Pre-coating Rotary Vacuum Drum Filter 

The pre-coating vacuum filter is made of stainless steel. It is suitable for the process which needs filtration and doesn’t need filter residue. It works as follows: At first, on the surface of drum, a layer of pre-coat of filter aid like bergmeal or perlite should be formed evenly. Processing material is filtered into the bottom basin of the equipment. Under the function of vacuum, filter liquid goes through subsequently the pre-coat layer, filter cloth, imbibing tube, filter liquid collection pipe, and vapor liquid separator then enters into next processing section. Meanwhile the solid powder or

other foreign impurities in the material is counterchecked by the pre-coat then removed by movable peeler continuously. When the thickness of the residual pre-coat is less than 10mm, it needs pre-coating again.

Functional area of pre-coating rotary vacuum filter can be designed based on customers’ different requests, from 5m2 to 80m2 is available.