Drying device for producing petroleum additive

The utility model relates to the technical field of petroleum additive production, in particular to a drying device for producing a petroleum additive. The device comprises a drying box, and the center of the bottom of the drying box communicates with a discharging pipe; a feeding opening is formed in the top of the drying box, and the output end of the driving motor penetrates through the drying box to be connected with a rotating rod; a spiral blade is arranged at the lower end of the rotating rod and extends into the discharging pipe, a driving gear is further arranged on the rotating rod, and the rotating rod is in transmission connection with a stirring mechanism; a heating plate is arranged on the inner wall of the drying box, and an electric heating wire is arranged in the heating plate; a heating layer is fixedly installed on the outer side wall of the drying box, an inner cavity is formed in the heating layer, and a heating box is further arranged on one side of the drying box. According to the petro