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为解决锅炉燃料热值下降带来的问题,在328 MW煤粉锅炉上进行了石油焦与烟煤的掺烧试验.结果表明:掺入20%石油焦,可使燃料热值明显提高,且不会对着火产生明显影响.掺入位置对锅炉燃尽特性影响很大,仅在下两层磨煤机掺入石油焦时,飞灰含碳量变化很小;当石油焦比例增加或在上层磨煤机也掺入石油焦时,飞灰含碳量明显增加.
In order to solve the problems caused by the drop of heating value of boiler fuel, the co-firing experiment of petroleum coke and bituminous coal was carried out on a 328 MW pulverized coal fired boiler.The results showed that the heating value of fuel increased obviously with 20% Will have a significant impact on the fire. Incorporation of the location of the boiler burnout characteristics of a great influence, only in the next two layers of coal mill mixed with petroleum coke, the carbon content of fly ash changes is small; when the proportion of petroleum coke or in the upper mill Coal also incorporates petroleum coke, the carbon content of fly ash increased significantly.