Coke oven maintenance method

Abstract

The invention provides a coke oven maintenance method which comprises steps as follows: the temperature of a to-be-maintained combustion chamber of a coke oven is reduced to a range of a first preset temperature, and the temperature of a combustion chamber adjacent to the to-be-maintained combustion chamber is reduced to a range of a second preset temperature; after an oven roof and an oven door of the to-be-maintained combustion chamber are dismounted, to-be-maintained brickworks of the to-be-maintained combustion chamber are dismounted; when the to-be-maintained combustion chamber is maintained, the adjacent combustion chamber is subjected to temperature rise control, and the temperature of the adjacent combustion chamber is increased to a range of a third preset temperature after maintenance of the to-be-maintained combustion chamber are finished; and preset gaps are formed between adjacent brickworks after maintenance ends. With the adoption of the technical scheme, the problem of secondary damage of an oven wall due to the fact that the brickwork temperature and the sizes of the preset gaps in the joint positions of new and old brickworks cannot be controlled effectively is solved, so that the size of the maintained combustion chamber is standard, the brickworks are neat, the loss and the cost are reduced, and the yield of the coke oven is increased.

Description

technical field [0001] The invention relates to the technical field of coke oven maintenance, in particular to a coke oven maintenance method. Background technique [0002] Coke oven, that is, large-scale equipment for coke production. The general service life is about 20-30 years. Due to the long-term high-temperature state of the coke oven carbonization chamber and combustion chamber walls and the wear and tear of construction operations, the walls will gradually crack, leak, and collapse. The traditional maintenance method in China is cold repair, that is, after the coke oven is shut down to cool down, it will be knocked down and rebuilt as a whole. This kind of maintenance method not only affects the production of the enterprise, but also causes the enterprise to consume a large amount of construction funds and cause unnecessary losses. And it takes a long time to maintain, the efficiency is low, the cost is high, and the consumption is large. [0003] At present, al...

AI Technical Summary

Problems solved by technology

[0004] Based on the above problems, the present invention proposes a new technical solution, which can solve the problem of secondary damage to the furnace wall caused by the inability to effectively control the temperature of the masonry and the size of the reserved seam at the joint between the old and new masonry. After laying, the size of the combustion chamber is standard, and the masonry is flat, which reduces losses, reduces costs, increases the output of the coke oven, and prolongs the service life of the coke oven

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