《年产7万吨焦油加工厂蒸馏工段的初步设计》-毕业论文.doc

河北联合大学轻工学院 QINGGONG COLLEGE, HEBEI UNITED UNIVERSITY 毕业设计说明书 设计题目：7万t/a焦油加工厂蒸馏工段的初步设计 学生姓名： 学 号： 专业班级： 学 部： 指导教师： 2012年5月23日 摘 要 综述了国内外焦油加工工艺和发展现状，选用了国内应用较多且比较成熟的常压两塔式焦油蒸馏工艺。 本设计为7万t/a焦油加工厂蒸馏工段的初步设计。首先对一段蒸发器、二段蒸发器、蒽塔、馏分塔等主要设备进行了物料衡算；对馏分塔、蒽塔进行了设计计算，确定了塔径和塔高，并对塔器进行了设计计算和流体力学校核；对馏分塔进行了机械设计和强度校核；最后列出了非工艺条件。 本设计的主要设备有：350万kcal/h的圆筒式管式炉，直径DN=1000mm的一段蒸发器、直径DN=1800mm的二段蒸发器、直径DN=1400mm，塔高H=21000mm，塔板数为37的馏分塔和直径DN=1400mm，塔高H=13000mm，塔板数为23的蒽塔，还有换热面积为24m2的一段冷凝冷却器，换热面积为37m2的馏分塔冷凝冷却器，换热面积为12m2的蒽油浸没式冷却器。 关键词：煤焦油；焦油蒸馏；馏分塔 Abstract A brief introduction of the coal tar and the development of process technology trends were reviewed. Two atmospheric distillation process were chosen. The design involve the preliminary design of the 70 000 t / a tar processing plant distillation .First ,keep the equipment of first evaporator, second evaporator, anthracene tower and distillate tower material balance; secondly design distillate tower and anthracene tower calculations to determine diameter and heigh and plate design calculations and the hydrodynamics check of the tower ;distillate tower mechanical design and strength check ;finally, list the non-process condition. Cylindrical tube furnace of 3.5 million kcal/h ,the first evaporator which diameter is 1000mm and the second evaporator which diameter is 1800mm are the major heating equipment in the design .In addition ,distillation tower of which diameter is 1400mm ,height is 21000mm and plate number is 37 and anthracene tower of which diameter is 1400mm ,height is 13000mm and plate number is 23 are the major distillation equipment of the design .Furthermore ,the area of heat transfer of the major condensate equipment above first condensate cooler ,distillation tower and anthracene tower are 24m2 ,37 m2 and 12m2 . Keywords: coal tar; tar distillation; distillation tower TOC \o 1-3 \h \z \u HYPERLINK \l _Toc325646764 摘 要 PAGEREF _Toc325646764 \h I HYPERLINK \l _Toc325646765 Abstract PAGEREF _Toc325646765