EP0152520B1 - Rost für Feuerungen - Google Patents

Rost für Feuerungen Download PDF

Info

Publication number
EP0152520B1
EP0152520B1 EP84109779A EP84109779A EP0152520B1 EP 0152520 B1 EP0152520 B1 EP 0152520B1 EP 84109779 A EP84109779 A EP 84109779A EP 84109779 A EP84109779 A EP 84109779A EP 0152520 B1 EP0152520 B1 EP 0152520B1
Authority
EP
European Patent Office
Prior art keywords
grate
grate bar
bar
recesses
flanks
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
EP84109779A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0152520A2 (de
EP0152520A3 (en
Inventor
Erich Weber
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
Martin GmbH fuer Umwelt und Energietechnik
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 Martin GmbH fuer Umwelt und Energietechnik filed Critical Martin GmbH fuer Umwelt und Energietechnik
Publication of EP0152520A2 publication Critical patent/EP0152520A2/de
Publication of EP0152520A3 publication Critical patent/EP0152520A3/de
Application granted granted Critical
Publication of EP0152520B1 publication Critical patent/EP0152520B1/de
Expired 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
    • 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

Definitions

  • the invention relates to a grate for furnaces, with grate steps that can be moved in their longitudinal direction and partially overlap one another, from individual grate bars that can be moved relative to one another and that lie against one another with lateral contact surfaces on their grate bar flanks, which protrude at least partially from the outer ribs of the grate bar that project downward.
  • a grate for furnaces in which the individual grate bars have tines tapering downwards, which both form a firm support surface with suitable air passages and also require great resistance to bending.
  • a bar projecting over the tines is provided on the top of the grate bar from this surface and also projects beyond the tines in the interstices between the tines. Nevertheless, there remains a gap into which smaller pieces of slag can penetrate, so that the disadvantages already explained above occur.
  • the object of the invention is to provide a grate or the grate bars necessary for this, in which the disturbances resulting from the penetration between the grate bars are avoided, d. H. to design the grate in such a way that the parts penetrating between the grate bars can be quickly removed downwards between the grate bar flanks, so that they cannot give rise to jamming of the adjacent grate bars or to an increase in the distance between adjacent grate bars.
  • the cavity cooling of the grate bar should not be significantly impaired.
  • This object is achieved by the features specified in claim 1.
  • This configuration of the grate bar flanks creates sawtooth-like contact surfaces, the flanks of which form cutting edges which, with the corresponding cutting edges of the adjacent grate bar, act on the penetrated parts, such as the cooperating cutting edges of a cutter bar, on the material to be cut. Since the cutting edges are inclined due to the sawtooth-like design, the relative movement of adjacent grate bars results in a force effect on the parts, which is directed downwards, ie starting from grate bar bridges to the underside of the grate bar. The recesses in the flanks form thereby relieving niches from which the parts can fall out freely once they get into such a unloading stungsnische 'due to the mutual movement.
  • a particularly favorable ejection effect on the penetrated parts is achieved when the flanks of the teeth remaining between the recesses have an inclination with respect to the surface of the grate bar of between 20 and 50 °, in particular of 35 °.
  • the tooth pitch essentially corresponds to the double relative movement of adjacent grate bars, it is ensured that the cutting edges move against one another along their entire length during a complete stroke, as a result of which parts which penetrate into the recesses are actually detected and adjusted promoted below.
  • the grate bar flank remaining above the recesses has a height that makes up about a third to a quarter of the total height of the grate bar flank and thus corresponds to only a small part of the grate bar flank height, it is ensured that penetrated parts very soon get into a recess and there through the sawtooth-like grate bar flanks are pushed down.
  • the invention also relates to a grate bar, which is characterized in claim 6. Refinements of this grate bar result from subclaims 7 and 8.
  • Each grate bar flank has sawtooth-like recesses 5, which are closed upwards in the direction of the grate bar bridges 2 and are open towards the underside of the grate bar.
  • relief niches are formed between the tooth flanks 7 of the teeth 9 formed by the recesses 5, which are composed of the recesses of adjacent grate bars and have a constantly changing volume during the relative stroke. In these relief niches those parts fall that come between adjacent grate bars and are pressed by the cutting edges 8 adjacent grate bars downwards in the direction of arrow 10 due to the wedge effect resulting from the cutting edge inclination.
  • Such a particle is designated by 11.
  • the part of a grate bar flank remaining above the recess as far as the grate bar ridge is designated by 12 and forms that region of the grate bar flank with the lowest height. In the exemplary embodiment shown, this area has a height that makes up about a quarter of the total height of the grate bar flank 3.
  • the distance between two teeth 9 of a grate bar flank is designated 13 and forms a tooth pitch of the grate bar flank.
  • two adjacent grate bars are shown offset from each other by half a tooth pitch, so that with a grate bar stroke, which corresponds to half the tooth pitch, the teeth of adjacent grate bar flanks are in the front position of the movable grate bar with a gap , while the teeth 9 of adjacent grate bar flanks overlap when the movable grate bar is in its rear stoking position.
  • This tooth-like configuration of the grate bar flanks is preferably limited to the focal path area of a grate bar, that is the area which is not subject to permanent overlap by the grate bar located above it.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Incineration Of Waste (AREA)
  • Catalysts (AREA)
  • Food-Manufacturing Devices (AREA)
  • Furnace Details (AREA)
EP84109779A 1983-08-24 1984-08-17 Rost für Feuerungen Expired EP0152520B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3330637 1983-08-24
DE3330637A DE3330637C1 (de) 1983-08-24 1983-08-24 Rost,insbesondere fuer Feuerungen

Publications (3)

Publication Number Publication Date
EP0152520A2 EP0152520A2 (de) 1985-08-28
EP0152520A3 EP0152520A3 (en) 1986-04-02
EP0152520B1 true EP0152520B1 (de) 1988-11-09

Family

ID=6207397

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84109779A Expired EP0152520B1 (de) 1983-08-24 1984-08-17 Rost für Feuerungen

Country Status (8)

Country Link
US (1) US4520792A (ja)
EP (1) EP0152520B1 (ja)
JP (1) JPS6060415A (ja)
CA (1) CA1227376A (ja)
DE (1) DE3330637C1 (ja)
DK (1) DK160958C (ja)
SG (1) SG78889G (ja)
SU (1) SU1344255A3 (ja)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2312947A (en) * 1996-05-10 1997-11-12 Boiler Energy Serv Ltd Grate bar
FR2885404A1 (fr) * 2005-05-03 2006-11-10 Saretco Sa Barreau de grille et grille pour foyer a gradins solidaires avec combustion a air dirige
FR2885403A1 (fr) * 2005-05-03 2006-11-10 Saretco Sa Barreau de grille et grille pour foyer a gradins solidaires
ITPV20100006A1 (it) * 2010-04-09 2011-10-10 Davide Raveri Griglia mobile alternata
GB2483479A (en) 2010-09-09 2012-03-14 Tiska Gmbh Furnace grate bars
US9193528B2 (en) * 2014-04-10 2015-11-24 Grifols Worldwide Operations Limited Vial transport mechanism
PL2985339T3 (pl) * 2014-08-11 2020-11-02 Kompoferm Gmbh Kondycjoner pozostałości z fermentacji i sposób kondycjonowania pozostałości z fermentacji
CN108413407B (zh) * 2018-03-15 2023-09-22 重庆科技学院 一种锯齿状搓齿炉条
CN108286712B (zh) * 2018-03-15 2023-09-22 重庆科技学院 基于搓齿炉条组的废弃物处理管式炉
CN110925765B (zh) * 2019-12-13 2024-03-26 重庆科技学院 一种多刃多齿复合活动炉排片

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE457741C (de) * 1928-03-22 Reinhard Tweer Rost aus mit schlangenfoermiger Verzahnung ineinandergreifenden Roststaeben
DE136644C (ja) *
US1553587A (en) * 1924-06-10 1925-09-15 Balmfirth Alfred Grate
GB420257A (en) * 1933-12-14 1934-11-28 Alfred George Howell Improvements in firebars for use in land and marine boilers
US2806439A (en) * 1952-11-08 1957-09-17 Detroit Stoker Co Grate
DE3049086C2 (de) * 1980-12-24 1983-07-14 Widmer & Ernst AG, 5430 Wettingen Roststabreihe für Feuerungsroste von Verbrennungsöfen

Also Published As

Publication number Publication date
US4520792A (en) 1985-06-04
JPS6352284B2 (ja) 1988-10-18
EP0152520A2 (de) 1985-08-28
DE3330637C1 (de) 1985-01-17
DK160958B (da) 1991-05-06
DK404284A (da) 1985-02-25
CA1227376A (en) 1987-09-29
SU1344255A3 (ru) 1987-10-07
SG78889G (en) 1990-07-06
EP0152520A3 (en) 1986-04-02
DK404284D0 (da) 1984-08-23
DK160958C (da) 1991-11-04
JPS6060415A (ja) 1985-04-08

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