浅析煤自燃火灾的原因、预报技术及防治措施-毕业论文外文翻译

浅析煤自燃火灾的原因、预报技术及防治措施-毕业论文外文翻译

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1、附录:外文资料与中文翻译外文资料:Analysisofthespontaneouscombustionofcoalcauseofthefire,forecastingtechniquesandpreventionmeasures1IntroductionMinefireisthemajornaturaldisastersincoalmines.SpontaneouscombustionofcoalisthemainformoftheminefireinChina'sstate-ownedkeycoalmines,morethan56percentofth

2、eminethereisthedangerofspontaneouscombustion,firescausedbyspontaneouscombustionofcoalaccountedformorethan90%ofthetotalnumberofminefires[1].Inrecentyears,mechanizedminingthetopcoalcavingtechnologyhasbeenvigorouslypromotionandapplicationofasubstantialincreaseincoalproductionefficie

3、ncy,butthecavingheightandlarge,leftoverfromthegoafresidualcoal,seriousairleakage,makingthemineofcoalspontaneouscombustiontooccurfrequently,hasbecomeoneofthemainfactorsrestrictingtheminesafetyinproductionandfurtherdevelopment[2].DistrictofXinjiang,Ningxia,InnerMongolia,thereisstil

4、lalargeareaofthecoalfieldfires,burningcoalamount1000-1360tonsperyear,theeconomiclossesofmorethan20billionyuan[3-4].Spontaneouscombustionofcoalproducesalarge33numberofSO2,H2S,COandCO2gas,theseriouspollutionoftheenvironment;coalfieldfiresalsocausedalargeareaofdamagetovegetation,soi

5、ldesertification.2SpontaneouscombustionofcoalcauseanalysisCoallargelybytheorganicandinorganiccomponents,themaincombustibleelementscarbon(about65%~95%),followedbyhydrogen(about1%to2%),andcontainingasmallamountofoxygen(about3%to5%,sometimesupto25%),sulfur(about10%),theaboveelements

6、togetherconstitutethecombustiblecompounds,knownasthecombustiblematterofcoal.Inaddition,coalalsocontainssomenon-combustiblemineralash(5%to15%,alsoupto50%)andwater(generallybetween2%to20%change),thesesubstancesiscalledainertingofcoalnature.Coalbytheoxygenintheairoxidationistherootc

7、auseofthespontaneouscombustionofcoal.Carbon,hydrogenandotherelementsinthecoaloccursatroomtemperature,thereactionofthecombustibleCO,CH4,andotheralkanessubstances.Oxidationofcoalisanexothermicreaction,iftheheatcannotbedissipated,willenablethecoalaccumulationoftemperature,inturn,acc

8、eleratetheoxidationofcoalandemitmoreofth

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