EP0246981B1 - Vorrichtung zum Ausgleichen von thermischen Formveränderungen in Querrichtung eines Rostes eines Verbrennungsofens oder einer Abfallverbrennung und deren Montage- und Demontageverfahren - Google Patents

Vorrichtung zum Ausgleichen von thermischen Formveränderungen in Querrichtung eines Rostes eines Verbrennungsofens oder einer Abfallverbrennung und deren Montage- und Demontageverfahren Download PDF

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Publication number
EP0246981B1
EP0246981B1 EP87401165A EP87401165A EP0246981B1 EP 0246981 B1 EP0246981 B1 EP 0246981B1 EP 87401165 A EP87401165 A EP 87401165A EP 87401165 A EP87401165 A EP 87401165A EP 0246981 B1 EP0246981 B1 EP 0246981B1
Authority
EP
European Patent Office
Prior art keywords
elements
thrust
transversal
bars
compensating
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
Application number
EP87401165A
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English (en)
French (fr)
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EP0246981A1 (de
Inventor
Jean-Pierre Durand
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.)
CNIM Groupe SA
Original Assignee
Constructions Industrielles de la Mediterrane CNIM SA
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 Constructions Industrielles de la Mediterrane CNIM SA filed Critical Constructions Industrielles de la Mediterrane CNIM SA
Priority to AT87401165T priority Critical patent/ATE42391T1/de
Publication of EP0246981A1 publication Critical patent/EP0246981A1/de
Application granted granted Critical
Publication of EP0246981B1 publication Critical patent/EP0246981B1/de
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23H—GRATES; CLEANING OR RAKING GRATES
    • F23H17/00—Details of grates

Definitions

  • the present invention relates to a device for compensating for transverse thermal deformation of a grate of a combustion or incineration hearth of the type described in the preamble to the main claim and to a method for dismantling and mounting such a compensating device.
  • the invention finds particular application in large industrial homes where the grid carpet is subdivided into several tracks in which the air under the grid is blown zone by zone.
  • a compensating device of the type defined above is known from French patent No 1,532,280. This known device has the major drawback of not allowing easy disassembly and maintenance from above the grid. The operator is forced to enter narrow boxes located under the grid.
  • the object of the present invention is to solve these aforementioned problems by proposing a compensating device allowing easier disassembly and maintenance than those of the known device.
  • the compensating device is characterized in that the thrust elements and the retaining element cooperate by respective flanges in partial overlap and in that in the relaxed state of the return spring, the thrust elements are released from their retaining member and are removable from above.
  • the retaining member has at least approximately the shape of a T, partially covering by its shoulders in the active operating state, the respective flanges, mutually opposite, of the two elements of thrust.
  • Another object of the invention is also a method for dismantling and mounting a compensating device according to the invention, which is characterized by the operations indicated in the characterizing part of claim 3.
  • FIG. 1 There is shown diagrammatically in cross section in FIG. 1 a grid comprising three tracks or parallel longitudinal rows of grid bars transversely juxtaposed, and intended to carry the layer in combustion. These bars are fixed on longitudinal or transverse supports and, depending on the type of grid, are threaded individually on a conveyor chain (traveling grid) or assembled in groups of mobile bars used to move the fuel layer from one end to the other from the foyer.
  • a conveyor chain traveling grid
  • the compensating device according to the present invention can be applied to grids with one or more tracks, and can therefore be interposed either between two tracks or rows of successive bars, or between a track and the neighboring fixed side wall.
  • each compensating device comprises at least one movable element 1 of transverse thrust associated with each grid, and coming into constant lateral elastic support against the latter.
  • This elastic support is provided by a return spring 3 which can be a compression or tension spring.
  • the spring 3 is intended to maintain the thrust element 1 in constant lateral support against the grid during the translational movements described by the latter under the effect of temperature variations.
  • the mobile element 1 is also linked to a retaining member 4 fixed in position and preventing any movement substantially normal to the direction of transverse translation of the pushing element 1.
  • the pushing element 1 and the retaining element 4 cooperate by respective flanges 5 and 6 in partial overlap whose dimensions are such that in the relaxed state of the return spring 3 , the pushing element 1 is released from the retaining member 4 and removable from above.
  • FIG. 2 shows in cross section a compensating device according to another embodiment of the invention, intended to be interposed between two tracks of grids.
  • This device comprises two thrust elements 1, 2 placed in opposition, and guided in transverse displacement by mutual sliding contact of at least two respective parts 7, 8 projecting towards one another and partially overlapping each other.
  • the common return spring 3 is a compression spring, interposed between the two thrust elements 1 and 2.
  • the device may further comprise a system for guiding in complementary translation, the pushing element 1 comprising for example two projecting parts 10, 11 extending substantially parallel and spaced from one another, thus forming a path of guiding a projection 12 of the other thrust element 2.
  • the pushing element 1 comprising for example two projecting parts 10, 11 extending substantially parallel and spaced from one another, thus forming a path of guiding a projection 12 of the other thrust element 2.
  • the retaining member 4 is produced substantially in the shape of a T, partially covering by its shoulders 6, 6 ′, in the active operating state, the respective flanges 5, 5 ′, mutually facing the two pushing elements 1, 2.
  • This method consists first of all in bringing the two pushing elements 1, 2 together by means of a tightening tool 13 (FIG. 2) until canceling the pushing force against the neighboring grid bars. These bars can then be dismantled due of the clearance resulting from the bringing together of the pushing elements 1 and 2.
  • the clamping tool can be loosened and removed, thereby allowing the maximum spacing of the two pushing elements 1 and 2 by complete relaxation of the return spring 3.
  • the pushing elements 1 and 2 are then released from their common retaining member 4, and can be removed from above.
  • the assembly process is carried out in the reverse order of the steps.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Incineration Of Waste (AREA)
  • Processing Of Solid Wastes (AREA)
  • Rollers For Roller Conveyors For Transfer (AREA)

Claims (3)

1. Vorrichtung zum Ausgleichen von thermischen Formveränderungen in Querrichtung eines Rostes eines Verbrennungsofens oder einer Abfallverbrennung, die wenigstens eine Reihe von Stäben aufweist, welche Vorrichtung zwischen dieser Reihe und einer Trägerstruktur oder einem Paar von parallelen Längsreihen von quer nebeneinander liegenden Stäben eingefügt ist und zwei quer Schubelemente (1, 2), die in bezug auf einander in der Querrichtung beweglich sind unter der Wirkung einer zwischen beiden Schubelementen (1, 2) eingefügten Spannfeder (3), und ein Mittel zum Festhalten der beiden Elemente in einer Stellung, die jede zur Richtung der Querverschiebung der Elemente im wesentlichen senkrechte Bewegung verhindert, aufweist, dadurch gekennzeichnet, daß die Schubelemente (1, 2) und das Festhaltenelement (4) durch jeweilige Ränder (5, 5'; 6, 6') mit Teilüberdeckung zusammenarbeiten und daß beim entspannten Zustand der Spannfeder (3) die Schubelemente von deren Festhaltenelement (4) frei sind und von oben ausbaubar sind.
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß das Festhaltenelement (4) wenigstens ungefähr die Gestalt eines T aufweist und mit dessen Schultern (6, 6') im aktiven Betriebzustand die jeweiligen gegenüber stehenden Ränder (5, 5') der beiden Schubelemente (1, 2) teilweise überdeckt.
3. Verfahren zum Ausbauen und zum Bauen einer Vorrichtung zum Ausgleichen nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß es darin besteht, die beiden Schubelemente (1, 2) mit einem Spannwerkzeug näher zu bringen bis die Schubkraft gegen die benachbarten Roststäbe verschwindet, dann die benachbarten Roststäbe auszubauen und das Spannwerkzeug zu entfernen, um einen maximalen Abstand zwischen beiden Schubelementen (1, 2) zu erreichen durch vollständige Entspannung der Spannfeder (3), und schliesslich jedes vom gemeinsamen Festhaltenelement (4) so befreite Schubelement auszubauen.
EP87401165A 1986-05-22 1987-05-22 Vorrichtung zum Ausgleichen von thermischen Formveränderungen in Querrichtung eines Rostes eines Verbrennungsofens oder einer Abfallverbrennung und deren Montage- und Demontageverfahren Expired EP0246981B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87401165T ATE42391T1 (de) 1986-05-22 1987-05-22 Vorrichtung zum ausgleichen von thermischen formveraenderungen in querrichtung eines rostes eines verbrennungsofens oder einer abfallverbrennung und deren montage- und demontageverfahren.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8607331A FR2599126B1 (fr) 1986-05-22 1986-05-22 Dispositif compensateur de deformations thermiques transversales d'une grille d'un foyer de combustion ou d'incineration; son procede de demontage et de montage
FR8607331 1986-05-22

Publications (2)

Publication Number Publication Date
EP0246981A1 EP0246981A1 (de) 1987-11-25
EP0246981B1 true EP0246981B1 (de) 1989-04-19

Family

ID=9335506

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87401165A Expired EP0246981B1 (de) 1986-05-22 1987-05-22 Vorrichtung zum Ausgleichen von thermischen Formveränderungen in Querrichtung eines Rostes eines Verbrennungsofens oder einer Abfallverbrennung und deren Montage- und Demontageverfahren

Country Status (6)

Country Link
EP (1) EP0246981B1 (de)
AT (1) ATE42391T1 (de)
DE (1) DE3760111D1 (de)
ES (1) ES2008110B3 (de)
FR (1) FR2599126B1 (de)
GR (1) GR3000074T3 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19910425C2 (de) * 1999-03-10 2000-12-28 Teset Ag Weismes Waimes Rostsystem für einen Brennstoffkessel
CN111457390B (zh) * 2020-05-08 2024-05-10 杭州新世纪能源环保工程股份有限公司 可拆分的多列固废焚烧炉中间固定及中间机械补偿装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1532280A (fr) * 1966-12-27 1968-07-12 Grille pour foyers de grandes dimensions avec cloisons latérales de séparation entre les nappes de grille
DE2622965C2 (de) * 1976-05-21 1978-04-06 Josef Martin Feuerungsbau Gmbh, 8000 Muenchen Kompensationseinrichtung für Abmessungsänderungen von Bauteilen aufgrund von Temperaturschwankungen, insbesondere bei Feuerungen

Also Published As

Publication number Publication date
GR3000074T3 (en) 1990-10-31
DE3760111D1 (en) 1989-05-24
ATE42391T1 (de) 1989-05-15
FR2599126B1 (fr) 1988-09-16
FR2599126A1 (fr) 1987-11-27
EP0246981A1 (de) 1987-11-25
ES2008110B3 (es) 1989-07-16

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