Energy-saving control device for coal mine transportation system and method thereof

The invention discloses an energy-saving control device for a coal mine transportation system and a method thereof. The energy-saving control device comprises a plurality of explosion-proof energy-saving control substation boxes, a plurality of first level instruments, a plurality of second level instruments, a plurality of third level instruments and a ground operation table. The energy-saving control method comprises the following steps: (1) starting up along a coal flow; and (2) starting a gate road belt conveyor at first, starting a large lane second section belt conveyor when coal amount exists in the gate road belt conveyor, starting a large lane first section belt conveyor when the coal amount exists in the large lane second section belt conveyor, starting a main well belt conveyor when the coal amount exists in the large lane first section belt conveyor, and starting a upper bin belt conveyor when the coal amount exists in the main well belt conveyor. According to the energy-saving control device for