河北威美环保致力于阳极管、电除雾器及湿式静电除尘器的研发生产,详情请致电:18332815001湿电 | 烟气消白 | 湿式静电除尘器 | 湿电除尘设备
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湿电除尘技术   众鑫棋牌 > 湿电除尘技术

电除雾技术:静电除雾器在铜冶炼烟气制酸中的应用

[2018-11-28] 点击:

湿电咨询服务: 陶经理18332815001 张经理18633235200

ZHEISHIYIPIANGUANYU《HUANYANGYIXIJIZHISHUZHIZAITONGYELIANYANQIZHISUANZHONGDEFANGFUSHIYINGYONG》FANGMIANDELUNWEN,DANZHEILIMIANQUEQUANMIANDEFENXILEJINGDIANCHUWUQIZAITONGYELIANYANQIZHISUANZHONGDEYINGYONG,KEYIJIXIANGGUANDECHANGJIAQIDAOCANKAOZUOYONG。

ZHAIYAO:HUANYANGYIXIJIZHISHUZHIJUYOUYOULIANGDENAIFUSHIXINGNENG,GUANGFANYINGYONGYUTONGYELIANGONGYEZHONG。BENWENJIESHAOLETONGYELIANGONGYEZHONGYANQIZHISUANDEGONGYI,BINGZHENDUIYANQIZHISUANGONGYILIUCHENGZHONGDEFUSHIJIEZHIHUANJING,FENXILEHUANYANGYIXIJIZHISHUZHIDETEDIANHEFANGFUSHIGONGCHENGYINGYONGANLI,ZHIZAIWEITONGYELIANGONGYEZHONGDEFUSHIYUFANGHUTIGONGLEQIESHIKEXINGDEFANGFUSHIJISHUFANGANCANKAO。

    GUANJIANCI:HUANYANGYIXIJIZHISHUZHI;TONGYELIAN;FANGFUSHI;ZHISUAN;YINGYONG

    ZHONGTUFENLEIHAO:TG172;TE98

    WENXIANBIAOZHIMA:B

    WENZHANGBIANHAO:1005-748X(2013)05-04490-03

    ZHONGGUOSHISHIJIEZUIDADEJINGLIANTONGSHENGCHANGUOHEXIAOFEIGUO。SUIZHEWOGUOTONGYELIANJISHUDETIGAOYIJIDUIHUANJINGBAOHUDERIYIZHONGSHI,TONGYELIANGONGYEZHONGDEFANGFUSHIYAOQIUYEYUELAIYUEYANGE。GENJUTONGYELIANDEGONGYILIUCHENGHETEDIAN,MUQIANZHUYAODEFUSHIXIANXIANGFASHENGZAIYANQIZHISUAN、DIANJIEJINGLIAN、SHUICHULIDENGGONGDUAN,GENJUFUSHIHUANJINGDEBUTONG,ZHUYAOXUANYONGBUXIUGANG、QIAN、NAISUANZHUAN/HUAGANGYAN、SHUIBOLI、SHUZHIDENGCAILIAO,QIZHONGHUANYANGYIXIJIZHISHUZHIZUOWEIYIZHONGJINJISHINIANXINXINGDEYOULIANGNAIFUSHICAILIAO,ZAITONGYEJINFANGFUSHIGONGYEZHONGFAHUICHUZHONGYAODEZUOYONG[1-3]。TEBIESHIZAIYANQIZHISUANZHONGDEJINGHUA、JINGDIANCHUWU、WEIQITUOLIUDENGGONGDUAN。YANQIGUANDAOHESUANGUANDAODENGSHEBEIDALIANGSHIYONGHUANYANGYIXIJIZHISHUZHIBOLIGANGZHIZUO。BENWENZHONGDIANJIESHAOHUANYANGYIXIJIZHISHUZHIZAITONGYELIANGONGYEZHONGYANQIZHISUANGONGDUANDEFANGFUSHIYINGYONG。

    1·环氧乙烯基酯树脂

    HUANYANGYIXIJIZHISHUZHISHIQIAOPAIHUAXUEGONGSIKAIFADEYIZHONGYOULIANGDENAIFUSHINAIGAOWENSHUZHICAILIAOYU20SHIJI70NIANDAIMOYOUHUADONGLIGONGDAXUEZUIZAOZAIGUONEIYANJIUCHENGGONG,BINGHENKUAITUICHUSHANGPINMINGWEIMFE-2DEHUANYANGYIXIJIZHISHUZHI[4-5]。HUANYANGYIXIJIZHISHUZHIZHULIANYOUBUBAOHESUOSUANYUHUANYANGSHUZHIJINXINGKAIHUANZHIHUAFANYINGDEDAO,GUHUAGUOCHENGTONGGUOZHULIANLIANGDUANDESHUANGJIANYUBENYIXIJIAOLIANGONGJU,XINGCHENGWENDINGDELITIWANGZHUANGJIEGOU。FENZIJIEGOUHEGUHUAGONGYISHIQIJUYOUYIXIAYOUDIAN:

    (1)FENZIZHULIANWEIHUANYANGGUJIA,JUYOUHUANYANGSHUZHIGUYOUDELIANGHAOLIXUEXINGNENGHEBOXIANJINRUNXINGDENGYOUDIAN;

    (2)GUHUAGUOCHENGSHIQIJUYOUBUBAOHESHUZHIDEZHANDUTEDIANHEYOULIANGDEGUHUAGONGYIKEDIAOJIEXING;

    (3)XIANGLINJIAOLIANSHUANGJIANDUIZHIJIDEKONGJIANPINGBIZUOYONGSHIDESHUZHIYONGYOUHENGAODENAISHUIJIEWENDINGXING,JUYOUHENHAODENAISUAN、NAIJIANFUSHIDENGXINGNENG;

    (4)WENDINGDESANWEILITIWANGLUOJIEGOUSHISHUZHIYOUHENGAODENAIWENXINGNENG。

    HUANYANGYIXIJIZHISHUZHIJUYOULIANGHAODECHENGXINGXING、LIXUEXINGNENGHENAIHUAXUEPINFUSHIXING,ZAI100℃XIANENGNAIDABUFENSUAN、JIANJIYANRONGYEDEQINSHI。GENJUZHULIANYINRUJITUANBUTONG,YOUSHUANGFENAXING、FENQUANXINGYIJIGEZHONGGAIXINGDEHUANYANGYIXIJIZHISHUZHI,YIDADAOBUTONGDEXINGNENGYAOQIUHECHENGBENKONGZHI。RU:①SHUANGFENAXINGHUANYANGYIXIJIZHISHUZHIZONGHEXINGNENGYOULIANG,SHIHEZHIZUONAISHINEICHEN、GUANTI、YUNDONGQICAI、FENGDIANSHEBEI、BOLIGANGCHUANTIDENGGEZHONGNAISHIBOLIGANGZHIPIN,BOLILINPIANTULIAOHUOJIAONI,JIAOYIJITIDENG;②FENQUANXINGHUANYANGYIXIJIZHISHUZHIJIAOZHUTIKENAI150℃YISHANGGAOWEN,GUANGFANYONGYUDIANCHANG、YELIANCHANGDENGYANQITUOLIUDEGAOWENGAOSHIHUANJING;③JINGXIUHUAZURANGAIXINGDEHUANYANGYIXIJIZHISHUZHIYANGZHISHUCHAOGUO30,KEYONGYUJIAOTONG、JIANZHUDENGXINGYEDESHEBEIZUJIAN、GONGJIANDENG;④YIQINGSUANZHIGAIXINGHUANYANGYIXIJIZHISHUZHIJUYOUGAORENXING、DISHOUSUO,LIANGHAODEBIAOMIANQIGANXINGHEGAOCHUBIANXINGDENGTEDIAN,DALIANGYONGYUMOJUZHIZUOHEZHENGTIFUHECAILIAOQIAOLIANGDENGLINGYU;⑤DANXINGTIGAIXINGHUANYANGYIXIJIZHISHUZHIDUANLIEYANSHENLVCHAOGUO10%,GAOROURENXING,ZHANJIEXINGHAO,JIQISHIHEZHIZUOGAOSUTIELUDANXINGDIANPIAN,HUOSHIZUOWEIGOUFENGCAILIAO、MIFENGCAILIAODENG。

    HUANYANGYIXIJIZHISHUZHIJIAGONGGONGYISHIYONGXINGGUANG,KEZHIJIEZHIZUOGEZHONGGAOTOUGUANGSHUZHIJIAOZHUTI,HUOYUBOXIAN/ZHAN、DILUNBUDENGZENGQIANGCAILIAOSHOUHU、MOYA、LAJI、CHANRAODENGZHIZUOGEZHONGBOLIGANGZHIPINHUOGAOXINGNENGFUHECAILIAO[6-7];YEKEYIYUGEZHONGTIANJIACAILIAORUSHIMO、TAIBAIFEN、Sb2O3DENGZHICHENGDAODIANSHUZHI、ZURANSHUZHIDENGTEZHONGCAILIAOHUOTULIAO、JIAOYIDENG,HUOZHEZHIJIEYUSHIYINGSHA/FEN、BOLILINPIANDENGHUNHEJIAOBANCHENGSHAJIANG、JIAONIDENGQIZHUANHUOPUQIHUAGANGYANDENG。HUANYANGYIXIJIZHISHUZHIZUOWEIYIZHONGXINGNENGYOULIANG、JIAGEHELI,YINGYONGFANWEIGUANGDEYOUXIUNAIFUSHISHUZHI,YIJIANJIANQUDAICHANGGUISHUZHIHEJINSHUCAILIAO,CHENGWEIFANGFUSHISHEJIDEZHULIXUANCAI。

    2 烟气制酸各工段防腐蚀应用

    DIQIUSHANGDAYUE80%DETONGKUANGWUZUCHENGSHICu-Fe-SKUANG,TONGCHANGCAIYONGHUOFAYEJINFANGSHITIQUTONG[8]。SHIFANGDELIUHUAWUDUOYISO2DEXINGSHICUNZAI,RUAOTUOKUNPUSHANSURONGLIANLUPAICHUDEYANQIZHONGSO2TIJIBAIFENBIYUEZHAN25%~50%;PISHIWOSHI(Peirce-Smith)ZHUANLUYANQIZHONGSO2YUEZHAN8%~15%。CIWAI,YANQIZHONGHAIHANYOUSHAOLIANGDESO3,Cl2,F2DENGQITIHEHUICHEN。GUOQU,SO2YANQIYIBANDOUZHIJIEPAIFANGDAODAQIZHONG,RUJINSUIZHEGUOJIADUIHUANJINGBAOHUDEZHONGSHI,ZHEIZHONGZUOFAYIBEIYANGEJINZHI,HUOFAYETONGBIXUBUHUOLIUHUAWU,HUISHOUDELIUHUAWUYIBANDOUZHICHENGLIUSUAN。TU1SHILIYONGRONGLIANWEIQIZHONGSO2ZHISUANDELIUCHENG。QIZHONGJINGHUA、JINGDIANCHUWU、WEIQITUOLIUDENGGONGDUANDALIANGSHIYONGHUANYANGYIXIJIZHISHUZHIZHIZUOBOLIGANGSHEBEI。

 

图1 熔炼炉或精炼炉烟气生产硫酸的工艺流程

TU1 RONGLIANLUHUOJINGLIANLUYANQISHENGCHANLIUSUANDEGONGYILIUCHENG

    2.1 净化工段

    YELIANCHANSHENGDEYANQIJINGJINGDIANCHUCHENHOU,ZHUYAOWEISO2HESHAOLIANGDECl2,F2,SO3DENGQITIHEHUICHEN,WENDUZAI300℃ZUOYOU,XUSHOUXIANJINRUXIDITA(LIULIANGTAHUOWENSHIGUAN)NEIBEISHUILENGQUEZHI55~60℃。

    早期洗涤塔的设计多采用合金钢或铅结构,但成本高、质量大,不易制作,耐腐蚀效果也不理想,使用寿命短。现在的洗涤塔、冷却塔以及配套的斜板沉降槽、上清液贮槽、事故高位槽等已全部采用玻璃钢制作,塔主体为正圆形,多采用中碱玻璃纤维纱浸环氧乙烯基酯树脂缠绕制备,有时树脂中还会添加玻璃微珠或其它填料等来增加制品的刚性或其它特种性能。目前玻璃钢厂家采用缠绕机来生产圆形塔或罐等玻璃钢制品,生产效率高,产品质量稳定,尺寸精确。相比同等质量要求的金属制品,可减少40%~60%的质量,而且对于较大型的设备,可通过切割和现场粘接组装来简化运输要求,具有更好的技术和经济效果。如图2所示为某200kt·a-1铜项目的一级洗涤塔、冷却塔和二级洗涤塔。

图2 某200kt·a-1铜项目的一级洗涤塔冷却塔和二级洗涤塔

TU2 MOU200kt·a-1TONGXIANGMUDEYIJIXIDITALENGQUETAHEERJIXIDITA

    2.2 静电除雾

    经冷却和洗涤后的气体需要通过静电除雾器,以除去经过水冷后仍然存在于气体中的雾状液滴。气体进入除雾器内平行的数百个阳极管内后,气体中的酸雾微粒随即吸附电荷,在电场力的作用下作定向运动,抵达到捕集酸雾的阳极板上。之后,带电粒子在极板上释放电子,酸雾被集聚,在重力作用下流到除酸雾器的储酸槽中,达到了净化酸雾的目的。

    QITIJINRUCHUWUQISHIDEZHUYAOZUCHENGYUEWEI8%~12%SO2,8%~10%H2S,YIJI5%~10%DESUANWU,WENDURENGBAOCHIZAI40℃ZUOYOU。YOUYUDIANCHUWUQIZHANGQICHUZAISUANXINGQIFENZHONG,SUOYIBIXUSHIYONGFANGFUSHIXINGNENGHAODECAILIAOZHIZAO。YINJIXIANJUNCAIYONGJINSHUZHIPIN,YANGJIBANCHANGYONGDECAIZHIYOUQIANZHI、YINGJULVYIXI(PVC)HEDAODIANBOLIGANGSANZHONGLEIXING。DANPVCZHIPINYILAOHUAKAILIE,SHIYONGSHOUMINGDUAN,QIANZHIPINZECUNZAIZHONGLIANGDA、YIBIANXING,WEIXIUKUNNAN,WURANHUANJINGHECHENGBENGAODENGQUEDIAN,ERYOUHUANYANGYIXIJIZHISHUZHIHESHIMOZHICHENGDEDAODIANBOLIGANGZHIPINZEWANQUANKEFULESHANGSHUQUEDIAN。RUGUIXIYELIANCHANGDE1307-5#FANGGUANXINGLISHIDIANCHUWUQI[9],CAIYONGMFE-3HUANYANGYIXIJIZHISHUZHIZHIZUODAODIANBOLIGANG,DANGDIANYASHENGZHI72kVSHI,DIANLIUJIUNENGDADAOEDINGDIANLIU400mA,CHUWUXIAOLV99%YISHANG,YUNXING16aBOLIGANGGOUJIANRENGBAOCHIWAIGUANWANHAO。RUTU3SUOSHIWEIMOU200kt·a-1TONGXIANGMUDIANCHUWUQINEIBUJIEGOU,YANGJIBANYONGMFE-7ZURANXINGHUANYANGYIXIJIZHISHUZHIZHIZUODAODIANBOLIGANG,YANGZHISHU(OIZHI)DAYU30。

图3 某200kt·a-1铜项目电除雾器内部结构

TU3 MOU200kt·a-1TONGXIANGMUDIANCHUWUQINEIBUJIEGOU

    2.3 尾气脱硫

    JINGDIANCHUWUHOUDEYANQIZAIGANZAOTANEIYONG93%H2SO4+7%H2O(YOUSHIYONG96%~98%DENONGLIUSUAN)CHUSHUI,JIAREZHI410℃HOUYUO2ZAIZHUANHUATANEICUIHUAYANGHUAWEISO3,JIANGWENZHI200℃HOUSO3ZAIXISHOUTANEIBEI98%H2SO4+2%H2OXISHOUSHENGCHANLIUSUAN,ZHUANHUAGONGDUANZHUYAOCAIYONGSHUIBOLIQINAISUANZHUANZUOFANGHUCHULI。CANYUWEIQIGENJUHANLIULIANGXUANZEPAIRUDAQIHUOJINYIBUTUOLIU,YANQITUOLIUGONGYIZHUYAOYOU:SHIHUISHI-SHIGAOSHIFATUOLIU、HAISHUITUOLIUDENG,QIZHONGSHIHUISHI-SHIGAOSHIFATUOLIUFAYINGYONGGUANGFAN,HUOXINGJIAOTUOLIUJISHUZAIHUANJINGBAOHUHEZIYUANZHONGFULIYONGFANGMIANJUYOUDAIBIAOXING。

    (1)石灰石-石膏法脱硫

    SHIHUISHI-SHIGAOFATUOLIUJISHUCHENGSHUKEKAO、SHIYONGFANWEIGUANG,TUOLIUXIAOLVGAO,SHIMUQIANLIANTONGGONGYEZHONGYINGYONGZUIGUANGFANDETUOLIUFANGFA。QIZHUYAOGONGYILIUCHENGSHI:YANQIJINGHUANREQIJIANGWENHOU,JINRUXISHOUTAYUSHIHUISHIRUYECHONGFENJIECHU,YANQIZHONGDESO2ZAIO2HEH2OCANYUXIAFANYINGSHENGCHENGCaSO4·2H2O,SHENGYUQITIJINGCHUWUSHENGWENHOUPAIRUYANCONG。

    XISHOUTAZHUTIWEITANGANGJIEGOU,NEICHENYIDINGHOUDUDEHUANYANGYIXIJIZHISHUZHIBOLILINPIANJIAONI,DUIFANGFUSHIXIANGDANGYOULI。MUQIANHUANYANGYIXIJIZHISHUZHIBOLILINPIANJIAONIYIJIANJIANQUDAIQITACAILIAO,DALIANGYINGYONGYUTUOLIUFANGFUSHIZHONG。

    (2)HUOXINGJIAOYANQITUOLIUJISHUGAIJISHUSHIYIZHONGKEZIYUANHUADEGANFAYANQITUOLIUJISHU,YIMEIJIHUOXINGJIAOWEIXIFUJI,XIFUTUOCHUYANQIZHONGDESO2。XIFUSO2HOUDEHUOXINGJIAOKEJIARETUOFU,HUODEGAONONGDUSO2HUNHEQITI。HUOXINGJIAOYANQITUOLIUGONGYIYUSHIHUISHI-SHIGAOSHIFAYANQITUOLIUGONGYIXIANGBIYOUYIXIAYOUDIAN:①ZAITUOLIUDETONGSHIHAINENGTUOXIAOJITUOCHUYOUHAIZHONGJINSHU;②YANQITUOLIUFANYINGBUXUYAODUICHUKOUYANQIJIARE;③TUOLIUGUOCHENGBUYONGSHUI,SHIYONGYUSHUIZIYUANQUEFADIQU;④TUOLIUJIYIMEITANWEIYUANLIAOSHENGCHAN,KEZAISHENGXUNHUANLIYONG;⑤SUOCHANSHENGDEFEIWUJISHAO,BUHUIDUIHUANJINGZAOCHENGERCIWURAN。

    SUOYIHUOXINGJIAOTUOLIUJISHUFUHECHANYEFAZHANFANGXIANG。

    YANQISHOUXIANJINRUZENGSHITA,ZENGSHITAWEIBOLIGANGGUANJIEGOU,NEIZHUANGBAOERHUANTIANLIAO,YANQIZAITIANLIAOZHONGJINGGUOSHIBEIGAOWENSHUIZHENGQIZENGSHIJIAREHOUJINRUXIFUTA,XIFUTAWEITANGANGJIEGOU,XIABUJINQISHINEICHENFENQUANXINGNAIGAOWENHUANYANGYIXIJIZHISHUZHIBOLILINPIANJIAONI。ZHONGBUWEIHUOXINGJIAOCENG,HUOXINGJIAOSHIYIMEIWEIYUANLIAO,CHENGXING、JIAOHUA、HUOHUASHENGCHANDEDUOKONGZHUANGHEISEKELI,YANQIZAIHUOXINGJIAOCENGWANCHENGSO2,HF,HClHEERWUYINGDENGDAFENZIYANGHUAWUYIJIGONG、SHENDENGZHONGJINSHUDEXIFU,RANHOUCONGCEYANDAOPAIXIANGYANCONG。BAOHEHUOXINGJIAOZESHUSONGZHIJIEXITAJIARETUOFU,HUODETIJINONGDUDAYU20%DESO2HUNHEQITI,SONGQUZHISUAN。

    2.4 烟囱排气和管道防腐蚀

    JINGHUAHOUDEYANQIRENGHUIYOUCANCUNDELIUHUAWU,DANGYANQIZHONGHANYOUSHUIFEN,HUOKONGQISHIDUJIAODASHI,LIUHUAWURENGHUIJIEHESHUICHENGWEISUANYE。YANQIWENDUZAI40~80℃JIAN,SUANYEDUIJIEGOUCAILIAODEFUSHIXINGHENQIANG,YANCONGNEICHENHUANYANGYIXIJIZHISHUZHIBOLILINPIANJIAONIJINXINGZUIHOUDEFANGFUSHIFANGHU。

    ZHENGGEZHISUANGUOCHENGZHONG,YANQIZAIGUANDAOZHONGDABUFENSHIYIDIYU80℃ZHUANGTAILIUDONG,GUANDAOYEJUNWEIBOLIGANGZHIZUO。BUFENSUANYEGUANDAOCAIYONGJULVYIXIWAICHENBOLIGANGZENGQIANGDEFUHEGUANDAO。

    3 结束语

    GUOCHANYOUXIUHUANYANGYIXIJIZHISHUZHIDEXINGNENGHEZHILIANGYIJINGDADAOSHENZHICHAOYUELEGUOWAITONGLEICHANPIN。YANQIZHISUANZHONGMUQIANYIDALIANGCAIYONGHUANYANGYIXIJIZHISHUZHIZUOWEIFANGFUSHIXUANCAISUIZHECHANPINDESHENRUYANFAHEGAIJIN,SHENGCHANGONGYIDEBUDUANGAIJIN,GENGDUODEHUANYANGYIXIJIZHISHUZHICHANPINLUXUMIANSHI,HUANYANGYIXIJIZHIZAITONGYELIANXINGYEJIANGYOUGENGJIAGUANGKUODEYINGYONGSHICHANG。

    CANKAOWENXIAN:

    [1]ZHOURUNPEI,HOURUIGANG,WANGXIAODONG,DENG.MFEYIXIJIZHISHUZHIJIQIZAIFANGFUSHILINGYUDEYINGYONGYANJIU(I)[J].BOLIGANG/FUHECAILIAO,2002,26(7):35-42.

    [2]ZHOURUNPEI,HOURUIGANG,WANGXIAODONG,DENG.MFEYIXIJIZHISHUZHIJIQIZAIFANGFUSHILINGYUDEYINGYONGYANJIU(II)[J].BOLIGANG/FUHECAILIAO,2002,26(5):41-43.

    [3]ZHOURUNPEI,HOURUIGANG,WANGXIAODONG,DENG.MFEYIXIJIZHISHUZHIJIQIZAIFANGFUSHILINGYUDEYINGYONGYANJIU(III)[J].BOLIGANG/FUHECAILIAO,2003,27(1):51-53.

    [4]HEYANG,LIANGGUOZHENG,HUANGYAN,DENG.HUANYANGYIXIJIZHISHUZHIDEYANJIUJINZHAN[J].JUEYUANCAILIAO,2003,18(6):41-46.

    [5]ZHOURUNPEI,HOURUIGANG,WANGXIAODONG,DENG.MFEYIXIJIZHISHUZHIDEXINGNENG[J].HUAXUEGONGCHENGSHI,2004,35(4):16-19.

    [6]ZHANGHONGJUN,ZHOUXIAODONG,DAIGANCE,DENG.BOLIXIANWEIZENGQIANGYIXIJIZHISHUZHIFUHECAILIAODEZENGREN[J].GAOFENZICAILIAOKEXUEYUGONGCHENG,2005,21(5):21-25.

    [7]PANYUQIN.BOLIGANGFUHECAILIAOJITISHUZHIDEFAZHANXIANZHUANG[J].XIANWEIFUHECAILIAO,2006,21(12):55-59.

    [8]Davenport W G,King M,Schlesinger M.
Extractivemetallurgy ofcopper[M].Elsevier
(Singapore)PteLtd,2006.

    [9]LIUHUIJU.TONGDIANJIECHEJIANDEFANGFUSHI[J].YOUSEJINSHU(YELIANBUFEN),2009,21(5):13-16.

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