The full refining process can be divided into neutralization, washing, vacuum drying,decolorization, deodorization, and deparaffinization stages. Fully refined edible oil: light. Odorless, raises the point of smoke, and has a longer shelf life. Semi refining process: neutralization stage, washing stage, vacuum drying stage. After the semi refined edible oil: clear, the smell of the original edible oil is preserved, the smoke point is raised, and the oil shelf life is extended. Low temperature cold filtration: after cooling down, precipitation and other processes take off the wax in the edible oil. Heavier solid particles. Low temperature and cold filtration preserved the maximum amount of nutrients in edible oil, and the original smell, after dewaxing guaranteed clear oil,
Process of Oil Refinery Machine
Degumming
The purpose of degumming is to remove the phospholipid, sugar, protein, trace mental, and some other impurities, which have bad effect on the stability of the oil. First, the oil should be heated to 90 to 105°C, then put some phosphoric into it and stir. It mainly transfer the phospholipid to that can be compatible with water. Then add some salt water to gather the impurities, which subside to the bottom and be discharged.
Deacidification
Add some certain quantity of alkali to neutralize the free fatty acids. During this process, somesoap stock will be produced.The soap stock will be separated from the oil after using the centrifugal machine.
Decoloring
Mix the oil with activated clay in the oil soil mixing tank, and 1 ton oil needs 5kg clay. Then stir it 10 minutes at 10°C. Next,pump the mixed oil into the decolorization tower. It use steam to heat the mixed oil at 100°C, and the process lasts 30-40 minutes.
Deodorizing
The main purpose of deordorization tank is to remove fatty acid and some odor material. The principle of the deordorization is to use the high temperature and vacuum to remove the odor. The fatty acid and odor will be stalled in the storage tank.
Dewaxing
Dewaxing can improve oil palatability,so it plays an important role to the quality of finished oil.At the same time, dewaxing can improve oi transparency and brightness.It is necessary to dewax for some oils such as maize oil,rice bran oil,sunflower oil and cottonseed oil.At present , wintering method is very popular to deawxing. The crystallizing rate crystallizing temperature, maturing time vary with oil features.
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Company Profile
Ruian Every Oil Machiney Co,. Ltd
Specialized in manufacturing oil press machine, oil filter, oil engineering design\\ installation\\ debugging and training service etc. The products have been sold to customers in most part of China and worldwide such as Southeast Asia, Africa, South America and Middle East, etc.In the new century, the goal of the "MCRAYONE" is to make better oil press and associated supplement as well as new products in order to better serve customers.
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