Synchronous cutting-off and unroofing repair method for coke side oven head of large-scale coke oven machine

Abstract

The invention relates to a synchronous cutting-off and unroofing repair method for a coke side oven head of a large-scale coke oven machine, which belongs to a coke oven and particularly relates to a repair method for the coke oven. The synchronous cutting-off and unroofing repair method comprises the following steps of: cooling a repair area-reinforcing an oven column, correspondingly arranging a banking number and a buffer oven number, building a retaining wall, disassembling an ascending tube and cooling a repair number and relevant oven numbers; disassembling the ovens-disassembling a masonry body, installing a support and carrying out temperature monitoring on the repair number and the relevant oven numbers; repairing the building-determining a building centerline and a wall surface datum line and building according to the key points; and warming after repair-carrying out temperature rise speed control and disassembling the support and digging up the retaining wall. The repair method has the advantages that all the damaged parts of the oven head are disassembled and newly built; the wall surfaces of damaged coking chambers can be repaired within a large area so as to completely solve the abrasion and the hole through on the wall surfaces of the coking chambers and the inter-leakage of partition walls of a combustion chamber; after one-time repair, the damaged parts can be used for 5-8 years, so that the oven repair frequency, the time and the material consumption are reduced; the wall surfaces of the repaired parts are level, are small in coke pushing resistance, are beneficial to protecting a coke pusher and an oven body and producing the coke oven and also facilitates energy conservation and consumption reduction; and the high-temperature burn accident of maintenance personnel is also avoided.

Description

technical field [0001] The invention belongs to coke ovens, in particular to a maintenance method for coke ovens. Background technique [0002] The main part of the coke oven body is made of silicon and other refractory materials. During long-term use, it is subjected to high temperature, mechanical force, physical and chemical reactions, etc. The furnace body is gradually aging, and the partition wall bricks in the combustion chamber are damaged and carbonized. There are through holes in the wall of the coke chamber, and the wall bricks on the machine and coke side are broken and corroded; there is serious leakage at the furnace head on the machine coke side, the temperature of the furnace head is low, and the resistance of pushing coke is generally increased, which is easy to damage the furnace body and pushing focus equipment. It directly affects the long-term stable production, energy saving and consumption reduction of the coke oven. [0003] When there is a hole in t...

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Problems solved by technology

[0016] Its disadvantages are: first, it can only repair the damage or damage of silicon bricks in the local carbonization chamber of the furnace head in a small area, and cannot completely solve the problem of repairing large-scale damage in the carbonization chamber, and cannot solve the problem of leakage of the combustion chamber partition wall; The fundamental problem of the coke oven with serious surface damage can only be repaired in a short period of time, so that the coke oven can barely maintain production. After a certain production cycle, the wall will be damaged again; the third is that the quality of repairs cannot be guaranteed. The wall surface treated by the prior art is uneven, easy to build up graphite, increases the coke pushing resistance, and damages the furnace body and coke pushing equipment; Fourth, the service life of the furnace body is short, the furnace is frequently repaired, a lot of materials are consumed, and the furnace repair cost is high. It takes a long time, which seriously affects coking production; fifth, the operating environment is harsh, and the temperature in the repair area is high, which is prone to high-temperature burn accidents

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