钙基复合添加剂与煤粉混烧的燃烧特性研究  

INVESTIGATION ON COMBUSTION CHARACTERISTICS CO-FIRING PULVERIZED COAL AND CALCIUM-BASED COMPOUND ADDIVTIVES

作　　者：刘豪[1] 邱建荣[1] 吴昊[1] 李骏[1] 董学文[1] 

机构地区：[1]华中科技大学煤燃烧国家重点实验室,武汉博士430074

出　　处：《煤炭转化》2002年第2期67-70,85,共5页Coal Conversion

基　　金：国家自然科学基金资助项目 (5 0 1760 15 );高等学校博士学科点专项科研基金资助项目 (2 0 0 10 4870 11)

摘　　要：采用热重法对煤粉中掺入钙基复合添加剂的燃烧特性进行了试验研究 .同时 ,在单角炉上研究了钙基复合添加剂对煤粉燃烧的影响 .试验结果表明 ,以煤粉单位重量计 ,当添加剂掺入量在 30 %以下时 ,对着火燃烧稳定性几乎无影响 ;当添加剂的掺入量在 30 %～ 5 0 %之间时 ,着火延迟 ,火焰滞后 ,但基本上能稳定燃烧 ;当添加量达到 5 0 %以上时 ,会造成燃烧不稳定甚至灭火现象 .还对其各种影响因素进行了探讨 .The combustion characteristics were investigated by the method of thermogravimetry analysis when combusting pulverized coal with calcium based compound additives;simultaneously the test was also carried out in a single burner furnace.The result of combustion test shows that there is no evident effect on ignition and combustion when the additive/coal (a/c) ratio is below 30 wt.%; and the normal stable combustion with ignition delay can be achieved when the a/c ratio is ranging between 30% and 50%; but the a/c rate exceeding 50% will damage combustion and even result in fire extinction.\;

关 键 词：热分析 钙基复合添加剂 煤粉 混烧 燃烧特性 

分 类 号：TQ534[化学工程—煤化学工程]