搜索
安徽理工大学毕业设计I淮北矿业集团芦岭1.5Mt/a选煤厂方案设计及主厂房工艺布置摘要中国是一个煤炭生产大国，中国的煤炭企业越来越重视选煤行业的发展，以提高煤炭产品质量。因此，先进的设计有着重要作用。本设计是芦岭选煤厂的主厂房，这篇论文首先介绍芦岭矿厂区位置、地理概况和原料煤基地。本设计采用重介选煤工艺，其主要设备是无压给料三产品重介质旋流器。然后阐明了芦岭矿选煤厂的选煤方法的特点以及制定该工艺的依据。并且介绍了选煤厂的服务年限和车间的工作制度，编制计算和选型。最后，从数量检查、质量检查和采制化设施三个方面论述了该厂生产技术检查。设计符合设计要求，能够较好地完成设计任务。关键词：三产品重介旋流器，选煤厂，工艺效果安徽理工大学毕业设计IITHEDESIGNANDLAYOUTOFTHEMAINPLANTPROCESSOFTHE1.5Mt/aLULINGCOALPREPARATIONPLANTOFHUAIBEIMININGGROUPABSTRACTChinaisalargecoalproductioncountry.Thecoalenterprisesinchinapayattentiontodevelopthecoalpreparationindustrymoreandmoreinordertoimprovecoalproductquality.So,theadvanceddesignplaysanimportantrole.ThedesignistheLulingcoalpreparationplant,thefirstpartofthisthesisintroducesthepositionofplantareaandgeneralgeographysituationandthebaseofrawcoalofLulingMine.ThedesignadopttheheavymediumPreparationtechnique,anditsmainequipmentsarethree-productdensemediumcyclonebyunpressurizedfeeding.Thenintroducesthecoalpreparationmethodsandthepreparationtechniqueandwhypreparationtechniqueisadopted.ThenintroducesthelimitServicetimeandtheworksystemofcoalpreparationindustry,computethepreparationtechniqueandchoosethetype.Inthelastpart,Idiscussthearrangementofcraftsandthequantitycheckandthefacilitiesadopted,bywhichthetechniqueofLulingcoalpreparationplantcanbechecked.Thedesignfitstherequirement,andcancompletethedesign.KEYWORDS:three-productdensemediumcyclone,coalpreparationplant,processeffect安徽理工大学毕业设计i目录摘要................................................................................................................................IABSTRACT..................................................................................................................II1绪论............................................................................................................................12厂区概况....................................................................................................................22.1厂区位置..............................................................................................................22.2地理概况..............................................................................................................22.3气象、地震..........................................................................................................23原料煤基地................................................................................................................33.1厂区地质特征.....................................................................................................33.2煤层及生产矿井埋藏量、生产能力和服务年限.............................................34煤质特征及其可选性................................................................................................44.1煤质特征及其可选性.........................................................................................44.2煤质资料分析......................................................................................................44.2.1原煤筛分试验................................................................................................44.2.2原煤浮沉试验................................................................................................55选煤方法限度及工艺流程说明................................................................................85.1选煤方法与限度.................................................................................................85.2工艺流程制定依据.............................................................................................85.2.1选择无压给料三产品重介旋流器的依据....................................................85.2.2采用直接浮选的依据...................................................................................95.3工艺流程的说明...............................................................................................105.3.1分选、脱介、脱水作业.............................................................................105.3.2介质回收.....................................................................................................105.3.3粗煤泥回收.................................................................................................105.3.4煤泥水处理.................................................................................................116原煤设计能力、工作制度及服务年限...................................................................136.1选煤厂及车间的工作制度...............................................................................13安徽理工大学毕业设计ii6.2选煤厂的服务年限及原煤处理能力................................................................136.2.1服务年限.....................................................................................................136.2.2厂型.............................................................................................................136.2.3处理能力.....................................................................................................137选煤厂工艺流程的计算..........................................................................................147.1选煤数、质量的计算........................................................................................147.1.1分选作业的计算..............................................