Special-shaped steel pipe, iron-making blast furnace cooling wall, butt-fitting tool and butt-fitting method of special-shaped steel pipe

Abstract

The invention relates to a special-shaped steel pipe, an iron-making blast furnace cooling wall, butt-fitting tool and a butt-fitting method of a special-shaped steel pipe. the butt-fitting tool comprises a bottom plate, the two ends of the upper surface of the bottom plate are provided with a head-end butt-fitting device used for mounting a plurality of head ends of special-shaped steel tubes anda tail-end butt-fitting device used for mounting a plurality of tail ends of special-shaped steel tubes, the tail end butt-fitting device is fixedly connected with the bottom plate, and the head-endbutt-fitting device is movably connected with the bottom plate. According to the butt-fitting tool and the mounting method, the butt-fitting tool structure is reasonably designed, the size of the butt-fitting tool is controlled, the butt-fitting tool manufacturing process is formulated, and the butt-fitting tool is reasonably used, so that the size (interval, radian and taper) of the special-shaped steel pipe can meet drawing requirements before cast in the lower mold. The position of the assembled and formed special-shaped steel pipe cannot be changed in the process of transferring and hoisting, derusting and corrosion preventing because of the addition of the fixed supports. The problem that the assembling quality of the special-shaped steel tube cannot be guaranteed is solved, and meanwhile, the working efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of metallurgical equipment manufacturing, in particular to a tool for fitting special-shaped steel pipes on cooling walls of ironmaking blast furnaces and a fitting method thereof. Background technique [0002] The cooling stave is an important cooling equipment for the furnace wall of the ironmaking blast furnace. Its cooling method is mainly through the continuous delivery of circulating water through the multiple special-shaped steel pipes in the slab to take away the heat for cooling. The quality of the cooling stave determines the production efficiency and quality of the blast furnace. Safety factor. [0003] The wall of the blast furnace is formed into a cone structure as a whole, so the structure of each stave is also in the shape of a cone. Please refer to the attached drawing of the manual for the structure of the stave. figure 1 , the stave consists of a casting slab and four or more special-shape...

AI Technical Summary

Problems solved by technology

[0005] Since there is no corresponding special tool for the matching of special-shaped steel pipes at present, and there is a lack of reasonable and effective method of matching, so in the current matching process, there are often gaps between special-shaped steel pipes, radians, tapers, and diagonal angles of the entire set of water pipes The line is out of tolerance, resulting in rework or even waste

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