Smelting equipment and smelting method

Abstract

The invention discloses smelting equipment and a smelting method. The smelting equipment comprises a horizontal tower bottom, a final reduction tower, an oxygen spray gun, a first flue, a prereduction tower, a second flue, a drying tower and a third flue, wherein a molten pool is defined by the horizontal tower bottom and partitioned into a steelmaking zone and an ironmaking zone in the horizontal direction. A molten iron layer zone, a slag layer zone and a coke layer zone are sequentially formed in the ironmaking zone from bottom to top. The steelmaking zone communicates with the molten iron layer zone through a molten iron outlet. The lower end of the final reduction tower is connected with the top end of the ironmaking zone, and a first concentrate nozzle is arranged at the top of the final reduction tower. The oxygen spray gun is embedded into the steelmaking zone from the upper end of the horizontal tower bottom. The bottom end of the first flue is connected with the top end of the ironmaking zone. The upper end of the prereduction tower is connected with the upper end of the first flue, and a second concentrate nozzle is arranged at the top of the prereduction tower. The lower end of the second flue is connected with the lower end of a prereduction tower cavity. The upper end of the drying tower is connected with the upper end of the second flue, and a wet iron sand inlet is formed in the top of the drying tower. The lower end of the third flue is connected with the lower end of the drying tower. The smelting equipment can remarkably improve the ferrous metallurgy efficiency and achieve cleaner production.

Description

technical field [0001] The invention belongs to the technical field of ironmaking, in particular, the invention relates to a smelting equipment and a smelting method. Background technique [0002] The iron and steel industry usually uses blast furnaces for ironmaking and converters for steelmaking, and sinters the ironmaking raw materials, and uses a large amount of coked coke, which has problems such as long process, low efficiency, high energy consumption, large investment, and environmental pollution. , so the existing smelting technology needs to be further improved. Contents of the invention [0003] The present invention aims to solve one of the technical problems in the related art at least to a certain extent. Therefore, an object of the present invention is to provide a smelting equipment and a smelting method, which can significantly improve iron and steel metallurgical efficiency and realize clean production. [0004] In one aspect of the present invention, th...

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Problems solved by technology

[0002] The iron and steel industry usually uses blast furnaces for ironmaking and converters for steelmaking, and sinters the ironmaking raw materials, and uses a large amount of coked coke, which has problems such as long process, low efficiency, high energy consumption, large investment, and environmental pollution. , so the existing smelting technology needs to be further improved

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