Waste plastic combustion pretreatment device

The utility model discloses a waste plastic combustion pretreatment device which comprises a drying system, a smashing system, a pressurization system, an air supply system, a mixing system and an injection system. And the drying system is used for drying the waste plastics. And the crushing system is connected with the drying system and is used for crushing the waste plastics. The pressurization system is connected with the smashing system and used for conducting pressurization treatment on the waste plastics. The gas supply system is used for providing gas. The mixing system is connected with the pressurization system and the gas supply system at the same time and used for mixing the waste plastics with gas provided by the gas supply system. And the injection system is connected with the mixing system and is used for injecting the mixed waste plastics and the gas provided by the gas supply system together. Compared with the prior art, the waste plastic combustion pretreatment device has the advantage that w