The invention relates to a high-
sodium coal sodium removal, quality improvement fan mill pulverization and
water recovery combined cycle power generation system, which at least comprises a
drying pipe, a
coal mill, a pulverized
coal separator, a pulverized collector, a pulverized coal
bunker, an air and pulverized coal mixer and a boiler which are sequentially and serially connected. The
system additionally comprises a
mixing chamber, a
steam turbine, and a steam exhaust
waste heat recovery device, a steam exhaust condensation and
recovery device, a raw coal
sodium removal device, a separation device and a
water treatment unit which are sequentially connected. The
system has the advantages that the content of alkali metals in raw coal is reduced, the problems of furnace coking, heating surface
contamination and
corrosion and the like caused to a high-sodium-coal-fired power generator set are greatly improved or fundamentally solved, the
system is effective and applicable to quality improvement treatment of East Junggar coal and other high-sodium, high-water-content and poor-quality coal, the process is simple, the
operation safety is high, the investment is small, the energy is saved, the environment is protected, the goal of
circular economy is realized, and the system not only can be used for supplying high-quality
clean coal, but also can be used for high-sodium-coal-fired pithead power generator sets to realize coal and
electricity co-production.