Automatic ash removal device and method for carbon calcination flue gas SCR (selective catalytic reduction) denitration catalyst

According to the automatic ash removal device and method for the carbon calcination flue gas SCR denitration catalysts, in the device, catalyst gaps exist between the adjacent SCR denitration catalysts and between the SCR denitration catalysts and a shell; every two filter screens are obliquely arranged on a single SCR denitration catalyst to form a triangular structure, a catalyst gap is covered with the blocking plate, and based on rotation of the connecting rod, the blocking plate is lifted to open the catalyst gap and descends to close the catalyst gap; in response to the pressure difference data, the control system judges that the dust accumulation state of the filter screen exceeds a preset range, sends a dust blowing signal to the shock wave dust blowing device to execute dust blowing operation and sends a lifting signal to the execution motor, and the blocking plate is lifted along with rotation of the connecting rod to open a catalyst gap; dust passes through the catalyst gap to be discharged out of