Pressure Leaf Filters
Closed, pressure-vessel filters with vertical or horizontal leaves, for polishing and filter-aid filtration of oils, fats and chemicals. Wet or dry cake discharge.
Specifications
- Orientation
- Vertical or horizontal leaves
- Cake discharge
- Wet (sluicing) or dry (vibration / flap door)
- Cake volume
- 184 – 2,500 L
Typical applications
- Bleaching earth filtration in edible oil refining
- Coconut and palm oil polishing
- Biodiesel purification with adsorbents
- Chemical and solvent clarification
Supplied in partnership with Tapisteknik (Malaysia).
A pressure leaf filter is a closed vessel holding a set of filter leaves: flat frames covered in fine wire mesh. Liquid is pumped in under pressure, passes through the leaves and leaves through a common manifold, while solids (often with a filter aid such as bleaching earth or diatomaceous earth) form a cake on the leaf surfaces.
Because the vessel is closed, leaf filters handle hot, flammable or odorous liquids safely and with little operator exposure.
Wet or dry cake discharge
- Dry discharge: the cake is blown dry, then shaken off the leaves by vibration and dropped through a bottom door or flap. Good where the cake is disposed of or reused as a solid.
- Wet discharge: the cake is sluiced off with liquid and pumped out as a slurry. Simpler, and suited to processes where the cake goes to further treatment.
We also supply replacement filter leaves for existing leaf filters.
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