Stibium blast furnace for generating antimony matte, device of coarse stibium blowing furnace and direct converting method

Abstract

Provided are a stibium blast furnace for generating antimony matte, a device of a coarse stibium blowing furnace and a direct converting method. The device comprises the stibium blast furnace, a stibium blast furnace front bed arranged above a front bed furnace head and a blowing furnace and is characterized in that a slag through channel is arranged between the stibium blast furnace and the stibium blast furnace front bed, the blowing furnace is arranged at the tail portion of the stibium blast furnace front bed, and a stibium through channel is arranged between the blowing furnace and the stibium blast furnace front bed. The stibium blast furnace, the stibium blast furnace front bed and the blowing furnace are optimized, and the antimony matte and coarse stibium directly enter the blowing furnace through the stibium through channel, the thermal energy of the stibium blast furnace front bed is fully utilized, the antimony matte and the coarse stibium which enter the blowing furnace for converting are hot melt, and continuous production can be achieved without external heating. A technical economic index of the stibium blast furnace is optimized, the treatment performance of the stibium blast furnace bed is improved by 10% or more, and coke rate is >=5%, stibium comprehensive recovery rate is improved by 0.2% or more, and the comprehensive recovery rate of precious metal is improved by 3.0% or more.

Description

technical field [0001] The invention relates to a device for producing antimony matte in an antimony blast furnace and a crude antimony blowing furnace and its application to a direct blowing method. Background technique [0002] At present, more than 90% of antimony production processes at home and abroad adopt the pyrometallurgy process, and the pyrometallurgical smelting process is mainly based on the antimony concentrate blast furnace volatilization smelting-antimony reverberatory furnace reduction smelting and refining process. The antimony blast furnace is generally favored by antimony smelting enterprises because of its high hearth processing capacity, strong adaptability to raw materials, and high metal recovery rate. The main product of the antimony blast furnace is antimony trioxide, and the auxiliary products are antimony matte and crude antimony. %), need further processing. At present, the antimony matte and crude antimony produced by the antimony blast furnac...

AI Technical Summary

Problems solved by technology

This treatment process not only does not make full use of the thermal energy of the hot-melt antimony matte and crude antimony, but also consumes a lot of energy to remelt the cold antimony matte and crude antimony, and the unit consumption of bituminous coal is 980kg / t of furnace materials

At the same time, if the cold antimony matte and crude antimony enter the antimony blast furnace as return products, it will affect a series of technical and economic indicators such as the unit processing capacity of the antimony blast furnace, thereby increasing the production cost of the antimony blast furnace

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