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A drying device and method for improving the dispersibility of ultrafine powder

A technology of ultra-fine powder and drying device, which is applied in the direction of drying gas arrangement, preliminary treatment to promote the drying of solid materials, drying room/container, etc., and can solve the problems that powder cannot be fully dispersed and agglomerated

Active Publication Date: 2021-03-05
LUOYANG ZHONGCHAO NEW MATERIAL SHARES CO LTD
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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 provide a drying device that improves the dispersibility of ultrafine powders, so as to solve the problem that the powders cannot be fully dispersed and agglomerated during drying.

Method used

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  • A drying device and method for improving the dispersibility of ultrafine powder
  • A drying device and method for improving the dispersibility of ultrafine powder
  • A drying device and method for improving the dispersibility of ultrafine powder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] Add 250 kg of calcium carbonate filter cake from the feed port 15 of the crushing cylinder 10, and after stirring for 30 minutes, the discharge port of the drying cylinder 1 starts to discharge, and the samples are taken every 50 kg, and a total of 5 samples are taken for testing. Test, the results are as follows:

[0056] Table I:

[0057]

Embodiment 2

[0060] 250 kilograms of magnesium hydroxide filter cakes are added from the feed port 15 of the crushing cylinder 10, and after 30 minutes of stirring, the discharge port of the drying cylinder 1 starts to discharge, and the samples are taken every 50 kilograms, and a total of 5 samples are taken. Test, the results are as follows:

[0061] Table II:

[0062]

Embodiment 3

[0064] Add 250 kilograms of aluminum hydroxide filter cake from the feed port 15 of the crushing cylinder 10, and after 30 minutes of stirring, the discharge port of the drying cylinder 1 starts to discharge. Samples are taken every 50 kilograms, and a total of 5 samples are taken Tested and got the following results:

[0065] Table three:

[0066]

[0067] Combining with the specific examples above, it can be seen that the drying effect of the present invention is good, the material can be dried and fully dispersed in a short time, and the material is heated evenly during the drying process, the drying is thorough, the dispersion efficiency is high, the quality is good, and the dispersion is uniform , no reunion phenomenon.

[0068] When using the device of this scheme to dry and disperse the powder filter cake, after the powder slurry is separated by the filter press system, the filter cake is cut into small pieces during the conveying process of the crushing cylinder, ...

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Abstract

The invention relates to the field of powder drying, and discloses a drying device and method for improving the dispersibility of ultrafine powder, wherein the drying device for improving the dispersibility of ultrafine powder includes a vertical A drying cylinder (1) arranged vertically, a stirring mechanism (2) arranged in the drying cylinder (1), a feed pipe (3) connected to the top of the drying cylinder (1), an air inlet pipe (4) and Exhaust pipe (5). Through the above technical scheme, the filter cake or the crushed material is stirred and dispersed by stirring, and the kinetic energy generated by stirring is used as the energy for heating, drying, crushing and dispersing, which can avoid the hard agglomeration of powder caused by rapid evaporation of water, and does not need to be installed The heating device is energy-saving and environmentally friendly, and the material is heated evenly and dried thoroughly. It is suitable for a variety of powder materials, with high dispersion efficiency, good quality, uniform dispersion, and no agglomeration.

Description

technical field [0001] The invention relates to the field of powder drying, in particular to a drying device and method for improving the dispersibility of ultrafine powder. Background technique [0002] Ultrafine powder is a kind of tiny solid particles, which belong to the transition zone between microscopic particles and macroscopic objects, and have a series of excellent physical, chemical, surface and interface properties. In recent years, a large number of new functional materials have been made by using ultrafine powder, which has greatly enhanced the performance of the material. Ultrafine powder has been widely used in various industries. [0003] As the size of the ultrafine powder decreases, the specific surface area of ​​the particles increases, the surface energy increases, the surface effect and the quantum size effect are enhanced, and the difference in the structure of the inner and outer surfaces of the powder leads to the generation of excess energy, that is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F26B1/00F26B3/08F26B21/00F26B25/04F26B25/08B02C21/00B02C18/14B02C18/24B02C17/16
CPCB02C17/163B02C18/14B02C18/24B02C21/00F26B1/005F26B3/08F26B21/004F26B25/04F26B25/08
Inventor 裴广斌吴建华闫启侯新伟
Owner LUOYANG ZHONGCHAO NEW MATERIAL SHARES CO LTD
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