洗煤前后的原煤和洗选产品脱泥脱水而产生的全部煤泥水不经浓缩就送入浮选机浮选的称为全部煤泥水直接浮选,其中一部分不浓缩而进行浮选的称部分煤泥水直接浮选,或称半直接浮选。本文仅就跳汰精煤捞坑的溢流作一部分直接浮选,另一部分不经浓缩稀释作跳汰机循环水用问题,即半直接浮选问题进行探讨。 Before and after the coal washing coal washing and washing products dewatering and dewatering generated from all the slime water into the flotation flotation called the entire direct slime flotation, some of which are not concentrated and flotation called part of the coal Mud direct flotation, or semi-direct flotation. This article only on the jigging pit of fine coal as a part of the direct flotation, and the other part of the jig without circulation through the use of concentrated water dilution problem, that is, the semi-direct flotation problems are discussed.