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Aluminum electrolysis waste groove lining dump leaching treatment system

A treatment system and waste tank lining technology, applied in the direction of solid waste removal, etc., can solve the problems of environmental secondary pollution, complex process, large investment, etc., achieve efficient and harmless treatment, increase enterprise economic benefits, and carbon graphitization high degree of effect

Pending Publication Date: 2018-11-30
YUNNAN RUNXIN ALUMINUM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing waste tank lining treatment method has a long process flow, complicated process, large investment, and causes secondary pollution to the environment

Method used

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  • Aluminum electrolysis waste groove lining dump leaching treatment system
  • Aluminum electrolysis waste groove lining dump leaching treatment system
  • Aluminum electrolysis waste groove lining dump leaching treatment system

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Embodiment Construction

[0019] Such as figure 1 , figure 2 The heap leaching treatment system for aluminum electrolytic waste tank lining shown includes tail gas treatment system I, preleaching system II, leaching system III, liquid storage system IV, oxidative cyanide removal and carbon neutralization system V, and preleaching solution evaporation and crystallization system VI. To express more clearly, figure 1 Part III of the leaching system is not shown figure 2 The factory buildings and cranes in it. figure 2 The preleaching system II, leaching system III, and liquid storage system IV in the diagram schematically show the internal structure of the dissection.

[0020] Such as figure 1 , image 3 As shown, the tail gas treatment system 1 includes a primary water scrubber 1, a secondary water scrubber 2, a primary sulfuric acid scrubber 3, and a secondary sulfuric acid scrubber 4 that are connected in sequence outside the plant. It mainly absorbs the ammonia gas (NH 3 ), through a two-st...

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PUM

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Abstract

An aluminum electrolysis waste groove lining dump leaching treatment system comprises a tail gas treatment system (I), a pre-leaching system (II), a leaching system (III), a liquid storage system (IV), an oxidization cyanogen removing and carbon decomposition-neutralizing system (V) and a pre-leaching liquid evaporation crystallization system (VI). By means of the aluminum electrolysis waste groove lining dump leaching treatment system, valuable components of waste groove linings can be effectively separated, the waste groove linings are subjected to harmless treatment, efficient comprehensiverecycling is achieved, and energy saving and environment friendliness are achieved.

Description

technical field [0001] The invention belongs to the technical field of aluminum electrolysis waste tank lining treatment system. Background technique [0002] Waste tank lining is in the process of aluminum electrolysis, due to the penetration and corrosion of the tank lining by high-temperature electrolyte, the lining structure of the aluminum electrolytic tank is deformed, cracked, etc., and the high-temperature aluminum liquid and electrolyte penetrate into the tank from these deformed and cracked cracks Lining, resulting in the failure of normal production of the electrolytic cell and the repair of the cell. Due to the electrochemical reaction of the tank lining with the electrolyte at high temperature for a long time, a large amount of fluoride and a certain amount of harmful substances are adsorbed, and some toxic substances are also generated at the same time, which becomes a factor that causes harm to the environment during storage. Generally, new aluminum electroly...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09B3/00B09B5/00
CPCB09B3/00B09B5/00
Inventor 杨万章杨大锦梁可张燕陈本松黄志华李云生杨金星江俊
Owner YUNNAN RUNXIN ALUMINUM