Copper-steel composite cooling wall

Abstract

The invention belongs to the technical field of blast furnace body cooling, and discloses a copper-steel composite cooling wall capable of improving the overall structural strength and prolonging the service life of the cooling wall. The copper-steel composite cooling wall comprises a first cooling wall body made of copper, a second cooling wall body made of steel and a connecting structure for fixedly connecting the first cooling wall body and the second cooling wall body, wherein a plurality of cooling channels arranged in parallel at intervals are formed in the first cooling wall body in the vertical direction, the first wall face, facing the interior of a blast furnace, of the first cooling wall body forms a hot face, and the second wall face on the other side is attached to the third wall face of the second cooling wall body; the third wall face of the second cooling wall body is attached and connected to the second wall face, and the fourth wall face, used for being fixedly connected with the blast furnace, of the second cooling wall body forms a cold face; and the connecting structure comprises groove structures and convex strip structures, the groove structures are formed in the second wall face in the vertical direction and located between the adjacent cooling channels, the shapes of the convex strip structures are matched with the shapes of the groove structures, and the convex strip structures and the groove structures are in insertion fit.

Description

technical field [0001] The invention belongs to the technical field of furnace body cooling equipment for ironmaking blast furnaces, and in particular relates to a copper-steel composite cooling wall. Background technique [0002] In the current global steel production, the blast furnace is an important equipment for ironmaking, which includes: a furnace wall made of steel plates; blast furnace cooling equipment is fixed on the inner peripheral wall of the furnace wall, and the blast furnace cooling equipment consists of multiple cooling walls It is formed by masonry, and its working principle is: through the circulation of cooling medium in the cooling wall, the heat transferred from the blast furnace can be smoothly exported, so as to avoid the high-temperature heat flow from directly reaching the furnace wall. As the heat transfer equipment of the blast furnace, the stave plays a vital role in the service life of the blast furnace. [0003] Due to the excellent thermal c...

AI Technical Summary

Problems solved by technology

However, in actual use, it is found that the copper stave has the defect of low metal strength, that is, the overall strength of the copper stave made of copper is much lower than that of the cast iron stave and the cast steel stave, especially, the copper stave is opened The position of the hole used to fix the blast furnace wall is the weak point of performance, which is easy to be deformed by stress; and other positions of the copper stave will also accumulate deformation during long-term use, which will affect the service life of the copper stave

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