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Refining mixing system used in solvent extraction refining wet phosphoric acid process

A wet-process phosphoric acid and mixing system technology, applied in the direction of phosphorus compounds, chemical instruments and methods, inorganic chemistry, etc., can solve the problems of poor mixing effect and low uniformity, achieve high uniformity, improve mixing effect, and eliminate fluid stagnation The effect of flow area

Active Publication Date: 2018-04-20
HUAZHONG NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the defects and problems of many fluid stagnation areas, poor mixing effect and low uniformity existing in the prior art, and provide a kind of fluid stagnation area with few fluid stagnation areas and good mixing effect. The refined mixing system used in the process of refining wet-process phosphoric acid by solvent extraction with high uniformity

Method used

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  • Refining mixing system used in solvent extraction refining wet phosphoric acid process
  • Refining mixing system used in solvent extraction refining wet phosphoric acid process
  • Refining mixing system used in solvent extraction refining wet phosphoric acid process

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Effect test

Embodiment 1

[0124] see Figure 1 to Figure 14 , during use, first put the raw materials to be mixed into the A-type outer container A1, the raw materials can be a combination of powder and liquid, or a combination of liquid and liquid (only the types of raw materials are limited, not limited to two kinds of raw materials) ), then start the top outer container A11, upper middle outer container A12, middle lower outer container A13, and bottom outer container A14 to rotate, and at the same time start the A-type agitator A2 to rotate to stir and mix the mixture to obtain a primary mixture, and then The primary mixture is put into the B-type outer container B1 through the transfer station for secondary stirring and mixing. At this time, new liquid or powder raw materials can be added according to the application requirements, and then the rotating pipe seat B4 is started to flow into the B-type outer container B1. The swirling airflow is ejected, and at the same time, the B-type agitator B2 i...

Embodiment 2

[0126] Basic content is the same as embodiment 1, the difference is:

[0127] When the A-type mixing device or the B-type mixing device is stirring and mixing, a heating element can be installed in the two to heat the mixed raw materials, so that the mixing is under a certain temperature condition. The specific heating element type selection, The layout design depends on the mixing temperature required by the application.

Embodiment 3

[0129] Basic content is the same as embodiment 1, the difference is:

[0130] When the A-type mixing device is stirring and mixing, it can inject swirling airflow to its inside through the air inlet pipe A17 provided on the A-type outer container A1 to enhance the mixing effect. All the air intake equipment disclosed can also be the air guide column B5 structure adopted in the B-type mixing device.

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Abstract

A refining and mixing system adopted in a wet-process phosphoric acid refining process by a solvent extraction method is used for liquid-liquid mixing or liquid-powder mixing and comprises an A type mixing device, a transfer station and a B type mixing device which communicate with each other successively, wherein the A type mixing device has functions including that an external containing body can rotate, a heating body can be arranged and a rotating airflow can be generated, and a stirrer has three functions of body stirring, airflow stirring and enhanced stirring; the B type mixing device has functions including that an external containing body can generate a rotating airflow, a heating body can be arranged and a module can be replaced, and a stirrer has four functions of body stirring, airflow stirring, enhanced stirring, and midway addition of raw materials. The system can eliminate a fluid stagnation zone, can heat a mixed object, has the advantages of good mixing performance and high uniformity, can achieve rotation of an external container, strong lubrication effect, various stirring functions and midway addition, and has a wide range of application.

Description

technical field [0001] The invention relates to a liquid-liquid or powder-liquid refining mixing device, in particular to a refining mixing system used in the process of refining wet-process phosphoric acid by solvent extraction, which is particularly suitable for eliminating fluid stagnation areas, enhancing the mixing effect, and improving the mixing efficiency of the mixture. Evenness. Background technique [0002] In the overall process of refining wet-process phosphoric acid by solvent extraction, whether it is the operation steps of the extraction refining process itself, or the upstream and downstream supporting processes of the overall process, such as pretreatment process, washing process, or even the recycling process of intermediate products , such as the preparation and recovery of monoammonium phosphate, barium sulfate, potassium dihydrogen phosphate, etc., will involve the mixing of liquid or powder. The prior art generally uses stirring paddles for stirring an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B25/46C01B25/234
CPCC01B25/234C01B25/46
Inventor 侯炎学吴杰
Owner HUAZHONG NORMAL UNIV
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