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

A technology of antimony blast furnace and crude antimony, which is applied in the field of antimony blast furnace to produce antimony matte and crude antimony volatilization furnace, which can solve the problems of large energy consumption, insufficient use of heat energy, and increased production cost of antimony blast furnace

Inactive Publication Date: 2012-07-04
锡矿山闪星锑业有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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

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Effect test

Embodiment 1

[0016] Embodiment 1: Antimony blast furnace produces antimony matte, crude antimony blowing furnace direct blowing device

[0017] It includes an antimony blast furnace 1 and an antimony blast furnace front bed 3 arranged above the front bed burner 7, a slag passage 2 is provided between the antimony blast furnace 1 and the antimony blast furnace front bed 3, and the blowing furnace 6 is arranged on the antimony blast furnace front bed At the end of the furnace, there is an antimony channel 5 between the blowing furnace and the front bed of the antimony blast furnace.

Embodiment 2

[0019] The device of embodiment 1 is applied to the method of direct blowing:

[0020] (1) After the antimony-containing material is oxidized and volatilized by the antimony blast furnace, most of the antimony enters the condensation dust collection system in the gaseous state of antimony trioxide; a small part of antimony enters the slag phase in the form of antimony matte and coarse antimony;

[0021] The antimony matte, crude antimony and molten slag phase in step (2) and (1) enter the front bed of the antimony blast furnace together. In the front bed of the antimony blast furnace, the proportion of antimony matte and crude antimony is 6.5×10 3 kg / m 3 , while the specific gravity of slag is 3.0×10 3 kg / m 3 , the slag floats on the antimony matte and crude antimony; realize the separation of antimony matte, crude antimony and slag;

[0022] (3) Antimony matte and crude antimony enter the blowing furnace directly through the antimony channel; after the liquid level of the...

Embodiment 3

[0025] Embodiment 3: Different from Embodiment 2:

[0026] at 1.0m 2 Set 1.0m at the tail end of the front bed of the antimony blast furnace 2 The blowing furnace treats the antimony matte and crude antimony melt produced by the antimony blast furnace. The average antimony grade of antimony matte and crude antimony is 75.1%, and the average gold content is 105g / t. The output rate of antimony trioxide in the blowing furnace is 92.8%. The recovery rate is 9.3%, the precious antimony contains 1098g / t of gold, and the comprehensive recovery rate of gold is 93.07%. Blast furnace unit bed capacity: 27.9t / m 2 .d, coke rate 31.0%, iron ore rate 34.5%, antimony comprehensive recovery rate 96.2%.

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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...

Claims

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Application Information

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IPC IPC(8): C22B30/02
CPCY02P10/20
Inventor 龚福保廖光荣刘放云邓卫华戴永俊陈正杰
Owner 锡矿山闪星锑业有限责任公司
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