EP0216021B1 - Luftkühlbare Feuerraumwand - Google Patents

Luftkühlbare Feuerraumwand Download PDF

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Publication number
EP0216021B1
EP0216021B1 EP86107903A EP86107903A EP0216021B1 EP 0216021 B1 EP0216021 B1 EP 0216021B1 EP 86107903 A EP86107903 A EP 86107903A EP 86107903 A EP86107903 A EP 86107903A EP 0216021 B1 EP0216021 B1 EP 0216021B1
Authority
EP
European Patent Office
Prior art keywords
combustion chamber
air
wall
bricks
chamber wall
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
EP86107903A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0216021A1 (de
Inventor
Max Schwalb
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.)
Didier Werke AG
Original Assignee
Didier Werke 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
Application filed by Didier Werke AG filed Critical Didier Werke AG
Priority to AT86107903T priority Critical patent/ATE39996T1/de
Publication of EP0216021A1 publication Critical patent/EP0216021A1/de
Application granted granted Critical
Publication of EP0216021B1 publication Critical patent/EP0216021B1/de
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
    • F23M5/00—Casings; Linings; Walls
    • F23M5/02—Casings; Linings; Walls characterised by the shape of the bricks or blocks used
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
    • F23M5/00—Casings; Linings; Walls
    • F23M5/08—Cooling thereof; Tube walls
    • F23M5/085—Cooling thereof; Tube walls using air or other gas as the cooling medium

Definitions

  • the invention relates to an air-cooled combustion chamber wall for incinerators, in particular for waste incineration plants, consisting of at least one masonry with space for guiding cooling air along a wall side facing away from the combustion chamber side, the masonry containing stones, the walls of which each contain at least one with corresponding air ducts Enclose stones in the air channel connected to the flow.
  • Combustion chamber walls are known in which two masonry structures spaced apart from one another are connected with individual spacers, as can be seen, for example, from US Pat. No. 1,809,417.
  • Fire chamber walls made of stones are also known, which have recesses and form air channels in association with adjacent stones, as can be seen, for example, from US Pat. No. 1,831,675. Such constructions are not very effective and stable.
  • an air-coolable combustion chamber wall is known as a metallic air-supplying hollow wall, which is provided with air outlet openings on the combustion chamber side.
  • a metallic plate wall is placed in front of the cavity walls on the firebox side, the cavity of the cavity walls, whose air outlet openings in the inner jacket opening into the space between the inner jacket and the panel wall in front, communicating with the combustion chamber through openings in the panel wall offset with respect to the first-mentioned openings.
  • the object of the present invention is to provide a combustion chamber wall of the generic type which, at a lower cost, results in a more stable and more effective wall construction for cooling and against the caking on the combustion chamber side.
  • this object is essentially achieved in that the area of the wall of the stones facing the combustion chamber is smaller than the opposite area of the wall facing the air duct, in that the wall area facing the respective air duct has a surface-enlarging surface structure.
  • Such masonry is simple and inexpensive to erect and results in a stable construction. Their features have made it possible in a simple manner that the area of the wall of the stone on the side of the furnace is smaller than its opposite surface with the surface-enlarging surface structure facing the air duct.
  • the surface-enlarging surface structure can be formed, for example, by groove-like recesses which run in the longitudinal direction of the channel, so that the flow resistance for the air flowing in the channels is not significantly impaired if the surface effectiveness is high.
  • Such groove-like recesses can also be produced in a simple manner.
  • the air duct of each stone can also be designed in two or more passages by partition walls running in the air flow direction.
  • the heat exchange with the air can be further improved, in particular if the surfaces of the partition walls also have an area-enlarging surface structure.
  • connection channels in a special embodiment of the invention between the air channels of adjacent stones and / or the trains of one and the same stone.
  • air supply ducts themselves can exist between the air ducts and the combustion chamber. This allows the cooling air to enter the combustion chamber in order to be available as secondary air for the afterburning of the flue gases. Since the secondary air in the air ducts has already been warmed up, the flue gases are thoroughly mixed, the wall temperatures of the combustion chamber are further reduced, and this further prevents slag from caking.
  • the connecting ducts and / or the air supply ducts can be formed in a simple manner by groove-like indentations in the end faces of the stones, which, if appropriate, complement one another with corresponding groove-like indentations of the stones above or below to form channels with a larger cross section.
  • the stones can be arranged in a manner known per se in association, that is to say offset from one another.
  • Another feature of the invention is that adjacent stones are interlocked.
  • the toothing can take place both on the side wall outer surfaces between stones adjacent in a stone layer and between the facing end faces of the stones of adjacent layers in order to achieve a high stability of the wall construction.
  • the wall of the stone facing the combustion chamber is stronger than its side walls.
  • air channel-free blocks for receiving anchoring elements and / or for closing off the air channels are arranged between or on the stones.
  • the blocks serve to close off the air ducts at the upper and lower ends, that is to say as a base and / or a cover.
  • the blocks can also be interlocked with stones in the manner described above.
  • the teeth of the stones and / or the blocks can be formed relatively easily by tongue and groove arrangements in the side wall outer surfaces and / or end faces of the stones and / or the blocks.
  • Both the stones and the blocks preferably have a height, a depth and a width which (in this order) add up to 64 mm, 125 mm and 250 mm or a multiple thereof.
  • the stones and blocks according to the invention fit into a grid of normal format (brick format) stones, so that they can easily be supplemented with bricking and the like in the same grid.
  • the stones and / or the blocks preferably consist of SiC, a material which has proven itself for combustion chamber walls. Because of the heat conduction, it is also proposed to brick the stones and / or blocks using SiC-containing fire cement.
  • the air-cooled combustion chamber wall is constructed from masonry of stones 1, the walls 2 of which each enclose at least one air duct 3 running parallel to the wall plane, so that a continuous duct is formed with the stones 1 of the same type arranged above and below. Measures have been taken so that the surface 13 of the wall 2 of the stone 1 on the combustion chamber side is smaller than the surface 14 of the wall 2 of the stone 1 facing the air duct 3. But not only the wall surface 14, but also the rest, the respective air duct 3 facing wall surfaces 4 have a surface-enlarging surface structure 5, which in the case shown is formed by groove-like recesses which run in the longitudinal direction of the duct, that is to say in the direction of air flow.
  • partition walls 6 extending in the air flow direction can be provided, so that, as shown in each case, two-pass or three-pass channels 3 are formed.
  • the surfaces of the partition walls 6 are also provided in the illustrated case by means of surface-enlarging surface structures, namely groove-like recesses running in the direction of flow to improve the heat transfer.
  • connecting channels 7 are formed in that groove-like indentations are provided in the end faces 9 of the stones 1, which complement each other with corresponding groove-like indentations of the stones 1 adjacent on the end face to form a full channel and in corresponding connecting channels 7 laterally pass in a stone layer of neighboring stones 1.
  • air supply ducts 8 are provided between the air ducts 3 and the combustion chamber, which are formed in the same way by groove-like recesses on the end face, which complement one another to form full ducts.
  • the stones 1 are arranged in order to improve the stability of the wall construction in the association, that is to say offset from layer to layer.
  • Adjacent stones 1 are interlocked by interlocking them in the side wall outer surfaces 12 by means of tongue and groove arrangements 11.
  • the tongue and groove arrangements 11 likewise run essentially in the longitudinal direction of the flow, which prevent the stones 1 from being displaced relative to one another perpendicular to the main wall plane.
  • tongue and groove arrangements running parallel to the main wall plane can also be provided in the end faces 9 of the stones 1, so that not only the mutual displacement of the stones 1 in one position, but also a mutual displacement of the stones 1 from layer to layer is prevented is.
  • air channel-free blocks 10 are arranged between or on the stones 3 provided with channels 3. These can accommodate a secure reception of anchoring elements for fastening the wall structure to an additional support or holding structure or can also serve to close the channels 3 at the end.
  • the blocks 10, like the stones 1, can be interlocked with one another with the stones 1.
  • the stones 1 and the blocks 10 preferably have a height of 64 mm, a depth of 125 mm and a width of 250 mm or a height, depth and width which add to these standard dimensions or a multiple thereof, so that they are simple Can be built in the same grid with so-called stonework from so-called normal formats.
  • the stones 1 and the blocks 10 are preferably made of SiC; you can use SiC-containing fire cement be bricked up.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Building Environments (AREA)
  • Incineration Of Waste (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Glass Compositions (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Luminescent Compositions (AREA)
  • Air Supply (AREA)
EP86107903A 1985-09-18 1986-06-10 Luftkühlbare Feuerraumwand Expired EP0216021B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86107903T ATE39996T1 (de) 1985-09-18 1986-06-10 Luftkuehlbare feuerraumwand.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853533240 DE3533240A1 (de) 1985-09-18 1985-09-18 Luftkuehlbare feuerraumwand
DE3533240 1985-09-18

Publications (2)

Publication Number Publication Date
EP0216021A1 EP0216021A1 (de) 1987-04-01
EP0216021B1 true EP0216021B1 (de) 1989-01-11

Family

ID=6281260

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86107903A Expired EP0216021B1 (de) 1985-09-18 1986-06-10 Luftkühlbare Feuerraumwand

Country Status (7)

Country Link
US (1) US4671191A (enrdf_load_stackoverflow)
EP (1) EP0216021B1 (enrdf_load_stackoverflow)
AT (1) ATE39996T1 (enrdf_load_stackoverflow)
CA (1) CA1277871C (enrdf_load_stackoverflow)
DE (2) DE3533240A1 (enrdf_load_stackoverflow)
DK (1) DK165566C (enrdf_load_stackoverflow)
FI (1) FI87489C (enrdf_load_stackoverflow)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW211603B (enrdf_load_stackoverflow) * 1991-06-03 1993-08-21 Mitsubishi Heavy Ind Ltd
US5277580A (en) * 1993-02-16 1994-01-11 Lea-Con, Inc. Wall construction system for refractory furnaces
DE4433154C2 (de) * 1994-09-17 1998-04-09 Riedhammer Gmbh Co Kg Feuerfeste Wandung für einen Heizkanal eines offenen Ringkammerofens
FR2769078B1 (fr) * 1997-09-30 2000-04-28 Ass De Sauvegarde De L Enfance Four d'incineration en briques refractaires a canaux et a passages d'injection d'air et briques pour sa constitution
FR2769076B1 (fr) * 1997-09-30 2000-02-25 Ass De Sauvegarde De L Enfance Four d'incineration en briques refractaires a canaux et a passages d'injection d'air et briques pour sa constitution
US6244197B1 (en) * 1999-01-04 2001-06-12 Gary L. Coble Thermal induced cooling of industrial furnace components
GB2432204B (en) * 2005-11-07 2010-05-12 York Linings Internat Ltd Refractory burner brick
CN110158888A (zh) * 2019-06-11 2019-08-23 贵州建工集团第十一建筑工程有限责任公司 一种钢结构表面砖铺贴的施工方法
WO2021215988A1 (en) * 2020-04-21 2021-10-28 Gartena Consulting & Installation Ab Plant for burning waste

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT17372B (de) * 1902-07-22 1904-08-25 James Reagan Feuerung, deren Wandung aus mit Luftkanälen versehenen Steinen gebildet ist.
US907682A (en) * 1906-03-26 1908-12-22 Alfred Cotton Steam-boiler furnace.
US907683A (en) * 1906-03-26 1908-12-22 Alfred Cotton Brick for furnace construction.
US1635851A (en) * 1923-09-17 1927-07-12 Liptak Michael Ventilated furnace wall
DE430733C (de) * 1924-09-06 1926-06-22 Paul Goossens Dr Ing Baustein fuer Schmelzoefen, insbesondere mit Kohlenstaubfeuerung
US1809417A (en) * 1925-10-05 1931-06-09 Liptak Michael Furnace wall
US1812315A (en) * 1926-09-16 1931-06-30 Drake Nonclinkering Furnace Bl Air cooled furnace wall
US1831675A (en) * 1927-12-03 1931-11-10 American Arch Co Furnace wall
FR1162290A (fr) * 1956-11-05 1958-09-10 Cie Gen De Constr De Fours Parois de fours de carbonisation
FR1565691A (enrdf_load_stackoverflow) * 1968-03-22 1969-05-02
DE8328741U1 (de) * 1982-10-11 1984-01-12 Veitscher Magnesitwerke-AG, 1010 Wien Feuerfester, prismatischer Hohlstein für den Gitterbesatz der Kammern regenerativ beheizter Öfen
DE3316372A1 (de) * 1983-05-05 1984-11-08 Didier-Werke Ag, 6200 Wiesbaden Auskleidungsstein

Also Published As

Publication number Publication date
ATE39996T1 (de) 1989-01-15
US4671191A (en) 1987-06-09
FI863263A0 (fi) 1986-08-11
DK362586A (da) 1987-03-19
FI87489C (fi) 1993-01-11
DK165566B (da) 1992-12-14
EP0216021A1 (de) 1987-04-01
FI87489B (fi) 1992-09-30
DE3661773D1 (en) 1989-02-16
DK362586D0 (da) 1986-07-30
DE3533240A1 (de) 1987-03-26
DE3533240C2 (enrdf_load_stackoverflow) 1989-01-26
FI863263L (fi) 1987-03-19
CA1277871C (en) 1990-12-18
DK165566C (da) 1993-04-26

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