EP2562477A1 - Dispositif de décrassage destiné à la sortie de résidus de combustion d'une installation de combustion - Google Patents

Dispositif de décrassage destiné à la sortie de résidus de combustion d'une installation de combustion Download PDF

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Publication number
EP2562477A1
EP2562477A1 EP20110006950 EP11006950A EP2562477A1 EP 2562477 A1 EP2562477 A1 EP 2562477A1 EP 20110006950 EP20110006950 EP 20110006950 EP 11006950 A EP11006950 A EP 11006950A EP 2562477 A1 EP2562477 A1 EP 2562477A1
Authority
EP
European Patent Office
Prior art keywords
shaft
drive lever
cylinder piston
trough
tub
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
EP20110006950
Other languages
German (de)
English (en)
Other versions
EP2562477B1 (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.)
Hitachi Zosen Innova AG
Original Assignee
Hitachi Zosen Innova 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
Application filed by Hitachi Zosen Innova AG filed Critical Hitachi Zosen Innova AG
Priority to ES11006950.7T priority Critical patent/ES2551721T3/es
Priority to EP11006950.7A priority patent/EP2562477B1/fr
Priority to PL11006950T priority patent/PL2562477T3/pl
Priority to US13/585,355 priority patent/US8967058B2/en
Priority to JP2012185557A priority patent/JP6120506B2/ja
Publication of EP2562477A1 publication Critical patent/EP2562477A1/fr
Application granted granted Critical
Publication of EP2562477B1 publication Critical patent/EP2562477B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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 
    • F23J2700/00—Ash removal, handling and treatment means; Ash and slag handling in pulverulent fuel furnaces; Ash removal means for incinerators
    • F23J2700/003—Ash removal means for incinerators
    • 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 present invention relates to a detacker for discharging combustion residues of a combustion plant according to the preamble of claim 1 and to the use of the slag remover for a waste incineration plant.
  • Purifiers of the type mentioned above have been known for some time, especially in the field of waste incineration, and serve to discharge the residues (slag) which are not combustible further during combustion from the incinerator.
  • Purifiers usually comprise an intake shaft through which the combustion residues from the combustion chamber fall into a well filled with water. From this, the combustion residues are pushed by a pushrod over a Ausschubschurre or Ausschubbahn, from where they can be transported in deponierschreiber form.
  • a purifier will be in about DE-A-2539615 described.
  • a discharge piston which pushes the falling on the bottom of the tub slag in the Ausschubschurre hingedly connected at its rear end with one or more thrusters, which are non-rotatably mounted on a shaft which is rotatably mounted in bearings in the side walls of the tub.
  • thrusters which are non-rotatably mounted on a shaft which is rotatably mounted in bearings in the side walls of the tub.
  • At both over the side walls projecting ends of the shaft lever arms are rotatably disposed, each cooperating with a hydraulic piston-cylinder unit.
  • a disadvantage of such an embodiment is that, for example, when there is slag that can be conveyed only with great expenditure of force and this is distributed inhomogeneously over the cross section of the tank, distortion moments occur which force a corresponding dimensioning of the shaft.
  • the forces acting on the respective bearing moments of force in this Entschlacker are relatively large, which is not in the sense of optimal power transmission.
  • Another detoxifier is about in the EP-A-0363645 discloses, according to which two push rods are present, which are each rotatably mounted on a lever by means of a hinge.
  • the lever is designed as a two-armed lever, between the arms of a pivot shaft is arranged.
  • Opposite the DE-A-2539615 will according to the EP-A-0363645 avoided that joints penetrate into the water filling of the tub.
  • the problems with respect to the occurrence of distortion moments in the shaft remain.
  • the object of the present invention is thus to provide a device of the type mentioned, which the occurrence of Verspannmomenten avoids and allows optimal power transmission to the pushrod.
  • the Entschlacker comprises a trough, which is intended to absorb the combustion residues carried out from a combustion chamber of the incinerator, and at least two pushrod to push out the combustion residues from the tub.
  • Each of the pushrod is connected to an output lever.
  • the output levers are rotatably mounted on a rotatably mounted in two shaft bearings shaft.
  • a drive lever is rotatably disposed, which cooperates with a cylinder piston unit. This is designed to reciprocate the pushrod between a retracted position and an extended position.
  • the drive lever is now arranged between two output levers.
  • the inventive arrangement that even in the presence of only with great force recoverable combustion residues, the shaft is not exposed to Verspannmomenten.
  • the inventive arrangement of the drive and the output lever allows optimum power transmission from the cylinder piston unit to the pushrod, which under related to the fact that the power flow does not go beyond the shaft bearings in contrast to the aforementioned prior art Entschlackern.
  • the shaft can be dimensioned relatively slim.
  • Verspannmomenten is obtained in particular when the inventive Entschlacker comprises only a single drive lever and only a single cooperating cylinder piston unit.
  • the inventive Entschlacker comprises only a single drive lever and only a single cooperating cylinder piston unit.
  • the purifier preferably has exactly two output levers. It is also conceivable, however, any higher number, in particular, an even number of output levers is preferred, as this allows a symmetrical arrangement of the drive lever between the output levers is made possible.
  • the shaft extends at least over the trough width with the shaft bearings disposed on the side walls.
  • the drive lever is arranged substantially centrally between the shaft bearings, whereby the shaft bearings acting force is thus distributed in half on both shaft bearings.
  • the present invention makes it possible to store the shaft in releasably mounted with the tub housing bearing blocks, which greatly simplifies the accessibility of the shaft or the lever arranged thereon.
  • the present invention allows the at least one drive lever and the output lever to be welded to the shaft, thereby ensuring a very high mechanical stability.
  • a disassembly of the shaft or sitting on this lever can be accomplished by loosening the bearing blocks in a very simple manner; on a part of the wave or on elaborate Keilbahnen, as in conventional slurries - such as that according to DE-A-2539615 - Are necessary, can thus be dispensed with by the present invention.
  • the purifier usually has an intake shaft, through which the combustion residues fall into the tub.
  • the pushrod In its retracted position of the pushrod is usually arranged in a Ausschieberaum considered behind the intake shaft area.
  • the end face of the pushrod lies in at least approximately the same vertical plane as the rear wall of the access shaft facing away from the push-out direction.
  • the cylinder piston unit and the drive lever are arranged in a Ausschieberaum considered behind the intake shaft area.
  • a particularly preferred drive geometry results when in operation the cylinder piston unit or the force vector emanating therefrom is aligned at an angle of less than 20 °, preferably less than 10 °, particularly preferably less than 5 ° with respect to the horizontal, since this provides an optimum Power transmission efficiency of the cylinder piston unit can be obtained on the pushrod.
  • the horizontal corresponds to the perpendicular to the orientation of the chute extending longitudinal axis of the tub.
  • the tub is according to a particularly preferred embodiment, at least partially in the form of two longitudinally extending, separate from each other troughs, the cylinder piston unit and / or the drive lever are arranged at least partially in the space between the troughs. Since the cylinder piston assembly and the drive lever are usually arranged in the Ausschiebecardi in a lying behind the intake shaft area, the tub is according to a preferred embodiment only in this area in the form of troughs before. In the ejection direction, the troughs usually open into a trough, over which the troughs are fluidly connected to each other.
  • the intermediate space or the / at least partially arranged therein cylinder piston unit or drive lever is preferably separated by means of a separating plate.
  • a first water box with a fresh water connection and a filling level device is arranged on a first of the side walls, and a second water box with a dirty water connection and an overflow on the second of the side walls.
  • the water boxes have a lid, which is preferably dimensioned such that a simple cleaning of the interior by means of a water hose is possible.
  • both water boxes have a slot arranged in their lower part for the Water flow on. The filling takes place in one of the two water tanks and is regulated by the level device.
  • the decompressor is particularly suitable for a waste incineration plant, since very inhomogeneous combustion residues can occur, especially in waste incineration, which can lead to the aforementioned Verspannmomenten in conventional drive arrangements.
  • the invention thus also relates to the use of the slag remover for a waste incineration plant.
  • Typical tub widths of a slag remover for a waste incineration plant are in the range of about 2 m to 2.5 m. But there are also larger tub widths, preferably up to about 3.2 m conceivable.
  • the mouth of the inlet shaft into the trough typically has an extension of approximately 1 m to 1.5 m in the longitudinal direction of the trough. Depending on the purpose and objective, the dimensions can be readily adapted by the person skilled in the art who has become aware of the invention.
  • the in Fig. 1 Entschlacker 2 shown is usually arranged in the region of the outlet of a combustion chamber, not shown, of a combustion system. From the combustion grate of the combustion chamber, the incombustible combustion residues (slag) fall into a vertically extending intake shaft 4, which can expand in a funnel shape towards the outlet of the combustion chamber.
  • the intake shaft 4 opens into a trough 6 filled with water, which is arranged on a support structure with corresponding pillars 7 and extends in a direction perpendicular to the orientation of the entrance shaft 4 extending longitudinal direction.
  • the trough 6 has a trough housing 8 with two side walls 10a, 10b defining the trough width, each extending in a vertical plane parallel to the longitudinal direction, and a trough bottom 14 arched below the inlet shaft opening 12.
  • a dense closable opening 16 is provided which allows access to the tub interior for cleaning purposes.
  • the intake shaft 4 has a front wall 22, viewed in the direction of displacement, and a rear wall 24. As in particular from Fig. 4 it can be seen lying in a Ausschiebecardi behind the chute 4 area lying the trough 6 in the form of two separate troughs 26a, 26b, which open obliquely downwards in a directly below the chute 4 arranged trough 28 open.
  • the troughs 26a, 26b on the one hand (on each side facing away from the longitudinal center plane) bounded by the respective side wall 10a and 10b of the trough 6 and on the other hand via one of the longitudinal center plane and parallel thereto extending groove wall 30a and 30b. Between the troughs 26a, 26b or between the gutter walls 30a, 30b, a gap 32 is formed. Opposite the tub basin 28, the intermediate space 32 is separated by a separating plate 34. In the embodiment shown this has a vertical region 34 'and a horizontal region 34 "adjoining it, in particular from FIGS Fig.s 1 and 2 is apparent.
  • these shaft bearings 36a, 36b extending over the width of the tub shaft 38 is rotatably mounted.
  • both the drive lever 44 and the output levers 40a, 40b are welded to the shaft 38.
  • the drive lever 44 is arranged on the shaft 38 centrally between the output levers 40a, 40b and extends together with the cylinder piston unit 48 in the vertical longitudinal center plane of the trough. 6
  • the cylinder piston unit 48 is disposed in the intermediate space 32 between the troughs 26a, 26b and mounted via an axis 50 in the channel walls 30a, 30b, such as out Fig. 4 is apparent.
  • the cylinder piston unit 48 When retracted piston 46, the cylinder piston unit 48 is substantially horizontal, that is arranged parallel to the longitudinal axis of the trough 6.
  • the push rods 42a, 42b have a bend and are divided by these into a front arm segment 52 and a rear arm segment 54.
  • a thrust shield 56 extending over both ends is mounted, which has an end face 58 and a cover 60 which extends obliquely in a plane to the plane of the end face and rests on the front arm segment 52.
  • a sliding shoe 61 is arranged in the embodiment shown, moreover, which rests on a slideway 62 formed by the trough bottom 14.
  • the trough 6 has a flap 64, the free end 64 'rests on the cover 60 and the free end of the opposite edge 64' 'above the lower edge 24' of the rear wall 24 of the chute 4 is located.
  • the end face 58, the flap 64 and the rear wall 24 of the chute 4 substantially in the same vertical plane.
  • the thrust shield 56 laterally also each one of the respective side wall 10a and 10a of the tub 6 associated, further cover plate 66a, 66b.
  • the movement of the push rods 42a, 42b via the drive arrangement is in particular from the Fig.s 1 and 2 seen.
  • a torque is applied to the shaft 38 by extending the piston 46 of the cylinder piston unit 48 via the drive lever 44, whereby the push rods 42a, 42b are moved from a retracted position to an extended position via the output lever 40a, 40b.
  • the captured in the pan 6 combustion residues are pushed out of the tub out in the Ausschubschurre 18 and on the Ausschubbahn 20.
  • the flap 64 pivots upwards, wherein it rests with its free end 64 'uninterrupted on the cover 60. In this case, combustion residues located in the intake shaft 4 settle on the cover 60 or on the flap 64.
  • the trough bottom 14 in the region of the trough 28 becomes again for incineration residues incident from above Approved.
  • the flap 64 pushes the combustion residues deposited on the cover 60 over the front edge of the cover so that they are deposited on the pan bottom 14 in front of the end face 58.
  • troughs 26a, 26b which in the embodiment shown have a substantially rectangular cross-section.
  • the intermediate space 32 formed between the troughs 26a, 26b and encompassing the cylinder piston unit 48 is separated on the one hand by the gutter walls 30a, 30b facing the longitudinal center plane and on the other hand by a separating plate 34 from the trough filled with water.
  • the vertical region 34 'of the separating plate 34 extends in a vertical plane which, viewed in the direction of ejection, extends behind the vertical plane of the rear wall 24 of the inlet shaft 4.
  • the region of the trough 6 lying behind the inlet shaft 4 and the intermediate space 32 are by means of a covering hood 68 covered, in particular in Fig. 5 is shown. This is equipped with openings 70 which allow access to both the troughs 26a, 26b and the gap 32 from above.
  • the illustrated arrangement of the drive lever 44 in relation to the output levers 40a, 40b according to the present invention allows optimum power transmission to the pushrod. Verspannmomente, as they may occur in particular in the presence of two cylinder piston units are effectively avoided according to the invention.
  • the use of bearing blocks allows, moreover, a relatively simple assembly and disassembly of the shaft 38.
  • the inventively opened way to weld the output lever 40a, 40b and the drive lever 44 with the shaft 38, can be dispensed with costly keyways.
EP11006950.7A 2011-08-25 2011-08-25 Dispositif de décrassage destiné à la sortie de résidus de combustion d'une installation de combustion Active EP2562477B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
ES11006950.7T ES2551721T3 (es) 2011-08-25 2011-08-25 Aparato para la retirada de escorias para extraer residuos de combustión de una instalación de combustión
EP11006950.7A EP2562477B1 (fr) 2011-08-25 2011-08-25 Dispositif de décrassage destiné à la sortie de résidus de combustion d'une installation de combustion
PL11006950T PL2562477T3 (pl) 2011-08-25 2011-08-25 Odżużlacz do usuwania pozostałości po spalaniu instalacji do spalania
US13/585,355 US8967058B2 (en) 2011-08-25 2012-08-14 Slag remover for discharging combustion residues of an incineration plant
JP2012185557A JP6120506B2 (ja) 2011-08-25 2012-08-24 焼却プラントの燃え殻を排出するスラグ除去装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP11006950.7A EP2562477B1 (fr) 2011-08-25 2011-08-25 Dispositif de décrassage destiné à la sortie de résidus de combustion d'une installation de combustion

Publications (2)

Publication Number Publication Date
EP2562477A1 true EP2562477A1 (fr) 2013-02-27
EP2562477B1 EP2562477B1 (fr) 2015-09-30

Family

ID=44508653

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11006950.7A Active EP2562477B1 (fr) 2011-08-25 2011-08-25 Dispositif de décrassage destiné à la sortie de résidus de combustion d'une installation de combustion

Country Status (5)

Country Link
US (1) US8967058B2 (fr)
EP (1) EP2562477B1 (fr)
JP (1) JP6120506B2 (fr)
ES (1) ES2551721T3 (fr)
PL (1) PL2562477T3 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105509076A (zh) * 2016-01-20 2016-04-20 大峘集团有限公司 石灰套筒窑煤粉燃烧应用中的机械清渣方法及装置
CN106122989A (zh) * 2016-07-08 2016-11-16 吴鹏 一种锅炉出灰口出灰装置
CN113369774A (zh) * 2021-06-29 2021-09-10 中铁九局集团第七工程有限公司 一种湿接缝用焊接工装

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106642171B (zh) * 2016-12-08 2019-05-21 江苏大唐机械有限公司 一种捞渣机双推杆装置
CN113063140A (zh) * 2021-04-28 2021-07-02 浙江工商职业技术学院 一种基于超导气化家用反烧锅炉

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US4520738A (en) * 1984-06-19 1985-06-04 Kabushiki Kaisha Takuma Device to force out incineration ash
EP0363645A1 (fr) 1988-10-11 1990-04-18 W + E Umwelttechnik Ag Dispositif de décendrage pour installations de combustion
WO2005078346A1 (fr) * 2004-02-12 2005-08-25 Magaldi Ricerche E Brevetti S.R.L. Dispositif de concassage primaire pour transporteur/refroidisseur de matieres chaudes a l'etat libre

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JP2988830B2 (ja) * 1994-06-16 1999-12-13 日立造船株式会社 水冷灰の排出装置
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Patent Citations (5)

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Publication number Priority date Publication date Assignee Title
US2764277A (en) * 1950-06-21 1956-09-25 Mitchell Frederick Gilbert Conveyor for loose materials in bulk
DE2539615A1 (de) 1975-09-05 1977-03-17 Martin Joh Jos Dr Ing Entschlackungseinrichtung fuer grossfeuerungen
US4520738A (en) * 1984-06-19 1985-06-04 Kabushiki Kaisha Takuma Device to force out incineration ash
EP0363645A1 (fr) 1988-10-11 1990-04-18 W + E Umwelttechnik Ag Dispositif de décendrage pour installations de combustion
WO2005078346A1 (fr) * 2004-02-12 2005-08-25 Magaldi Ricerche E Brevetti S.R.L. Dispositif de concassage primaire pour transporteur/refroidisseur de matieres chaudes a l'etat libre

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105509076A (zh) * 2016-01-20 2016-04-20 大峘集团有限公司 石灰套筒窑煤粉燃烧应用中的机械清渣方法及装置
CN106122989A (zh) * 2016-07-08 2016-11-16 吴鹏 一种锅炉出灰口出灰装置
CN113369774A (zh) * 2021-06-29 2021-09-10 中铁九局集团第七工程有限公司 一种湿接缝用焊接工装
CN113369774B (zh) * 2021-06-29 2023-02-21 中铁九局集团第七工程有限公司 一种湿接缝用焊接工装

Also Published As

Publication number Publication date
JP2013044522A (ja) 2013-03-04
EP2562477B1 (fr) 2015-09-30
US20130047899A1 (en) 2013-02-28
ES2551721T3 (es) 2015-11-23
US8967058B2 (en) 2015-03-03
PL2562477T3 (pl) 2016-03-31
JP6120506B2 (ja) 2017-04-26

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