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NL2036034B1 - Ceramic welding process and a robot for executing such a ceramic welding process - Google Patents

Ceramic welding process and a robot for executing such a ceramic welding process Download PDF

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Publication number
NL2036034B1
NL2036034B1 NL2036034A NL2036034A NL2036034B1 NL 2036034 B1 NL2036034 B1 NL 2036034B1 NL 2036034 A NL2036034 A NL 2036034A NL 2036034 A NL2036034 A NL 2036034A NL 2036034 B1 NL2036034 B1 NL 2036034B1
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NL
Netherlands
Prior art keywords
heating chamber
lance
coke oven
welding
door
Prior art date
Application number
NL2036034A
Other languages
Dutch (nl)
Inventor
Maurice Valere Ghislain Leheut Matthieu
Petrus Soonius Johannes
Original Assignee
Heatteq Refractories Services B V
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 Heatteq Refractories Services B V filed Critical Heatteq Refractories Services B V
Priority to NL2036034A priority Critical patent/NL2036034B1/en
Application granted granted Critical
Publication of NL2036034B1 publication Critical patent/NL2036034B1/en

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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
    • F27D1/1636—Repairing linings by projecting or spraying refractory materials on the lining
    • F27D1/1642—Repairing linings by projecting or spraying refractory materials on the lining using a gunning apparatus
    • F27D1/1647—Repairing linings by projecting or spraying refractory materials on the lining using a gunning apparatus the projected materials being partly melted, e.g. by exothermic reactions of metals (Al, Si) with oxygen
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B25/00—Doors or closures for coke ovens
    • C10B25/02—Doors; Door frames
    • C10B25/06—Doors; Door frames for ovens with horizontal chambers
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B29/00—Other details of coke ovens
    • C10B29/06—Preventing or repairing leakages of the brickwork
    • 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
    • F27D1/1636—Repairing linings by projecting or spraying refractory materials on the lining
    • F27D1/1642—Repairing linings by projecting or spraying refractory materials on the lining using a gunning apparatus
    • F27D1/1647—Repairing linings by projecting or spraying refractory materials on the lining using a gunning apparatus the projected materials being partly melted, e.g. by exothermic reactions of metals (Al, Si) with oxygen
    • F27D1/1652—Flame guniting; Use of a fuel
    • 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
    • F27D1/1636—Repairing linings by projecting or spraying refractory materials on the lining
    • F27D1/1642—Repairing linings by projecting or spraying refractory materials on the lining using a gunning apparatus
    • F27D1/1647—Repairing linings by projecting or spraying refractory materials on the lining using a gunning apparatus the projected materials being partly melted, e.g. by exothermic reactions of metals (Al, Si) with oxygen
    • F27D1/1668—Plasma guniting
    • 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
    • F27D1/18—Door frames; Doors, lids or removable covers
    • 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
    • F27D1/18—Door frames; Doors, lids or removable covers
    • F27D1/1808—Removable covers
    • 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
    • F27D1/18—Door frames; Doors, lids or removable covers
    • F27D1/1858—Doors

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)

Abstract

A ceramic welding process comprising: projecting from a lance outlet of a lance (1) a ceramic welding powder which is capable of being oxidized to form a refractory oxide against an internal heating furnace surface to form a repair 5 lining thereon, in particular on an inner wall (2) of a heating chamber (3) of a coke oven, wherein the welding process is carried out during operation of the coke oven, and wherein during operation of the coke oven said heating chamber (3) is normally closed off with doors on opposite sides of the 10 heating chamber (3), and wherein at least a first door is removed from the heating chamber (3) and replaced by a welding door (5) which substantially closes off the heating chamber (3), and is provided with a central slit (6) through which the lance (1) is projectable from outside to inside the heating 15 chamber (3).

Description

Ceramic welding process and a robot for executing such a ceramic welding process
The invention relates to a ceramic welding process comprising: projecting from a lance outlet of a lance a ceramic welding powder which is capable of being oxidized to form a refractory oxide against an internal heating furnace surface to form a repair lining thereon, in particular on an inner wall of a heating chamber of a coke oven, wherein the welding process is carried out during operation of the coke oven, and wherein during operation of the coke oven said heating chamber is normally closed off with doors on opposite sides of the heating chamber.
US 5,270,075 teaches a ceramic welding process comprising: projecting from a lance outlet a ceramic welding powder comprising a mixture of refractory particles and fuel particles composed of a fuel material which is capable of being oxidized to form a refractory oxide against a surface in at least one stream of carrier gas which, when leaving the lance outlet, contains at least sufficient oxygen for substantially complete oxidation of the fuel particles, whereby sufficient heat is released for at least surface melting of the projected refractory particles and a ceramic weld mass is formed against said surface under the heat of oxidation of the fuel particles; and projecting at least one additional stream of gas selected from the group consisting of carbon dioxide, nitrogen, and a gas containing oxygen against said surface so as to form a gas curtain which is substantially continuous and which surrounds said at least one stream of carrier gas.
US 5,270,075 discusses that ceramic welding is particularly suited to the in situ formation of a refractory mass on a refractory wall of furnaces or other refractory apparatus for the hot repair of the wall. It is preferably implemented when the wall is substantially at its normal operating temperature. It is particularly useful for repairing or reinforcing the walls or wall linings of glass melting furnaces, coke ovens, cement kilns or furnaces used in the petrochemical industry, or refractory apparatus used in ferrous or non-ferrous metal metallurgy. Moreover, the repair can sometimes be carried out during the operation of the furnace, for instance for the repair of a glass melting furnace superstructure, or during the normal operating cycle of the refractory article, for example a steel-pouring ladle can sometimes be repaired within the normal interval between teeming and recharging. The process is also useful for the formation of refractory components, for instance for the surfacing of other refractory substrates.
Although US 5,270,075 teaches that the repair or reinforcement of walls or wall linings of coke ovens can be done during operation, practice has revealed that it is not that simple as it appears from this citation. In particular the repair operation leads to considerable heat loss in the heat chamber which requires repair, and this deteriorates the quality of the coke and also the coke production rate, apart from the fact that it is environmentally unfriendly. Moreover the labor conditions of the persons that carry out the repair operation are harsh, to say the least.
It is therefore an object of the invention to improve the known ceramic welding process, to improve the labor conditions, and to promote that during repair of the wall linings of the chamber production of the coke oven is impaired in the least possible way. Further the invention is intended to improve the environmental conditions during the repair operation.
To promote the object of the invention and to gain further advantages as may become apparent from the following
- 3 = disclosure, a ceramic welding process, a welding door and a robot are proposed in accordance with one or more of the appended claims.
According to a first aspect of the invention at least one door 1s removed from the heating chamber and replaced by a welding door which substantially closes off the heating chamber, and is provided with a central slit through which the lance is projectable from outside to inside the heating chamber. This reduces the amount of heat and fumes that escape to the environment and better maintains the conditions in the heating chamber to meet production demands. Furthermore in as far as the method of the invention still requires the presence of personnel, their labor conditions are vastly improved.
In another aspect of the invention, preceding the projection of the ceramic welding powder to provide a repair lining onto the wall of the heating chamber, the lance is equipped with a camera or a laser scanning means to monitor and provide visual information of the inner wall of the heating chamber so as to identify where the repair lining is required.
This also helps to improve working conditions of the personnel working on the repair. Moreover it brings the possibility to automate the ceramic welding process and execute the repair largely without any direct involvement of personnel.
The automation of the ceramic welding process benefits in particular from the feature that the visual information of the inner wall of the heating chamber that is collected with the camera or laser scanning means, is used to steer and control the lance while it is projected from outside to the inside of the heating chamber and projects the ceramic welding powder onto the wall of the heating chamber so as to accurately provide the repair lining where it is required in the heating chamber.
The benefits of the invention may in particular be achieved with a robot that is externally mountable on a coke oven and equipped with a lance, which robot is equipped with one or more drives for moving the lance from outside to inside a coke oven chamber (and back) through a slit of a welding door which closes off the coke oven chamber, and for moving the lance up and down said slit of the welding door.
As explained above it is particularly beneficial that the robot comprises a controller for steering and controlling the one or more drives.
Further it is desirable that the lance is equipped or can be equipped with a camera or laser scan means that is or are connected to the controller.
The invention is also embodied in a welding door fittable at a machine side or coke side of a heating chamber of a coke oven to substantially close off said heating chamber, wherein the welding door is provided with a central slit for passage of a ceramic welding and/or monitoring lance.
The accompanying drawing, which 1s incorporated into and forms a part of the specification, illustrates one or more embodiments of the present invention and, together with the description, serves to explain the principles of the invention.
The drawing is only for the purpose of illustrating one or more embodiments of the invention and is not to be construed as limiting the invention.
In the drawing: -figure 1 shows a front view at a coke oven chamber as seen from a machine side (for pushing out ready coke) or the opposite coke side (where the ready coke is pushed out);
-figure 2 shows a sectional view of the coke oven chamber according to the line A-A in figure 1; figure 3 shows a sectional view of the coke oven chamber according to the line C-C in figure 1; and figure 4 shows a frontal view at the welding door of the invention.
Whenever in the figures the same reference numerals are applied, these numerals refer to the same parts.
US 5,270,075 which is incorporated herein by reference, discloses a ceramic welding process comprising: projecting from a lance outlet of a lance 1 (the lance 1 being best shown in the attached figure 2 and figure 3) a ceramic welding powder which is capable of being oxidized to form a refractory oxide against an internal heating furnace surface to form a repair lining thereon. Since this ceramic welding process is prior art and known to every skilled person for approximately 30 years, it is not necessary to extensively discuss this process herein.
Moreover the process as such is no part of the instant invention, and it is therefore also not required to provide details of the ceramic welding process as such in order to enable the skilled person to work according to the instant invention.
Figures 2 and 3 show that the lance 1 is used to repair an inner wall 2 of a heating chamber 3 of a coke oven. In order to enable that the welding process is carried out during operation of the coke oven, and in order to secure that during operation of the coke oven said heating chamber 3 is closed off with doors on opposite sides of the heating chamber 3, the normal doors are removed from the heating chamber 3 and replaced by a welding door 5 which substantially closes off the heating chamber 3, and is provided with a central slit 6 through which the lance 1 is projectable from outside to inside the heating chamber 3. In figure 2 and figure 3 the welding door 5 of the invention is provided on opposite sides of the heating chamber
3 to enable that the repair activities are carried out simultaneously on both sides of the heating chamber 3, but it is of course also possible to only remove one normal door and place a welding door on only one side of the heating chamber 3, for instance when the repair is only necessary at that one side.
It is remarked that it is within the invention desirable that prior to the projection of the ceramic welding powder to provide a repair lining onto the wall of the heating chamber, the lance is equipped with a camera or a laser scanning means to monitor and provide visual information of the inner wall of the heating chamber so as to identify where the repair lining is required. The camera or laser scanning means may for instance be provided at the extremity 1’ of the lance 1.
The visual information of the inner wall of the heating chamber 3 that is collected with the camera or laser scanning means, is preferably used to steer and control the lance 1 while it is projected from outside to the inside of the heating chamber 3 and projects the ceramic welding powder onto the wall of the heating chamber 3 so as to accurately provide the repair lining where it is required in the heating chamber 3.
With reference 7 a robot is identified that is externally mountable on a coke oven and equipped with a lance 1 as used in the invention. The robot 7 is equipped with one or more drives (not shown) for moving the lance 1 from outside to inside a coke oven chamber 3 (and back) through a slit 6 of a welding door 5 which closes off the coke oven chamber 3, and for moving the lance 1 up and down said slit 6 of the welding door 5. The inward and outward motion of the lance 1 is depicted with arrows 8 in figure 3. The up-and-down motion of the lance 1 is depicted with arrows 9 in figure 2.
It is further remarked that the robot 7 comprises a controller for steering and controlling the one or more drives.
The earlier mentioned camera or laser scan means that are mounted or mountable on the extremity 1’ of the lance 1 is or are connected to said controller.
Finally figure 4 shows a frontal view at the welding door 5 which is fittable at a machine side or coke side of a heating chamber 3 of a coke oven to substantially close off said heating chamber 3. The welding door 5 is provided with a central slit 6 for passage of a ceramic welding and/or monitoring lance 1.
Embodiments of the present invention can include every combination of features that are disclosed herein independently from each other. Although the invention has been discussed in the foregoing with reference to an exemplary embodiment of the invention, the invention is not restricted to this particular embodiment which can be varied in many ways without departing from the invention. The discussed exemplary embodiment shall therefore not be used to construe the append-ed claims strictly in accordance therewith. On the contrary the embodiment is merely intended to explain the wording of the appended claims without intent to limit the claims to this exemplary embodiment.
The scope of protection of the invention shall therefore be construed in accordance with the appended claims only, wherein a possible ambiguity in the wording of the claims shall be resolved using this exemplary embodiment.
Variations and modifications of the present invention will be obvious to those skilled in the art and it is intended to cover in the appended claims all such modifications and equivalents. The entire disclosures of all references, applications, patents, and publications cited above are hereby incorporated by reference. Unless specifically stated as being
“essential” above, none of the various components or the interrelationship thereof are essential to the operation of the invention. Rather, desirable results can be achieved by substituting various components and/or reconfiguration of their relationships with one another.
In the following section features of the invention are itemized. 1. A ceramic welding process comprising: projecting from a lance outlet of a lance (1) a ceramic welding powder which is capable of being oxidized to form a refractory oxide against an internal heating furnace surface to form a repair lining thereon, in particular on an inner wall (2) of a heating chamber (3) of a coke oven, wherein the welding process 1s carried out during operation of the coke oven, and wherein during operation of the coke oven said heating chamber {3) is normally closed off with doors on opposite sides of the heating chamber (3), characterized in that at least a first door is removed from the heating chamber (3) and replaced by a welding door (5) which substantially closes off the heating chamber (3), and is provided with a central slit (6) through which the lance {1) is projectable from outside to inside the heating chamber (3). 2. The ceramic welding process of claim 1, characterized in that preceding the projection of the ceramic welding powder to provide a repair lining onto the wall (2) of the heating chamber (3), the lance (1) is equipped with a camera or a laser scanning means to monitor and provide visual information of the inner wall (2) of the heating chamber (3) so as to identify where the repair lining is required. 3. The ceramic welding process of claim 2, characterized in that the visual information of the inner wall
- Gg - (2) of the heating chamber (3) that is collected with the camera or laser scanning means, 1s used to steer and control the lance (1) while it is projected from outside to the inside of the heating chamber (3) and projects the ceramic welding powder onto the wall (2) of the heating chamber (3) so as to accurately provide the repair lining where it is required in the heating chamber (3). 4. Robot (7) externally mountable on a coke oven and equipped with a lance (1), characterized in that the robot (7) is equipped with one or more drives for moving the lance (1) from outside to inside a heating chamber (5) through a slit (6) of a welding door (5) which closes off the coke oven heating chamber (5), and for moving the lance (1) up and down said slit (6) of the welding door (5).
5. Robot according to claim 4, characterized in that the robot comprises a controller for steering and controlling the one or more drives.
6. Robot according to claim 4 or 5, characterized in that the lance (1) is equipped or can be equipped with a camera or laser scan means that is or are connected to the controller.
7. A welding door (5) fittable at a machine side or coke side of a heating chamber (3) of a coke oven to substantially close off said heating chamber (3), characterized in that the welding door (5) is provided with a central slit (6) for passage of a ceramic welding and/or monitoring lance (6).

Claims (7)

CONCLUSIESCONCLUSIONS 1. Een keramisch lasproces omvattende: het projecte- ren van een keramisch laspoeder vanuit een lansuitlaat van een lans (1) dat kan worden geoxideerd om een vuurvast oxide te vormen tegen een inwendig verwarmingsovenoppervlak om daarop een reparatiebekleding te vormen, in het bijzonder op een bin- nenoppervlakwand (2) van een verwarmingskamer (3) van een co- kesoven, waarbij het lasproces wordt uitgevoerd tijdens be- drijf van de cokesoven, en waarbij tijdens bedrijf van de co- kesoven genoemde verwarmingskamer (3) normaliter is afgesloten met deuren aan weerszijden van de verwarmingskamer (3), met het kenmerk, dat ten minste een eerste deur uit de verwar- mingskamer (3) is verwijderd en vervangen door een lasdeur (5) die de verwarmingskamer (3) in hoofdzaak afsluit, en is voor- zien van een centrale sleuf (6) waardoorheen de lans (1) van buiten naar binnen in de verwarmingskamer (3) kan worden ge- stoken.1. A ceramic welding process comprising: projecting a ceramic welding powder from a lance outlet of a lance (1) which can be oxidised to form a refractory oxide against an internal heating furnace surface to form a repair coating thereon, in particular onto an internal surface wall (2) of a heating chamber (3) of a coke oven, the welding process being carried out during operation of the coke oven, and wherein during operation of the coke oven said heating chamber (3) is normally closed with doors on either side of the heating chamber (3), characterised in that at least a first door is removed from the heating chamber (3) and replaced by a welding door (5) substantially closing off the heating chamber (3) and is provided with a central slot (6) through which the lance (1) can be inserted from outside to inside the heating chamber (3). 2. Keramisch lasproces volgens conclusie 1, met het kenmerk, dat voorafgaand aan de projectie van het keramische laspoeder om een reparatiebekleding op de wand (2) van de ver- warmingskamer (3) te verschaffen, de lans {1) is uitgerust met een camera of een laserscanmiddel om de binnenwand (2) van de verwarmingskamer (3) te monitoren en visuele informatie te verschaffen om te identificeren waar de reparatievoering ver- eìïst is.2. Ceramic welding process according to claim 1, characterised in that prior to the projection of the ceramic welding powder to provide a repair lining onto the wall (2) of the heating chamber (3), the lance (1) is equipped with a camera or laser scanning means to monitor the inner wall (2) of the heating chamber (3) and provide visual information to identify where the repair lining is required. 3. Keramisch lasproces volgens conclusie 2, met het kenmerk, dat de visuele informatie van de binnenwand (2) van de verwarmingskamer (3), die wordt verzameld met de camera of met laserscanmiddelen, wordt gebruikt om de lans (1) te bestu- ren en regelen terwijl deze van buiten naar binnen in de ver- warmingskamer (3) wordt geprojecteerd en het keramische las- poeder op de wand (2) van de verwarmingskamer (3) projecteert om zo nauwkeurig de reparatiebekleding aan te brengen waar deze nodig is in de verwarmingskamer (3).3. Ceramic welding process according to claim 2, characterised in that the visual information of the inner wall (2) of the heating chamber (3), collected by the camera or by laser scanning means, is used to control and regulate the lance (1) as it is projected from the outside to the inside of the heating chamber (3) and projects the ceramic welding powder onto the wall (2) of the heating chamber (3) so as to precisely apply the repair coating where it is needed in the heating chamber (3). 4. Robot (7) extern monteerbaar op een cokesoven en voorzien van een lans (1), met het kenmerk, dat de robot (7) is uitgerust met één of meer aandrijvingen voor het verplaat- sen van de lans (1) van buiten naar binnen een verwarmingska- mer (5) door een sleuf (6) van een lasdeur (5) die de verwar- mingskamer (5) van de cokesoven afsluit, en voor het op en meer bewegen van de lans (1) in de sleuf (6) van de lasdeur4. Robot (7) externally mountable on a coke oven and equipped with a lance (1), characterised in that the robot (7) is equipped with one or more drives for moving the lance (1) from outside to inside a heating chamber (5) through a slot (6) of a welding door (5) closing off the heating chamber (5) of the coke oven, and for moving the lance (1) up and down in the slot (6) of the welding door. (5).(5). 5. Robot volgens conclusie 4, met het kenmerk, dat de robot een controller omvat voor het aansturen en regelen van de één of meer aandrijvingen.5. Robot according to claim 4, characterised in that the robot comprises a controller for controlling and regulating the one or more drives. 6. Robot volgens conclusie 4 of 5, met het kenmerk, dat de lans (1) is uitgerust of kan worden uitgerust met een camera of laserscanmiddel die is of zijn verbonden met de con- troller.6. Robot according to claim 4 or 5, characterised in that the lance (1) is equipped or can be equipped with a camera or laser scanning means which is or are connected to the controller. 7. Aan een machinezijde of cokeszijde van een verwar- mingskamer (3) van een cokesoven aanbrengbare lasdeur (5) voor het in hoofdzaak afsluiten van die verwarmingskamer (3), met het kenmerk, dat de lasdeur (5) is voorzien van een centrale sleuf (6) voor de doorgang van een keramische las- en/of moni- torlans (6).7. Welding door (5) to be fitted on a machine side or coke side of a heating chamber (3) of a coke oven for substantially closing off said heating chamber (3), characterised in that the welding door (5) is provided with a central slot (6) for the passage of a ceramic welding and/or monitoring lance (6).
NL2036034A 2023-10-13 2023-10-13 Ceramic welding process and a robot for executing such a ceramic welding process NL2036034B1 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5270075A (en) 1989-10-05 1993-12-14 Glaverbel Ceramic welding process
WO1995011950A1 (en) * 1993-10-29 1995-05-04 Sumitomo Heavy Industries, Ltd. Method and apparatus for repairing a coke oven
JP2889166B2 (en) * 1995-11-06 1999-05-10 川崎製鉄株式会社 Furnace wall repair equipment for coke ovens
JPH11152476A (en) * 1997-11-22 1999-06-08 Sumitomo Heavy Ind Ltd Furnace lid for coke oven repair

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5270075A (en) 1989-10-05 1993-12-14 Glaverbel Ceramic welding process
WO1995011950A1 (en) * 1993-10-29 1995-05-04 Sumitomo Heavy Industries, Ltd. Method and apparatus for repairing a coke oven
JP2889166B2 (en) * 1995-11-06 1999-05-10 川崎製鉄株式会社 Furnace wall repair equipment for coke ovens
JPH11152476A (en) * 1997-11-22 1999-06-08 Sumitomo Heavy Ind Ltd Furnace lid for coke oven repair

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
"ROBOTIC REPAIR OF HOT REFRACTORY LININGS", STEEL TIMES, FUEL & METALLURGICAL JOURNALS LTD. LONDON, GB, vol. 217, no. 8, 1 August 1989 (1989-08-01), pages 441, 447, XP000069639, ISSN: 0039-095X *
TATSUAKI MATADA ET AL: "HOT REPAIR ROBOT FOR IN-OPERATION COKE OVENS", CONFERENCE RECORD OF THE INDUSTRY APPLICATIONS SOCIETY ANNUAL MEETING (IAS). PITTSBURGH, OCT. 2 - 7, 1988; [CONFERENCE RECORD OF THE INDUSTRY APPLICATIONS SOCIETY ANNUAL MEETING (IAS)], NEW YORK, IEEE, US, vol. PART 02, 2 October 1988 (1988-10-02), pages 1157 - 1161, XP000079304 *

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