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Repair method and repair device for wall surface of coke oven chamber at bottom edge thereof

A technology for carbonization chambers and coke ovens, which is applied to coke ovens, furnaces, furnace components, etc., and can solve the problem of not being able to repair the entire area of ​​the damaged part 115 of the bottom edge of the furnace, and achieve the effect of preventing damage

Active Publication Date: 2011-08-31
NIPPON STEEL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0021] In the case of wanting to repair the damaged portion 115 of the furnace bottom wall surface using the above-mentioned conventional repairing device, due to the scanning direction 113 of the melting spray device 107 (refer to Figure 2A ) is not parallel to the furnace bottom 104, so at one end of the repaired area, the entire area of ​​the furnace bottom edge damaged part 115 cannot be repaired due to the distance between the furnace wall shape measuring device 106 or the melting spray device 107 and the furnace bottom 104. At the other end, there is a risk of contact between the furnace wall shape measuring device 106 or the melting device 107 and the furnace bottom 104 due to being too close

Method used

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  • Repair method and repair device for wall surface of coke oven chamber at bottom edge thereof
  • Repair method and repair device for wall surface of coke oven chamber at bottom edge thereof
  • Repair method and repair device for wall surface of coke oven chamber at bottom edge thereof

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no. 1 Embodiment approach

[0150] exist image 3 The figure shows the 1st embodiment which repairs the damaged part of a furnace bottom side wall surface using the repairing apparatus of this invention. The repair control device 5 is provided at the front end, and the elongated beam 9 capable of advancing and retreating along the furnace length direction 10 a is freely supported by elevating rollers 19 arranged on a trolley 17 on the rail 3 .

[0151] At the front end of the repair control device 5, a furnace length direction precision drive device 10 is connected to drive a furnace height direction precision drive device 11 along the furnace length direction 10a. The furnace height direction precision drive device 11 drives a furnace wall along the furnace height direction 11a. The shape measuring device 6 , the furnace bottom shape measuring device 18 , and the repair robot 11z of the spraying device 7 . The precision driving device 10 in the furnace length direction and the precision driving device ...

no. 2 Embodiment approach

[0171] exist Figure 11A ~ Figure 12 In FIG. 2 , the second embodiment of the present invention using two elongated devices mounted on one trolley 17 is shown.

[0172] The first elongated device includes: a first elongated beam 20 inserted into the carbonization chamber 1 of the coke oven; a furnace bottom shape measuring device 18 provided at the front end of the first elongated beam 20 via a first furnace longitudinal precision drive device 10 , by measuring the distance between the furnace bottom 4 and itself to obtain the concave-convex shape of the furnace bottom 4; the first furnace length direction precision driving device 10 adjusts the furnace length of the furnace bottom shape measuring device 18 in the coking oven carbonization chamber 1 The position in the direction; the first inclination angle sensor 22 measures the angle formed by the driving direction of the first furnace length precision driving device 10 and the horizontal direction.

[0173] On the other ha...

no. 3 Embodiment approach

[0185] exist Figure 13In , the state of posture control of the repairing device in the case where the leg of the repairing device of the present invention does not land on the furnace bottom is shown. Independently control the height position of the first lifting roller 26 that can be lifted and the height position of the second lifting roller 27 that can be lifted and lowered independently, and carry out the positioning of the repair control device 5, so that the scanning direction of the furnace length direction precision drive device 10 is in line with the The approximate curves of the bottom of the furnace are parallel. At this time, positioning is performed so that the center of gravity 28 of the repairing device is located between the first elevating driving roller 26 and the second elevating driving roller 27 .

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Abstract

A repair method for the wall surface of a coke oven chamber at the bottom edge thereof is a method for repairing a damaged part on the wall surface of the coke oven chamber close to the bottom thereof, and comprises an oven bottom profile measuring step for determining a oven bottom approximation curve which approximates the oven bottom by measuring the distance between an oven bottom profile measuring device and the oven bottom in the vertical direction while moving the oven bottom profile measuring device along the length of the oven in the coke oven chamber to thereby determine the irregular shape of the oven bottom, an oven wall profile measuring step for determining the irregular shape of the oven wall while moving an oven wall profile measuring device in parallel with the oven bottom approximation curve so that the shortest distance between the shell of the oven wall profile measuring device and the oven bottom approximation curve is at least a first predetermined distance, and a repair step for spraying a repair material from thermal spraying equipment to the damaged part while moving the thermal spraying equipment in parallel with the oven bottom approximation curve so that the shortest distance between the shell of the thermal spraying equipment and the oven bottom approximation curve is at least a second predetermined distance.

Description

technical field [0001] The present invention relates to a method and a device for repairing the bottom side wall of a coke oven carbonization chamber, in particular, to a method and a device for repairing a damaged part of the furnace wall close to the furnace bottom with heat from the side of the carbonization chamber. A wall separates the coking chamber and the combustion chamber of the coke oven. Background technique [0002] A coke oven is a device that puts coal in the carbonization chamber, heats it from the combustion chamber, and carbonizes the coal. The furnace wall separating the combustion chamber and the carbonization chamber is made of silica bricks, with a thickness of about 100mm, a height of 4-7m, and a depth of about 15m. In terms of the structure of the coke oven, the extrusion force and the coke's own weight when extruding the coke become side pressure and are carried on the wall surface on the side of the carbonization chamber, and the wall surface is ea...

Claims

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Application Information

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IPC IPC(8): C10B29/06
CPCF27D1/1642C10B29/06C10B45/00
Inventor 小林信太郎中岛淳阿波靖彦
Owner NIPPON STEEL CORP
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