The design principle and research method of furnaceentering coal quality monitoring system for utility boilers have been expounded

the hardware and software structure

as well as the working principle of them for the said system being presented. The results of field application in Shiheng Power Plant show that the said system can more accurately measure the quality of furnaceentering coal in realtime

the accuracy of measurement satisfying the field requirements

having obvious energysaving effect

enhancing effectively the safety and economic behavior in operation of units.