EP0915294B1 - Wassergekühlter Feuerungsrost - Google Patents

Wassergekühlter Feuerungsrost Download PDF

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Publication number
EP0915294B1
EP0915294B1 EP98120480A EP98120480A EP0915294B1 EP 0915294 B1 EP0915294 B1 EP 0915294B1 EP 98120480 A EP98120480 A EP 98120480A EP 98120480 A EP98120480 A EP 98120480A EP 0915294 B1 EP0915294 B1 EP 0915294B1
Authority
EP
European Patent Office
Prior art keywords
grate
pipelines
combustion
under
ventilation area
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
EP98120480A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0915294A1 (de
Inventor
Gert Dr. Lautenschlager
Dieter Dipl.-Ing. Arnst
Jürgen Thies
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.)
Steinmueller Babcock Environment GmbH
Original Assignee
BBP Environment 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 BBP Environment GmbH filed Critical BBP Environment GmbH
Publication of EP0915294A1 publication Critical patent/EP0915294A1/de
Application granted granted Critical
Publication of EP0915294B1 publication Critical patent/EP0915294B1/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
    • F23H3/00—Grates with hollow bars
    • F23H3/02—Grates with hollow bars internally cooled
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23H—GRATES; CLEANING OR RAKING GRATES
    • F23H2900/00—Special features of combustion grates
    • F23H2900/03021—Liquid cooled grates

Definitions

  • the invention relates to a water-cooled grate for incinerators.
  • Firing grates of this type are used, for example, in waste incineration plants. They usually consist of individual grate rows, which are arranged one behind the other and lie on top of each other like roof tiles. A fixed and a moving row alternate. The movement of the individual rows causes the fuel to be transported through the furnace and the combustion bed to be stoked.
  • the grate rows can consist of individual grate bars, which are tightly connected to one another, or of larger grate plates. Both cast and welded constructions are used.
  • the grate bars are used in new systems often equipped with water cooling.
  • the grate bars or plates show a construction with an internal duct through which Cooling water is passed. This allows low material temperatures achieve and almost exclude thermal wear.
  • the cooling water supply is usually via a flow collector on a grate side. Individual pipelines branch from this collector, those in the underwind area (for example in the underwind funnels) be welded to the grate bar rows. This makes it gas-tight Passage into the underwind area, i.e. into the area below the Rust, where there is air pressure, created.
  • the cooling water connection the rows of grates then take place, at least for the movable ones Rows of grate bars, via hose connections.
  • the hoses will open one side with the pipes, on the other side with the grate rows connected.
  • the cooling water passes through the individual grate bars and enters similarly on the other grate side into a return collector. It is also a series connection of several grate bars in Longitudinal direction possible.
  • the disadvantage of these designs is that the hoses arranged in a temperature and dirt contaminated area and are difficult or not accessible during operation.
  • the Hoses come with both ash and dust that go through the grate fall, as well as with molten non-ferrous metals, such as aluminum, in Contact. They are therefore an increased wear and a larger one Risk of damage.
  • Plastic hoses must pass through Protected metal sheaths or less flexible metal hoses be used. Have hoses due to damage are replaced, this is associated with a plant shutdown.
  • the present invention has for its object suitable Propose connections for a water-cooled grate that are insensitive to those below the grate prevailing conditions and easily during plant operation are accessible.
  • the invention accordingly includes a water-cooled grate for incineration plants, in particular for the incineration of garbage, consisting of fixed and movable grate rows, with the supply and discharge of the cooling water to and from the movable grate rows via moving, insensitive to the dirt and temperature load in the underwind area Lines, such as pipes, ducts, etc., are carried out, the movements of the pipes being recorded via flexible connections which are outside the temperature and dirt-laden underwind area.
  • the special sealing of the cooling water supply and drain lines in the underwind area required thereby takes place according to a preferred feature of the invention by means of a slot seal in the underwind funnel and a box structure applied outside the underwind funnel, which is sealed gas-tight with a cover plate.
  • the pipes are led outside in a slot in the downwind funnel, which allows the movement of a full grate stroke.
  • the slot is sealed with a moving disc so far that no dirt can escape from the underwind area.
  • a box structure which can be closed gas-tight with a lid, is placed on the downwind funnel.
  • the movement is compensated via a flexible connection, for example via a hose connection.
  • the flexible connection is led through the box to the outside.
  • Such an arrangement outside the underwind area is special advantageous because of contamination and damage to the flexible Connection is largely excluded.
  • more flexible plastic or rubber hoses without metal sheathing with smaller bending radii are used.
  • the accessibility for Maintenance, inspection or repair during operation is easily possible.
  • the Box construction can also be equipped with a purge air connection, to ensure a targeted air flow from the box structure into the To achieve underwind. This can support the sealing effect and gas entry from the downwind area into the box structure be prevented.
  • the grate sled 11 is not shown in FIGS. 1 and 2. To the FIG. 3 therefore provides a better understanding of the spatial arrangement. which in turn does not provide all the details of the construction according to the invention are removed.
  • the downwind funnel 1 has a slot opening 2 through which the moving pipes 3 occur, and which is so large that the Pipelines 3 can perform the full movement of a grate stroke.
  • the Pipes 3 are in the underwind area 5 on a moving Support structure 6, which is connected to the grate slide 11, attached.
  • a moving disc 4 which is attached to the tubes is, the slot opening is completely covered and sealed so that no dirt can escape from the underwind area 5.
  • the flexible connections arranged in the present Example are designed as hoses 9.
  • the hoses are on one side on pipes 10, which form the passage through the box structure connected.
  • the hoses take the movement of the pipelines 3 moving along.
  • the inclusion of the movement can also by another flexible connection, for example by one Lift cylinder.
  • 1 and 2 show an example in which the movement of three pipes via three hoses is compensated. That ⁇ s how it is possible to have several flexible pipes in one manifold summarize and only provide with a flexible connection.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Incineration Of Waste (AREA)
  • Processing Of Solid Wastes (AREA)
  • Furnace Details (AREA)
  • Table Devices Or Equipment (AREA)
  • Freezing, Cooling And Drying Of Foods (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Gasification And Melting Of Waste (AREA)
EP98120480A 1997-11-07 1998-10-29 Wassergekühlter Feuerungsrost Expired - Lifetime EP0915294B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19749227 1997-11-07
DE19749227A DE19749227C2 (de) 1997-11-07 1997-11-07 Wassergekühlter Feuerungsrost

Publications (2)

Publication Number Publication Date
EP0915294A1 EP0915294A1 (de) 1999-05-12
EP0915294B1 true EP0915294B1 (de) 2002-04-24

Family

ID=7847920

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98120480A Expired - Lifetime EP0915294B1 (de) 1997-11-07 1998-10-29 Wassergekühlter Feuerungsrost

Country Status (6)

Country Link
EP (1) EP0915294B1 (es)
AT (1) ATE216766T1 (es)
DE (2) DE19749227C2 (es)
DK (1) DK0915294T3 (es)
ES (1) ES2176882T3 (es)
PT (1) PT915294E (es)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101180499B (zh) * 2005-04-13 2012-07-04 巴威福龙股份公司 用于焚烧设备中的燃烧炉篦的冷却流体循环系统

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202005011215U1 (de) 2005-07-16 2005-09-29 Lls Standardkessel Service Gmbh Vorschubrost für Feuerungsanlagen
EP1975507A1 (de) * 2007-03-29 2008-10-01 ThyssenKrupp Xervon Energy GmbH Vorschubrost für Feuerungsanlagen
EP1983261B1 (de) 2007-04-20 2015-04-08 Ernst Schenkel Verbrennungsanlage mit einem Vorschubrost und einer Vorrichtung zur Kühlfluidversorgung

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE928358C (de) * 1942-02-14 1955-05-31 Mont Kessel Herpen & Co Rostfeuerung, deren Rostflaeche aus wassergekuehlten beweglichen Rohren gebildet ist
JPH02106613A (ja) * 1988-10-13 1990-04-18 Hitachi Zosen Corp 焼却炉の火格子構造
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
US6422161B2 (en) * 1995-03-23 2002-07-23 Theodor Koch Combustion grate and process for optimizing its operation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101180499B (zh) * 2005-04-13 2012-07-04 巴威福龙股份公司 用于焚烧设备中的燃烧炉篦的冷却流体循环系统

Also Published As

Publication number Publication date
ATE216766T1 (de) 2002-05-15
DE19749227A1 (de) 1999-05-20
PT915294E (pt) 2002-09-30
DE59803909D1 (de) 2002-05-29
ES2176882T3 (es) 2002-12-01
DE19749227C2 (de) 1999-12-02
DK0915294T3 (da) 2002-07-15
EP0915294A1 (de) 1999-05-12

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