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Method for aluminum ash treatment and recycling use

A technology of aluminum ash and aluminum liquid, which is applied in the field of aluminum ash treatment and recycling, can solve the problems of increasing the dust removal system and waste multiple utilization processes, resource waste costs, environmental pollution, etc., achieving significant economic benefits, improving production efficiency, The effect of avoiding environmental pollution

Inactive Publication Date: 2013-06-19
JIAOZUO WANFANG ALUMINUM MANUFACTURING CO LTD
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Problems solved by technology

[0005] The present invention aims at the problems that dust and smog will be produced in the aluminum ash treatment in the past, which will cause environmental pollution, and the waste left over from the insufficient recycling of aluminum ash will cause resource waste, cost increase and environmental pollution. The invention provides a method for aluminum ash treatment and recycling method, effectively solve the problems of environmental pollution, resource waste and cost increase by increasing the dust removal system and the multiple utilization process of waste materials

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  • Method for aluminum ash treatment and recycling use

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Embodiment Construction

[0017] In order to make the purpose, technical solutions and beneficial effects of the present invention more clear, the implementation manners of the present invention will be further described in detail below.

[0018] A method for aluminum ash treatment and recycling, the method comprises the following steps:

[0019] a. In a dust-proof and airtight environment, pour the hot aluminum ash extracted from the melting and casting furnace into the reaction kettle of the molten aluminum recovery machine, add slagging agent into the reaction kettle, and start the stirring of the molten aluminum recovery machine Blades, after fully stirring, send the recycled aluminum into the melting and casting furnace, leaving waste slag;

[0020] b. In a dust-proof and airtight environment, send the waste slag in step a to the cold slag crusher for crushing, and send the crushed cold slag to the cold ash storage yard;

[0021] c. In a dust-proof environment, the cold ash in the cold ash storag...

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Abstract

The invention discloses a method for aluminum ash treatment and recycling use. Through combination of an aluminum ash heat recovery process and an aluminum ash cold recovery process in a current production system and utilization of a dedusting system and multiple waste use processes, the method effectively solves the problem that environmental pollution, resource wasting and a cost are increased, realizes recycling use of treated alumina and fluoride salts, and has obvious economic benefits.

Description

technical field [0001] The invention relates to a method for processing and recycling aluminum ash, and relates to the field of chemical industry. Background technique [0002] In addition to aluminum, aluminum ash also contains Al 2 o 3 , fluoride salts, CaO and SiO 2 The aluminum in aluminum ash can be recycled. If other components are thrown away, it will not only increase the cost, but also cause serious pollution to the environment. Therefore need a kind of process technology of aluminum ash processing and recycling, the aluminum in the aluminum ash is recovered and remelted into ingots, the Al 2 o 3 and fluoride salt, etc. are recycled and added to the electrolytic cell for recycling, and can also be made into anode steel claw protection rings to protect the steel claws and recycle them. [0003] At present, domestic aluminum ash treatment methods can be roughly divided into two categories: heat treatment recovery method and cold treatment recovery method. The h...

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Application Information

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IPC IPC(8): C22B7/00C22B21/00C25C3/06
Inventor 李建伟乔桂玲王绍鹏聂小丹邹南
Owner JIAOZUO WANFANG ALUMINUM MANUFACTURING CO LTD
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