罐式厌氧发酵工艺及设备设计(完整一套设计,有说明书:论文,图纸)
06毕业设计要求.doc
毕业设计任务书.doc
出水槽.dwg
高效厌氧发酵系统1.dwg
罐式厌氧发酵工艺及发酵罐设计.doc
水封箱.dwg
水封箱.零件图.dwg
厌氧发酵罐零件图.dwg
摘要.doc
目录 1 前言…………………………………………………………………………………… 1 1.1 研究背景…………………………………………………………………………… 1 1.2 国内外发展概况…………………………………………………………………… 2 1.2.1 国外发展概况………………………………………………………………… 2 1.2.2 国内发展概况………………………………………………………………… 3 1.3研究目的和意义…………………………………………………………………… 4 2 沼气发酵的基本原理………………………………………………………………… 5 2.1沼气发酵原理……………………………………………………………………… 5 2.2沼气发酵工艺条件………………………………………………………………… 6 3 反应器的设计………………………………………………………………………… 8 3.1反应器的总体设计………………………………………………………………… 8 3.2反应器外壁材料的选择…………………………………………………………… 9 3.3反应器保温层的设计计算………………………………………………………… 10 3.4升流式厌氧污泥床(UASB)的概括……………………………………………… 12 4 能量计算……………………………………………………………………………… 13 4.1反应器保温材料的选择…………………………………………………………… 13 4.2反应器的散热……………………………………………………………………… 13 4.3料液的能量供给…………………………………………………………………… 15 5 结论…………………………………………………………………………………… 18 参考文献…………………………………………………………………………………… 19 致谢………………………………………………………………………………………… 20
摘要 沼气是一种清洁,可再生的能源。沼气用作能源,可处理有机废物以保护环境,经沼气发酵后的沼渣、沼液又是优质的有机肥料。所以沼气发
酵是综合利用有机废物,保护生态环境,促进农业生产可持续发展的重要措施之一。沼气燃烧后生成的CO2,又可被植物吸收,通过光合作用再
生成有机物,因而沼气又是一种可再生能源。厌氧发酵工艺是处理有机废弃物最有效的手段。沼气的取材在农村是非常方便,在农村沼气可以
改善农村环境,提供有机肥料又能解决燃料问题等等。所以本研究课题有着广阔的发展前景,是21世纪能源发展的重要方向。 本论文研究的是一种高效的厌氧发酵罐装置,该装置具有微生物容易富集,一级罐内设有支架载体,从二级罐回流厌氧活性污泥,提高了发酵
罐内微生物密度,从而提高了厌氧发酵速率和有机物转化率,本反应器适合于厌氧发酵的工业化生产,能够推动生物质能源利用的进一步发展。 本文介绍了厌氧发酵工艺,查资料根据保温材料的性质选择膨胀珍珠岩作为发酵罐的保温层,并计算了膨胀珍珠岩的厚度和它的散热损失。在
能量计算方面计算了能量损失,利用加热水管给物料加热并进行了换热计算。 本论文在发酵罐的设计中对零件进行了画图,为零件的加工作了前期准备。
关键词:厌氧发酵;沼气; UASB ; 膨胀珍珠岩
Abstract Biogas is a kind of clean and recycling energy resource used for energy resource .Biogas may protect the environment by
processing the waste, Reside and liquid after fermentation are also excellent organic fertilizer. So the biogas fermentation
is one of the essential measurement for synthesized usage of compound waste .Protecting ecological environment and
promoting the sustainable development of the agriculture .Biogas will be transformed into co2 after burning , co2 can be
absorbed by plants and be transformed into organic fertilizer by photosynthesis so the biogas is a kind of renewable energy
resource .The craft of the anaerobic fermentation is the best means to process compound waste .The material for biogas come
from countryside producing biogas can improve the countryside environment ,provide this tusk is wide promising and important
trend for energy source development in 21 century . The research of this thesis is a high efficient install for anaerobic fermentation. in this device the microorganism is
difficult to loss, microorganism precipitate with the mud to the fermented pot bottom, microorganism the density of
microorganism improve in the fermented tin by a large margin , thus the fermented speed and organic matter conversion ratio
raise .This reactor is fit for anaerobic fermentation in countryside ,It is a good way to produce energy resource . This thesis produces the craft of anaerobic fermentation, it choose expanded perlite as insulating layer . Calculate the
thickness of expand perlite and it is heat loss calculated the heat loss and the design of heat the material through pipes. This thesis have designed the detail drawing for parts of fermentation bottle, Which make preparations for the future.
Keywords: The anaerobic fermentation; biogas; UASB; expand perlite
参 考 文 献 [1] 蒋汉文.热工学. 高等教育出版社,1993 [2] 化工部热工设计技术中心站. 热能工程设计手册. 化学工业出版社 [3] 国家医药管理局上海医药设计院. 化学工艺设计手册. 化学工业出版社 [4] 周孟津. 沼气生产利用技术. 中国农业大学出版社,1999 [5] 曹承昭. 沼气技术. 农牧渔业部成都沼气科学研究所,1983 [6] 吴创之,马隆龙. 生物质能现代化利用技术.化学工业出版社,2003 [7] 煤气设计手册编写组.煤气设计手册.北京:中国建筑工业出版社,1983 [8] 张雪元,雷振天. 中国生物质能源概括. 南京林业大学化工学院 [9] R.E.斯皮思. 工业废水的厌氧生物技术. 中国建筑工业出版社, 2001 [10] Shen zhenhuan. The Present Situation and Prospects for the Development of Anaerobin Fermentation Techncology in the Chinese Industry.Environmental Protection Research Institute of Light Industry, 2001 [11] Dr T K Bhattacharya Member. Biodegradability of Dairy Cattle Manure under Dry Anaerobic Fermentation Process, 2003 [12] Wim Turkenburg.Renewable Energy Technologies.in World Engergy Assessment,1999 [13] Wu C Z,Huang H,Zheng S P, An economic analysis of biomass gasification and power gerneration in China. Bioresource
Technology, 2002
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