Sliding rod sealing device for waste incineration treatment of harmful gas

The utility model discloses a sliding rod sealing device for waste incineration disposal of harmful gas. Relating to the technical field of gas sealing, the sliding rod sealing device comprises a sliding rod sealing device body for waste incineration disposal harmful gas. The device comprises a sliding rod doing three-dimensional motion, an air sealing ring assembly, a floating ring sealing assembly and a sealing box assembly. The air seal ring assembly, the floating ring sealing assembly and the sealing box assembly are matched with one another. The three-dimensional sealing device further comprises a lubricating gasket assembly which is arranged between the air sealing ring assembly and the floating ring sealing assembly and between the air sealing ring assembly and the sealing box assembly, and the lubricating gasket assembly comprises a first lubricating gasket and a second lubricating gasket. According to the sealing device, the air seal ring assembly, the floating ring sealing assembly, the pull rod str