Deep Maintenance Method of Coke Oven Carbon Bottom Brick

Abstract

The invention relates to a deep maintenance method for coke oven carbon bottom bricks. The method includes the following steps: 1) furnace temperature control, 2) heat insulation at 850°C, 3) interval roof protection; 4) safety protection technology for construction personnel in a limited space , 5) Quality control of carbon bottom brick masonry, 6) Thermal insulation and gap treatment technology of silica bricks at the furnace head, masonry and grouting at the furnace head on both sides of the carbonization chamber machine and coke; 7) Buffer protection of full carbon bottom bricks technology, maintenance and temperature rise control after construction; 8) buffer protection control for the first production operation after construction. This method solves the problem that operators cannot safely enter the narrow, high-temperature space, and uses zero-expansion silica bricks to replace the original silica bricks to solve the problem that ordinary silica bricks are prone to bursting at high temperatures; at the same time, it can avoid large fluctuations in furnace temperature and ensure The quality of bricklaying prolongs the life of the coke oven body, the speed of masonry is fast, the maintenance time is greatly shortened, the labor intensity is reduced, and the safety of construction workers is ensured.

Description

technical field [0001] The invention relates to a maintenance method for coke oven carbon bottom bricks, in particular to a method for repairing carbon bottom bricks at temperatures above 850°C. [0002] In this state, operators enter the center of the coke oven carbonization chamber for deep maintenance of coke oven carbon bottom bricks. Background technique [0003] The whole row of carbon bottom bricks in the carbonization chamber of the Meishan Iron and Steel Coking Oven was severely damaged. The production of the chamber is shut down, and it seriously affects the production capacity of the adjacent carbonization chamber. The quality of maintenance construction is directly related to whether the follow-up production can be carried out stably, related to the service life of the carbonization chamber and adjacent carbonization chambers, and may even cause the carbonization chamber to fail to produce. The carbon bottom bricks of most coke ovens in China are partially dama...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a construction technique for building a whole row of carbon bottom bricks with zero-expansion silica bricks when workers enter the carbonization chamber at a temperature above 850°C, mainly to solve the traditional repair technology for the damage of the whole row of carbon bottom bricks in the carbonization chamber intractable problem

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