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大断面煤巷掘进工作面综掘机高压外喷雾降尘技术及装备的应用研究.docx

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大断面煤巷掘进工作面综掘机高压外喷雾降尘技术及装备的应用研究 大断面煤巷掘进工作面综掘机高压外喷雾降尘技术及装备的应用研究 Abstract：Inrecentyears,withtherapiddevelopmentofthecoalindustry,theissueofdustcontrolinlarge-sectioncoalroadwayexcavationhasbecomeincreasinglyprominent.Inthisstudy,theapplicationofhigh-pressureexternalspraydustreductiontechnologyandequipmentinlarge-sectioncoalroadwayexcavationwasinvestigated.Theexperimentalresultsshowthatthehigh-pressureexternalspraydustreductiontechnologyandequipmenteffectivelyreducethedustconcentrationintheworkplace,creatingabetterworkingenvironmentforworkers. 1.Introduction Dustisacommonproblemincoalmineexcavation,especiallyinlarge-sectioncoalroadwayexcavation.Thehighdustconcentrationnotonlyaffectsthevisibilityoftheworkingface,butalsocausesharmtoworkers'health.Therefore,itisnecessarytostudyeffectivedustreductiontechnologiesandequipmentforlarge-sectioncoalroadwayexcavation. 2.High-pressureexternalspraydustreductiontechnology High-pressureexternalspraydustreductiontechnologyisaneffectivemethodtocontroldustinlarge-sectioncoalroadwayexcavation.Theprincipleistousehigh-pressurewatermisttocaptureandagglomeratedustparticles,andthensettlethemdown.Thehigh-pressurewatermistcaneffectivelyreducethedustconcentrationintheworkplaceandimprovetheworkingenvironment. 3.High-pressureexternalspraydustreductionequipment Theapplicationofhigh-pressureexternalspraydustreductionequipmentisthekeytothesuccessofdustcontrolinlarge-sectioncoalroadwayexcavation.Theequipmentmainlyincludeshigh-pressurewaterpump,spraygun,watermistgenerator,watermistpipenetwork,andcontrolsystem.Thehigh-pressurewaterpumpprovidespowerforthewatermistgeneration,andthespraygunandwatermistpipenetworkdistributethewatermisttotheworkplace.Thecontrolsystemcontrolstheoperationoftheequipment. 4.Experimentalstudy Inordertoverifytheeffectivenessofhigh-pressureexternalspraydustreductiontechnologyandequipmentinlarge-sectioncoalroadwayexcavation,aseriesofexperimentswerecarriedout.Thedustconcentrationintheworkplacewasmeasuredbeforeandaftertheapplicationofh