学海网

毕业设计 污泥代替一部分煤制浆的实验测定(共36页,16732字)
摘要
随着我国经济的快速发展和城市化进程的加快，污泥的产生量也呈增加的趋势。为了实现污泥的资源化利用，我们在本课题中研究了将污泥代替一部分煤，制污泥水煤浆。并测定了干煤与干污泥不同比例的污泥水煤浆的流变性和共气化动力学。结果发现：浆体中的固体含量越高，表观粘度越高，剪切速率越大，表观粘度越高。还有污泥在热解时失重率很高，但也发现一个难题，就是污泥本身含有大量水分，但是很难成浆，这是需要克服的问题。
关键词：污泥，水煤浆，粘度，气化动力学
Abstract
With the rapid development of economy and city, the yield of sewage sludge is increasing. In order to utilize the sludge as a resource, the propose of the task which I researched is to use the sludge to replace the coal in a measure, and working out the coal slurry. During my experiment, the flow property and the co-gasification kinetics of the different ratio between dry coal and dry sludge has been tested. The result comes out that the higher the content of solid in coal slurry is, the higher apparent viscidity is; and the bigger the rate of cut, the higher apparent viscidity is. And during the pyrogenation the ratio of the sludge weightlessness is very high. However there is a problem in my task, which is that though the sewage sludge are containing a lot of water, it’s hard to make slurry.
Key words: sludge, coal slurry, conglutination, gasification kinetics
目录
1 前言 1
1.1 研究背景 1
1.2 研究内容 2
2 文献综述 3
2.1 水煤浆 3
2.2 污泥 3
3 实验装置与实验内容 13
3.1 实验装置 13
3.2 实验内容 16
4 实验结果分析 17
4.1 污泥的基本物性分析 17
4.2 污泥煤浆的流变性 18
4.3 污泥煤浆的气化动力学 22
5 结论 30
参考文献 31
致谢 33