EP1004822A1 - 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

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Publication number
EP1004822A1
EP1004822A1 EP99115440A EP99115440A EP1004822A1 EP 1004822 A1 EP1004822 A1 EP 1004822A1 EP 99115440 A EP99115440 A EP 99115440A EP 99115440 A EP99115440 A EP 99115440A EP 1004822 A1 EP1004822 A1 EP 1004822A1
Authority
EP
European Patent Office
Prior art keywords
grate
movable
unit
rigid
sliding
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
EP99115440A
Other languages
German (de)
English (en)
Other versions
EP1004822B1 (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

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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

  • the invention relates to a moving grate arrangement for a Solid fuel boiler, incinerator or burner.
  • Moving grate systems of incinerators of the aforementioned Kind tolerate a very wide range of fuel choices with regard to particle size, moisture content and flowability.
  • Known moving grate systems are moving grate, Rocking grate and tipping grate. Sliding grates are also suitable for Fuels with a high ash content. For a good burnout can reach the layer height of the fuel with sliding grates on the grate in the course of a burn in some Dimensions are affected.
  • the object of the invention is to provide a moving grate arrangement for a solid fuel boiler or the like, which is simple and in which in particular 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 the sliding grate arrangement as a step grate with a rigid grate unit and a movable one Form grate unit, the stepped grate in an arrangement in the boiler, furnace or burner from fuel input to Ash discharge drops in stages.
  • the movable grate unit is rigid Grate unit or on a common base plate for one essentially horizontal reciprocating movement arranged, and it advantageously has the rigid Grate unit rigid grate elements and the movable grate unit movable grate elements, the ones contacting the fuel from fuel input to ash discharge rigid and movable grate elements in alternating order are arranged, i.e. alternately interlock.
  • the stroke of the movable grate unit is preferably adjustable.
  • the moving grate arrangement is particularly designed so that the primary combustion air through an opening from the bottom grate bottom or - Wide side of the top of the step grate or can be supplied to the fuel through grate element slots.
  • At least some of the grate elements can be replaced individually be designed.
  • the grate elements advantageously have a cross section Angular shape and have breakthrough-free large horizontal legs across to the fuel delivery direction while the vertical legs of the grate elements at a base of the fixed or movable grate unit attached, in particular plug-in, are.
  • the base of the rigid or movable grate unit are included Advantage fixed and movable vertically arranged plate-like holding combs, which are preferably used for a plug connection slots open at the top of grate elements.
  • the movable grate unit can be rotated slowly electric drive motor at least via a rotating one Eccentric, a drive linkage, a swiveling one Crank and one firmly with the movable grate unit connected drivers are driven back and forth.
  • the drive motor can also be the drive for one Ash removal screw, which is at the ash discharge stretched across.
  • the drive motor is electrically controlled and enabled in particular an interval operation of a lifting movement of the Step grating and / or a rotary movement of the ash removal screw.
  • the lower end region of the step grate is expedient from the ash discharge through an essentially vertically arranged one Cross plate cut off.
  • step grate or parts of the step grate can interchangeable modules.
  • the grate elements advantageously have a top leading edge angled downwards in the direction of ash discharge on.
  • the base plate is U-shaped, particularly in a side view formed, being on the base plate or within the U-shaped base plate also arranged the ash discharge or can be included.
  • step grate operation is possible if the step grate in particular at least one noise protection or insulation board has, preferably on the front of the boiler.
  • 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 stretched across.
  • 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 entry 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 is a noise protection or insulation plate 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 severed.
  • 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)
  • Solid Fuels And Fuel-Associated Substances (AREA)
  • Gasification And Melting Of Waste (AREA)
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 true EP1004822A1 (fr) 2000-05-31
EP1004822B1 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)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010051385A1 (de) 2010-11-16 2012-05-16 Heinrich Eggersmann Brennstoffkörper, dessen Verwendung und Herstellung
US20130014680A1 (en) * 2009-11-26 2013-01-17 Emanuele Corbani Waste disposal plant with movable frame
CN105157013A (zh) * 2015-08-31 2015-12-16 太仓英达锅炉设备有限公司 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

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104121578A (zh) * 2014-06-28 2014-10-29 李而宏 一种锅炉燃烧机

Citations (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
US5069146A (en) * 1990-01-16 1991-12-03 Teset A.G. Grate for a fuel boiler
WO1995018333A1 (fr) * 1993-12-24 1995-07-06 Doikos Investments Limited Grille modulaire a coulisse pour l'incineration d'immondices dans des usines d'exploitation commerciale et procede d'exploitation
EP0807788A1 (fr) * 1996-05-13 1997-11-19 GEC ALSTHOM Stein Industrie Grille d'incinération de déchets ménagers
DE29819816U1 (de) * 1998-11-05 1999-04-08 HDG Bavaria GmbH Heizkessel & Anlagenbau, 84323 Massing Schubrostanordnung für einen Festbrennstoff-Kessel o.dgl.

Patent Citations (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
US5069146A (en) * 1990-01-16 1991-12-03 Teset A.G. Grate for a fuel boiler
WO1995018333A1 (fr) * 1993-12-24 1995-07-06 Doikos Investments Limited Grille modulaire a coulisse pour l'incineration d'immondices dans des usines d'exploitation commerciale et procede d'exploitation
EP0807788A1 (fr) * 1996-05-13 1997-11-19 GEC ALSTHOM Stein Industrie Grille d'incinération de déchets ménagers
DE29819816U1 (de) * 1998-11-05 1999-04-08 HDG Bavaria GmbH Heizkessel & Anlagenbau, 84323 Massing Schubrostanordnung für einen Festbrennstoff-Kessel o.dgl.

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130014680A1 (en) * 2009-11-26 2013-01-17 Emanuele Corbani Waste disposal plant with movable frame
WO2011063909A3 (fr) * 2009-11-26 2013-05-02 Tm.E S.P.A. Installation d'évacuation des déchets équipée d'un châssis mobile
US8991324B2 (en) 2009-11-26 2015-03-31 TM. E. S.p.A. Waste disposal plant with movable frame
DE102010051385A1 (de) 2010-11-16 2012-05-16 Heinrich Eggersmann Brennstoffkörper, dessen Verwendung und Herstellung
CN105157013A (zh) * 2015-08-31 2015-12-16 太仓英达锅炉设备有限公司 一种自动化锅炉装置
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

Also Published As

Publication number Publication date
DE59903388D1 (de) 2002-12-19
ATE227826T1 (de) 2002-11-15
DE19851085A1 (de) 2000-05-11
EP1004822B1 (fr) 2002-11-13

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