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I摘要本文通过对国内外离心过滤技术研究现状的分析和亲身的现场时间工作经验总结，指出了离心脱水技术的重要性，和未来在该领域内需要开展的理论研究方向。文中描述了离心力场的基本特征，提出了提高分离因数的基本途径，对TLL—1030型离心机的结构、零部件和工作原理进行了细致的分析研究，并针对现场使用过程中出现的问题进行了原因分析。本论文在对筛篮和螺旋刮刀进行研究的基础上，对筛篮和螺旋刮刀进行改进设计，并对分配盘角度进行了改进。把螺旋刮刀的升角减小到20°，并在其上增加加大导流叶片更利于煤的疏导，提高了处理效率。对传动系统中差速器部分改进使其结构更加简单效率更高。离心脱水机在工作时，如果进料量太大，或者进料浓度突然增加等原因造成沉渣量加大，导致离心机螺旋的推料扭矩和主机电流增加，若没有过载保护措施，就会导致差速器损坏。因此离心机必须有过载保护措施，以确保离心机可靠安全运行。本机过载保护方式同时采用过电流保护和液力偶合器保护的方案。润滑系统采用电机驱动稀油集中润滑，润滑油从油箱经滤油器进入齿轮油泵，然后经主压油管进入多支油管，再经四个支油管进入各润滑点。关键词：螺旋刮刀；分离因数；差速器；液力偶合器；过电流；稀油润滑IIABSTRACTThisarticlethroughsummarizedtothedomesticandforeignCentrifugalFilterengineeringresearchpresentsituationanalysisandtheoneselfscenetimeworkexperience,hadpointedoutthecentrifugaldehydrationtechnologyimportance,withthefuturethefundamentalresearchdirectionwhichwillneedtodevelopinthisgentrifugalismdomain.Askeddescribedthecentrifugalforcefieldbasiccharacteristic,proposedtheenhancementseparationfactoressentialway.TotheXLL-1,100centrifugesstructures,thesparepartandtheprincipleofworkhasssappearedtocarryonthereasonanalysis.Thepresentpaperintosievesthebasketandthespiralshavingknifeconductstheresearchinthefoundation,tosievesthconductedthecarefulanalysisresearch,andaimedatthequestionwhichinthefielduseproceebasketandthespiralshavingknifecarriesontheimprovementdesign,andhasmadetheimprovementtothedistributordiskangle.Anglereducesthespiralshavingknife20°,thedistributordiskanglebyoriginal90°changes150°,andincreasesinaboveenlargesthestatorvanefavorthecoalunblocking,enhancedtheprocessingefficiency.DifferentialpartofthedrivesysteminamoresimplestructuretoimproveitsefficiencyCentrifugaldehydrationmachineatwork,iftoomuchintothefeed,orfeedconcentrationcausedasuddenincreaseinsedimentvolumeincreased,resultinginthepushercentrifugescrewtorqueandincreasethecurrenthost,ifthereisnooverloadprotectionmeasureswillbeleadtodifferentialdamage.Centrifugesmustthereforeoverloadprotectiontoensurereliableandsafeoperationofcentrifuges.Overloadprotectionofthemachineatthesametimetheuseofover-currentprotectionandtheprotectionofhydrauliccouplingoftheIIIprogram.Lubricationsystemusesamotor-drivenfocusonlightoillubrication,oilfromthetankintothegearpumpbytheoilfilter,andthenthroughthemainpipelineintothemulti-pressuretubing,andthenenterthepipelinebythefoursupportpointsofthelubrication.Keyword:Spiralshavingknife;Separationfactor;DifferentialHydrauliccoupling;over-current；DiluteoillubricationIV目录1绪论................................................................................................11.1引言...........................................................................................................11.2选煤的工艺过程.......................................................................................11.3选煤产品的脱水......................................................................................22TLL-1030型离心脱水机总体设计..............................................42.1设计选用机型及工作原理.......................................................................42.2离心机整体方案的确定及结构特点.......................................................42.2.1工作部分...........................................................................................52.2.2传动部分...........................................................................................62.2.3过载保护….....................................................................................62.2.4润滑系统..........................................................................................62.3主要技术特征..........................................................................................63工作部分的设计…........................................................................83.1分离因数Fr的确定...............................................................................83.2筛篮转速确定........................................................................................83.3筛篮的结构设计...................................................................................83.3.1筛篮大端直径D..........................................................................93.3.2筛篮的长度H..............................................................................93.3.3筛篮半锥角α的确定…..............................................................103.3.4筛网选型及其特征对脱水效果的影响......................................123.3.5筛网缝隙宽度的选择..................................................................13V3.3.6筛网缝隙排列对分离效果的影响..............................................143.3.7筛篮主要参数如下......................................................................143.3.8筛篮的制造..................................................................................143.3.9筛篮的平衡实验..........................................................................163.4螺旋转子结构设计...............................................................................163.4.1螺旋转子结构..............................................................................163.4.2螺旋转子的升角的确定..............................................................173.4.3提高刮刀耐磨性措施..................................................................183.4.4筛篮与刮刀转子间间隙的确定.............