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Alumina recovery system and method

A recovery system, alumina technology, applied in chemical instruments and methods, aluminate/alumina/aluminum hydroxide purification, inorganic chemistry, etc.

Pending Publication Date: 2021-05-18
安溪县世荣有色金属有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, there is no technical solution for recycling aluminum ash, so it is necessary to solve this problem

Method used

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  • Alumina recovery system and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] Such as Figure 1 to Figure 8 As shown, the alumina recovery system includes a ball mill 1, a vibrating screen 2, an agitator 3, a sealed conveyor belt 4 and a dryer 5; the vibrating screen 2 is placed at one end of the ball mill 1, and the vibrating screen 2 The discharge end is communicated with the feed end of the vibrating screen 2, and the discharge end of the vibrating screen 2 is communicated with the feed end of the agitator 3; the sealing conveyor belt 4 is placed in the agitator 3 At one end, the discharge end of the agitator 3 is in sealing communication with the feeding end of the sealing conveyor belt 4 , and the output end of the sealing conveyor belt 4 is in sealing communication with the feeding end of the dryer 5 .

[0058] Add aluminum-containing materials to the ball mill 1, use the ball mill 1 to crush the aluminum-containing materials, and import the obtained aluminum-containing crushed materials into the vibrating screen 2; the vibrating screen 2 p...

Embodiment 2

[0089] Such as figure 1 Shown, a kind of alumina recycling method comprises the following steps:

[0090] Add aluminum-containing slag and aluminum ash mixture materials to the ball mill 1, use the ball mill 1 to pulverize the aluminum-containing slag and aluminum ash mixture materials, and import the obtained aluminum-containing pulverized materials into the vibrating screen 2; Vibration screening to obtain metal aluminum and aluminum ash, and recycling of metal aluminum;

[0091] Then aluminum ash is introduced into the agitator 3, and water is added to the agitator 3 at the same time, and the aluminum ash and water are stirred and mixed to obtain alumina and ammonia; the alumina and ammonia are introduced into the sealing conveyor belt 4, and the sealing conveyor belt The ammonia gas in 4 is introduced into the filter 7 by the fan 6 for filtering, and the filtered ammonia gas enters the heat exchanger 8, and the ammonia gas is sprayed with pure water at the same time, so t...

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Abstract

The invention relates to an alumina recovery system and method. The alumina recovery system comprises a ball mill, a vibrating screen, a stirrer, a sealed conveying belt and a dryer; the vibrating screen is arranged at one end of the ball mill, the discharging end of the vibrating screen is communicated with the feeding end of the vibrating screen, and the discharging end of the vibrating screen is communicated with the feeding end of the stirrer; the sealed conveying belt is arranged at one end of the stirrer, the discharging end of the stirrer is communicated with the feeding end of the sealed conveying belt in a sealed mode, and the output end of the sealed conveying belt is communicated with the feeding end of the dryer in a sealed mode. Compared with the prior art, the method has the advantages that the material containing aluminum slag and aluminum ash mixture is treated, metal aluminum, aluminum oxide and ammonia gas are recycled, the effective utilization rate of the aluminum slag and the aluminum ash is increased, the harm of the aluminum ash is solved, and the environmental economy of China is improved; the technology is simple and the cost is low.

Description

technical field [0001] The invention relates to the technical field of aluminum ash recovery, in particular to an alumina recovery system and method. Background technique [0002] The recycling of nonferrous metals in the prior art is mainly aimed at solid wastes containing ferrous metals such as copper slag, iron slag, aluminum slag, zinc slag, aluminum ash, copper ash, etc., among which aluminum ash is an important development product. [0003] Aluminum ash is a by-product of the aluminum industry. As the largest aluminum producer in the world, my country produces a huge amount of aluminum ash every year. According to the production stage of aluminum ash, the source of aluminum ash is mainly divided into production stage, consumption stage and recycling stage. In the production stage, the electrolytic casting process is mainly used to melt the molten aluminum to obtain aluminum ingots and the dross produced, and the dross removed from the furnace is aluminum ash; in the co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01F7/46C01C1/02C22B7/00C22B7/04C22B21/00
CPCC01F7/46C01C1/02C01C1/022C22B7/04C22B7/005C22B7/006C22B21/0007C22B21/0069C22B21/0023C01P2006/80
Inventor 李炳荣
Owner 安溪县世荣有色金属有限公司
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