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非金属极板湿式电除尘器在烧结烟气二次除尘改造中的应用

[2018-4-2] 点击:

湿电咨询服务: 陶经理18332815001 张经理18633235200

ZHAIYAO:SHAOJIEYANQICHUCHENYIZHISHIYIGEXINGYEBIJIAOGUANZHUDEWENTI,MOUXIEDIFANGBIAOZHUNGUIDINGQIYANCHENPAIFANGXIANZHIWEI20mg/Nm3,MUQIANDABUFENSHESHIDOUWUFADADAOZHEIYIMUBIAO,ZHEIJIUXUYAOJINXINGERCICHUCHENGAIZAO.FEIJINSHUJIBANSHISHIDIANCHUCHENQIYITADUTEDEYOUSHIZAISHAOJIEYANQIDEERCICHUCHENGAIZAOZHONGYIDEDAOGUANGFANYINGYONG,ZHENDUITUOLIUHOUYANQIJINYIBUCHUCHENCHUWU,SHICHUKOUYANCHENMANZUYAOQIU,BINGYOUXIAOHUANJIEYANCONG"DABAIYAN"XIANXIANG.SHIJIGONGZUOZHONGYINGCONGJIAQIANGLIANHELIANDONGGAIZAO、YOUHUAQILIUFENBU、YOUHUACHONGXIPEIZHIYIJIQIANGDIAOSHIGONGANZHUANGZHILIANGFANGMIANZHESHOU,CUJINSHISHIDIANCHUCHENQIGAIZAOXIANGMUDESHUNLISHISHI.

1烧结烟气的特点

SHAOJIEYANQISHIZHIZAISHAOJIEJISHANGGEZHONGFENZHUANGHANTIEYUANLIAO、RANLIAOHERONGJIDIANHUORONGHUA、GAOWENSHAOJIECHENGXINGGUOCHENGZHONGSUOCHANSHENGDEHANYOUDUOZHONGWURANWUDEYANQI,TAYUQITAGONGYEYANQIXIANGBIJUYOUJIAODADEBUTONG:

1.1烟气量大,变化幅度大,分布不均

YOUYULOUFENGLVGAOHEGULIAOXUNHUANLVGAO,YOUXIANGDANGYIBUFENKONGQIMEIYOUTONGGUOSHAOJIELIAOCENGJIUPAICHU,SHISHAOJIEYANQILIANGDADAZENGJIA,MEICHANSHENGYIDUNSHAOJIEKUANGDAYUECHANSHENG4000~6000m3SHAOJIEYANQI,DANWEIPINGFANGSHAOJIEMIANSHANGNENGCHANSHENGYUE6000~9000m3/hDEYANQILIANG。TONGSHIYOUYUSHAOJIELIAOTOUQIXINGDECHAYIHEPULIAOBUJUNDENGYUANYIN,ZAOCHENGSHAOJIEYANQIZULIBIANHUADA,CONGERDAOZHIYANQILIANGBIANHUAFUDUDA,ZUIGAOKEDA40%YISHANG。JITOUHEJIWEIXIANGCHAJIAODA。

1.2烟气成分复杂,含尘量高

SHAOJIEYANQIHANYOUHCl、HF、NOxDENGDUOZHONGFUSHIXINGQITIHEQIAN、GONG、GE、XINDENGDUOZHONGZHONGJINSHUWURANWU。YANQIHANCHENLIANGGAO,LIDUXI,HANYOUYIDINGDEJIANXINGGAOZHANDUYANGHUAWU。MUQIANCAIYONGDECHUCHENSHEBEIZHUYAOYOUDIANCHUCHENQI、DUOGUANCHUCHENQIYIJISHAOLIANGDEDIANDAIFUHECHUCHENQI。

1.3烟温高、含湿量高、含氧量大

SHAOJIEYANQIWENDUGAO,YIBANWEI120~180℃,JITOUYANWENGAODA200℃。HANSHILIANGYUEWEI7%~13%,HANYANGLIANGWEI15%~20%。ZAICAIYONGBUDAICHUCHENQISHIYINGCHONGFENKAOLVQIHANSHILIANGDEYINGXIANG。

2湿式电除尘器的工作原理

GENJU《GANGTIESHAOJIE、QIUTUANGONGYEDAQIWURANWUPAIFANGBIAOZHUN》(GB28662-2012),SHAOJIEYANQIYANCHENPAIFANGBIAOZHUNWEI50mg/Nm3,DANYIXIEDIFANGBIAOZHUNLAIDEGENGJIAYANGE,LIRUSHANDONGSHENGGUIDINGSHAOJIEYANQIYANCHENPAIFANGXIANZHIWEI20mg/Nm3。SHAOJIEYANQIYOUYUHANYOUNa2O、K2ODENGGAOZHANDUDEJIANXINGYANGHUAWUKELI,ZAIDIANCHUCHENQIYUNXINGGUOCHENGZHONGJIYIZHANFUZAIJIBANJIXIANSHANG,YANZHONGYINGXIANGDIANCHUCHENQIXIAOLV。DUIYUDADUOSHUCAIYONGDIANCHUCHENQIDEXIANGMU,YANCHENPAIFANGNONGDUPINGJUNWEI100mg/Nm3,XIAOBUFENCAIYONGTAOCIDUOGUANCHUCHENQIDE,CHUKOUYANCHENNONGDUPINGJUNWEI150~300mg/Nm3,SHENZHIGENGGAO。

SHAOJIEYANQIJINGCHUCHENHOUJINRUSHIFATUOLIU(TONGCHANGWEISHIHUISHI/SHIHUI—SHIGAOFA),JINGGUOPENLINCHONGXIQUCHULEYIBUFENYANCHEN(QUCHULEYUE50%),DANTONGSHIYOUYUYANQIDEXIEDAI,JIANGJIANGYEZHONGDESHIGAOKELIDAICHU,GUDABUFENSHAOJIEYANQIZAIZONGPAIKOUDEPAIFANGNONGDUWUFAMANZU20mg/Nm3DEYAOQIU,XUYAOJINXINGERCICHUCHENGAIZAO。

MUQIANSHISHIDIANCHUCHENQIBEIGUANGFANYINGYONGYUSHAOJIEYANQIERCICHUCHENGAIZAOZHONG,GAISHEBEIBUZHIZAITUOLIUXITONGZHIHOU、PAIFANGZHIQIAN,JINYIBUQUCHUYANCHEN、QIRONGJIAOYIJIGEXIANGXIWEIKELI,JUYOUSHENDUJINGHUA、LIANHETUOCHUDEYIYI。SHISHIDIANCHUCHENQIDEZHUYAOGONGZUOYUANLI:JIANGSHUIWUPENXIANGFANGDIANJIHEDIANYUNQU,SHUIWUZAIMANGCIDIANJIXINGCHENGDEQIANGDADEDIANYUNCHANGNEIHEDIANHOUFENLIEJINYIBUWUHUA,DIANCHANGLI、HEDIANSHUIWUDEPENGZHUANGLANJIE、XIFUNINGBING,GONGTONGDUIFENCHENLIZIQIBUJIZUOYONG,ZUIZHONGFENCHENLIZIZAIDIANCHANGLIDEQUDONGXIADAODAJICHENJIERBEIBUJI。SHUIZAIJICHENJISHANGXINGCHENGLIANXUDESHUIMO,JIANGBUHUODEFENCHENCHONGSHUADAOHUIDOUZHONGSUISHUIPAICHU。GANSHIDIANCHUCHENQIYUSHISHIDIANCHUCHENQIBIJIAORUXIA:

(1)CHUCHENYUANLIDOUSHIDIANYUNFANGDIAN,QINGHUIFANGSHIZEBUTONG,BIAOXIANWEI“YIGANYISHI”;

(2)GANSHIDIANCHUCHENSHOUFENCHENBIDIANZUYINGXIANGJIAODA,YAOQIUFENCHENBIDIANZU104~1012Ω˙cm,SHISHIDIANCHUCHENSHIYONGYUBAOHESHIYANQIJIEZHI,FENCHENBIDIANZUBUSHOUXIANZHI;

(3)GANSHIDIANCHUCHENQICHUKOUFENCHENNONGDUJIXIANWEI5~20mg/Nm3,SHISHIDIANCHUCHENQICHUKOUFENCHENNONGDUJIXIANKEDIYU1mg/Nm3;

(4)SHISHIDIANCHUCHENQIJICHENMIANJIJIAOXIAO,NEIBUWUZHUANDONGBUJIAN,MIFENGXINGNENGJIAOHAO,SHOUMINGJIAOZHANG;

(5)SHISHIDIANCHUCHENQINENGYOUXIAOTUOLIUPM2.5,SO3QIRONGJIAOYIJIGONG,ERGANSHIDIANCHUCHENQIDUIYUPM2.5TUOLIUYOUXIAN,QIEWUFATUOCHUSO3QIRONGJIAOYIJIGONG。

3非金属极板湿式电除尘器的优势

SHISHIDIANCHUCHENQICONGJIEGOUSHANGKEFENWEILIANGZHONGJIBENXINGSHI,JIGUANSHIHEBANSHI。QIZHONGGUANSHISHISHIDIANCHUCHENQIZHIYOUCHUIZHIFANGXIANGYANQILIU(SHANGSHENGLIUHUOXIAJIANGLIU),ERBANSHISHISHIDIANCHUCHENQISHEJIJIKEYICAIYONGSHUIPINGYANQILIUYEKECAIYONGCHUIZHIYANQILIU。ZONGDELAI,GUANSHISHISHIDIANCHUCHENQIBIBANSHISHISHIDIANCHUCHENQIXIAOLVGENGGAOQIEYOUYUWAIXINGJIANDANERZHANYONGGENGSHAODEKONGJIAN,CHENGWEISHISHIDIANCHUCHENJISHUYINGYONGDEQUSHI。

CONGJIBANCAIZHISHANGFENLEI,SHISHIDIANCHUCHENQIKEYIFENWEIFEIJINSHUJIBANHEJINSHUJIBANLIANGDALEIXING。

JINSHUJIBANSHISHIDIANCHUCHENQIQIJIEGOUWAIXINGJIBENDENGTONGYUGANSHIDIANCHUCHENQI,SHUIPINGWOSHIBUZHI。YONGYUERCICHUCHENSHI,YIBANWEIDANSHIHUODUOSHIDANDIANCHANGBUZHI。YANGJIBANHEYINJIXIANCAIZHIWEI316LHUOQITANAIFUSHIHEJINGANG。JINSHUJIBANXITONGFUZA,XUPEITAOEWAIDEXUNHUANSHUICHULISHESHIYIJIXIANGYINGDEJIAJIANSHESHI,YUNXINGCHENGBENGAO,CAOZUOWEIHUGONGZUOLIANGDA,TONGSHISHOUQIWOSHIBUZHI、ZHANDIJIAODADEJUXIANXING,ZAISHAOJIEYANQIERCICHUCHENGAIZAOZHONGYINGYONGJIAOSHAO,JINZAIDIANCHANGDAJIZUCHAOJINGPAIFANGXIANGMUZHONGYOUSUOYINGYONG。

FEIJINSHUJIBANSHISHIDIANCHUCHENQI,YANGJITONGCHANGCAIYONGBOLIGANGHUOROUXINGZHIWU,CAIYONGLISHIDUOTONGDAODANDIANCHANGBUZHI,YANQILIUXIANGZISHANGXIANGXIAHUOZIXIAXIANGSHANG,TONGDAOWEILIUJIAOXINGFENGWOZHUANGHUOFANGXING。YANQILIUSU≤2.5m/s,TINGLIUSHIJIAN>2S,CHUCHENXIAOLV≥85%。YOUYUFEIJINSHUJIBANBENSHENNAISUANFUSHI,GUGAIXITONGWUXUSHEZHIJIAJIANSHESHI,CHONGXIXINGSHIKEFENWEILIANXUHUOJIANXIECHONGXI。

FEIJINSHUJIBANSHISHIDIANCHUCHENQIJUYOUYIXIAYOUSHI:(1)JIBANBENSHENNAISUANFUSHI,WUXUJIANXIBAOHU,WUXULIANXUDEJIANYECHONGXI;(2)XITONGJIANDAN,WUEWAIJIAJIANSHESHI,WUXUNHUANCHONGXISHUISHESHI,JIXIEYUNZHUANSHEBEIJIAOSHAO;(3)WUJIANHAO,DIANHAODI,SHUIHAODI,YUNXINGCHENGBENJIAOJINSHUJIBANJIANGDI30~40%;(4)FEIJINSHUJIBANCAIYONGLISHIBUZHI,ZAIXINJIANGAIJIANXIANGMUZHONGRONGYIYUXISHOUTAPIPEI,KEYIYUXISHOUTAZUOCHENGYITI,GAIJIANXIANGMUYEKEYIZUOCHENGTAWAILISHIBUZHI,BUZHIFANGSHILINGHUODUOYANG;(5)FEIJINSHUJIBANKEYISHIXIANJIANXIECHONGXI,YOUXIAOHUANJIEYANCONGMAO“DABAIYAN”XIANXIANG。JIYUSHANGSHUYOUSHI,FEIJINSHUJIBANSHISHIDIANCHUCHENQIYIGUANGFANYINGYONGYUSHAOJIEYANQIDEERCICHUCHENGAIZAOXIANGMUZHONG。

4非金属极板湿式电除尘器应用实例

MOUXIANGMU120m2SHAOJIEJI,YIYOUSHIHUI—SHIGAOSHIFATUOLIUSHESHI,DANXISHOUTACHUKOUYANCHENNONGDURENGRANGAODA100mg/Nm3,BENCIGAIZAONIZAIXISHOUTACHUKOUBUZHISHISHIDIANCHUCHENQI,YAOQIUQICHUKOUYANCHEN≤20mg/Nm3。GAIZAOCAIYONGDAODIANBOLIGANGFEIJINSHUJIBANSHISHIDIANCHUCHENQI,TAWAIDULISHIBUZHI,YANQILIUXIANGXIAJINSHANGCHU,ZAISHICHUDINGBUSHEZHIZHIPAIYANCONG。SHISHIDIANCHUCHENQICAIYONGDULIZHICHENGJIEGOU。SHEBEIXINGNENGCANSHURUBIAO1。

设备性能参数如表1

ANZHUANGWANCHENGHOUSHIYUNXING,ERCIDIANYA5.5WANV,ERCIDIANLIU1300mA,JUEYUANXIANGWENDUWEICHIZAI100~120℃,SHISHIDIANCHUCHENQIRUKOUYANCHEN20mg/Nm3,CHUKOUYANCHEN18.5mg/Nm3,CHUKOUYEDINONGDU15mg/Nm3,ZHIPAIYANCONG“DABAIYAN”XIANXIANGCHEDIHUANJIE,GEXIANGZHIBIAOJUNDADAOSHEJIZHI。

5二次除尘改造中常见的问题和对策

YITOUCHANYUNXINGDESHAOJIEYANQISHISHIDIANCHUCHENGAIZAOXIANGMUZHONG,DABUFENXIANGMUDOUNENGDADAOCHUKOUYANCHEN≤20mg/Nm3,DANYEYOUXIEXIANGMUZHONGBUNENGMANZUSHEJIYAOQIU,CHANGJIANWENTIZHUYAOYOU:

5.1ERCIDIANLIUDIKONGSHENGSHIDIANYUANDEDIANLIUDIANYAZHENGCHANG,YUNXINGYILIANGGEYUEHOUKAISHICHUXIANERCIDIANYAZHENGCHANG、DANERCIDIANLIUPIANDIDEXIANXIANG。

LIRUMOUXIANGMU,DIANYUANXUANXINGWEI1700mA,KONGSHENGSHIERCIDIANLIUNENGDADAO1500mA,DANTOUYUNHOUERCIDIANLIUJIANGZHI200~500mA。DIAOCHAHOUFAXIAN,SHISHIDIANCHUCHENTINGYUNSHI,YEJIUSHITUOLIUCHUKOUYANCHENNONGDUGAODA150~200mg/Nm3,ZUIGAODA350mg/Nm3,ANTUOLIUXITONGCHUCHENXIAOLV50%JISUAN,NEIMETUOLIUQIANYANCHENNONGDUGAODA400~500mg/Nm3。GAIXIANGMUCAIYONGTAOCIDUOGUANCHUCHENQI,CHUCHENXIAOLVDIXIA,DUIHOUXUDETUOLIUHESHISHIDIANCHUCHENDEYUNXINGDOUZAOCHENGLEHENDADEYINGXIANG。

ZHIDEZHUYIDESHI,SHISHIDIANCHUCHENQISHIYIZHONGMODUANDESHENDUCHULISHESHI,YAOSHIQICHUKOUYANCHEN≤20mg/Nm3,QIRUKOUYANCHENYINGKONGZHIZAI100mg/Nm3ZUOYOU,BUNENGWUXIANZHIDEJIENAGAONONGDUYANCHEN,FOUZEQIYUNXINGXIAOGUOBIRANHUISHOUDAOYINGXIANG。RENHEYIXIANGGAIZAOXIANGMUDOUBUSHIDANDUGAIZAOYIGESHEBEIJIUKEYIWANCHENGDE,YINGXITONGJISUAN,JIAQIANGGEGESHEBEIQIANHOUDELIANHELIANDONGGAIZAO。

5.2JIBANJIXIANJIHUIYANZHONG

YANGJIBANJIHUIYANZHONGYEHUIDAOZHIERCIDIANLIUPIANXIAO,CHULEKONGZHIQIANDUANYANCHENNONGDUZHIWAI,JIEJUEJIHUIWENTIHAIYINGCONGYOUHUACHONGXIZHUAQI。YINGGENJURUKOUYANCHENNONGDUJISHIDIAOZHENGCHONGXICHENGXU,DUIYUYANCHENNONGDUJIAODADEXIANGMU,YINGSHEJIZAIXIANLIANXUCHONGXISHESHI,ZUODAODANGUANDANCHONG,DUIYUJIAOZHANGDEYANGJIBAN,KEYIKAOLVDINGBUDIBULIANHECHONGXI。LIANXUCHONGXISHI,YINGCAIYONGWUHUAXIAOGUOLIANGHAODEPENZUI,QUEBAOFANGDIANJIHEJICHENJITONGSHITONGDIANQINGKUANGXIA,BUCHANSHENGYOUHAIFANGDIANXIANXIANG,SHIXIANBUDUANDIANLIANXUZAIXIANCHONGXI。

YINJIXIANDECHONGXIYEYINGYOUHUA。ZAIXIANJIEDUAN,DUIYUJINKOUYANCHENNONGDUDADEXIANGMU,YINJIXIANXUANXINGSHIYINGYOUXIANXUANZEMANGCIJIAOZHANGJIAOJIANRUI,FANGDIANXIAOGUOJIAOHAODEXIANXING。

5.3FANGFUCENGTUOLUODAOZHIYINYANGJIDAJIE

YUTUOLIUSHESHIXIANGTONG,SHISHIDIANCHUCHENQINEIBUTANGANGJIANJUNCAIYONGBOLILINPIANFANGFU。DUIYUSHEBEIDINGBUJIANSUODUANZHEIYIZHONGDIANBUWEIDEJIAQIANGJINSHEZHIYINGZHONGDIANKAOLVBOLILINPIANCHENLIDEYAOQIU。ZAISHIJIXIANGMUZHONGCHUXIANGUOYOUYUDINGBULINPIANTUOLUOZAOCHENGYINYANGJIDAJIE,SONGBUSHANGDIANDEQINGKUANG。

ZAISHEJISHI,JIANSUODUANJIAQIANGJINDEBUZHICHULEKAOLVZISHENDEGANGDU、QIANGDUHEZHENDONGDEYAOQIUWAI,HAIYINGKAOLVBOLILINPIANCHENLIDEXUQIU。CANKAO《YANGUI》,HENGXIANGYANDAOJIEMIANFANGXIANGXIANGDUINAODUWEI1/400,ZONGXIANGYANDAOZHONGXINXIANFANGXIANGXIANGDUINAODUWEI1/200,YIWUFAMANZUFANGFUSHEJIYAOQIU,YINCIZAIJINXINGFANGFUYANDAOHUOQIAOTIDESHEJISHIBIXUANZHAOHENGXIANGJIAGULEIDEXIANGDUINAODUWEI1/500--1/700,ZONGXIANGXIANGDUINAODUWEI1/500--1/700DEYAOQIUDUI《YANGUI》GONGSHIZHONGDECHANGSHUJINXINGXIUZHENG。

5.4YINYANGJIJIANJUDEBAOZHENG

YANGJIMOKUAIYUYINJIXIANKUANGJIAZHIJIANDEANZHUANGWEIZHIWUCHAYIJIANZHUANGZHILIANGQUEXIANHUIDAOZHIDIANCHANGYUNXINGDIANYA、DIANCHANGQIANGDU、YANGJIBANDIANLIUMIDUFENBUJUNYUNXING,CONGERDAOZHIJICHUANDIANYAJIANGDIBINGDUICHUCHENXIAOLVCHANSHENGBULIYINGXIANG。YINCIBIXUBAOZHENGYINYANGJIXITONGDEANZHUANGZHILIANG,YIQUEBAODIANCHUCHENQICHUCHENXIAOLV,SHIYANCHENPAIFANGNONGDUFUHESHEJIYAOQIU。

5.5QILIUJUNBUSHEJI

LIUCHANGSHUZHIMONIDUIYUSHISHIDIANCHUCHENQISHEJILAISHUOSHIHENGUANJIANDEYIXIANGGONGZUO,DUIYUQUEDINGDEBUZHIFANGSHI,YINGZHISHAOMONI40%、70%HE100%SANZHONGFUHEXIADEQILIUFENBUZHUANGKUANG,TONGGUODIAOZHENGDAOLIUBAN、JUNBUBANDEFANGXIANG、JIAODUHEKAIKONGLVDENG,LAIHUODEZUIJIADEQILIUFENBU。

SHAOJIEYANQILIANGDEFANFUBIANHUADUIYUSHISHIDIANCHUCHENQILAISHUOSHIYIZHONGBUWENDINGDEYINSU,YOUQISHIDUIYUTAWAIDULISHISHISHIDIANCHUCHENQI。SHEBEINEIBUQILIUJUNBUXISHUYINGZAIGEZHONGCHANGJIANGONGKUANGXIAJUNNENGMANZU≤0.2。ZAIQIDONGQIANKONGZAIQILIUJUNBUSHIYANSHIYEYINGGENJUSHEDINGDEFUHEDIAOZHENGYINFENGJIFENGLIANGLAIKAOCHASHEBEINEIBUZHUYAODUANMIANSHANGDELIUSUFENBU。

6结语

FEIJINSHUJIBANSHISHIDIANCHUCHENQIYOUYUQIZISHENDEYOUSHIYIGUANGFANYINGYONGYUSHAOJIEYANQIERCICHUCHENGAIZAOXIANGMUZHONG,QICHUKOUYANCHENNENGMANZUGAIXINGYEMUQIANZUIYANDE20mg/Nm3DEYAOQIU,TONGSHIHAINENGYOUXIAOHUANJIEYANCONG“DABAIYAN”XIANXIANG,JIANXIAOSHIJUEWURAN。ZAISHEJISHIGONGSHI,YINGZHENDUISHAOJIEYANQIDETEXINGZUOSHIDANGDEDIAOZHENGHEGAIJIN,ZHONGDIANCONGJIAQIANGLIANHELIANDONGGAIZAO、YOUHUAQILIUFENBU、YOUHUACHONGXIPEIZHIYIJIQIANGDIAOSHIGONGANZHUANGZHILIANGFANGMIANZHESHOU,CUJINGAIZAOXIANGMUSHUNLIYUANMANDEDADAOSHEJIYAOQIU。

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