【摘要】 从分析分级机叶槽中气体流动规律出发，推导出分级粒径计算公式，在对所导出公式进行分析的基础上，指出了结构设计和实际运行所应把握的要点．通过滑石微粉工业生产试验，取得了Ｄ９０≤２μｍ且产率１４０ｋｇ／ｈ的较为满意的结果．更多还原

【Abstract】 Cut sizes are deduced based on the gas flow principle in classifier blading. On the basis of the deduced formula, the structure design and its dey points in practical application are indicated. A satisfactory result is obtained showing D 90 ≤2μm and yield=140kg/h through the industrial testing of talcum powder.更多还原