Fixed type steelmaking converter shell replacement method

Abstract

The invention discloses a fixed type steelmaking converter shell replacement method, and belongs to the technical field of metallurgical machinery maintenance. The problems that an existing fixed typesteelmaking converter shell is replaced due to burning loss in the later period, the number of devices on the upper portion of the converter shell is large, the weight is large, the hoisting difficulty is increased, and hoisting device cannot meet the hoisting condition can be effectively solved. The method comprises the following steps that an auxiliary hoisting device and a hoisting device arearranged firstly, then the positions of a converter body and a backing ring are positioned, then converter body components are dismounted, hoisting points arranged on the converter shell are used, hoisting replacement of the converter shell is carried out under cooperation of the auxiliary hoisting device and the hoisting device, finally, the dismounted converter body components are mounted again,and replacement of the fixed type steelmaking converter shell can be completed. The method has the beneficial effects that the above technology is adopted for converter shell replacement, a special hoisting beam does not need to be manufactured, the manufacturing cost is saved, the technology is simple, operability is high, the replacement construction period of the fixed type converter shell canbe obviously shortened, and the replacement cost input is reduced.

Description

technical field [0001] The invention belongs to the technical field of metallurgical machinery maintenance, and in particular relates to a method for replacing a stationary steelmaking converter shell. Background technique [0002] The steelmaking converter shell is the main equipment of the converter system. It is mainly divided into replaceable furnace shell and fixed furnace shell. For the replaceable furnace shell, the replacement and maintenance of the furnace shell has been considered from the early stage of design. If the damage needs to be replaced, the furnace shell can be quickly replaced through the staff and the technical manual, and the time is relatively short. Usually, the furnace shell can be replaced within 10 hours. However, for the fixed converter shell, the design does not consider the replacement requirements. Therefore, once the furnace shell is accidentally burned, it is difficult to replace the furnace shell only by the staff, which is difficult and i...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for replacing the shell of a fixed steelmaking converter, which can effectively solve the problem of the difficulty in hoisting due to burning damage in the later stage of the existing fixed steelmaking converter shell, and the fact that there are many upper parts of the furnace shell and the weight is relatively large. , The hoisting equipment cannot meet the hoisting conditions, and achieve the purpose of safe, fast and efficient replacement of the furnace shell

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