毕业设计（论文）-董各庄3.0Mta炼焦煤选煤厂初步设计.docx

。通过对原煤筛分、浮沉资料的分析、综合,绘制了入选原煤的粒度特性分布曲线和各种选煤方案可选性曲线。由于原煤含矸量较低,+50mm灰分不高,煤质较脆,且可选性为中等可选,故选择将+50mm原煤破碎,破碎后-50mm粒级煤采用混合入选重介质选工艺流程;煤泥采用浮选工艺流程。经过洗选,%,%。设计中使该厂的煤泥水系统实现了洗水闭路循环,防止了废水污染。依据工艺流程图完成了工艺流程数质量计算,设备选型,厂房布置,经济概算,图纸绘制等工作。,在规定期内可以收回成本,并能够获得较高经济效益,可以投产运营。关键词:选煤厂;炼焦煤;旋流器重介;浮选;全套图纸加扣3012250582IAbstractThecontentofthisdesignisthepreliminarydesignoftheDongezhuang`,,+50mmashcontentisnothigh,coalqualityiscrisp,andasmediumofoptionalsexisoptional,sochooseto50mmrawcoalcrushing,aftercrushing-50mmgradedusingmixedheavymediumcoalselectionprocess;,%,%.Maketheplant'simplementationofthecoalslimewatersysteminthedesignofthewashingwaterclosed-circuitcirculation,,plantlayout,equipmentselection,economicbudget,drawing,,:coalpreparationplant;cokingcoal;heavy-mediacyclone;flotationII目录摘要.............................................................................................................................IAbstract.....................................................................................................................II前言.............................................................................................................................11厂区概况.................................................................................................................、行政及交通............................................................................................、行政及厂址选择.......................................................