新型半干法烟气脱硫技术在煤粉锅炉上的工业应用  

The industrial application of a new semi-dry method flue gas desulfurization technology in pulverized coal fired boilers

作　　者：梁兴 

机构地区：[1]煤科院节能技术有限公司,北京100013 [2]煤炭资源高效开采与洁净利用国家重点实验室,北京100013 [3]国家能源煤炭高效利用与节能减排技术装备重点实验室,北京100013

出　　处：《煤质技术》2017年第6期65-67,72,共4页Coal Quality Technology

基　　金：北京市重大科技成果转化落地培育项目(Z161100004816012)

摘　　要：从脱硫原理、工艺流程等方面介绍适用于煤粉锅炉脱硫的新型半干法烟气脱硫技术,剖析了粉煤灰增湿循环、添加脱硫剂情况下煤粉工业锅炉的工业化运行状况,通过监测工业运行中的实际脱硫效率及其对比分析,摸索出最佳工业化运行参数:当增湿水量在686kg/h时添加少量脱硫剂,可使SO_2排放值稳定在300mg/m^3以下,满足地方环保排放标准;新型半干法脱硫技术的脱硫效率可达90%以上,若能控制原料煤的硫含量,则可在仅增大增湿水量的条件下满足地方排放标准。From aspects such as desulfurization principles and the process flow,the new semi dry flue gas desulfurization technology for desulfurization of pulverized coal fired boilers was introduced,the industrial operation circumstances of pulverized coal fired boilers under the conditions of pulverized coal ash humidification cycle and addition of desulfurization agent were analyzed,through monitoring the actual desulfurization efficiency and comparative analysis in industrial operation,the optimal industrial operation parameters were found out：when the humidifying water was 686 kg/h,adding a small amount of sorbent,SO2 emission was less than 300 mg/m^3, which could meet the local environmental emission standard;the desulfurization efficiency could reach more than 90%,if the sulfur content of the raw material can be controlled,the local emission standard could be met under the condition of only increasing the humidification water quantity.

关 键 词：半干法 脱硫 煤粉锅炉 工艺流程 运行参数 

分 类 号：X701.3[环境科学与工程—环境工程]