层燃炉内高温燃烧脱硫热工环境的研究  

THERMAL ENVIRONMENT FOR DESULFURIZATION DURING COAL COMBUSTION IN THE GRATE FURNACES

作　　者：程军[1] 曹欣玉[1] 宋玉彩[1] 刘建忠[1] 范红宇[1] 周俊虎[1] 岑可法[1] 

机构地区：[1]浙江大学能源清洁利用与环境工程教育部重点实验室,浙江杭州310027

出　　处：《中国电机工程学报》2002年第10期142-147,共6页Proceedings of the CSEE

基　　金：国家重点基础研究发展规划项目(G1999022204);高等学校骨干教师资助计划项目 ~

摘　　要：为满足燃烧脱硫研究的需要,该文探讨了链条炉内温度及气氛分布的规律。研究发现:在链条炉排中部的火床煤层和燃烧烟气空间内,温度分布沿高度方向均先升高后降低,整体呈现双峰规律。煤层上部烟气中的SO2浓度沿炉排移动方向亦先升高后降低,在炉排中部剧烈燃烧区达到最大。将添加剂喷射至炉膛烟气空间比掺混在火床煤层内部具有更好的脱硫效果。To meet the demand of research ondesulfuriza-tion during coal combustion, the characteristics of tempera-ture and gas composition distribution in the traveling grate furnaces are discussed in this paper. It is found that both temperatures of the coal bed and the combustion gas firstly rise and then decline in the height direction, forming twotemperature peaks on the whole. The SO2 concentration in the combustion gas above the coal bed also firstly rises, thendeclines along the traveling grate and reaches maximum near the midpoint of the grate. Injecting the sorbents into thecombustion gas can achieve higher sulfur removal efficiency than blending the sorbents with the coal.

关 键 词：电站 二氧化硫污染 层燃炉 煤燃烧 脱硫 热工环境 

分 类 号：X773[环境科学与工程—环境工程]