Abstract: Disclosed are an animal fat grading device and an animal fat grading method. The device includes a frame, a barrel, a temperature control device, a collecting part, a compacting part and a collecting and stirring assembly; the frame is fixedly connected with the barrel, the barrel is connected with the temperature control device, the collecting part is located at a bottom of the barrel, the compacting part is located inside the barrel, and a top of the frame is telescopically connected with the collecting and stirring assembly; the collecting and stirring assembly includes a connecting plate, a stirring part and a scraper; the top of the connecting plate is telescopically connected with the top of the frame, and the bottom of the connecting plate is fixedly connected with the stirring part and the scraper; the stirring part is located in a center of the scraper, and the scraper corresponds to the compacting part. The application achieves an objective of grading fats with different melting points.

Abstract: Disclosed is an enzymatic hydrolysis device for livestock and poultry slaughter by-products, including a feeding barrel, and a crushing box is fixed and communicated with a bottom end of the feeding barrel; two symmetrically arranged rolling plates are arranged in the feeding barrel, and a rolling space is arranged between the two rolling plates, and a bottom of the rolling space is provided with a bearing plate; an air pump is fixed at a bottom of the crushing box; and a mixing disturbance mechanism, including a bottom plate, a slide rail fixed on a top surface of the bottom plate, a tank body slidably connected to the slide rail, and baffles fixed at both ends of the bottom plate; the tank body is internally provided with a plurality of circumferentially distributed curved panels; and there are a plurality of circumferentially distributed disturbance components in the disturbance space.