Pipeline dredging system of dense medium shallow slot sorting machine and control method of system

The invention provides a pipeline dredging system of a dense medium shallow slot sorting machine and a control method of the system. The system comprises a blockage detection subsystem and a blockage dredging subsystem, and the blockage detection subsystem is used for collecting blockage parameters of the dense medium shallow slot sorting machine and determining whether a pipeline of the dense medium shallow slot sorting machine is blocked or not according to the blockage parameters; the blockage dredging subsystem is in communication connection with the blockage detection subsystem, the blockage dredging subsystem is used for dredging blockages under the condition that the pipeline of the dense medium shallow slot sorting machine is blocked, and the dredging modes comprise one or more of electromagnetic dredging and resonance dredging. Whether the pipeline is blocked or not is determined by detecting the capacitance and/or flow in the pipeline, and if the pipeline is blocked, blockages can be dredged in an e