青海快3

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提升富粉精矿品位的改进型跳汰选矿工艺

责任编辑:金工机械 发表时间:2016-05-15 08:59

  随着市场用户对粉精矿品位要求的提高,选厂也要求跳汰选别作业提高品位,以便使综台粉矿品位达54%以上。由于入选矿石品种多,品位变化大,跳汰机4个分选室的选别结构频繁出现跳空现象,跳汰机不稳定,影响精矿品位的提高。针对以上问题,我们对梯形跳汰机进行了改进,把1200mm×2000mm×3600mm梯形跳汰机原4室选分区结构改为3室选分区结构,收到一定的效果。

  经过统计,富粉跳汰生产指标可以看出,大多数月份的精矿品位还是偏低的,它进入综台粉矿中,降低了综合粉矿的品位。

青海快3   YUANKUANGXINGZHIDEDUOBIAN、FUZA、BUWENDINGSHIYINGXIANGTIAOTAIXUANBIEDEZHUYAOYUANYINZHIYI。JINSHUKUANGWUZHUYAOWEICHITIEKUANG,QICIWEIJIAXIANGCHITIEKUANG、CITIEKUANG、HETIEKUANGJIHUANGTIEKUANG;MAISHIKUANGWUZHUYAOWEISHIYING,QICIWEIJUANYUNMU、BAIYUNSHI、GAOLINGSHIDENG。ZHUYAOKUANGWUDEQIANBULIDUYIBANZAI0.015~0.105mm,PINKUANGHEGAOLUKUANGDEBIZHONGCHAZAI1.7ZUOYOU。YINCI,DANGCAICHANGPEIKUANGGAOLUKUANGPEIYIDINGLIANGDEPINKUANGXIACAOSHI,TIAOTAIJISHIWUFABAPINKUANGZHEIYIBUFENFENXUANCHULAIPAOWEIDE。TIAOTAIXUANBIEZHUYAOSHIJINKENENGDIHUIFUKUANGWUDEDIZHIPINWEI,DANGCAICHANGDIZHIPINWEIPIANDISHI,TIAOTAIYEWUFAJIANGQIJINGKUANGPINWEITIGAO。LINGWAI,DANGCAICHANGXIAPINGLUKUANGSHI,TIAOTAIDEWEIKUANGPINWEIYENANYUJIANGXIALAI。

  JINGQUYANGHUAYAN,FUFENTIAOTAIJINGKUANGZHONG+6mmHE6~2mmLIJIPINWEIXIANGDUIYUANKUANGDEFUJIGAO,-2mmLIJIPINWEIZEJIAODI。YINCI,DANGYUANKUANG-2mmLIJIHANLIANGGUODASHI,YESHIZAOCHENGTIAOTAIJINGKUANGPINWEINANYUTIGAODEKEGUANYINSU。

青海快3   JIKUANGDEWENDINGXINGCHA,YUANTIAOTAIDEYUANKUANGZHUKUANGCANGYINQITAYUANYINYIBUYONG,SHIDETIAOTAIDEJIKUANGSHENGCHANSHI:PINGLUKUANG、GAOLUKUANGLIANGXITONGTONGBUJINXING。ERFUKUANGXITONGYIYOUGUZHANG,JIUHUISHITIAOTAIDEJIKUANGDUANDUANXUXU,ZAOCHENGTIAOTAICHUANGCENGWENDINGXINGCHA。

青海快3   1200mm×2000mm×3600mmTIAOTAIJIWEICEDONGXINGGEMOTIAOTAIJI,SHAIMIANZIJIKUANGDUANXIANGPAIKUANGDUANKUOZHAN,CHENGTIXINGBUZHI,QUANJIGONGZUOMIANJIDA5.76m²,ZHONGKUANGWUCAIYONGTOUSHAIPENGLIAOFAPAICHU。GEMOYUSHAIBANJIANBAOCHIZHEYIDINGDEGAODUCHA,BINGZAISHAIBANXIAMIANSHEZHIQINGXIEDANGBAN,CONGERSHIMAIDONGSHUILIUJUNYUNDIFENBUZAIZHENGGESHAIMIANSHANG。GAISHEBEIYOUYUJIEGOUSHANGDETESHUXINGERJUYOUYIXIETEDIAN,JISHAIMIANYANKUANGJIANGLIUDONGFANGXIANGYOUZHAIBIANKUAN,KUANGJIANGDELIUSUJIANHUAN,YIBANWEIKUANGDUANDEKUANGJIANGLIUSUZHIYOUJIKUANGDUANDE75%ZUOYOU。YOUYULIUSUJIANGDI,WEIBUCHUANGCENGJIANBO。DANGFUFENKUANGYUYIBANMAISHIBIZHONGCHAJIAODASHI,QIFENCENGSHIJIANXIANGDUIYAOQIUJIAODUAN。YINCI,DANGBIZHONGCHAJIAODADEFENKUANGJINRUTIXING4SHITIAOTAIJIXUANBIESHI,YOUYUJULIZHANG,FENXUANSHIJIANGUOZHANGERDAOZHIDI4SHIJINGCHANGTIAOKONG,WUWEIKUANGPAICHU。YUSHI,WOMENJIANGDI4SHIFENGDIAO,DAIDONGDI4SHIGEMODELIANGANYECHAICHU。

  GAIJINQIANTIAOTAIJIJIKUANGDUANKUAN1200mm,PAIKUANGDUANKUAN2000mm,JITIZHANG3600mm,CHUANGCENGMIANJIWEI5.76m²。

青海快3   CHONGCHENG:1~4SHI(35、30、27、10)mm;

  CHONGCI:1~4SHI(130、200、230、250)CI/min;

  CHUANGSHILIDUPEIBI:40~50mmZHAN1/3,25~35mmZHAN2/3;

  RENGONGCHUANGCENGHOUDU:70~90mm。

青海快3   GAIJINHOUTIAOTAIJIJIKUANGDUANKUANRENGWEI1200mm,PAIKUANGDUANWEI1750mm,JITIZHANGWEI2600mm,CHUANGCENGMIANJIWEI3.84m²。

青海快3   CHONGCHENG:1~3SHI(35、30、25)mm;

  CHONGCI:1~3SHI(130、200、230)CI/min;

  CHUANGSHILIDUPEIBI:35~45mmZHAN1/3,25~35mmZHAN2/3;

  RENGONGCHUANGCENGHOUDU:80~100mm。

  梯形跳汰机由4室改为3室后,其它工艺参数如床层厚度、冲程、给矿量等也相应做了一些调整。现在生产中,跳汰机跳空现象基本没有了,床层稳定性比改进前好,精矿品位也得到了提高,而且操作工人易于调整。梯形跳汰机改造后,精矿品位平均提高了1.02%,尾矿品位提高了3.10%。但也出现易跑尾的新问题,床石易后移从尾部排出,由于矿石性质波动大,操作工人还需频繁地调整给矿量、给水量等。因此,选矿厂的工程技术人员也在不断地探索新的跳汰选矿设备和选矿工艺