链条锅炉的燃烧状态好坏关键是炉拱。而后拱又是主要的,它起着新燃料的引燃和促进炉内烟气混合的作用。对于燃烧劣质煤和难燃煤种的链条锅炉来讲,炉拱的优劣对于锅炉的燃烧效率和出力有决定性的影响。通过多年的改炉和运行实践证明,改善炉拱的布置是提高锅炉燃烧效率和扩大锅炉燃煤范围以及提高出力的最有效措施。 The key to good and bad chain boiler combustion status is the furnace arch. And then the arch is the main one, it plays the role of igniting the new fuel and promoting the flue gas mixing in the furnace. The advantages and disadvantages of the furnace arch have a decisive influence on the combustion efficiency and output of the boiler for the chain boiler burning low-grade coal and hard coal. After many years of furnace improvement and operation practice, it has been proved that improving the layout of the furnace arch is the most effective measure to improve the combustion efficiency of the boiler and to expand the range of the boiler coal and increase the output.