Stirring-free flat bottom seed precipitation tank

A non-stirring, trough-splitting technology, applied in the field of seed troughing, can solve the problems of high manufacturing cost, unfavorable grain growth, poor stirring effect, etc.

Active Publication Date: 2013-08-21
SHENYANG ALUMINIUM MAGNESIUM INSTITUTE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

From the comparison between the two, mechanical stirring has lower energy consumption and good stirring effect, which is beneficial to the growth of aluminum hydroxide grains, but the manufacturing cost of the stirring device is relatively high, and it is mostly used in flat-bottomed tanks; the structure of the compressed air stirring device is simple, but the stirring The effect is poor, it is not conducive to the growth of grains, and the energy consumption is high, and it is mostly used in cone bottom grooves
Regardless of mechanical stirring or compressed air stirring, additional power is required

Method used

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  • Stirring-free flat bottom seed precipitation tank
  • Stirring-free flat bottom seed precipitation tank
  • Stirring-free flat bottom seed precipitation tank

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Embodiment Construction

[0020] The present invention will be further described in detail below in conjunction with the drawings.

[0021] As shown in the figure, the present invention has a non-stirring flat-bottom seed dividing tank, including a seed dividing tank body 1. The seed dividing tank body 1 is a cylindrical flat-bottomed tank body, and the top of the seed dividing tank body 1 is provided with a ring-shaped distributor 2. A feed pipe 5 is provided on the circular feeder 2 and a circular hole 6 is provided at the lower end of the circular feeder 2, and a feed pipe 4 and a feed pipe 4 are provided in the seed tank body 1 The bottom of the bottom is provided with a suction pipe head 3 for the lifting pipe. The circular distributor 2 is a circular steel pipe. The diameter of the circular distributor 2 is 1 / 2 to 2 / 3 of the tank diameter. The circular distributor 2 Consists of one or more concentric pipes. When the circular distributor 2 is composed of multiple concentric pipes, the concentric pipe...

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Abstract

The invention relates to a seed precipitation tank, in particular to a stirring-free flat bottom seed precipitation tank for precipitation of aluminum hydroxide crystals from a sodium aluminate solution. The seed precipitation tank includes a seed precipitation tank body, the top of which is provided with an annular distributor. The annular distributor is provided with a feed pipe, and the lower end of the annular distributor is equipped with round holes. A material lifting pipe is disposed in the seed precipitation tank body, and the bottom of the material lifting pipe is equipped with a material lifting pipe suction head. According to the invention, slurry mixing by a stirring-free device is realized, and the slurry flow is close to the ideal plunger flow, therefore, the energy consumption is greatly reduced, and the decomposition rate is improved.

Description

Technical field [0001] The invention relates to a seeding tank, in particular to a non-stirring flat-bottomed seeding tank for precipitation of aluminum hydroxide crystals from a sodium aluminate solution. Background technique [0002] At this stage, in the alumina hydrometallurgical production process, in order to ensure no precipitation and increase the decomposition rate, the seed tanks of the seed decomposition section are equipped with stirring devices. The stirring devices usually have two stirring methods to choose from: mechanical stirring and Compressed air stirring. From the comparison of the two, mechanical stirring has low energy consumption and good stirring effect, which is conducive to the growth of aluminum hydroxide crystal grains. However, the manufacturing cost of the stirring device is relatively high, and it is mostly used in flat-bottom tanks; the compressed air stirring device has a simple structure, but stirring The effect is poor, it is not conducive to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01F7/14
Inventor 张超单勇刘晨
Owner SHENYANG ALUMINIUM MAGNESIUM INSTITUTE
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