动力工程学报
動力工程學報
동력공정학보
JOURNAL OF POWER ENGINEERING
2012年
8期
654-660
,共7页
吴海龙%肖惠平%王武忠%张云卿%蒋旭光%李晓东
吳海龍%肖惠平%王武忠%張雲卿%蔣旭光%李曉東
오해룡%초혜평%왕무충%장운경%장욱광%리효동
生活垃圾%流化床%焚烧炉%PCDD/Fs%活性炭
生活垃圾%流化床%焚燒爐%PCDD/Fs%活性炭
생활랄급%류화상%분소로%PCDD/Fs%활성탄
municipal solid waste fluidized bed incinerator PCDD/Fs activated carbon
为了评估生活垃圾流化床焚烧炉的运行条件对PCDD/Fs生成与排放的影响,在不同燃烧温度和活性炭喷射条件下,分别对4个不同处置能力的典型流化床焚烧炉系统不同点位的PCDD/Fs进行了采样分析和研究.结果表明:尽管燃烧温度对PCDD/Fs的生成影响很大,但并不是影响二嗯英最终排放的主要原因,烟气流经净化设备时PCDD/Fs的低温异相生成反应是二嗯英超标排放的主要原因.布袋除尘器的使用年限对PCDD/Fs的排放控制有重要影响,新安装的布袋除尘器能够很好地控制PCDD/Fs的排放,较旧的布袋除尘器由于“记忆效应”,其PCDD/Fs的脱除能力较弱,甚至会产生负的脱除效率.
為瞭評估生活垃圾流化床焚燒爐的運行條件對PCDD/Fs生成與排放的影響,在不同燃燒溫度和活性炭噴射條件下,分彆對4箇不同處置能力的典型流化床焚燒爐繫統不同點位的PCDD/Fs進行瞭採樣分析和研究.結果錶明:儘管燃燒溫度對PCDD/Fs的生成影響很大,但併不是影響二嗯英最終排放的主要原因,煙氣流經淨化設備時PCDD/Fs的低溫異相生成反應是二嗯英超標排放的主要原因.佈袋除塵器的使用年限對PCDD/Fs的排放控製有重要影響,新安裝的佈袋除塵器能夠很好地控製PCDD/Fs的排放,較舊的佈袋除塵器由于“記憶效應”,其PCDD/Fs的脫除能力較弱,甚至會產生負的脫除效率.
위료평고생활랄급류화상분소로적운행조건대PCDD/Fs생성여배방적영향,재불동연소온도화활성탄분사조건하,분별대4개불동처치능력적전형류화상분소로계통불동점위적PCDD/Fs진행료채양분석화연구.결과표명:진관연소온도대PCDD/Fs적생성영향흔대,단병불시영향이은영최종배방적주요원인,연기류경정화설비시PCDD/Fs적저온이상생성반응시이은영초표배방적주요원인.포대제진기적사용년한대PCDD/Fs적배방공제유중요영향,신안장적포대제진기능구흔호지공제PCDD/Fs적배방,교구적포대제진기유우“기억효응”,기PCDD/Fs적탈제능력교약,심지회산생부적탈제효솔.
To evaluate the effects of operation conditions on formation and emission of PCDD/Fs from fluid- ized bed municipal solid waste (MSW) incinerators, the PCDD/Fs samples taken from different areas of four typical fluidized bed incinerators with different treatment capacities were analyzed and studied. Re- sults show that the combustion temperature plays a role in influencing the PCDD/Fs formation, but it is not the main influencing factor for final emission of PCDD/Fs. The PCDD/Fs, formed in heterogeneous reaction at low temperature during flue gas passing through the purification devices, contributes to the o- verall emission of PCDD/Fs. The service age of bag filters is a key factor highly affecting the PCDD/Fs e- mission. New bag filters are quite effective on control of PCDD/Fs emission, but aged bag filters have poor and even negative effect in PCDD/Fs removal, due to its "memory effect".