毕业设计（论文）-董各庄5.0Mta炼焦煤选煤厂初步设计.doc

文档介绍：。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。精煤灰分为12%时,块煤部分为较难选,末煤部分为中等可选,进而根据技术经济比较确定了13mm以上采用立轮主再选、13~0mm采用无压给料三产品重介旋流器分选、煤泥浮选的分级入选工艺流程。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。设计中还完成了工艺流程计算、设备选型、厂区及厂房布置、劳动定员编制、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:初步设计;选煤厂;炼焦煤;立轮重介;旋流器重介;浮选全套图纸加扣3012250582AbstractThecontentofthegraduationdesignisthepreliminarydesignoftheDongezhuang`,%,thewashabilityforlumpcoalisdifficultywhilefortheslackcoalismedium,parationofthetechnicalandeconomydeterminedtheflowsheetwhichisabovethe13mmpart,therefuseiseliminatedandcleanedcoalrewashedbyheavy-mediabath,the13~0mmpartwashedbyheavy-mediacyclones,,%,%.Maketheplant'simplementationofthecoalslimewatersysteminthedesignofthewashingwaterclosed-circuitcirculation,,pletedtheworkoftheCalculationprocess,equipmentselection,plantlayout,determinationthenumberofemployees,economicestimates,,:preliminarydesign;coalpreparationplant;cokingcoal;roundupheavymediaseparation;heavy-mediacyclone;flotation目录前言 、行政及交通 445.