US3520094A - Device for protecting the collars of rotary kilns - Google Patents

Device for protecting the collars of rotary kilns Download PDF

Info

Publication number
US3520094A
US3520094A US750288A US3520094DA US3520094A US 3520094 A US3520094 A US 3520094A US 750288 A US750288 A US 750288A US 3520094D A US3520094D A US 3520094DA US 3520094 A US3520094 A US 3520094A
Authority
US
United States
Prior art keywords
collar
collars
protecting
rotary kilns
plates
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
US750288A
Other languages
English (en)
Inventor
Gerard Deynat
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.)
CREUSOT FORGES ATELIERS
FORGES ET ATELIERS DU CREUSOT SOC
Original Assignee
CREUSOT FORGES ATELIERS
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 CREUSOT FORGES ATELIERS filed Critical CREUSOT FORGES ATELIERS
Application granted granted Critical
Publication of US3520094A publication Critical patent/US3520094A/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 peculiar to rotary-drum furnaces
    • F27B7/22—Rotary drums; Supports therefor
    • F27B7/2206—Bearing rings
    • 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
    • F27B7/2206—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 protecting the collars of rotary kilns.
  • the invention which obviates this disadvantage, relates to a device for protecting the collars of rotary kilns, characterised in that it comprises a plurality of plates mounted on, and at a certain distance from, the inner wall of the collar, the plates together forming a protective ring parallel with the collar, the gap between the protective ring and the collar being lined with a refractory material.
  • FIG. 1 is a partial section through the kiln casing, in line with a collar, taken along the line I-l in FIG. 2;
  • FIG. 2 is a plan view, taken along the line II-II 0f FIG. 1, of a device according to the invention.
  • FIG. 3 is a section, taken along the line III-III in FIG. 1, of the device according to the invention.
  • the casing 1 of the kiln has collars 2 supporting hoops 3.
  • the kiln has an inner lining of refractory brickwork 4.
  • Welded to the inner wall of the collar 2 are regularly distributed chocks or shims 5, some of which are parallel with the kiln axis, the others 6 being perpendicular thereto.
  • a plurality of plates 7 together forming a cylindrical ring having a diameter less than the internal diameter of the collar are applied between the chocks 5, 6.
  • Each plate 7 takes the form of a rectangular section of a cylindrical surface, two sides 8, 9 of which are rectilinear and parallel with the axis, the two other sides 10 being circular and perpendicular to the axis.
  • each plate 7 is formed with orifices 12 which correspond to the chocks 5 and via which the end of each plate is welded thereto.
  • a central slot 13 terminating in a circular tone 14 enables the plate to expand longitudinally.
  • the other end 9 of each plate is curved to engage below the end 8 of the adjacent plate.
  • the join between the ends 8 and 9 of two adjacent plates is filled with-asbestos 17. The assembly of plates therefore forms anl annular belt each element of which can expand in- 5 dependently of the other.
  • the space 15 between the inner wall of the collar and the'plate is lined with refractory concrete 16 before the plates are put in place.
  • the brickwork 4 forming the inner lining of the casing is disposed on the plates 7.
  • the resulf is a reduction in the internal diameter of the kiln in line with each collar, but the difference in thickness of the lining is progressively made up, and forms no obstacle to the forward movement of the material in the kiln during its rotation.
  • the refractory filling 16 disposed below the uncovered plate 7 remains in place and considerably reduces the temperature to which the collar and hoop are heated.
  • the elements of the device can readily be replace if they have become excessively deformed by the expansion they have undergone.
  • the embodiment disclosed hereinbefore can be ⁇ modified.
  • the space 15 between the collar and the plates could be filled with some other material than refractory concrete 16, or else merely a gap could be left which would still form a protection for the collar, although a less effective one.
  • the device according to the invention can be used in different installations from rotary kilns, and in a general way in all enclosures subject to elevated temperatures and clad with a refractory lining.
  • the device is used exclusively for protecting the collars supporting the hoops or driving rims, but clearly the device could be applied to more extensive portions of the casing.
  • a device for protecting the collars of rotary kilns having a metal casing and a refractory lining comprising a plurality of independent plates mounted on, and at adistance from the inner wall of the collar, the plates together forming a protective ring parallel with the collar, the refractory lining being mounted on the inner face of the protective ring.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Muffle Furnaces And Rotary Kilns (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
US750288A 1967-12-22 1968-08-05 Device for protecting the collars of rotary kilns Expired - Lifetime US3520094A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR133504 1967-12-22

Publications (1)

Publication Number Publication Date
US3520094A true US3520094A (en) 1970-07-14

Family

ID=8643635

Family Applications (1)

Application Number Title Priority Date Filing Date
US750288A Expired - Lifetime US3520094A (en) 1967-12-22 1968-08-05 Device for protecting the collars of rotary kilns

Country Status (7)

Country Link
US (1) US3520094A (de)
BE (1) BE724009A (de)
BR (1) BR6804500D0 (de)
DE (1) DE1810826B1 (de)
ES (1) ES361588A1 (de)
FR (1) FR1557822A (de)
GB (1) GB1235368A (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4975049A (en) * 1989-06-14 1990-12-04 General Refractories Company Refractory block for rotary kiln
US5695329A (en) * 1996-09-24 1997-12-09 Orcutt; Jeffrey W. Rotary kiln construction with improved insulation means

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3145901A1 (de) * 1981-11-19 1983-06-30 Krupp Polysius Ag, 4720 Beckum "drehtrommel"
DE3145900A1 (de) * 1981-11-19 1983-06-01 Krupp Polysius Ag, 4720 Beckum "drehtrommel"
DE3777520D1 (de) * 1986-09-30 1992-04-23 Nihon Cement Rotierender ofen.
FR3051792B1 (fr) 2016-05-30 2020-01-24 Ecole Superieure De Physique Et De Chimie Industrielles De La Ville De Paris Nouveaux composes, derives de dioxoborolane ou de dioxaborinane fonctionnalises, leur procede de preparation et leurs utilisations

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2230141A (en) * 1939-10-24 1941-01-28 Gen Refractories Co Rotary kiln lining
US2635865A (en) * 1949-05-21 1953-04-21 Diamond Alkali Co Kiln lining
US3034776A (en) * 1952-02-08 1962-05-15 Lurgi Ges Fur Chemie Und Hutte Rotary furnace
US3227430A (en) * 1964-06-24 1966-01-04 Kaiser Aluminium Chem Corp Refractory structure for a rotary kiln
US3367075A (en) * 1966-06-24 1968-02-06 Pennsalt Chemical Corp Corrosion-proof liner for chimney outer wall

Family Cites Families (2)

* 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
FR966934A (fr) * 1947-06-13 1950-10-20 Smidth & Co As F L Fixation de chemins de roulement de tambours tournants

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2230141A (en) * 1939-10-24 1941-01-28 Gen Refractories Co Rotary kiln lining
US2635865A (en) * 1949-05-21 1953-04-21 Diamond Alkali Co Kiln lining
US3034776A (en) * 1952-02-08 1962-05-15 Lurgi Ges Fur Chemie Und Hutte Rotary furnace
US3227430A (en) * 1964-06-24 1966-01-04 Kaiser Aluminium Chem Corp Refractory structure for a rotary kiln
US3367075A (en) * 1966-06-24 1968-02-06 Pennsalt Chemical Corp Corrosion-proof liner for chimney outer wall

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4975049A (en) * 1989-06-14 1990-12-04 General Refractories Company Refractory block for rotary kiln
US5695329A (en) * 1996-09-24 1997-12-09 Orcutt; Jeffrey W. Rotary kiln construction with improved insulation means

Also Published As

Publication number Publication date
ES361588A1 (es) 1970-12-16
FR1557822A (de) 1969-02-21
GB1235368A (en) 1971-06-16
BR6804500D0 (pt) 1973-02-06
BE724009A (de) 1969-05-02
DE1810826B1 (de) 1970-08-20

Similar Documents

Publication Publication Date Title
US3781167A (en) No-weld refractory covering for water cooled pipes
US1774150A (en) Boiler wall
US3520094A (en) Device for protecting the collars of rotary kilns
US2270297A (en) Construction of heaters
US3802833A (en) Refractory masonry wall bounding a space which receives hot gas
US2435362A (en) Work-supporting structure and protective means for furnaces and the like
US2436452A (en) Water-cooled furnace supporting member
US3647194A (en) Protective refractory member
US2486348A (en) Blast furnace wall structure
US3820947A (en) Insulation for water cooled pipes in a reheating furnace
US2482878A (en) Reinforced refractory pipe insulation
US3435578A (en) Furnace wall construction
US2426568A (en) Furnace door
US3481636A (en) Mounting for a bearing ring on a rotary drum
US3055651A (en) Interlocking ceramic tile elements
US3690627A (en) Regenerative air heater such as hot blast stove
US3805466A (en) Metallurgical shaft furnace lined by refractory elements and filler spacers
US3343824A (en) Rotary kiln
US1885800A (en) Suspended flat arch for furnaces, kilns, and the like
US2054587A (en) Acidproof tank
US891327A (en) Sintering apparatus.
US1919412A (en) Furnace
EP0095803B1 (de) Stütz- und Schutzvorrichtung an einer metallurgischen Anlage
US3965637A (en) Composite block for refractory linings of furnaces
GB2289105A (en) Anchor for mounting monolithic refractory ceramic linings