共查询到20条相似文献,搜索用时 265 毫秒
1.
随着城市化进程的推进,生活垃圾日益增多,垃圾处理迫在眉睫。深入分析了我国生活垃圾的特性,阐述了垃圾焚烧余热锅炉的工作原理,介绍了350 t/d垃圾焚烧立式余热锅炉的设计参数及结构特点。垃圾焚烧锅炉对生活垃圾的回收利用和环境保护有着积极的意义。 相似文献
2.
考虑到污泥处理的紧迫性和复杂性,结合工程的经济性原则,重点介绍了无害化处理城市污泥的系统方案——污泥干化焚烧.该系统采用空心桨叶污泥干燥机对污泥进行干燥、循环流化床炉对污泥进行焚烧,再利用余热锅炉吸收烟气热能产生蒸汽用于污泥干燥机对污泥进行干燥,实现了整个废弃物能源利用的最大化,降低了系统整体的运行费用.经过处理后的污... 相似文献
3.
4.
Masoud Rokni 《International Journal of Hydrogen Energy》2018,43(11):5922-5938
Energy saving is an open point in most European countries where energy policies are oriented to reduce the use of fossil fuels, greenhouses emissions and energy independence, and to increase the use of renewable energies. In the last several years, new technologies have been developed and some of them received subsidies to increase installation and reduce cost. This article presents a new sustainable trigeneration system (power, heat and cool) based on a solid oxide fuel cell (SOFC) system integrated with an absorption chiller for special applications such as hotels, resorts, hospitals, etc. with a focus on plant design and performance. The proposal system is based on the idea of gasifying the municipal waste, producing syngas serving as fuel for the trigeneration system. Such advanced system when improved is thus self-sustainable without dependency on net grid, district heating and district cooling. Other advantage of such waste to energy system is waste management, less disposal to sanitary landfills, saving large municipal fields for other human activity and considerable less environmental impact. Although plant electrical efficiency of such system is not significant but fuel utilization factor along with free fuel, significant less pollutant emissions and self-sustainability are importance points of the proposed system. It is shown that the energy efficiency of such small tri-generation system is more than 83% with net power of 170 kW and district energy of about 250 kW. 相似文献
5.
城市生活垃圾焚烧发电在解决当前城市固体废弃物污染问题、改善城市能源供需矛盾问题方面均发挥着重要作用。但是生活垃圾焚烧发电过程中会产生大量烟气,其中存在诸多有毒有害物质,若是处理不当,则有可能造成严重的环境污染。主要对城市生活垃圾及其处理、城市生活垃圾焚烧发电技术、城市生活垃圾焚烧发电的意义进行了分析,并探讨了城市生活垃圾焚烧处理烟气中有害物质的形成机理及其处理工艺。 相似文献
6.
7.
垃圾前处理系统,即在垃圾进入锅炉之前对垃圾进行处理的系统,是城市生活垃圾焚烧发电厂的重要的组成部分,也是工程设计中的重点和难点。结合在工程设计中的学习和实践,简要介绍了使用炉排炉的垃圾电厂中的垃圾前处理系统;针对使用CFB焚烧锅炉的电厂,对目前已经出现的几种形式的处理系统,进行了简单的阐述和比较分析,根据不同的情况给出推荐方案和建议:在需要全量破碎的情况下,推荐采用四列式布置,否则,推荐采用两列式布置,无论采用哪种布置形式,应设置人工分拣工序。 相似文献
8.
9.
城市垃圾的能源化技术及其在国内的发展 总被引:1,自引:0,他引:1
城市垃圾成为日益严重的环境问题、社会问题和经济问题,如何利用城市垃圾,使其变废为宜,为人类服务是目前人们关注的热点。主要介绍在法国采用的垃圾液化焚烧发电技术以及目前垃圾焚烧发电在国内的发展情况。 相似文献
10.
本文从垃圾料系统,焚烧炉排型式和燃烧调整等方面,介绍德国EVT公司的垃圾焚烧系统燃烧设备,分析了燃烧设备的特点。 相似文献
11.
本文分析了我国的能源形势,能源利用率与世界先进国家存在的差距,阐述了余热锅炉在回收余热、环境保护等方面起着重要作用,重点介绍了三废混燃余热锅炉的结构设计特点。 相似文献
12.
珠海市垃圾发电厂的3×200 t/d垃圾焚烧锅炉于2000年7月正式投入使用,由于当时国内垃圾焚烧技术刚起步,该厂的焚烧系统和烟气处理系统难以达到现行的国家相应标准,污染物排放一定程度上超标。为确保生活垃圾无害化处理达标,2010年该厂对垃圾焚烧锅炉及烟气处理设备进行技术改造,主要介绍锅炉技术改造方面的内容。 相似文献
13.
介绍和分析了一种高参数炉排垃圾焚烧余热锅炉的总体设计方案及技术特点,以及垃圾焚烧炉防止受热面高温腐蚀、降低污染物排放的关键技术. 相似文献
14.
15.
基于余热锅炉热力计算理论和实际工程中锅炉运行所得的宝贵经验数据,开发了界面友好、应用便捷的可视化热力计算程序,有效地改进了原有程序的不足,并根据工程需要实现新功能的开发,使得计算结果合理而准确,通过原有工程实例验证,证明该程序可行,通过该程序不仅提高了设计效率,也保证了设计质量。 相似文献
16.
H. Chokouhmand 《Energy Conversion and Management》1982,22(3):231-234
In this paper, energy recovery by incineration of municipal solid waste from the city of Tehran has been studied. A laboratory was established to obtain the physical and chemical compositions of the waste. Data on the amount of collected solid waste was also analyzed. Based on this information and, a survey of current technologies consideration of air pollution effects and other factors, it was concluded that incineration of Tehran municipal solid waste may not be acceptable at the present time. 相似文献
17.
18.
19.
20.
Gibbs free energy minimization has been used to estimate the hydrogen production potential of air gasification of the wet organic fractions of municipal solid waste available in the Bergen region in Western Norway. The aim of this work was to obtain an upper limit of the amount of hydrogen that could be produced and to estimate of the number of vehicles: passenger ferries and cars that could be supplied with an alternative fuel. The hydrogen production potential was investigated as function of waste composition, moisture content, heat loss, and carbon conversion factor. The amount of hydrogen annually available for both gasification and gasification combined with water-gas-shift-reaction was calculated for different scenarios. Up to 2700 tonne H2 per year could be produced in the best case scenario; which would, if only utilised for maritime operations, be enough to supply nine ferries and ten fast passenger boat connections in the Hordaland region in Western Norway with hydrogen. 相似文献