青海快3

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降低选矿生产成本的黑钨矿跳汰粗选丢废技术

责任编辑:金工机械 发表时间:2016-05-29 09:04

  WOGUODADUOSHUWUKUANGCHUANGWEISHIYINGXIMAIXINGHEIWUKUANGCHUANG,CAIKUANGFANGFADUOWEILIUKUANGFA,ZAIKUANGSHIHUICAIZHONGDAIRUDALIANGDEWEIYAN,ZAOCHENGKUANGSHIPINHUA,CAIKUANGPINHUALVPUBIANZAI70%YISHANG,YIZHIKUANGSHIRUXUANPINWEIDI。TONGGUOCUXUANXIKUANG,YUXIANDIUQIDALIANGWEIYANJIFEISHI。TIGAOKUANGSHIRUXUANPINWEI,SHIJIANGDIXUANKUANGSHENGCHANCHENGBENDEZHONGYAOTUJING。JIANGXIGANNANMOUWUKUANGSHANXUANKUANGCHANGZAIZAODIUDUODIUFEISHIHETIGAOFEISHIXUANCHULVFANGMIANZUOLEYIXIEGONGZUO,QUDEYIDINGCHENGXIAO,GAIXUANKUANGCHANGFEISHIXUANCHULVDUONIANLAISHIZHONGZAI65%YISHANG。

  GAIKUANGWEIGAOWENREYECHONGTIANSHIYINGMAIXINGWUKUANGCHUANG,ZHUYAOJINSHUKUANGWUWEIHEIWUKUANG,BANSHENGJINSHUKUANGWUWEIHUANGTIEKUANG、BAIWUKUANG、HUIMUKUANG、HUIBIKUANG、ZIRANBI、CIHUANGTIEKUANG、HUANGTONGKUANG、XISHI、FANGQIANKUANG、SHANXINKUANG、DUSHA、LINYIKUANGDENG,MAISHIKUANGWUZHUYAOWEISHIYING,QICIWEIZHANGSHI、YINGSHI、FANGJIESHI、LVZHUSHI、LINHUISHI、YUNMU、DIANQISHIDENG,YANSECHENGBAISE、RUBAISE,WEIYOUZHIGUANGZEHUOBOLIGUANGZE。WEIYANWEIBIANZHIYAN、QIANMEIYANDENG,YANSECHENGHEISE、HUIHEISE。HEIWUKUANGFUCUNYUSHIYINGMAIZHONG,CHENGBANZHUANG、ZHUZHUANGJIEJINGHUOTUANKUAIZHUANGJIHETICHANCHU,WEICULIBUJUNYUNQIANBU,1.5mmJIBENDANTIJIELI,ZHI0.1mmWANQUANDANTIJIELI。QITALIUHUAKUANGWUCHENGDANTIHUOJIHETIYUHEIWUKUANGYIYANGQIANBUZAISHIYINGMAIZHONGHUOSHIYINGYUWEIYANDEJIAOJIEJIECHUDAIZHONG。HEIWUKUANGYANSEWEIHESE、HEIHESE,JINGANGHEBANJINGANGGUANGZE,MIDUYUE7.5。WEIYANYUMAISHIHEIBAIFENMING,RONGYISHIBIE。

青海快3   GENJUYOUYONGKUANGWUDEFUCUNTEXING,KUANGSHIZHONGMAISHIHEWEIYANHEIBAIFENMING,RONGYISHIBIE,QIEWEIYANKUANGHUASHENSHAO,CAIYONGSHOUXUANDEJIANDANGONGYILIUCHENG,JINXINGFANSHOUXUANDIUFEI,TIGAOKUANGSHIRUXUANPINWEIHECHULINENGLI。GAIKUANGCUXUANDIUFEIGONGYILIUCHENGJINGGUODUONIANDEJISHUGAIZAO,JIANGYUANLIUCHENGSIJISHOUXUAN,LIDUXIAXIANWEI25mm,GAIZAOWEIWUJISHOUXUAN,LIDUXIAXIANJIANGDIDAO19mm,TONGSHIDUI25~30mmHE19~25mmLIANGGELIJIZENGJIADONGSHAITIAOTAIYUXUANKUAIWU,DUJUEDANTIKUAIWUDESUNSHI。

  JINGGUOQIANRENDEJINGYANZONGJIE,GUINALEWUKUANGSHANXUANKUANGDE“ZAOSHOUDUOSHOU,JINGGONGXIZUO”、“ZAODIUDUODIU,FENJIRENXUAN”DEYUANZEHE“JING、KONG、ZAO、YUN、FEN、XI、JI、ZONG、DU、SHENG”DESHIZICUOSHI,DUIWUXUANKUANGSHENGCHANJISHUGUANLIJUYOUHENQIANGDEZHIDAOZUOYONG。GAIKUANGJIEHESHIJI,ZONGJIELEJISHUHEGUANLILIANGFANGMIANDECUOSHIYUJINGYAN,QUDELEJIAOHAODEXIAOGUO。

青海快3   (1)JIANGDISHOUXUANLIDUXIAXIAN。RANGSUOYOUDEYUANKUANGDOUJINXINGSHOUXUANDIUQIFEISHISHILIXIANGDE,DANSHI,SHOUXUANLIDUGUOXIAO,SHIBIEJIAOKUNNAN,QIESHOUXUANXIAOLVDI,ZONGHEXIAOYICHA。GAIKUANGBASHOUXUANLIDUXIAXIANQUEDINGZAI19mm,SHIJIANZHENGMINGBIJIAOSHIYI,DABUFENDEYUANKUANGSHIDOUJINGGUOSHOUXUANDIUFEI,JINZUIDAXIANDUDIUQIFEISHI。

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  (4)动筛跳汰预选回收块钨。单体块钨与嗣岩在颜色上比较相似,人工识别容易失误而丢失。利用耗水量小,选别粒度粗的动筛跳汰机青海快3对-30+25mm、-25+19mm两个级别手选给矿进行预选,选出块钨,消除了人工识别块钨的失误,减少了块钨损失,达到了早收多收的效果。

青海快3   (5)XUANZESHIYIDESHOUXUANPIDAISUDU。SHIYIDESHOUXUANPIDAISUDU,DUITIGAOSHOUXUANXIAOLV,JIANSHAOJINSHULIUSHIZHIGUANZHONGYAO。SUDUGUOKUAI,SHOUXUANRENYUANYITOUHUNYANHUA,DONGZUOSHIWU,MAISHIHEYOUYONGKUANGWUXUANBUGANJING,ZAOCHENGJINSHULIUSHI;SUDUGUOMAN,ZESHOUXUANXIAOLVDI,SHENGCHANNENGLIXIAO。GAIKUANGSHOUXUANPIDAISUDUXUANDING10m/min。

  在井下采矿出矿采取就地剔废用于采空充填、减少大块废石出窿措施的情况下,多年来,该矿废石选出率依然保持在65%以上的较高水平。通过对粗选工艺流程的改造,增加手选级别,降低手选粒度下限,采用动筛跳汰机预选块钨等技术改造措施,创新手选计量、按劳取酬的激励机制。充分调动手选作业人员的积极性。经过近几年的生产实践,粗选废石选出率由改造前的59.72%~62.48%提高到65.22%~68.17%,取年平均值指标对比,废石选出率提高了5.17%,而选矿回收率等其它技术指标基本不变,在同等原矿处理量的情况下,减少了破碎磨矿和重选处理量,节约了破碎磨矿重选生产成本。同时,动筛跳汰回收块钨回收率六年平均0.70%,比改造前多收了0.32%,实现了单体块钨的早收多收,减少了单体块钨在破碎磨矿作业中的过粉碎,对提高选矿回收率非常有利。

  对提高废石选出率的方法与途径进行过多方面的研究,如光电选矿、磁光选矿、重介质选矿等,都获得了较好的技术经济指标,由于矿山资金问题和其它原因,这些选矿方法还较难代替手选作业。主要是手选工艺简单,劳动力成本低,可靠性强等。但是,人也有脆弱的一面,人的思想情绪、工资待遇、工作环境、激励机制等,都会影响人的工作效率和手选技术经济指标。因此,通过技术手段改善手选工艺条件,提高技术经济指标,同时创新管理体制,建立激励机制,对调动手选人员积极性,提高废石选出率,同样有较大的帮助。上述提高废石选出率的工艺方法和措施,是该矿历年对手选技术改造和管理经验的总结。该矿为进一步提高废石选出率,多丢废石,探索过丢弃无矿化的纯脉石,由于手选人员较难识别纯脉石和其它原因,没有实现,以致于逢脉石即选,给磨矿、重选作业增加了不必要的成本。做到丢弃无矿化的纯脉石,而不造成有用矿物的丢失,尽最大可能地提高废石选出率,是今后探索的方向。