PLANT FOR NO-OIL STARTING OF PULVERIZED-FUEL BOILER AND ILLUMINATION OF FLAME PATTERN Russian patent published in 1999 - IPC

FIELD: power engineering; starting power and hot-water boilers and regulating pulverized-fuel flame pattern. SUBSTANCE: external end of output electrode 5 of plasma generator 3 is spaced from point of intersection of plasma generator axis and extension of external surface of fuel pulverizing chamber 1 abutting against pipe connection 2 through distance L = (0.8 - 1)d₂, where d₂ is diameter of output electrode channel at external end. Angle α between plasma generator axis and fuel pulverizing chamber axis is 30 to 150 deg. depending on quality of coal used. EFFECT: improved service life and reduced power requirement of plant. 4 cl, 1 dwg