1、 分类号 密级 U D C U D C 毕业设计(论文) 小型便携式皮带输送机设计小型便携式皮带输送机设计 姓 名: 专 业:机械设计制造及自动化 论文外文题目: Atmospheric pressure without clip set of stainless steel stirred tank design 论文主题词: 搅拌釜的总体结构设计与分析 外文主题词: Stirred tank general structure design 论文答辩日期:2012. . 答辩委员会主席: 评阅教师: I 原创性声明原创性声明 本人呈交的学位论文,是在导师的指导下,独立进行研究工作所取得的成
2、果, 所有数据、图片资料真实可靠。尽我所知,除文中已经注明引用的内容外,本学 位论文的研究成果不包含他人享有著作权的内容。 对本论文所涉及的研究工作做 出贡献的其他个人和集体,均已在文中以明确的方式标明。本学位论文的知识产 权归属于培养单位。 本人签名: 日期: II 摘摘 要要 本设计主要通过 YSRG160 型反应釜做为基础, 设计出能满足植物油的碱炼的 搅拌装置。碱炼的原理是碱溶液与毛油中的游离脂肪酸发生中和反应。反应式如 下:RCOOHNaOHROONaH2O 。 设计搅拌装置的目的则是在碱炼时让碱滴分散得细,碱液的总表面积变大, 从而增加了碱液与游离脂肪酸的接触机会,加快了反应速度,
3、缩短了碱炼过程, 有利于精炼率的提高,并且增进碱液与游离脂肪酸的相对运动,提高反应的速率 ,并使反应生成的皂膜尽快地脱离碱滴。所以碱炼的反应过程对搅拌速率与程度 有相当高的要求,此次设计就是通过这些要求对搅拌装置进行设计与选型。 关键词:关键词:搅拌设备 化工机械 化学反应器 生物反应器 可靠性 III ABSTRACT This design mainly through the YSRG160 type the reaction kettle as the foundation, the design of the vegetable oil can meet the alkali ref
4、ining mixing device. The principle of alkali refining alkali solution and hair oil is the free fatty acid neutralization reaction happened. Reactive as follows: RCOOH + NaOH-ROONa + H2O besides the neutralization reaction, and some physical chemistry. The purpose of the design device is in alkali re
5、fining alkali drops to let scattered fine, the total surface area is big, thus increasing the lye contact with free fatty acid, speeding up the reaction speed, shorten the alkali refining process, be helpful for the improvement of refining yield and improve the lye and free fatty acid relative motio
6、n, improve the reaction rate, and the reaction of the generation of soap film from alkali drops as soon as possible. So alkali refining reaction process on the stirring speed and extent has quite high demand, the design is through these requirements for mixing device in the design and selection. Key word: Mixing equipment Chemical machinery Chemical reactors Biological reactor Reliability I