中国矿业大学2011届本科生毕业设计第1页专业英文翻译中国矿业大学中国矿业大学2011届本科生毕业设计第2页毕业设计英语翻译姓名:学号:学院:应用技术学院专业:矿物加工工程翻译题目:选煤厂介耗分析指导教师:职称:讲师中国矿业大学2011届本科生毕业设计第3页英文原文AnanalysisofmediumlossesincoalwashingplantsAbstractAmajoroperatingcostindense-,beingcostly,-,theyalsoresultinmediumlossesduetochangesinthemediumsplitratio(ratioofthemediumflowrateinoverflowtounderflow).icseparatoreffluent,theeffectofthechangeinmediumsplitratioonthedrain-and-rinsescreensand,hence,'scoalwasheries,atJharkhandIndia,whichemploysprimaryandsecondarydense-mediumcyclonesinseriestoproducecleancoal,middlingsandrejects,reducingtherelativedensityoffeedmedium,,changingtheconeratio(ratiooftheoverflowdiametertotheunderflowdiameter)changedtherelativedensityandtheflowratesthroughthecycloneoutlets,,itelossesdecreased,resultinginasavingofapproximatelyUS$27,:dense-mediumcyclone;itelosses;drain-and-rinsescreens;-medium(iteinthecaseofcoal),aslurry/suspensionhavingarelativedensityintermediatetothatofvaluablemineralandgangue,,beingcostly,(1987)quotesfiguresof20–40%ofdense-–20%,anditisoftenpossibletodosowithminimalcapitalexpenditurethroughimprovedoperatingproceduresandminorchangestoplantc
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