EP0790464B1 - Grille de combustion, de préférence pour incinérateurs de déchets - Google Patents

Grille de combustion, de préférence pour incinérateurs de déchets Download PDF

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Publication number
EP0790464B1
EP0790464B1 EP97100975A EP97100975A EP0790464B1 EP 0790464 B1 EP0790464 B1 EP 0790464B1 EP 97100975 A EP97100975 A EP 97100975A EP 97100975 A EP97100975 A EP 97100975A EP 0790464 B1 EP0790464 B1 EP 0790464B1
Authority
EP
European Patent Office
Prior art keywords
grate
furnace
piston
plate
cylinder
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
EP97100975A
Other languages
German (de)
English (en)
Other versions
EP0790464A2 (fr
EP0790464A3 (fr
Inventor
Walter Josef Martin
Johannes Josef Edmund Martin
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.)
Martin GmbH fuer Umwelt und Energietechnik
Original Assignee
Martin GmbH fuer Umwelt und Energietechnik
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 Martin GmbH fuer Umwelt und Energietechnik filed Critical Martin GmbH fuer Umwelt und Energietechnik
Priority to SI9730185T priority Critical patent/SI0790464T1/xx
Publication of EP0790464A2 publication Critical patent/EP0790464A2/fr
Publication of EP0790464A3 publication Critical patent/EP0790464A3/fr
Application granted granted Critical
Publication of EP0790464B1 publication Critical patent/EP0790464B1/fr
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 firing grate, in particular for waste incineration plants, with partially overlapping Rows of grate bars, with the rows of grate bars alternating fixed and movable in the longitudinal direction of the grate bars are and with the grate bar rows by grate side plates are limited, which are movably supported transversely to their longitudinal direction and by clamping devices that are held in the furnace wall against which rows of grates can be pressed, whereby the tensioning devices comprise pressure members which in to Firebox open guides are guided.
  • grate side plates on grate bar signs i.e. special guides that are U-shaped to the guided above and below edges
  • the grate bar signs are attached to the grate bar supports.
  • tensioners serve hydraulic cylinders at the ends of the Grate side plates are provided, each hydraulic Unit on both ends of adjacent grate side plates presses.
  • the grate bars which are immobile in the longitudinal direction, lie thereby directly on the grate side plates, while for the longitudinally movable grate bars in the Grid side plates slider is provided on the an additional hydraulic cylinder unit acts with their plunger reaches freely through the grate side plate.
  • the object of the invention is to provide a grate according to the The preamble of claim 1 to further design that relatively little design effort largely trouble-free operation of the grate and the Clamping devices including the grate side plates is guaranteed.
  • the piston shirt a length that is greater than the cylinder depth. So is with all lifting movements that this clamping device in Rust operation must always have a sufficient guide length of the piston inside the cylinder.
  • Piston guide which is good Piston guide and thus for a tilt-proof guide the grate side plate is advantageous is that in the Cross section of circular piston whose diameter is larger than half the grate plate height. Because of this large size the cylinder and the piston of the clamping device, which is also the guide for the Grate side plate is, with little design effort safe guidance of the grate side plates, even in the event of faults in grate operation, guaranteed by the penetration of Solids caused between adjacent grate bars can be.
  • each other by guide rods connected with their free ends articulated to each attack adjacent pistons.
  • These guide rods not only act as an anti-twist device in cross-section circular pistons, but also serve adjacent ones To influence the pistons of adjacent clamping devices that a certain entrainment of a piston the neighboring pistons.
  • This allows the additional Clamping devices according to the state of the above Technology that reaches directly through the grate side panels act on the movable rows of grate bars, whereby the enormous technical effort of the known Rust formation can be largely avoided.
  • the grate side plates are double-walled be and a support plate connected to the piston and a rust limitation plate made of high-temperature resistant Include material on their, the support plate facing side transverse to the longitudinal direction Has support ribs.
  • the grate side plate its dimensions are smaller than usual because it is covered by the rust control plate, the correspondingly larger dimensions in height and if necessary can also have in length.
  • the grate limiting plate can have several in Longitudinal direction of the support plate with little play to each other arranged sub-panels include, the total length of the Length of the support plate corresponds.
  • a further advantageous embodiment of the invention exists in that the grate side plates or the grate limiting plates at its top edge one towards the furnace wall have protruding flange which from one to the Oven wall attached cover strip covered with little play is. This will provide some protection against intrusion Dust and coarser particles brought about without such a cover get behind the grate side plates could.
  • Such Sealing bodies consist of mineral in a known manner Materials that are correspondingly heat-resistant and one have sufficient elasticity to accommodate the movements of the Sealing the grate side plate or the grate limiting plate to be able to follow.
  • Another improvement in the seal is that on the back of the grate side plate or the support plate arranged in the longitudinal direction of the same extending web is, which engages sealingly in a groove of the sealing body.
  • the spring element can be adjustable in its preload.
  • a furnace wall labeled 1 has a grate height Return 2, in which several, labeled 3 in total Clamping devices are arranged.
  • Any jig includes a cylinder open to the combustion chamber side 4, which is flush with the bottom 5 of the Recess 2, for example, fixed by a weld 6 is.
  • a hollow piston 7 In the cylinder 4 is a hollow piston 7 with its Piston shirt 8 guided and sealed by a seal 9, so that no dust can enter the interior of the cylinder 4 can.
  • the piston skirt 8 is longer than the cylinder depth executed so that it is always safe with all lifting movements is led.
  • a support plate 12 firmly connected to the individual rust control plates to protect them against the effects of heat 13 are attached, for which the grate limiting plate 14 ribs in the area of its upper bent end 15 with hanging grooves 16.
  • the rust control plate 13 has at its upper edge one directed towards the open wall Flange 17, the free end 18 against one elastic sealing body 19 presses by means of a bracket 20 held at the bottom 5 of the recess 2 of the furnace wall 1 is.
  • a cover strip 21 is also provided on the furnace wall, with an upward bend 22 over the flange 17 of the grate limiting plate 13 with little Distance lies, whereby a cavity 23 through the offset 22 arises, which largely covers the flange 17 is so that a relaxation room like a labyrinth seal arises.
  • a compression spring 26 is provided in the interior of the hollow piston 7, with one end on the piston crown 10 and with is supported at its other end on a replacement bearing 27, which in Shape of the inner diameter of the hollow piston 7 essentially matched plate and at the end of an adjusting screw 28 is seated, which is attached to the cylinder base 29 Nut 30 screwed in and through a lock nut 31 is secured.
  • the set screw 28 points to its outside the end of the cylinder 4 a handle 32 in the form of a head with a through hole 33 into which a correspondingly thick rod for turning the set screw 28 is insertable to adjust the bias of the compression spring 26 to be able to.
  • the piston 7 is so far beyond the cylinder 4 that the Rust control plates 13 essentially with the furnace wall 1 align.
  • Within the free space caused by the return 2 is formed, are adjacent pistons 7 by guide rods 34 connected in an articulated manner.
  • guide rods 34 connected in an articulated manner.
  • the piston skirt 8 of each piston 7 on both sides of the same Retaining tabs 35, for example fastened by welding, which receive the respective guide rod 34 between them, one through the retaining tabs 35 and the guide rod 34 hinge pin 36 inserted through the hinge connection manufactures.
  • a tensioning device 3 is assigned to each support plate 12, through which the support plate is held and guided, with the Achieving good guidance of the pistons 7 and the associated ones Cylinders 4 have the largest possible diameter, the piston diameter being almost the height of the support plate 12 corresponds.
  • the large length of the piston shirt 8 carries also for a stable guidance of the piston and thus the Support plate 12 at.
  • Each support plate 12 can either be one Grate bar row can be assigned or the support plates can also have a greater length so that they are part of the subsequent row of grate bars or even several rows of grate bars can spread. So that the support plates the occurring Can withstand pressures are on the back of the same Web 37, for example, fixed by welding.
  • Figure 4 shows a variant in the seal between the Rust control plates and the furnace wall.
  • the change is that the sealing body 19 'has a greater height and is provided with a groove 40 into which an extended Web 37 'penetrates to achieve an additional seal.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Incineration Of Waste (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Processing Of Solid Wastes (AREA)
  • Fertilizers (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Gasification And Melting Of Waste (AREA)
  • Paper (AREA)

Claims (13)

  1. Grille de foyer, en particulier pour des installations d'incinération d'ordures ménagères avec des rangées de barreaux de grille se chevauchant partiellement, dans laquelle les rangées de barreaux de grille sont alternativement fixes et mobiles dans la direction longitudinale des barreaux de grille et dans laquelle les rangées de barreaux de grille sont limitées par des flancs de grille (12, 13), qui sont supportés de façon mobile transversalement à leur direction longitudinale et qui peuvent être pressés contre les rangées de barreaux de grille par des dispositifs de serrage (3) qui sont maintenus dans la paroi de four (1), dans laquelle les dispositifs de serrage (3) comprennent des organes de poussée (7), qui sont guidés dans des guides (4) ouverts vers le foyer, caractérisée en ce que chaque flanc (12, 13) est fixé à l'organe de poussée (7) du dispositif de serrage (3) et n'est soutenu et guidé exclusivement que par celui-ci, en ce que le guide a la forme d'un cylindre (4) fermé sur le côté situé à l'opposé du côté foyer et l'organe de pression a la forme d'un piston creux (7) guidé dans le cylindre (4), qui est chargé par un élément élastique (26) installé dans le piston creux (7), dont l'effort antagoniste agit sur le fond du cylindre (29), et qui est attaché par son fond de piston (10) au flanc de grille (12, 13) et guidé de façon étanche (9) par sa jupe de piston (8) dans le cylindre (4).
  2. Grille de foyer suivant la revendication 1, caractérisée en ce que la jupe de piston (8) présente une longueur qui est supérieure à la profondeur du cylindre.
  3. Grille de foyer suivant la revendication 1 ou 2, caractérisée en ce que, lorsque le piston (7) est de section transversale circulaire, son diamètre est supérieur à la moitié de la hauteur des flancs.
  4. Grille de foyer suivant l'une quelconque des revendications 1 à 3, caractérisée en ce que des pistons voisins (7) sont reliés les unes aux autres par des tiges de guidage (34), qui sont articulées par leurs extrémités libres à des pistons voisins respectifs (7).
  5. Grille de foyer suivant la revendication 4, caractérisée en ce que l'articulation entre un piston (7) et une tige de guidage (34) comprend un pivot d'articulation (36) placé perpendiculairement à l'axe longitudinal du piston et traversant la tige de guidage (34), qui est maintenu dans des pattes de support (35) fixées sur le piston (7) et recevant entre elles la tige de guidage (34).
  6. Grille de foyer suivant l'une quelconque des revendications 1 à 5, caractérisée en ce que les cylindres (4) sont fixés avec leurs extrémités ouvertes au niveau du fond (5) d'une niche du four ou d'une partie en retrait du four (2), dont la profondeur est dimensionnée de telle façon que les flancs de grille (12, 13) soient alignés avec la paroi du four (1) à la température de fonctionnement des barreaux de grille.
  7. Grille de foyer suivant l'une quelconque des revendications 1 à 6, caractérisée en ce que les flancs de grille sont à double paroi et comprennent une plaque portante (12) assemblée au piston (7) ainsi qu'une plaque de limitation de grille (13) suspendue à celle-ci, qui présente sur sa face tournée vers la plaque portante (12) des nervures d'appui (38) orientées transversalement à la direction longitudinale.
  8. Grille de foyer suivant la revendication 7, caractérisée en ce que la plaque de limitation de grille (13) comprend plusieurs plaques partielles disposées en direction longitudinale de la plaque portante (12) avec un faible jeu (24) l'une par rapport à l'autre, dont la longueur totale correspond à la longueur totale de la plaque portante (12).
  9. Grille de foyer suivant l'une quelconque des revendications 1 à 8, caractérisée en ce que les flancs de grille (12, 13), respectivement les plaques de limitation de grille (13), présentent à leur bord supérieur une bride (17) en saillie vers la paroi du four (1), qui est recouverte avec un faible jeu par une plaque de recouvrement (21) fixée à la paroi du four.
  10. Grille de foyer suivant la revendication 9, caractérisée en ce qu'un corps d'étanchéité (19) à déformation élastique, fixé à la paroi du four (1), est inséré entre le bord libre (18) de la bride (17) du flanc de grille (12, 13), respectivement de la plaque de limitation de grille (13), et la paroi du four (1).
  11. Grille de foyer suivant la revendication 10, caractérisée en ce qu'au dos du flanc de grille (12, 13), respectivement de la plaque portante (12), est disposée une aile (37') s'étendant en direction longitudinale de celui-ci, qui s'engage de façon étanche dans une rainure (40) du corps d'étanchéité (19').
  12. Grille de foyer suivant l'une quelconque des revendications 9 à 11, caractérisée en ce que la face de la plaque de recouvrement (21) tournée vers la bride (17) présente un espace creux (23) formé vers le haut par une ondulation (22) de la plaque de recouvrement (21).
  13. Grille de foyer suivant l'une quelconque des revendications 1 à 12, caractérisée en ce que l'élément élastique (26) présente une tension initiale réglable.
EP97100975A 1996-02-19 1997-01-22 Grille de combustion, de préférence pour incinérateurs de déchets Expired - Lifetime EP0790464B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI9730185T SI0790464T1 (en) 1996-02-19 1997-01-22 Combustion grate, especially for waste incinerators

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19606107 1996-02-19
DE19606107A DE19606107C1 (de) 1996-02-19 1996-02-19 Feuerungsrost, insbesondere für Müllverbrennungsanlagen

Publications (3)

Publication Number Publication Date
EP0790464A2 EP0790464A2 (fr) 1997-08-20
EP0790464A3 EP0790464A3 (fr) 1997-11-26
EP0790464B1 true EP0790464B1 (fr) 2001-06-06

Family

ID=7785800

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97100975A Expired - Lifetime EP0790464B1 (fr) 1996-02-19 1997-01-22 Grille de combustion, de préférence pour incinérateurs de déchets

Country Status (18)

Country Link
US (1) US5722334A (fr)
EP (1) EP0790464B1 (fr)
JP (2) JP2948769B2 (fr)
AT (1) ATE201926T1 (fr)
BR (1) BR9701004A (fr)
CA (1) CA2197741C (fr)
CZ (1) CZ292636B6 (fr)
DE (2) DE19606107C1 (fr)
DK (1) DK0790464T3 (fr)
ES (1) ES2159780T3 (fr)
NO (1) NO308712B1 (fr)
PL (1) PL182698B1 (fr)
PT (1) PT790464E (fr)
RU (1) RU2116572C1 (fr)
SG (1) SG52919A1 (fr)
SI (1) SI0790464T1 (fr)
TW (1) TW316287B (fr)
UA (1) UA29508C2 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7766013B2 (en) * 2001-06-05 2010-08-03 Alexza Pharmaceuticals, Inc. Aerosol generating method and device
GB2413473B (en) * 2005-02-17 2006-05-10 Wildbird J C Foods Ltd Bird feeder port
JP5087221B2 (ja) * 2005-12-06 2012-12-05 株式会社荏原製作所 ストーカ式燃焼装置
JP4987883B2 (ja) 2006-02-01 2012-07-25 ディバーシー・インコーポレーテッド 清掃具を床清掃機に連結する装置及び方法
CN101078521B (zh) * 2006-05-24 2011-02-16 顾利平 一种炉排长销校正结构
CH701280B1 (de) * 2007-08-22 2010-12-31 Doikos Investments Ltd Flüssigkeitsgekühlte Rostplatte mit Verschleissplatten und aus solchen Rostplatten bestehender Stufenrost.
KR101175294B1 (ko) * 2012-03-02 2012-08-20 이승우 폐기물 소각장치용 화격자 간격유지장치
KR101230383B1 (ko) * 2012-06-20 2013-02-12 지이큐솔루션 주식회사 측면 수냉각을 통해 수냉식 화격자 상의 클링커를 억제하는 스토커 소각로
CN109060352B (zh) * 2018-10-22 2020-01-07 浙江国际海运职业技术学院 轴系的轴承负荷测试方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE371535A (fr) *
US1565017A (en) * 1924-06-14 1925-12-08 Locomotive Stoker Co Resilient trough support
US2356144A (en) * 1942-03-09 1944-08-22 Detroit Stoker Co Traveling grate for stokers
US4328786A (en) * 1979-11-30 1982-05-11 Clayware Pty. Ltd. Coal burning grate
US4418816A (en) * 1981-10-19 1983-12-06 Lev Kropp Inertial conveyor
FR2661235B1 (fr) * 1990-04-23 1992-07-31 Traitement Indl Residus Urbains Poutre formant joint de dilatation entre deux nappes de grilles de foyer accolees, avec des barreaux alternativement fixes et mobiles.
DE4105331C1 (fr) * 1991-02-18 1992-04-16 Noell - K + K Abfalltechnik Gmbh, 4040 Neuss, De
US5377663A (en) * 1993-06-07 1995-01-03 Wheelabrator Environmental Systems, Inc. Grate combustion system

Also Published As

Publication number Publication date
ES2159780T3 (es) 2001-10-16
CZ292636B6 (cs) 2003-11-12
CZ48797A3 (en) 1997-09-17
SI0790464T1 (en) 2001-12-31
PT790464E (pt) 2001-11-30
ATE201926T1 (de) 2001-06-15
EP0790464A2 (fr) 1997-08-20
DE59703704D1 (de) 2001-07-12
JPH09318033A (ja) 1997-12-12
DE19606107C1 (de) 1997-02-13
RU2116572C1 (ru) 1998-07-27
PL182698B1 (pl) 2002-02-28
PL318519A1 (en) 1997-09-01
BR9701004A (pt) 1998-10-27
SG52919A1 (en) 1998-09-28
JP3103066B2 (ja) 2000-10-23
JP2948769B2 (ja) 1999-09-13
NO308712B1 (no) 2000-10-16
DK0790464T3 (da) 2001-09-17
NO970720D0 (no) 1997-02-17
JPH11218319A (ja) 1999-08-10
CA2197741A1 (fr) 1997-08-20
NO970720L (no) 1997-08-20
US5722334A (en) 1998-03-03
CA2197741C (fr) 2000-05-30
EP0790464A3 (fr) 1997-11-26
TW316287B (fr) 1997-09-21
UA29508C2 (uk) 2000-11-15

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