Automatic unblocking device for deslagging pipe of circulating fluidized bed boiler

The utility model discloses an automatic dredging device for a deslagging pipe of a circulating fluidized bed boiler. The device comprises a dredging device, a propelling device, a rotary driving device, a PLC (Programmable Logic Controller) control system and a power supply, the dredging device comprises a dredging pipe and a spring pipe; an electric gate valve is arranged on the dredging pipe; the front end of the bourdon tube is rotatably connected with a drill bit, and the bourdon tube extends into the dredging tube and the deslagging tube; a plurality of horizontally arranged guide wheel groups, a first driving motor and a meter counter are arranged in the propelling device; each guide wheel set is composed of an upper guide wheel and a lower guide wheel, and the spring tube is located between the upper guide wheel and the lower guide wheel. The spring tube is connected with a shell of the rotary driving device through a connecting sleeve, the rotary driving device is provided with a second driving motor