Rice bran oil extraction machine:
    Rice bran pretreatment of rice bran oil extraction machine: Raw rice bran may contain a small amount of impurities and be removed by screening; and the rice bran and barley are separated, and then enter the quenching and tempering system, and a small amount of steam is passed into the raw material (about 2% of the raw material amount ), So that it is quenched and tempered to facilitate subsequent expansion or granulation. After the pretreatment, the rice bran directly enters a granulator or an extruder, and the expanded or granulated rice bran is cooled, and then enters a rice bran oil extraction machine to extract rice bran crude oil.
    Rice bran oil extraction machine extraction workshop process: The cake enters the rice bran oil extractor, and the solvent n-hexane is added to the meal to dissolve the oil in the cake to form a mixed oil. The mixed oil passes through the filter medium (screen), which contains The solid meal is retained and a relatively clean mixed oil is obtained, which is sent to the evaporation process.
    Rice bran oil extraction machine mixed oil evaporation: Utilizing the characteristics that the oil is almost non-volatile, and the solvent has a low boiling point and is easy to volatilize, the majority of the solvent is vaporized by using split-tube steam heating, thereby greatly increasing the concentration of oil in the mixed oil.
    The mixed oil phase enters the tube side of the first long tube evaporator from the mixed oil tank, and the evaporated solvent enters a vapor condenser through the separation chamber; the concentrated mixed oil enters the second long tube evaporator for evaporation, and the evaporated solvent vapor is separated. The chamber enters a two-vapor condenser. Because the solvent vapor from the first and second evaporators does not contain water, it is directly cooled by the cold exchanger and then flows into the circulating solvent tank.
    This process mainly uses a long tube evaporator, which is characterized by a long heating pipe. After the preheated mixed oil enters the heating tube from the lower part, it quickly boils, generates a large number of vapor bubbles and rises rapidly. The mixed oil is also driven by the rising vapor bubbles and pulled into a liquid film to rise along the tube wall, and the solvent continues to evaporate in the process. Since the heat transfer is performed in a thin film state, the evaporation efficiency is high.
    Stripping section of rice bran oil extraction machine: The concentration of the mixed oil is greatly increased by evaporation, but it still contains a small amount of solvent oil, which is removed by steam stripping. The mixed oil is incompatible with water, and direct pressure steam with a certain pressure is passed into the thick mixed oil with a high boiling point (the direct steam input is about 2% of the material amount), and indirect steam is passed into the equipment jacket Heating, so that the direct steam flowing into the mixed oil does not cause condensation. The sum of the vapor pressure of the direct steam and the solvent is balanced with the external pressure.
    The solvent is boiling, which reduces the boiling point of the high boiling point solvent. The uncondensed direct steam entrains the distilled solvent together. Enter the condenser for condensation recovery. The crude oil obtained after the stripping is refined in a physical refining workshop.
    Wet meal desolvation section of rice bran oil extraction machine: The wet meal filtered and separated by rice bran oil extraction machine contains a certain amount of solvent. Water vapor is passed through it to remove the solvent and the solvent is removed. The principle is basically the same as that of mixed oil stripping. Then, the rice bran meal is dried by indirect steam heating in the lower layer of the evaporator. Give away warehouse packing

Model MKY30 --- MKY 3000
Output 30 tons --- 300 tons / day
Lowest price $ 50,000

Rice bran oil extraction machine