Automatic Mild Steel Pressure Leaf Filter Horizontal, For Industrial, Capacity: 120 M/Sq

Product Details

Classification: Depending upon how filters are opened for cleaning they are classified in two types:  a) Shell Retraction: The Horizontal Leaf Filter consists of a Horizontal Cylindrical vessel with special bayonet wedged lock closure & Viton seal. The retractable filter shell is mounted on 4 external wheel assemblies and retraction is accomplished by a hydraulic cylinder. All sensitive nozzles are mounted on a fixed dish and there is no need to disconnect any piping during cleaning operation. To open & close wedge lock, the filter is equipped with 2 Nos of powerful hydraulic cylinders connected with a hydraulic power pack. 5 ply filter leaves constructed in SS 316 L / SS 316 with bottom drain nozzles are mounted on the central outlet manifold & clamped with a common shaft on top for fixing leafs. Once the filtration is completed, the filter is drained & filtered cake is dried with steam. Dried cake is dislodged manually by scraping after retraction of shell.  b) Leaf Bundle Retraction: The Horizontal Leaf Filter consists of a stationary horizontal cylindrical Carbon Steel vessel with special bayonet wedged lock closure & Silicon seal. Leaf bundle moves on rollers riding on tracks with the end of the bundle supported by another set of rollers. To open & close wedge lock, the filter is equipped with 2 Nos. powerful hydraulic cylinders connected with hydraulic power pack filter leaves construction in AISI SS 316 L with bottom drain nozzles are mounted on the central outlet manifold & clamped with a common shaft on top for fixing leafs. Once the filtration is completed, the filter is drained. After draining the filter is opened and the cake is dislodged manually by scrapping after retraction of Leaf Bundle.  Normally filters are pre coated with filter Aids. Quantity of filter aid varies as per applications / capacities.  After pre-coating, the liquid to be filtered is pumped in to the filter and subsequently the layer of the particles is formed on surface of leafs and after few minutes of circulation,the clear filtrate outlet is observed. As filtration proceeds solid gets deposited on leaf surface and the differential pressure increases. Pressure of 3.0 – 3.5 kg/cm2 is maintained inside the filter for effective filtration. Once the filtration is completed, the feed pump is stopped and steam / air / N2 (As process allows) is applied from top of filter without dropping filter pressure to empty hold up material from filters.  As filter is emptied you can observe drying media flows from outlet. Then hold up from bottom cone is drained and cake is dried by drying media Once cake is dried, filter shell or leaf bundle is retracted. Cake accumulated is dislodged manually by operating Pneumatic Vibrator. Whole operation for cake drying and discharge is completed with in 45 -60 minuets. If process allows sluice headers with water spray nozzles are provided for cleaning leaf surface. Application : 1. Edible Oil –(To filter Crude Oil, Bleached Oil and Nickel Catalyst from hydrogenated oil)  2. Liquid Glucose, High Molecule Corn Syrup 3. Fine Chemicals, plasticizers and Oleo chemicals. 4. Organic & Inorganic Salts, Amines, Resins, Bulk Drugs. 5. Water, Brine.