Aluminum ash recovery process

An aluminum ash and process technology, applied in the field of aluminum ash recycling process, can solve the problems of impact, environmental problems, waste of aluminum resources, etc., and achieve the effects of reducing environmental pollution, improving recovery rate, and reducing pollution

Active Publication Date: 2019-02-12
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 recovery process
  • Aluminum ash recovery process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] S1: Using crushed water hyacinth powder as carbon source and corn flour as nitrogen source, Streptococcus mutans ATCC25175 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 st...

Embodiment 2

[0038] S1: Using crushed water hyacinth powder as carbon source and corn flour as nitrogen source, Streptococcus mutans ATCC25175 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, d...

Embodiment 3

[0047] S1: Using crushed water hyacinth powder as carbon source and corn flour as nitrogen source, Streptococcus mutans ATCC25175 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...

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Abstract

The invention relates to the technical field of metal smelting, in particular to an aluminum ash recovery process. Through the aluminum ash recovery process, the content of fluorine elements in recycled aluminum materials and final waste can be remarkably reduced, and the content of aluminum in the recycled materials is increased. The aluminum ash recovery process mainly comprises the technological steps of S1, culturing streptococcus mutans with milled water hyacinth powder as a carbon source; S2, pouring aluminum ash into a culture pond containing a large quantity of streptococcus mutans into a culture pond and conducting treatment on the aluminum ash through the streptococcus mutans after even stirring; S3, fishing out and draining off the treated aluminum ash, and feeding the aluminumash into a rotary furnace for ash frying operation; S4, pouring out molten aluminum in the rotary furnace, adding Meme aluminum to the molten aluminum to be evenly stirred; S5, pouring out the moltenaluminum again and cooling the molten aluminum to obtain a slag ingot; S6, transferring ash slag left in the rotary furnace into an ash cooling barrel to be cooled; S7, starting a ball mill in the ashcooling barrel; and S8, starting a magnetic separator and classifying and collecting materials in the ash cooling barrel according to the types of fine ash, the Meme aluminum and massive aluminum slag.

Description

technical field [0001] The invention belongs to the technical field of metal smelting, in particular to an aluminum ash recovery process. 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): C22B7/04C22B1/00C22B3/18C22B21/00
CPCC22B1/005C22B3/18C22B7/001C22B7/04C22B21/0007C22B21/0069Y02P10/20
Inventor 周毅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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