计任务书毕业设计日期:毕业设计题目:2×25孔JN60-82型焦炉配套粗苯工段的工艺设计毕业设计专题题目:要求:(1)回收工艺论证;(2)主要设备计算和选型;(3)绘制带控制点工艺流程图、设备平面布置图、管道平面和立面布置图、绘制一张主要设备图(必须与自己的设备计算一致),用AutoCAD绘制;(4)编制设计说明书;(5)2×25孔JN60–82型焦炉配套规模进行计算计算条件:苯回收率:1.1%硫铵工段来煤气温度/饱和温度℃:58/53终冷温度:22℃毕业设计工作计划(1)3.1~3.8设计基本知识培训(2)3.9~3.22现场实习收集资料(3)3.23~4.17工艺论证和计算(5)4.18~5.31绘制图纸(6)6.1~6.15提交设计说明书和图纸目录一绪论.........................................................................................................................1二工艺论证及选择.......................................................................................................62.1煤气的终冷及洗萘工艺...........................................................................................62.1.1煤气终冷和机械化除萘工艺........................................................................72.1.2煤气终冷和焦油洗萘工艺............................................................................82.1.3油洗萘和煤气终冷工艺................................................................................92.1.4横管终冷喷洒轻质焦油洗萘工艺..............................................................102.2洗苯工艺................................................................................................................112.2.1焦油洗油吸收法..........................................................................................132.2.2石油洗油吸收法..........................................................................................142.3脱苯工艺................................................................................................................152.3.1蒸汽加热法生产一种苯.............................................................................152.3.2管式炉加热法生产一种苯的工艺..............................................................16三粗苯回收原理..........................................................................................................193.1粗苯回收原理及影响因素.....................................................................................193.1.1洗油回收粗苯的原理..................................................................................193.1.2影响粗苯吸收的因素..................................................................................193.2脱苯原理及影响因素.............................................................................................213.2.1脱苯原理(蒸汽法)..................................................................................213.2.2影响脱苯的因素..........................................................................................21四主要设备论证及选型............................................................................................224.1洗苯塔..................................................................................................................224.1.1空喷塔.........................................................................................................224.1.2板式塔(孔板塔)......................................................................................234.1.3填料塔........................................................