一、跳汰选大排矸的操作制度跳汰选时,采用大排矸操作制度的实质就是适当地降低跳汰机第一段的分选比重和提高跳汰机第二段的分选比重,便入洗原煤中的高比重(石于)石及早地彻底排除,减少其对精煤污染的机会。 First, the jig election large gangue operating system jig selection, the use of large gangue operating system is the proper way to reduce the jig first sorting and increasing the proportion of jig second paragraph sorting , The high specific gravity (stone-to-stone) content in raw coal is thoroughly eliminated as early as possible to reduce its chance of contamination with clean coal.