Antimony oxide powder pure oxygen side-blowing reduction smelting method

A technology of antimony oxide powder and pure oxygen, applied in furnaces, lighting and heating equipment, crucible furnaces, etc., can solve the problems of high energy consumption, high labor intensity, and high production cost of antimony oxide powder, and achieve reduced labor intensity and process control Accurate, exhaust emission reduction effect

Pending Publication Date: 2022-06-03
广西华远金属化工有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Aiming at the problems of high energy consumption, high production cost, high labor intensity, and dust spillage in the traditional reverberatory furnace for processing antimony oxygen powder in the prior art, the present invention provides a pure oxygen side-blown reduction smelting method for antimony oxygen powder, which uses pure oxygen The side-blowing reduction smelting technology is applied to the reduction smelting of antimony oxide powder of brittle pyro-lead-antimony ore to replace the existing reverberatory furnace production with high energy consumption and high cost

Method used

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  • Antimony oxide powder pure oxygen side-blowing reduction smelting method

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Embodiment 1

[0024] A pure oxygen side-blown reduction smelting method for antimony oxide powder, comprising the following steps:

[0025] 1) According to the weight ratio of antimony-containing material: reducing agent = 10:1, mix evenly, the feeding system adopts the grab bucket for batching, and after the metering belt is measured, the material is directly sent into the side-blown furnace by the belt, and passes through the bottom of the furnace. The side of the furnace and the top of the furnace continuously provide heat to the furnace with pure oxygen combustion reducing agent, the pressure is controlled at 10-15kPa, and the flow rate is 80-90m 3 / h, control the temperature in the furnace at 1150-1450℃, and the raw and auxiliary materials are fully melted and reduced;

[0026] The antimony-containing materials include antimony oxide powder, anode slime antimony slag or other antimony-containing raw materials, in any proportion when mixed; the reducing agent is anthracite; the side-blo...

Embodiment 2

[0029] A kind of antimony oxide powder pure oxygen side-blown reduction smelting method, compared with embodiment 1, step 1) according to the weight ratio of antimony-containing material: reducing agent=9.5:1, other is the same as embodiment 1.

Embodiment 3

[0031] A kind of antimony oxide powder pure oxygen side-blown reduction smelting method, compared with embodiment 1, step 1) according to the weight ratio of antimony-containing material: reducing agent=10.5:1, other is the same as embodiment 1.

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Abstract

The invention discloses a pure oxygen side-blown reduction smelting method for antimony oxide powder, which comprises the following steps: feeding natural gas and industrial pure oxygen into a side-blown furnace, mixing, combusting in a slag layer, fully stirring a molten pool, and providing heat for reduction of molten materials and metals; antimony-containing materials (reducing slag and antimony oxide powder) enter a side blowing furnace according to a certain proportion, and a reducing agent is added for reduction smelting to produce crude antimony; antimony, lead, bismuth and other valuable metals are reduced into metals to be produced in the form of crude antimony, and gold and silver are enriched in the crude antimony; natural gas is fully combusted in pure oxygen, the calorific value is high, the combustion heat is increased by 5 times compared with that in air, waste gas emission is greatly reduced and is equivalent to one fifth of the volume of waste gas generated by air combustion, and the method is a very effective way for energy conservation and emission reduction.

Description

【Technical field】 [0001] The invention relates to the technical field of non-ferrous metal metallurgy, in particular to a side-blown reduction smelting method for antimony oxide powder with pure oxygen. 【Background technique】 [0002] The global antimony ore resources are divided into two categories: 1. Single antimony ore (the main component Sb, including antimony sulfide ore, antimony oxide ore and mixed antimony ore, accounting for about 80% of antimony resources); 2. brittle sulfide lead antimony ore ( The main components are Pb, Sb, and Ag, accounting for about 20% of antimony resources). The brittle sulfur, lead and antimony ore sources are mainly concentrated in Hechi, Guangxi. The traditionally treated brittle sulfur-lead-antimony ore adopts a sintering-blast furnace reduction smelting-ash blowing-reverberatory furnace refining process, which has been eliminated by the industry due to problems such as sulfur dioxide flue gas pollution. [0003] At present, relevant...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B30/02C22B5/10C22B13/02C22B11/02C22B30/06C22B7/00F27B14/04F27B14/08F27B14/16F27D1/12F27D17/00
CPCC22B30/02C22B5/10C22B13/02C22B13/025C22B11/02C22B11/021C22B30/06C22B7/001F27B14/04F27B14/08F27B14/0806F27D1/12F27D17/008F27B2014/004F27M2003/13Y02P10/20
Inventor 庞洲莫兴德杨世干吴宝育郭鼎黄显纯
Owner 广西华远金属化工有限公司
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