Method of rapeseed oil extraction process
1) The material will be have a pretreatment process , we need to clean the rapeseed , crush , cook , flaking , press the rapeseed . the oil residue in the cake is about 7-8 % .this method is suitable for small capacity ,not large .
2) The method is pre -press and solvent extraction method .It means we press the rapeseed first,then the oil residue left is about 12-13% 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 .
Main parts of canola 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.
(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.
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.