Peanut oil pretreatment craft:
Oilseeds->Cleaning -> Husking-> Crushing ->Softening-> Flaking-> Cooking-> Pre-pressing...
Peanut is a kind of high oil fuel oilseeds. Peanut oil can’t be pressed with only one extraction craft. Peanut butter flavor is unique, high nutritional value, which is favored by the majority of consumers. Win Tone Machinery as a professional oil press manufacture shares the peanut oil pretreatment craft to readers.
Peanut oil pretreatment craft:
Oilseeds->Cleaning -> Husking-> Crushing ->Softening-> Flaking-> Cooking-> Pre-pressing
1. Cleaning
1).According to different particle size between oilseeds and impurities, remove big and small impurities from oilseeds with vibrating screen.
2). Stones removal. According to different specific gravity and suspended velocity between oilseeds and stones, stones fall down and oilseeds suspend under the action of air flow to separate stones from oilseeds.
3). Magnetic selection. It uses magnet to remove metal impurities from oilseeds. Strong and uniform magnetism attract metals automaically and remove metals to prevent oilseeds carrying stones away, attracted metals by permanent magnet fall down automatically when metals reach non-magnetic area.
4). Remove impurities whose size is similiar to oilseeds according to different mechanical performance between oilseeds and clods, crush clods and then separate them through screen selection or wind selection.
2. Husking
Adopt wind selection and screen selection methods to separate husks from kernels.
3. Crushing
Before flaking, crush big oilseeds into smaller pieces to increase superficial area, beneficial for transfering softening temperature and moisture, improve softening efficiency.
4. Softening
Adjust moisture and temperature of oilseeds to improve their plastivity and reach required flaking condition.
5. Flaking
Roll oilseeds from pellets to thin flakes through mechanical method.
6.Cooking
Steam and cook green-pressing to cooked flakes through moist, heating, steaming and cooking to break the cellular structure so as to improve pressing oil yield and improve quality of oil and cake or meal.
7.Pre-pressing
For oilseeds with high oil content, it needs pre-pressing to press part of oil firstly and then extract residual oil in cake through solvent extraction method.
If you have any questions about oil pretreatment please consult our staffs. We will try our best to help you solve your problem.
