EP1004822B1 - Agencement de grille poussante pour une chaudière à combustible solide ou pour une installation similaire - Google Patents

Agencement de grille poussante pour une chaudière à combustible solide ou pour une installation similaire Download PDF

Info

Publication number
EP1004822B1
EP1004822B1 EP99115440A EP99115440A EP1004822B1 EP 1004822 B1 EP1004822 B1 EP 1004822B1 EP 99115440 A EP99115440 A EP 99115440A EP 99115440 A EP99115440 A EP 99115440A EP 1004822 B1 EP1004822 B1 EP 1004822B1
Authority
EP
European Patent Office
Prior art keywords
grate
stepped
movable
unit
assembly
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
EP99115440A
Other languages
German (de)
English (en)
Other versions
EP1004822A1 (fr
Inventor
Karl Ackermann
Konrad Brandl
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.)
Hdg Bavaria Heizkessel & Anlagenbau GmbH
Original Assignee
Hdg Bavaria Heizkessel & Anlagenbau GmbH
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 Hdg Bavaria Heizkessel & Anlagenbau GmbH filed Critical Hdg Bavaria Heizkessel & Anlagenbau GmbH
Publication of EP1004822A1 publication Critical patent/EP1004822A1/fr
Application granted granted Critical
Publication of EP1004822B1 publication Critical patent/EP1004822B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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

  • the invention relates to a step grating arrangement in the preamble of independent claim 1 specified Art.
  • Shear grate systems of incineration plants especially step grate systems, tolerate a very wide range of one Fuel supply in terms of particle size, moisture content and flowability. To achieve a good burnout, can the layer height of the fuel on the grate in the course to some extent affected by combustion.
  • the object of the invention is to provide a step grating arrangement for a solid fuel boiler or the like, which is simple and which is nevertheless the Layer height of the fuel on the grate for an optimal Burnout can be finely influenced or fine-tuned.
  • the essence of the invention is that the rigid and flexible Grate elements in cross-section have an angular shape and are perforation-free Large horizontal legs across the fuel delivery direction or to the ash discharge direction.
  • the grate elements according to the invention in angular form are special dimensionally stable and easy to manufacture preferably extruded, cut to length structural steel angle iron, the as rust elements in solid fuel boilers or the like be used for the first time.
  • the vertical web is used as a heat sink for the grate element become (large surface).
  • the combustion air of the (Primary air) sweeps past the vertical webs, cools the rust elements and thus protects them from thermal destruction. Heat is also exerted on the angle by the heat load Part of the grate elements directed into the cooling air space.
  • the combustion air is preheated, which is positive affects the combustion.
  • the vertical legs of the angled grate elements are preferred at a base of the rigid or movable grate unit (loose) plug-in, which not only makes the grate elements can be easily installed and replaced, but with Advantage adjustable in height and possibly also laterally can be stored with little play. With the horizontal linear stroke movement a changed air gap can thus occur during operation can be achieved. This change in cross-section creates several Flow velocities of the primary feed Combustion air and ensures an even burnout and a clean rust surface.
  • US 5 069 146 A is a stepped grate arrangement known type.
  • the well-known grate arrangement but has no angled grate elements according to the invention, whose vertical legs are plug-in, and therefore the aforementioned advantages of the invention and their developments are also not achievable.
  • the ember bed thickness or layer height of the fuel can thus depending on the (if necessary adjustable) speed the movement of the movable grate elements and (if necessary adjustable) stroke length and / or by regulated Interval operation of the grate drive according to the invention very much can be finely regulated, which enables optimal unwinding becomes.
  • the fuel material travels on the step grate different temperature zones. This is the fuel dried, degassed and finally completely burned. The combustion residues arrive at the end of the step grate in an ash pan with preferably automatic Ash removal through a rotating ash removal screw.
  • the combustion air becomes the fuel from below supplied over a large area or through many slots.
  • This Air flow according to the invention causes a good one Cooling the grate elements, on the other hand preheating the Combustion air, which has a positive effect on the combustion.
  • Another advantage of the invention is that it is very simple mechanical design of a maintenance-friendly feed grate, where cast links can be dispensed with.
  • An easy one controllable electromotive single drive already on the order of e.g. 0.25 kW drive power ensures already for a reliable rust movement and rotary movement the ash removal screw for continuous operation or an intermittent operation during known designs use complex hydraulic drive technology in this regard have to.
  • the simple drive technology of the invention additionally allows a further reduced construction weight.
  • a solid fuel boiler 40 is in shape a solid-fuel fan burner with automatic stoker screw-chip feed 37 over his entire inner Base area a moving grate arrangement in the form of a driven Step grate 30 with a drive motor 18 and a drive linkage 15, 16 outside the boiler 40.
  • the step grate 30 is designed as an interchangeable unit and on a common U-shaped in a side view Base plate 1 built, the boiler front leg in close proximity to the boiler fireclay lining 38 from the boiler base to just below the fuel supply 37 is sufficient and its shorter leg 39 behind the boiler also includes the ash discharge 32, in which a Ash removal screw 20 in the area of the height of the boiler base quererstreckt.
  • the ash removal screw 20 is driven by the drive motor 18, which also drives the step grate 30.
  • the step grate 30 has a rigid grate unit 3 and a movable grate unit 4, which in an arrangement in the boiler 40 from the fuel insert 31 to the ash discharge 32 drops in stages.
  • the movable grate unit 4 is on the rigid grate unit 3 for an essentially horizontal stroke movement arranged.
  • the rigid grate unit 3 is in turn attached to the base plate 1.
  • the rigid grate unit 3 has rigid grate elements 5, such as also the movable grate unit 4 movable grate elements 6 has, wherein the fuel contacting from the fuel entry 31 rigid and movable to promote ash removal 32 Grate elements 5, 6 arranged in an alternating order and interlock in sloping steps.
  • All grate elements 5, 6 are of the same design and have in cross-section angular shape, with large, if necessary, roughened or corrugated horizontal legs 33 transverse to the fuel delivery direction R and vertical leg 34 are provided, which is the fuel entry side are facing.
  • the vertical legs 34 of the rigid and movable grate elements 5, 6 are in two lateral rigid or movable vertical plate-shaped combs are plugged into slots, then the grate elements 5, 6 together with the associated Holding combs, which by means of cross struts or guide rails 7, 8 are connected to each other, each rigid or form the movable grate unit 3 or 4.
  • the ash discharge 32 is also included, the lower end portion of the step grate 30 from Ash discharge 32 by a substantially vertically arranged Cross plate 2 is separated.
  • the movable grate unit 4 is slow in operation rotating) electric drive motor 18, a rotating Eccentric 17, a drive linkage 15, 16, a pivotable Crank 13, 14, 19 and a fixed with the movable Grate unit 4 connected carriers 11, 12 horizontally driven reciprocally, the drive motor 18th is electrically controlled and in particular an interval operation a lifting movement of the step grate 30 and / or one Rotational movement of the ash removal screw 20 enables.
  • the entire step grate 30 is a replaceable module in one Boiler or the like provided. But it can also Parts of the step grate, for example the movable grate unit, or parts of the movable grate unit designed as modules his.
  • the stroke of the movable grate unit 4 is by changing the effective lengths of the drive linkage 15, 16 or the rocker 3 adjustable or adjustable.
  • All grate elements 5, 6 are individual wear parts exchangeable with the retaining combs by loosening the plug connection.
  • the step grate 30 is provided for low-noise operation its front vertical leg of the base plate 1 a noise protection or insulation board 21.
  • the individual components are therefore on an interchangeable, U-shaped carrier plate constructed in the form of a base plate 1.
  • the grate area becomes an ash pan separated.
  • the two fixed holding combs are direct attached to the base plate 1 or the support plate.
  • Struts 8 welded between the retaining combs.
  • the two movable holding combs 4 are also a Bracing 9 and the driver elements 11, 12 braced.
  • the two movable crests 4 as movable Grate unit via two guide strips 10 on the rigid grate unit suspended horizontally. With a horizontal shift the movable grate unit move the two guide strips 10 in two elongated holes 22 of the rigid Holding combs.

Landscapes

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

Claims (13)

  1. Agencement de grille en gradin comportant des éléments transversaux de grille (5 ou 6) descendant sous la forme de gradins en direction du dispositif de sortie des cendres ; lesquels éléments rigides sont disposés de manière alternative, entraínés de manière mobile et susceptibles d'être déplacé essentiellement de manière horizontale dans un mouvement de va et vient ; lesquels éléments de grille étant montés en tant qu'unité de grille rigide ou mobile (3 ou 4), caractérisé en ce que les éléments de grille (5, 6) rigides et mobiles présentent en section transversale, une forme d'angle et des côtés verticaux (34) ainsi que des côtés horizontaux (33) sans ouverture et présentant une grande surface.
  2. Agencement de grille en gradin selon la revendication 1, caractérisé en ce que les côtés verticaux (34) des éléments de grille (5, 6) sont fixés par enfichage sur une base de l'unité de grille (3, 4) rigide ou mobile.
  3. Agencement de grille en gradin selon la revendication 1 ou 2, caractérisé en ce que les éléments de grille (5, 6) présentent un bord avant descendant en angle en direction du dispositif de sortie des cendres.
  4. Agencement de grille en gradin selon la revendication 2 ou 3, caractérisé en ce que la base de l'unité de grille (3 ou 4) rigide ou mobile est représentée par des peignes de maintien aplatis fixes ou mobiles et disposés de manière verticale.
  5. Agencement de grille en gradin selon une des revendications 1 à 4, caractérisé par une plaque de base qui présente, en vue latérale, une forme en U et en ce qu'à l'intérieur de la plaque de base en forme de U est disposé ou reçu le dispositif de sortie des cendres.
  6. Agencement de grille en gradin selon une des revendications 1 à 5, caractérisé en ce que la zone extrême inférieure de l'unité de grille rigide ou mobile (3 ou 4) est séparée du dispositif de sortie des cendres par une tôle transversale (2) disposée essentiellement de manière verticale.
  7. Agencement de grille en gradin selon une des revendications 1 à 6, caractérisé en ce qu'au moins quelques uns des éléments de grille (5, 6) rigides ou mobiles sont susceptibles d'être échangés individuellement.
  8. Agencement de grille en gradin selon une des revendications 1 à 7, caractérisé en ce que toute la disposition de grille en gradin est un module incluant éventuellement le dispositif de sortie des cendres, ou dans lequel des parties de l'agencement de grille en gradin sont des modules échangeables.
  9. Agencement de grille en gradin selon une des revendications 1 à 8, caractérisé en ce qu'on a prévu au moins une plaque antibruit ou d'isolation.
  10. Agencement de grille en gradin selon une des revendications 1 à 9, caractérisé en ce que l'unité de grille mobile (4) est susceptible d'être entraínée dans un mouvement de va et vient par un moteur d'entraínement (18) électrique à rotation lente par l'intermédiaire d'un excentrique (17) rotatif, une tringlerie d'entraínement (15, 16), une manivelle (13, 14, 15) susceptible de se déplacer dans un mouvement de basculement et un entraíneur (11, 12) lié fixement avec l'unité de grille (4) mobile.
  11. Agencement de grille en gradin selon la revendication 10 , caractérisé en ce que le moteur d'entraínement (18) est également prévu en même temps pour l'entraínement d'une vis de sortie des cendres (20) qui s 'étend de manière transversale dans le dispositif de sortie des cendres.
  12. Agencement de grille en gradin selon une des revendications 1 à 11, caractérisé en ce que l'élévation de l'unité de grille (4) mobile est réglable.
  13. Agencement de grille en gradin selon une des revendications 10 à 12, , caractérisé en ce que le moteur d'entraínement (18) est commandé électriquement et permet notamment un fonctionnement à intervalle d'un mouvement d 'élévation de l'unité de grille mobile (4) et/ou un mouvement de rotation de la vis de sortie des cendres (20).
EP99115440A 1998-11-05 1999-08-05 Agencement de grille poussante pour une chaudière à combustible solide ou pour une installation similaire Expired - Lifetime EP1004822B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19851085A DE19851085A1 (de) 1998-11-05 1998-11-05 Schubrostanordnung für einen Festbrennstoff-Kessel o. dgl.
DE19851085 1998-11-05

Publications (2)

Publication Number Publication Date
EP1004822A1 EP1004822A1 (fr) 2000-05-31
EP1004822B1 true EP1004822B1 (fr) 2002-11-13

Family

ID=7886838

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99115440A Expired - Lifetime EP1004822B1 (fr) 1998-11-05 1999-08-05 Agencement de grille poussante pour une chaudière à combustible solide ou pour une installation similaire

Country Status (3)

Country Link
EP (1) EP1004822B1 (fr)
AT (1) ATE227826T1 (fr)
DE (2) DE19851085A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1396789B1 (it) * 2009-11-26 2012-12-14 Tm E S P A Termomeccanica Ecologia Impianto di smaltimento rifiuti provvisto di telaio mobile.
DE102010051385A1 (de) 2010-11-16 2012-05-16 Heinrich Eggersmann Brennstoffkörper, dessen Verwendung und Herstellung
CN104121578A (zh) * 2014-06-28 2014-10-29 李而宏 一种锅炉燃烧机
CN105157013B (zh) * 2015-08-31 2017-12-01 南京涵曦月自动化科技有限公司 一种自动化锅炉装置
CN109990265A (zh) * 2018-01-03 2019-07-09 蔡乃成 具有阶梯推料结构的生物质燃烧机及其阶梯推料结构

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2312034A (en) * 1941-04-04 1943-02-23 Fuller Co Apparatus for cooling heated material
US2431799A (en) * 1945-11-08 1947-12-02 Fuller Co Cooler having overlapping replaceable grates
DE4000973C1 (fr) * 1990-01-16 1991-02-28 Teset Thermo-Energie-System Entsorgungs-Technologie, Weismes/Waimes, Be
AU1075595A (en) * 1993-12-24 1995-07-17 Doikos Investments Limited Sliding fire grate module for refuse incineration in commercial-scale installations as well as method for its operation
FR2748552B1 (fr) * 1996-05-13 1998-06-05 Gec Alsthom Stein Ind Grille d'incineration de dechets menagers
DE29819816U1 (de) * 1998-11-05 1999-04-08 HDG Bavaria GmbH Heizkessel & Anlagenbau, 84323 Massing Schubrostanordnung für einen Festbrennstoff-Kessel o.dgl.

Also Published As

Publication number Publication date
DE19851085A1 (de) 2000-05-11
DE59903388D1 (de) 2002-12-19
EP1004822A1 (fr) 2000-05-31
ATE227826T1 (de) 2002-11-15

Similar Documents

Publication Publication Date Title
EP0811818B2 (fr) Plaque de grille et procédé pour sa fabrication
DE19650742C1 (de) Mit Wasser gekühlter Verbrennungsrost
DE69206614T2 (de) Trenngitter.
EP0134991B1 (fr) Grille inclinée pour four de combustion
EP0437759B1 (fr) Grille et chaudière à combustible équipée d'une telle grille
EP0499912A2 (fr) Barreau de grille et grille pour installations de combustion
EP1004822B1 (fr) Agencement de grille poussante pour une chaudière à combustible solide ou pour une installation similaire
EP1455993A1 (fr) Installation pour disperser un materiau, notamment des copeaux de bois, des fibres de bois ou similaires encolles, sur une bande transporteuse appropriee
EP2316315A2 (fr) Grill
EP0165432A1 (fr) Four, notamment pour la combustion des ordures, du charbon, du bois et des déchets industriels
EP0972988B1 (fr) Procédé et dispositif pour enlever l'eau des résidus de combustion évacués mécaniquement d'un dispositif d'enlèvement du laitier par voie humide
EP0811804A2 (fr) Elément de grille et grille pour incinérateur
CH669231A5 (de) Gleitstuhl fuer weichen und kreuzungen.
DE29819816U1 (de) Schubrostanordnung für einen Festbrennstoff-Kessel o.dgl.
DE1583440A1 (de) Rostanordnung fuer Schaftoefen
EP2184540B1 (fr) Bloc de grille à refroidissement par air
DE19606107C1 (de) Feuerungsrost, insbesondere für Müllverbrennungsanlagen
DE102012103058A1 (de) Vorrichtung mit einem Siebrost und einem beweglichen Zusatzrost zum Entfernen von Siebgut aus einer strömenden Flüssigkeit
EP0184977B1 (fr) Filtre à matière granuleuse, spécialement pour gaz de fumée
EP1532396B1 (fr) Element de grille destine a une grille d'une installation d'incineration de dechets
DE3612391A1 (de) Schraegrost fuer feuerungen
EP1377785A2 (fr) Grille refrigerante pour materiau en vrac
DE4335085C1 (de) Feuerrost-Befestigungskonstruktion
DE4234282C2 (de) Rinnenschuß für Kettenkratzförderer, insbesondere für den Einsatz in Bergbau-Gewinnungsbetrieben
DE19537904A1 (de) Rostplatte

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT CH DE LI

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 20000711

AKX Designation fees paid

Free format text: AT CH DE LI

17Q First examination report despatched

Effective date: 20010523

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT CH DE LI

REF Corresponds to:

Ref document number: 227826

Country of ref document: AT

Date of ref document: 20021115

Kind code of ref document: T

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 59903388

Country of ref document: DE

Date of ref document: 20021219

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20030814

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20150824

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20150827

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20151030

Year of fee payment: 17

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 59903388

Country of ref document: DE

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 227826

Country of ref document: AT

Kind code of ref document: T

Effective date: 20160805

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160831

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160831

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160805

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170301