Converter bottom structure with multi-point rider brick deploying and controlling and building method of converter bottom structure

Abstract

The invention provides a converter bottom structure with multi-point rider brick deploying and controlling and a building method of the converter bottom structure. The converter bottom structure comprises a converter bottom shell. A permanent magnesite brick layer is built in the converter bottom shell, converter bottom part work layers are symmetrically built in a cross, and then magnesia carbon bricks are adopted to flatly build pressing edge part work layers round the outer edges of the converter bottom part work layers. When the pressing edge part work layers are built, four endpoint positions corresponding to the cross axes of the converter bottom part work layers respectively adopt magnesia carbon rider bricks to build main rider brick areas. The inner parts of the pressing edge part work layers between every two main rider brick areas respectively adopt the magnesia carbon rider bricks to build at least one auxiliary rider brick area. One side of each magnesia carbon rider brick is an inclined plane, and the inclined plane is in tight contact with the outer surface of each magnesia carbon brick of the outermost ring of the converter bottom part work layers in the building process. The converter bottom structure with multi-point rider brick deploying and controlling combines the advantages of cross building, also overcomes the disadvantages of the cross building, and has a wide popularization and application value.

Description

Technical field [0001] The invention belongs to the field of iron and steel metallurgy, and in particular relates to a converter bottom structure with multi-point distribution control and lock bricks and a masonry method thereof. Background technique [0002] The top-bottom composite oxygen converting converter steelmaking method is a new steelmaking process that appeared in the middle and late 1970s, and it is the basic steelmaking operation process of most steel complexes in my country. [0003] The lining structure of the converter is composed of refractory materials and is divided into a permanent layer and a working layer. Among them, the permanent layer lining bricks are mostly fired magnesia bricks, which have good physical and chemical properties and impact resistance, and have good heat insulation. The lining bricks of the working layer are mostly magnesia-carbon bricks, which can withstand high temperature and severe temperature fluctuations, have good resistance to chem...

AI Technical Summary

Problems solved by technology

[0006] According to the defects of the prior art, the present invention develops a converter bottom structure with multi-point distribution and control lock bricks and its masonry method, aiming at the structure of the furnace bottom cross masonry. This structure solves the problem of poor mechanical stability of the furnace bottom. , the bottom of the furnace is prone to loose problems

Images