| 摘要 |
PURPOSE: A pulverized coal burning nozzle having a pulverized coal separator is provided to expand the concentration control range of pulverized coals with only the nozzle by using the centrifugal force difference applied on pulverized coal particles and first air and accordingly to perform optimal combustion efficiency to various operation modes. CONSTITUTION: A pulverized coal burning nozzle having a pulverized coal separator is composed of an inner nozzle(18) passing cooling air, an outer nozzle(13) arranged at the outside of the inner nozzle and passed through with mixed air of pulverized coals and first air, and an inlet port(11) communicated with a side of the outer nozzle to flow in the mixed air in a perpendicular direction against an axial direction of the nozzle. In addition, the pulverized coal burning nozzle includes a venturi(14) formed in the middle inside of the outer nozzle, a cylindrical fixing separator(16) installed between the inner and outer nozzles at the lower end of the outer nozzle, an anti-swiveling plate(19) mounted at the lower part of the fixing separator, and a cylindrically variable separator(15) arranged between the fixing separator and the end of the venturi.
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