A system for measuring micro-fine pulverized-coal particle charge-to-mass ratio distribution

The utility model discloses a system for measuring micro-fine pulverized-coal particle charge-to-mass ratio distribution. The system comprises a particle friction charging device, a particle electrical field separation device, and a particle charge-to-mass ratio measurement device, wherein the particle friction charging device comprises a feeding cylinder and a vibrating feeder, and the feeding cylinder is connected with the feed end of the vibrating feeder; the particle electrical field separation device comprises two insulating plates with adjustable separation distance, a particle separation chamber is formed between the insulating plates, electrode plates are arranged on the outer sides of the insulating plates and connected with a high-voltage power supply through wires, a feeding funnel is arranged at the top of the particle separation chamber and connected with the discharging end of the vibrating feeder; and the particle charge-to-mass ratio measurement device comprises a plurality of charge-to-mass r