摘要
热风送粉、一次风集中布置的燃用劣质烟煤的锅炉 ,在煤的挥发分和热值提高后 ,存在着一次风喷口带火、燃烧器区域水冷壁结渣等影响锅炉安全性的问题 ,对此提出了在一次风中掺入乏气的解决办法。结合典型锅炉进行的设计计算 ,以及对乏气热风混合器的试验研究结果表明 ,乏气能在大比例范围内与热风混合 ,从而使本方案的实施成为可能。
In view of troublesome problems influencing upon the safety of lowgrade bituminous coal firing boilers with hot air for sending pulverized coal and centralized allocatioin of the primary air, such as firecarrying in the primary air jet orifice, and slagging on the waterwall in zone of burners etc., occured after enhancement of volatile and heat value in the coal, a scheme for solving the said problems by admixing exhaust gas has been put forward. The results of design calculation combined with typical boilers, as well as test and study on the admixer of exhaust gas and hot air show that the exhaust gas can be admixed with hot air in a large proportional range, making the implementation of the said scheme to be possible.
出处
《热力发电》
CAS
北大核心
2003年第11期67-69,共3页
Thermal Power Generation
