The feature,performance,application and effect of the 3GDMC1400/1000-type three-product dense-medium cyclone by unpressurized feeding in Laowuji Coal Preparation Plant were introduced in this paper.

• 介绍了老屋基选煤厂使用的3GDMC1400/1000型无压给料三产品重介质旋流器的特点、性能和使用情况。