| Circulating Fluidized-Bed Combustion(CFBC)boilers have been developed since the 1950s. They have been widely used in firing lower-grade coals in China and abroad. After decades of using this combustion technology, experience to keep CFBC boilers in normal operation has been obtained. Among those, the balance of circulating materials, the balance of heat transfer in the combustion system, and the relatively higher combustion efficiency are the most important factors to keep CFBC boilers operate normally. In this paper, these factors are discussed and summarized in detail. |