Ball milling test device for preparation of fine particles based on cavitation jet coupled collision impact

Abstract

A superfine particle preparation ball-milling testing device based on cavitation jet flow coupled colliding and impacting comprises a testing ball mill system, a cavitation jet flow system and an overflow separation system. The cavitation jet flow system comprises a cavitation nozzle, a high-pressure pipe, a high-pressure pipeline, a water tank and an impurity pump. The cavitation nozzle is fixedly connected with the high-pressure pipe, the high-pressure pipe is located in an inner cavity of a cylinder, the high-pressure pipe penetrates through the cylinder to be installed at one end of the high-pressure pipeline in a sealed manner, and the impurity pump and the water tank are connected with the other end of the high-pressure pipeline. The overflow separation system comprises an overflow pipe, a filter pipe, a sieve pipe and a particle collection tank. The filter pipe is located in the inner cavity of the cylinder, the filter pipe penetrates through the cylinder to be in sealed connection with one end of the overflow pipe, and the other end of the overflow pipe is located above the particle collection tank. The particle collection tank communicates with the water tank through the sieve pipe. The impact action of cavitation jet flow is coupled to superfine powder preparation of a ball mill, gathering of particles is reduced, the superfine particle productivity of the device is improved, and the superfine particle preparation ball-milling testing device has the advantages that the product particle sizes are controllable, the structure is simple, and continuous production canbe achieved.

Description

technical field [0001] The invention relates to the field of fine particle preparation, in particular to a ball milling test device for fine particle preparation based on cavitation jet coupled collision impact. Background technique [0002] In the field of modern industry, fine particle materials are widely used in composite materials, new advanced ceramics, electromagnetic materials, etc. due to their different physical, chemical, surface and interface properties. However, the surface activity of fine particles is high and unstable, and they are prone to agglomeration, which is a difficult problem for mechanized preparation of fine particles. It is an important idea to study the preparation of fine particle materials by using gas phase or liquid phase medium to produce fine particle powder, increasing the distance between particles, alleviating the "agglomeration" of fine particles, and exerting the action of mechanical shear force and air or liquid flow to refine the part...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the problems of traditional ball mills such as grinding limit, poor particle crushing effect and particle "agglomeration", the present invention provides a kind of fine particle production rate, less particle "agglomeration", controllable particle size, simple structure, and continuous production. Ball milling test device for preparation of fine particles by cavitation jet coupling collision impact

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