Operation method of circulating fluidized-bed boiler
A technology of circulating fluidized bed and fluidized bed boiler, which is applied in the direction of fluidized bed combustion equipment, combustion method, and fuel burned in a molten state, to achieve the effect of saving equipment maintenance costs and costs
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[0009] The 300,000 kilowatt circulating fluidized bed boiler uses lignite from Yunnan Xiaolongtan Coal Mine as coal. The coal quality information is shown in the following table:
[0010]
[0011] Technical transformation of the coal handling system was carried out. Eight cage-type fine crushers (large and small) of the coal handling secondary crushing system were dismantled, and the coal particle size was crushed to less than 50mm, directly sent to the furnace, and the furnace was kept when the boiler was working The lower bed pressure reaches 11KPa, and the residence time of coal particles in the furnace is 20min. This not only saves plant electricity, optimizes the bed pressure and bed temperature control of the 300,000 kilowatt circulating fluidized bed boiler, and ensures the safe long-term operation of the 300,000 kilowatt circulating fluidized bed boiler.
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