基于煤用跳汰机气动驱动传统数控电磁风阀存在系统功率偏高,可靠性和稳定性较差,分选效率低,能耗高、污染大等问题,提出步进电机驱动的新型数控风阀,对其工作机理及现场应用做了详细的技术比较,为洗选煤企业跳汰机风阀的技术改进提供了参考。 Because of the high power, poor reliability and stability, low efficiency of sorting, high energy consumption and high pollution, the traditional numerical control electromagnetic damper pneumatic driven by jig for coal has proposed the new numerical control wind driven by stepper motor The valve made a detailed technical comparison of its working mechanism and on-site application, which provided a reference for the technical improvement of jigger valve in coal washing enterprises.