US3860303A - Device for securing a raceway to the casing of a rotary tube such as a rotary kiln, particularly - Google Patents

Device for securing a raceway to the casing of a rotary tube such as a rotary kiln, particularly Download PDF

Info

Publication number
US3860303A
US3860303A US349239A US34923973A US3860303A US 3860303 A US3860303 A US 3860303A US 349239 A US349239 A US 349239A US 34923973 A US34923973 A US 34923973A US 3860303 A US3860303 A US 3860303A
Authority
US
United States
Prior art keywords
race
casing
rotary tube
liner plates
secured
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
US349239A
Other languages
English (en)
Inventor
Herbert Deussner
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.)
Kloeckner Humboldt Deutz AG
Original Assignee
Kloeckner Humboldt Deutz 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 Kloeckner Humboldt Deutz AG filed Critical Kloeckner Humboldt Deutz AG
Application granted granted Critical
Publication of US3860303A publication Critical patent/US3860303A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • F27B7/2206—Bearing rings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C13/00—Rolls, drums, discs, or the like; Bearings or mountings therefor
    • F16C13/02—Bearings
    • F16C13/04—Bearings with only partial enclosure of the member to be borne; Bearings with local support at two or more points
    • 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
    • F27B7/2206—Bearing rings
    • F27B2007/2213—Bearing rings mounted floatingly on the drum
    • F27B2007/2226—Bearing rings mounted floatingly on the drum the mounting comprising elements to maintain the ring between series of abutments

Definitions

  • the invention relates to a device for securing a race or raceway to the casing of a rotary tube such as the casing of a rotary kiln, particularly.
  • rotary tubes such as rotary kilns particularly, are provided with races at at least two locations thereon in the longitudinal direction thereof.
  • rollers are located below the rotary tube or kiln for supporting the latter, the races being rollable on the rollers.
  • the races and the casing of the rotary tube be formed with such dimensions that the requirements for ruggedness or sturdiness are adequately taken into account and, accordingly, that the structural development and assembly of the combination be effected so that deformation of the rotary tube casing (ovality) is held to as little as possible at this location.
  • the casing of the rotary tube is relatively easily deformable in spite of the increased wall thickness of the race supporting portion thereof, while the race per se is circularly rigid and therefore retains its circular shape better even under load, the rotary tube casing fits snugly into the race in the lower region, whereas in the upper region play develops between the rotary tube casing and the race i.e., within the bore of the latter, over a course of time.
  • the ovality of the rotary tube casing thereby further increases in the region of the race and, since the deformation revolves in accordance with the rotation of the rotary tube or kiln, the casing of the rotary tube or kiln experiences at this location a continuously alternating ever more greatly increasing deformation, which disadvantageously effects the durability of the fire-resistant ceramic lining of the tube or kiln, and reduces the life thereof in this region.
  • a rotary tube having an outer casing, a race having an inner diameter that is greater than the outer diameter of the rotary tube casing at a location thereof at which the race is to be secured onto the casing, so that an intermediate space is formed between the race and the casing at the location, and a multiplicity of liner plates releasably received in the intermediate space and substantially uniformly distributed on the periphery of the casing so as to secure the race on the casing.
  • the combination includes bracing means and retaining means secured to the rotary tube casing, and locking means, preferably formed of respective noselike projections, are provided on the lining plate, the locking means being connectible with at least one of the bracing means and the retaining means.
  • the bracing means is located on the rotary tube casing directly adjacent the race and in the vicinity of at least one of the liner plates, the bracing means being of such height above the casing that both the race and the one of the liner plates is braceable thereon in axial direction.
  • race shoes are secured to the rotary tube casing, each of the liner plates resting upon at least one of the race shoes. Assurance is thereby provided that the race seat is cooled to a given degree by the air which passes between the race shoes, that, moreover, when damage occurs to the fire-resistant lining in the region of the race, the liner plate and especially the race is widely protected against the local higher casing temperature then occurring at this location, and that even for a complete wearing of the liner plates, the rotary kiln casing proper is still adequately protected by the race shoes and, furthermore, this construction provides a good seat for the liner plates and simplifies the assembly as well as the production of a releasable connection of the liner plates with the casing of the rotary tube.
  • each of the race shoes has a supporting length that is shorter than the width of the race. Furthermore, the liner plates, as viewed in peripheral direction of the rotary tube casing, project respectively over the edges of the race shoes which support the liner plates in the region of the ends thereof.
  • FIG. 1 is a fragmentary longitudinal sectional view of a rotary kiln showing a race supporting portion thereof with liner plates and a race seated thereon in accordance with the invention
  • FIG. 2 is a view similar to that of FIG. 1 ofa preferred embodiment of the invention which includes race shoes;
  • FIG. 3 is a top plan view of FIG. 2, rotated through with the race omitted;
  • FIG. 4 is a fragmentary sectional view of FIG. 3 taken along the line IVIV in the direction of the arrows;
  • FIG. 5 is a fragmentary sectional view of FIG. 3 taken along the line VV in the direction of the arrows.
  • FIG. 1 there is shown in longitudinal section a race supporting portion 1 of a rotary kiln which has a greater wall thickness than that of the adjacent portions of the rotary kiln casing wall 2, and on one side of which a bracing member 4 is directly secured to the race supporting portion 1.
  • a race 5 is slid over the race supporting portion 1.
  • the race 5 is formed with a bore of greater diameter than the outer diameter of the race supporting portion 1.
  • a liner plate or shim 6 is releasably inserted from the side of the race supporting portion 1 located opposite the side thereof at which the bracing member 4 is secured.
  • the liner plate 6 is formed at the ends thereof, as viewed in axial direction of the rotary kiln as represented by the double-headed arrow 3, with respective noselike extensions 7 and 8 which serve as locking members.
  • the extension 7 engages in a recess formed in the bracing member 4, while the extension 8 is clasped by a clawlike retaining member 9 which is firmly though detachably secured, for example by welding, to the race supporting portion 1.
  • the liner plate 6 is thereby secured against displacement both in peripheral direction of the rotary kiln as well as in radial direction thereof.
  • a multiplicity of liner plates 6 of similar construction are distributed over the outer peripheral surface of the rotary kiln and are respectively secured by corresponding bracing members 4 and retaining members 9.
  • the bracing members 4, respectively viewed in axial direction of the rotary kiln, are secured on only one side of the liner plate while, viewed in peripheral direction of the rotary kiln, the bracing members 4 with regard to at least a respective liner plate, are disposed alternately on the one or on the other side of the race, and, respectively, on the side of the race, for each liner plate located opposite the bracing members 4, respectively, at least one (detachable) retaining member 9 is disposed.
  • the thickness of the liner plate is selected so that, for example, for a rotary kiln, with regard to the diameter of the rotary kiln and the temperature prevailing in the respective race supporting portion, a given amount of play exists in cold condition thereof, i.e., the linear plates can consequently be loosely inserted.
  • a firm race seat analogous to a shrink-fit connection is achieved.
  • FIGS. 2, 3, 4 and 5 there is shown a preferred embodiment of the invention.
  • several sir-called race shoes 10, located adjacent and in spaced relationship to one another and parallel to the axial di rection represented by the double-headed arrow 3, are firmly welded onto the race supporting portion 1 of a rotary kiln, the race supporting portion 1 attaining a larger diameter in accordance with the height of the race shoes 10.
  • a race 5 is slid over the race shoes and, in accordance with the invention, due to the greater inner diameter of the race 5 as compared to the outer diameter of the race supporting portion 1 together with the race shoes 10 welded thereon, a corresponding intermediate space remains therebetween.
  • Liner plates 6 are slid into this intermediate space and uniformly distributed on the periphery of the kiln, the liner plates 6 lying on respectively two race shoes 10 and being of such thickness that, with regard to the different thermal expansions of the race supporting portion 1 and of the race during operation, a firm connection between the race and the casing of the rotary kiln is formed.
  • each race shoe 10 is longer than the width of the race 5 and the respectively projecting end is stepwise broken off, the edge of the step being disposed respectively in an elongation of the lateral surface of the race and thus forming in axial direction an abutment or stop surface for the bracing members 4.
  • the bracing member 4 is welded, the surface 12 of the step serving simultaneously as abutment or stop surface for the bracing member 4 and thus considerably simplifying the assembly of the device of the invention.
  • the height of the bracing member 4 is chosen so that both the race 5 as well as the liner plate 6 abut the bracing member 4 in axial direction.
  • the end view in FIG. 4 shows an embodiment of such a bracing member 4 that is formed of a ring segment 4 which is firmly connected through two props 4" to the race shoe 10.
  • nose-like locking members 11 are secured re spectively to the underside of the liner plates 6 and are disposed between two respective race shoes 10, the width, respectively, of a locking member 11 corresponding substantially to the intermediate space between two race shoes 10.
  • the nose-like locking or securing members 11' and 11" located at the ends of the liner plates 6, as viewed in axial direction of the rotary kiln, project outwardly over the liner plates, in accordance with the invention, and are retained by the bracing members 4 and the retaining member 9.
  • a recess 13 into which the projecting part of the locking or securing member 11 extends.
  • a somewhat hook-shaped retaining member 9 is located on the race shoes 10 and overlaps with the upper part thereof, as viewed in FIG. 2, the projecting end of the securing or locking member 11''.
  • FIG. 5 there is shown in enlarged view a section taken along the line V-V in FIG. 3, from which the special inventive construction of the race shoes 10 is discernible.
  • the supporting surface of the race shoe 10 is shorter than the width of the race 5 and the liner plate 6 slipped thereunder. This is achieved by the fact that, respectively, as viewed in axial direction, i.e., in direction of the double-headed arrow 3, the race shoes 10 are twisted at the ends thereof so that a ledge 14 is formed.
  • the width of the liner plates 6, as is apparent from the partial section at the left-hand side of FIG. 4, is of such dimension that, as viewed in peripheral direction, the liner plates 6 stand out over or project beyond the outer edges of the race shoes 10 supporting the same.
  • the projecting end of a race shoe 10 is stepwise broken off, the edge of the step beingrespectively disposed in an elongation or extension .of the lateral surface of the race and, in axial direction, forms an abutment or stop surface 12 for the ring segment 4 of the bracing member.
  • the liner plates can extend over only one or over more than two race shoes.
  • the bracing or retaining members can extend over a greater part of the periphery of the rotary kiln.
  • a rotary tube having an outer casing, a race havingan inner diameter that is greater than the outer diameter of said rotary tube casing at a location thereof at which said race is to be secured onto said casing, so that an intermediate space is formed between said race and said casing at said location, a multiplicity of liner plates releasably received in said intermediate space and substantially uniformly distributed on the periphery of said casing so as to secure said race on said casing, and race shoes secured to said rotary tube casing, each of said liner plates resting upon at least one of said race shoes, each of said race shoes being longer than the width of said races, and consequently having a projecting end, said projecting end, respectively, being broken off stepwise, the edge of the step being disposed, respectively, in an elongation of the lateral surface of said race and, in axial direction, forming an abutment surface for said bracing means.
  • a rotary tube having an outer casing, a race having an inner diameter that is greater than the outer diameter of said rotary tube casing at a location thereof at which said race is to be secured onto said casing, so that an intermediate space is formed between said race and said casing at said location, a multiplicity of liner plates releasably received in said intermediate space and substantially uniformly distributed on the periphery of said casing so as to secure said race on said casing, bracing means and retaining means secured to said rotary tube casing, and locking means provided on said lining plate, said locking means being connectible with at least one of said bracing means and said retaining means, said bracing means comprising a plurality of bracing members which, respectively, as viewed in axial direction of said rotary tube, are secured only on one side of said liner plates and, as viewed in peripheral direction of said rotary tube, said bracing members, with regard to at least one respective liner plate, being disposed alternately on one-and on the other side of
  • bracing means is located on said rotary tube casing directly adjacent said race and in vicinity of at least one of said liner plates, said bracing means being of such height above said casing that both said race and said one of said liner plates is braceable thereon in axial direction.
  • each of said race shoes has a supporting length that is shorter than the width of said race.
  • a rotary tube having an outer casing, a race having an inner diameter that is greater than the outer diameter of said rotary tube casing at a location thereof at which said race is to be secured onto said casing, so that an intermediate space is formed between said race and said casing at said location, a multiplicity of liner plates releasably received in said intermediate space and substantially uniformly distributed on the periphery of said casing so as to secure said race on said casing, bracing means and retaining means secured to said rotary tube casing.
  • said locking means being connectiblc with at least one of said bracing means and said retaining means, said locking means being formed, respectively, of noselike projections, said noselike locking projections being respectively secured to the underside of said liner plates, and a respective locking projection being disposed between a pair of spaced race shoes secured to said rotary tube casing and supporting a respective liner plate, said locking projection having a width substantially corresponding to the spacing between said pair of race shoes.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Muffle Furnaces And Rotary Kilns (AREA)
  • Rolls And Other Rotary Bodies (AREA)
US349239A 1972-04-08 1973-04-09 Device for securing a raceway to the casing of a rotary tube such as a rotary kiln, particularly Expired - Lifetime US3860303A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2216982A DE2216982C3 (de) 1972-04-08 1972-04-08 Anordnung zur Befestigung eines Laufringes auf dem Mantel eines Drehrohres, insbesondere eines Drehrohrofens

Publications (1)

Publication Number Publication Date
US3860303A true US3860303A (en) 1975-01-14

Family

ID=5841376

Family Applications (1)

Application Number Title Priority Date Filing Date
US349239A Expired - Lifetime US3860303A (en) 1972-04-08 1973-04-09 Device for securing a raceway to the casing of a rotary tube such as a rotary kiln, particularly

Country Status (10)

Country Link
US (1) US3860303A (enrdf_load_stackoverflow)
JP (1) JPS5717212B2 (enrdf_load_stackoverflow)
BR (1) BR7302494D0 (enrdf_load_stackoverflow)
CS (1) CS202024B2 (enrdf_load_stackoverflow)
DE (1) DE2216982C3 (enrdf_load_stackoverflow)
ES (1) ES413262A1 (enrdf_load_stackoverflow)
FR (1) FR2180319A5 (enrdf_load_stackoverflow)
GB (1) GB1430013A (enrdf_load_stackoverflow)
IT (1) IT982987B (enrdf_load_stackoverflow)
ZA (1) ZA732422B (enrdf_load_stackoverflow)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4500285A (en) * 1982-02-01 1985-02-19 Klockner-Humboldt-Deutz Ag Arrangement for mounting a barrel ring on the casting of a rotary cylinder
US4511266A (en) * 1982-06-25 1985-04-16 Klockner-Humboldt-Deutz Ag Arrangement for mounting a bearing ring on a rotary cylinder
US5087133A (en) * 1990-02-07 1992-02-11 Skf Gmbh Arrangement for attaching running rings to a rotary drum
US5890814A (en) * 1997-09-03 1999-04-06 Gentec, Inc. Support ring mount for rotating drum
US20060093252A1 (en) * 2002-12-05 2006-05-04 Fred Klotmann Fastening of a riding ring to the casing of a rotary cylinder
CN103727192A (zh) * 2013-12-27 2014-04-16 南宁广发重工集团有限公司 一种回转体轮带的支撑装置
CN104440071A (zh) * 2014-11-28 2015-03-25 中国一冶集团有限公司 圆筒式混合机大齿轮圈校正装置及方法

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2849490C2 (de) * 1978-11-15 1984-04-26 O & K Orenstein & Koppel Ag, 1000 Berlin Mittels Laufringen gelagerte Drehtrommel
DE2853435A1 (de) * 1978-12-11 1980-06-19 Krupp Polysius Ag Drehtrommel
DE3145900A1 (de) * 1981-11-19 1983-06-01 Krupp Polysius Ag, 4720 Beckum "drehtrommel"
DE3145901A1 (de) * 1981-11-19 1983-06-30 Krupp Polysius Ag, 4720 Beckum "drehtrommel"
AT384292B (de) * 1982-02-01 1987-10-27 Kloeckner Humboldt Deutz Ag Vorrichtung zur befestigung eines laufringes auf dem mantel eines drehrohres, insbesondere eines drehrohrofens
DE4312508A1 (de) * 1993-04-16 1994-10-20 Kloeckner Humboldt Deutz Ag Befestigung eines Laufringes auf dem Mantel eines Drehrohres
JP5435693B2 (ja) * 2008-12-25 2014-03-05 日工株式会社 ロータリーキルン
JP7261688B2 (ja) * 2019-08-07 2023-04-20 明和工業株式会社 連続式加熱処理装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1527147A (en) * 1924-02-25 1925-02-17 Allis Chalmers Mfg Co Tire mounting
US3384356A (en) * 1965-03-11 1968-05-21 Fives Lille Cail Tire fastening for a rotary shell

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE939738C (de) * 1944-02-22 1956-03-01 Polysius Gmbh Befestigung von Laufringen auf Drehtrommeln, insbesondere Drehrohroefen
US3096127A (en) * 1960-05-31 1963-07-02 Vickers Armstrongs Ltd Riding ring for rotary cylinders
CH486679A (de) * 1968-08-28 1970-02-28 Holderbank Cement Drehtrommel mit Laufringen

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1527147A (en) * 1924-02-25 1925-02-17 Allis Chalmers Mfg Co Tire mounting
US3384356A (en) * 1965-03-11 1968-05-21 Fives Lille Cail Tire fastening for a rotary shell

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4500285A (en) * 1982-02-01 1985-02-19 Klockner-Humboldt-Deutz Ag Arrangement for mounting a barrel ring on the casting of a rotary cylinder
US4511266A (en) * 1982-06-25 1985-04-16 Klockner-Humboldt-Deutz Ag Arrangement for mounting a bearing ring on a rotary cylinder
US5087133A (en) * 1990-02-07 1992-02-11 Skf Gmbh Arrangement for attaching running rings to a rotary drum
US5890814A (en) * 1997-09-03 1999-04-06 Gentec, Inc. Support ring mount for rotating drum
US20060093252A1 (en) * 2002-12-05 2006-05-04 Fred Klotmann Fastening of a riding ring to the casing of a rotary cylinder
US7404677B2 (en) * 2002-12-05 2008-07-29 Khd Humboldt Wedag Gmbh Fastening of a riding ring to the casing of a rotary cylinder
CN103727192A (zh) * 2013-12-27 2014-04-16 南宁广发重工集团有限公司 一种回转体轮带的支撑装置
CN103727192B (zh) * 2013-12-27 2016-03-23 南宁广发重工集团有限公司 一种回转体轮带的支撑装置
CN104440071A (zh) * 2014-11-28 2015-03-25 中国一冶集团有限公司 圆筒式混合机大齿轮圈校正装置及方法

Also Published As

Publication number Publication date
IT982987B (it) 1974-10-21
DE2216982C3 (de) 1985-08-01
ZA732422B (en) 1974-04-24
ES413262A1 (es) 1976-01-01
JPS5717212B2 (enrdf_load_stackoverflow) 1982-04-09
DE2216982B2 (de) 1978-02-16
JPS5018838A (enrdf_load_stackoverflow) 1975-02-27
GB1430013A (en) 1976-03-31
BR7302494D0 (pt) 1974-08-29
DE2216982A1 (de) 1973-11-15
FR2180319A5 (enrdf_load_stackoverflow) 1973-11-23
CS202024B2 (en) 1980-12-31

Similar Documents

Publication Publication Date Title
US3860303A (en) Device for securing a raceway to the casing of a rotary tube such as a rotary kiln, particularly
US4573811A (en) Center-free large rolling bearing
US9562577B2 (en) Rail wheel
US3787101A (en) Rock cutter assembly
US3814488A (en) Bearing assembly
US6623165B1 (en) Bearing apparatus of sealing type
CN102913289A (zh) 用于燃气涡轮应用的向外的刷丝的刷式密封设计
US4773655A (en) Slide ring seal
US5370530A (en) Rolls for high temperature roller hearth furnaces
US3523714A (en) Bearing arrangement for tiltable crucibles or converters
US4415021A (en) Positioning a thin wall round wrapper within a heavy wall out-of-round shell of a heat exchanger
CN110220374B (zh) 正反双向转动的回转窑筒体
WO1992015793A1 (en) In situ replaceable bearing
US4320586A (en) Rotary drum
CA2060483A1 (en) Improved support arrangement for optimizing a low pressure steam turbine inner cylinder structural performance
US3604637A (en) End liner assembly for rotary mill or the like
US3575402A (en) Metallurgical vessel supporting device
JP5500682B2 (ja) ステーブクーラ及びその製造方法
EA000658B1 (ru) Металлургическая печь
US3859039A (en) Planetary cooler for rotary tube furnace
US2132321A (en) Tire fastening for kilns and the like
US5887986A (en) Support device with interchangeable wearing members for a rotary part such as a tubular furnace
US2067191A (en) Oil film bearing
US3667819A (en) Thrust bearing and mounting arrangement therefor
CN217271894U (zh) 一种双向定位的线材及棒材精轧机用密封结构