The sound cleaning principle of the test sorter is the high frequency vibration signal of the sound generator. The manufacturer's disturbed bed sorting test for coarse slime of different particle sizes proved that the disturbed bed sorting technology has a good sorting effect on 1.6-0.8mm coarse slime. When the particle size is as wide as 1.6 ~ 0.28mm, the sorting effect becomes worse. After converting the transducer into high-frequency mechanical vibration and propagating to the iron absorbing medium, the sound wave in the cleaning liquid is radiated forward thinly, and then thousands of tiny bubbles (cavitation nuclei) generated by the flow of the liquid are generated. And it vibrates under the action of the sound field. When the sound pressure reaches a certain value, the bubble grows rapidly and then suddenly closes. When the bubble closes, a shock wave occurs, generating thousands of atmospheres. When the clumps of particles adhere to the surface of the cleaning sheet, the solid particles pass through the atmospheric pressure and the surface is separated, and then arrive Purpose of cleaning the surface.