EP0650017B1 - Rost für eine Feuerungsanlage - Google Patents

Rost für eine Feuerungsanlage Download PDF

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Publication number
EP0650017B1
EP0650017B1 EP94115715A EP94115715A EP0650017B1 EP 0650017 B1 EP0650017 B1 EP 0650017B1 EP 94115715 A EP94115715 A EP 94115715A EP 94115715 A EP94115715 A EP 94115715A EP 0650017 B1 EP0650017 B1 EP 0650017B1
Authority
EP
European Patent Office
Prior art keywords
grate
bar
locking means
fastened
bars
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
EP94115715A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0650017A1 (de
Inventor
Guido Pius Stierli
Hansruedi Steiner
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.)
Martin GmbH fuer Umwelt und Energietechnik
Original Assignee
ABB Asea Brown Boveri Ltd
Asea Brown Boveri AB
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 ABB Asea Brown Boveri Ltd, Asea Brown Boveri AB filed Critical ABB Asea Brown Boveri Ltd
Publication of EP0650017A1 publication Critical patent/EP0650017A1/de
Application granted granted Critical
Publication of EP0650017B1 publication Critical patent/EP0650017B1/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
    • F23H17/00—Details of grates
    • 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 grate for a furnace according to the preamble of claim 1.
  • Such grids serve for burning and simultaneous further transport of fired goods and are mainly in Waste incineration plants used.
  • Such a grate is known from DE-C-28 08 057, which attached one on the side cheek Holding device through which the lateral Slidability of an edge bar towards the middle of the grate is limited. However, it leaves the edge bar vertical Scope that even runs upwards is unlimited.
  • the invention is intended to remedy this.
  • the invention as it is characterized in the claims creates one Grate, in which the rows of grate bars are in their angular position reliably fixed and thus swiveling one up entire row of grate bars is securely prevented while a Swing up rows of grate bars and remove Grate bars for maintenance purposes are easily possible and without the underwind area of Maintenance personnel would have to be entered.
  • Fig. 1 shows an oblique top view Grate according to the invention with a grate track 1, which bounded on both sides by side walls slidably pressed side cheeks 2 is limited. He can also be two or more arranged side by side Center beams have separate grate tracks.
  • the grate track 1 consists of alternating in the longitudinal direction Fixed bar rows 3 and moving bar rows 3 ', each of side by side grate bars 4 are formed.
  • the rear ends of the grate bars 4 each rest (FIG. 2) a grate bar support 5, which here as a rod with a round Cross-section is formed and they include the same with a front limiting pin 6a and a rear Limiting pin 6b, which protrudes downwards Longitudinal displaceability of the grate bar 4 compared to the Limit grate bar support 5, namely the same in Transverse direction alternately from the limiting pin 6a, b
  • Grate bars 4 semi-circular scarce or (not shown) semi-oval at a distance, d. H.
  • the grate bars 4 on the Grate bar support 5 only put on, d. H. after lifting removable and laterally movable.
  • a surface 7 that rises to the front of the grate bar 4 each bent downward and forms a front surface 8 which is approximately perpendicular to the surface 7 is directed.
  • the grate bars 4 of a grate bar row 3, 3 ' each lie on the surface of one with the front end Grate bar 4 of the next row of grate bars 3 '; 3 on, d. H. the grate bars of a fixed bar row 3 on which one Moving rod row 3 'and vice versa.
  • the moving bar rows 3 ' are supported by the grate bar supports 5, on which their grate bars rest and which can be swiveled hung and z. B. by piston 9 (Fig. 1, only one shown) are driven in a longitudinal direction reciprocating cyclic movement, the Movements of successive rows of moving bars 3 'in each case are 180 ° out of phase. That means that e.g. B. each second moving rod row 3 'is advanced while at the same time the moving rod rows 3 'in between withdrawn (in Figures 2, 3, 9, 12 are the Moving rod rows 3 'each solid in a limit position and shown in broken lines in the other limit position). These opposing movements make the kiln evenly and reliably stoked and advanced.
  • the grate bars 4 are on both sides with their next Neighbors connected by couplings. Each grate bar 4 has two protruding downwards on the side edges Side ribs 10 on. For every second grate bar 4 one Fixed bar row 3 is one in each of the side ribs 10 Bore 11 (Fig. 4) provided in which a transverse to Longitudinally directed bolt 12 inserted and by means of a mother 13 is held. The in between Grate bars 4 have open back at the same height Longitudinal slots 14 through which each through the Hole 11 on the neighboring grate rod pin 12 protrudes, which carries a head 15 at the end.
  • the bolt 12 apart from minor play, prevents a mutual one Swiveling adjacent grate bars around the grate bar support 5, at the same time the head 15 and the nut 13 act as the edges of the bore 11 or the longitudinal slot 14 crossbars that allow the lateral distance Limit adjacent grate bars.
  • the head 15 and the nut 13 act as the edges of the bore 11 or the longitudinal slot 14 crossbars that allow the lateral distance Limit adjacent grate bars.
  • the grate bars 4 of the moving bar rows 3 ' are the same Way connected.
  • a fixed grate bar 4 ' In contrast to the moving rod rows 3 ' is in the case of the fixed rod rows 3 of a wear plate 16 on the side wall 2 adjacent edge bar (Fig. 3, 4), which is constructed similarly to the other grate bars 4 and with longitudinal slots 14 in the side ribs 10 provided group belongs, a fixed grate bar 4 ', the by a swivel fixation, which is of the same design is effective like that between neighboring grate bars Coupling, with the side cheek 2 is connected.
  • she consists from a bolt designed as a bolt 12 ', which protrudes through a bore 11 'which the wear plate 16 and the side cheek 2 penetrates, and by means of one on outside end screwed nut 13 'on the Sidewall 2 is attached.
  • the slightly stronger one inner end carries one within the side rib 10 lying head 15 'so that it not only with the lower Edge of the longitudinal slot 14 as a stop surface cooperating, a pivoting of the edge bar 4 'around Prevents rust bar support 5, but also its removal limited by the wear plate 16 by the head 15 'as Crossbar with the side facing away from the side wall Inside of the side rib 10 forms a stop.
  • the fixed Grate bars 4 'of the fixed bar rows 3 not with rear ones Provide limiting pin 6b. So that she is still in Operation cannot remove from their location is in each case a longitudinal fixation is provided, which a shift in Prevents longitudinal direction.
  • the longitudinal fixation is like this trained that they from the side of the grate track 1 lying area can be operated.
  • the swivel fixation is like this trained that it is also a longitudinal fixation can be used.
  • the described execution of the same is by tightening the nut 13 'the bolt 12 'pulled outwards so that the fixed grate bar 4' between its head 15 'and the wear plate 16 is clamped and immovably fixed.
  • the Mother 13 'can also use other clamping devices, e.g. B. a Eccentric clamps are used.
  • a swivel fixation also acts as a longitudinal fixation, there is (Fig. 5 - 7) bar directed transversely to the longitudinal direction of the grating track 1 of a cam sleeve 18 and one surrounded by the same Mandrel 19 with two symmetrical at its end arranged locking cams 20 which have a cross bar form, which does not protrude radially from the cam sleeve 18.
  • the locking nut 25 solved and the mandrel 19 rotated by 90 °, so that Locking cam 20 with the slot 23 to cover come. Then the nut 21 is loosened, and the whole bolt pulled back. The activation of the Swivel and longitudinal fixation takes place accordingly.
  • FIG. 8 is the bolt as a turning pin 19 which can be fixed by a locking nut 25 trained, however, immediately in a below the Wear plate 16 the side wall 2 penetrating bore 22 stored and on its outside the side cheek 2 located end with a rotary lever 26 and opposite end, which by a recess 27 am lower edge of the side rib 10 of the fixed grate bar 4 ' protrudes with a single locking cam 20 as Cross bar is provided. Since the locking nut 25 a exerts an outward pull on the mandrel 19, is by the locking cam 20 on the Inner surface of the side rib 10 over the front edge of the Entry 27 engages, the fixed grate bar 4 'against Wear plate 16 pressed and clamped so. To the solution this swivel and longitudinal fixation becomes the locking nut 25 loosened and then the mandrel 19 rotated (Fig. 9) until the side rib 10 is free from the locking cam 20 is.
  • the longitudinal fixation is from Swivel fixation, that of the first embodiment (Fig. 4) can correspond with a bolt 12 'through the nut 13 'secured, but no clamping of the fixed Edge bar 4 'causing train is exposed, separated.
  • the side ribs 10 of the fixed Grate bar 4 'attached slightly in front of the rear end Have congruent holes 28 through which a cross latch 29 directed in the longitudinal direction protrudes. He also penetrates one with the holes 28 in one Line lying bore 30 in a between the Side ribs 10 of the fixed grate bar 4 'projecting on Grate bar support 5 of the corresponding fixed row 3 attached tab 31.
  • This longitudinal fixation allows a lateral displacement of the fixed grate bar 4 ', the however is limited by the swivel fixation. Furthermore it places its position with respect to the corresponding (fixed) grate bar support 5 and thus also the other fixed parts of the grate.
  • the bolt 29 protrudes through an air opening 32 Side cheek 2 into an outer end through a cover 33 closed safety tube 34, which in an opening 35th is screwed onto the outside of the side wall 2. It can be after Opening a revision door 36 by means of a Wrench located on the outside of the cover 33 attached hexagon 37 attacks, be unscrewed (Fig. 10a), after which the bolt 29 approximately by means of pliers pulled out and the longitudinal fixation can be released.
  • a separation of the swivel fixation and the longitudinal fixation, as shown in the last two examples, enables structurally particularly simple and also under the difficult conditions in the area of a grate prevail, very reliable constructive solutions.
  • the Longitudinal position of the edge bar 4 ' is also by the Locking surface 42 secured. After loosening the nut 44 However, the hold-down device 45 can be raised until the Locking surface 42 is free from bolt 43.
  • the Swivel lock is designed the same as on the outside Edge.
  • edge bars 4 ' Fixed bar rows 3 fixed so that they are Swiveling around the grate bar support 5 as well as with respect have little play to the side.
  • Rust bars effective couplings so by fixing an entire row of fixed bars 3 of the two edge bars 4 ' is fixed with respect to pivoting about its grate bar support 5.
  • the moving rod rows 3 ' have something in this regard Game, but each by the immediately behind it lying overlapping row of fixed bars 3 is limited. she cannot be swung up so far that could open dangerous gaps in the grate surface.
  • edge bar 4 'on the Sidewall 2 by means of an air opening 32 inserted slightly bent rod so that its front end by means of a hook or the like on the Grate surface grasped and he pulled out and removed can be, the swivel fixation and the coupling loosen with the neighboring grate bar by the engagement the longitudinal slots 14 with the bolts 12 ', 12 releases.
  • Analogous the longitudinal fixation on the central beam 40 is released and the Edge bar 4 'advanced by the bolt 43 by the Hold-down device 45 by means of the rotary lever 46 accordingly is rotated.
  • the fixed bar rows 3 and unfixed moving rod rows 3 ' starting with the rearmost, taking advantage of their limited game swung up.
  • the games add up the rows of grate bars behind it, so that the concerned grate bar 4 can be raised so far that the rear limiting pin 6b over the grate bar support 5 lifted and the grate bar 4 pulled out to the front can. If he belongs to the group of those with open back Heard longitudinal slots 14 equipped grate bars, he can be removed alone, otherwise along with his two neighboring grate bars.
  • the insertion of a new or the repaired or too only checked grate bar 4 takes place in the corresponding Wise.
  • the whole operation requires no intrusion into the Underwind area.
  • the longitudinal fixations can from outside the side wall 2 and from under the central beam 40 lying area can be operated.
  • the removal of the to be replaced grate bar 4 and the insertion of the same or a corresponding grate bar 4 are made by the Rust surface.
EP94115715A 1993-10-21 1994-10-06 Rost für eine Feuerungsanlage Expired - Lifetime EP0650017B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH317393 1993-10-21
CH3173/93 1993-10-21

Publications (2)

Publication Number Publication Date
EP0650017A1 EP0650017A1 (de) 1995-04-26
EP0650017B1 true EP0650017B1 (de) 1998-04-22

Family

ID=4250201

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94115715A Expired - Lifetime EP0650017B1 (de) 1993-10-21 1994-10-06 Rost für eine Feuerungsanlage

Country Status (7)

Country Link
US (1) US5538128A (es)
EP (1) EP0650017B1 (es)
JP (1) JPH07180823A (es)
AT (1) ATE165433T1 (es)
DE (1) DE59405777D1 (es)
ES (1) ES2115837T3 (es)
NO (1) NO303407B1 (es)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2644912B2 (ja) 1990-08-29 1997-08-25 株式会社日立製作所 真空処理装置及びその運転方法
DE19528310A1 (de) * 1995-08-02 1997-02-06 Abb Management Ag Rost für eine Feuerungsanlage
EP0981021A1 (de) * 1998-08-19 2000-02-23 Asea Brown Boveri AG Rost für Verbrennungsanlagen
US6761261B2 (en) * 1999-04-27 2004-07-13 Maxi-Tour Inc. Article transfer device
US6655304B1 (en) 1999-05-21 2003-12-02 Barlow Projects, Inc. Mass fuel combustion system
US6742646B2 (en) 2001-09-28 2004-06-01 Mcneil-Ppc, Inc. Systems, methods and apparatuses for manufacturing dosage forms
US6981455B2 (en) * 2002-03-08 2006-01-03 Lefcort Malcolm D Two-stage wet waste gasifier and burner
EP1540251A2 (en) * 2002-06-24 2005-06-15 John N. Basic Sr. Temperature-controlled incinerator dryer grates
CN2573878Y (zh) * 2002-10-02 2003-09-17 马成果 一种循环燃烬炉排
ITMI20041746A1 (it) * 2004-09-14 2004-12-14 Tm E S P A Termomeccanica Impianto di smaltimento rifiuti
JP5087221B2 (ja) * 2005-12-06 2012-12-05 株式会社荏原製作所 ストーカ式燃焼装置
EP1840463A1 (en) * 2006-03-27 2007-10-03 Babcock & Wilcox Voelund ApS Combustion grate spanning system
CH701280B1 (de) * 2007-08-22 2010-12-31 Doikos Investments Ltd Flüssigkeitsgekühlte Rostplatte mit Verschleissplatten und aus solchen Rostplatten bestehender Stufenrost.
DE202009009082U1 (de) * 2009-07-02 2009-10-08 Kroll, Timm Abtropfmatte
ITTO20090918A1 (it) * 2009-11-26 2011-05-27 Tm E S P A Termomeccanica Ecolo Gia Impianto di smaltimento rifiuti provvisto di sistema di accostamento dei barrotti.
CH703509B1 (de) * 2010-07-30 2014-08-29 Doikos Investments Ltd Wassergekühlter Schub-Verbrennungsrost mit einem hydraulischen Antrieb für seine beweglichen Rostplatten.
CN101876442B (zh) * 2010-08-06 2012-03-07 无锡华光锅炉股份有限公司 炉排侧梁的安装结构
GB2483479A (en) * 2010-09-09 2012-03-14 Tiska Gmbh Furnace grate bars
EP3583357B1 (de) * 2017-02-17 2023-05-03 Mitsubishi Power Europe GmbH Vorschubrost mit rostbahntrennungselementen
DE102020003114A1 (de) * 2020-05-25 2021-11-25 Martin GmbH für Umwelt- und Energietechnik Roststab, Roststabanordnung und Verfahren zum Betreiben einer Roststabanordnung
EP3982044B1 (de) * 2020-10-08 2024-04-24 Martin GmbH für Umwelt- und Energietechnik Verfahren zum zusammenhalten von nebeneinander liegenden roststäben sowie eine roststabanordnung

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH585372A5 (es) * 1975-03-17 1977-02-28 Von Roll Ag
DE2808057C2 (de) * 1978-02-24 1980-02-14 Josef Martin Feuerungsbau Gmbh, 8000 Muenchen Rostbelag für mechanisch bewegte stufenförmige Feuerungsroste von Großfeuerungen
DE3049086C2 (de) * 1980-12-24 1983-07-14 Widmer & Ernst AG, 5430 Wettingen Roststabreihe für Feuerungsroste von Verbrennungsöfen
DE3330636C1 (de) * 1983-08-24 1985-01-10 Martin GmbH für Umwelt- und Energietechnik, 8000 München Rostbelag fuer mechanisch bewegte stufenfoermige Feuerungsroste von Grossfeuerungen
ATE43004T1 (de) * 1984-05-21 1989-05-15 Theodor Koch Ofen, insbesondere zur verbrennung von muell, kohle, holz und industrieabfaellen.
FR2609530B1 (fr) * 1987-01-09 1991-01-11 Traitement Indl Residus Urbain Grille de foyer, avec des barreaux transversaux en elements solidarises par leurs faces frontales
US5377663A (en) * 1993-06-07 1995-01-03 Wheelabrator Environmental Systems, Inc. Grate combustion system

Also Published As

Publication number Publication date
JPH07180823A (ja) 1995-07-18
NO303407B1 (no) 1998-07-06
NO943981D0 (no) 1994-10-20
NO943981L (no) 1995-04-24
US5538128A (en) 1996-07-23
DE59405777D1 (de) 1998-05-28
EP0650017A1 (de) 1995-04-26
ATE165433T1 (de) 1998-05-15
ES2115837T3 (es) 1998-07-01

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