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介绍了利用高效超细旋流分级机对粉石英进行干法分级的试验，分析了影响分级效果的因素，以及与超细振动磨组成的粉磨、分级闭路流程试验结果
Introduced the use of super-efficient super-fine cyclone grading machine for dry grading of quartz powder, analysis of the factors that affect the grading effect, as well as ultrafine vibration mill consisting of grinding, grading closed circuit flow test results