▎ 摘　　要

NOVELTY - The graphene claims a modified plastic pre-processing device, comprising an extruding section connected from front to back, a cooling section, dry section, a filling section, a granulator, extruding section comprises a screw extruder, extruding the cross section of the plastic strip is formed with a semi-closed structure with an opening, the cooling section comprises an air inlet and an air outlet at the top and the bottom of a heat insulation cooling box dry section comprises a heater and a fan set in a dry box the filling section comprises a second feeding machine set on the top part of the filler box graphene filler falls into the plastic strip to fill the inner cavity of the plastic strip; the box body is further provided with at least one pressing material block the filler graphene into the plastic strip; the back end of the filling section is provided with a second die head, the plastic strip after graphene through the filling material is covered to form a closed column after passing through the second die head, and then granulating by a granulator to obtain graphene plastic coated particle. The utility model can increase the mixing uniformity of the graphene and plastic, improving the actual modification effect.