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Cooling wall structure

A cooling wall and inner wall surface technology, applied in the direction of cooling devices, etc., can solve the problems of body erosion damage and large damage ratio, and achieve the effects of prolonging service life, improving operation indicators, and benefiting blast furnace production

Pending Publication Date: 2021-05-25
MCC CAPITAL ENGINEERING & RESEARCH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, once the slag skin falls off during the production process, the falling charge and rising high-temperature gas flow will cause erosion damage to the body
Larger percentage of damage due to scour in copper stave damage investigation

Method used

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Embodiment Construction

[0036] The details of the present invention can be more clearly understood with reference to the accompanying drawings and the description of the specific embodiments of the present invention. However, the specific embodiments of the present invention described herein are only for the purpose of explaining the present invention, and should not be construed as limiting the present invention in any way. Under the teaching of the present invention, the skilled person can conceive any possible modifications based on the present invention, and these should be regarded as belonging to the scope of the present invention.

[0037] like figure 1 , figure 2 As shown, the present invention provides a stave structure 100, which is arranged on the inner wall of the blast furnace shell 200, wherein the stave structure 100 includes a first stave 10 and a second stave 20 with different thermal conductivity. The wall 10 is located above the second cooling wall 20 , and the bottom edge of th...

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Abstract

The invention provides a cooling wall structure, and belongs to the technical field of ferrous metallurgy. The cooling wall structure is arranged on the inner wall surface of a blast furnace shell, wherein the cooling wall structure comprises a first cooling wall and a second cooling wall which are different in heat conductivity coefficient, the first cooling wall is located above the second cooling wall, and a retracting interval is formed between the bottom edge of the hot surface of the first cooling wall and the top edge of the hot surface of the second cooling wall in the horizontal direction. According to the cooling wall structure, the actual operation inner shape after slag skin of the cooling wall is formed can be smooth, and the production of a blast furnace is facilitated; and meanwhile, the whole cooling equipment can be effectively protected, and the service life of the blast furnace can be prolonged.

Description

technical field [0001] The invention relates to the technical field of iron and steel metallurgy, in particular to a cooling wall structure. Background technique [0002] In the blast furnace smelting process, complex physical and chemical reactions are carried out on the bollard, the furnace waist and the lower part of the furnace body. The working conditions are harsh and the heat flow intensity is large. The bolly, the waist and the lower part of the furnace body of large and medium-sized blast furnaces have been widely used. However, through the use in recent years, it is found that the copper cooling stave has not achieved the expected effect, and the copper cooling stave has been damaged after several years of production in some blast furnaces. The high investment did not bring long-term benefits, which brought unsafe hazards to blast furnace production and increased production costs. [0003] Through the damage investigation of some blast furnace copper cooling stav...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21B7/10
CPCC21B7/10
Inventor 王春龙全强祁四清赵艳霞曹英杰李平潮
Owner MCC CAPITAL ENGINEERING & RESEARCH