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EP1191282A1 - Barreau de grille refroidi - Google Patents

Barreau de grille refroidi Download PDF

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Publication number
EP1191282A1
EP1191282A1 EP01121141A EP01121141A EP1191282A1 EP 1191282 A1 EP1191282 A1 EP 1191282A1 EP 01121141 A EP01121141 A EP 01121141A EP 01121141 A EP01121141 A EP 01121141A EP 1191282 A1 EP1191282 A1 EP 1191282A1
Authority
EP
European Patent Office
Prior art keywords
grate
block
water supply
water
cooled
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
EP01121141A
Other languages
German (de)
English (en)
Other versions
EP1191282B1 (fr
Inventor
Werner Brennwald
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.)
Kanadevia Inova AG
Original Assignee
Von Roll Umwelttechnik 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25739011&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1191282(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Von Roll Umwelttechnik AG filed Critical Von Roll Umwelttechnik AG
Publication of EP1191282A1 publication Critical patent/EP1191282A1/fr
Application granted granted Critical
Publication of EP1191282B1 publication Critical patent/EP1191282B1/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
    • 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
    • F23H17/00—Details of grates
    • F23H17/12—Fire-bars
    • 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
    • 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 cooled grate block according to the preamble of claim 1.
  • a grate block of this type is, for example, in EP-B-0 713 056.
  • This grate block has one Block body from a U-shaped cross-section, the upper wall a support surface for the person to be treated Forms waste.
  • One below the contact surface arranged, to a water supply line and a Water drainage line is connected through the cold room top wall and a front wall of the block body limited, which together form a corner room. It exists the danger that this in the uppermost area of the Cold room existing corner air or steam bubbles form, through which the cooling just in the thermal particularly heavily used part of the block body is affected.
  • the present invention is based on the object to create a grate block of the type mentioned at the beginning, with simple cooling impairing formation of air or vapor bubbles in the top area of the refrigerator is avoided.
  • this object is achieved by a cooled Rust block with the features of claim 1 solved.
  • Block body with the top and front walls attached their collision are so thickened that one Filling the corner space between the two walls Wall transition arises, the inside surface of which is the refrigerator compartment its uppermost area is limited in a simple manner the danger of insufficient cooling - caused by Largely formation of insulating air or vapor bubbles eliminated.
  • Grate block according to EP-B-0 713 056 all in the cold room housed water pipes in a common level be arranged, what manufacturing and assembly Brings advantages.
  • Rust block form the subject of the dependent Expectations.
  • Fig. 1 shows a grate element 3 known per se as part a grate for a thermal treatment plant of waste.
  • An inclined grating track settles in length composed of several grate elements 3. Usually will three to five grate elements 3 arranged one behind the other. It can be arranged side by side several grate tracks and together determine the grate width; usually one to four grate tracks are used.
  • Each grate element 3 has several, possibly eight rows of grate blocks 4 arranged one behind the other in steps, 5, with a fixed grate block row 4 each movable grate block row 5 follows.
  • 5 several grate blocks 6 'are arranged side by side.
  • a block holder tube 7 hooked and fixed together connected, preferably screwed (for air-cooled Rust blocks 6 'is a much larger number in the Rule 16 to 24 grate blocks 6 'per grate block row 4 or 5 necessary).
  • On the outermost grate block each solid A side plate 15 is screwed onto the grate block row 4.
  • Each grate block 6 ' has a support surface 24' the waste to be treated comes to rest and along which it is transported (the contact surfaces are 24 ' at an angle of about 18 ° to the horizontal plane ) Are arranged. Furthermore, each grate block 6 'with one front wall 23 'and one with the front wall 23 'connected foot 30' with which he on the Contact surface 24 'of the downstream grate block 6' rests.
  • Block holder tubes 7 of the fixed grate block rows 4 are attached to fixed brackets 8
  • Block holder tubes 7 of the movable grate block rows 5 Brackets 9 attached to a movable grate 10th assigned.
  • the grate 10 is by means of two hydraulic cylinder 11 arranged in parallel and driven thereby on rollers 12 on treads 13 back and forth emotional.
  • the moving rows of grate blocks are also used 5 moves, which has a shear and scissor effect on the Exercise waste material located on the rust track, so that always new waste surfaces of the thermal Be exposed to treatment in the furnace simultaneous forward conveyance of the waste material.
  • the grate block 6 comprises one as a casting manufactured block body 20 of a substantially U-shaped Cross section of a rear wall 21, an upper Wall 22 and a front wall 23 has.
  • the rear one Wall 21 is equipped with two hooks 25, with which the grate block 6 onto the block pipe 7 known from FIG. 1 is hooked in.
  • the outer surface of the top wall 22 forms the already mentioned bearing surface 24 for the treating waste.
  • the top wall 22 and the front wall 23 are on theirs Collision thickened so that the corner room filling between these two walls 22, 23 Wall transition 26 is formed (cf. in particular FIGS. 3, 5 and 10).
  • This has an inner surface 27 and one Outside surface 28 on, the two towards the front Wall 23 runs obliquely downwards.
  • the front wall 23 is connected to the already mentioned foot 30, which is is determined on the bearing surface 24 of a subsequent one To rest grate block 6 relatively displaceable.
  • the block body 20 also has one on the foot 30 Adjoining wall, directed diagonally into the interior of the block 31 on over several across the grate block width evenly distributed nozzles 32 with the wall transition 26 and is connected to the front wall 23.
  • the weird arranged nozzles 32 are provided with openings 33 which in the area of the front wall 23 an angled Have outlet part 34 (see FIG. 5). Through the Openings 33 are opened from below in the direction of arrow L according to FIG. 3 for example air as one for the combustion of the Waste necessary oxidizer supplied. (At a In contrast to one, pyrolysis rust is eliminated Combustion grate the nozzles 32 or the air openings 33, as no air is passed through the grate).
  • the block body 20 has two side walls 37, which with one screw hole 38 each for connection, preferably Screw the adjacent grate blocks 6 one Row of grate blocks are provided. They are also Side walls 37 equipped with tabs 39, through which the outermost grate blocks of each fixed grate block row 4 connected to the already mentioned side plates 15, can preferably be screwed.
  • the top wall 22 is on its inside with two itself stiffeners 43 extending across the grate block width, 44 provided. At the rear stiffener 44 is one Heel area 45 made. Even those on foot 30 adjacent wall 31 has a heel surface 46 fitted. The two heel surfaces 45, 46 are used for Supporting a floor 50 (Fig. 2 and 3) on the Stiffening 44, on the wall 31 and on the two Side walls 37 is welded.
  • the bottom 50 has a lower one, at an angle to the longitudinal direction of the grate block 6 extending part 51 rising upwards at the front and a part 52 forming a rear wall. The two bottom parts 51, 52 are over a rounded part 53 connected to each other.
  • FIGS. 2 and 3 there is one in the cooling space 55 Arrangement 60 of water supply lines 57, 58, 59 and Water drainage pipes 61, 62, 63, which are used as piping or as a fixed block of interconnected, preferably welded steel pipes is formed in a common, along the inclined bottom portion 51 extending plane are arranged.
  • the water supply takes place in the direction of arrow Z according to FIG. 2 over a sealingly protruding the rear bottom part 52
  • This container may have one semicircular cross-section (see. Fig. 3).
  • Water supply cross line 58 may branch two Water supply branch lines 59, which extend to Extend wall transition 26 and with it with one Exit opening 59 'provided in each end rib-like recess 35 of the wall transition 26 or in an upper, round in cross section and in diameter of Branch line 59 corresponding part 36 thereof protrude (see in particular Fig. 3, 6, 7 and 8).
  • the water supply branch pipes already mentioned 59 protrude sealingly through this transverse line 62.
  • the water discharge cross line 62 is with the rear Bottom part 52 sealingly protruding water drainage main line 63 connected.
  • the water drainage or the Water return is indicated by arrow R in Fig. 2.
  • the rib-like recesses 35 also each have one to the outer or inner surface 28, 27 of the wall transition 26 parallel surface 67 (Fig. 3 and 8), so that too no corner space is formed within the recesses 35, in which the cooling of the block body 20 could form an adverse air or vapor bubble.
  • the Inlet openings 61 'always remain in the cooling water immersed.
  • the rib-like recesses 35 provide also for sufficient cooling of the cross section thickened wall transition 26.
  • the cooling space 55 is significantly reduced. This extends in length from the front wall 23 only over part of the block body length behind, preferably up to the support line of the overlying, upstream grate block 6. With in other words, the length of the cooling space 55 corresponds to essentially the distance of the front walls 23 two in downstream of the grate element 3 or stacked grate blocks 6, namely the maximum distance in an idle state.
  • a grate is known to be large in length Fluctuations in temperature exposure exposed. To this Taking fluctuations into account has so far been Cooling water in the grate from below against the waste flow from each grate block to the other, overlying grate block directed. This is because of the relative displaceability of these grate blocks a large number of Hose connections have been necessary. There are also grates known in which only the fixed rows of grate blocks Be subjected to water cooling. When using Rust blocks 6, which have a higher pressure in the refrigerator 55 and Allowing a greater heating of the cooling water is one Cross cooling of the respective grate block row 4 or 5 juxtaposed, firmly screwed together Rust blocks 6 become possible.
  • both the solid and the movable rows of grate blocks 4 and 5 from the Water-cooled rust blocks 6 according to the invention composed.
  • Rostblocks or rust is preferably used water; under the term "cooling water”, however, are all suitable Understand coolants.

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)
  • Manufacture And Refinement Of Metals (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
EP01121141A 2000-09-22 2001-09-04 Barreau de grille refroidi Expired - Lifetime EP1191282B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CH18492000 2000-09-22
CH18482000 2000-09-22
CH18482000 2000-09-22
CH18492000 2000-09-22

Publications (2)

Publication Number Publication Date
EP1191282A1 true EP1191282A1 (fr) 2002-03-27
EP1191282B1 EP1191282B1 (fr) 2003-04-16

Family

ID=25739011

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01121141A Expired - Lifetime EP1191282B1 (fr) 2000-09-22 2001-09-04 Barreau de grille refroidi

Country Status (4)

Country Link
EP (1) EP1191282B1 (fr)
JP (1) JP3537413B2 (fr)
AT (1) ATE237784T1 (fr)
DE (1) DE50100171D1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2184540A1 (fr) 2008-11-05 2010-05-12 Von Roll Umwelttechnik AG Bloc de grille à refroidissement par air
DE102014106200A1 (de) * 2014-05-05 2015-11-05 Tiska Gmbh kühlbarer Roststab für einen Vorschubrost einer Verbrennungsanlage
WO2016198119A1 (fr) * 2015-06-12 2016-12-15 Hitachi Zosen Inova Ag Bloc de grille pour une grille de combustion
EP3967927A1 (fr) * 2020-09-09 2022-03-16 Hitachi Zosen Inova AG Bloc de grille refroidi par eau pour une installation d'incinération
US20220252261A1 (en) * 2019-10-29 2022-08-11 Alite Gmbh Grate Bar for Stepped Grate

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3734153B2 (ja) * 2001-06-08 2006-01-11 株式会社タクマ 水冷式火格子

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07180824A (ja) * 1993-12-22 1995-07-18 Mitsubishi Heavy Ind Ltd ストーカ
EP0713056B1 (fr) * 1994-11-17 1999-05-19 Von Roll Umwelttechnik AG Barreau de grille avec dispositif de refroidissement

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19622424C2 (de) * 1996-06-04 1998-10-29 Martin Umwelt & Energietech Rostelement und Rost mit Flüssigkeitskühlung

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07180824A (ja) * 1993-12-22 1995-07-18 Mitsubishi Heavy Ind Ltd ストーカ
EP0713056B1 (fr) * 1994-11-17 1999-05-19 Von Roll Umwelttechnik AG Barreau de grille avec dispositif de refroidissement

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1995, no. 10 30 November 1995 (1995-11-30) *

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2184540A1 (fr) 2008-11-05 2010-05-12 Von Roll Umwelttechnik AG Bloc de grille à refroidissement par air
DE102014106200A1 (de) * 2014-05-05 2015-11-05 Tiska Gmbh kühlbarer Roststab für einen Vorschubrost einer Verbrennungsanlage
WO2016198119A1 (fr) * 2015-06-12 2016-12-15 Hitachi Zosen Inova Ag Bloc de grille pour une grille de combustion
CN107850302A (zh) * 2015-06-12 2018-03-27 日立造船爱诺瓦公司 用于燃烧炉排的炉排块
US10760787B2 (en) 2015-06-12 2020-09-01 Hitachi Zosen Inova Ag Grate block for a combustion grate
CN107850302B (zh) * 2015-06-12 2020-09-04 日立造船爱诺瓦公司 用于燃烧炉排的炉排块、燃烧炉排及其用途和废物燃烧设施
EP3798515A1 (fr) 2015-06-12 2021-03-31 Hitachi Zosen Inova AG Bloc de grillage pour une grille de combustion
US20220252261A1 (en) * 2019-10-29 2022-08-11 Alite Gmbh Grate Bar for Stepped Grate
US11815265B2 (en) * 2019-10-29 2023-11-14 Ikn Gmbh Grate bar for stepped grate
EP3967927A1 (fr) * 2020-09-09 2022-03-16 Hitachi Zosen Inova AG Bloc de grille refroidi par eau pour une installation d'incinération
WO2022053550A1 (fr) * 2020-09-09 2022-03-17 Hitachi Zosen Inova Ag Bloc de grille refroidi par eau pour incinérateur
EP4477948A3 (fr) * 2020-09-09 2025-03-12 Kanadevia Inova AG Bloc de grille refroidi par eau pour un incinérateur

Also Published As

Publication number Publication date
ATE237784T1 (de) 2003-05-15
EP1191282B1 (fr) 2003-04-16
JP2002147736A (ja) 2002-05-22
JP3537413B2 (ja) 2004-06-14
DE50100171D1 (de) 2003-05-22

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