Micron-scale high-hardness powder cleaning and separation system and method

Abstract

The invention discloses a micron-level high-hardness powder cleaning and separation system, which comprises a membrane tank, a material circulation mechanism, an aeration mechanism, a ceramic flat membrane separation mechanism and a water supply mechanism. Simultaneously, the invention also discloses a method for cleaning and separating micron-level high-hardness powders, which adopts chaotic mixing and friction cleaning of bubbles, and separates waste liquid with a ceramic flat membrane. The invention provides a micron-level high-hardness powder cleaning and separation system. The system adopts disordered mixing and friction cleaning of bubbles, ceramic flat membrane to separate waste liquid, aeration mechanism and material circulation mechanism to prevent sedimentation, and can produce high-purity and low-conductivity powder. High rate of micron-sized powder, and the system is not clogged and runs smoothly. The present invention also provides a method for cleaning and separating micron-level high-hardness powders, which uses aeration to replace the traditional stirring method, through which the micron-level high-hardness powders and pure water are effectively mixed and tumbled in disorder to achieve more uniform friction cleaning The cleaning effect is better, and the service life of the ceramic flat membrane is greatly extended.

Description

technical field [0001] The invention relates to the technical field of powder processing, in particular to a system and method for cleaning and separating micron-level high-hardness powder. Background technique [0002] Micron-sized powder refers to tiny solid particles with a size of about 0.5 microns to 10 microns, which are widely used in mechanical, thermal, electromagnetic, biomedical, optical and other fields. At present, representative inorganic powder materials include alumina, zirconia, silicon nitride, silicon carbide, silicon dioxide, aluminum nitride, corundum, etc. These high-hardness micron-sized powders have a series of specific optical, Thermal, electrical and magnetic properties. However, the above-mentioned inorganic powder materials generally have high electrical conductivity and magnetism due to the change of particle size, and certain agglomeration phenomenon will occur, which cannot meet the requirements of high purity, low electrical conductivity, and...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, there are a small number of tubular ceramic membranes used for the treatment of inorganic powder materials, but the effect is not ideal

The tubular ceramic membrane pumps the slurry into the flow channels of several small holes in the middle of the membrane tube to form a cross-flow filtration under pressure. Or the filtration area of ​​the membrane filtration surface is too small, only a small amount of waste water can be squeezed out from the membrane tube, and when the concentration of the mixed slurry increases, the material will not flow, which will directly block the flow channel of the membrane tube, causing the whole equipment to be paralyzed , the membrane tube is scrapped, and what is more serious is that once the material stagnates and does not flow, it will settle rapidly, making it difficult to remove the material deposited in the pipeline, water pump, and material box

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