毕业论文-年产万吨液碱工艺初步设计—盐水工段工艺及前反应桶设计.doc

毕业设计(论文) 课 题 名 称 年产30万吨液碱工艺初步设计 ——盐水工段工艺及前反应桶设计 学 生 姓 名 学 号 系、年级专业 生物与化学工程系10级化学工程与工艺 指 导 教 师 职 称 副 教 授、讲 师 2014年 5 月 21 日 摘 要 本次毕业设计课题为年产30万吨液碱工艺初步设计——盐水工段工艺及前反应桶设计。本次设计工艺部分，主要完成了对盐水精制工艺方法进行比较和选择，并设计出适宜的工艺生产方法及流程。采用A2图纸绘制带控制点工艺流程图。列出盐水工段工艺控制指标作为衡算的基准，对盐水工段工艺绘制衡算示意图，进行物料衡算和热量衡算，最终列出衡算表。本次设计对关键设备前反应桶进行详细的工艺及设备设计；列出盐水工段主要设备表，采用A2图纸绘制前反应桶设备装配图。编制设计计算说明书。 本次设计的关键设备前反应桶因其无需夹套人孔等装置，故采用非标反应釜，长径比取为2。本设计在槽壁上设置了四块指型挡板，以避免出现盐水打旋现象。前反应桶的封头采用45度折边锥形，本设计已列出了封头的详细的计算参数。本设计中前反应桶的搅拌机选择单层二折叶桨式搅拌机：折叶角度为45度，相较于平直式搅拌机来说功耗更少操作费用更低。 关键词：液碱；盐水精制；物料衡算；热量衡算；前反应桶 The Design of Annual Production Capacity of 30,0000 Tons of liquid caustic soda梩he Design of saline process and the before reaction barrels Summary The graduation design topic for the design of annual production capacity of 300000 tons of liquid caustic soda ?the design of saline process and the before reaction barrels. The design of the main completed the review and selection of the production method of industrial design process for the production of liquid caustic soda, appropriate methods and processes, using drawings A2 drawings drawing the process flow chart with control points. The absorption section for material balance and heat balance, balance sheet lists, list control index of saline process. The key equipment of the before reaction barrels for process and equipment of the before reaction barrels for process and equipment design detailed list of main equipment table saline. This design has used A2 drawing the before reaction barrels equipment assembly drawings and Formulated the design specification. The design of key equipment--the before reaction barrel, because its has not jacket and manhole and so on, is non-standard reaction kettle, which is adopted to that the height to diameter is 2. This design has set