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《王莊礦選煤廠高壓微霧除塵系統(tǒng)設(shè)計(jì)》由會(huì)員上傳分享，免費(fèi)在線閱讀，更多相關(guān)內(nèi)容在學(xué)術(shù)論文-天天文庫。
1、摘要本論文主要針對(duì)潞安集團(tuán)王莊礦選煤廠的主要塵源點(diǎn)—機(jī)尾落料管及機(jī)尾處進(jìn)行研究，結(jié)合氣固兩相流理論，利用多物理場(chǎng)耦合分析軟件，分析出機(jī)尾落料管處及機(jī)尾粉塵逸散機(jī)理。經(jīng)現(xiàn)場(chǎng)調(diào)研發(fā)現(xiàn)，機(jī)尾落料管處的粉塵污染主要由落料管上方轉(zhuǎn)載皮帶落煤時(shí)，在落料管內(nèi)產(chǎn)生高壓誘導(dǎo)風(fēng)流，管內(nèi)粉塵沿導(dǎo)料槽兩端逸散造成的。機(jī)尾粉塵污染源于機(jī)尾甩塵。針對(duì)這類問題，提出高壓微霧除塵技術(shù)。在誘導(dǎo)風(fēng)流機(jī)制下構(gòu)建多相流數(shù)學(xué)模型，通過采用歐拉和拉格朗日數(shù)值模擬方法，研究粉塵逸散、微霧擴(kuò)散和噴霧后粉塵逸散機(jī)理。33數(shù)值模擬結(jié)果和現(xiàn)場(chǎng)實(shí)際吻合，粉塵濃度由原來的80mg/m，降為現(xiàn)在的3.
2、2mg/m，除塵方案取得了較好的效果。上述研究及成果可為熱電廠、采石場(chǎng)和化工廠等相關(guān)行業(yè)的粉塵防治提供參考與借鑒。關(guān)鍵詞：粉塵；機(jī)尾；落料管；逸散機(jī)理；兩相流；數(shù)值模擬IAbstractThispaperismainlyforstudyingthetailblankingtubeandtailwhicharethemajordustsourcesinCoalPreparationofWangzhuangMineinLu'anGroup,combinedwiththegas-solidflowtheory,usingcoupledmulti-p
3、hysicsanalysissoftwaretoanalyzedustdissipationmechanism.Dustpollutionofthetailblankingtubemainlyduestothatwhentranspersitebeltcoalblanksfromthetopofblankingtubehighpressureinducedairflowwasgeneratedinblankingtubeanddustdissipatesalongatbothendsoftheguidetubewasfoundthrought
4、hefieldinvestigation.Dustpollutionoftailduestotaildustrejection.Forsuchproblems,high-pressurefogdustremovaltechnologyispresented.Intheinductionofmerrymechanismbuildingmultiphaseflowmathematicalmodel,throughtheuseofEulerianandLagrangiannumericalsimulationmethodtostudyontheme
5、chanismofdustdissipationandthemicro-mistdispersionanddustdissipationaftermicro-mistspray.Thenumericalsimulationresultsmatchactualfield,anddust33concentrationreducesfrom80mg/mto3.2mg/m.Thedustremovalprogramachievesgoodresults.Thestudyandachievementsprovideareferenceforthedus
6、tcontrolofthermalpowerplant,quarryplant,chemicalplantandotherrelatedindustries.KeyWords：dust；tail；blankingtube；dissipationmechanism；two-phasefluid；numericalsimulationII目錄摘要......................................................................................................
7、....IAbstract..........................................................................................................II1緒論...........................................................................................................11.1粉塵危害...................................
8、.......................................................11.2課題研究背景.................
