高倍率循环流化床锅炉在半焦燃烧领域中的应用

燃料与化工 ›› 2021, Vol. 52 ›› Issue (1): 5-8.

高倍率循环流化床锅炉在半焦燃烧领域中的应用

宋伟娟

青岛特利尔环保集团股份有限公司，青岛266073

出版日期:2021-01-23 发布日期:2021-01-11

Application of high-rate circulating fluidized bed boiler in semi-coke combustion

Song Weijuan

Qingdao Clear Environmental Group Co.,Ltd.,Qingdao 266073,China

Online:2021-01-23 Published:2021-01-11

摘要/Abstract

摘要：

介绍了利用高倍率循环流化床锅炉试烧半焦的实际运行情况，主要从运行调整、锅炉能效及环保性能等方面展开讨论。经测试证明，高倍率循环流化床锅炉燃烧半焦的锅炉效率可达88%~90%；氮氧化物的原始排放高于锅炉的原始性能，需要采取SNCR、SCR等措施满足环保要求；二氧化硫的原始排放极低，环保设备无需投用即可满足环保要求。经分析，选择合适的进料粒度分布和空气过量系数，是提高燃半焦循环流化床锅炉效率的有效措施，对燃半焦锅炉的研发和运行有借鉴意义。

关键词: 半焦燃烧, 循环流化床锅炉, 锅炉效率, 环保性

Abstract:

This paper introduces the actual situation of the experimental burning of the semi-coke by using a high-rate circulating fluidized bed boiler.Discussion mainly focuses on operation adjustment,boiler energy efficiency and environmental performance,etc..Test result shows that the thermal efficiency of the semi-coke fired high-rate circulating fluidized bed boiler can reach up to 88%~90%;NOx emission concentration is higher than the designed emission limit of the boiler,which should needs to take measures such as SNCR and SCR to meet the requirement for environmental protection;the emission of SO2 is extremely low,thus there is no need to use environmental equipment.After analysis,selecting an appropriate feed particle size distribution and the air excess coefficient are effective measures to improve the efficiency of the semi-coke fired circulating fluidized bed boiler so as to provide suggestive ideas for development and operation of the semi-coke fired boiler.

Key words: Combustion of semi-coke, Circulating fluidized bed boiler, Thermal efficiency of boiler, Environmental benefits

宋伟娟. 高倍率循环流化床锅炉在半焦燃烧领域中的应用[J]. 燃料与化工, 2021, 52(1): 5-8.

Song Weijuan. Application of high-rate circulating fluidized bed boiler in semi-coke combustion[J]. FUEL & CHEMICAL PROCESSES, 2021, 52(1): 5-8.