Air coal blown converter and tin concentrate air coal blown converter smelting method

A technology of air-coal blowing furnace and smelting method is applied in the field of non-ferrous metal pyrometallurgy, which can solve the problems of increasing energy, environment and site cost, and achieve the effects of strong material adaptability, convenient operation and short process.

Active Publication Date: 2015-01-07
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The above methods are only partial improvements on different smelting, reduction, and fuming metallurgical equipment, and the crude tin smelting method designed is only a combination of different equipment, and the materials need to enter the corresponding metallurgical equipment between each process. Furnace processing, which will inevitably increase the cost of energy, environment, site, etc.

Method used

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  • Air coal blown converter and tin concentrate air coal blown converter smelting method
  • Air coal blown converter and tin concentrate air coal blown converter smelting method
  • Air coal blown converter and tin concentrate air coal blown converter smelting method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] like Figures 1 to 3 As shown, the air-coal blowing furnace includes a furnace body, a flue 1, a slag outlet 2, a tin outlet 5 and a raw material inlet 7, and also includes an air-coal blowpipe 6 and a pyrite inlet 8, and the furnace body is in the form of a column body, the bottom of the furnace body is conical, and the furnace body is divided into a concentrate smelting area and a slag fuming area, and the top of the furnace body is provided with a raw material inlet 7 and a pyrite inlet 8 corresponding to the concentrate smelting area and the slag fuming area, respectively. There is a tin outlet 5 on one side of the cone, and the wind coal blowing pipe 6 is symmetrically located at the lower part of the front and rear sides of the furnace body. A flue 1 is provided on the upper side of the side of the furnace body, and a slag outlet is provided on the same side of the lower end of the flue 1. Mouth 2.

[0024] Among them, the wind coal blowpipe 6 is located between ...

Embodiment 2

[0029] like Figures 1 to 3 As shown, the air-coal blowing furnace includes a furnace body, a flue 1, a slag outlet 2, a tin outlet 5 and a raw material inlet 7, and also includes an air-coal blowpipe 6 and a pyrite inlet 8, and the furnace body is in the form of a column body, the bottom of the furnace body is conical, and the furnace body is divided into a concentrate smelting area and a slag fuming area, and the top of the furnace body is provided with a raw material inlet 7 and a pyrite inlet 8 corresponding to the concentrate smelting area and the slag fuming area, respectively. There is a tin outlet 5 on one side of the cone, and the wind coal blowing pipe 6 is symmetrically located at the lower part of the front and rear sides of the furnace body. A flue 1 is provided on the upper side of the side of the furnace body, and a slag outlet is provided on the same side of the lower end of the flue 1. Mouth 2.

[0030]Among them, the wind coal blowpipe 6 is located between t...

Embodiment 3

[0035] like Figures 1 to 3 As shown, the air-coal blowing furnace includes a furnace body, a flue 1, a slag outlet 2, a tin outlet 5 and a raw material inlet 7, and also includes an air-coal blowpipe 6 and a pyrite inlet 8, and the furnace body is in the form of a column body, the bottom of the furnace body is conical, and the furnace body is divided into a concentrate smelting area and a slag fuming area, and the top of the furnace body is provided with a raw material inlet 7 and a pyrite inlet 8 corresponding to the concentrate smelting area and the slag fuming area, respectively. There is a tin outlet 5 on one side of the cone, and the wind coal blowing pipe 6 is symmetrically located at the lower part of the front and rear sides of the furnace body. A flue 1 is provided on the upper side of the side of the furnace body, and a slag outlet is provided on the same side of the lower end of the flue 1. Mouth 2.

[0036] Among them, the wind coal blowpipe 6 is located between ...

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Abstract

The invention relates to an air coal blown converter and a tin concentrate air coal blown converter smelting method and belongs to the technical field of non-ferrous metal pyrometallurgy. The air coal blown converter comprises a converter body, a flue, a slag hole, a tin discharging hole and a raw material inlet and also comprises an air coal blow pipe and a pyrite inlet, wherein the converter body is a cylinder, the bottom of the converter body is conical, the converter body is divided into a concentrate smelting region and a slag fuming region, the raw material inlet and the pyrite inlet are formed in the top of the converter body and respectively correspond to the concentrate smelting region and the slag fuming region. The tin concentrate air coal blown converter smelting method comprises the following steps: firstly adding tin concentrate and a reducing agent, optionally adding a solvent, and smelting in the concentrate smelting region and a reacting region to obtain crude tin and tin-containing slag, discharging the crude tin, then putting pyrite into the slag fuming region for carrying out fuming operation including volatilizing and collecting SnS smoke dust, and discharging low-tin slag. The tin concentrate air coal blown converter smelting method has the advantages of simple technology, short flow, safe and controllable process and good environmental benefit, and is easy to operate.

Description

technical field [0001] The invention relates to an air-coal blowing furnace and a tin concentrate air-coal blowing furnace smelting method, belonging to the technical field of nonferrous metal pyrometallurgy. Background technique [0002] Traditional tin smelting technologies include blast furnace tin smelting, electric furnace tin smelting and reverberatory furnace tin smelting, all of which were developed from the original shaft furnace tin smelting. Blast furnace tin smelting is an earlier tin smelting method, but the material preparation has not been properly solved, so far only a few manufacturers use it. Electric furnace tin smelting began in 1934. At present, the output of electric furnace tin smelting in the world accounts for about 10% of the world's total output. The electric tin smelting furnace is basically sealed, the concentration of carbon monoxide in the furnace is high, and the reducing atmosphere is strong, so it is only suitable for processing Low iron ti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B5/02C22B30/02C22B13/02
Inventor 杨斌戴永年徐宝强李一夫刘大春马文会曲涛蒋文龙熊恒郁青春王飞邓勇田阳
Owner KUNMING UNIV OF SCI & TECH
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