Main press process:
Cleaning and separating—-steaming—-cooking—-pressing—-filter—-crude oil
Step functions:
Cleaning and Separating:
This process mainly to remove the impurities like iron, sand, and others.
The cleaning method mainly includes screen and magnetic separation.
Steaming:
This process namely soften the oilseeds, adjusting the moisture and temperature to a suitable level.
Cooking:
This process has the same purpose with steaming, aiming to make the oil out easily, the difference is just lower the moisture to 5~7%, too much water content will affect the oil outing.
Pressing:
This is the oil extracting process, the cooked oilseeds will be sent to screw oil press machine through the screw conveyor. After pressing, we can get the crude oil.