The raw materials are transported by belt to the high temperature of the second layer platform, where they are fully mixed and stirred, and decomposed into powdered materials. At this time, the humidity of the materials is about 30% -35%, and the oil content is about 8%; After maturation, the material enters the mixing bin and is equipped with a stirring buffer for stirring; After stirring, the material is filtered to remove impurities and pressed for degreasing; The solid material after pressing is fully cooled by a screw conveyor, and the temperature of the material is at room temperature; Crushing is carried out by air flow to the finished product silo, which is then mixed and packaged. After entering the storage tank for sedimentation and filtration, the settled oil is transported to the storage tank by a screw pump.