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:2001-03-10:,,1988,,(714102),,,BF:TD954:A:1006-2602(2001)03-0026-04THETECHNOLOGICALDESIGNANDPRODUCTIONPRACTICEOFTECHNICALTRANSFORMATIONONIMPROVINGTHEMOLYBDENUMCONCENTRATEGRADEWangYijing(JinduichengMolybdenumMiningCorporation,Huaxian,Shaanxi,714102)AbstractInthelightofexistedproblemsincleaningtechnologyandflotationequipmentsinSanshimudicon2centrator,thetechnicaltransformationofmolybdenumconcentrategradewasfinished.Onthebasisoftestanddesignprinciple,theplanfortechnicaltransformationwasraised.Thecorrectnessfortechnologicaldesignandslectionofequipmentswastestedandverifiedbyproduction,andthetechnicoeconomicalindexwithsatisfactorywasobtained.KeywordsFlotation,BFflotationmachines,Technicaltransformation,Molybdenumconcentrates,Grade,6600t/d,0.120%,45%,85%,,,8000t/d,0.130%0.135%,51%52%,,54%,,,,,,,1999108,53.65%54%,86.98%,,1,,(%):Mo0.135,Cu0.038,Pb0.004,S3.06,TFe6.56,SiO258.53,CaO2.89,MoO30.005,P2O50.25,TiO20.87,CaF21.16,Al2O311.98,,-0.592mm,,,,,24,:2.5%3.5%;1,:25320016CHINAMOLYBDENUMINDUSTRYVol.25No.3June2001,-38m45%50%,6A(),,,-38m75%80%,5A51%52%,,,,:(1),2.5%3.5%,;(2),,78min,97%;(3),(-38m)40%35%,,(4)A,,,-38m90.89%,3.28%33.1199810-11,,11%5.3857.1090.7994.620.3369.21100.003.384100.001.;2.-38m85%90%;3.,,,,,,,3.2(1);(2),;(3),;(4);(5),;(6)3.3,,,;BFCZBF-4.0,BF-1.5BF-1.5BF-1.2,BF-1.2280mm,,,3.4,,,1,212%2.3145.0089.000.20854.0086.502.1060.1542.50100.000.130100.008300t/d97.19%72253:3.5,:46A,BF-4.0;,,6A;,44.1,,,,4.219991030,,:4.2.1BF-4.0,,,,,,,85%86%:,4.2.2,51%52%BF-1.5(290r/min),,:,310340r/min4.2.3,3%4%,,:,,;,4.2.4,,,,:,,,4.3,,,3,43%0.1343.7851.5487.4997.2085.0419991-60.1425.2053.6589.2597.4686.9820003-60.1425.2654.8089.2397.2486.7654%0.1185.3154.0589.2397.3286.84+1.42+2.11+1.76+0.26+1.9420003-619991-6:19991120002,4/%MoSiO2PbCuCaOP51.545.660.0450.1350.490.01019991-653.654.090.0390.0920.420.01020003-6+2.11-1.57-0.006-0.043-0.07034,53.65%86.98%,2.11%1.94%;5.20%89.25%,1.42%1.76%;0.26%,;,SiO21.57%,,,,,54%,0.130%,54%,86%,,,,,,,,55.1,:8220016(1),5%,;(2),3,,,;(3),,;(4),,;(5)BF,,,;(6),5.2,,,,8,,2.11%1.94%,,,6(1),,(2),,,,(3),,,,,,,1,.[R].1998.2.[R].1998.3.[R].2000.4.[R].2000.,,21,,,,,,,21,,,,31(11Cr-2Ni);2(12Cr-6.5Ni-1.5Mo)10mg/kg;3(12Cr-6.5Ni-2.5Mo)50mg/kg,,,,,8020%9030%,2000170t,2005250t,2010300t,,,(),:0.08%,2%,0.01%,0.005%,0.04%,0.15%,DP0.15%,,,,,,30%()92253: