稻壳内混式循环流化床燃烧试验研究  

Experimental Study on Mix-combustion of Rice Hulls in Circulating Fluidized Bed

作　　者：张强[1] 高胜斌[1] 蔡世林[1] 

机构地区：[1]上海发电设备成套设计研究院,上海200240

出　　处：《工业锅炉》2011年第2期5-9,共5页Industrial Boilers

摘　　要：在循环流化床燃烧试验台上对稻壳的燃烧特性进行了冷热态试验研究,冷态试验确定了稻壳与河砂按一定比例掺混后的临界流化风速与单一稻壳的流化风速基本一致,且稻壳流化范围较窄。通过热态试验确定了适合稻壳燃烧的流化速度应为1~2.5 m/s,同时为提高稻壳燃尽效率应尽量提早给入一部分二次风。试验结果表明,一二次风比例为7∶3时可以达到较高的燃烧效率。Undertook some pilot studies of combustion on rice hulls,to build a circulating fluidized-bed combustion test bench.First,through the cold test,got the critical fluidization criterion correlations of rice hulls and river sand mixing of a certain proportion,then through the thermal test to determine the flow rate of rice hulls suitable for 1~2.5 m/s,it can achieve the best combustion results if the primary and secondary air ratio is 7∶ 3.

关 键 词：稻壳燃烧 循环流化床 临界流化风速 热态试验 

分 类 号：TK229.66[动力工程及工程热物理—动力机械及工程]