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Technology news

What are the filtration and impurity removal methods for oils and fats equipment?

2019-07-09

In general, after the oil crop has been pressed, it needs to be refined before it can be eaten. The refined oil can be obtained by passing the oil through the oil pipeline into the refined oil equipment for impurities removal, degumming, decolorization and deodorization. What are the filtration and impurity removal methods for grease equipment? In general, after the oil crop has been pressed, it needs to be refined before it can be eaten. The refined oil can be obtained by passing the oil through the oil pipeline into the refined oil equipment for impurities removal, degumming, decolorization and deodorization. In addition to the first step of the refined oil process, the impurity removal method in the industry is relatively mature at present, and the filtration method is commonly used for impurity removal. The filtration methods include gravity sedimentation, centrifugal force filtration, plate frame or belt filtration. Here are some details for each of these three methods:

1. Gravity sedimentation. That is, the gravity of the impurity itself, under the action of physical gravity, the suspended impurities are precipitated by standing, which is relatively simple, but time consuming and inefficient.

2. Centrifugal filtration method. That is, the centrifugal force under the high-speed rotation of the centrifuge separates the suspended impurities, the colloid and the oil. The method has a short time and good effect, but the cost is relatively high.

3. Plate frame or belt extrusion filtration method. That is, through the plate frame or the belt filter press, the impurities in the oil material are separated by the filter cloth under the action of super-strong pressing force, the method is convenient to operate, short in time, and good in effect, and most grease equipment manufacturers often use this law.