15a which is formed by a wear ring 15 which is firmly connected to the outer ring element 10 (for example by screwing or riveting).
  • This first wear surface 15a is thus sealed in Be Contact coming second wear surface 16a of a second wear ring 16 opposite, which is rotatably supported by a ring 17, which in turn is rotatably attached to the inlet end 2a of the rotary kiln 2.
  • the wear rings 15 and 16 are made in the usual way from a suitable material (for example steel ST 37) and either in one piece or - which is generally preferred - from ring segments.
  • pressure-actuated cylinders e.g. pneumatic cylinders
  • the inlet housing wall 1
  • the sliding ring 8 press the sliding ring 8 towards the inlet end 2a of the rotary kiln 2 and the keep both wear surfaces 15a and 16a in sealing contact with each other.
  • the cylinders 18 are carried by the outer ring element 10, in that this outer ring element 10 has an annular disk 19 with a significantly larger outer diameter than the other parts, the cylinders 18 then being fastened (preferably screwed) to the outer circumference of this annular disk 19, that they are supported with the free ends 20a of their piston rods 20 on the outer E inlet housing wall 1 or on abutments 21 provided there (correspondingly distributed in the circumferential direction).
  • the cylinders 18 are at least pointing towards the rotary kiln 2 Areas surrounded by a heat shield 22.
  • a stop device 23 is attached, which limits the maximum pull-out movement of the ring element 10 by interacting with the stop device 23 via its ring channel 14.
  • This stop device 23 can be formed either by a circumferential ring or by a number of relatively short ring sections.
  • the outer ring element 10 has on its outer circumference two mounting joints 24, 25, which make this ring element 10 axially slidable, but non-rotatable via a suspension device 26, 27 on the stationary one Hold the inlet housing wall 1.
  • These mounting joints are expediently attached to the annular disk 19 in two circumferentially approximately opposite regions (as shown in FIG. 2).
  • The: suspension devices for the outer ring element 10 are essentially formed by suspension rods 26, 27, which can be adjusted in their effective carrying length - in particular by screws - and are provided with fastening plates 28, 29 which are located at corresponding points on the outer inlet housing wall 1 can be screwed on or fastened in any other way.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Muffle Furnaces And Rotary Kilns (AREA)
  • Furnace Details (AREA)
EP82101063A 1981-04-10 1982-02-12 Dispositif pour assurer l'étanchéité du joint entre un four rotatif et la tête du four Expired EP0062742B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3114695 1981-04-10
DE19813114695 DE3114695A1 (de) 1981-04-10 1981-04-10 Vorrichtung zur abdichtung des spaltes zwischen drehrohrofen und einlaufgehaeuse

Publications (2)

Publication Number Publication Date
EP0062742A1 true EP0062742A1 (fr) 1982-10-20
EP0062742B1 EP0062742B1 (fr) 1984-09-19

Family

ID=6129945

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82101063A Expired EP0062742B1 (fr) 1981-04-10 1982-02-12 Dispositif pour assurer l'étanchéité du joint entre un four rotatif et la tête du four

Country Status (5)

Country Link
US (1) US4457520A (fr)
EP (1) EP0062742B1 (fr)
DE (2) DE3114695A1 (fr)
ES (1) ES511228A0 (fr)
ZA (1) ZA821134B (fr)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2123097B (en) * 1982-06-03 1986-01-22 British Nuclear Fuels Ltd Rotary kiln sealing assemblies
US4728289A (en) * 1987-03-10 1988-03-01 Westinghouse Electric Corp. Axial seal system for rotary combustor
DE3830678A1 (de) * 1988-09-09 1990-03-22 Veba Oel Entwicklungs Gmbh Drehrohr
US4950155A (en) * 1989-11-16 1990-08-21 Westinghouse Electric Corp. Replaceable longitudinal seal for a rotary combustor
US4993940A (en) * 1990-06-06 1991-02-19 Westinghouse Electric Corp. Scraper for an axial seal in a rotary combustor
US5112222A (en) * 1991-05-01 1992-05-12 Westinghouse Electric Corporation Debris tolerant seal
US5567380A (en) * 1994-09-30 1996-10-22 Hoover; Donald P. Rotary retort heat treating furnace seals
US5927970A (en) * 1996-10-02 1999-07-27 Onsite Technology, L.L.C. Apparatus for recovering hydrocarbons from solids
US6478841B1 (en) 2001-09-12 2002-11-12 Techint Technologies Inc. Integrated mini-mill for iron and steel making
US20040222590A9 (en) * 2001-12-11 2004-11-11 Loewenstein David Allen Poker game
US20030136747A1 (en) * 2002-01-18 2003-07-24 Wood Bradford Russell Soil cleaning systems and methods
US7306057B2 (en) * 2002-01-18 2007-12-11 Varco I/P, Inc. Thermal drill cuttings treatment with weir system
CN102135180B (zh) * 2011-02-17 2015-06-24 中材装备集团有限公司 回转筒式设备进出料端密封装置
DE102022209740A1 (de) 2022-09-16 2024-03-21 Thyssenkrupp Ag Dichtung für einen Drehrohrofen
LU103007B1 (de) 2022-09-16 2024-03-18 Thyssenkrupp Ag Dichtung für einen Drehrohrofen
EP4587771A1 (fr) 2022-09-16 2025-07-23 thyssenkrupp Polysius GmbH Joint pour four rotatif
CN116045661B (zh) * 2023-02-12 2025-07-04 中材建设有限公司 一种全氧回转窑密封装置
BE1032681B1 (de) 2024-06-07 2026-01-20 thyssenkrupp Polysius GmbH Wärmebehandlungsanlage und Verfahren zum Betreiben einer Wärmebehandlungsanlage
WO2025252863A1 (fr) 2024-06-07 2025-12-11 thyssenkrupp Polysius GmbH Système de traitement thermique et procédé de fonctionnement d'un système de traitement thermique

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB688240A (en) * 1950-04-15 1953-03-04 Paul Blanchard Improvements in and relating to joints for rotary furnaces
DE1280475B (de) * 1965-05-19 1968-10-17 Miag Muehlenbau & Ind Gmbh Vorrichtung zum Abdichten von Drehrohroefen gegenueber dem feststehenden Einlaufgehaeuse
DE1802361A1 (de) * 1968-10-10 1970-05-14 Fellner & Ziegler Gmbh Vorrichtung zur Abdichtung des Ein- und/oder Auslassendes von Drehrohroefen,Drehtrommeln,Trockentrommeln u.dgl.
FR2402173A1 (fr) * 1977-09-16 1979-03-30 Smit Ovens Nijmegen Bv Dispositif pour assurer l'etancheite du tube tournant d'un four tubulaire rotatif

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD82808A (fr) *
DE391349C (de) * 1922-09-28 1924-03-06 Bryan Laing Gasdichte Abdichtung fuer umlaufende Trocken- und Brenntrommeln, Retorten u. dgl.
US1620989A (en) * 1926-06-14 1927-03-15 Allis Chalmers Mfg Co Packing
DE527306C (de) * 1927-03-15 1931-06-16 Arno Andreas Abdichtung von Trockentrommeln, Drehoefen u. dgl. gegenueber dem sie umgebenden Mauerwerk
DE489486C (de) * 1927-05-20 1930-09-23 Fried Krupp Grusonwerk Akt Ges Dichtung fuer in einem feststehenden Gehaeuse umlaufende Trommeln, wie Drehrohroefen
DE626017C (de) * 1933-12-21 1936-02-19 Fried Krupp Grusonwerk Akt Ges Drehrohrdichtung
US2253098A (en) * 1940-08-03 1941-08-19 Link Belt Co Rotary kiln or drier
DE1027024B (de) * 1952-04-23 1958-03-27 Degussa Einrichtung zur Abdichtung bewegter Teile, insbesondere an Drehrohren
DE1222843B (de) * 1961-05-09 1966-08-11 Huettenwerk Oberhausen Ag Ofenabdichtung fuer Drehrohroefen
DE1202207B (de) * 1964-04-16 1965-09-30 Beteiligungs & Patentverw Gmbh Vorrichtung zur Abdichtung der feststehenden gegen die beweglichen Teile eines Drehrohrofens
DE2015456A1 (en) * 1970-04-01 1971-10-21 Wedag Westfalia Dinnendahl Non-contacting seal for rotating kiln furnaces
FR2086706A5 (fr) * 1970-04-07 1971-12-31 Fives Lille Cail
US3837658A (en) * 1973-01-05 1974-09-24 Beloit Corp Rotary steam seal for dryer drum
US3940239A (en) * 1974-12-16 1976-02-24 Allis-Chalmers Corporation Rotary reducing kiln seal
US3980128A (en) * 1975-06-02 1976-09-14 The Air Preheater Company, Inc. Rotor post seal
US4193756A (en) * 1978-03-08 1980-03-18 Tosco Corporation Seal assembly and method for providing a seal in a rotary kiln

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB688240A (en) * 1950-04-15 1953-03-04 Paul Blanchard Improvements in and relating to joints for rotary furnaces
DE1280475B (de) * 1965-05-19 1968-10-17 Miag Muehlenbau & Ind Gmbh Vorrichtung zum Abdichten von Drehrohroefen gegenueber dem feststehenden Einlaufgehaeuse
DE1802361A1 (de) * 1968-10-10 1970-05-14 Fellner & Ziegler Gmbh Vorrichtung zur Abdichtung des Ein- und/oder Auslassendes von Drehrohroefen,Drehtrommeln,Trockentrommeln u.dgl.
FR2402173A1 (fr) * 1977-09-16 1979-03-30 Smit Ovens Nijmegen Bv Dispositif pour assurer l'etancheite du tube tournant d'un four tubulaire rotatif

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ZEMENT-KALK-GIPS, Band 24, Nr. 5, 1971, Seiten 208-215, Wiesbaden, DE. *

Also Published As

Publication number Publication date
ZA821134B (en) 1983-01-26
EP0062742B1 (fr) 1984-09-19
US4457520A (en) 1984-07-03
ES8304657A1 (es) 1983-03-01
DE3114695A1 (de) 1982-10-28
ES511228A0 (es) 1983-03-01
DE3260751D1 (en) 1984-10-25

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