The ignition

burnout

and slagging performance of Baoqing lignite raw coal and its dried lignite with different moisture contents was experimentally investigated using an ignition furnace and one-dimensional furnace test platform. The results show that

the ignition temperature of Baoqing raw coal is 415 ℃

which is highly prone to ignition. Compared to the influence of moisture on ignition temperature

the effect of fineness on ignition temperature is more significant. At low loads

the water and steam react with the water gas of coke in the early stages of combustion

which has a significant impact on the consumption rate of coke. Due to its high moisture content

raw coal undergoes intense reactions during the initial combustion stage

resulting in a rapid decrease in mass fraction of combustible materials in fly ash and a stronger tendency towards slagging. However

excessive moisture is not conducive to the complete combustion of coal powder in the later stage of combustion. As the fineness of coal powder R_(90) increases

the burnout rate of coal powder decreases. But overall

the burnout rate of both Baoqing raw coal and dry coal is above 99%

indicating the Baoqing coal is highly flammable

and the effect of oxygen on burnout rate is not significant.