Abstract
The possibility of increasing the reactivity of low grade Kansk-Achinsk brown coal 2 BR from the Irsha-Borodino deposit due to mechanically activated micronizing by means of special mill disintegrators has been shown on the 5-MW experimental firing stand at the Institute of Thermophysics SB RAS (IT). This coal is used in the coal-fired PK-38 boiler of station 2B of the Krasnoyarsk State District Power Station-2 (SDPS-2). The experimental studies to ensure ignition and achievement of stable autothermal coal combustion have yielded the minimum operation time of the gas ignition device; to determine the effect of temperature on the ignition and combustion, the temperature of the burner muffle wall was controlled. In accordance with the experimental data on burning the coal with increased reactivity and the economic efficiency evaluation, the coal can be recommended for replacement of highly reactive fuel oil for ignition and lighting of the boiler considered.
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