Segmental assembling method for steelmaking converter

Abstract

The invention relates to a segmental assembling method for a steelmaking converter. The method comprises the following steps: (a) respectively building a furnace shell assembling platform and an assembling rack (7); (b) welding the bottom (1) and the body (2) of the converter together on the furnace shell assembly platform; (c) placing the welded bottom (1) and body (2) of the converter in the assembling rack (7); and (d) welding the cover (3) of the converter on the body (2) of the converter. The segmental assembling method for the steelmaking converter in the invention can effectively guarantee the quality of a weld located between the body and the bottom of the converter and is beneficial for prolonging the service life of the converter.

Description

technical field [0001] The invention relates to the field of steelmaking, in particular to a segmented assembly method for a steelmaking converter. Background technique [0002] Usually, steelmaking converters (especially large steelmaking converters) are supplied in blocks and then assembled in steelworks, and due to the limitation of the load of the hoisting equipment of the furnace span of the steelmaking plant, usually adopt The method of off-line assembly is to assemble the converter outside the furnace span (such as the feeding span), and then move the assembled converter as a whole into the converter installation position in the middle of the furnace span. Large space and lifting equipment with a large load to facilitate the assembly of the converter. [0003] "Large converter main body installation method" (YJGF-33-94, Shanghai Baosteel Metallurgical Construction Company, author Tang Yan) provides a large converter main body installation method. In this installation...

AI Technical Summary

Problems solved by technology

First of all, since the converter is supplied in blocks, there will be a certain joint error when welding. When the furnace bottom is finally welded, due to the accumulation of previous joint errors, the joint error between the furnace bottom and the furnace body will be larger , and because the construction environment on the trolley is worse than that of the assembly platform for welding the furnace cap and the furnace body, the quality of the weld between the furnace bottom and the furnace body will be affected, and the joint between the furnace body and the furnace bottom The joint is just the installation and arrangement of the hanging mechanism. During the operation, the welding seam between the furnace bottom and the furnace body is stressed, so the service life of the converter is shortened.

Images