Peanuts Oil Production Line
Peanut is one of the main raw materials in the world, and their oil content is about 40% to 50%. The processing technology of peanut is generally divided into two methods: physical pressing and solvent extracting, so as to obtain peanut meal and oil. The cake meal can be used to produce edible peanut protein, animal feed, etc. The crude oil is further refined to obtain refined edible oil.
Peanut Pretreatment Process
Pretreatment is a series of treatments such as cleaning,shelling, crushing, flaking, cooking before extracting oil, aiming at removing impurities and making peanut into materials with certain structural properties to meet the requirements of different processes.
01.Cleaning
Peanut in the harvest, transportation and storage process may be mixed with some impurities, mainly dust, sand, stone, metal, stems and leaves, skin and so on. Usually using screening, magnetic separation, wind separation and other methods and corresponding equipment to remove impurities in the seeds.
02.Shelling
Removing peanut shells can not only improve the oil yield, improve the quality of crude oil and cake, but also reduce the wear of the equipment, increase the effective production of the equipment, and facilitate the follow-up process and the comprehensive utilization of the shell.
03.Crushing
The surface area of the crushed peanut is increased, which is conducive to the transfer of temperature and water during softening, improve the softening effect, and prepare for the subsequent rolling process.
04.Softening & Rolling
Softening is to adjust the peanut moisture and temperature, reduce the powder and stick roller phenomenon in the rolling process, ensure the quality of billet.
Rolling is the process of making peanut from grain to flake by mechanical action, which is good for the extraction of oil and improving the steaming effect.
Pressing Process
With the help of mechanical external force, the method of extruding oil from oil is called pressing oil.General there are screw oil press machine and hydraulic oil press machine. According to whether the raw material needs to be roasted, it can be divided into cold pressing and hot pressing. The hot pressing has a high oil yield, the color of the oil is slightly darker, and the cake is generally used as feed due to protein denaturation. The cold-pressed oil yield is lower, the color of the oil is light, and the cake can be used as a raw material for eating protein powder or feed.
Main Process Of Peanut Oil Pressing Process​:
Solvent Extraction Process
The oil content of peanut is relatively high, after the pressing, in order to obtain more oil and considerable economic benefits, the pressed cake meal can be reused as solvent for oil extraction. After extraction, the residual oil in the meal is generally less than 1%. Groundnut meal can also be used to process animal feed.
Main Process Of Peanut Oil Solvent Extraction Process​:
Peanut Oil Refining Process
Generally, unrefined oil is called crude oil, which often contain a range of impurities, such as suspended impurities, moisture, phospholipids, free fatty acids, pigments, waxes, etc. The removal of these impurities can make the acid value, peroxide value, moisture content, color and odor of the oil meet the qualified standard, which is beneficial to improve the safety and storage stability of the oil. Refining process can be divided into degumming, deacidification, decolorization, deodorization and dewaxing steps according to the requirements.
Craft Flow Of Peanut Oil Refinery:
Features
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