▎ 摘　　要

NOVELTY - The device has a fixing frame that is provided with an extrusion part and a moving part, and a crushing mechanism is arranged on one side of the fixing frame. The fixing frame is provided with a crushing mechanism, and the crushing mechanism is provided with a crushing roller (131) and a blade (191). The fixing frame is provided with a shell (11), and one end of the crushing roller is provided with a second gear. One side of the casing is rotated and provided with a first gear for driving the crushing roller. A limit plate (19) is rotatably provided in the casing, and the blade is arranged on the limit plate. A cover plate is slidably arranged on the moving part. The moving part is cooperated with the cover plate to form a cylinder, and a frame body for screening raw materials is arranged on the moving part. USE - Raw material processing device for nano-particle graphene composite catalyst preparation. ADVANTAGE - The raw material processing device is provided with crushing mechanism crushing the raw material for many times, the crushing effect is good and the crushing efficiency is high. The moving piece and the cover plate are matched with the raw materials to filter raw material particles with the specified size, remove the mechanism material powder, and fully dry raw material powder. The device has good crushing effect and high crushing efficiency. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view showing the structure of a fixed frame. Shell (11) Sliding groove (17) Limiting plate (19) Crushing roller (131) Blade (191)