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Lead blowing-furnace oxygen-rich smelting process

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

Inactive Publication Date: 2009-05-27
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] like figure 1 , 2 As shown, adding oxygen to the air supplied by the roots blower 8 to the blast furnace 10 increases the oxygen concentration in the air entering the furnace by 20-30%, thereby improving the reducing atmosphere of the furnace and increasing the processing capacity of the furnace. The method of adding oxygen to the air supplied by the Roots blower 8 to the blast furnace 10 is to connect an oxygen storage tank 11 through an oxygen pipeline on the pipeline for supplying air from the Roots blower 8 to the blast furnace 10, and the oxygen in the oxygen pipeline is connected with the Roots blower. The air supplied stably in the air is uniformly mixed in the air duct 9 and then sent to the blast furnace 10. Silicon brass oil-free valves 12 and 13 are arranged on the oxygen supply duct.

[0011] The oxygen storage tank 11 is connected to the oxygen plant where the oxygen is produced through the intake pipe 4. A pressure gauge 1 and a safety valve 5 are install...

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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 the lead blast furnace, the ordinary air smelting method is mostly used. After years of practice and exploration, the output and indicators are relatively stable, and it is difficult to make a big breakthrough. In the domestic measures to increase the processing capacity of the lead blast furnace, Most of them are carried out by expanding the hearth. This method of improving the processing capacity by modifying the equipment requires relatively large input of manpower and material resources, which is actually a great waste. SUMMARY OF THE INVENTION [0003] The object of the present invention is to overcome the deficiencies existing in the pr...

Claims

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Application Information

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Patent Type & Authority Patents(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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