干式厌氧发酵反应器设计研究  

Design Study on Reactor of Dry Anaerobic Fermentation

作　　者：姚鹏 郑晓宇 武京伟 童胜宝 汪昱昌 邹婷 肖诚斌 赵彬 YAO Peng;ZHENG Xiaoyu;WU Jingwei;TONG Shengbao;WANG Yuchang;ZOU Ting;XIAO Chengbin;ZHAO Bin(Everbright Environmental Protection Technological Development(Nanjing)Limited,Nanjing 211106,China)

机构地区：[1]光大环保技术研究院(南京)有限公司,江苏南京211106

出　　处：《中国沼气》2023年第2期76-82,共7页China Biogas

基　　金：国家重点研发计划项目(2018YFD1100603)。

摘　　要：从干式厌氧发酵的温度和搅拌方式、筒体加热方式和强度校核、搅拌轴的机械强度校核等方面全面阐述了反应器的设计过程。中温机械搅拌是干式厌氧发酵的优选方式,短管支撑式蜂窝夹套不仅可以保持温度相对恒定,而且还可以增加筒体强度,很好地满足工艺和设计要求。同时,夹套设计中拉撑的设计需要从拉撑间距和单根拉撑所需截面面积两方面进行强度校核。搅拌轴的设计应首先考虑搅拌功率,然后从搅拌轴的屈服强度、挠度、疲劳强度和刚度几个方面来对搅拌轴机械强度进行校核。该反应器的设计,为干式厌氧发酵技术应用提供支持。The design of the reactor,which is the key equipment of dry anaerobic fermentation,was investigated in this study.The design process including temperature,stirring method of dry anaerobic fermentation,heating method and strength checking of the cylinder,and the mechanical strength checking of the stirring shaft.It was concluded that medium-temperature mechanical agitation was the preferred method for dry anaerobic fermentation.And the short-tube-supported honeycomb jacket could keep temperature relatively constant,as well as increasing the strength of the shell,which could meet the requirements of the process and design.At the same time,the design of the bracing in the jacket design needto be checked for strength from the spacing of the bracing and the cross-sectional area required by a single bracing.The design of the stirring shaft need consider stirring power first,and check the mechanical strength of the stirring shaft from the yield strength,deflection,fatigue strength and stiffness of the stirring shaft.This paper could well guide the design of the reactor,which could provide support for the application of dry anaerobic fermentation technology.

关 键 词：干式厌氧 反应器 加热方式 搅拌轴 

分 类 号：S216.4[农业科学—农业机械化工程]