Superfine particle preparation ball-milling testing device based on cavitation jet flow coupled colliding and impacting

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