A new fluidization-suspension combustion technology for coal water slurry

作者:Wang, Hui*; Jiang, Xiumin; Zhang, Minxiao; Ma, Yufeng; Liu, Hui; Wu, Shaohua
来源:Chemical Engineering and Processing, 2010, 49(10): 1017-1024.
DOI:10.1016/j.cep.2010.07.009

摘要

Slagging is a major operating problem in application of the atomization-suspension combustion technology for burning coal water slurry (CWS) fuel in small and low height industrial boilers The fluidization-suspension combustion is a new alternative for replacement of oil which is capable of solving the slagging problems In addition it can be successfully applied to CWS-fired boilers with capacity smaller than 35 t/h About 530 000 medium and small scale industrial boilers with low boiler efficiency in China provide the technology a very promising prospect The principles and contents of CWS fluidization-suspension combustion technology are introduced in detail in this paper And a new type of 14 MW fluidization-suspension CWS-fired boiler was developed the performance of which showed that boiler efficiency was 91 53% Emission of SO2 and NOx was 346 1 mg/m(3) and 469 5 mg/m(3) respectively From the application the CWS-fired boiler showed good features such as high