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应用两段跳汰机洗煤时,一般认为,跳汰机的洗选效率和原煤可选性有关。但是,在原煤中+1.8比重级出量对跳汰机洗选效率究竟有什么影响这个问题却存在着很多争论。对于这个问题,个人也曾有所考虑,今天在这里写出来,以供同志们讨论。为了便于比较,我们可以根据跳汰机生产实际得来的分配率和精煤各比重级的灰分来计算入选原煤(原煤)、假定去掉
When two-stage jig is used to wash coal, it is generally believed that the jigging efficiency of the jig is related to the coal selectivity. However, there is much debate about what exactly affects the efficiency of jig washing at the rate of +1.8 gravity in raw coal. Individuals have also considered this issue and wrote it here today for discussion by comrades. For the sake of comparison, we can calculate the selected raw coal (raw coal) based on the actual allocation rate of jig production and the ash content of each specific gravity grade of coal, assuming that the removal