安全连续采矿的非爆破破岩技术 毕业论文外文翻译

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1、Non-explosiveRockBreakingTechnologiesforSafeandContinuousMiningK.K.KabongoKeywords：MiningConsultant，YonkeServices(Pty)Limited，31ImpalaRoadChislehurston，Sandton，Johannesburg，RSAABSTRACT：SeveralminesinSouthAfrica(SA),likeinmanyotherpartsoftheworld,usedrillandblastasmeansofrockbreaki

2、ngfororeextraction.Despitecosteffectivenesshighexplosiveminingdoesnotguaranteeoptimaltotalminingcosts.Itslowenergyefficienciesandthehazardousnatureofblasting,i.e.poorsafetyrecordsespeciallyindeepmines,createaneedforintensivereseachanddevelopmentintosaferandmoreproductivetechnologi

3、es.Surelymechanisedminingistheultimateoption.Manyattemptstouseheavymachinesinnarrowveindepositsatgreatdepthshavehoweverresultedindisappointment.Overthelastthreeyears,thequestfornonexplosivesbreakingtechnologieshasgainedmomentum.Theindustryisdesperatelylookingforafacesavingsystemto

4、uplifeproductivity,ensuresafeminingunderground,preventanddamaged-controltheimpactofthedevastatingHIV/AIDSonthefutureofmining.Propellantbasednon-explosiverockbreakingispositioningitselfsoastocapturetheopinionintheindustry.Itisconsideredamidwaybetweencheaperbutlife-threateningexplos

5、ivesandthecapitalintensiveanduncompromisingmechanisedmining.Manynon-explosiveproductsbeingtrailedintheindustry:Swartklip’sBoulder,Rocksplitter,Brandrill’sPenetrationConeFracture(PCF),NXCO’sNonexandAltex’sSafextonameafew.Allthesesystemshaveuniquemeritsandtheyallclaimdifferentlevels

6、ofsuccessinbreakingrockundervaryingconditions,howevertheyalllacktheHerculeanpower(Cunningham2002),“theoomph”,toproperlycleanouttherockburdensconsistentlytothesatisfactionoftheindustry.Fundamentallythesesystemsappeartolackincontainingtheblastgasenergiesintherocktomatureburden第16页fr

7、acturing.RockdustersandConmin101arethenewestproductstomakeanappearance.Theyclaimtohaveaddressedthisshortcomingwithcontept.Theystillhavetoproveinpracticaltrialswhatappearslikeanobviousedgeoverprecursors,thatcapacityofholdinggasesinblastholesforlongduration.Everthoughtheindustryexpe

8、ctationofcontinuousminingoperatio