通过在传统的螺旋分级机上引入湿式筛分，研制成螺旋分级筛分机。
Spiral classification-screening machine has been developed by introducing wet screening into the conventional spiral classifier.
适用于料物的颗粒分级选别及粉末、液体的筛分。
Suitable for grading granulated stuffs and screening out powder and liquid.
介绍了将原料煤加工成气化用原料煤的筛分、分级、成型等工序的工艺流程。
It introduces the process of screening, classification and molding of the raw coal which is prepared to be raw material coal for gasification.
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