2.40Mt/a西山选煤厂初步设计（精煤灰分Ad≤10.50%）华北科技学院毕业设计（论文）2.40Mt/a西山选煤厂初步设计（精煤灰分Ad≤10.50%）摘要：本次设计为2.40Mt/a的大型矿井型选煤厂。入洗的原煤为柳林矿开采的5#矿、8#矿两种原煤，按固定比例（A矿K1=30%，B矿K2=70%）混合入选，原煤的灰分为30.62%，属于稍难选煤。设计任务要求精煤产品灰分小于10.50%。精煤产品作为炼焦煤，中煤与煤泥混合外销，矸石外运。根据原煤的性质及精煤质量要求等,在进行选煤方案比较的基础上，确定出最佳的工艺流程和产品结构。即该厂为重介质选煤厂。经过工艺流程计算、设备选型等，对主厂房和总平面进行布置。同时做出了该厂的经济技术分析。主厂房为混凝土构筑，厂房宽敞，采光率高。总平面布置充分考虑地形因素因地制宜，绿化面积高，有效隔音除尘。为现代化高效选煤厂。关键词:工艺流程；重介质分选；技术经济；选煤厂设计THEPRELIMINARYDESIGNOF2.40Mt/aCOALPREPARATIONPLANTOFXISHANTOWN(THEASHCUNTENTOFTHEWASHEDCOALBELESSTHAN10.50%)Abstract:Thedesignisforthelarge-scaleshaftmodecoalpreparationplantof2.40Mt/a.TherawcoaltobewashedaretheArawcoalandtheBrawcoalofXISHANtownwhicharemixedinthefixedproportionof30:70.Theashcontentoftherawcoalis30.62%,whichmakesthecoalalittledifficulttowash.Thetaskofthedesignistomaketheashcontentofthewashedcoalbelessthan10.50%.Andthewashedcoalwillactascokingcoal,middlingsandsludgewillbesoldmixedly,andtherejectwillbecarriedaway.Accordingtothenatureofrawcoalandthequalityrequestofcleancoal,onthebasisofthecomparisonofcoalpreparationplan,Itconfirmstheoptimaltechnologicalprocessandthestructureofproducts.That’stosay,itisthedensemediumseparationplant.Bythecalculationofprocessionandtheequipmentsselection.Itarrangesthemainworkshopandthetotalflat,thenanalysisontechnologyandeconomy.Theworkshopforconcretebuilding,buildingcapacious,daylightingrateishigh.Generallayoutfullyconsiderterrainfactorsadjustmeasurestolocalconditions,higheffectivesoundinsulation,greeningareaofdust.ThisisaHYPERLINK"app:ds:modernization"\t"_self"modernizationcoalpreparationplant.Keywords:technological；process；densemediumseparation；theanalysisontechnologyandeconomy；thecoalpreparationplantdesign目录TOC\o"1-2"\h\uHYPERLINK\l_Toc32467第一章绪论PAGEREF_Toc324671HYPERLINK\l_Toc62281.1设计目的PAGEREF_Toc62281HYPERLINK\l_Toc55711.2选煤厂概况PAGEREF_Toc55711HYPERLINK\l_Toc12628第2章煤质资料的综合PAGEREF_Toc126283HYPERLINK\l_Toc35752.1筛分资料综合和校正PAGEREF_Toc357