Process for heat maintaining whole walls of coke carbonating chamber

Abstract

The invention relates to a new technology for thermal maintenance of the entire wall of a coke oven carbonization chamber, which comprises the following steps: during maintenance, the adjacent furnace walls of the coke oven carbonization chamber are kept warm, the adjacent furnace walls are supported, and the carbonization chamber Thermal maintenance of the whole wall and partial replacement of the ramp, and pressure management of the masonry at the maintenance site. The method of the present invention has the least damage to the adjacent wall. After the furnace wall is heated up, the newly built wall surface is required to be flat without bulging or depression. The taper and height control meet the original design and construction requirements. After the furnace wall is heated up, the bricks of the furnace wall will not burst and peel off.

Description

technical field [0001] The invention relates to a coke oven maintenance technology, in particular to a coke oven carbonization room thermal maintenance technology for the whole wall. Background technique [0002] The coking oven is a large-scale industrial kiln that is continuously produced at high temperature for a long time. Compared with other industrial furnaces, it has a complex structure, a large amount of bricks, a long furnace life, and a large construction investment. Since the main body is a silica brick structure, production cannot be stopped for major or medium repair under normal circumstances. [0003] The 1# and 2# coke ovens of JISCO Coking Plant were put into operation in 1970 and 1973 respectively. With the continuous increase of the coke oven age, the 1# and 2# coke ovens are aging year by year. Part of the iron parts protecting the furnace were seriously deformed, and the protective pressure on the furnace body appeared to be insufficient. The leaking of...

AI Technical Summary

Problems solved by technology

It is manifested in serious leakage of coke oven body, high heat consumption of gas, uneven furnace temperature, unstable coke quality, and large chimneys often emit black smoke after loading coal

[0004] At present, the maintenance of coke ovens in China adopts heat preservation before dismantling, which is lowered from 1000 ℃ to normal temperature for cold repair, and no heat preservation is used during the masonry process. After repairing, the temperature is raised to above 1000 ℃ by normal temperature oven; and only during the dismantling process The supporter is installed, but no supporter or support wall is installed during the masonry and heating process, so that the longitudinal expansion of the furnace body is not protected