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Table of Content
31 May 2011, Volume 27 Issue 3
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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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Anewwholegradetechnologyofweakmagneticironseparationfloatationdesulphurizationti taniumfloatationwasputforwardtosolvetheproblemsofcomplicatedprocessandlowilmeniterecovery inPanzhihuaIronandSteelPlant.Thenewprocessissimpleandthetestindexissatisfying.Inanex periment,idealmineralindicatorsof474% titanium concentrategradeand458% 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.Theresultsshowedthataseparationindexof2200% coppercon centrategradeand8372% 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:Thelowandefficientoperationofmodernlargescaleprebakedaluminumreductioncellpro 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,thepaperdiscussedthetechnologytodealwithlowqualityfuelandproposedanopti 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 tractpeopleswidespreadconcernandattention.ThepaperdiscussedthehistoryandstatusquoofTRIP steel,introducedtheconstitutivemodelandmartensitictransformationkineticsmodelbasedonTRIP strainandsummarizedtheprogressandresultsofnumericalsimulationandphysicalexperimentsofTRIP steel,whichisofgreatsignificanceforthedesign,processandfollowupstudyofthesteel.
PredictionofPitWaterInflowinALeadzincMine
LI Wei-Ming
2011, 27(3): 26-30. doi:
10.3969/j.issn.1009-0479.2011.03.007
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Accordingtominegeologicalexplorationdata,thepaper,afteranalyzingthedepositshydro geologicconditionsandminewaterfillingfactors,estimatedthepitwaterinflowinTayuanLeadzinc 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,realtimematerialsandabundantinformation.Throughgeometriccorrectionandvectorizationon highprecisionremotesensingimagesinAnyicounty,theinvestigation,usingMapgisandEnvisoftware, obtainedaccuratelandusedataofAnyiin2008.Itlaysagoodfoundationforlandusemanagementand planningforAnyiCounty.
DesignandImplementationofEvaluatingSystem forNETbasedProjectsApplication
LIANG Ying
2011, 27(3): 37-40. doi:
10.3969/j.issn.1009-0479.2011.03.009
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Accordingtothecharacteristicsofevaluatingsystemforprojectsapplication,thepaperpro posedanoveralldesign,businessprocessandtheimplementationmethodsofASPNETthreetierframe 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.AccordingtoWienerKhintchinetheorem, thepapersuggestedanestimationmethodforpowerspectraldensityofthesignalsbasedonMatlabprogram ming.Simulationresultsshowthatthemethodissimpleandcomparativelyaccurate.
TrafficLightControlBasedonRTX51RealtimeOperatingSystem
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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WithanalysisoftheprincipleandapplicationofRTX51realtimeoperatingsystemanditstraf 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.
DesignofNCTwodimensionalTurntable
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 posedadesignofCNCtwodimensionalturntable.Theactualuseshowedthatitsheadingaccuracyand waslessthan0050andthepitchaccuracywaslessthan0010,meetingtheneedsofproducttesting.
InfluenceofOxygenenrichedIntakeAirforSmokeandNOxofaTurbochargedDieselEngine
ZOU Shun-Qian-1, SHEN Ying-Gang-2, BI Ke-Gang-3
2011, 27(3): 63-66. doi:
10.3969/j.issn.1009-0479.2011.03.02
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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.1009-0479.2011.03.016
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Beingaheatsourceofenvironmentalenergysaving,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.1009-0479.2011.03.017
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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.1009-0479.2011.03.018
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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.1009-0479.2011.03.019
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Trafficsafetyproblemhasbecomeaconcernaroundtheworld.Manycountrieshaveputtraffic safetyinthefirstplaceintrafficsustainabledevelopment,butthereisstillnoresearchsysteminourcountry forevaluatingsafetyofmountainlowgraderoad.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 thatitcorrespondedtoKuhnHuckcondition,thusgettingthenecessarybutnotsufficientconditionof constrainedextrema,whichprovidedanideaforgettingthesolutionofconstrainedextrema.
SolutionofFirstorderOrdinaryDifferentialEquationswithIntegratingFactors
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,teachersupplementedteachingmodecombiningstudentprofessionalcompetencewithprofes sionalandsocialability.Throughsettingupanevaluationsystem integratedtheoryandpractice,the teachingmodecanfullyexertstudentsinitiativeandcreativity.
OnTrainingStudentsOccupationalAbilitythroughProjectTeaching
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 lyzedtheimportanceofprojectteachingintrainingstudentsoccupationalability.Projectteachingis characterizedbyopenness,selfadaptabilityandclosedloopcontrollability,whichishelpfulforstudents tostudyinitiativelyandimprovetheircomprehensivequalityofoccupationalability.Theexperiencewill offerareferenceforotherhighervocationalcollegestocarryoutreforminsamecourses.
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