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网站国际ag馆 >> 被列入《国家危险废物名录》,电解铝二次铝灰利用技术分析!

被列入《国家危险废物名录》,电解铝二次铝灰利用技术分析!

日期:2018/24/12

  电解铝二次铝灰是一种危险废物,含有大量氟化物、氰化物、碳化铝、氮化铝等有毒有害物质,对其处理一直是电解铝行业的研究的热点。


  DIANJIELVERCILVHUISHIYIZHONGWEIXIANFEIWU,HANYOUDALIANGFUHUAWU、QINGHUAWU、TANHUALV、DANHUALVDENGYOUDUYOUHAIWUZHI,DUIQICHULIYIZHISHIDIANJIELVXINGYEDEYANJIUDEREDIAN。


  CHUANTONGDETIANMAIHEDUICUNFANGSHIYIJINGBEIMINGLINGJINZHI,ZHENDUIERCILVHUIDECHULI,YENEIKAIFACHULEDUOXIANGGONGYIJISHU,BENWENZHENDUIERCILVHUIXIANYOUDEGONGYIJISHUHECHUZHIXIANGMUJINXINGLESHENRUFENXI,BINGFENXILEERCILVHUICHULIJISHUDEFAZHANQUSHI。


  LVHUISHIDIANJIELVHUOERCILVZAIRONGZHULUZHONGFUYULVYEBIAOMIANDEHUIZHA,ZHUYAOYOULVYEZHONGDEBURONGJIAZA、CHENGQINGJI、LVYEYANGHUASHENGCHENGDEYANGHUALVDENGGOUCHENG,JUYOUBAOWENHEFANGZHILVYEYANGHUADEZUOYONG。


  RONGZHUGUOCHENGHUIDINGQIBACHUHUIZHABEICHENGWEIYICILVHUI,YICILVHUIZHONGJINSHULVHANLIANGZAI70——80%,TONGCHANGCAIYONGCHAOHUIHUOYAZHADENGFANGFAHUISHOULVHUIZHONGDEJINSHULV,HUIZHALENGQUEHOUJINYIBUXIMOSHAIFENCHULVKELI,DEDAODEXIHUIJIWEIERCILVHUI。


  二次铝灰会对环境产生严重的危害


  BUTONGYUANLIAORONGZHUGUOCHENGCHANSHENGDEERCILVHUIHUAXUECHENGFENBUTONG,DIANJIELVRONGZHUGUOCHENGCHANSHENGDEERCILVHUIZHONGFUHUAWU、DANHUALVHANLIANGJIAOGAO,ZAISHENGLVRONGZHUGUOCHENGCHANSHENGDEERCILVHUIZHONGYANGHUALVHEYANFENHANLIANGJIAOGAO。


  ERCILVHUIZHUYAOCHENGFENWEIYANGHUALV、AlN、Al4C3、SHAOLIANGDEJINSHULVHEYIDINGLIANGDEFUHUAWU、QINGHUAWU、NaCl、KClHESiO2,YOUDUYOUHAIWUZHIWEIAlN、Al4C3、FUHUAWUHEQINGHUAWUDENG。


  AlN、Al4C3YUSHUICHANSHENGNH3HECH4DENG,SANFAECHOUQIWEI,FUHUAWUHEQINGHUAWUYUSHUIRONGCHUHUIWURANZIRANSHUITI,YINCIRUBUJIACHULIZHIJIEJINXINGTIANMAIJIANGHUIDUIHUANJINGCHANSHENGYANZHONGDEWEIHAI。MUQIANERCILVHUIYIBEILIERU《GUOJIAWEIXIANFEIWUMINGLU》,FEIWULEIBIEHW48YOUSEJINSHUYELIAN,FEIWUDAIMA321-024-48。


  二次铝灰现有工艺存在消纳量不足的缺点


  ERCILVHUIDANGQIANCHULIGONGYIZHUYAOFENWEIWUHAIHUAHEZIYUANHUALIANGLEI,WUHAIHUAZHIERCILVHUIJINGGUOCHULIQUCHUDANHUAWU、FUHUAWU、YANFENDENGZAZHIHOUDEDAOWUHAIHUALVHUIJINXINGANQUANTIANMAI,WUHAIHUAGONGYIZHUYAOWEISUANJIN、JIANJIN、XIDIDENGFANGSHI。


  ZIYUANHUASHIZHITUOCHUYOUDUYOUHAIWUZHIHOUERCILVHUIJINGGUOGAOWENHUOLENGJIAGONGZHICHENGBUTONGDEGUOJIagGUANRUGANGZHUABAOHUHUAN、ZONGGANGYUMOLIAO、JINGLIANJIHEJINGSHUIJIDENG,HUOSHIFANHUIDIANJIECAOZUOWEIDIANJIELVYUANLIAO。


  ZAIHUANBAODEYALIXIA,MUQIANGUONEIDUOJIADIANJIELVCHANGFENFENSHANGMAERCILVHUICHULIXIANGMU,LIRUQINGHAIMOUDIANJIELVQIYEDEDIANJIELVFEITANZHAHEERCILVHUICHUZHIXIANYU2018NIAN4YUETONGGUOQINGHAISHENGHUANBAOTINGDEYANSHOUBINGTOURUSHIYONG。


  XIANGMUZONGTOUZI1.3YIYUAN,XIANGMUGUIMOWEINIANCHUZHIFEILVHUI1.9WANDUN、FEITANZHA1.4WANDUN,NIANCHANCHUDIANJIEZHI1WANDUN、ZHONGRONGLVDING0.5WANDUN、GANGZHUABAOHUHUAN296WANFU、YEJINJIAO2.8WANDUN、RENZAOSHIMOSUI0.42WANDUN。


  铝灰生产阳极保护环工艺过程为:


  1.LVHUIDECHUXUANHEPOSUI,FEILVHUIJIRUTIAOXINGSHAI,SHAICHUDAKUAIDELVKUAI,SHAIXIAWUJIRUESHIPOSUIJIPOSUI,POSUIHOUWULIAOJINRUJILIAODOU;


  2.QIUMOHESHAIFEN,POSUIWULIAOJIRUQIUMOJI,QIUMOHOUWULIAOJINGJILIAOJIJIRUZHENDONGSHAI,SHAIFENCHUBUNENGMOSUIDELVPIANHEERCILVHUI;


  3.LVKUAIZHONGRONG,JIANGSHAIFENDEJINSHULVKUAIJIRU1tDEZHONGPINLUZHONGRONGLIANBINGZHUCHENGLVDING;


  4.YAZHIBAOHUHUAN,ERCILVHUIYUTANSUTIANJIAJIHESHUIJINXINGCHONGFENJIAOBANHUNHE,HUNHEHAODEWULIAOJINRUZHIHUANJIZHIJIEYAZHIYANGJIBAOHUHUAN,CHENGXINGBAOHUHUANSONGRUDIANRESUIDAOYAOJINXINGHONGGAN;


  5.ANQIHUISHOU,YOUYUERCILVHUIZHONGHANYOUDANHUALV,HONGGANGUOCHENGHUICHANSHENGANQI,SUIDAOYAOCHANSHENGDEFEIQIJINGXIANTAXISHOU,XIANSHUIBENGSONGRUZHENGANTA,SHIXIANSHUIBUFENQIHUALENGNINGDEDAODAYU20%DECHENGPINANSHUICHUSHOU。


  返回电解槽炼铝是二次铝灰综合利用的发展趋势


  YOUYUERCILVHUICHANLIANGSHIFENJUDA,MUQIANQUANGUOJINDIANJIELVQIYENIANCHANERCILVHUIJIUDADAO200WANDUN,WULUNSHILIYONGLVHUISHENGCHANGANGZHUABAOHUHUANHAISHIZONGGANGYUMOLIAODENGGUOJIagGUAN,DOUMIANLINGUOJIagGUANXIAONAWENTI,YINCIRUHEJIEJUERUHEDALIANGXIAONAERCILVHUICHENGWEIQIYEGUANZHUDEZHONGDIAN。


  ZHONGNANDAXUEDEYANJIUTUANDUIKAIFALEYIZHONGDIWENJIANRONGJISHUCHULIERCILVHUI,GUOJIagGUANZUOWEIDIANJIELVHESHUIBOLIDEYUANLIAO。


  JISHUYUANLISHIJIANGLVHUIJIARUTANSUANNA、QINGYANGHUANAZUOWEIRONGLIANJIEZHI,ZAIDIYU900℃DEWENDUXIARONGLIAN,RONGLIANWANCHENGHOUJINXINGRESHUIJINCHU,FENBUCHENDIANWANCHENGGEZUFENDEFENLI;LVHUIZHONGTANHUALV、DANHUALVHEQINGHUAWUFENJIE,FUHUAWU、LVHUAWUYUJIANXINGWUZHIFANYINGSHENGCHENGFUHUANAHELVHUANA,YANGHUALVHEYANGHUAGUISHENGCHENGLVSUANNAHEGUISUANNA,SHUIJINHOUDIAOJIEPHZHI,FENBUCHENDIANCHUQINGYANGHUALVHESHUIBOLI,SHENGYURONGYEDUOXIAOZHENGFACHUGONGYEYONGYAN,QINGYANGHUALVJINGDUANSHAOHOUFANHUIDIANJIECAOHUIYONG。


  ZHENGGEGUOCHENGDIWENJIENENG、QINGJIEGAOXIAO,ZHENZHENGZUODAOLEZIYUANDEZONGHELIYONG,CHENGWEIERCILVHUILIYONGDEJISHUDEFAZHANQUSHI。


  结语


  SUIZHEHUANBAOYALIDERIYIJIADA,DIANJIELVLVHUICHENGWEIDIANJIELVCHANGJIDAIJIEJUEDEWENTI,SHICHANGKONGJIANYEZAIZHUBUKUODA。ERCILVHUIDEYINGYONGMUQIANKAIFALEDUOZHONGJISHURUSHENGCHANGANGZHUABAOHUHUAN、MOLIAO、NAICAIDENGGUOJIagGUAN,DANDOUMIANLINGUOJIagGUANXIAONADEWENTI,YIERCILVHUIFANHUIDIANJIECAOLIANLVCHENGWEIQILIYONGDEFAZHANQUSHI。


来源:金智创新
编辑:铝道网