▎ 摘　　要

NOVELTY - The device comprises a preparation box, where the outer wall of the top portion of the preparation box is fixedly connected with two first connection frames, and the outer walls of one side of the two first connecting frames are fixed with a first motor (3). The output end of the first motor is connected with a rotating frame (4) through a coupler. The outer walls on the two sides of the rotating frame are both fixed with first telescopic rods (7). The first mounting hole is provided on one side outer wall on the rotating frames. The connecting pipe (5) is fixed on the inner walls of two first mounting holes. The hollow grinding block (6), and a first discharge port is opened on the outer sidewall of the hollow grinding blocks. The first connecting rod (8) is connected to one side inner wall of one end of a side of a connecting pipe. USE - The device is useful for preparing modified polyvinylidene fluoride by graphene, which is useful in the water treatment process, organic pollution in water caused by the film, surface as to generate the film pollution, and oxidation graphene hydrophilic material. ADVANTAGE - The modification of the polyvinylidene fluoride is improved, and the stirring time to production efficiency device is reduced. The practicability of the device is improved. The pollution to the material in the modification process is prevented. The dust in the air above the device in all directions is effectively absorbed. The mixing time of the two mixed materials in the impact process is accelerated. The mixed materials are uniformly stirred. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for the method for preparing modified polyvinylidene fluoride by 10% of oxidation graphene applied to the device for preparing modified polyvinylidene fluoride, which involves: 1. pouring the polyvinylidene fluoride into the connecting pipe, then dropping the polyvinylidene fluoride on the pressing and grinding plate through the first discharging port on the hollow grinding block; 2. starting the first motor to drive the hollow grinding block and the grinding block to press and grind the polyvinylidene fluoride through the first telescopic rod can adjust the height of the grinding block so that the grinding thickness of the hollow pressing block and the pressing block are different to realize the polyvinylidene fluoride multi-layer pressing grinding, after pressing the polyvinylidene fluoride, it can accelerate mixing with the oxidation graphene; 3. starting the air pump conveying gas to the arc-shaped drum air plate through the air pump, the gas passes through the drum air hole to blow the pressed polyvinylidene fluoride to the four sides by pressing and grinding the polyvinylidene fluoride blowing it to the periphery, the pressed and grinded polyvinylidene fluoride and the oxidized and graphene polyvinylidene fluoride can be uniformly mixed. DESCRIPTION OF DRAWING(S) - The drawing shows the schematic view of the device for preparing modified polyvinylidene fluoride by the oxidation graphene. First motor (3) Rotating frame (4) Connecting pipe (5) Hollow grinding block (6) First telescopic rod (7) Connecting rod (8)