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Resourceful treatment system and treatment method of aluminum ashes

A treatment system and treatment method technology, which is applied in the aluminum ash resource treatment system and treatment field, can solve the problems of destructive impact on the environment, large waste of metal aluminum, and low recovery rate, so as to reduce waste discharge and solid waste discharge , The effect of cleaning the production process

Active Publication Date: 2014-06-11
ZHENGZHOU JINGWEI TECH & IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the methods commonly used to extract metal aluminum from aluminum ash mainly include pressing method, rotary kiln method, cold ash pulverization and separation method, artificial frying ash, etc. These methods can recover a part of metal aluminum in aluminum ash, but the recovery rate is low. The waste of metal aluminum is large, and the remaining aluminum ash has to be processed by other methods. The whole process takes a long time, the process is complicated, requires a lot of labor, and has a certain destructive impact on the environment.

Method used

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  • Resourceful treatment system and treatment method of aluminum ashes

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Experimental program
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Effect test

Embodiment 1

[0023] Embodiment 1: a kind of aluminum ash recycling processing system, such as figure 1 As shown, it includes an aluminum ash separation unit, a batching unit, a molding unit and a baking unit. The batching unit includes a low-aluminum aluminum ash silo 1, a binder silo 2 and a stirring silo 3. The low-aluminum aluminum ash The bin 1, the binder bin 2 and the mixing bin 3 are all provided with a weighing device and a discharge valve, and the outlets of the low-aluminum aluminum ash bin 1 and the adhesive bin 2 are respectively connected to the The feeding port of the stirring silo 3 is correspondingly connected, and a stirring device is arranged in the stirring silo 3; the aluminum ash separation unit includes a hot aluminum ash separator 4 and a feeding mechanism, and the hot aluminum ash separator 4 The ash discharge port communicates with the low-aluminum aluminum ash silo 1 through the feeding mechanism; end is correspondingly communicated with the discharge port of th...

Embodiment 2

[0028] Embodiment 2: An aluminum ash recycling processing method using the aluminum ash recycling processing system, comprising the following steps:

[0029](1) Add the hot aluminum ash cleaned from the melting and casting furnace to the hot aluminum ash separator to obtain separated metal aluminum and low-aluminum aluminum ash, and the obtained low-aluminum aluminum ash is transported to the low-aluminum aluminum ash Ash silo;

[0030] (2) Open the discharge valves of the low-aluminum aluminum ash silo and the binder silo, and add the low-aluminum aluminum ash and the binder into the stirring silo at a mass ratio of 10:1, Mix and stir evenly; the binder is composed of aluminum stearate, high manganese cement and quicklime, wherein the mass percentage of each component is: aluminum stearate 40%, high manganese cement 40%, quicklime 20%;

[0031] (3) Start the feeding mechanism, transport the mixed material obtained in step (2) to the pressing and demoulding mechanism of the m...

Embodiment 3

[0034] Example 3: The difference from Example 2 is that in step (2), the low-aluminum aluminum ash and the binder are mixed in a mass ratio of 10:2; the mass percentage of each component of the binder is: stearin Acid aluminum 32%, high manganese cement 45%, quicklime 23%.

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Abstract

The invention discloses resourceful treatment system and treatment method of aluminum ashes, and aims at solving the technical problems that the aluminum ashes in the prior art are low in recovery rate, complicated in process, and easy to pollute environment. The system comprises an aluminum ash separation unit, a burdening unit, a molding unit and a baking unit. The method comprises the following steps: adding hot aluminum ashes to a hot aluminum ash separator; separating out metallic aluminum and low-aluminum ashes; evenly mixing and stirring the obtained low-aluminum ashes and a binder according to the mass ratio of 10:1 to 10:2; pressing the mixed materials into an anode steel claw protection ring blank and demolding; sintering and sizing the obtained anode steel claw protection ring blank and then obtaining an anode steel claw protection ring. By adopting the resourceful treatment system and treatment method, integrated treatment of the aluminum ashes can be achieved, the treating processes of the aluminum ashes are simplified, the resourceful treatment system and treatment method are simple and convenient to operate, energy-saving and environmentally friendly, waste emission can be greatly reduced, regeneration and cyclic utilization of resources are fully achieved, and the problem of innocent treatment of the aluminum ashes is solved.

Description

technical field [0001] The invention relates to the technical field of solid waste treatment in the production process of electrolytic aluminum, in particular to an aluminum ash recycling treatment system and treatment method. Background technique [0002] Electrolytic aluminum belongs to the important light non-ferrous metal industry. As an important basic industrial raw material, aluminum is widely used in the national economy occupies a very important position. Aluminum is obtained by the Hall-Eru cryolite-alumina molten salt electrolysis method, that is, the fluoride salt mainly composed of cryolite is used as Flux , Alumina is a molten substance to form a multiphase electrolyte system , with the carbon body as the anode and the aluminum liquid as the cathode, after passing through a strong direct current, the electrochemical reaction is carried out on the two poles in the electrolytic cell at 950 ° C to 970 ° C. When the molten aluminum is smelted in the casting fu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25C3/12C25C3/22C25C3/06
Inventor 王旭东曹国法朱振国袁志强和清霖冯晓强曹志伟刘威
Owner ZHENGZHOU JINGWEI TECH & IND
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