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一、概述跳汰选煤具有工艺简单、成本低、处理量大等特点。目前在我国各选煤厂内以跳汰机为主洗设备的工艺流程仍占很大比例。电磁风阀是跳汰机重要组成部分，其控制机理、工作性能对跳汰机最终的分选效果起着关键作用。传统的电磁风问控制为单一进气脉动控制，即工作周期由进?
First, an overview of jigging with a simple process, low cost, large capacity and so on. Currently in China’s coal preparation plant to jig-based washing equipment process still accounts for a large proportion. The electromagnetic damper is an important part of the jig. Its control mechanism and working performance play a key role in the final sorting effect of the jig. Control of the traditional electromagnetic wind as a single intake ripple control, that is, the work cycle by the progress?