红透山铜矿废石X-荧光预选的粒度效应研究

Study on influence of feeding size of X-ray pre-concentration of gangue from Hongtoushan Copper Mine

对辽宁红透山铜矿采矿废石进行了不同粒级条件下、不同分离阈值预选效果试验。研究发现,预选指标随给料粒度的变化而变化,在其他试验条件相同的情况下,-150+100 mm粒级的分选指标明显优于其他粒级,即给矿块度较大有利于该铜矿废石分选指标的改善。

The test for pre-concentration effects of gangue from Liaoning Hongtoushan Copper Mine was conducted at various feeding size and separation threshold. The results showed： the pre-concentration indexes varied with the feeding size; at the same test conditions, the separation indexes of-150＋100 mm particles were obviously superior to those of other sized particles, which indicated that larger sized particles was contributive to improvement on the separation indexes of the gangue.