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Method and device for producing crude antimony by smelting antimony oxide-containing material in smelting furnace

A molten pool smelting technology containing antimony oxide, applied in the field of antimony smelting, can solve the problems of low direct metal recovery rate, low production efficiency, and high labor intensity, and achieve good economic benefits, high production efficiency, and low labor intensity.

Active Publication Date: 2014-07-16
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

[0006] The technical problem to be solved by the present invention is to overcome the disadvantages of high energy consumption, low metal direct recovery rate, low production efficiency, high labor intensity and poor operating environment in the traditional antimony reverberatory furnace reduction smelting process, and provide a low energy consumption Method and device for producing crude antimony by melting pool smelting antimony oxide-containing material with low metal direct recovery rate and high production efficiency

Method used

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  • Method and device for producing crude antimony by smelting antimony oxide-containing material in smelting furnace

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] The method for producing crude antimony by melting in a molten pool containing antimony oxide material in this embodiment specifically includes the following steps:

[0042] In this embodiment, the furnace materials (including antimony oxide-containing materials, anthracite, iron ore, lime, etc.) comprehensive silicate gangue composition: SiO 2 :FeO:CaO=1:1.2:0.6;

[0043] Crush the anthracite to a particle size of less than 2mm, and measure the coarse antimony trioxide powder, anthracite, hematite, and quicklime according to the mass ratio of 100:20:6:1; the coarse antimony trioxide powder is measured from the silo II11 through batching Belt Ⅱ13 metering, the crushed anthracite powder is metered from silo Ⅲ12 and batching metering belt Ⅲ14, and then transferred to the pressure-feeding pneumatic conveying pump 16 through the transfer belt Ⅱ15. 21 is sprayed into the molten pool melting furnace;

[0044] Iron ore and lime are respectively measured from silo Ⅰ1 through ...

Embodiment 2

[0049] The method of utilizing antimony oxide-containing material molten pool smelting to produce crude antimony in this embodiment is the same as that in embodiment 1, except that:

[0050] The materials (including materials containing antimony oxide, reducing agent, flux iron ore, flux lime, etc.) put into the furnace in this embodiment satisfy the following mass ratio of SiO 2 : FeO: CaO = 1: 1.3: 0.5.

[0051] The antimony oxide ore, anthracite, iron ore, and lime are measured by the electronic belt scale according to the ratio of 100:25:12:5, and then continuously put into the oxygen-enriched side blowing molten pool melting furnace through the feeding port 5; the temperature in the furnace is controlled at 1200 ℃~1300℃, the depth of the molten pool is 1500~1750mm; the oxygen volume ratio of the oxygen-enriched air is 85%; the pressure of the oxygen-enriched air is controlled at 0.05~0.08MPa, and the wind speed is 185m / s; Contains 0.8% antimony.

[0052] The bed capacit...

Embodiment 3

[0054] The method of utilizing antimony oxide-containing material molten pool smelting to produce crude antimony in this embodiment is the same as that in embodiment 1, except that:

[0055] The materials (including materials containing antimony oxide, reducing agent, flux iron ore, flux lime, etc.) put into the furnace in this embodiment satisfy the following mass ratio of SiO 2 : FeO: CaO = 1: 0.8: 0.8.

[0056] The antimony oxide ore, anthracite, iron ore, and lime are measured by the electronic belt scale according to the ratio of 100:12:8:3, and then continuously put into the oxygen-enriched side blowing molten pool melting furnace through the feeding port 5; the temperature in the furnace is controlled at 1200 ℃~1300℃, the depth of the molten pool is 1500~1750mm; the oxygen volume ratio of the oxygen-enriched air is 35%; the pressure of the oxygen-enriched air is controlled at 0.05~0.08MPa, and the wind speed is 150m / s; Contains 0.8% antimony.

[0057] The bed capacity...

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Abstract

The invention relates to method and device for producing crude antimony by smelting an antimony oxide-containing material in a smelting furnace. The method for producing the crude antimony by smelting the antimony oxide-containing material in the smelting furnace comprises the following steps that with the antimony oxide-containing material as a raw material, blind coal or coke or natural gas or coal gas and the like as a reducing agent and fuel and iron ores and lime as fusing agents, oxygen-enriched air is blown; feed materials are metered and then enter a smelting furnace of an oxygen-enriched side-blown reduction smelting pool to react so as to produce the crude antimony, furnace slag and flue gases; the crude antimony and the furnace slag are respectively discharged after being precipitated and layered in the smelting furnace, the crude antimony is delivered to a next procedure for refining, and the furnace slag can be directly used as waste slag after being subjected to water quenching; after the flue gases are subjected to condensing and dust collection, dust obtained through condensation is returned to be treated, and a tail gas is discharged by reaching the standard after being treated. The invention also comprises the device for producing the crude antimony by smelting the antimony oxide-containing material. The method and device which are disclosed by the invention have the advantages of high raw material adaptability, low energy consumption, high direct yield and recovery rate of antimony metal, high production efficiency, low labor intensity, cleanness and environmental protection in production, low production cost and good economic benefit.

Description

technical field [0001] The invention relates to a method and device for smelting antimony, in particular to a method and device for producing crude antimony by smelting materials containing antimony oxide in an oxygen-enriched side-blowing reduction molten pool. Background technique [0002] Antimony metallurgy is divided into pyrometallurgy and wet method. At present, the pyrometallurgical process in antimony metallurgical production has an absolute advantage, reaching more than 95%; and the process flow of "antimony concentrate blast furnace volatilization smelting-coarse antimony trioxide reverberatory furnace reduction smelting" It is the basic process adopted by most antimony smelters in my country at present. [0003] Although the antimony reverberatory furnace has the advantages of simple operation, the slag contains high antimony rate and the direct metal recovery rate is low; the manual coal burning method has low production efficiency, high labor intensity, and poor...

Claims

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Application Information

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IPC IPC(8): C22B30/02C22B5/10C22B5/12C22B7/00C22B7/02
CPCY02P10/20
Inventor 高长春邓卫华廖光荣刘放云龚福保李志强谈应顺许望桃戴永俊陈正杰曾乐泉雷红旗李俊明杨运清张继革宋应球金贵忠彭世金王卫国邹雄高梁俊杰邹新龙段贤涛刘力
Owner 锡矿山闪星锑业有限责任公司
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