目 录 目 录..................................................................... 1 摘 要..................................................................... 3 Abstract.................................................................. 4 第一章 前言............................................................... 5 1 引言 ................................................................ 5 2餐厨垃圾处理处置现状................................................. 5 2.1 粉碎直排...................................................... 5 2.2 肥料化处理..................................................... 6 2.3 饲料化处理..................................................... 7 2.4 生物发酵制氢技术............................................... 7 2.5 厌氧发酵技术................................................... 9 3 厨余垃圾厌氧发酵技术详探 ........................................... 10 第二章：工艺计算......................................................... 13 2.1初始设计参数...................................................... 13 2.2 设计计算参数 ..................................................... 13 2.3反应器的传热计算.................................................. 14 2.4确定夹套里水的质量流量............................................ 16 第三章 发酵罐的结构设计.................................................. 17 3.1 发酵罐尺寸的初选 ................................................. 17 3.2 发酵罐搅拌器的选型 ............................................... 18 3.3 发酵罐传热元件的设计 ............................................. 19 3.3.1 传热元件的选取.............................................. 19 3.3.2 夹套的尺寸及连接型式........................................ 20 3.4 发酵罐的具体尺寸的设计计算 ....................................... 21 3.4.1 发酵罐筒体厚度设计计算...................................... 21 3.4.2 封头厚度计算................................................ 23 3.4.3夹套的壁厚计算 .............................................. 25 3.5 发酵罐搅拌功率计算及电机的选型 ................................... 25 3.5.1搅拌功率计算 ................................................ 25 3.5.2 电机的选型.................................................. 26 3.6 传动装置及选型 ................................................... 27 3.6.1减速器的选取 ................................................ 27 3.6.2 联轴器的选择................................................ 27 3.6.3 搅拌轴的设计................................................ 28 3.6.3.1 搅拌轴强度预算............................................ 28 3.6.3.2 按扭矩和弯矩合成计算轴强度................................ 29 3.6.3.3 搅拌轴临界转速的校核...................................... 33 3.6.4 凸缘法兰的选型.............................................. 35 3.6.5 安装底盖的选型.............................................. 36 3.6.6螺栓强度的校核 .............................................. 37 3.7 水压试验 ......................................................... 38 3.8接管及管法兰的设计................................................ 39 第四章 发酵罐的附件的选取................................................ 41 4.1 视镜的选取 ....................................................... 41 4.2 温度计测量元件 ................................................... 42 4.3 挡板的选型 ....................................................... 42 4.4 支座的选型 ....................................................... 44 4.5 转轴的密封 ....................................................... 45 4.6焊接结构设计...................................................... 47 结论..................................................................... 49 致谢..................................................................... 50 参考文献................................................................. 51 附录..................................................................... 53 50L通用式厌氧发酵罐的设计 摘 要 本设计介绍了餐厨垃圾的成分、特点，综述了目前处理厨余垃圾的基本方法：饲料化技术、堆肥化处理技术、生物厌氧发酵技术。确定了厨余垃圾的厌氧发酵工艺，先对收集来的厨余垃圾进行预处理：除杂、含水量的调节、PH的调节等，用泵打入发酵罐进行厌氧发酵。本设计着重于厌氧发酵罐的设计，对发酵罐罐体的尺寸，发酵工艺，搅拌功率，搅拌桨，搅拌轴等进行了设计计算和应力校核。对于一些相对复杂的设计过程全部运用了MATLAB进行编程计算。 关键词：厨余垃圾；处理技术；厌氧发酵；厌氧发酵罐；

搅拌轴设计；MATLAB编程计算 50L Universal Design of anaerobic fermentation tank

Abstract This design introduces food waste composition, characteristics, review the current basic kitchen waste treatment method: Feed technology, composting, biological anaerobic fermentation. Kitchen waste to determine the anaerobic fermentation process, the first of collected kitchen waste pretreatment: purification, water regulation, PH adjustment, etc., into the fermentation tank with a pump for anaerobic fermentation. The design focuses on the design of anaerobic fermentation, the fermentation jars of body size, fermentation technology, mixing power, impeller, shaft, etc. Check the design. For some relatively complex design of all calculated using the MATLAB programming. Key words：food waste; processing technology; anaerobic fermentation; anaerobic fermentation; shaft design; MATLAB programming calculation