Filtration Vertical Pressure Leaf Filter

The Pressure leaf filters is a vertical steel vessel where many vertically mounted S.S. filter leaves are housed inside with the help of properly designed manifold. The Pressure Leaf filters are suitable for filter aid (pre-coat) type of filtration, i.e. filter aid bleaching earth fuller earth etc. has to be added for filtration. The filter leaves, filter on both sides due to which gross leaf filtration area obtained is more in relatively small sized vessel. The required oil slurry is pumped into the filter vessel, clear filtration starts as the sufficient cake is built over the leaf surfaces and filtered oil comes out through the manifold. The solid keeps getting accumulated on the filter leaves and a thick cake is formed. Once the pressure reaches 3.5 Kgcm2, the cake is dried with hot airsteam and relived from the leaves by pneumatically operated piston vibrator and drops through a large size bottom outlet. The design pressure is 4Kgcm2 & design temperature is 120deg.C