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One-step lead smelting process and device for waste lead-acid storage battery lead plaster bottom-blowing smelting

A technology of lead-acid battery and lead paste, which is applied in the field of metallurgy, can solve the problems of large system investment and long process flow, and achieve the effect of high heat utilization rate, less equipment, and increased construction cost

Inactive Publication Date: 2014-03-26
HENAN YUGUANG GOLD & LEAD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This process basically solves the problem of sulfur pollution, but the waste lead-acid battery lead paste and lead concentrate are processed together, the whole process is long and the system investment is large

Method used

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  • One-step lead smelting process and device for waste lead-acid storage battery lead plaster bottom-blowing smelting
  • One-step lead smelting process and device for waste lead-acid storage battery lead plaster bottom-blowing smelting

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Such as figure 1 , 2 As shown, a one-step lead smelting process of waste lead-acid battery lead paste bottom blowing smelting, the waste lead paste is mixed with iron slag, stones, coal, and returned soot according to the amount required for the calculation of ingredients, and then it is measured and continuously blown from the bottom. The feeding port 13 of the smelting furnace 1 is fed into the bottom-blowing smelting furnace; the lower part of the 1 keeps a molten pool formed by slag and crude lead, and the gas spray gun 14 installed at the bottom of the bottom-blowing smelting furnace 1 is continuously sprayed into the bottom-blowing smelting furnace 1. Oxygen and natural gas are fed in, and the oxygen and natural gas react with the furnace pellets to generate the same melt, flue gas and soot as the main body of the molten pool; the flue gas and soot are discharged from the exhaust port 12, and after cooling and dust collection, the flue gas is sent to The sulfuri...

Embodiment 2

[0065] Such as figure 1 , 2 As shown, a one-step lead smelting process of waste lead-acid battery lead paste bottom blowing smelting, the waste lead paste is mixed with iron slag, stones, coal, and returned soot according to the amount required for the calculation of ingredients, and then it is measured and continuously blown from the bottom. The feeding port 13 of the smelting furnace 1 is fed into the bottom-blowing smelting furnace; the lower part of the 1 keeps a molten pool formed by slag and crude lead, and the gas spray gun 14 installed at the bottom of the bottom-blowing smelting furnace 1 is continuously sprayed into the bottom-blowing smelting furnace 1. Oxygen and coal gas are fed in, and the oxygen and coal gas react with the furnace pellets to generate the same melt, flue gas and smoke dust as the main body of the molten pool; The sulfuric acid system produces acid, and the smoke and dust return to the furnace for batching; the crude lead is discharged from the ...

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Abstract

The invention belongs to the field of metallurgy and specifically relates to a one-step lead smelting process and a one-step lead smelting device for waste lead-acid storage battery lead plaster bottom-blowing smelting. A bottom-blowing smelting furnace device is used for performing bath smelting, high-temperature desulphurization and reduction to lead plaster of waste storage batteries, so as to produce water-quenched slag with low lead content, crude lead and flue gas which is suitable for making acid. By using a bottom-blowing furnace and an electric heating fore well to treat the lead plaster of the waste storage batteries to produce crude lead and waste slag, compared with the prior art, the one-step lead smelting process and a one-step lead smelting device for waste lead-acid storage battery lead plaster bottom-blowing smelting has the advantages that the process flow is short, the smelting strength is high, the recovery rate is high, the air-tightness is good, the environmental friendliness is good, the effect of continuous production can be realized, the automation level is high, the production cost is lower, the investment is saved and the like.

Description

technical field [0001] The invention belongs to the field of metallurgy, and in particular relates to a one-step lead smelting process and device for the bottom blowing smelting of the lead paste of the waste lead-acid battery used for smelting the lead paste of the waste lead-acid battery. Background technique [0002] my country is the country with the fastest growth in lead production and consumption since the 1990s. Although my country's lead resource reserves rank among the top in the world, the shortage of lead ore resources is becoming increasingly serious due to over-exploitation and lagging exploration. However, my country's current annual newly-increased proven reserves are far lower than the lead reserves required to meet lead production requirements, which means that the guarantee degree of lead resources in my country for lead production will tend to decrease in the future. 80% of lead in my country is used for lead-acid batteries, and the amount of waste lead...

Claims

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Application Information

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IPC IPC(8): C22B7/00C22B13/02
CPCY02P10/20
Inventor 赵振波李新战李贵左淮书赵传和
Owner HENAN YUGUANG GOLD & LEAD
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