Do you know how to deal with impurities in the oil pressed by the oil press?
Do you know how to deal with impurities in the oil pressed by the oil press?
Most of the impurities contained in the oil do not contain oil itself. In the process of oil preparation, not only the oil will not be produced, but a certain amount of oil will remain in the cake, which will reduce the oil yield and increase the oil loss. Impurities such as soil, plant stems and leaves, husks, and auspicious grains contained in the oil will darken the color of the prepared oil, increase sedimentation, produce peculiar smells and other undesirable phenomena, reduce the quality of crude oil, and also make the cake and The quality of by-products such as phospholipids is adversely affected. In the production process, hard impurities such as stones and iron in the oil enter the production equipment and conveying equipment, especially the high-speed rotating production equipment, which will wear and damage the working parts of the equipment, shorten the service life of the equipment, and even A production accident occurred. The long-fiber impurities such as wormwood and hemp rope in the oil are easily entangled on the rotating shaft of the equipment or block the inlet and outlet of the equipment, affecting the normal production and causing equipment failure. The flying dust in the oil during the transportation and production process caused environmental pollution in the workshop and worsened working conditions. Therefore, the effective cleaning and impurity removal of the oil before the oil preparation can reduce the loss of oil, increase the oil yield, improve the quality of the oil, cake and by-products, reduce the wear of the equipment, extend the service life of the equipment, and avoid Production accidents ensure the safety of production, increase the effective oil handling capacity of equipment, reduce and eliminate dust in the workshop, and improve the operating environment.
2. Methods and requirements for oil cleaning
The method of cleaning the squeezed oil of the oil press is mainly based on the differences in the physical properties of oilseeds and impurities in particle size, specific gravity, shape, surface state, hardness, magnetism, aerodynamics, etc., using screening, magnetic separation, wind separation, and specific gravity. Sorting and other methods and corresponding equipment to remove impurities in the oil.
The requirement for oil cleaning is to remove impurities as much as possible. The purer the cleaned oil, the better, and strive to have a short cleaning process, simple equipment and high impurity removal efficiency. After various oils are cleaned, they must not contain large impurities such as rocks, iron impurities, hemp rope, and poultry grass. The higher limit of impurities in the net material is 0.1% for peanut kernels, and 0.5% for soybeans, cottonseeds, rapeseeds, and sesame seeds. The higher limit of oil content in impurities (leftovers) is soybean, cottonseed, and peanut kernel. .5%, oil seed and sesame seeds are 1.5%.
