Sealing method of furnace body before primary coal charging of newly built coke furnace

Abstract

The invention relates to a sealing method of a furnace body before the primary coal charging of a newly built coke furnace. The coke furnace comprises a plurality of carbonization chambers and a plurality of combustion chambers which are separated by furnace walls. The sealing method comprises the following steps: closing the carbonization chambers; inserting air compression sealing equipment from a coal charging hole into each carbonization chamber; starting pressure measuring equipment; charging sealing materials by virtue of a charging hopper, and opening air valves to input compressed air into the carbonization chambers through the air compression sealing equipment; after materials are completely sprayed each time, closing the air valves, and standing for a period of time so that the sealing materials enter gaps among wall bricks of the furnace walls and then are thermally expanded and sintered; and checking the situation of pressure inside the coke furnace by virtue of a fire hole and a pressure gauge, and judging whether to continue to carry out air compression sealing operation or not. The sealing method disclosed by the invention can be used for sealing the brick joints of the furnace walls of the carbonization chambers in thermal engineer operation before the primary coal charging, thereby mending the leaks among the brick joints, checking the sealing property of each carbonization chamber and preventing the phenomenon of smoking of the chimney of the coke furnace from being generated during the primary coal charging.

Description

technical field [0001] The invention relates to a method for sealing a coke oven body, in particular to a method for sealing a newly built coke oven body before initial coal charging. Background technique [0002] When the new coke oven is charged with coal for the first time, due to the residual expansion of the silica bricks during the oven oven, there are small gaps between the silica bricks on the furnace wall, resulting in varying degrees of leakage in the furnace body. After the hot engineering operation of the new coke oven, it is generally directly charged with coal, without any treatment on the wall of the carbonization chamber. Although most of the expansion gaps of the furnace body are filled in the furnace roof grouting project in the hot engineering operation, it is difficult to do the grouting operation for the tiny gaps between the brick joints on the wall of the carbonization chamber. [0003] The existing technology is mainly to burn the coke oven gas for 3...

AI Technical Summary

Problems solved by technology

Although most of the expansion gaps of the furnace body are filled in the furnace top grouting project in the hot engineering operation, it is difficult to do the grouting operation for the tiny gaps between the bricks on the wall of the carbonization chamber

[0003] The existing technology is mainly to burn the coke oven gas for 3-6 months after the initial coal charging, so as to realize the formation of a protective graphite in the brick joints of the wall of the carbonization chamber and the combustion chamber, so as to achieve the purpose of keeping the furnace wall of the carbonization chamber The purpose of filling the brick joints, but it cannot prevent the leakage of the furnace body during the initial coal charging, which will cause smoke from the chimney and pollute the environment

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