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The function of pre-mixing tank in soybean oil refining process

The pre-mixing tank is an accessory device for the mixing of clay and oil in the decoloring process.

The pre-mixing tank is an accessory device for the mixing of clay and oil in the decoloring process. It can be used to assist the decolorizing device well, so that the mixed oil is more thoroughly decolored and the oil is clear.

In the traditional adsorption decolorization technology, since the activated clay enters the decolorization tower through negative pressure, there are many problems, such as the loss of white soil emptying, and the uneven mixing of clay and oil, which makes the decolorization effect of the oil difficult to ensure, in order to ensure the decolorization effect of the oil, The production industry generally increases the amount of caustic soda and increases the amount of caustic soda in the oil by increasing the amount of decolorizer or in the alkali deacidification process, but these two measures lead to a reduction in the yield of the refined oil and an increase in cost. In the premixing process, after the activated clay and part of the alkali refining oil are thoroughly mixed in the premixing tank, the decolorizing tower is under negative pressure, and enters the decolorizing tower together with the remaining part of the alkali refining oil, and the clay is mixed with the oil under normal pressure environment, The form of the fluid enters the decolorizing tower, which facilitates the transportation and avoids the loss of emptying caused by the negative pressure. In the decolorizing tower, the white clay can be thoroughly mixed with the oil to obtain a good decolorizing effect.


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