Preparatory & Solvent Extraction workshop
Soybean feeding →cleaning→ magnetic separating → conditioning→ cracking
→flaking → soybean flakes → solvent extraction →soybean meal ware house
↓
crude oil
↓
refining
Soybean Oil Extraction Line
Oil Extraction: The flaked soybean is conveyed to rotary extractor and kept for a certain level. Spray the flaked soybean with solvent (hexane). The flaked soybean moves forward with the action of driving device. In this case, the flaked soybean is sprayed and immersed, thus oil in soybean is separated out. Mixture of oil and solvent is called “Miscella”. When the Miscella has been filtered, it will flow to the Miscella cell. Pump the Miscella of high concentration into the Miscella Tank and then to the evaporation and oil stripping system. Miscella of low concentration is sprayed again. After approx. 1 hour, the oil is extracted out. Then the cake slag (here called as “meal”) is pushed to the wet meal (there is solvent in the meal, so it is called “wet meal”) outlet of extractor. Recover solvent in wet meal by Desolventizer (DTDC). Constant material level works for sealing and stabilizing material flow. The transmission bearing is set outside to prevent against mechanical trouble caused by solvent corrosion. Meal in Miscella is removed by Liquid Cyclones.