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介绍了ＥＰＶＣ系列导叶式旋风管的叶片形状、优化的叶片出口参数间的匹配关系以及新的防返混锥排尘结构，总结了无泄料盘时的排尘机理及尺寸设计要点。另外，还简单介绍了旋风管装置的工业应用情况。
This paper introduces the blade shape of EPVC series guide vane cyclones, the matching relationship between the optimized blade outlet parameters and the new anti-return cone draft structure, and summarizes the dust-removing mechanism and dimension design points when there is no discharge disc. In addition, a brief introduction to the industrial application of the cyclone device.