集消烟除尘于一体的新型二次风装置  

A New Integrated Secondary Air Device for Smoke Prevention and Dust Control

作　　者：孙佰仲[1] 王擎[1] 刘向莉[1] 崔玉萍[1] 孙东红[1] 孙键[1] 

机构地区：[1]东北电力学院动力系,吉林吉林132012

出　　处：《锅炉技术》2005年第2期1-3,60,共4页Boiler Technology

基　　金：国家教委重点资助项目(02043);浙江大学能源洁净利用与环境工程教育部重点实验室开放基金(200205)

摘　　要：针对传统层状燃煤锅炉效率低、烟尘排放严重超标两大主要问题,提出了在煤层上部空间采用“多孔分层错列射流式”二次风组织空间燃烧,并在同一台“0.3 t/h立式锅炉”上进行了煤气化—无烟燃烧和普通手烧2种运行方式的对比性工业性试验。试验结果表明,在无炉外除尘器情况下实现了排烟无色、烟尘排放浓度符合国家环保标准GWPB3-1999中一类区要求,该新型二次风装置可有效地实现炉内消烟除尘。A new integrated secondary air device, that is multi-orifices stratification and stagger-arrangement jet secondary air, was put forward to organize upper space combustion based on two main problems of low thermal efficiency and serious smokes emission for traditional layer coal-fired industrial boilers. The new secondary air theory was discussed and the comparative industrial experiments between the coal gasification-smokeless combustion and the traditional hand-fired fashion have been conducted at the same 0.3 t/h vertical hand-fired boiler. It showed that the smoke self-prevention and dust self-control was obviously obtained and smokes discharge could accord with Ⅰ class region given in GWPB3-1999 environmental protection standard under directing burning raw coal. It is rather effective to eliminate black smoke and to decrease dust and NO x emission.

关 键 词：层状燃烧 二次风 煤气化 无烟燃烧 消烟除尘 

分 类 号：TK223.27[动力工程及工程热物理—动力机械及工程]