The utility model provides a
flame-retardant plastic
composite material preparation device, which relates to the technical field of plastic preparation and comprises a stirring motor, a
grinding pipe, a heating protective shell, an
inductance coil, a rotating rod, a movable
grinding disc, a static
grinding seat, a stirring rod, a screw rod and a motor, the back plate is fixedly connected with the conveying
pipe through a bolt; the stirring motor is connected to the upper side face of the supporting frame through bolts. The top end of the rotating rod is fixedly connected to a
motor shaft of the stirring motor through a key; the movable
millstone is nested on the outer side surface of the rotating rod, and the movable
millstone is welded with the rotating rod; the outer side face of the static grinding base is welded to the inner side face of the grinding
pipe. A stirring rod is welded and connected to the outer side surface of a rotating rod; the heating protective shell is in sliding connection with the conveying pipe; and through the arrangement of a stirring motor, a movable grinding disc, a static grinding seat and a stirring rod,
flame-retardant materials are more uniformly distributed in the plastic, and the problem that plastic particles and
flame-retardant compounds cannot be fully mixed in the traditional preparation process of the flame-retardant plastic is solved.