青海快3

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铁矿磁滑轮跳汰预选抛尾试验

责任编辑:金工机械 发表时间:2016-05-28 09:03

  DAYETIEKUANGSUIZHECAICHANGTIAOJIANDEBIANHUA,2005NIANYIHOU,GECAIQUDELUTIANKAICAIXIANGJIZHUANRUDIXIAKAICAI,DALIANGFEISHIJIANGHUNRUKUANGSHIZHONG,FEISHIHUNRULVYOU3%~5%ZENGJIADAO 15%~30%,ZAOCHENGKUANGSHIDEPINHUALVSHANGSHENG,CONGERJIANGDILEYUANKUANGPINWEI。YINCIKUANGSHIJINRUMOKUANGZUOYEQIANCAIYONGYUXUANFANGFACHUQUHUNRUKUANGSHIZHONGDEFEISHI,KEDADAOJIENENGJIANGHAO、JIANGDIXUANKUANGJIAGONGCHENGBEN、ZENGJIAQIYEJINGJIXIAOYIDEMUDE。WEITANQIUSHIDANGDEYUXUANGONGYI,JINNIANLAIZUOLEDALIANGDESHIYANYANJIUGONGZUO。YANJIUBIAOMING,CAIYONGCIHUALUN-TIAOTAILIANHEYUXUANGONGYILIUCHENGKEYOUXIAODIPAOQUHUNRUKUANGSHIZHONGDEFEISHI,HUIFUKUANGSHIDEDIZHIPINWEI。

青海快3   DAYETIESHANKUANGCHUANGYOU6GEDAKUANGTIZUCHENG,ZIXIXIANGDONGWEITIEMENKAN、LONGDONG、JIANLINSHAN、XIANGBISHAN、SHIZISHANHEJIANSHANKUANGTI。CHUJIANLINSHANKUANGTIWEIMANGKUANGTIWAI,QIYUGEKUANGTIJUNLUCHUDIBIAO。TIESHANKUANGCHUANGFENYANGHUADAIHEYUANSHENGDAI。YANGHUADAIYIJIAXIANGCHITIEKUANGKUANGSHIWEIZHU,YANGHUASHENDUYIBANZAIDIBIAOYIXIA100mYINEI。MUQIANYANGHUADAIYICAIKONG,JINSHENGXIASHAOLIANGSHANGBUGUABANGKUANGSHI。YUANSHENGDAIWUZHIZUFENFUZA,GENJUQIKUANGWUZUCHENGJIJIEGOUGOUZAOTEZHENGFENWEICITIEKUANGKUANGSHIHECHITIEKUANG-LINGTIEKUANG-CITIEKUANGKUANGSHI(JIANCHENGHUNHEKUANG)。

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  (2)HUNHEKUANGKUANGSHI。JINSHUKUANGWUZHUYAOYOUJIAXIANGCHITIEKUANG、LINGTIEKUANG、CITIEKUANGZUCHENG,QICIWEIHUANGTIEKUANG、HUANGTONGKUANGDENG。MAISHIKUANGWUYOUFANGJIESHI、BAIYUNSHI、LVNISHIDENG。KUANGSHICHENGJIAODAILIZHUANGJICANYU-HEJINGJIEGOUWEIZHU,QICIWEIFENGWOZHUANGJIEGOU、HUANDAIJIEGOU、FANGSHEZHUANGJIEGOU、SHUZHUANGJIEGOU。KUANGSHIGOUZAOYIHUABANZHUANG、SITIAODAIZHUANGGOUZAOWEIZHU,QICIWEIJIAOLIZHUANG、KUAIZHUANG、MAIZHUANGDENG。

  2005年以后大冶铁矿各采区主要供矿指标,围岩混入率平均为22.07%。根据入选原矿的矿石性质,对主要含磁铁矿的矿石采用磁滑轮预选方法。对主要含赤铁矿、菱铁矿等弱磁性铁矿石,根据矿石与脉石间的密度差,采用跳汰选矿青海快3法处理。试验得出,赤铁矿密度为4.28g/cm³,菱铁矿密度为3.60g/cm³,废石密度为2.6g/cm³左右。按照重选矿石的可选性准则判断,属易选矿石。

  (1)CIHUALUNSHIYAN。SHOUXIANJINXINGLECIGANYINGQIANGDU、PIDAISUDU、GEBANWEIZHI、JIKUANGLIANGDENGCANSHUDETIAOJIANSHIYAN。GENJUSHIYANJIEGUOQUEDINGGANSHICIXUANPAOWEISHIYANCANSHUWEICIGANYINGQIANGDU 100mT,PIDAISUDU1.2m/s,FENLIGEBANWEIZHI0mm,JIKUANGLIANG20t/h。BINGJINXINGLE75~0、75~12、75~2、12~2mm4ZHONGLIJIDEGANXUANSHIYAN。JIEGUOBIAOMINGFENJIXUANYUBUFENJIXUANXIAOGUOCHABUDUO。

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  (2)YUANKUANGXIANJINGPAOWEIHOU,GANXUANJINGKUANGHETIAOTAIJINGKUANGHUNHEHOUZAIRUXUANLIUCHENG;

  (3)YUANKUANGXIANJINGPAOWEIHOU,GANXUANJINGKUANGHETIAOTAIJINGKUANGFENZHUFENXUANLIUCHENG。

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  大冶铁矿使用的白雉山尾矿库从1988年投产至今已有18年,设计I期总库容为1630万m³,相应的总坝堆积高为113.5m,堆积标高为 186m,服务年限为21年。后期按矿山保有地质储量计算,所需总库容为2450万m³,相应的总坝高为139.5m(堆积标高为212m)。截止到 2006年6月底,共堆存尾矿558.5万m³,子坝标高为140.06m,距Ⅰ期工程结束时,尚存库容为716.675万m³。计算可知,尾矿库Ⅰ期工程库容要满足尾矿堆存的需要,选矿工艺青海快3若不加以改造,在未到I期工程的库容时,就需进行Ⅱ期工程的购地及其它辅助工程,否则现存库容尚缺384.185万 m³;采用预选工艺后,抛出了产率20.60%的废石,使总尾矿量减少,在处理完采场的保有地质储量矿石的情况下,白雉山尾矿库Ⅰ期工程库容仍富余 283.115万m³可以堆存尾矿。

青海快3   CIHUALUN-TIAOTAIYUXUANPAOWEISHIYANJIEGUOBIAOMING,DANGFEISHIHUNRULVWEI22.07%SHI,PAOWEICHANLVKEDA20.60%,TIEPINWEIZHIYOU 6.57%,FEISHIPAOQULVWEI94.25%,KUANGSHIHUISHOULVWEI91.18%。CIHUALUN-TIAOTAIYUXUANPAOWEIGONGYIJISHUXIANJIN,ZHIBIAOKEKAO,DANGDAYETIEKUANGNIANCHULI150WANtYUANKUANGSHI,MEINIANKEJIANSHAORUMOLIANGYUE30WANt,YUJINIANJINGYINGXIAOYIZAI970WANYUANYISHANG,BINGKEJIANSHAOWEIKUANGKUTOUZI。