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Waste lead-acid storage battery and lead-containing waste regenerated reduced lead ingredient and preparation method

A technology for waste lead-acid batteries and waste materials, which is applied in the field of lead-zinc smelting and secondary lead metallurgy, can solve the problems of tight supply in the iron filing market, high prices, and high costs.

Pending Publication Date: 2021-11-09
尤全仁
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Disadvantage ①: huge cost
Due to the high amount of iron filings added, the economic cost has increased, making the company run at high cost for a long time. Based on the daily processing of 100 tons of lead sludge and lead paste, the consumption of iron filings is as high as 20 tons, and the price of iron filings per ton is 2900 yuan. The daily cost will increase by nearly 60,000 yuan
[0007] Disadvantage ②: high energy consumption
[0008] Disadvantage ③: The yield of reduced lead decreases
[0009] Disadvantage ④: The iron filings market is in short supply and the price remains high

Method used

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  • Waste lead-acid storage battery and lead-containing waste regenerated reduced lead ingredient and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Basic as attached figure 1 Shown: a method for preparing waste lead-acid batteries and regenerated and reduced lead from lead-containing waste, comprising the following steps:

[0036] A. Ingredients, prepare iron filings, coal, iron ore slag, coke particles, return slag and main ingredients in advance; name the iron filings as the first ingredient, and the coal as the second ingredient, and the coal is white coal or anthracite; the second The mixture of the first ingredient and the second ingredient is named the third ingredient. The first ingredient and iron ore slag are mixed and named as the fourth ingredient, and the iron ore slag is pyrite slag. Scorched particles are named as the fifth ingredient, the returned slag is named as the sixth ingredient, and the main ingredient is named as the seventh ingredient. The main materials are wastes containing lead and lead compounds, including lead mud, lead paste, waste plates and other wastes. Return slag refers to the ...

Embodiment 2

[0043] The difference between this embodiment and Example 1 is that the amount of ingredients in step A is different. In this embodiment, 10 tons of the seventh ingredient is prepared; the third ingredient is prepared, accounting for 9% of the seventh ingredient, i.e. 900 kg. Among the third ingredients, the first ingredient accounts for 1 part, and the second ingredient accounts for 3 parts; the fifth ingredient is prepared, accounting for 1% of the seventh ingredient, that is, 100 kg; the sixth ingredient is prepared, accounting for 1% of the seventh ingredient, that is 100 kg. Prepare the fourth batch, which accounts for 3% of the seventh batch, i.e. 300 kilograms, wherein the first batch accounts for 9.5 parts in the fourth batch, and the iron ore slag accounts for 0.5 part.

[0044] 6.1 tons of reduced lead ingots were obtained by putting into the furnace, the water-reducing direct recovery rate reached 68.5%, and the total recovery rate reached 98.8%.

Embodiment 3

[0046] The difference between this embodiment and Example 1 is that the amount of ingredients in step A is different, and 10 tons of the seventh ingredient is prepared; the third ingredient is prepared, accounting for 9% of the seventh ingredient, that is, 900 kg, of which the third ingredient The first ingredient accounts for 1.8 parts, and the second ingredient accounts for 4 parts; prepare the fifth ingredient, which accounts for 1% of the seventh ingredient, or 100 kilograms; prepare the sixth ingredient, which accounts for 1% of the seventh ingredient, or 100 kilograms. Prepare the fourth batch, which accounts for 3% of the seventh batch, i.e. 300 kilograms, wherein the first batch accounts for 10 parts in the fourth batch, and the iron ore slag accounts for 0.1 part.

[0047] 6.04 tons of reduced lead ingots were obtained by putting into the furnace, the water-reduced direct recovery rate reached 70.2%, and the total recovery rate reached 97.3%.

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Abstract

The invention relates to the field of lead-zinc smelting secondary lead metallurgy, in particular to a waste lead-acid storage battery and lead-containing waste regenerated reduced lead ingredient and a preparation method thereof. The waste lead-acid storage battery and lead-containing waste regenerated reduced lead ingredient comprises a first ingredient, a second ingredient, a third ingredient, a fourth ingredient, a fifth ingredient, a sixth ingredient and a seventh ingredient, wherein the first ingredient comprises scrap iron, the second ingredient comprises coal, the third ingredient comprises the first ingredient and the second ingredient, the fourth ingredient comprises the first ingredient and iron ore cinder, the fifth ingredient comprises scorched particles, the sixth ingredient comprises return slag, and the seventh ingredient comprises a main material. The preparation method comprises the following steps of A, preparing the materials; B, preparing equipment; C, adding the third ingredient, the fifth ingredient, the sixth ingredient and the seventh ingredient into a furnace and smelting; D, raking the liquid surface with a rake, and adding a fourth ingredient when dense smoke emerges from the rake, when it is observed that the liquid level in the furnace is bright and boiling does not occur, adding of the fourth ingredient is stopped; and E, carrying out furnace discharging. According to the scheme, the regeneration and reduction cost of the waste lead-acid storage battery and the lead-containing waste is reduced.

Description

technical field [0001] The invention relates to the field of lead-zinc smelting and regenerated lead metallurgy, in particular to a waste lead-acid storage battery and lead-containing waste regenerated and reduced lead ingredients and a preparation method. Background technique [0002] Lead-containing waste, including lead mud, lead paste, and waste plates after dismantling waste lead-acid batteries, they are wastes containing lead and lead compounds (PbSo4, PbO, PbS, Pb, etc.). These waste materials (main materials) need to be mixed with auxiliary materials (iron filings, coke powder or white coal, etc.) and then put into the smelting furnace together to generate reduced lead through high-temperature oxidation-reduction reaction. All kinds of raw materials added in the smelting furnace go through a series of high-temperature chemical reactions to form a slag layer and separate it from the produced lead. The lead density is high and the lower layer is in the lower layer, and...

Claims

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Application Information

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IPC IPC(8): C22B7/00C22B13/02H01M10/54
CPCC22B7/001C22B13/025H01M10/54Y02W30/84Y02P10/20
Inventor 尤全仁
Owner 尤全仁
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