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EP0363645A1 - Dispositif de décendrage pour installations de combustion - Google Patents

Dispositif de décendrage pour installations de combustion Download PDF

Info

Publication number
EP0363645A1
EP0363645A1 EP89116525A EP89116525A EP0363645A1 EP 0363645 A1 EP0363645 A1 EP 0363645A1 EP 89116525 A EP89116525 A EP 89116525A EP 89116525 A EP89116525 A EP 89116525A EP 0363645 A1 EP0363645 A1 EP 0363645A1
Authority
EP
European Patent Office
Prior art keywords
slag
push
purification device
shaft
piston drive
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
EP89116525A
Other languages
German (de)
English (en)
Other versions
EP0363645B1 (fr
Inventor
Hansruedi Steiner
Hans 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
W and E 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=4263563&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0363645(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by W and E Umwelttechnik AG filed Critical W and E Umwelttechnik AG
Priority to AT89116525T priority Critical patent/ATE96897T1/de
Publication of EP0363645A1 publication Critical patent/EP0363645A1/fr
Application granted granted Critical
Publication of EP0363645B1 publication Critical patent/EP0363645B1/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
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J1/00—Removing ash, clinker, or slag from combustion chambers
    • F23J1/02—Apparatus for removing ash, clinker, or slag from ash-pits, e.g. by employing trucks or conveyors, by employing suction devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2900/00—Special arrangements for conducting or purifying combustion fumes; Treatment of fumes or ashes
    • F23J2900/01021—Removing ashes from the ash pit using reciprocating means, e.g. pushers

Definitions

  • the invention relates to a purification device for an incineration plant, in particular for the incineration of waste, in which at the end of its grate a substantially vertically arranged slag shaft opens out over a slag tray provided with water and has an obliquely rising discharge path, one in the slag tray being driven by a push piston drive reciprocating ram is installed with a push plate, which pushes out the non-combustible combustion residues over the extension track.
  • a detoxification device is installed in various firing and incineration plants, which has an essentially vertical slag shaft at the end of the grate through which the incombustible combustion residues fall into an underlying slag pan.
  • This slag shaft protrudes so far into the slag pan that its mouth is immersed in a water filling placed in the slag pan. This water seal prevents unwanted air from entering the combustion chamber.
  • the slag tray merges into a discharge path through which the incombustible combustion residues are discharged from the slag tray.
  • a discharge device known as a pestle detoxifier
  • a thrust plate which is moved back and forth in the slag pan.
  • a thrust piston drive is generally used which is in drive connection with the thrust plate via a correspondingly designed linkage. Due to the back and forth movement of the push plate, slag and other incombustible material are pushed against the opening of the push-out track with each stroke in the direction of the push-out track. When moving away from the discharge track, the material in the vertical slag shaft can flow into the slag tray.
  • the water filling is always at the level at which a reliable water seal of the slag shaft is achieved, a level control is provided with which the water level is kept constant. Due to the non-combustible combustion residues, especially fine-grained ash, the water filling forms a sludge that has an abrasive effect, is strongly cemented and increases the corrosion. This will make sensitive areas the tappet detoxifier, in particular bearing points on the drive linkage, which are immersed in the sludge mentioned, impaired in their functionality. Although it is possible to seal bearing points immersed in the sludge, experience has shown that absolute tightness cannot be guaranteed due to the large forces to be transmitted and the resulting deformations. If such a bearing is leaking, increased abrasion and a correspondingly reduced operational safety for the ram purifier must be expected.
  • the drive for the ram purifier is the well-known hydraulic push piston drive, which is used in numerous known purification devices.
  • the push plate of the ram deslagger is moved back and forth via two swivel levers which are attached to a swivel shaft which extends transversely across the slag pan.
  • a thrust piston drive engages on the swivel shaft or two thrust piston drives engage, which are arranged outside the slag pan.
  • the push piston drive is operatively connected via a linkage to the push plate of the ram purifier, which is provided with at least one push rod, from which its end facing away from the push plate during the entire stroke of the push plate above the level of The slag pan is filled with water. It is thereby achieved that all the joints of the linkage lie outside the water filling of the slag tray, but the linkage can be arranged completely outside of the slag tray in a relatively simple manner. If a cardan shaft is used, its storage can also be arranged outside the water filling. This arrangement makes it possible for the push piston drive and the push rod to lie in the same plane in order to avoid additional moments in the linkage and to carry out their movements in this plane.
  • the deslagging device shown in Figs. 1 and 2 is arranged at the end of a combustion grate, not shown, of an incineration plant, the incombustible firing residues, such as slag and other, e.g. metallic parts, get into a vertical slag shaft 1, the mouth 2 of which projects into a slag pan 3, which is filled with a water filling 4 to a level which closes the mouth 2 of the slag shaft 1 against the ingress of air.
  • the drive for the ram purifier is arranged on the side of the slag trough 3 opposite the extension track 6. This has the task of moving a thrust plate 10 arranged in the slag tray 3 from a rearward position, in which the slag shaft 1 is released, into an extending position at the beginning of the extending path 6.
  • the two positions of the push plate 10 are designated R for the rear position and A for the extended position.
  • a push rod 12 is supported, which can be designed essentially as a hollow tube, for example as a square hollow tube.
  • a push rod 12 is arranged on the back of the push plate 10, which over the Level 5 of the water filling 4 protrude and are pivotally mounted there on a lever 14 by means of a joint 15.
  • the lever 14 is designed as a two-armed lever, between the arms 16, 17 of which a pivot shaft 18 is arranged.
  • the pivot shaft 18 extends across the width of the slag pan 3 and is attached to the outside of the end face of the slag pan 3 by means of bearings, e.g. Rolling bearings, stored in two bearing housings 19 which e.g. can essentially form a continuation of the side walls of the slag tray 3.
  • the two-armed pivot lever 14 is fastened to the pivot shaft 18 within the two bearing housings 19 and is aligned with the push rod 12.
  • the pivot lever 14 and the push rod 12 thus lie in the same vertical plane of movement.
  • a support crossbeam 20 is fastened, on each of which a double bracket 21 for an articulated bearing 22 of one end of a thrust piston drive 24 is supported.
  • the push piston drive 24, e.g. a hydraulic lifting cylinder, is articulated at its other end to the arm 17 of the pivot lever 14 and provides the pushing force for the displacement of the thrust plate 10.
  • Fig. 1 the linkage formed from the push rod 12 and the pivot lever 14 is shown in the rear position of the push plate 10. It can be seen that the joint 15, which connects the push rod 12 to the pivot lever 14, is located far above the level 5 of the water filling 4 in the slag pan 3. But also in the extended position of the push plate 10, see FIG. 2, the joint 15 is also above the level 5 of the water filling 4. This ensures that none of the sensitive joints of the push piston drive 24 and the linkage 12, 14 and the pivot shaft 19 are inside the water filling 4. In addition, it is also achieved that the movements of the
  • Linkage 12, 14 lie in the same vertical plane, so that no additional moments are exerted.
  • the slag shaft 1 and the slag tray 3 are welded together from sheet steel.
  • the push plate 10 slides on the inside of the bottom of the slag pan 3.
  • the slag pan 3 is usually supported on two bases 26, 27 which rest on foundations 28, 29.
  • the slag pan 3 is thus at a distance above the foundation floor (not shown) so that there is sufficient space for the arrangement of the thrust piston drive 24 below the slag pan 3.
  • the slag tray 3 has an access door 30 on both side walls, which is large enough that an operator can get inside the slag tray.
  • the slag shaft 1 is also welded together from steel plates, is firmly connected to the slag pan 3 and also has an access opening 31.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gasification And Melting Of Waste (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)
  • Fertilizers (AREA)
  • Treatment Of Sludge (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Gas Separation By Absorption (AREA)
  • Chimneys And Flues (AREA)
EP89116525A 1988-10-11 1989-09-07 Dispositif de décendrage pour installations de combustion Expired - Lifetime EP0363645B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89116525T ATE96897T1 (de) 1988-10-11 1989-09-07 Entschlackungseinrichtung fuer verbrennungsanlagen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3792/88A CH677140A5 (fr) 1988-10-11 1988-10-11
CH3792/88 1988-10-11

Publications (2)

Publication Number Publication Date
EP0363645A1 true EP0363645A1 (fr) 1990-04-18
EP0363645B1 EP0363645B1 (fr) 1993-11-03

Family

ID=4263563

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89116525A Expired - Lifetime EP0363645B1 (fr) 1988-10-11 1989-09-07 Dispositif de décendrage pour installations de combustion

Country Status (8)

Country Link
US (1) US4976206A (fr)
EP (1) EP0363645B1 (fr)
JP (1) JP2939812B2 (fr)
AT (1) ATE96897T1 (fr)
CH (1) CH677140A5 (fr)
DE (1) DE58906100D1 (fr)
ES (1) ES2045315T3 (fr)
NO (1) NO172262C (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2562477A1 (fr) 2011-08-25 2013-02-27 Hitachi Zosen Inova AG Dispositif de décrassage destiné à la sortie de résidus de combustion d'une installation de combustion
EP2778523A1 (fr) 2013-03-14 2014-09-17 Hitachi Zosen Inova AG Dispositif de traitement d'impuretés
RU2744426C1 (ru) * 2018-02-09 2021-03-09 Мицубиси Хэви Индастриз Инвайронментал Энд Кемикал Инджиниринг Ко., Лтд. Механизм разгрузки золы

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5082572A (en) * 1990-09-05 1992-01-21 Ogden Martin Systems, Inc. Ash vibration process and apparatus
US5196424A (en) * 1992-03-24 1993-03-23 Eli Lilly And Company N-[2-amino-4-substituted[[(pyrrollo or pyrido)[2,3-d]pyrimidinyl]-alkyl]benzoyl]-L-glutamic acids
DE19508488C3 (de) * 1995-03-09 2001-03-15 Martin Umwelt & Energietech Verfahren und Vorrichtung zum Erzeugen von deponiefähigen oder weiterverarbeitbaren Verbrennungsrückständen aus einer Abfallverbrennungsanlage
US5979340A (en) * 1998-06-05 1999-11-09 The Board Of Regents Of The University Of Texas System Pole inserting robotic mechanism for accessing the interior of a harsh enclosure
US6932002B2 (en) * 2003-09-04 2005-08-23 Recycling Solutions Technology, Llc System and method of processing solid waste
US20050211143A1 (en) * 2003-09-04 2005-09-29 Recycling Solutions Technology, Llc System and method of generating electricity
US9885478B1 (en) 2011-02-28 2018-02-06 Recycling Solutions Technology, Llc Process for generating combustible gas from organic feedstock and reactors therefor
US20120226089A1 (en) * 2011-03-03 2012-09-06 Covanta Energy Corporation Dry ash collector
CN107013930A (zh) * 2017-06-01 2017-08-04 深圳市能源环保有限公司 一种垃圾焚烧发电厂捞渣机防堵补水装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE974045C (de) * 1951-11-25 1960-08-25 Steinmueller Gmbh L & C Austragvorrichtung fuer Schuettgut, insbesondere fuer Verbrennungsrueckstaende bei Feuerungsanlagen
US4520738A (en) * 1984-06-19 1985-06-04 Kabushiki Kaisha Takuma Device to force out incineration ash
EP0152589A2 (fr) * 1984-02-03 1985-08-28 K+K Ofenbau GmbH Dispositif d'extraction des mâchefers pour appareils à combustion de grande capacité

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB197847A (en) * 1922-06-14 1923-05-24 Nils Frederik Nissen Improved apparatus for discharging the ashes from furnaces

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE974045C (de) * 1951-11-25 1960-08-25 Steinmueller Gmbh L & C Austragvorrichtung fuer Schuettgut, insbesondere fuer Verbrennungsrueckstaende bei Feuerungsanlagen
EP0152589A2 (fr) * 1984-02-03 1985-08-28 K+K Ofenbau GmbH Dispositif d'extraction des mâchefers pour appareils à combustion de grande capacité
US4520738A (en) * 1984-06-19 1985-06-04 Kabushiki Kaisha Takuma Device to force out incineration ash

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2562477A1 (fr) 2011-08-25 2013-02-27 Hitachi Zosen Inova AG Dispositif de décrassage destiné à la sortie de résidus de combustion d'une installation de combustion
US8967058B2 (en) 2011-08-25 2015-03-03 Hitachi Zosen Inova Ag Slag remover for discharging combustion residues of an incineration plant
EP2778523A1 (fr) 2013-03-14 2014-09-17 Hitachi Zosen Inova AG Dispositif de traitement d'impuretés
RU2744426C1 (ru) * 2018-02-09 2021-03-09 Мицубиси Хэви Индастриз Инвайронментал Энд Кемикал Инджиниринг Ко., Лтд. Механизм разгрузки золы

Also Published As

Publication number Publication date
DE58906100D1 (de) 1993-12-09
US4976206A (en) 1990-12-11
EP0363645B1 (fr) 1993-11-03
ATE96897T1 (de) 1993-11-15
NO894052L (no) 1990-04-17
CH677140A5 (fr) 1991-04-15
NO172262C (no) 1993-06-23
JPH02154912A (ja) 1990-06-14
JP2939812B2 (ja) 1999-08-25
NO172262B (no) 1993-03-15
NO894052D0 (no) 1989-10-10
ES2045315T3 (es) 1994-01-16

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