Device and method for treating dirt in hinge shaft sealing groove

The invention discloses a treatment device for dirt in a sealing groove of a trunnion shaft, and relates to the technical field of trunnion shafts. The treatment device for dirt in the hinged shaft sealing groove comprises a concrete wall and a construction platform, a supporting steel beam is arranged on the inner wall of the concrete wall, a hinged support is arranged on the outer wall of the supporting steel beam, a gate supporting arm is arranged on the outer wall of the hinged support, and the end, away from the hinged support, of the gate supporting arm is connected with a gate leaf. A supporting arm fixing device is arranged on the outer wall of the bottom of the concrete wall, a hinged shaft is arranged on the inner wall of the hinged support, a first lifting lug is fixedly connected to the outer wall of one side of the hinged shaft, shaft stopping plates are fixedly connected to the position, located on the outer wall of the hinged shaft, of the outer wall of the hinged support, and a steel plate is