A single-screw extruder

The present invention discloses a single screw extruder, including extruder frame, the drive motor, flexible coupling, gear box, liner, cutting the seat, and the screw barrel, the extruder frame provided with a drive motor, said driving motor and gear box is connected via an elastic coupling, said gear box and the screw connection, the screw and barrel is provided in the liner, the liner is provided there cutting seat, said single-stage reduction gear box, and a damper mechanism, the screw length is 35: 1 to 40: 1. The present invention is energy efficient and can increase productivity, reduce noise.