Pretreatment&Prepress:
a. Cleaning device:remove the raw material peanut in various impurities, such as: iron, stones, clump, such as the plant leaf, clean up till impurity content does not exceed 0.2%.
b. Softening process:the purpose of softening is to adjust the moisture and temperature of oil, and make it soft.
C. Flaking process: rolling raw material into flakes, and the purpose is to increae surface area, destroy the peanut cell tissue, shorten the way of oil out from cake.
d: Cooking process: use steam cooking, inject direct steam and cook the flakes to meet the requirement of oil press.
E. Pre-press: press the flakes to leave about 16%-18% in the cake. The cake will go to extraction process.
Extraction process:
1. Solvent pumps: continuously spray solvent to the rotary-type extractor
2. Roary extractor: Spray and soak the pre-pressed cake with solvent so that oil fats can be diss-olved in solvent(form miscella). After processing, you can get wet meal and miscella (mixed oil).
3. DTDC: usd to separate the solvent from the wet meal.
4. Miscella tank 1st: pump the miscella (oil with solvent) in to the miscella 1st, then add saline water to it. The phospholipid in the miscella will react with the saline water, at last the reactant precipitate, reaching the goal of purifying.
5. Miscella tank 2nd: the purified miscella will be pumped into it.
6. Miscella stripping: it will remove the remaining solvent in miscella. And the solvent will be discharged to condenser for recycling.
7. Condensers: used to cooling the solvent gas separated from the wet meal and miscella for recycling.