... decoloration tower, de-solvent tower, deodorization tower, vacuum pump, filter and heat conduction oil furnace etc.Flow Chartde-mixed, degumming ... bleaching, deodorization which 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 system to prevent gas and dust from ...