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Table of Content

    31 May 2011, Volume 27 Issue 3
    OnIlmeniteFlotationNewTechnology
    WEI Zhi-Cong, FANG Jian-Jun, XU  Xiang, LIU  Yang
    2011, 27(3):  1-3.  doi:10.3969/j.issn.1009-0479.2011.03.001
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    Anewwholegradetechnologyofweakmagneticironseparationfloatationdesulphurizationti taniumfloatationwasputforwardtosolvetheproblemsofcomplicatedprocessandlowilmeniterecovery inPanzhihuaIronandSteelPlant.Thenewprocessissimpleandthetestindexissatisfying.Inanex periment,idealmineralindicatorsof474% titanium concentrategradeand458% titanium recovery weregot.Theexperimentshowedthatfactorsastitanomagnetite,grindingfinenessandpHvalueofpulp hadsignificantinfluenceonflotation.
    MineralProcessinaRefractoryLowGradeCopper
    PENG Fen-Lan, YANG Jia-Wen, ZHOU Xiao-Si, XU  Zheng
    2011, 27(3):  4-7.  doi:10.3969/j.issn.1009-0479.2011.03.002
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    Atestwascarriedoutontheconditionsofgrindingfinenessunderdifferentgrindingfineness inalowgradecopperoreinYunnan.Theresultsshowedthataseparationindexof2200% coppercon centrategradeand8372% recoverywasobtainedwhenusingcoarsegrindingandcrudeconcentratere grindingprocesswith70% -200meshfineness.
    ANewProcessofDeoxidizingSelenium inLiquidSO2
    LI  Ying, XU Yang-Liang, SHA  Mei, YANG Xiao-Ming
    2011, 27(3):  8-11.  doi:10.3969/j.issn.1009-0479.2011.03.003
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    ThispaperdescribedanewprocessofdeoxidizingtheseleniuminliquidSO2totreatthesolu tionofremovingtheseleniumofanodeslimeinthecombinedconcentrationandsmeltingprocessinthe RareandPreciousDivisionofYunnanCopperCo.Ltd.Theprocessishigheffectivetocomprehensively reclaimtheseleniumfromthesolutioncontainingselenium,whichcanproducehighgradeseleniumprod uctandincreasethecomprehensiverecoveryofselenium.
    IndustrialTestofModifiedAluminum Anode
    LIU Li-Qun, XIA Yi-Bin, JI Feng-Wu
    2011, 27(3):  12-15.  doi:10.3969/j.issn.1009-0479.2011.03.004
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    Abstract:Thelowandefficientoperationofmodernlargescaleprebakedaluminumreductioncellpro posesnewrequirementsoncarbonanode.Thepaper,withanodemodificationasabreakthrough,devel opedtwotypesofmodifiedanodeandcarriedoutanindustrialteston200kAserieselectrolyzer.With largeamountsofproductiondata,thepaperanalyzedandconcludedtheindustrialapplicationofmodified anode.
    OnReasonableOperatingSystem forBlastFurnace
    LI Gang-Yi, ZHOU Hong-Jun, JIN  Song
    2011, 27(3):  16-19.  doi:10.3969/j.issn.1009-0479.2011.03.005
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    Accordingtotheexistingfuelconditions,themechanismofblastfurnaceandpracticeofpro ductionoperation,thepaperdiscussedthetechnologytodealwithlowqualityfuelandproposedanopti mizedmeasureonBFcontroltoensurethestableoperationofblastfurnace.
    AReviewofExperimentalStudyofTRIPSteel
    ZHANG De-Feng-1a, 2 , DU Zhong-Lin-1b, SUN Wen-Xing-1a, WANG  Wang-1a, JIANG  Li-1a
    2011, 27(3):  20-25.  doi:10.3969/j.issn.1009-0479.2011.03.006
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    Excellentmechanicalproperties,suchashighstrengthandgoodductilityandtoughness,at tractpeopleswidespreadconcernandattention.ThepaperdiscussedthehistoryandstatusquoofTRIP steel,introducedtheconstitutivemodelandmartensitictransformationkineticsmodelbasedonTRIP strainandsummarizedtheprogressandresultsofnumericalsimulationandphysicalexperimentsofTRIP steel,whichisofgreatsignificanceforthedesign,processandfollowupstudyofthesteel.
    PredictionofPitWaterInflowinALeadzincMine
    LI Wei-Ming
    2011, 27(3):  26-30.  doi:10.3969/j.issn.1009-0479.2011.03.007
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    Accordingtominegeologicalexplorationdata,thepaper,afteranalyzingthedepositshydro geologicconditionsandminewaterfillingfactors,estimatedthepitwaterinflowinTayuanLeadzinc Mine.
    LandUseInvestigationBasedonRemoteSensing
    LIU Xiao-Chun
    2011, 27(3):  31-36.  doi:10.3969/j.issn.1009-0479.2011.03.008
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    Landuseinvestigationisanimportantbasicworkforeffectivelandmanagement.Remotesens ingimagesarewidelyappliedtothecurrentlanduseinvestigationduetoitsadvantagesofwidedetection range,realtimematerialsandabundantinformation.Throughgeometriccorrectionandvectorizationon highprecisionremotesensingimagesinAnyicounty,theinvestigation,usingMapgisandEnvisoftware, obtainedaccuratelandusedataofAnyiin2008.Itlaysagoodfoundationforlandusemanagementand planningforAnyiCounty.
    DesignandImplementationofEvaluatingSystem forNETbasedProjectsApplication
    LIANG  Ying
    2011, 27(3):  37-40.  doi:10.3969/j.issn.1009-0479.2011.03.009
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    Accordingtothecharacteristicsofevaluatingsystemforprojectsapplication,thepaperpro posedanoveralldesign,businessprocessandtheimplementationmethodsofASPNETthreetierframe work.Thesystemhassomepracticability.
    Program DevelopmentofShaftEngineeringCourseDesign
    XIA Jian-Bo-1, LIANG  Cheng-2
    2011, 27(3):  41-44.  doi:10.3969/j.issn.1009-0479.2011.03.010
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    ThepaperintroducedtheprocessofdevelopingthesoftwareofShaftEngineeringcoursedesign withAutoCADActiveX/VBAsecondarydevelopmenttechnology.Theprogramtransformedabundantwork ofplotting&calculatingintosimpleprogramoperation,whichgreatlyimprovedtheefficiencyofcourse design.
    EstimationMethodforPowerSpectralDensityofStationarySignals
    YUAN  Hong-1, ZHANG Hui-Xing-2
    2011, 27(3):  45-47.  doi:10.3969/j.issn.1009-0479.2011.03.011
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    Inpractice,manymathematicalexpressionscannotbederivedfromstationarysignals,asthereare somedifficultiesingettingthepowerspectraldensityofthesignals.AccordingtoWienerKhintchinetheorem, thepapersuggestedanestimationmethodforpowerspectraldensityofthesignalsbasedonMatlabprogram ming.Simulationresultsshowthatthemethodissimpleandcomparativelyaccurate.
    TrafficLightControlBasedonRTX51RealtimeOperatingSystem
    YANG  Yu-1, ZENG Xie-Hua-1, TONG Yun-Feng-1, TAN  Ke-2
    2011, 27(3):  48-51.  doi:10.3969/j.issn.1009-0479.2011.03.012
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    WithanalysisoftheprincipleandapplicationofRTX51realtimeoperatingsystemanditstraf ficlightcontrolapplication,thepaperdiscussedthesoftwaredesignfortrafficlightcontrolsystem.The resultsshowthatRTX51caneffectivelyimprovetheefficiencyofsoftwaredesign.
    MCUDelayProgrammingandAccurateTimeCalculation
    TONG Yun-Feng, LI Guang-Hui, LI Zhi-Ping, LI  Yang, YANG  Yu
    2011, 27(3):  52-56.  doi:10.3969/j.issn.1009-0479.2011.03.013
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    Thepaperintroducedthedesignofdelayprogrammingandaccuratetimecalculationof51 MCUandgavethreetypicaldelayingprogrammingcaseswithsoftwareassembly,softwareCprogramand interruptCprogram.Itanalyzedandcalculatedtheirdelayeffect.
    CentrifugeSpatulaDeviceModelingandAnalysisofStiffness
    YANG Pu-Guo, CHEN  Jun, SUN Yu-Yi
    2011, 27(3):  57-59.  doi:10.3969/j.issn.1009-0479.2011.03.014
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    Throughanalyzingtheproblemsofvibratinganddamagesofscreenbasketcausedbythescrap erduringtheuseofP25T/Kspatulaautomaticcentrifugedevice,thepaperdiscussedthemodelingof centrifugespatuladeviceandanalyzeditstiffness.Theparameterstestedverifiedthereliabilityofthe model,anditshowedthatimproveddesignonthedevicewasfeasible.
    DesignofNCTwodimensionalTurntable
    XIE  Ying-1, XING  Yao-2
    2011, 27(3):  60-62.  doi:10.3969/j.issn.1009-0479.2011.03.015
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    Theautomatictestisapplicabletotestsofvarioustypesofequipment,andmovementposition simulationisthekeytoautomatictest.Toachieveposturesimulationinproducttesting,thepaperpro posedadesignofCNCtwodimensionalturntable.Theactualuseshowedthatitsheadingaccuracyand waslessthan0050andthepitchaccuracywaslessthan0010,meetingtheneedsofproducttesting.
    InfluenceofOxygenenrichedIntakeAirforSmokeandNOxofaTurbochargedDieselEngine
    ZOU Shun-Qian-1, SHEN Ying-Gang-2, BI Ke-Gang-3
    2011, 27(3):  63-66.  doi:10.3969/j.issn.1009-0479.2011.03.016
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    AturbochargeddieselengineisusedtoconductexperimentunderOxygen-enrichedintake air,inthispaper,theformationmechanismandtheinfluencefactorsofPMandNOxareintroduced,mo reover,changeofsmokeandNOxisstudiedundervariationaloxygenconcentration.Theresultsshowed thatOxygen-enrichedintakeaircouldobservablydecreasesmoke,butfollowingasharpriseofNOxat thesametime,soitisprerequisitetotakemeasurestosolvetheproblem.
    ApplicationofAirHeatPumpinIndoorSwimmingPool
    KONG Wei-Lin-1, WU Yan-Sheng-2
    2011, 27(3):  67-69.  doi:10.3969/j.issn.1009-0479.2011.03.017
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    Beingaheatsourceofenvironmentalenergysaving,reliableperformanceandhighthermalef ficiency,airheatpumpisbeingincreasinglyusedinourdailylife.Thepaperintroducedtheprincipleof airheatpumpanditsapplicationinaswimmingpool.Becauseofitsadvantagesineconomy,energyeffi ciencyandenvironmentalprotection,itcanbeusedwidelyinvariousindustries.
    EvaluationonEnergyEfficiencyinFrequencyTransformationofChilledWaterPump
    JIN Ying-Hui, TAN Chun-Jiang
    2011, 27(3):  70-73.  doi:10.3969/j.issn.1009-0479.2011.03.018
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    Frequencyconverterisusedinindustriesandenterprisesforspeedadjustmentandenergysav ing.Accordingtothestudiesonapplicationoffrequencyconverterinchilledwaterpumpmotorforenergy savinganditsuseinfactories,thepaperdiscussedwaystoimproveenergysaving,operationandmotor andpumplife.
    AnalysisoftheMonitoringResultsofASlopeStabilityinXiaowanHydropowerStation
    ZOU Xing-Hong-1, CHEN  Hao-2, PAN  Ping-3, LI Yao-De-2, 吕 Xing-2
    2011, 27(3):  74-78.  doi:10.3969/j.issn.1009-0479.2011.03.019
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    KongqueDitchQuarryisamainproviderofdamconcreteaggregateforXiaowanHydropower Station.A500mslopewillbegraduallyformedduringstonemining,therefore,itisnecessarytocheck thestabilityofthesloperegularly.Measuresassurfacedeformation,deepdeformationandsupporteffect wereusedtomonitortheslopedeformation,whichwouldprovideanimportantbasisandstrongsupport forunderstandingtheslopestability,carryingoutsafetyevaluationandsupportprogramadjustment.
    SustainableDevelopmentofMountainMineRoadTrafficSafety
    LIU Yu-Ying-1, LI Zheng-Qiang-2
    2011, 27(3):  79-83.  doi:10.3969/j.issn.1009-0479.2011.03.020
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    Trafficsafetyproblemhasbecomeaconcernaroundtheworld.Manycountrieshaveputtraffic safetyinthefirstplaceintrafficsustainabledevelopment,butthereisstillnoresearchsysteminourcountry forevaluatingsafetyofmountainlowgraderoad.Inthelightofthecharacteristicsmountainmineroad,the paperanalyzedroadtrafficsystemconsistedofpeople,vehiclesandroad,anddiscussedtheinfluenceofthe driver,motorvehicles,roadconditionsandtrafficenvironmentontrafficsafety,whichlaidbasisforstudying evaluationindexofsustainabledevelopmentoftrafficsafetyformountainmineroad.
    OnConditionsofConstrainedExtremum Problems
    WANG  Yue-1, YANG  Jiao-1, WANG Zhi-Yong-2
    2011, 27(3):  84-87.  doi:10.3969/j.issn.1009-0479.2011.03.021
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    Inpractice,constrainedoptimizationproblemisahotresearch.Theselectionofconstrainsis closelyrelatedtotheacquisitionofextremevalues.Tosolvetheproblemthatthealgorithmcanonlyob tainlocaloptimalsolutioninextremevaluetheoryandacceleratetheiterativeprocessofseekingsolu tions,thepaper,thisartidegivesassumptionsanddefinitionsontheoptimalityconditions,concluded thatitcorrespondedtoKuhnHuckcondition,thusgettingthenecessarybutnotsufficientconditionof constrainedextrema,whichprovidedanideaforgettingthesolutionofconstrainedextrema.
    SolutionofFirstorderOrdinaryDifferentialEquationswithIntegratingFactors
    HU Shu-Rong-1, YUE Pei-Peng-2
    2011, 27(3):  88-90.  doi:10.3969/j.issn.1009-0479.2011.03.022
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    Integratingfactorisacommonmethodtosolveordinarydifferentialequations.Thepaperdis cussedthenatureofintegratingfactorandwaystoidentifydifferentialequationsandsolveintegratingfac torsanddifferentialequations.
    DesignandPracticeofCurriculum AppraisalofTopographicSurve
    LI  Ming
    2011, 27(3):  91-95.  doi:10.3969/j.issn.1009-0479.2011.03.023
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    Accordingtothecurriculumstandardoftopographicsurvey,thepaper,aimingatcombining thetestcontentwithteachingobjectivesandactualproduction,suggestedanappraisalsystemofmultiprojectindifferenttimeandwithvariousmethods. Itcaneffectivelyimproveteachingquality.
    ExplorationandPracticeonCurriculum StandardofAirPollutionControlTechnologyBasedonWorkProcess
    YANG Li-Fang, XU  Jing, LIANG  Hong, LI  Ran, YU Liang-Mou, WANG  Lin
    2011, 27(3):  96-99.  doi:10.3969/j.issn.1009-0479.2011.03.024
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    Basedontheabilityneededbyoccupationalstatus,thecurriculumstandardofAirPollution ControlTechnologydividesteachingcontentintosixlearningsituationswithtypicaltasks.Itisastudent centered,teachersupplementedteachingmodecombiningstudentprofessionalcompetencewithprofes sionalandsocialability.Throughsettingupanevaluationsystem integratedtheoryandpractice,the teachingmodecanfullyexertstudentsinitiativeandcreativity.
    OnTrainingStudentsOccupationalAbilitythroughProjectTeaching
    LIANG  Hong, SU Xi-南, YU Liang-Mou, ZHOU  Qing
    2011, 27(3):  100-104.  doi:10.3969/j.issn.1009-0479.2011.03.025
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    Thepaper,withcasesofprojectteachinginSilicateSystemsAnalysisProjectlaboratory,ana lyzedtheimportanceofprojectteachingintrainingstudentsoccupationalability.Projectteachingis characterizedbyopenness,selfadaptabilityandclosedloopcontrollability,whichishelpfulforstudents tostudyinitiativelyandimprovetheircomprehensivequalityofoccupationalability.Theexperiencewill offerareferenceforotherhighervocationalcollegestocarryoutreforminsamecourses.