EP0205658B1 - Grille pour chambres de combustion consommant un combustible solide ou pâteux - Google Patents

Grille pour chambres de combustion consommant un combustible solide ou pâteux Download PDF

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Publication number
EP0205658B1
EP0205658B1 EP85114410A EP85114410A EP0205658B1 EP 0205658 B1 EP0205658 B1 EP 0205658B1 EP 85114410 A EP85114410 A EP 85114410A EP 85114410 A EP85114410 A EP 85114410A EP 0205658 B1 EP0205658 B1 EP 0205658B1
Authority
EP
European Patent Office
Prior art keywords
plates
packs
row
plate
hollow
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
EP85114410A
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German (de)
English (en)
Other versions
EP0205658A3 (en
EP0205658A2 (fr
Inventor
Gustav Dr. Hc. Ospelt
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.)
Hoval Interliz AG
Original Assignee
Hoval Interliz 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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6782319&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0205658(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Hoval Interliz AG filed Critical Hoval Interliz AG
Priority to AT85114410T priority Critical patent/ATE43431T1/de
Publication of EP0205658A2 publication Critical patent/EP0205658A2/fr
Publication of EP0205658A3 publication Critical patent/EP0205658A3/de
Application granted granted Critical
Publication of EP0205658B1 publication Critical patent/EP0205658B1/fr
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
    • F23H7/00—Inclined or stepped grates
    • F23H7/06—Inclined or stepped grates with movable bars disposed parallel to direction of fuel feeding
    • F23H7/08—Inclined or stepped grates with movable bars disposed parallel to direction of fuel feeding reciprocating along their axes

Definitions

  • grate plates are arranged in an inclined grate path, the inclination of which is slightly less than the angle of repose of the respective solid fuel type, and in which the grate plates generally perform a reciprocating movement through which the grate track is waved to move the fuel layer down over the sloping grate track.
  • the combustion air is introduced below the grate track and let through the grate plates into the fuel layer.
  • grate plates are used, which form horizontal channels between their stair-like overlapping plate edges and only allow the combustion air to pass through them into the fuel layer.
  • Rust plates of this type are e.g. from US-A-4 170 183 and FR-A-2 019 852.
  • the invention is based, for combustion chambers of such boiler-type combustion devices, which belong more to the type and size of the conventional boilers for hot water heating systems of buildings and in which for the ash removal of the combustion chamber which can be fired with various types of solid fuels, the design and use of the constructional and for space reasons It is not possible to use push and slide grates that are common in large combustion plants to create a feed grate that moves the fire or ash bed effectively and reliably even with the horizontal direction of movement of the fuel layer and discharges the combustion residues from the combustion chamber, which causes fuel or ash to fall through the grate track avoids and thereby makes additional devices under the grate track for removing residues that have fallen through unnecessary, but on the other hand distributes the combustion air over a large area over the grate surface t introduces into the fuel layer.
  • the moving grate moving at the bottom of a combustion chamber 6 with filler opening 7 and ash removal opening 8 consists of several horizontal plates 1 - 5 which lie in a row in a step-like manner, the uppermost plate 1 being located at the end of the combustion chamber 6 containing the filler opening 7, and which form a closed grate level that is impermeable to fuel and ash.
  • the plates 1 - 5 are horizontally displaceable in side guides.
  • the plates 1, 3 and 5, which are odd in order, and the even plates 2, 4 are each connected to form a package.
  • the plates 1, 3, 5 and the plates 2, 4 are offset in the row direction by the same horizontal dimension between their front edges.
  • the two packages can be displaced relative to each other, up to the horizontal dimension of the displacement of the front edges of the panels, so that e.g. the plate 1 moves from the position of FIG. 1 on the plate 2 to the position of FIG. 2 and thereby pushes the bed of fire or ash lying on the plate 2 down to the plate 3.
  • the plate 2 pushes the fire or. Ash bed on plate 4 further.
  • This relative movement of the two plate packs against one another can take place due to the displaceability of only one of the two packets, the stroke of which would then have to correspond to the entire horizontal dimension of the displacement of the plate front edges.
  • both plate packs In order to shorten the overall length of the feed grate, it is advantageous to design both plate packs to be displaceable in accordance with the exemplary embodiment shown, the stroke length of each plate pack then only having to correspond to half the horizontal dimension of the displacement of the plate front edges.
  • the package with the odd plates 1, 3, 5 is coupled by a linkage 9 with a controllable drive device 10 and the package with the even plates 2, 4 by a linkage 11 with a controllable drive device 12.
  • the stroke size of the drive devices 10 and 12 or the coupled plate packs can be changed, so that even smaller strokes of the plate packs can be set as the horizontal dimension of the displacement of the plate front edges.
  • the combustion air is fed into the fuel layer in that the plates consist of at least one of the packs of hollow boxes which are connected to an air supply line and are provided on their upper box wall 13 with a large number of small, nozzle-like air blow-out holes 14 distributed over the box surface (FIG 3).
  • the even plates 2 and 4 are designed as hollow boxes, the amount of air blown from them into the fuel layer can be regulated by pushing the odd plates 1 and 3 more or less out of the position in FIG. 1 and the surface of the hollow box plates 2 , 4 cover.
  • the plates of both packages are advantageously designed as hollow boxes.
  • the linkages 9 and 11 can be formed as a hollow linkage for the air supply in the box girder plates of both packages.
  • the quantity regulation of the air emerging from the straight hollow box plates 2, 4 can take place through the variable cover by means of the hollow box plates 1, 3 and the quantities can then be covered with this cover Regulation of the air emerging from the odd hollow box plates 1, 3, 5 take place in that a common air flap, not shown, is arranged in their air supply or hollow rod assembly 9.
  • the formation of the plates consisting of hollow boxes with a large number of fine air-blowing nozzles distributed over the plate surface results in a fine and uniform distribution of the air blown into the fuel layer.
  • the fine air jets emerging from the nozzle holes are shifted from one entry point into the ember bed to another entry point, so that the plurality of the box girder plates go up escaping fine air jets and their displaceability compared to the ember bed results in a uniform ember bed combustion.
  • the plates When formed as hollow boxes, the plates form a grate level which is completely closed at the bottom, so that separate, additional devices under the feed grate for removing quantities of fuel or ash which have fallen through are unnecessary.
  • the blowing out of the combustion air from the hollow boxes in a large number of fine air jets with the aid of a large number of fine nozzle holes on the one hand brings about intensive cooling, in particular also the upper wall 13 of the hollow boxes, which can thereby be produced from conventional casting material for fire grates, and on the other hand prevents fuel dust or ash dust against the flow velocity of the fine air jets emerging from the nozzle holes can fall through the nozzle holes into the hollow box.
  • the hollow boxes consist of a lower part 15 with an opening hollow rod 11 or 9 and a removable upper hollow box wall 13, so that the hollow box can be opened by lifting off the upper wall 13 to remove any solid particles that have fallen into it .

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Solid-Fuel Combustion (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)
  • Incineration Of Waste (AREA)

Claims (5)

1. Grille pour chambre de combustion cosom- mant des combustibles solides ou pâteux, caractérisée en ce que, pour la réalisation d'un plan de grille fermé ne laissant passer ni le combustible ni les cendres, plusieurs plaques ( 1 à 5) qui se suivent dans une direction essentiellement horizontale se superposent de manière à former un escalier dans lequel la plaque la plus élevée se trouve à l'extrémité de la chambre de combustion (6) où s'effectue le chargement, en ce que les plaques dont les numéros d'ordre sont impairs (1, 3, 5) et les plaques dont les numéros d'ordre sont pairs (2, 4) sont respectivement reliées chacune en un paquet, les bords antérieurs des plaques des deux paquets étant décalés de la même mesure horizontale dans le sens de succession, en ce que l'un au moins des paquets peut se déplacer dans la direction dans laquelle les plaques se suivent et est accouplé avec un dispositif d'entraînement pouvant être commandé (10 ou 12) dont la course peut être modifiée, les deux paquets pouvant se déplacer l'un par rapport à l'autre jusqu'à une distance horizontale correspondant au décalage entre les bords antérieurs des plaques et en ce que les plaques de l'un des paquets au moins sont constitués par des caissons creux (13, 15) qui sont reliés à une canalisation (9 ou 11) d'amenée de l'air et comportant, dans leur paroi de eaisson supérieure (13), une multiplicité de petits trous (14) de soufflage de l'air en forme de buses qui sont réparties sur la surface du caisson.
2. Grille selon la revendication 1, caractérisée en ce que les deux paquets de plaques sont accouplés chacun à un dispositif d'entraînement pouvant être commandé (10 ou 12) et peuvent se déplacer dans le sens dans lequel les plaques se suivent, chaque paquet pouvant se déplacer jusqu'à la moitié de la mesure du décalage horizontal des bords antérieurs des plaques dans le sens où elles se suivent, et en ce que les plaques des deux paquets sont constituées par des caissons creux (13, 15).
3. Grille selon la revendication 1 ou 2, caractérisée en ce que les plaques d'un même paquet constituées par des caissons creux sont reliées au dispositif d'entraînement par une tringlerie qui, en même temps, peut être constituée par des barres creuses amenant de l'air.
4. Grille selon l'une des revendications 1 à 3, caractérisée en ce que les caissons creux sont constitués par une partie inférieure (15) comportant une conduite d'amenée de l'air et par une paroi supérieure (13) qui contient les trous de buses (14) assurant le soufflage de l'air et est posée de manière amovible sur la partie inférieure.
5. Grille selon la revendication 2, caractérisée en ce que la canalisation comune (9) qui amène l'air aux caissons creux (1, 3, 5) de l'un des paquets de plaques comporte un clapet de réglage et que le débit de l'air qui sort des caissons creux (2, 4) de l'autre paquet de plaques peut être réglé en recouvrant les trous de buses (14) de ces caissons creux (2, 4) au moyen des caissons creux (1, 3, 5) du premier paquet de plaques qui les recouvrent plus ou moins.
EP85114410A 1985-06-20 1985-11-13 Grille pour chambres de combustion consommant un combustible solide ou pâteux Expired EP0205658B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85114410T ATE43431T1 (de) 1985-06-20 1985-11-13 Vorschubrost fuer verbrennungskammern zur verfeuerung fester oder pastenfoermiger brennstoffe.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8517925U 1985-06-20
DE8517925U DE8517925U1 (de) 1985-06-20 1985-06-20 Vorschubrost für Verbrennungskammern zur Verfeuerung fester oder pastenförmiger Brennstoffe

Publications (3)

Publication Number Publication Date
EP0205658A2 EP0205658A2 (fr) 1986-12-30
EP0205658A3 EP0205658A3 (en) 1987-05-13
EP0205658B1 true EP0205658B1 (fr) 1989-05-24

Family

ID=6782319

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85114410A Expired EP0205658B1 (fr) 1985-06-20 1985-11-13 Grille pour chambres de combustion consommant un combustible solide ou pâteux

Country Status (4)

Country Link
EP (1) EP0205658B1 (fr)
JP (1) JPS61295412A (fr)
AT (1) ATE43431T1 (fr)
DE (2) DE8517925U1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4105330C1 (fr) * 1991-02-18 1992-08-06 Noell - K + K Abfalltechnik Gmbh, 4040 Neuss, De

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2321099A (en) * 1997-01-10 1998-07-15 Cornwell Heat Ltd Solid fuel boiler.
FI108258B (fi) * 2000-04-26 2001-12-14 Topi Paemppi Menetelmä porrastetun arinan liikuttamiseksi kiinteän polttoaineen polttouunissa
DE112011100719B4 (de) * 2010-03-01 2015-02-26 Plascoenergy Ip Holdings, S.L., Bilbao, Schaffhausen Branch Laterales Transfersystem
JP2011191041A (ja) * 2010-03-16 2011-09-29 Yamamoto Co Ltd 木質ペレット燃焼装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1526071B1 (de) * 1966-03-16 1970-04-30 Haniel & Lueg Gmbh Abfall-Verbrennungsrost mit schwenkbaren Rostabschnitten
FR1545633A (fr) * 1967-07-05 1968-11-15 Four incinérateur pour ordures ménagères
CH514809A (it) * 1968-10-03 1971-10-31 Fonderie E Officine Di Saronno Griglia meccanica per impianti di incenerimento di rifiuti solidi
US4170183A (en) * 1977-10-20 1979-10-09 Energy Generation, Inc. Incinerating method and apparatus having selective, controlled movement of materials during combustion

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4105330C1 (fr) * 1991-02-18 1992-08-06 Noell - K + K Abfalltechnik Gmbh, 4040 Neuss, De

Also Published As

Publication number Publication date
DE3570510D1 (en) 1989-06-29
ATE43431T1 (de) 1989-06-15
JPS61295412A (ja) 1986-12-26
DE8517925U1 (de) 1986-10-16
EP0205658A3 (en) 1987-05-13
EP0205658A2 (fr) 1986-12-30

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