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Oil Extraction Process

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Soya bean oil solvent extraction plant photo

Oil mill machinery oil extraction process
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+86-135 2662 7860
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Soya bean oil solvent extraction plant


Method of  soya bean oil extraction process :
1) The soya bean will be have a pretreatment process , we need to clean the soya bean , crush , soften. The soybean oil content is about 18%. Soybean is a kind of low oil content oilseed compared with other oilseeds as, peanut, sesame, canoal,etc. So usually we adopts pretreatment and solvent extraction way to process soybean and get soybean oil.
2) The method is pre -press and solvent extraction method .It means we press the soya bean first,then the oil residue left is about 7-8% in the cake .Then we send the cake to extractor to leah the oil from the cake ,which make sure the oil residue is about 1%.This method is for larger capacity ,and the invest is a little big .
oil extraction machine workshop
Oil extraction machine workshop
Soya bean oil extraction introduction:
1) Function: Leaching system is an oil extraction through soaking or spraying pre-pressed cake by a certain organic solvent. The principle of this part is the different solubility of solvent.
2) Use range: Solvent extraction fits for pre-press extraction of high-oil-content materials and direct once time extraction of low-oil-content materials.
3) Main parts: The extraction series includes rotary extractor, toaster, 1st evaporator, 2nd evaporator, stripping tower, condenser, etc.
Technical parameters of oil extraction process:

Capacity 30-500T/D
Residual oil in meal ≤ 1%
Solvent consumption ≤ 2Kg/T (No.6 solvent oil)
Crude oil moisture and volatile matter ≤ 0.30%
Power consumption ≤ 15KWh/T
Steam consumption ≤ 280KG/T (0.8MPa)
Finished meal moisture ≤ 13% (adjustable)
Residual solvent in finished meal ≤300PPM (qualified detonated experiment)

Main parts of soya bean oil extraction machine:  
(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 dissolved 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 , and then add 10% saline water to it.
The phospholipid and impurities in the miscella will react with the saline wter, 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.

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