What can be seen in the video is primary refining equipment, with dehydration, dephosphorization, deacidification, decolization and deodorization functions, suitable for a variety of plant and animal crude oil, can meet the national standards of primary and secondary oil. The gross oil is stirred in the refining tank to remove mechanical impurities, moisture, glue-soluble impurities, lipid-soluble impurities and other impurities to obtain the clear finished refined oil.