Lowdensity Separation Techniques Recover Valuable Coal .
WEBApr 5, 2021 · The standard for dewatering 1 mm x mm is the screenbowl centrifuge. These machines generate the lowest moisture with the highest recovery, according to Bethell. Broadbent and Andritz are two companies currently trying to break into the coal processing market with centrifugal dryers and displace some of the business held by .