EP1264141A1 - Procede et dispositif pour reparer la garniture interieure d'un foyer - Google Patents

Procede et dispositif pour reparer la garniture interieure d'un foyer

Info

Publication number
EP1264141A1
EP1264141A1 EP01919212A EP01919212A EP1264141A1 EP 1264141 A1 EP1264141 A1 EP 1264141A1 EP 01919212 A EP01919212 A EP 01919212A EP 01919212 A EP01919212 A EP 01919212A EP 1264141 A1 EP1264141 A1 EP 1264141A1
Authority
EP
European Patent Office
Prior art keywords
combustion chamber
treatment device
boiler
lining
furnace
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
EP01919212A
Other languages
German (de)
English (en)
Other versions
EP1264141B1 (fr
Inventor
Wolfgang Schmid
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.)
TISKA Technische Instandsetzung Service GmbH fuer Kraftwerke
Original Assignee
TISKA Technische Instandsetzung Service GmbH fuer Kraftwerke
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 TISKA Technische Instandsetzung Service GmbH fuer Kraftwerke filed Critical TISKA Technische Instandsetzung Service GmbH fuer Kraftwerke
Publication of EP1264141A1 publication Critical patent/EP1264141A1/fr
Application granted granted Critical
Publication of EP1264141B1 publication Critical patent/EP1264141B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/16—Making or repairing linings ; Increasing the durability of linings; Breaking away linings
    • F27D1/1694—Breaking away the lining or removing parts thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J3/00—Removing solid residues from passages or chambers beyond the fire, e.g. from flues by soot blowers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
    • F23M20/00—Details of combustion chambers, not otherwise provided for, e.g. means for storing heat from flames
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
    • F23M5/00—Casings; Linings; Walls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00—Casings; Linings; Walls; Roofs
    • F27D1/16—Making or repairing linings ; Increasing the durability of linings; Breaking away linings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D21/00—Arrangement of monitoring devices; Arrangement of safety devices
    • F27D21/02—Observation or illuminating devices
    • F27D2021/026—Observation or illuminating devices using a video installation

Definitions

  • the invention relates to a method and a device for repairing or renewing a lining of a combustion chamber of a combustion furnace or boiler, in particular a waste incineration plant, with grate on the underside and a filling shaft on the side, which is connected to the combustion chamber on the underside via a charging mouth, at which caking occurs the firebox walls are chipped off and / or damaged areas of the lining are broken off, and the exposed areas of the lining are sandblasted and provided with a new lining.
  • Boilers of waste incineration plants are often designed as vertical draft boilers, with the combustion chamber reaching a height of approx. 10m to 15m vertically.
  • the lower part of the fire chamber, which faces the fire, is lined with a refractory ceramic mass.
  • Such linings are subject to wear and will usually be repaired once a year. In addition, sticking fly ash particles can cause caking on the firebox walls, which can impair the operation of the boiler. In the case of revisions, such links are first knocked off. Then a scaffold is set up in the firebox. The damaged areas of the lining are then broken off manually or with pneumatic hammers. After this work, the exposed surfaces of the lining and the boiler are sandblasted. Finally, the tube walls of the boiler are examined, damaged pins intended to hold the lining are cut off and new pins are welded on. Then the lining is repaired or renewed and the scaffolding disassembled. Such a repair of a firebox is very expensive.
  • the invention at least knocks off the hooks and / or breaks off the damaged areas of the
  • the downtime of the system is particularly short if the combustion chamber treatment device is already available during a combustion operation of the incinerator or boiler and inserted immediately after the combustion operation of the incinerator or boiler through the side filling shaft of the incinerator or boiler and fastened in the area of the loading mouth becomes.
  • an extendable or fold-out, movable part of the furnace treatment device can be treated in the furnace Positions of the combustion chamber walls. The operator places them in the filling shaft, fastens them in the area of the loading mouth and positions the movable part by remote control from outside the incinerator or boiler.
  • Reliable revision operations are made possible by on-site monitoring of the repair or renewal process using a video camera.
  • the chipped and broken off parts of the caking and lining areas can be removed through the already existing underside grate of the incinerator or boiler, so that the rubble does not have to be removed separately.
  • a furnace treatment device which has the following features: a fastening part for fixing the furnace treatment device in the region of a loading mouth (6) of the furnace,
  • the fastening part preferably has hydraulic locking means which, in an extended state, fix the firebox treatment device in the area of the loading mouth of the firebox, in particular jamming and / or locking it in a form-fitting manner.
  • the fastening part can also have an extendable arm which can be extended into the combustion chamber when the fastening part is ascertained.
  • the boom and / or the fastening part can also be anchored in secondary air nozzles in the area of the combustion chamber. This results in a particularly good stability of the device according to the invention.
  • the spatially movable part of the combustion chamber treatment device comprises a spatially movable arm, an at least two-articulated arm, in particular a telescopic arm, which can be pivoted and can be extended in length.
  • the arm can also be rotatable, pivotable and telescopic in the area of the fastening part fastened in the loading mouth in a swivel connection with the end of the arm parallel to the vertical axis of the combustion chamber.
  • the swivel joint can be realized with a stable slewing ring.
  • the rotating, swiveling and, if necessary, telescoping takes place in the combustion chamber by means of a controlled power drive.
  • the telescopic arm and the boom can be operated hydraulically.
  • a holder for a video camera and a headlight can also be located in the area of the tool holder on the free, unattached end of the movable part of the furnace treatment device.
  • the aforesaid furnace treatment device is provided with a transportable operating unit for an operator, which is parked outside in the area of the incinerator or boiler during a repair or renewal operation of the furnace.
  • the operating unit expediently has an auxiliary device, preferably an extension arm, through which the rest of the furnace treatment device can be lowered through the filling shaft of a combustion furnace or boiler into the area of the loading mouth, preferably onto a loading table.
  • an auxiliary device preferably an extension arm
  • the control unit also includes an electrical connection for an external electrical supply line and preferably hydraulic and pneumatic supply units, mechanical, electrical and electronic control devices, monitoring devices and an operator's cabin, supply and control lines preferably being laid in a hose package, possibly up to the tool holder are.
  • a compressed air line is laid from the operating unit to the tool holder for cooling, if necessary, or expediently, of at least part of the combustion chamber treatment device.
  • An aforementioned arrangement of a combustion chamber treatment device with an operating unit together with a boiler is used in particular in a waste incineration plant for a repair or renewal operation of the combustion chamber of the boiler, the control unit being arranged in the area outside the boiler and the rest of the combustion chamber treatment device inside the boiler is and wherein supply lines and control lines are laid between the control unit and tool holder and wherein the control unit is connected to an external electrical supply line.
  • combustion chamber treatment device for example in the form of a combustion chamber gripping arm in addition to an external control unit, practically all of the repair work mentioned at the beginning can be largely automated.
  • the combustion chamber gripper arm is inserted through a filling funnel in the filling shaft and fixed on the loading table or the addition table of the fuel. After extending a With a horizontal boom in the middle of the firebox, a vertical part of the gripper arm is set up with the appropriate tools. In this way, caking can be removed and damaged areas can be broken off and sandblasted.
  • a basket for transporting people the tube walls of the boiler can be examined, further repair work can be carried out and a new lining can be attached.
  • the firebox gripper arm and the operating unit are connected to one another when they are not in use and in particular for transport from site to site.
  • the firebox gripper arm can also be in a compact transport position, in which moving parts are retracted and swung in.
  • the firebox gripper arm and the control unit can be transported by a waste crane to the refuse hopper and connected there electrically. Then the firebox gripper arm is separated from the control unit and lowered by the auxiliary device in the form of an attached extension arm of the control unit through the feed chute onto the loading table or onto the addition table. The firebox grab arm is aligned and fixed there. Then the gripper arm is extended and equipped with the tools.
  • the firebox gripping arm is divided into two parts, viewed geometrically, namely a horizontal part, which is designed as a fastening part with an extendable horizontal arm, and a vertical part, which is designed as a movable part.
  • the horizontal part is designed as a steel structure, which is preferably equipped with hydraulic cylinders so that the firebox gripper arm can be attached to the "loading" of the furnace or boiler can be fixed against occurring loads.
  • the horizontal part also includes a boom on which the vertical part is mounted and which can be extended to approximately the middle of the firebox.
  • the vertical part is a preferably hydraulically actuated at least two-articulated arm, which can also be extended in length, so that it can be reached at all points in the combustion chamber.
  • At the extreme end of the arm there is at least one tool holder as well as a holder for a video camera and a headlight so that operation can be carried out from outside the boiler.
  • a compressed air line is also integrated in order to provide any cooling air and compressed air working energy that may be required.
  • a slewing ring is provided for fastening and for connection to the horizontal part.
  • the control unit can also include an operator cabin from which the firebox gripper arm can be remotely controlled.
  • Supply units such as a hydraulic tank, a hydraulic pump and control devices such as hydraulic proportional valves are also housed in the control unit.
  • the firing arm is supplied by a hose package. There is a screen in the operator's cab on which the images from the video camera can be transmitted.
  • the working speed can be increased significantly because a machine exerts greater forces than a human. This particularly affects demolition work.
  • FIG. 1 shows a vertical section through a boiler of a waste incineration plant with an inserted fire chamber gripper arm
  • FIG. 2 shows a vertical section through a boiler of another waste incineration plant with an inserted fire chamber gripper arm.
  • a boiler 3 of a waste incineration plant composed of an incinerator and a heat exchanger (not shown here), comprises a combustion chamber 2 with an inner casing-side lining 1 and with a grate 4 on the underside as well as a lateral filling shaft 5, which is connected on the side via a loading table 15 and a loading mouth 6 to the combustion chamber 2.
  • caking on the firebox walls is usually chipped off and damaged areas of the lining 1 are broken off with a jackhammer, and the exposed surfaces of the lining 1 are sandblasted and provided with a new lining.
  • At least the caking off and the damaged areas of the lining 1 are broken off by a furnace treatment device 7, which is operated by an operator from outside the boiler 3.
  • the combustion chamber treatment device 7 can also be used as a mobile support for a platform from which workers carry out work on the interior of the combustion chamber.
  • the combustion chamber treatment device 7 is provided during a firing operation of the boiler 3 and, after the firing operation of the boiler has ended, is partially introduced through the side filling shaft 5 of the boiler by means of an auxiliary device and fastened in the area of the loading mouth 6, in particular on a loading table 15. After fastening in the boiler, an extendable and foldable, space-movable part 9 of the combustion chamber treatment device 7 is positioned in the combustion chamber 2 at locations on the combustion chamber walls to be treated and in particular at damaged locations on the lining 1. Both the movable part 9 and the fastening part 8 can additionally be supported in the interior of the boiler 3 by supports, not shown here, in secondary air nozzles 16.
  • the introduction of the combustion chamber treatment device 7 into the filling shaft 5, the fastening in the area of the loading mouth 6 and the positioning of the movable part 9 is carried out by remote control from outside the boiler 3 by an operator, not shown here.
  • the repair or repair Renewal process of the furnace treatment device 7 is monitored on site by a video camera, not shown here.
  • the chipped and broken off parts of the caking and lining areas are removed through the already existing underside grating 4 of the boiler 3.
  • the combustion chamber treatment device 7 for repairing or renewing the lining 1 comprises, in addition to the fastening part 8 for fixing the combustion chamber treatment device in the area of the loading mouth 6 of the combustion chamber 2, and the extendable and foldable, space-moving part 9 for positioning at least one tool to be treated, in particular damaged areas of a lining of the combustion chamber, also a tool holder 10 at the free, unfastened end of the movable part of the combustion chamber treatment device for detachable fastening of at least one tool, in particular a pneumatic hammer.
  • the fastening part 8 is a steel structure with hydraulic locking means 11 in the form of cylinders which can be extended vertically and which, in an extended state, fix the firebox treatment device 7 in the area of the loading mouth 6 of the firebox 2, in particular jam and / or even lock it in a form-fitting manner.
  • the steel structure In the ascertained state, the steel structure extends horizontally in such a way that a horizontal arm 12 can be extended to the center 13 of the combustion chamber 2.
  • the movable part 9 comprises a hydraulically operated, double telescopic vertical part, which is connected to the boom 12 at the free end of the boom 12 via a hydraulically operated turntable.
  • the movable part 9 can be rotated there by 360 ° about the central vertical axis 14 of the combustion chamber 2.
  • At the upper end of the double telescopic vertical part there is a hydraulic swivel joint with articulation of a swivel arm that extends at least 90 ° from the vertical to the horizontal can be pivoted.
  • the arrangement is such that essentially every jacket-side lining point can be reached with the tip of the aforementioned swivel arm.
  • Swing arm in the tool holder 10 attached pneumatic hammer can therefore be positioned and operated at desired locations on the lining 1 of the combustion chamber.
  • the pneumatic hammer is connected to the control unit outside the boiler 3 via a compressed air line not shown here and is supplied with compressed air. Together with the compressed air line, additional lines are laid in a package: electrical lines for a headlight and a video camera, control lines for the hydraulic control for the cylinder and slewing ring, as well as an additional compressed air line with jacket-side openings at different intervals for cooling to avoid overheating on individual parts of the Reliably exclude combustion chamber treatment device 7 inside the boiler 3.
  • the operating unit has an auxiliary device in the form of a cantilever, through which further parts of the furnace treatment device can be lowered through the filling shaft 5 into the area of the loading mouth 6 and in particular onto the loading table 15.
  • the control unit comprises an electrical connection for an external electrical supply line, hydraulic and pneumatic supply units, mechanical, electrical and electronic control devices, monitoring devices and an operator's cabin.
  • the exemplary embodiment illustrated in FIG. 2 essentially corresponds to the exemplary embodiment according to FIG. 1.
  • the movable part 9 of the firebox operating device 7 does not have a telescopic vertical arm, but three pivot arms articulated to one another, the foremost free end of which holds the tool holder 10 and the lower end of which is connected to the slewing ring of the boom 12 of the horizontal part or of the fastening part 8.
  • a tool arranged in the tool holder 10 can be positioned at any desired location on the lining 1 of the combustion chamber 2.
  • the individual lengths of the swivel arms are designed in such a way that the uppermost combustion chamber height can also be reached.
  • the length of a swivel arm can be between half to almost the entire diameter of the combustion chamber 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Gasification And Melting Of Waste (AREA)

Abstract

L'invention concerne un procédé pour réparer ou rénover la garniture intérieure (1) d'un foyer (2) d'une installation d'incinération des ordures ménagères. Selon ledit procédé, l'enlèvement des parties ayant adhéré et/ou la démolition des parties endommagées de la garniture (1) se font au moyen d'un appareil d'entretien de foyer (7) qui est commandé par un utilisateur depuis l'extérieur du four de combustion ou de la chaudière (3).
EP01919212A 2000-03-17 2001-03-16 Procede et dispositif pour reparer la garniture interieure d'un foyer Expired - Lifetime EP1264141B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10013031A DE10013031A1 (de) 2000-03-17 2000-03-17 Verfahren und Vorrichtung zur Reparatur einer Auskleidung eines Feuerraums
DE10013031 2000-03-17
PCT/DE2001/001038 WO2001069133A1 (fr) 2000-03-17 2001-03-16 Procede et dispositif pour reparer la garniture interieure d'un foyer

Publications (2)

Publication Number Publication Date
EP1264141A1 true EP1264141A1 (fr) 2002-12-11
EP1264141B1 EP1264141B1 (fr) 2007-11-21

Family

ID=7635102

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01919212A Expired - Lifetime EP1264141B1 (fr) 2000-03-17 2001-03-16 Procede et dispositif pour reparer la garniture interieure d'un foyer

Country Status (4)

Country Link
EP (1) EP1264141B1 (fr)
AU (1) AU4638301A (fr)
DE (3) DE10013031A1 (fr)
WO (1) WO2001069133A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005032818B4 (de) * 2005-07-12 2007-07-19 BRÜNDERMANN, Georg Verfahren zur Reinigung von Kraftwerkskesseln
DE102008030288B3 (de) * 2008-06-30 2010-01-07 Indutec Umwelttechnik Gmbh & Co. Kg Verfahren zur Entfernung von Feuerfestauskleidung in Brennkesseln
US8978579B2 (en) 2009-11-04 2015-03-17 Ingeníera y Marketing, S.A. Method and device for regenerating the interior surfaces of conduits by means of thermal spraying of metals
WO2020139556A1 (fr) * 2018-12-26 2020-07-02 Exxonmobil Research And Engineering Company Inspection, retrait et installation à distance de réfractaire
CN113532124B (zh) * 2021-07-06 2023-05-09 山东凯翔传热科技有限公司 一种炉衬打结用炉底加料机

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Publication number Priority date Publication date Assignee Title
SE322595B (fr) * 1965-05-17 1970-04-13 Skanska Cementgjuteriet Ab
US4301998A (en) * 1980-04-25 1981-11-24 Pfizer Inc. Vertical gunning apparatus with television monitor
DE8400322U1 (de) * 1984-01-07 1985-02-14 Oberdorfer, Hans, 8500 Nürnberg Vorrichtung zur beobachtung und/oder bearbeitung der innenwaende von rohrfoermigen hohlraeumen
JPS60205117A (ja) * 1984-03-30 1985-10-16 Babcock Hitachi Kk 炉壁清掃補修装置
JPH065155B2 (ja) * 1984-10-12 1994-01-19 住友金属工業株式会社 窯炉の炉壁補修装置
DE4137453C1 (fr) * 1991-11-14 1992-05-27 Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De
US5381811A (en) * 1994-03-02 1995-01-17 C.H. Heist Corp. Furnace cleaning apparatus

Non-Patent Citations (1)

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Title
See references of WO0169133A1 *

Also Published As

Publication number Publication date
DE10190972B4 (de) 2010-08-26
DE10190972D2 (de) 2003-05-22
EP1264141B1 (fr) 2007-11-21
AU4638301A (en) 2001-09-24
DE10013031A1 (de) 2001-09-20
DE50113293D1 (de) 2008-01-03
WO2001069133A1 (fr) 2001-09-20

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