... Dewatering,widely used in chemical, pharmacy, food, light industry and vegetables. For instance:gypsum, ferric sulfate, nickel sulphate, copper' sulphate, ... grease, all kinds of resin, salt, gourmet powder, food addition,vitamin,and other miner powder. 2. Construction and working principle:The ... this case liquor pass through the sieve pore and sieve pore of the shell, then be discharged. Then solid be ...