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Aluminum ash treatment method

A treatment method and technology for aluminum ash, applied in the direction of improving process efficiency, can solve problems such as waste of aluminum resources, influence, environmental problems, etc., and achieve the effects of reducing pollution, reducing environmental pollution, and improving recovery rate

Active Publication Date: 2019-01-11
湖北新金洋资源股份公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the past, people regarded aluminum slag as waste and dumped it, which not only caused a waste of aluminum resources but also brought environmental problems, especially elements such as fluorine had a greater impact on water quality

Method used

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  • Aluminum ash treatment method
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Examples

Experimental program
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Effect test

Embodiment 1

[0029] S1: Using crushed water hyacinth powder as carbon source and corn flour as nitrogen source, Streptococcus mutans ua159 was cultured, wherein the mass ratio of water hyacinth powder to corn flour was 1:1, and the culture temperature was 20°C.

[0030] S2: Pour the aluminum ash into a culture tank containing a large amount of mutans streptococcus, and add sodium sulfate to it, the mass ratio of sodium sulfate to aluminum ash is 1:30, after stirring evenly, use mutans streptococcus to treat the aluminum ash for 15 Hour.

[0031] S3: Take out the processed aluminum ash, drain it, and perform ash frying operation. Use the slag hopper to slowly pour the drained aluminum ash into the rotary furnace, place a pot for receiving aluminum water under the furnace mouth, and open the dust collector. Use a slag rake to evenly distribute the fire on the surface of the ash in the furnace, so that the ash in the furnace can touch the fire and heat up rapidly (use the slag rake to stir u...

Embodiment 2

[0038] S1: Using crushed water hyacinth powder as carbon source and corn flour as nitrogen source, Streptococcus mutans ua159 was cultured, wherein the mass ratio of water hyacinth powder to corn flour was 1:1, and the culture temperature was 10°C.

[0039] S2: Pour aluminum ash into a culture tank containing a large amount of mutans streptococcus, and add sodium sulfate to it, the mass ratio of sodium sulfate to aluminum ash is 1:40, after stirring evenly, use mutans streptococcus to treat aluminum ash for 15 Hour.

[0040] S3: Take out the processed aluminum ash, drain it, and perform ash frying operation. Use the slag hopper to slowly pour the drained aluminum ash into the rotary furnace, place a pot for receiving aluminum water under the furnace mouth, and open the dust collector. Use a slag rake to evenly distribute the fire on the surface of the ash in the furnace, so that the ash in the furnace can touch the fire and heat up rapidly (use the slag rake to stir up, down,...

Embodiment 3

[0047] S1: Using crushed water hyacinth powder as carbon source and corn flour as nitrogen source, Streptococcus mutans ua159 was cultured, wherein the mass ratio of water hyacinth powder to corn flour was 1:1, and the culture temperature was 35°C.

[0048]S2: Soak the aluminum ash in sodium sulfate solution for 2 hours, the concentration of sodium sulfate in the sodium sulfate solution is 2mol / L. Pour the aluminum ash into a culture tank containing a large amount of mutans streptococcus, stir evenly, and use the mutans streptococcus to treat the aluminum ash for 15 hours.

[0049] S3: Take out the processed aluminum ash, drain it, and perform ash frying operation. Use the slag hopper to slowly pour the drained aluminum ash into the rotary furnace, place a pot for receiving aluminum water under the furnace mouth, and open the dust collector. Use a slag rake to evenly distribute the fire on the surface of the ash in the furnace, so that the ash in the furnace can touch the fir...

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Abstract

The invention relates to the technical field of metal smelting, in particular to an aluminum ash treatment method. According to the method, recycled aluminum materials and the content of fluorine elements in final waste can be significantly reduced, and the content of aluminum in the recycled materials is improved. The main process steps comprise that S1: crushed water hyacinth powder is used as acarbon source to cultivate streptococcus mutans; S2: aluminum ash is poured into a cultivation pool containing a large number of streptococcus mutans and stirred evenly, and the streptococcus mutansis used for treating the aluminum ash; S3: the treated aluminum ash is taken out, drained off and put into a rotary furnace for ash separation operation; S4: aluminum water in the rotary furnace is poured out, and intermediate aluminum particles are added into the rotary furnace and stirred uniformly; S5: the aluminum water is poured out again and cooled to obtain slag ingots; S6: the retaining ash slag in the rotary furnace is transferred into an ash cooling barrel for cooling; S7: a ball mill in the ash cooling barrel is opened; and S8: a magnetic separator is opened, and materials in the ash cooling barrel are classified and collected according to fine ash, the intermediate aluminum particles and large pieces of aluminum slag.

Description

technical field [0001] The invention belongs to the technical field of metal smelting, in particular to an aluminum ash treatment method. Background technique [0002] Aluminum ash, also known as aluminum slag, is the main by-product of the aluminum industry. It is produced in the process of melting aluminum. It is mainly the refining agent in the smelting process and the slagging of some impure mixed metals, as well as a certain amount of aluminum. [0003] Aluminum ash is mainly composed of simple metal aluminum, aluminum oxide, aluminum nitride, silicon and silicon oxide, sodium chloride and fluoride, among which the content of aluminum element is as high as 40%, and there are also fluorine, chlorine, sodium, silicon, etc. Elements have great recycling value. In the past, people regarded aluminum slag as waste and dumped it, which not only caused a waste of aluminum resources but also brought environmental problems, especially elements such as fluorine had a greater impa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B7/04C22B21/00C22B1/00
CPCC22B1/005C22B7/001C22B7/04C22B21/0092Y02P10/20
Inventor 黄亮秦庆伟马靓张长建余俊
Owner 湖北新金洋资源股份公司
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