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本文介绍了一种以声能筛分物料的筛分仪的构造、原理及技术参数，通过对比试验证明其筛分性能优于手工和机械筛分性能，它能筛分出常规方式难以筛分的小于0．1mm粒径的微细物料．
In this paper, we introduce the structure, principle and technical parameters of a sifter that sonicate the material. It is proved that its sifting performance is superior to that of manual and mechanical sifting through comparative experiments. Of less than 0.1mm particle size of the fine material.