... de-solvent tower, deodorization tower, vacuum pump, filter and heat conduction oil furnace etc.Flow Chartde-mixed, degumming, dehydration, ... can reach 755mmHg or more; 8. Press filter: Filter clay, filter out clear oil; 9. Air compressor: Dry the bleached clay, blow ... empty the leftover oil in the press filter; 10. Dedusting ...