EP0277053A1 - Feuerungsrost mit Querroststäben, die an ihren Vorderseiten miteinander verbunden sind - Google Patents

Feuerungsrost mit Querroststäben, die an ihren Vorderseiten miteinander verbunden sind Download PDF

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Publication number
EP0277053A1
EP0277053A1 EP88400038A EP88400038A EP0277053A1 EP 0277053 A1 EP0277053 A1 EP 0277053A1 EP 88400038 A EP88400038 A EP 88400038A EP 88400038 A EP88400038 A EP 88400038A EP 0277053 A1 EP0277053 A1 EP 0277053A1
Authority
EP
European Patent Office
Prior art keywords
elements
grid according
face
bar
staple
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
EP88400038A
Other languages
English (en)
French (fr)
Other versions
EP0277053B1 (de
Inventor
André Moreau
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.)
Dalkia Wastenergy SA
Original Assignee
TIRU SA Traitement Industriel des Residus Urbains
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 TIRU SA Traitement Industriel des Residus Urbains filed Critical TIRU SA Traitement Industriel des Residus Urbains
Priority to AT88400038T priority Critical patent/ATE54024T1/de
Publication of EP0277053A1 publication Critical patent/EP0277053A1/de
Application granted granted Critical
Publication of EP0277053B1 publication Critical patent/EP0277053B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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 invention relates to a hearth grate, for supporting a mass of burning solids, in particular urban waste, comprising, on a downward slope from an upstream loading zone to a downstream ashtray, a succession of transverse bars, alternately fixed and movable back and forth longitudinally, and having on the top a dorsal face to support the mass and a front face in sliding support on the dorsal face of an upstream bar, each bar consisting of a plurality of elements generally rectangular contiguous along vertical side faces.
  • Patent document FR-A-2 574 160 describes a recoil hearth grate which comprises elements of bars provided, at the connection of the front face and the dorsal face, and on the latter, a transverse faceted projection, with air blowing holes made in a rear facet of the projection, so as to look downstream, and channel air jets from below the grid into the mass of combustible solids, in an upward direction with an angle of about 15 ° on the horizontal.
  • This patent document also describes means for keeping the elements of adjoining bars in alignment, these means consisting of transverse pins which pass through holes made in the lateral faces at the location of the projections.
  • the blowing air reaches the mass in combustion only through the blowing orifices. It is therefore necessary to prevent the rod elements from being lifted by the solids in combustion when they are supported by the lower edge of their front face on the dorsal face of the element located immediately upstream. It will be recalled that the bars are held in place by their weight, and held by the rear end of their lower face on a cross member, which engages in a transverse groove formed in this lower face.
  • the cross member is alternately fixed to the general grid frame, and fixed to a moving frame back and forth.
  • the purpose of dividing the bars into transversely aligned elements is, on the one hand, to give the bar relative flexibility, and on the other hand to facilitate the assembly and disassembly of the grid by constituting elements of dimensions and manageable weight.
  • the solution recommended by FR-A-2 574 160 has drawbacks, however.
  • the pins can only be inserted into the holes provided for this purpose in the side faces of the elements away from the location of the bar on the grid, because the grid is laterally limited by hearth walls.
  • the bar must be put in place assembled, which involves manipulations of the entire bar.
  • the dismantling in elements also supposes that the bar, removed whole from the grid, is carried away to uncover the elements. This is particularly annoying when it is only necessary to disassemble a few elements, for example to replace them if they appear defective, because it is then necessary to handle all the bars, whole, which comprise at least one defective element.
  • the invention proposes a hearth grate, to support a mass of burning solids, in particular urban waste, comprising, in a downward slope from an upstream loading zone to a downstream ashtray, a succession of transverse bars, alternately fixed and movable back and forth longitudinally, and having on the upper side a dorsal face for supporting the mass, and a front face in sliding support by a lower edge on the dorsal face of an upstream bar, each bar consisting of '' a plurality of generally rectangular elements in abutment along lateral sides, coupling means, arranged near the front faces, ensuring the maintenance in transverse alignment of the plurality of elements, characterized in that said coupling means include C-shaped staples with two parallel branches joined by a perpendicular crosspiece, each staple being able to be arranged in a bridge between two joined elements s, with each of its branches respectively engaged in a housing formed in the front face of one and the other of the adjoining elements.
  • the housings are symmetrical with respect to a median plane parallel to the lateral faces, so that the adjacent housings of two adjoining elements are arranged symmetrically with respect to the plane of the joined lateral faces.
  • the elements include notches which connect the staple branch housings to the adjacent lateral face, to make room for the staple crosspiece.
  • This crosspiece can be engaged in the recesses set back from the front face.
  • the notches can be extended by slits, along the branches. Plates can be welded above the housings to prevent the staple from coming out of the housing, but these platelets must not bridge between the elements, to keep play possibilities.
  • the elements have transverse projections on their dorsal face, at the connection with the front face, with a rear facet where the blowing orifices open out.
  • hearth grate The general structure of the hearth grate will be assumed to be known, in particular for burning urban waste, which will be described very succinctly here, referring for details for example FR-A-2,574,160, this document. constituting a state of the art close to the present invention.
  • this kind of hearth grate comprises, in a downward slope from an upstream loading zone to a downstream ashtray, a succession of transverse bars, alternately movable back and forth longitudinally and having on the upper side of the grate a dorsal face to support the mass, and a front face in sliding support by a lower edge on the dorsal face of an upstream bar.
  • Each bar comprises a plurality of generally rectangular elements placed side by side along vertical lateral faces.
  • two bar elements 10 and 11 are joined by side faces 109 and 119 respectively.
  • These side faces are vertical on the assembled grid , and perpendicular to a front face 101, 111, respectively, as well as to a dorsal face 102, visible on the element 10 in only FIG. 6.
  • the front faces 101 and 111 comprise two flaps 101 a , 101 b for l element 10, and 111 a , 111 b for element 11.
  • the lower panel is strongly inclined relative to the plane of the dorsal face 102 (see FIG. 6), while the upper panel is inclined at approximately 45 ° on the plane of the dorsal face 102.
  • the lower pan 101 a, 111 terminates at its lower part, by a flange 100, 110 by which the element 10, 11 rests on the dorsal face of the element located immediately upstream.
  • the dorsal face 102 at its connection with the upper face 101 b of the front face, is surmounted by a projection 103 of trapezoidal section, with a front facet 103 a in continuity with the upper face 101 b , an upper facet 103 b substantially parallel to the dorsal face 102, and a rear facet 103 c . In this rear facet and perpendicular to it, holes are made supply air 103 d .
  • the orifices 103 d When the elements are in place on the grid, the orifices 103 d are directed downstream, with their axes sloping upwards at approximately 15 ° on the horizontal.
  • the blowing orifices 103 are supplied with air by at least one box located below the grid.
  • the coupling means are used which form the precise object of the present invention.
  • each of the front faces 101, 111, and more exactly in the lower sections 101 a , 111 a of these faces are formed near the lateral abutment faces 109, 119 of the housings 104, 114, of rectangular section, which can receive branches 20, 21 of a C 2 staple, the two branches 20 and 21 being joined by a cross member 22.
  • This staple is of uniform thickness and its branches 20 and 21, as well as its cross member 22 have rectangular sections.
  • the housings 104, 114 extend, towards the abutment face 109, 119 by notches 108, 118, such that the crosspiece 22 of the clip 2 can penetrate to come set back from the lower pan 101 a, 111a of the front face 101, 111, while the branches 20 and 21 penetrating respectively in the housings 104 and 114.
  • housings 104, 114 are formed perpendicular to the lower sections 101, 111 has end faces 101, 111 and the staple 2 is oriented parallel to the lower edges 100, 110.
  • the notches 108 are extended by slots 105 which extend to the bottom of the housing 104, which provides retaining projections 106 and 107 for the branch of clip (see Figure 4).
  • This arrangement makes it easier to extract a staple stuck in the housing, by breaking the crosspiece to introduce a hook behind the stuck branch.
  • housings 104, 114 and the notches 108, 118 are arranged symmetrically with respect to an abutment plane materialized by the lateral faces 109, 119.
  • the housings 104, 114 and the notches 108, 118 are arranged symmetrically with respect to an abutment plane materialized by the lateral faces 109, 119.
  • the elements 10, 11 all have the same structure, in each element , in the vicinity of the lateral faces, there will be two housings 104 and notches 108, arranged symmetrically with respect to a median plane of the element parallel to the lateral faces.
  • FIG. 7 represents a longitudinal portion of the grid, comprising transverse bars 200, 210, 220, 230, 240, 250, 260, each bar comprising several elements which are referenced with the digits of the tens and hundreds of the bar to which they belong, the number of units being 1, 2, 3 or 4, in order from bottom to top.
  • the upstream of the grid is on the left of the figure and the downstream on the right.
  • the successive elements are offset laterally by thirds of width. Elements of a third and two thirds of width are arranged at the ends of the bars 210,220,240,250, to achieve this offset.
  • the element 242 is missing, which reveals the dorsal face of the upstream element 232 in its entire extent.
  • the bar elements have a projection on the dorsal face at the connection with the front face.
  • the projections are referenced by the reference of the element followed by the letter a.
  • a In the rear facet of the projections ... a open blowing orifices referenced by the reference of the element followed by the letter b .
  • the projection references ... a only appear for the bar 200, and only one blowing orifice is referenced per element in the bar 200.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Incineration Of Waste (AREA)
  • Baking, Grill, Roasting (AREA)
  • Cookers (AREA)
  • Chain Conveyers (AREA)
  • Laser Beam Processing (AREA)
  • Sewage (AREA)
  • Cereal-Derived Products (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Solid-Fuel Combustion (AREA)
  • Gasification And Melting Of Waste (AREA)
EP88400038A 1987-01-09 1988-01-08 Feuerungsrost mit Querroststäben, die an ihren Vorderseiten miteinander verbunden sind Expired - Lifetime EP0277053B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88400038T ATE54024T1 (de) 1987-01-09 1988-01-08 Feuerungsrost mit querroststaeben, die an ihren vorderseiten miteinander verbunden sind.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8700140A FR2609530B1 (fr) 1987-01-09 1987-01-09 Grille de foyer, avec des barreaux transversaux en elements solidarises par leurs faces frontales
FR8700140 1987-01-09

Publications (2)

Publication Number Publication Date
EP0277053A1 true EP0277053A1 (de) 1988-08-03
EP0277053B1 EP0277053B1 (de) 1990-06-20

Family

ID=9346760

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88400038A Expired - Lifetime EP0277053B1 (de) 1987-01-09 1988-01-08 Feuerungsrost mit Querroststäben, die an ihren Vorderseiten miteinander verbunden sind

Country Status (9)

Country Link
US (1) US4776287A (de)
EP (1) EP0277053B1 (de)
JP (1) JP2609653B2 (de)
AT (1) ATE54024T1 (de)
CA (1) CA1284070C (de)
DE (1) DE3860249D1 (de)
ES (1) ES2016411B3 (de)
FR (1) FR2609530B1 (de)
GR (1) GR3000851T3 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3348904A1 (de) * 2017-01-11 2018-07-18 Richard Kablitz GmbH Rost für feuerungsanlagen

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK169218B1 (da) * 1992-10-06 1994-09-12 Smidth & Co As F L Ristelement til en ristbund, f.eks i en klinkerkøler
ATE165433T1 (de) * 1993-10-21 1998-05-15 Asea Brown Boveri Rost für eine feuerungsanlage
DE19910425C2 (de) 1999-03-10 2000-12-28 Teset Ag Weismes Waimes Rostsystem für einen Brennstoffkessel
JP6550331B2 (ja) * 2015-12-28 2019-07-24 クボタ環境サ−ビス株式会社 火格子及びストーカ式焼却炉の炉床
DE102020003114A1 (de) * 2020-05-25 2021-11-25 Martin GmbH für Umwelt- und Energietechnik Roststab, Roststabanordnung und Verfahren zum Betreiben einer Roststabanordnung
EP3982044B1 (de) * 2020-10-08 2024-04-24 Martin GmbH für Umwelt- und Energietechnik Verfahren zum zusammenhalten von nebeneinander liegenden roststäben sowie eine roststabanordnung

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0056139A2 (de) * 1980-12-24 1982-07-21 W + E Umwelttechnik AG Feuerungsrost für einen Verbrennungsofen

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2250067A (en) * 1938-02-03 1941-07-22 Martin Josef Mechanical stoker
DE2805712C2 (de) * 1978-02-10 1980-01-31 Josef Martin Feuerungsbau Gmbh, 8000 Muenchen Roststab, insbesondere für mechanisch bewegte Schürroste von Großfeuerungen
DE2808057C2 (de) * 1978-02-24 1980-02-14 Josef Martin Feuerungsbau Gmbh, 8000 Muenchen Rostbelag für mechanisch bewegte stufenförmige Feuerungsroste von Großfeuerungen
DE3330636C1 (de) * 1983-08-24 1985-01-10 Martin GmbH für Umwelt- und Energietechnik, 8000 München Rostbelag fuer mechanisch bewegte stufenfoermige Feuerungsroste von Grossfeuerungen
FR2574160A1 (fr) * 1984-11-30 1986-06-06 Electricite De France Grille de foyer realisee a partir d'elements permettant un controle ameliore de l'apport en air primaire
FR2599125B1 (fr) * 1986-05-22 1989-07-21 Mediterranee Const Navales Ind Dispositif de liaison de barreaux d'une grille a mouvement de recul d'un foyer de combustion

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0056139A2 (de) * 1980-12-24 1982-07-21 W + E Umwelttechnik AG Feuerungsrost für einen Verbrennungsofen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3348904A1 (de) * 2017-01-11 2018-07-18 Richard Kablitz GmbH Rost für feuerungsanlagen

Also Published As

Publication number Publication date
FR2609530B1 (fr) 1991-01-11
EP0277053B1 (de) 1990-06-20
ATE54024T1 (de) 1990-07-15
CA1284070C (fr) 1991-05-14
JP2609653B2 (ja) 1997-05-14
JPS63279016A (ja) 1988-11-16
GR3000851T3 (en) 1991-11-15
ES2016411B3 (es) 1990-11-01
DE3860249D1 (de) 1990-07-26
FR2609530A1 (fr) 1988-07-15
US4776287A (en) 1988-10-11

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