EP1840463A1 - Système tendeur de grilles de combustion - Google Patents

Système tendeur de grilles de combustion Download PDF

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Publication number
EP1840463A1
EP1840463A1 EP06006275A EP06006275A EP1840463A1 EP 1840463 A1 EP1840463 A1 EP 1840463A1 EP 06006275 A EP06006275 A EP 06006275A EP 06006275 A EP06006275 A EP 06006275A EP 1840463 A1 EP1840463 A1 EP 1840463A1
Authority
EP
European Patent Office
Prior art keywords
grate
spanning
engagement means
distance
accordance
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.)
Withdrawn
Application number
EP06006275A
Other languages
German (de)
English (en)
Inventor
John Kenneth Olsen
Erhardt Mogensen
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.)
Babcock and Wilcox Volund AS
Original Assignee
Babcock and Wilcox Volund AS
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 Babcock and Wilcox Volund AS filed Critical Babcock and Wilcox Volund AS
Priority to EP06006275A priority Critical patent/EP1840463A1/fr
Priority to PCT/IB2007/051063 priority patent/WO2007110838A2/fr
Priority to KR1020087025729A priority patent/KR101365550B1/ko
Priority to EP20070735266 priority patent/EP2002181A2/fr
Priority to CN2007800183496A priority patent/CN101449102B/zh
Priority to JP2009502301A priority patent/JP5054757B2/ja
Publication of EP1840463A1 publication Critical patent/EP1840463A1/fr
Withdrawn legal-status Critical Current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
    • 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
    • F23H17/00—Details of grates

Definitions

  • the present invention relates to a spanning system for an incineration or combustion grate in an incineration or combustion plant.
  • grates typically comprise a number of juxtaposed grate beams, of which at least some are movable for providing a movement of the fuel on top of the grate.
  • a spanning system which is of a simple construction and which provides a stable force keeping the grate beams together under varying temperature conditions, and this is achieved by a spanning system as indicated in claim 1.
  • the spanning together of the grate beams in a grate can be provided in a modular fashion, each spanning unit spanning over a small number of beams, e.g. maximum six beams, and thus the necessary forces for keeping these beams together are relatively small compared to the forces necessary to keep all of the beams in the grate together by the known hydraulic system.
  • the force-generating means provide the necessary play for possible expansion without providing any possibilities for particles to penetrate in between the individual grate beams.
  • the combustion grate shown in cross-section in Fig. 1 comprises a number of grate beams 1 extending in the moving direction of the fuel on top of the grate and arranged to be alternating movable 1' and stationary 1 grate beams in the crosswise direction.
  • the spanning unit 2 comprises two mainly vertical main bars 3, 4, which at the upper ends are provided with engagement means for engaging the stationary grate beams 1.
  • a first distance bar 5 is connected between the main bars 3, 4, said distance bar 5 being provided with a screw thread and nuts 8 in order to be able to adjust the distance between the two main bars 3, 4 at the lower end of these.
  • a second distance bar 6 is connected between the two main bars 3, 4, said connection between the second distance bars 6 and the two main bars 3, 4 comprising spring means 7, preferably in the form of Belleville springs positioned inside a tube fixedly connected to the main bars 3, 4.
  • the distance bar 6 functions as a pulling bar pulling the two main bars 3, 4 towards each other, whereby the engagement means connected to the stationary grate beams 1 pulls these towards each other, thus keeping the grate bars 1, 1' between the two engagement means in intimate contact along their side surfaces.
  • the connections between the distance bars 5, 6 and the main bars 3, 4 allow a certain tilting movement of the main bars 3, 4, whereby the spanning unit 2 can be mounted under the grate by loosening the nuts 8 and increasing the distance between the engagement means, whereby these can be put into engagement with the stationary grates 1, whereafter the nuts 8 are tightened until a certain pre-spanning of the spring means 7 is achieved.
  • the mounting may be eased by providing one of the distance bars in a two part form assembled after engagement with the grate beams.
  • the spanning unit 2 can be provided in different sizes shown as 2', the spanning unit 2' having the same function and same components as the spanning unit 2, but provided with shorter distance bars 5', 6', whereby the spanning unit 2' spans over a minor number of grate beams 1.
  • a covering plate 9 is provided on the main bars 3, 4 covering at least the normally used part of the screw thread on said distance bar 5, 5' during use.
  • a similar covering plate (not shown) may be provided to protect the distance bar 6, 6'.
  • two spanning units 2 are provided, one at each end of a grate beam 1, in order to distribute the forces pressing the grate beams towards one another. If considered necessary, more than two such spanning units can be used for each set of grate beams being spanned together by the spanning system.
  • Fig. 2 schematically shows the moving mechanism for moving the movable grate beams, comprising a rocking beam 10 and a roller 11, only shown schematically, and also shows tubing 12 for circulating cooling water in a water-cooled grate.
  • Figure 3 shows a main beam 3 and details regarding the engagement means, which comprises a tap 13 for engaging a hole provided in the grate beam for keeping the main bar 3 in position relative to said grate beam, and further comprising an engagement surface 14 for transferring the spanning forces to the grate beam.
  • the engagement means which comprises a tap 13 for engaging a hole provided in the grate beam for keeping the main bar 3 in position relative to said grate beam, and further comprising an engagement surface 14 for transferring the spanning forces to the grate beam.
  • Fig. 3 also shows details regarding the connection between the distance bar 6 and the main bar 3 in the form of a tube 15 in which Belleville spring discs are positioned around the distance bar 6 and compressed between a nut on the distance bar 6 and a bottom plate 16 of said tube 15, said bottom plate 16 being provided with a hole through which the distance bar 6 extends.
  • the spanning unit is provided in the form of a U-profile, one leg of the U-profile comprising engagement means for directly engaging a grate beam and the other leg of the U-profile being provided with spring means for engaging the grate beam.
  • this embodiment may be supplemented by an adjustment screw for adjusting the distance and/or force transferred to the grate beams.
  • the spanning unit is formed of spring steel elements mutually connected at one end and formed into a Y-form, where each of the elements is provided with engagement means for engaging the grate beams.
  • Supplementary this construction can, as shown in Fig. 7, be provided with an adjustment screw between one or both of the legs of the spanning unit for adjusting the distance and/or force between the two engagement means.
  • Figures 8 and 9 schematically show an embodiment, in which the rods comprising engagement means are mutually connected by a pivot and the force for pressing the engagement means towards one another is provided by means of a spring between the two rods opposite the pivot relative to the engagement means.
  • Fig. 8 shows the possibility of compressing the spring in order to mount the spanning unit onto the grate beams
  • Fig. 9 indicates the possibility of having an adjustable force transferred from the spring to the engagement means.
  • FIG. 10 schematically show corresponding tongue-like constructions, where Fig. 10 provides force by means of a load hanging on one arm of the tongue opposite the pivot mutually connecting the engagement means, and Fig. 11 provides the force by means of a spring connected between the two arms of the tongue and further comprising adjustment means for adjusting the distance and/or force between the two engagement means.
  • FIG. 12 and 14 show alternative embodiments, in which the force for pulling the engagement means towards each other is provided by means of a load connected by a wire to one of the engagement means, said wire running over a pulley connected to the other engagement means.
  • the difference between Fig. 12 and Fig. 14 lies primarily in the possibility of positioning the pulley and the wire under the grate beams in Fig. 12, and the pulley and wire being inserted through the grate beams being pressed together by the spanning unit and the wire being directly connected to one of the engaged grate beams and connected to the other of the engaged grate beams by the pulley being connected thereto in Fig. 14.
  • Figure 13 shows an embodiment, in which a pulling spring is connected between two engagement means engaging the grate beams, and
  • Figure 15 shows an embodiment, in which a rod or wire is connected to one grate beam and the opposite end of said rod or wire is connected to another grate beam through a compression spring.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Incineration Of Waste (AREA)
  • Gasification And Melting Of Waste (AREA)
EP06006275A 2006-03-27 2006-03-27 Système tendeur de grilles de combustion Withdrawn EP1840463A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP06006275A EP1840463A1 (fr) 2006-03-27 2006-03-27 Système tendeur de grilles de combustion
PCT/IB2007/051063 WO2007110838A2 (fr) 2006-03-27 2007-03-27 Systeme de serrage de grille de combustion
KR1020087025729A KR101365550B1 (ko) 2006-03-27 2007-03-27 연소 화격자 스패닝 장치
EP20070735266 EP2002181A2 (fr) 2006-03-27 2007-03-27 Systeme de serrage de grille de combustion
CN2007800183496A CN101449102B (zh) 2006-03-27 2007-03-27 燃烧炉篱的横跨系统
JP2009502301A JP5054757B2 (ja) 2006-03-27 2007-03-27 燃焼火格子用スパン・システム（ｓｐａｎｎｉｎｇｓｙｓｔｅｍ）

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06006275A EP1840463A1 (fr) 2006-03-27 2006-03-27 Système tendeur de grilles de combustion

Publications (1)

Publication Number Publication Date
EP1840463A1 true EP1840463A1 (fr) 2007-10-03

Family

ID=36928655

Family Applications (2)

Application Number Title Priority Date Filing Date
EP06006275A Withdrawn EP1840463A1 (fr) 2006-03-27 2006-03-27 Système tendeur de grilles de combustion
EP20070735266 Withdrawn EP2002181A2 (fr) 2006-03-27 2007-03-27 Systeme de serrage de grille de combustion

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP20070735266 Withdrawn EP2002181A2 (fr) 2006-03-27 2007-03-27 Systeme de serrage de grille de combustion

Country Status (5)

Country Link
EP (2) EP1840463A1 (fr)
JP (1) JP5054757B2 (fr)
KR (1) KR101365550B1 (fr)
CN (1) CN101449102B (fr)
WO (1) WO2007110838A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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.

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SI2124556T1 (sl) 2006-10-09 2015-01-30 Charleston Laboratories, Inc. Farmacevtske sestave
US8124126B2 (en) 2008-01-09 2012-02-28 Charleston Laboratories, Inc. Pharmaceutical compositions
EP2451274B1 (fr) 2009-07-08 2017-10-04 Charleston Laboratories, Inc. Compositions pharmaceutiques
CN111678393B (zh) * 2020-06-11 2022-05-03 武汉华兴达土地咨询有限公司 一种用于房屋尺寸测量的装置及其方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1169754A (en) * 1966-12-12 1969-11-05 Johannes Josef Martin Improvements in or relating to Multiple Section Grates
US4239029A (en) * 1978-02-24 1980-12-16 Josef Martin Feuerungsbau Gmbh Grate for industrial furnaces
US5178128A (en) * 1991-02-18 1993-01-12 Noell K+K Abfalltechnik Method and apparatus for clamping incinerator grate bars
US5377663A (en) * 1993-06-07 1995-01-03 Wheelabrator Environmental Systems, Inc. Grate combustion system
US5538128A (en) * 1993-10-21 1996-07-23 W + E Umwelttechnik Ag Grate for a furnace
EP0791784A1 (fr) * 1996-01-25 1997-08-27 Oschatz Gmbh Grille de combustion

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK1099923T3 (da) * 1999-11-09 2003-12-15 Peters Claudius Tech Gmbh Skyderist med organer til sidestyring af den bevægelige ristdel

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1169754A (en) * 1966-12-12 1969-11-05 Johannes Josef Martin Improvements in or relating to Multiple Section Grates
US4239029A (en) * 1978-02-24 1980-12-16 Josef Martin Feuerungsbau Gmbh Grate for industrial furnaces
US5178128A (en) * 1991-02-18 1993-01-12 Noell K+K Abfalltechnik Method and apparatus for clamping incinerator grate bars
US5377663A (en) * 1993-06-07 1995-01-03 Wheelabrator Environmental Systems, Inc. Grate combustion system
US5538128A (en) * 1993-10-21 1996-07-23 W + E Umwelttechnik Ag Grate for a furnace
EP0791784A1 (fr) * 1996-01-25 1997-08-27 Oschatz Gmbh Grille de combustion

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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.
WO2011063912A1 (fr) * 2009-11-26 2011-06-03 Tm.E S.P.A. Installation d'élimination de déchets avec système de rapprochement de barreaux de grille

Also Published As

Publication number Publication date
KR20080113249A (ko) 2008-12-29
CN101449102A (zh) 2009-06-03
WO2007110838A2 (fr) 2007-10-04
KR101365550B1 (ko) 2014-02-20
CN101449102B (zh) 2010-12-15
WO2007110838A3 (fr) 2007-12-13
JP5054757B2 (ja) 2012-10-24
JP2009531645A (ja) 2009-09-03
EP2002181A2 (fr) 2008-12-17

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