EP0321898A1 - Protection device for a boiler wall with heat recovery and method of manufacturing same - Google Patents

Protection device for a boiler wall with heat recovery and method of manufacturing same Download PDF

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Publication number
EP0321898A1
EP0321898A1 EP88121208A EP88121208A EP0321898A1 EP 0321898 A1 EP0321898 A1 EP 0321898A1 EP 88121208 A EP88121208 A EP 88121208A EP 88121208 A EP88121208 A EP 88121208A EP 0321898 A1 EP0321898 A1 EP 0321898A1
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EP
European Patent Office
Prior art keywords
bricks
fins
refractory
windows
screen
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
EP88121208A
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German (de)
French (fr)
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EP0321898B1 (en
Inventor
Jean Fournier
Adrian Casariego
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.)
ALSTOM POWER BOILERS;ABB ALSTOM POWER COMBUSTION;A
Original Assignee
Stein Industrie SA
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Publication date
Application filed by Stein Industrie SA filed Critical Stein Industrie SA
Priority to AT88121208T priority Critical patent/ATE64450T1/en
Publication of EP0321898A1 publication Critical patent/EP0321898A1/en
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Publication of EP0321898B1 publication Critical patent/EP0321898B1/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • F23M5/08—Cooling thereof; Tube walls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00—Component parts or details of steam boilers
    • F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
    • F22B37/10—Water tubes; Accessories therefor
    • F22B37/107—Protection of water tubes
    • F22B37/108—Protection of water tube walls
    • 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
    • F23M5/04—Supports for linings
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S122/00—Liquid heaters and vaporizers
    • Y10S122/13—Tubes - composition and protection
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4935—Heat exchanger or boiler making
    • Y10T29/49357—Regenerator or recuperator making

Definitions

  • the present invention relates to a device for protecting a heat recovery boiler screen, in particular for refuse incineration ovens, this screen being formed of vertical tubes joined by welded securing fins, arranged in brick cavities. refractory, and provided with means for hanging refractory bricks. It also extends to a method of manufacturing this device.
  • each tube in addition to the junction fins, be provided with fins intended for hooking bricks, and in that it is supplied with bricks of two different types.
  • the object of the present invention is to provide a device for protecting boiler screens which does not require welding on each tube of fins for attaching bricks, and which only uses one type of refractory brick.
  • the device according to the invention is characterized in that the screen has windows pierced in the securing fins, in that the bricks are each provided with at least one pin latching pin forming an angle with the horizontal and such that each brick is kept suspended by its weight in the window (s) of the corresponding screen, and in that the gaps remaining between the bricks, their lugs and the screen are filled with refractory cement .
  • the windows of the screen are of substantially rectangular shape, as is the cross section of the nipples for hanging the bricks.
  • the manufacturing process according to the invention is characterized in that the longitudinal fins are welded between the vertical tubes, in that the windows are cut from these fins at regular vertical spacings, corresponding to the height of the refractory bricks , in that a layer of refractory cement is applied to the surface of the tubes and fins intended to receive the refractory bricks, and what is hung in the windows each of the bricks by its hooking stud.
  • the device comprises metal boxes filled with refractory cement, welded between the vertical tubes of the longitudinal fins, windows are cut from these fins with regular vertical spacings, corresponding to the height of the refractory bricks, applied to the rear face fins around the windows a housing, and welds this housing on this rear face, the housing is filled with refractory cement, a layer of refractory cement is applied to the surface of the tubes and fins intended to receive the refractory bricks, and we hang in the windows each of the bricks by its hooking stud.
  • the tubes 1 and 2 and the adjacent tubes are joined by fins such as 3, 4, 5, to form a screen.
  • the fin 3 arranged between the tubes 1 and 2 is pierced at regular vertical intervals with windows for hanging refractory bricks, for example with silicon carbide.
  • a single window 6 and the corresponding refractory brick 7 have been shown.
  • the refractory brick 7 is provided with a hooking stud 8 with an axis inclined on the horizontal, for example at 45 °, and directed downwards.
  • the window is of substantially rectangular shape and the cross section of the attachment stud is also rectangular, and of height and width slightly less than the height and the width of the window.
  • a refractory cement 9 is placed in the gaps remaining between the refractory bricks and between these and the metal screen, in particular in the window around the periphery of the attachment stud.
  • horizontal rods such as 10 and vertical rods such as 11 ensure good securing of the adjacent bricks vertically and horizontally.
  • the device of Figures 3 and 4 is similar to that of Figures 1 and 2, but it further comprises a metal box 12 welded to the junction fin by weld beads 13 above the window and 14 below the window.
  • This box has a rear panel 17, an upper panel 16 and a lower panel 18. It is applied laterally against the periphery of the tubes 1 and 2, and thus constitutes a cavity which is filled with refractory cement around the nipple d anchor 8 of the corresponding brick. It is possibly hung on the lower edge of the corresponding window by a flat blade forming a spring (not shown).
  • windows are formed at regular vertical intervals, corresponding to the height of the refractory bricks, windows by automatic punching.
  • a layer of refractory cement of a few centimeters on the surface of the fins and tubes, then hang the bricks in the windows thanks to their hooking stud, after having also fitted the side faces of the bricks facing each other a layer of refractory cement.
  • the connecting rods made of refractory material 10, 11 are introduced into the vertical and horizontal channels of the lateral, upper and lower faces of the bricks.
  • the protective device comprises a box filled with refractory cement drowning the nipple for hanging the brick (fig. 3 and 4)
  • the box 12 is placed behind the window, after having possibly hung it on the lower edge of the corresponding window thanks to a flat blade forming a spring.
  • the upper and lower sides of the box are welded to the fin with weld beads, the cavity thus formed is filled with refractory cement, then the layer of refractory cement is applied to the tubes and the fins.
  • the side faces of the bricks are also provided opposite with a layer of refractory cement, and the rods for fastening the adjacent bricks are introduced into the channels and verticals of the bricks.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical & Material Sciences (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
  • Control Of Steam Boilers And Waste-Gas Boilers (AREA)
  • Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
  • Control Of Combustion (AREA)

Abstract

Protection device for a boiler wall with heat recovery, formed from vertical tubes (1, 2) which are connected by welded joining fins (3, 4, 5) arranged in cavities of refractory bricks (7) and provided with means of attachment of the refractory bricks, and method for its manufacture. The wall comprises windows cut in the fins, the bricks are each provided with at least one attachment stud (8) with an axis forming an angle with the horizontal and such that each brick is held suspended by its weight in the window or windows of the corresponding wall, and the spaces subsisting between the bricks, their attachment studs and the wall are filled with a refractory cement (9). <IMAGE>

Description

La présente invention concerne un dispositif de protection d'un écran de chaudière de récupération de chaleur, notamment pour fours d'incinération d'ordures, cet écran étant formé de tubes verticaux réunis par des ailettes de solidarisation soudées, disposés dans des cavités de briques réfractaires, et munis de moyens d'accro­chage des briques réfractaires. Elle s'étend en outre à un procédé de fabrication de ce dispositif.The present invention relates to a device for protecting a heat recovery boiler screen, in particular for refuse incineration ovens, this screen being formed of vertical tubes joined by welded securing fins, arranged in brick cavities. refractory, and provided with means for hanging refractory bricks. It also extends to a method of manufacturing this device.

Il a été proposé dans le document FR-A-2611864 avec la demande de brevet au USA correspondante n° 160804 du 26 février 1980 de la demanderesse un dispositif de protection d'écrans de chaudières formés de tubes verticaux réunis par des ailettes de solidarisation soudées, disposés entre des briques réfractaires et munis de moyens d'acccrochage des briques réfractaires, caractérisé en ce que les tubes sont munis en outre d'ailettes auxiliaires verticales faisant un angle compris entre 30° et 60° avec le plan des ailettes de solidarisation, en ce que les ailettes auxiliaires sont interrompues périodiquement sur des tronçons verticaux des tubes, en ce qu'une première partie des briques réfractaires est munie d'encoches verticales de largeur et d'épaisseur correspondant à celles des ailettes auxiliaires, ne s'étendant que sur une fraction de leur hauteur à partir du bas, et l'autre partie d'encoches verticales s'étendant sur toute leur hauteur, et en ce que les briques de la première partie sont accrochées sur la partie supérieure des ailettes auxiliaires et les briques de l'autre parties enfilées sur ces ailettes auxiliaires au-dessus d'une brique de la première partie.It was proposed in document FR-A-2611864 with the corresponding patent application in the USA n ° 160804 of February 26, 1980 by the applicant a device for protecting screens of boilers formed of vertical tubes joined by welded securing fins , arranged between refractory bricks and provided with means for hooking refractory bricks, characterized in that the tubes are also provided with vertical auxiliary fins making an angle between 30 ° and 60 ° with the plane of the securing fins, in that the auxiliary fins are periodically interrupted on vertical sections of the tubes, in that a first part of the refractory bricks is provided with vertical notches of width and thickness corresponding to those of the auxiliary fins, extending only on a fraction of their height from the bottom, and the other part of vertical notches extending over their entire height, and in that the bricks of the first part are hung on the upper part of the auxiliary fins and the bricks of the other part strung on these auxiliary fins above a brick of the first part.

Un tel dispositif nécessite cependant que l'on munisse chaque tube, en plus des ailettes de jonction, des ailettes destinées à l'accrochage des briques, et en ce que l'on s'approvisionne en briques de deux types différents.However, such a device requires that each tube, in addition to the junction fins, be provided with fins intended for hooking bricks, and in that it is supplied with bricks of two different types.

La présente invention a pour but de procurer un dispositif de protection d'écrans de chaudières qui ne nécessite pas le soudage sur chaque tube d'ailettes d'accrochage des briques, et qui ne fasse appel qu'à un type de brique réfractaire.The object of the present invention is to provide a device for protecting boiler screens which does not require welding on each tube of fins for attaching bricks, and which only uses one type of refractory brick.

Le dispositif selon l'invention est caractérisé en ce que l'écran comporte des fenêtres percées dans les ailettes de solidarisation, en ce que les briques sont munies chacune d'au moins un téton d'accrochage d'axe formant un angle avec l'horizontale et tel que chaque brique soit maintenue suspendue par son poids dans la ou les fenêtres de l'écran correspondant, et en ce que les intervalles subsistant entre les briques, leurs tétons d'accrochage et l'écran sont remplis d'un ciment réfractaire.The device according to the invention is characterized in that the screen has windows pierced in the securing fins, in that the bricks are each provided with at least one pin latching pin forming an angle with the horizontal and such that each brick is kept suspended by its weight in the window (s) of the corresponding screen, and in that the gaps remaining between the bricks, their lugs and the screen are filled with refractory cement .

Il répond en outre de préférence à au moins l'une des caractéris­tiques suivantes :
- Les fenêtres de l'écran sont de forme sensiblement rectangulaire, de même que la section droite des tétons d'accrochage des briques.
- Il comporte en outre des boîtes métalliques remplies de ciment réfractaire et soudées sur l'écran autour de chaque fenêtre.It also preferably meets at least one of the following characteristics:
- The windows of the screen are of substantially rectangular shape, as is the cross section of the nipples for hanging the bricks.
- It also includes metal boxes filled with refractory cement and welded to the screen around each window.

Le procéde de fabrication selon l'invention est caractérisé en ce que l'on soude entre les tubes verticaux des ailettes longitudi­nales, en ce que l'on découpe dans ces ailettes des fenêtres à des écartements verticaux réguliers, correspondant à la hauteur des briques réfractaires, en ce que l'on applique une couche de ciment réfractaire sur la surface des tubes et des ailettes destinée à recevoir les briques réfractaires, et ce que l'on accroche dans les fenêtres chacune des briques par son téton d'accrochage.The manufacturing process according to the invention is characterized in that the longitudinal fins are welded between the vertical tubes, in that the windows are cut from these fins at regular vertical spacings, corresponding to the height of the refractory bricks , in that a layer of refractory cement is applied to the surface of the tubes and fins intended to receive the refractory bricks, and what is hung in the windows each of the bricks by its hooking stud.

Lorsque le dispositif comporte des boîtes métalliques remplies de ciment réfractaire, on soude entre les tubes verticaux des ailettes longitudinales, on découpe dans ces ailettes des fenêtres à écartements verticaux réguliers, correspondant à la hauteur des briques réfrac­taires, l'on applique sur la face arrière des ailettes autour des fenêtres un boîtier, et soude ce boîtier sur cette face arrière, l'on remplit le boîtier de ciment réfractaire, on applique une couche de ciment réfractaire sur la surface des tubes et des ailettes destinée à recevoir les briques réfractaires, et l'on accroche dans les fenêtres chacune des briques par son téton d'accrochage.When the device comprises metal boxes filled with refractory cement, welded between the vertical tubes of the longitudinal fins, windows are cut from these fins with regular vertical spacings, corresponding to the height of the refractory bricks, applied to the rear face fins around the windows a housing, and welds this housing on this rear face, the housing is filled with refractory cement, a layer of refractory cement is applied to the surface of the tubes and fins intended to receive the refractory bricks, and we hang in the windows each of the bricks by its hooking stud.

De préférence, on découpe les fenêtres dans les ailettes par poinçonnage automatique.
Il est décrit ci-après, à titre d'exemple et en référence aux figures du dessin annexé, un dispositif de protection d'écrans de chaudières selon l'invention et son procédé de fabrication.

  • La figure 1 représente en coupe par un plan vertical selon l'axe I-I de la figure 2 un dispositif de protection.
  • La figure 2 représente le même dispositif en coupe par un plan horizontal, selon l'axe II-II de la figure 1.
  • La figure 3 représente en coupe par un plan vertical selon l'axe III-III de la figure 4 un dispositif de protection comportant une boîte métallique disposée derrière une fenêtre de l'écran, et dans laquelle vient s'engager le téton de la brique réfractaire passant par la fenêtre.
  • La figure 4 représente en coupe par un plan horizontal, selon l'axe IV-IV de la figure 3, le même dispositif à boîte métallique derrière la fenêtre de l'écran.
Preferably, the windows are cut out in the fins by automatic punching.
It is described below, by way of example and with reference to the figures of the appended drawing, a device for protecting screens of boilers according to the invention and its manufacturing process.
  • Figure 1 shows in section through a vertical plane along the axis II of Figure 2 a protection device.
  • FIG. 2 represents the same device in section through a horizontal plane, along the axis II-II of FIG. 1.
  • Figure 3 shows in section through a vertical plane along the axis III-III of Figure 4 a protection device comprising a metal box disposed behind a screen window, and in which engages the nipple of the brick refractory passing through the window.
  • Figure 4 shows in section through a horizontal plane, along the axis IV-IV of Figure 3, the same metal box device behind the screen window.

Dans les figures 1 et 2, les tubes 1 et 2 et les tubes adjacents sont réunis par des ailettes telles que 3, 4, 5, pour former un écran. L'ailette 3 disposée entre les tubes 1 et 2 est percée à intervalles verticaux réguliers de fenêtres d'accrochage de briques réfractaires, par exemple au carbure de silicium. Une seule fenêtre 6 et la brique réfractaire correspondante 7 ont été représentées. La brique réfractaire 7 est munie d'un téton d'accrochage 8 d'axe incliné sur l'horizontale, par exemple à 45°, et dirigé vers le bas. La fenêtre est de forme sensiblement rectangulaire et la section droite du téton d'accrochage est également rectangulaire, et de hauteur et de largeur légèrement inférieures à la hauteur et à la largeur de la fenêtre. Un ciment réfractaire 9 est disposé dans les intervalles subsistant entre les briques réfractaires et entre celles-ci et l'écran métallique, notamment dans la fenêtre sur le pourtour du téton d'accrochage.In Figures 1 and 2, the tubes 1 and 2 and the adjacent tubes are joined by fins such as 3, 4, 5, to form a screen. The fin 3 arranged between the tubes 1 and 2 is pierced at regular vertical intervals with windows for hanging refractory bricks, for example with silicon carbide. A single window 6 and the corresponding refractory brick 7 have been shown. The refractory brick 7 is provided with a hooking stud 8 with an axis inclined on the horizontal, for example at 45 °, and directed downwards. The window is of substantially rectangular shape and the cross section of the attachment stud is also rectangular, and of height and width slightly less than the height and the width of the window. A refractory cement 9 is placed in the gaps remaining between the refractory bricks and between these and the metal screen, in particular in the window around the periphery of the attachment stud.

Entre les briques, des joncs horizontaux tels que 10 et verticaux tels que 11 assurent une bonne solidarisation des briques adjacentes verticalement et horizontalement.Between the bricks, horizontal rods such as 10 and vertical rods such as 11 ensure good securing of the adjacent bricks vertically and horizontally.

La dispositif des figures 3 et 4 est analogue à celui des figures 1 et 2, mais il comporte en outre une boîte métallique 12 soudée sur l'ailette de jonction par des cordons de soudure 13 au-dessus de la fenêtre et 14 au-dessous de celle-ci. Cette boîte comporte un panneau arrière 17, un panneau supérieur 16 et un panneau inférieur 18. Elle vient s'appliquer latéralement contre le pourtour des tubes 1 et 2, et constitue ainsi une cavité que l'on remplit de ciment réfractaire autour du téton d'ancrage 8 de la brique correspondante. Elle est éventuellement accrochée sur le bord inférieur de la fenêtre correspondante par une lame plate formant ressort (non représentée).The device of Figures 3 and 4 is similar to that of Figures 1 and 2, but it further comprises a metal box 12 welded to the junction fin by weld beads 13 above the window and 14 below the window. This box has a rear panel 17, an upper panel 16 and a lower panel 18. It is applied laterally against the periphery of the tubes 1 and 2, and thus constitutes a cavity which is filled with refractory cement around the nipple d anchor 8 of the corresponding brick. It is possibly hung on the lower edge of the corresponding window by a flat blade forming a spring (not shown).

Pour fabriquer le dispositif de protection selon les figures 1 et 2, après avoir soudé les ailettes verticales entre les tubes, on forme dans ces ailettes à intervalles verticaux réguliers, correspon­dant à la hauteur des briques réfractaires, des fenêtres par poinçon­nage automatique. On applique une couche de ciment réfractaire de quelques centimètres sur la surface des ailettes et des tubes, puis accroche les briques dans les fenêtres grâce à leur téton d'accrochage, après avoir muni également les faces latérales des briques se faisant vis-à-vis d'une couche de ciment réfractaire. On introduit dans les canaux verticaux et horizontaux des faces latérales, superieure et inférieure des briques les joncs de solidari­sation en matériau réfractaire 10, 11.To manufacture the protection device according to FIGS. 1 and 2, after having welded the vertical fins between the tubes, windows are formed at regular vertical intervals, corresponding to the height of the refractory bricks, windows by automatic punching. We apply a layer of refractory cement of a few centimeters on the surface of the fins and tubes, then hang the bricks in the windows thanks to their hooking stud, after having also fitted the side faces of the bricks facing each other a layer of refractory cement. The connecting rods made of refractory material 10, 11 are introduced into the vertical and horizontal channels of the lateral, upper and lower faces of the bricks.

Lorsque le dispositif de protection comprend une boîte remplie de ciment réfractaire noyant le téton d'accrochage de la brique (fig.3 et 4), on dispose la boîte 12 derrière la fenêtre, après l'avoir éventuellement accrochée sur le bord inférieur de la fenêtre correspondant grâce à une lame plate formant ressort. On soude les faces supérieure et inférieure de la boîte sur l'ailette par des cordons de soudure, on remplit de ciment réfractaire la cavité ainsi formée, puis applique la couche de ciment réfractaire sur les tubes et les ailettes. Comme précédemment, on introduit le téton d'accrochage de chaque brique réfractaire dans la fenêtre correspondante et applique cette brique sur la couche de ciment recouvrant les tubes et les ailettes. On munit également les faces latérales des briques en vis-à-vis d'une couche de ciment réfractaire, et introduit dans les canaux et verticaux des briques les joncs de solidarisation des briques adjacentes.When the protective device comprises a box filled with refractory cement drowning the nipple for hanging the brick (fig. 3 and 4), the box 12 is placed behind the window, after having possibly hung it on the lower edge of the corresponding window thanks to a flat blade forming a spring. The upper and lower sides of the box are welded to the fin with weld beads, the cavity thus formed is filled with refractory cement, then the layer of refractory cement is applied to the tubes and the fins. As before, we introduce the attachment stud of each refractory brick in the corresponding window and applies this brick to the layer of cement covering the tubes and the fins. The side faces of the bricks are also provided opposite with a layer of refractory cement, and the rods for fastening the adjacent bricks are introduced into the channels and verticals of the bricks.

Claims (6)

1/ Dispositif de protection d'écran de chaudière de récupération de chaleur, notamment pour fours d'incinération d'ordures, cet écran étant formé de tubes verticaux (1, 2) réunis par des ailettes de solidarisation soudées (3, 4, 5), disposées dans des cavités de briques réfractaires (7), et munis de moyen d'accrochage des briques réfractaires,
caractérisé en ce que l'écran comporte des fenêtres (6) percées dans les ailettes de solidarisation, en ce que les briques sont munies chacune d'au moins un téton d'accrochage (8) d'axe formant un angle avec l'horizontale et tel que chaque brique soit maintenue suspendue par son poids dans la ou les fenêtres de l'écran correspon­dant, et en ce que les intervalles subsistant entre les briques, leurs tétons d'accrochage et l'écran sont remplis d'un ciment réfrac­taire (9).1 / Screen protection device for a heat recovery boiler, in particular for refuse incineration ovens, this screen being formed from vertical tubes (1, 2) joined by welded securing fins (3, 4, 5 ), arranged in cavities of refractory bricks (7), and provided with means for hooking the refractory bricks,
characterized in that the screen has windows (6) pierced in the securing fins, in that the bricks are each provided with at least one latching pin (8) with an axis forming an angle with the horizontal and such that each brick is kept suspended by its weight in the window (s) of the corresponding screen, and in that the gaps remaining between the bricks, their attachment studs and the screen are filled with refractory cement ( 9). 2/ Dispositif selon la revendication 1, caractérisé en ce que les fenêtres de l'écran sont de forme sensiblement rectangulaire, de même que la section droite des tétons d'accrochage des briques.2 / Device according to claim 1, characterized in that the windows of the screen are of substantially rectangular shape, as well as the cross section of the lugs for hooking the bricks. 3/ Dispositif selon les revendications 1 ou 2, caractérisé en ce qu'il comporte en outre des boîtes métalliques (12) remplies de ciment réfractaire (15) et soudées sur l'écran autour de chaque fenêtre.3 / Device according to claims 1 or 2, characterized in that it further comprises metal boxes (12) filled with refractory cement (15) and welded on the screen around each window. 4/ Procédé de fabrication d'un dispositif selon la revendication 1, caractérisé en ce que l'on soude entre les tubes verticaux (1, 2) des ailettes longitudinales (3), en ce que l'on découpe dans ces ailettes des fenêtres (6) à des écartements verticaux réguliers, correspondant à la hauteur des briques réfractaires, en ce que l'on applique une couche de ciment réfractaire (9) sur la surface des tubes et des ailettes destinée à recevoir les briques réfractaires, et ce que l'on accroche dans les fenêtres chacune des briques par son téton d'accrochage.4 / A method of manufacturing a device according to claim 1, characterized in that one welds between the vertical tubes (1, 2) of the longitudinal fins (3), in that one cuts in these fins windows (6) at regular vertical spacings, corresponding to the height of the refractory bricks, in that a layer of refractory cement (9) is applied to the surface of the tubes and fins intended to receive the refractory bricks, and that we hang in the windows each of the bricks by its hooking stud. 5/ Procédé de fabrication d'un dispositif selon la revendication 3, caractérisé en ce que l'on soude entre les tubes verticaux (1, 2) des ailettes longitudinales (3), en ce que l'on découpe dans ces ailettes des fenêtres (6) à écartements verticaux réguliers, correspondant à la hauteur des briques réfractaires (7), en ce que l'on applique sur la face arrière des ailettes autour des fenêtres un boîtier (12), et soude ce boîtier sur cette face arrière, en ce que l'on remplit le boîtier de ciment réfractaire, en ce que l'on applique une couche de ciment réfractaire sur la surface des tubes et des ailettes destinée à recevoir les briques réfractaires, et en ce que l'on accroche dans les fenêtres chacune des briques par son téton d'accrochage.5 / A method of manufacturing a device according to claim 3, characterized in that one welds between the vertical tubes (1, 2) of the longitudinal fins (3), in that one cuts in these window fins (6) with regular vertical spacings, corresponding to the height of the refractory bricks (7), in that a housing (12) is applied to the rear face of the fins around the windows, and the housing is welded to this rear face, in that the casing is filled with refractory cement, in that a layer of refractory cement is applied to the surface of the tubes and fins intended to receive the refractory bricks, and in that the we hang in the windows each of the bricks by its hooking stud. 6/ Procédé selon les revendications 4 ou 5, caractérisé en ce que l'on découpe les fenêtres dans les ailettes par poinçonnage automati­que.6 / A method according to claims 4 or 5, characterized in that the windows are cut in the fins by automatic punching.
EP88121208A 1987-12-22 1988-12-19 Protection device for a boiler wall with heat recovery and method of manufacturing same Expired - Lifetime EP0321898B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88121208T ATE64450T1 (en) 1987-12-22 1988-12-19 PROTECTION DEVICE FOR A BOILER WALL WITH HEAT RECOVERY AND METHOD OF MANUFACTURE OF SUCH DEVICE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8717918A FR2624952B1 (en) 1987-12-22 1987-12-22 DEVICE FOR PROTECTING A HEAT RECOVERY BOILER SCREEN AND MANUFACTURING METHOD THEREOF
FR8717918 1987-12-22

Publications (2)

Publication Number Publication Date
EP0321898A1 true EP0321898A1 (en) 1989-06-28
EP0321898B1 EP0321898B1 (en) 1991-06-12

Family

ID=9358154

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Application Number Title Priority Date Filing Date
EP88121208A Expired - Lifetime EP0321898B1 (en) 1987-12-22 1988-12-19 Protection device for a boiler wall with heat recovery and method of manufacturing same

Country Status (9)

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US (1) US4934322A (en)
EP (1) EP0321898B1 (en)
JP (1) JPH0697081B2 (en)
AT (1) ATE64450T1 (en)
AU (1) AU607376B2 (en)
BR (1) BR8806777A (en)
DE (1) DE3863284D1 (en)
ES (1) ES2022584B3 (en)
FR (1) FR2624952B1 (en)

Cited By (2)

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Publication number Priority date Publication date Assignee Title
DE4226284A1 (en) * 1992-08-08 1994-02-10 Babcock Sonderbau Gmbh Ceramic plate covering for tube wall - has dovetail guide on ends of plates with every second plate attached to wall by bolt and thus holding other plates in place
WO1995033956A1 (en) * 1994-06-02 1995-12-14 Saint-Gobain/Norton Industrial Ceramics Corporation Novel water wall tube block design

Families Citing this family (10)

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Publication number Priority date Publication date Assignee Title
FR2611864B1 (en) * 1987-02-27 1989-05-05 Stein Industrie DEVICE FOR PROTECTING BOILER SCREENS, PARTICULARLY FOR GARBAGE INCINERATION FURNACES, AND METHOD FOR MANUFACTURING THE SAME
US5423294A (en) * 1993-12-03 1995-06-13 Wheelabrator Environmental Systems, Inc. Furnace tile and expansion joint
US5511609A (en) * 1995-01-12 1996-04-30 Tyler; John T. Tube shield with tongue and locking block assembly
FR2747338B1 (en) * 1996-04-10 1998-05-22 Pasek France PRESSING DEVICE FOR LAYING REFRACTORY PARTS
WO1998005901A1 (en) * 1996-08-07 1998-02-12 Mitsubishi Heavy Industries, Ltd. Water pipe protecting refractory structure
JP4172913B2 (en) * 1998-03-19 2008-10-29 シーメンス アクチエンゲゼルシヤフト Combustor wall segment and combustor
FR2785670B1 (en) * 1998-11-10 2001-01-05 Mediterranee Const Ind DEVICE FOR PROTECTION AGAINST CORROSION AND / OR ABRASION OF A TUBE PANEL IN PARTICULAR OF A BOILER SUPERHEATER AND METHOD OF ATTACHING PROTECTIVE SHELLS TO AT LEAST ONE WALL OF SUCH A PANEL
DE102004063813A1 (en) * 2004-12-30 2006-07-13 Saint-Gobain Industriekeramik Düsseldorf Gmbh Heat protection body for a protection system for a furnace inner wall
US8522729B2 (en) * 2008-07-18 2013-09-03 Babcock & Wilcox Power Generation Group, Inc. Contoured flat stud and stud arrangement for cyclone slag taps
WO2021226332A1 (en) * 2020-05-07 2021-11-11 Zampell Refractories, Inc. Tile assembly for a waterwall panel

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GB409827A (en) * 1932-12-22 1934-05-10 Bernitz Furnace Appliance Comp Improvements in and relating to furnace walls and blocks therefor
EP0228918A1 (en) * 1985-12-23 1987-07-15 S.A. Compagnie D'exploitation Thermique- Cometherm Process for making refractory walls of furnaces or combustion chambers, and brick therefor

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US2368265A (en) * 1940-07-27 1945-01-30 Babcock & Wilcox Co Furnace wall
DE1952140A1 (en) * 1969-10-16 1971-04-29 Steinmueller Gmbh L & C Steam generator wall elements with scaffolding devices
GB2201236B (en) * 1987-02-18 1990-10-17 W B Black & Sons Improvements in refractory lined bodies
FR2611864B1 (en) * 1987-02-27 1989-05-05 Stein Industrie DEVICE FOR PROTECTING BOILER SCREENS, PARTICULARLY FOR GARBAGE INCINERATION FURNACES, AND METHOD FOR MANUFACTURING THE SAME

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Publication number Priority date Publication date Assignee Title
GB409827A (en) * 1932-12-22 1934-05-10 Bernitz Furnace Appliance Comp Improvements in and relating to furnace walls and blocks therefor
EP0228918A1 (en) * 1985-12-23 1987-07-15 S.A. Compagnie D'exploitation Thermique- Cometherm Process for making refractory walls of furnaces or combustion chambers, and brick therefor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4226284A1 (en) * 1992-08-08 1994-02-10 Babcock Sonderbau Gmbh Ceramic plate covering for tube wall - has dovetail guide on ends of plates with every second plate attached to wall by bolt and thus holding other plates in place
WO1995033956A1 (en) * 1994-06-02 1995-12-14 Saint-Gobain/Norton Industrial Ceramics Corporation Novel water wall tube block design

Also Published As

Publication number Publication date
AU607376B2 (en) 1991-02-28
AU2737388A (en) 1989-06-22
DE3863284D1 (en) 1991-07-18
FR2624952A1 (en) 1989-06-23
US4934322A (en) 1990-06-19
ATE64450T1 (en) 1991-06-15
FR2624952B1 (en) 1990-04-06
JPH0697081B2 (en) 1994-11-30
BR8806777A (en) 1989-08-29
ES2022584B3 (en) 1991-12-01
EP0321898B1 (en) 1991-06-12
JPH01208603A (en) 1989-08-22

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