Coke oven drying process

Abstract

The invention provides a coke oven drying process. The coke oven drying process comprises the following steps: under the condition that the temperature of a coke oven is lower than 800-850 DEG C, combusting gas in a carbonizing room, and uniformly heating a coke oven masonry through heat transfer; under the condition that the temperature of the coke oven reaches 800-850 DEG C, performing heating for 10-15 days through a basement coke oven coal gas system to enable the temperature of the coke oven to slowly rise to 1000-1070 DEG C, wherein the pressure of coal gas in a basement branch pipe is controlled to be not smaller than 500Pa; after the coal gas of the basement coke oven coal gas system is switched on for 7-8min at each time, switching off the coal gas of the basement coke oven coal gas system for 60-70s; cyclically performing the switch-on step and the switch-off step in sequence. The coke oven drying process has the advantages that the operation is simple and practical; the cost input is eliminated or low; the oven drying temperature can be effectively controlled to slowly rise; the damage to an oven body caused by sudden rise and drop of the oven temperature due to interrupted heating is avoided; life prolonging of the coke oven can be promoted.

Description

technical field [0001] The invention belongs to the technical field of coke oven ovens, and in particular relates to a coke oven oven process capable of avoiding deterioration phenomena such as cracks and slit slack in coke oven masonry during the oven oven process. Background technique [0002] Usually, in order to remove a large amount of moisture in the coke oven masonry, raise the temperature of the furnace wall of the carbonization chamber to a temperature suitable for coal charging, and ensure the uniform expansion of the masonry during the heating process, the new coke oven must be baked. However, due to unreasonable temperature control during the coke oven baking process, coke oven masonry refractory bricks will crack and slit loose due to rapid temperature changes, which will seriously affect the tightness of the coke oven and the service life of the furnace body. [0003] Therefore, there is an urgent need for a method for effectively controlling the temperature of...

AI Technical Summary

Problems solved by technology

However, due to unreasonable temperature control during the coke oven baking process, coke oven masonry refractory bricks will crack and slit loose due to rapid temperature changes, which will seriously affect the tightness of the coke oven and the service life of the furnace body.