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,usedrillan

2、dblastasmeansofrockbreakingfororeextraction.Despitecosteffectivenesshighexplosiveminingdoesnotguaranteeoptimaltotalminingcosts.Itslowenergyefficienciesandthehazardousnatureofblasting,i.e.poorsafetyrecordsespeciallyindeepmines,createaneedforintensivereseach

3、anddevelopmentintosaferandmoreproductivetechnologies.Surelymechanisedminingistheultimateoption.Manyattemptstouseheavymachinesinnarrowveindepositsatgreatdepthshavehoweverresultedindisappointment.Overthelastthreeyears,thequestfornonexplosivesbreakingtechnolo

4、gieshasgainedmomentum.Theindustryisdesperatelylookingforafacesavingsystemtouplifeproductivity,ensuresafeminingunderground,preventanddamaged-controltheimpactofthedevastatingHIV/AIDSonthefutureofmining.Propellantbasednon-explosiverockbreakingispositioningits

5、elfsoastocapturetheopinionintheindustry.Itisconsideredamidwaybetweencheaperbutlife-threateningexplosivesandthecapitalintensiveanduncompromisingmechanisedmining.Manynon-explosiveproductsbeingtrailedintheindustry:Swartklip’sBoulder,Rocksplitter,Brandrill’sPe

6、netrationConeFracture(PCF),NXCO’sNonexandAltex’sSafextonameafew.Allthesesystemshaveuniquemeritsandtheyallclaimdifferentlevelsofsuccessinbreakingrockundervaryingconditions,howevertheyalllacktheHerculeanpower(Cunningham2002),“theoomph”,toproperlycleanoutther

7、ockburdensconsistentlytothesatisfactionoftheindustry.Fundamentallythesesystemsappeartolackincontainingtheblastgasenergiesintherocktomatureburden第16页fracturing.RockdustersandConmin101arethenewestproductstomakeanappearance.Theyclaimtohaveaddressedthisshortco

8、mingwithcontept.Theystillhavetoproveinpracticaltrialswhatappearslikeanobviousedgeoverprecursors,thatcapacityofholdinggasesinblastholesforlongduration.Everthoughtheindustryexpectationofcontinuousminingoperatio