Disassembly method of blast furnace air supply branch pipe equipment
A disassembly method and equipment technology, which is applied to blast furnaces, blast furnace details, blast furnace parts, etc., can solve the problems of difficulty in replacing the tuyeres of blast furnaces, and achieve the effects of avoiding leakage and reducing the time for shutting down the wind
Active Publication Date: 2018-08-28
MCC BAOSTEEL TECH SERVICE
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Problems solved by technology
[0005] The technical problem to be solved by the present invention is to provide a disassembly method for blast furnace air supply branch pipe equipment to overcome the above-mentioned difficulties in the prior art in view of the difficulty in replacing the tuyere part and the middle sleeve part of the current blast furnace
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[0030] The embodiments of the present invention are described below by specific embodiments, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.
[0031] see Figure 1 to Figure 6 . It should be noted that the structures, proportions, sizes, etc. shown in the drawings in this specification are only used to cooperate with the contents disclosed in the specification, so as to be understood and read by those who are familiar with the technology, and are not used to limit the implementation of the present invention. Restricted conditions, it does not have technical substantive significance, any structural modification, proportional relationship change or size adjustment, without affecting the effect that the present invention can produce and the purpose that can be achieved, should still fall within the present invention. The disclosed technical content must be within the scope...
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Abstract
The invention provides a dismounting method of blast furnace air supply branch pipe equipment. When belly pipes are dismounted, lower pull rods, belly pipe pin shaft and the belly pipes are sequentially dismounted, and all the dismounted belly pipes are numbered and then placed in a preset zone; an air port part and a middle sleeve part are dismounted through a vehicular hydraulic drawing machine, when the air port part is dismounted, after a gib head extends into a through hole in the middle of an air port, a pull rod is spread to stretch the gib head, the gib head hooks the head of the air port part, and a drawing oil cylinder acts to pull the air port out; and when the middle sleeve part is dismounted, after the gib head penetrates through the end face of a middle sleeve, the pull rod is spread to stretch the gib head, the gib head hooks the end face of the middle sleeve, the drawing oil cylinder acts to loosen the middle sleeve and a large sleeve, and the middle is carried out through a forklift. Through the method, the dismounting and replacing construction efficiency of the blast furnace air supply branch pipe equipment can be improved, and damping down time due to overhaul construction of a blast furnace is shortened; and meanwhile, the mounting quality of the belly pipes, the air port and middle sleeve equipment is also improved, and the sealing face of the air supply branch pipe equipment is prevented from leakage.
Description
technical field [0001] The invention relates to equipment maintenance of large blast furnaces; [0002] In particular, it relates to a method for disassembling and assembling a blast furnace air supply branch pipe equipment. Background technique [0003] see figure 1 As shown, the blast furnace air supply branch pipe equipment is mainly composed of a straight blowing pipe part, a tuyere part and a middle sleeve part. . The temperature of the hot air sent from the hot air surrounding pipe is as high as 1400 °C. It first passes through the straight blowing pipe part, and then enters the blast furnace body through the tuyere part. Under the long-term continuous high temperature condition, the tuyere part and the middle sleeve part may be burned out. At this time, it is necessary to replace the tuyere part and the middle sleeve part of the blast furnace. [0004] To replace the tuyere part and the middle sleeve part, the straight blowing pipe part must be removed first, and ...
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IPC IPC(8): C21B9/10
Inventor 高勇超孙钱达刘杰舒亚魁
Owner MCC BAOSTEEL TECH SERVICE