Energy-saving control device of belt conveyor group

The utility model provides an energy-saving control device of a belt conveyor group. The energy-saving control device comprises a belt conveyor group including a plurality of belt conveyors, each belt conveyor is provided with a slave controller which is connected with the same one master controller interactively; an input end of each slave controller is connected with output ends of a material sensor, a belt speed sensor, an emergency stop sensor and a performance detection unit which are arranged on each belt conveyor, an output end of each slave controller is connected with an on/off key of each belt conveyor. The slave controller of each belt conveyor in the device is connected with the master controller interactively, the practical time of the prior belt conveyor is used as the starting delay time of a second belt conveyor, so that the starting or stopping time of each belt conveyor is accurate, the idle possibility of the belt conveyors can be avoided, the transportation efficiency can be improved, the normal and effective transportation mode can be ensured, energy resources can be saved, and the service period of the belt conveyors can be prolonged.