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豫联电厂循环流化床锅炉存在播煤风管道布置、风帽选型、锅炉床温低、冷渣器及气力输送系统不畅的问题。在分析了发生上述问题的原因后,通过对播煤风系统进行改造、全部更换原风帽、对煤质进行调整、调整粗碎机的间隙、调整二次风和播煤风风量、控制炉膛出口含氧量、对原煤仓优化改造、增大一次风量和锥形阀吹扫风量、定期清理缓冲斗、采取必要的防磨措施等优化改进措施后,解决了风室漏床料的问题;消除了管道堵塞、使机组能安全、稳定、经济运行。
Yulian Power Plant circulating fluidized bed boiler sowing air duct layout, selection of hood, the boiler bed temperature is low, slag cooler and pneumatic conveying system is not the problem. After analyzing the reasons for the above problems, we changed all the original wind caps, adjusted the quality of coal, adjusted the clearance of coarse crusher, adjusted the air volume of secondary air and sowing air, and controlled the outlet of furnace Oxygen content, optimization of the original coal warehouse, an increase of air volume and the amount of conical valve purge air, regularly cleaning buffer hopper, take the necessary measures such as anti-wear optimization and improvement measures to solve the air leakage of the material bed; Elimination The pipeline blockage, so that the unit can be safe, stable and economical operation.