Electric furnace

Abstract

The invention discloses an electric furnace. The electric furnace comprises a furnace body, wherein a furnace chamber is formed in the furnace body; the furnace chamber comprises an upper chamber and a molten pool positioned below the upper chamber; the furnace body comprises a bottom wall and a peripheral wall; the cross section of the peripheral wall is circular; the peripheral wall of the molten pool comprises a lining brick layer and a furnace shell positioned on the outer side of the lining brick layer; the furnace shell comprises a plurality of shell sections; the bottom ends of the shell sections are connected with the bottom wall; the shell sections are arranged in sequence along the circumferential direction of the peripheral wall; and the end parts of two adjacent shell sections are connected through an expansion regulator. The furnace shell of the electric furnace can keep a hooping effect on the lining brick layer, and can be adaptively regulated along with the expansion effect of the lining brick layer, so that deformation and failure of the furnace shell are avoided.

Description

technical field [0001] The invention relates to the technical field of smelting equipment, in particular to an electric furnace. Background technique [0002] For example, the furnace wall of an electric furnace used for non-ferrous metal smelting includes a lining brick layer and a furnace shell arranged sequentially from the inside to the outside. In order to reduce the influence of thermal expansion of the lining brick layer, reasonable expansion joints are usually reserved between the lining bricks. However, in the related art, due to factors such as difficult design or unreasonable setting of expansion joints, melt pouring into expansion joints during smelting production, etc., the lining brick layer still generates a large expansion force, and the furnace shell expands the lining brick layer. It is easy to deform and fail under the action of force, which reduces the service life of the electric furnace. Contents of the invention [0003] The present invention aims t...

AI Technical Summary

Problems solved by technology

However, in the related art, due to factors such as difficult design or unreasonable setting of expansion joints, melt pouring into expansion joints during smelting production, etc., the lining brick layer still generates a large expansion force, and the furnace shell expands the lining brick layer. It is easy to deform and fail under the action of force, which reduces the service life of the electric furnace

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