资源描述：
《Case Study - Advanced Flotation Control At First Quantum Minerals Kevitsa Mine.pdf》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。
1、advancedflotationcontrolatfirstquantummineralsKevitsaminevariablefeedcharacteristicssuchasprojectsworldwide.Primaryproductionelementsincludecopper,nickel,gold,zincandplatinum.headgrade,orehardnessandfeedBackgroundtonnagepresentedchallengesforLocatedinnorthernFinland,130kminsidetheArcticCircle
2、,theopenpitKevitsaminecommencedcommercialprocesscontrol,stabilityandultimatelyproductioninAugustof2012,processingapproximatelyfiveandahalfmilliontonsoforeannuallytoproduceperformance.nickel,copperandPGMconcentrates.Toexpediteproduc-tionramp-upandoptimiseongoingflotationperfor-mance,anextensiv
3、eadvancedflotationcontrolsolutionFirstQuantumMinerals(FQM)isarapidlygrowingwasimplementedbyOutotecincollaborationwithFQMCanadianbasedminingandmetalscompany,co-locatedKevitsa.Tooptimiseoperatingefficiency,significantintheUnitedKingdom,SouthAfricaandAustralia.FQMautomationwasbuiltintothedesign,
4、incorporatingmostcurrentlyoperatessevenminesandisdevelopingfiveofOutotec’sadvancedprocesscontrol(APC)solutions.cHallenGessolutionBenefits•Highlyvariablefeed-grade,•Outotecadvancedprocess•1.3%Curecoveryimprove-orehardness,orecontentcontrol(APC)solutions-mentwithhighergradewhen•Largescalefloatp
5、lantcustomisedtositeneedsAPCwasutilisedduring(including14x300m3cells)testwork•IncreasedprocessstabilityImplementationoftheAPCsolutionswasundertakenOutotecTankcell300m3(roughersection)downtotheinphaseswiththeflotationgradecontrolsystembeingOutotecTankcell20m3(finalcleanersection),largevari-add
6、edinNovemberof2013.Variablecharacteristicsinationsinfeedtonnageandheadgradecanhaveaseverefeedgrades,orehardnessandfloatablenonsulphideeffectontheprocessasawhole.gangue(NSG)contentpresentedchallengesforprocesscontrol,stabilityandultimatelyperformancewithrespectSuchalargescaleandvariableflotati
7、onplantrequirestometalrecoveriesandconcentrategrades.Theseastrongdegreeofprocesscontrol.APCsystemsofferafluctuationscreateanimperativetomaintaincontrolandsolutionthatcanundertakemultipletaskssimultaneouslystabilityoftheflotationcircuitunderan
