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Cold pressing oil extraction can keep the physiological active substances contained in rapeseed and avoid harmful substances caused by degeneration of oil, protein, carbohydrate and lipoid in the process of high temperature pressing.
In the past ten years, edible oil refining develops rapidly and has become an important industry. Because of the low price of the crude oil and refined oil, the profit margin of the refinery is quite small. Production costs have increasingly determine the profitability of refineries.
Peanut oil refining. After cooling the crude oil obtained by double pressing, use the centrifugal filter to filter slags.
Although screw oil press has been used for more than 100 years in oil extraction industry, it is still one of the main machines of oil processing industry and widely used in major oil production enterprises.
XG type screw palm oil press has the feature of easy operation, high oil yield, low consumption. It is well received in the Africa market, and has the good reputation among the customers.
Extract oil by pressing is a traditional method of vegetable oil extraction. With the development of oil extraction technology, three types of oil extraction methods are created from manpower press, hydraulic press to screw oil press.
Soybean storage is mainly the conventional storage, but impurity removing, drying, ventilation and heat dissipation should be noticed before and during the storage of soybean.
The methods of oil refining can be divided into three types: mechanical refining, chemical refining and physical refining.
When using small homemade oil press, the wrong way of operation may bring indelible damage to the equipment, so correct operation method should be used in order to make customers use the oil press for a longer time.
In the process of using oil press, circumstance like less oil yield would appear more or less. Then, what’s reason for that?
Raw pressing (cold pressing): put the oil plants directly into the oil press, then normal production can be start. Low temperature cold pressing: cook the oil plants with low temperature.
Flaking machine is one of the key equipment of oil plant with high price, heavy body and high cost of repair. In the process of production, the flaking machine should be maintained carefully to prolong its service life
In general, the extracting equipment can be divided into two categories through the characteristics of operation mode, respectively intermittent extracting equipment and continuous equipment.
Mechanical equipment is expendable, and the extracting equipment is no exception. That how to properly maintain the extracting equipment and extend its service life is crucial:
Detection of each oil pipeline of the complete sets of soybean oil machine. Clean up the oil discharge pipe in time to prevent the blockage. Adjust the size of the pipeline according to the production of oil.
Ensure the regular break of oil press and avoid continuous running for a long time. After 50 hours working, the operator should stop and check the lubrication of oil press. The oil cup of reducer shall not be short of oil or less than 1/2, and fill butter. It is strictly prohibited for dry grinding.
In recent years, with the pursuit of the lowest cost of processing and the market demand for high protein soybean meal and grade soybean meal, soybean processing technology has developed rapidly.
The pretreatment of soybean can make the material structure and properties meet the process requirement of extraction and obtain good extracting effect.
Copra is used as raw materials and extracted from crusher or screw coconut oil machine. Solvent is used for secondary extraction as a supplement of coconut oil processing to obtain the residual oil in the meal.
Soybean extruding technology can reduce the production cost and improve the quality of oil and meal as well. Soybean extruder is the equipment mainly used for stabilizing and extruding treatment of soybean in cereal and oil industry.
Since the late 1950s, the oil press machinery industry in China has experienced the development process of growing out of nothing and expanding from small to large, it has made a contribution to the development of grain and oil and food processing industry in our country.
With the continuous development of edible oil refining technology, the "five de" continuous oil refining process is widely used around the world, that is "hydration degumming, alkali refining and deacidification, adsorption decolorizing, winterization dewaxing, high-temperature deodorization".
Centrifugal filter press are equipment which take advantage of high speed centrifugal force, make the oil, water and impurities in the eatable oil to separate rapidly under the different centrifugal force.
Seed oil press uses the electric motor or diesel as the engine. Before pressing, a small amount of oil seeds need to be pre-treated, such as peeled or cooked to get higher oil output.
Cold press is the completely physical and mechanical way of oil production. The oil obtained need to be filtered or dried to meet the requirements of consumption.
Nowadays, with the developing of the consume level, consumers' demand for cooking oil becomes higher and higher. However, the oil obtained directly by oil press contains many impurities and can not be eaten directly unless processed through the processing of edible oil refining equipment.
Problems are inevitable when we use the oil press to press crops. We should find out the reason on the specific problems before solving it.
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