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Method and device for preparing high-purity and high-activity aluminium shots

A high-activity aluminum bean technology, applied in the field of aluminum bean preparation, can solve the problems of reducing activity and achieve the effects of low production cost, guaranteed purity and simple equipment

Inactive Publication Date: 2013-07-31
宁夏新和新材科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of rolling aluminum ingots into aluminum wires, due to the strong affinity between aluminum and oxygen, as the diameter of aluminum wires becomes thinner, the surface of aluminum wires is easily oxidized to form stable oxides, thereby reducing the its activity

Method used

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  • Method and device for preparing high-purity and high-activity aluminium shots
  • Method and device for preparing high-purity and high-activity aluminium shots

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] like figure 1 As shown, the aluminum liquid melted in the aluminum melting furnace with a temperature of about 780°C is introduced through the diversion groove 6 into the aluminum bean preparation mold 1 with holes 2 uniformly distributed at the bottom, and the diameter of the aluminum liquid on the aluminum bean preparation mold is The 0.2mm hole falls into the cooling rotating disk 3 installed at the lower part of the aluminum bean preparation mold. The high-temperature aluminum liquid is rapidly cooled by the cooling water installed in the cooling rotating disk. The cooling speed is 1000 degrees per minute, and the rotating disk is cooled at the same time Rotate at a speed of 2 rpm to make the high-temperature aluminum liquid form as figure 2 The shown aluminum beans have an average particle size of 10mm and a height-to-diameter ratio of about 1:1.5. After collecting the aluminum beans in the cooling rotating disk, they are finished aluminum beans; The distance bet...

Embodiment 2

[0023] like figure 1 As shown, the molten aluminum with a temperature of about 820°C after melting in the aluminum melting furnace is introduced into the aluminum bean preparation mold 1 with holes 2 evenly distributed at the bottom through the diversion groove 6, and the diameter of the aluminum liquid on the aluminum bean preparation mold through the aluminum bean is The 0.4mm hole falls into the cooling rotating disk 3 installed at the lower part of the aluminum bean preparation mold. The distance between the bottom surface of the aluminum bean preparation mold and the cooling liquid surface in the cooling rotating disk is 100mm; the high temperature aluminum liquid passes through the cooling rotating disk The water used for cooling in the cooling chamber is rapidly cooled, the cooling speed is 600 degrees per minute, and the cooling rotating disk is rotated at a speed of 4 revolutions per minute, so that the high temperature aluminum liquid is formed as figure 2 The shown...

Embodiment 3

[0025] like figure 1 As shown, the molten aluminum with a temperature of about 860°C after melting in the aluminum melting furnace is introduced into the aluminum bean preparation mold 1 with holes 2 evenly distributed at the bottom through the diversion groove 6, and the diameter of the aluminum liquid on the aluminum bean preparation mold is The 0.5mm hole falls into the cooling rotating disk 3 installed at the lower part of the aluminum bean preparation mold. The distance between the bottom surface of the aluminum bean preparation mold and the cooling liquid surface in the cooling rotating disk is 200mm; the high temperature aluminum liquid passes through the cooling rotating disk The water used for cooling in the cooling chamber is rapidly cooled at a cooling rate of 100 degrees per minute, while the cooling rotating disk rotates at a speed of 3 revolutions per minute, so that the high-temperature aluminum liquid forms as figure 2 The aluminum beans shown have an average ...

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Abstract

The invention relates to a method and device for preparing high-purity and high-activity aluminium shots. The method comprises the steps of the fusion of an aluminium ingot, the preparation of aluminium shots, and the collection of the aluminium shots. The device for preparing the high-purity and high-activity aluminium shots comprises an aluminum melting furnace and a diversion trench for connecting the aluminum melting furnace with the device for preparing the high-purity and high-activity aluminium shots, and is characterized in that a liquid outlet of the diversion trench is mounted at the upper part of an aluminium shot preparation mould; uniformly distributed holes are formed in the bottom part of the aluminium shots preparation mould; a rotatable cooling rotary disc is mounted at the lower part of the aluminium shots preparation mould; and the cooling rotary disc is filled with cooling liquid. The method and device have the characteristics of simple process, high production efficiency, short process chain of the aluminium shots, simple device , low production cost, effectively guaranteed purity of the aluminium shots, and the like.

Description

technical field [0001] The invention relates to a method and equipment for preparing aluminum beans, in particular to a method and equipment for preparing high-purity and high-activity aluminum beans. Background technique [0002] Aluminum beans refer to aluminum granule products in the shape of chess pieces. As an efficient metallurgical reducing agent, high-purity and high-activity aluminum beans are widely used in the aluminothermic reduction of high-purity rare metal oxides, such as the preparation of high-purity tantalum, niobium, titanium and other metals. The particle size and activity of aluminum beans are important parameters to determine the effect of reduction and removal of impurities in the fine metallurgy process. The smaller the average particle size and the higher the surface activity, the more favorable the reduction reaction is, the better the impurity removal effect is, and finally high-purity active metals can be obtained. [0003] At present, the metho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D23/00B22F9/08
Inventor 舒永春赵皓
Owner 宁夏新和新材科技有限公司
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