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循环流化床(CFB)目前在国内迅速得到发展,但在实际运行中仍存在很多问题。本文简单介绍宁波亚洲浆纸业有限公司(NAPP)热电厂两台300T/H循环流化床锅炉非机械流通型密封槽(sealpot)固体物料回送装置的运行状况,在总结大量的试验研究,检修分析的基础上,从设计、燃烧调整、技术改造各方面,对于如何预防和处理密封槽回料异常及故障进行详细的讨论分析,为提高锅炉安全、经济运行提出参考意见。
Circulating fluidized bed (CFB) is rapidly developed in China at present, but there are still many problems in actual operation. This article gives a brief introduction of the operating status of non-mechanical circulation sealpot solid material return devices of two 300T / H circulating fluidized bed boilers in Ningbo Asia Pulp & Paper Industry Co., Ltd. (NAPP), and summarizes a large number of experimental studies and maintenance analyzes , From the aspects of design, combustion adjustment and technical transformation, the paper discusses and analyzes in detail how to prevent and deal with the abnormalities and failures of seal groove material feeding, and puts forward suggestions for improving boiler safety and economic operation.