Gas pulse ash dredging device based on PLC (Programmable Logic Controller)

The utility model discloses a PLC-based fuel gas pulse ash dredging device which comprises a supporting shell, a driving motor is fixedly installed on the top face of the supporting shell, the output end of the driving motor extends into the supporting shell and is provided with a driving gear, the outer side of the driving gear is meshed with a driven gear, a T-shaped groove is formed in the bottom face of the supporting shell, and the T-shaped groove is internally provided with an air inlet and an air outlet. And a T-shaped sliding block is slidably connected to the interior of the T-shaped groove, and an annular rack is fixedly installed on the bottom face of the T-shaped sliding block. According to the cleaning brush disc, the inserting groove, the inserting rod, the movable plate and the limiting spring are arranged and used in cooperation, when the cleaning brush disc needs to be maintained and replaced, a worker lifts the movable plate upwards, the movable plate drives the inserting rod to move out of