高效煤粉工业锅炉与水煤浆工业锅炉的对比分析

Comparison between high efficient pulverized coal industrial boiler and CWM industrial boiler

煤粉工业锅炉与水煤浆工业锅炉是目前中国中小型燃煤锅炉最现实的替代炉型。从原料煤选择、工艺技术及装备、运行成本和安全生产等多方面对这两类系统技术进行了详细对比分析。结果表明:高效煤粉工业锅炉用煤主要以褐煤和长焰煤为主,受制浆浓度的约束,除褐煤以外的大多数煤种均可用于水煤浆工业锅炉;煤粉工业锅炉的初投资比水煤浆工业锅炉高约25%,但锅炉效率要高一些,运行费用比水煤浆工业锅炉低约34%;水煤浆工业锅炉的负荷调节能力要强于煤粉工业锅炉。因此应结合中国煤炭资源的分布及利用情况,并充分考虑实施地的煤炭运输条件及环境,选择合理、经济的锅炉系统技术。

High efficient pulverized coal industrial boiler and CWM industrial boiler is the most practical substitute for medium and small coal fired boiler in China. Compare these two kinds of systems from the aspects of raw coal selection, process technology and equipments, operation cost and safety. The results illustrate that long flame coal and lignite are mainly used for high efficient pulverized coal industrial boiler. Due to concentration requirement, most of coal type except lignite could apply to CWM industrial boiler. The high efficient pulverized coal industrial boiler has greater efficient, whose investment is higher about 25 percent than that of CWM industrial boiler, operation cost is lower about 34 percent, load regulation capability is poorer. So the selection of proper boiler should consider coal resources distribution and utilization as well as transportation conditions.