... elevator to convey soybean2.Clean soybean to remove big, small and metal impurities from soybean with vibration screen ,stoning machine ... pipe evaporator and steam-stripping column to separate solvent from oil according to their different volatility and boiling ... soybean oil.3. Use desolventizer-toaster to remove solvent from meal.4. Solvent from evaporator,steam-stripping column and desolventizer can ...