The boilers no.1 and no.2 in Laibin Power Plant were originally designed to burn bituminous coal

it is intended to mixedly burn a part of anthracitic coal for suitability in variation of the coal market.Taking the coal sorts intended to mexedly burn in Laibin Power Plant as the object

the combustion characters of coal samples has been analysed by using coal quality index

the structural characters of boilers being analysed and judged by using structural index of boilers

and the two kinds of characters being coupled together

the boiler constants

such as stability constant

burn-away constant

and slagging constant of boilers have been given.Based on the obtained constants of boilers

the adaptability of intended to mixedly burn coal sorts used for boilers have been determined.Through comprehensive consideration

the proportioning ratio of anthracitic coal with bituminous coal shouldn't exceed 5∶5.