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Lead blowing-furnace oxygen-rich smelting process

A lead blast furnace and blast furnace technology, applied in the field of oxygen-enriched smelting process of lead blast furnace, can solve the problems of large manpower and material resources, difficult to make too much breakthrough, waste, etc., and achieve the effect of increasing the processing capacity, increasing the processing capacity and improving the process

Inactive Publication Date: 2006-05-24
HENAN YUGUANG GOLD & LEAD
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AI Technical Summary

Problems solved by technology

[0002] At present, in the process of reducing and smelting lead in lead blast furnaces, common air smelting methods are mostly used. After years of practice and exploration, the output and indicators are relatively stable, and it is difficult to make major breakthroughs. Among domestic measures to increase the processing capacity of lead blast furnaces, It is mostly carried out by expanding the hearth. This method of improving the processing capacity by transforming the equipment requires relatively large manpower and material resources, which is actually a great waste.

Method used

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  • Lead blowing-furnace oxygen-rich smelting process
  • Lead blowing-furnace oxygen-rich smelting process

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Embodiment Construction

[0010] Such as figure 1 , 2 As shown, oxygen is added to the air supplied by the Roots blower 8 to the blast furnace 10 to increase the oxygen concentration in the furnace air by 20-30%, thereby improving the reducing atmosphere of the furnace and increasing the furnace throughput. The method of adding oxygen in the air supplied by Roots blower 8 to blast furnace 10 is to connect oxygen storage tank 11 through oxygen pipeline on the pipeline where Roots blower 8 supplies air to blast furnace 10, and the oxygen in the oxygen pipeline and the self-roots blower The air supplied stably in the middle is uniformly mixed in the air pipe 9 and sent to the blast furnace 10, and silicon brass oil-free valves 12 and 13 are set on the oxygen supply pipe.

[0011] Oxygen storage tank 11 is connected with the oxygen plant of produced oxygen through intake pipe 4, pressure gauge 1 and safety valve 5 are installed on oxygen storage tank 11, set certain value according to specific requirement...

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Abstract

The invention relates to lead blast furnace oxygen enrichment smelting technology that adding oxygen into air supplied to blast furnace by blower fan to improve the oxygen concentration to 20-30%. Thus, the reducing atmosphere of the furnace is improved and the processing quantity is increased. The technology index is sharply increased, and the social and economic benefits are notable.

Description

technical field [0001] The invention belongs to the technical field of lead smelting, and in particular relates to a lead blast furnace oxygen-enriched smelting process adopted in the process of reducing and smelting lead in a lead blast furnace. Background technique [0002] At present, in the process of reducing and smelting lead in lead blast furnaces, common air smelting methods are mostly used. After years of practice and exploration, the output and indicators are relatively stable, and it is difficult to make major breakthroughs. Among domestic measures to increase the processing capacity of lead blast furnaces, It is mostly carried out by enlarging the hearth. This method of improving the processing capacity by transforming the equipment requires relatively large manpower and material resources, which is actually a great waste. Contents of the invention [0003] The object of the present invention is to overcome the deficiencies in the prior art and provide a blast ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B5/12C22B9/05C22B13/06
Inventor 王健张军力赵军星
Owner HENAN YUGUANG GOLD & LEAD
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