JP2006152136A - Method for re-erecting brick wall in combustion chamber of coke oven - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for re-erecting a brick wall in a combustion chamber of a coke oven at an end part in a longitudinal direction of the oven at once. <P>SOLUTION: In this method, a cylindrical partition wall 5 which is supported by a brick wall 6 and positioned at the end part in the longitudinal direction of the oven is supported, by connecting the cylindrical partition wall 5 to an oven body iron skin 8 by a connecting member 10, when the brick wall 6 is disassembled, and then the brick wall 6 is re-erected. Connection by the connecting member 10 is conducted so that a shaft 11 on a partition wall side of the connecting member 10 is inserted into a blowout hole 7 of the cylindrical partition wall 5 and fastened thereto, and simultaneously a shaft 12 on an iron skin side is subjected to simplified welding onto the oven body iron skin 8. Further, the connecting member 10 is removed, after the cylindrical partition wall 5 is supported by the brick wall 6 which is completed in re-erection. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a brick wall transshipment method for a coke oven combustion chamber, in which the brick wall at the end in the furnace length direction in the coke oven combustion chamber is transshipped.

When cracks occur in the flue bottom and gas burner nozzle base in the combustion chamber, it is proposed to dismantle part of the brick wall from the carbonization chamber and repair the flue bottom and gas burner nozzle base via the disassembled opening. (See Patent Document 1).
In addition, when suspending bricks at the top of the flue and repairing the bricks below it, the beam for suspending the bricks at the top of the flue via the lifting tool should be below the furnace top surface so that it does not interfere with the coal car. There is one proposed to arrange (see Patent Document 2).
Japanese Patent Laid-Open No. 61-60783 Japanese Utility Model Publication No. 61-26342

As described in Patent Documents 1 and 2 above, it is necessary to appropriately repair the brick wall of the combustion chamber. Especially, the brick wall at the end in the furnace length direction is close to the kiln entrance, and heat at the time of leaving the kiln Since the fluctuation is large and easily deteriorated, it may be necessary to transship only the brick wall at the end in the furnace length direction.
As shown in FIG. 4, the combustion chamber has air and fuel gas vertical tunnels alternately arranged in the furnace length direction, and a horizontal tunnel connected to the upper end of each vertical tunnel. The cylindrical partition that is formed and forms a vertical tunnel is supported by brick walls on both sides in the furnace group direction. Therefore, in order to transfer the brick wall at the end of the furnace length direction while leaving the cylindrical partition wall at the end of the furnace length direction, if the brick walls on both sides are disassembled at once, the cylindrical partition wall may collapse. There is no choice but to transship two times one by one. That is, while the cylindrical wall is supported by one brick wall, the other brick wall is transshipped, the coke oven is restarted, and after a while, the cylindrical wall is supported by the other brick wall. Since the brick wall must be transloaded, there is a problem that not only the construction period becomes longer, but also the furnace body is deteriorated by repeating the temperature decrease and the temperature increase twice.

  Therefore, the present invention has been made paying attention to the above problems, and provides a method of brick transshipment in a coke oven combustion chamber that can transship the brick wall at the end in the furnace length direction in the coke oven combustion chamber at a time. It is an issue.

  In order to solve the above-mentioned problem, a brick transshipment method for a coke oven combustion chamber according to claim 1 of the present invention is such that a brick wall at the end of the coke oven combustion chamber in the length direction of the coke oven is transshipped. In the method, when disassembling the brick wall, the tubular partition wall of the furnace length direction end that is supported by the brick wall and forms a vertical tunnel is connected to the furnace body iron shell via a connecting member. A cylindrical partition wall is supported, and the brick wall is transloaded.

Moreover, the brick transshipment method of the coke oven combustion chamber according to claim 2 of the present invention is the brick transshipment method of the coke oven combustion chamber according to claim 1, wherein one end of the connecting member is formed in the cylindrical partition wall. Alternatively, the tubular bulkhead and the furnace core are connected by being inserted into and fixed to the fuel gas blowing hole and the other end fixed to the furnace core.
Moreover, the brick transshipment method of the coke oven combustion chamber according to claim 3 of the present invention is the brick transshipment method of the coke oven combustion chamber according to claim 1 or 2, wherein the cylindrical partition wall and the furnace body iron skin are It connects via the said connecting member arranged in multiple numbers by the up-down direction, It is characterized by the above-mentioned.

  Moreover, the brick transshipment method of the coke oven combustion chamber which concerns on Claim 4 of this invention is the brick transshipment method of the coke oven combustion chamber which concerns on any one of Claims 1-3. The connecting member is removed after the cylindrical partition wall is supported.

According to the brick transshipment method of the coke oven combustion chamber according to claim 1 of the present invention, when dismantling the brick wall, the cylindrical partition wall at the end in the furnace length direction, which is supported by the brick wall and forms a vertical tunnel, and the furnace Since the cylindrical partition wall is supported by connecting the body iron shell via the connecting member, the brick walls on both sides at the end in the furnace length direction can be transshipped at a time.
Further, according to the method for transshipment of bricks in the coke oven combustion chamber according to claim 2, one end of the connecting member is inserted and fixed into the existing air or fuel gas blowing hole formed in the cylindrical partition wall, and the other end is fixed to the furnace. By fixing to a body iron skin, a cylindrical partition can be supported easily and firmly.

Moreover, according to the brick transshipment method of the coke oven combustion chamber according to claim 3 of the present invention, by connecting the cylindrical partition wall and the furnace body iron shell via a plurality of connecting members arranged in the vertical direction, The cylindrical partition wall can be supported more firmly and can be prevented from falling down.
Moreover, according to the brick transshipment method of the coke oven combustion chamber according to claim 4 of the present invention, the operation of the coke oven is resumed by removing the connecting member after supporting the cylindrical partition wall by the brick wall after transshipment is completed. When it does, it does not prevent the blowing of air or fuel gas from the blowing hole.

Hereinafter, the best mode for carrying out the present invention will be described with reference to the drawings.
FIG. 1 is a schematic configuration diagram of a furnace length direction end portion in a coke oven combustion chamber. In the combustion chamber 1, fuel gas vertical tunnels 2 and air vertical tunnels 3, which are alternately arranged in the furnace length direction, and a horizontal tunnel 4 connected to the upper ends of the vertical tunnels 2 and 3. The cylindrical partition walls 5 that form the vertical tunnels 2 and 3 are supported by brick walls 6 on both sides in the furnace group direction. The cylindrical partition wall 5 is formed with a blow hole 7 that is inclined slightly upward from the vertical airway 3 for the air to the vertical airway 2 for the fuel gas. The brick wall 6 is pressed in the furnace length direction by a backstay 9 through the furnace body skin 8.

  Since the brick wall 6 at the end in the furnace length direction in the combustion chamber 1 is close to the kiln opening, the thermal fluctuation at the start of the kiln is likely to be greatly deteriorated. Therefore, as shown in FIG. In some cases, it may be necessary to transship only the brick wall 6 while leaving 5. As described above, since the cylindrical partition walls 5 are supported by the brick walls 6 on both sides in the furnace group direction, if the brick walls 6 on both sides at the end in the furnace length direction are dismantled at a time while leaving the cylindrical partition walls 5, The cylindrical partition wall 5 may fall down.

  Therefore, in the present embodiment, when the brick wall 6 is disassembled, the tubular partition wall 5 at the end in the furnace length direction supported by the brick wall 6 and the furnace body iron skin 8 are connected via the connecting member 10. By supporting the cylindrical partition wall 5, the brick wall 6 is then transshipped. Thereby, since the fall of the cylindrical partition wall 5 can be prevented, the brick walls 6 on both sides of the end portion in the furnace length direction can be transshipped at a time.

  As shown in FIG. 3, the connecting member 10 has one end side penetrating the cylindrical partition wall 5 through the blowing hole 7 and can be fixed to the blowing hole 7 by bending along the inclination of the blowing hole 7. The shaft 11 is screwed to the other end side of both the partition side shaft 11 and the core side shaft 12, and the other side of the core side shaft 12 supported by fixing means such as simple welding to the furnace body core 8. And a turnbuckle 13 that connects the two. One of the partition wall side shaft 11 and the iron skin side shaft 12 is configured to be screwed with the turnbuckle 13 by a reverse screw, and the partition wall side shaft 11 and the iron skin side shaft 12 are rotated by the turnbuckle 13. The distance can be adjusted.

  Therefore, the brick wall 6 starts to be dismantled from the side facing the furnace body skin 8, and when the furnace body skin 8 appears, the partition-side shaft 11 of the connecting member 10 is inserted and fixed into the blowout hole 7 of the cylindrical partition wall 5. At the same time, the cylindrical partition wall 5 is easily and firmly secured by holding the cylindrical partition wall 5 on the partition wall side shaft 11 by simply welding the iron core shaft 12 to the furnace shell 8 and adjusting the distance by the turnbuckle 13. Can be supported.

In addition, as shown in FIG. 2, the cylindrical partition wall 5 and the furnace core 8 are connected by a plurality of connecting members 10 arranged in the vertical direction, thereby supporting the cylindrical partition wall 5 more firmly and falling down. Can be reliably prevented.
Moreover, since the cylindrical partition wall 5 is supported by the connecting member 10 over the entire period of transshipment by removing the connecting member 10 after supporting the cylindrical partition wall 5 by the brick wall 6 that has been transshipped, Since the cylindrical partition wall 5 is not damaged and the connecting member 10 to be used can be removed, the restart of the operation of the coke oven does not hinder the blowing of air or fuel gas from the blowing hole 7.

It is a schematic block diagram of the furnace length direction end part of a coke oven combustion chamber. It is a schematic block diagram of this invention. It is an enlarged view of a connection member. It is a schematic block diagram of the furnace length direction end part of a coke oven combustion chamber.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Combustion chamber 2 Air vertical path 3 Fuel gas vertical path 4 Horizontal path 5 Cylindrical bulkhead 6 Brick wall 7 Blowout hole 8 Furnace iron shell 9 Backstay 10 Connecting member 11 Bulkhead side shaft 12 Iron core side shaft 13 Turnbuckle

Claims (4)

In the method of transposing the brick wall in the coke oven combustion chamber, transposing the brick wall at the end in the furnace length direction in the coke oven combustion chamber,
When disassembling the brick wall, the tubular partition wall is supported by the brick wall and forms a vertical tunnel at the end in the furnace length direction, and the furnace core is connected to the tubular partition wall via a connecting member. A brick transshipment method for a coke oven combustion chamber, wherein the brick wall is transloaded.   One end of the connecting member is inserted and fixed into an air or fuel gas blowout hole formed in the cylindrical partition wall, and the other end is fixed to the furnace body iron skin, thereby the cylindrical partition wall and the furnace body iron. The brick re-loading method of a coke oven combustion chamber according to claim 1, wherein the leather is connected to the leather.   The brick refilling method for a coke oven combustion chamber according to claim 1 or 2, wherein the cylindrical partition wall and the furnace body iron shell are connected via a plurality of connecting members arranged in the vertical direction.   The method of brick transshipment in a coke oven combustion chamber according to any one of claims 1 to 3, wherein the connecting member is removed after the cylindrical partition wall is supported by the brick wall that has been transshipped.

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