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风扫式煤磨动态选粉机改造.docx

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风扫式煤磨动态选粉机改造 1.Introduction Chaosandturbulenceinthecoalpowderselectionprocessarethemajorfactorsthatleadtopoorgrindingefficiencyandunstablesystemoperation.Asaresult,thewind-sweepingtypecoalmilldynamicselectionhasbecomeacriticalissueforcoal-firedpowerplantstoimprovetheiroperationandreduceemissions.Inthispaper,wepresentaproposalfortherefurbishmentofwind-sweepingtypecoalmilldynamicselection. 2.Background Wind-sweepingtypecoalmilldynamicselectionisacommontechnologyusedincoal-firedpowerplants.Thistechnologyinvolvestheuseofawind-sweepingbelttotransportcoalpowderintothecoalmill.Thecoalpowderisthengroundintofinepowderbythegrindingrollers. However,duetothechaoticandturbulentnatureofthecoalpowderselectionprocess,theefficiencyofthewind-sweepingtypecoalmillisoftensuboptimal,resultinginreducedoperationalstabilityandhigheremissions.Asaresult,thereisanurgentneedtodevelopmethodstorefurbishthewind-sweepingtypecoalmilldynamicselectionforbetterperformance. 3.ProposedSolution Toimprovetheefficiencyandstabilityofthewind-sweepingtypecoalmilldynamicselection,weproposethefollowingsolutions: 3.1.ImprovedDesignofWind-SweepingBelt Thecurrentdesignofthewind-sweepingbeltoftenleadstounevendistributionofthecoalpowder,resultinginpoorgrindingefficiency.Toaddressthisissue,weproposeanewdesignforthewind-sweepingbeltthatincludesaseriesofguideplatestoensureevendistributionofthecoalpowder.Theguideplateswillbeplacedatintervalsalongthelengthofthewind-sweepingbelt,effectivelycontrollingtheflowofthecoalpowderintothegrindingrollers. 3.2.AdvancedGrindingRollerTechnology Thecurrentgrindingrollertechnologyoftenresultsintheinefficientuseofenergyandinconsistentgrindingpatterns.Toaddressthisissue,weproposetheinstallationofadvancedgrindingrollertechnologysuchasthehigh-efficiencygrindingroller.Thistechnologywillenablethemoreefficientuseofenergyandconsistentgrindingpatterns,resultinginbettergrindingefficiencyandreducedemissions. 3.3.OptimizationofCoalPowderSelection Thecoalpowderusedinthewind-sweepingtypecoalmilloftenh