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Blast furnace cooling wall

A technology for cooling walls and blast furnaces, applied in the direction of cooling devices, etc., can solve the problems of easily eroding copper tubes, reducing cooling capacity, and low strength of copper tubes, avoiding penetrating cracks, improving service life, and low thermal resistance. Effect

Inactive Publication Date: 2015-10-21
武钢集团有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the process control is not good during casting, there will be a gap between the water pipe and the wall, which will increase the thermal resistance and reduce the cooling capacity
[0013] The publication number is 200996792, and the utility model patent published on December 26, 2007 discloses a new type of cast iron stave with low thermal resistance. The thermal conductivity between the stave body and the stave body; but the disadvantage is that when the stave body has penetrating cracks and large deformations, the copper tube is easy to crack due to its low strength
And the melting point of copper is much lower than that of iron, so it is prone to corrosion or copper tube melting defects during casting

Method used

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Embodiment Construction

[0031] The present invention will be further described below in conjunction with the accompanying drawings.

[0032] see Figure 1-Figure 4 , a blast furnace stave, comprising a stave body 1 made of cast steel or cast iron, a plurality of dovetail grooves 4 arranged in parallel on the stave body 1, a plurality of steel pipes 2 cast into the stave body 1, the The steel pipe 2 includes a steel pipe body 2-1, a steel pipe inlet 2-2 and a steel pipe outlet 2-3, the steel pipe body 2-1, the steel pipe inlet 2-2 and the steel pipe outlet 2-3 are U-shaped as a whole, and the steel pipe The inlet 2-2 and the steel pipe outlet 2-3 protrude from the stave body 1; the surface of the steel pipe body 2-1 is provided with a copper composite layer 3 made of pure copper material;

[0033] The thickness of the copper composite layer 3 is 5 mm.

[0034] During production, first consolidate a layer of copper composite layer 3 made of pure copper material on the outer surface of the steel pipe ...

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Abstract

The invention discloses a blast furnace cooling wall which comprises a cooling wall body, a dovetail groove formed in the cooling wall body and a plurality of steel pipes cast in the cooling wall body. The steel pipes comprise steel pipe bodies, steel pipe inlets and steel pipe outlets. The steel pipe inlets and the steel pipe outlets stretch out of the cooling wall bodies. Copper compound layers are arranged on the surfaces of the steel pipe bodies and are made of pure-copper materials. The blast furnace cooling wall has good heat transfer performance and damage-resisting performance, the service life of the cooling wall is prolonged, and the production cost is saved.

Description

technical field [0001] The invention relates to a furnace body cooling device of a blast furnace, in particular to a cooling wall of a blast furnace. Background technique [0002] The stave is the cooling equipment of the blast furnace body, its main function is to protect the furnace shell, cool and support the refractory material and maintain a reasonable furnace shape. Its working principle is to cool the furnace lining or molten slag and iron to form a slag skin, and finally the circulating cooling water in the water pipe discharges the heat out of the furnace. Its main structure is an approximately rectangular parallelepiped metal structure, and water pipes are consolidated in the stave body, and the water pipes are arranged in a straight line or in a serpentine shape. The stave is installed on the inner surface of the blast furnace shell, and the water pipe passes through the shell. Cooling water or other media are passed through the water pipe during blast furnace p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21B7/10
Inventor 姜本熹徐名涛陈辉卢献忠李昕
Owner 武钢集团有限公司
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