1. Automatically discharge cakes.
2. Easy to operate and maintain
3. Less labor cost
4. High efficiency and energy saving
Filter mainly used in this process is heat-discharging filter. In winterization/dewaxing/fractionation, waxy crystal or oily crystal float in oil. And we must separate them apart.
Comparing with plate filter presses, heat-discharging filter reduces labor cost by discharging cakes with heat instead of labor.
Liquid oil is pressed though filter cloth by pressure difference, and flows though oil exit on filter plate. While solid waxiness or fat is stopped. When filter pressure reaches scheduled pressure(depens on oil quality and waxiness content), after stopping oil, add direct steam or scheduled hot water to liquefy solid waxiness or fat, open filter frame and release all waxiness or solid oil. After that, cool heating tube with colling water, and close filter frame. Heat-discharging filter can be reused then.
Heat discharging filter