High conductive copper-steel composite cast cooling wall of blast furnace

A copper-steel composite and cooling stave technology, which is applied in cooling devices and other directions, can solve the problems of limited service life, insufficient cooling capacity, and low service life of cast steel staves, and achieve comprehensive performance improvement, carbon content reduction, and toughness improvement. Effect
CN1456687AInactive Publication Date: 2003-11-19孙健
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
孙健
Publication Date
2003-11-19
Estimated Expiration
Not applicable · inactive patent

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Abstract

A cooling wall of blast furnace is made up of pure copper and microalloyed steel through combined casting. It has high thermal conductivity, rigidity, high-temp strength and thermal flushing and heat shock resistance. The surface of water tube inlaid in it is plated by Zn or Sn. The inlaid copper part is welded to the cooling water tubes.
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Description

technical field

[0001] The invention relates to a high thermal conductivity copper-steel composite casting blast furnace stave, which is composed of a stave body (1), embedded copper parts (2), cooling water pipes (3) and other connecting parts. It is an important cooling device for a blast furnace body, and the invention belongs to the technical field of ironmaking. technical background

[0002] During the smelting process of the blast furnace, due to the damage of the brick lining in the bosh, furnace waist and lower part of the furnace shaft, the surface of the stave is directly exposed to the furnace, and is subject to severe heat load and impact, slag iron erosion, and strong gas flow erosion And the mechanical wear of the furnace charge, etc., so the stave in this area has always been the most severely damaged part of the stave. Seriously affect the service life of the blast furnace.

[0003] The materials of traditional staves are gray cast iron, alloy cast iron, no...

Claims

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