全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

基于炉烟干燥及水回收风扇磨仓储式制粉系统的高效褐煤发电技术

, PP. 13-20

Keywords: 褐煤,发电技术,锅炉,开式制粉系统,水回收,节能

Full-Text   Cite this paper   Add to My Lib

Abstract:

提出了一种基于炉烟干燥及水回收风扇磨仓储式制粉系统的高效褐煤发电技术,并以某在役600MW超临界褐煤(全水分39;5%)机组为对比工程,对应用炉烟干燥及水回收仓储式制粉系统的安全性、节能性及水回收效益进行了计算比较和分析讨论。结果表明:该技术可降低机组标煤发电煤耗10g/(kW?h)左右,同时锅炉岛投资有所减小,厂用电基本不变;通过高湿制粉乏气的冷却,可回收大量原煤中水资源,若将其用于补充电厂水耗,有望实现?零水耗?褐煤电厂;以惰性烟气为制粉系统干燥剂,解决了困扰燃褐煤机组安全运行的制粉系统爆炸问题;在实现上述效果的同时,未产生新的污染物排放。该技术工艺及设备成熟,工程可行性佳;而且与以提高蒸汽参数为主要思路的超临界、超超临界、二次再热及700℃发电技术均可组合应用。该技术对加快褐煤产区电源基地建设和改善当地生态环境具有重大社会意义和显著经济效益,是值得深入研究与推广应用的绿色高效燃煤发电技术。

References

[1]  Muhammad Aziz,Yasuki Kansha,Atsushi Tsutsumi. Self- heat recuperative fluidized bed drying of brown coal [J]. Chemical Engineering and Processing:Process Intensification, 2011,50(9):944-951.
[2]  Bongers G D,Jackson W R,Woskoboenko F. Pressurised steam drying of Australian low-rank coals part 1:equilibrium moisture contents[J]. Fuel Processing Technology, 1998,57(1):41-54.
[3]  Chen Z,Agarwal P K,Agnew J B. Steam drying of coal-Part 2:modeling the operation of a fluidized bed drying unit[J]. Fuel, 2001,80(2):209-223.
[4]  郭晓克,肖峰,严俊杰,等. 高效褐煤发电系统研究[J]. 中国电机工程学报, 2011,31(26):23-31. Guo Xiaoke,Xiao Feng,Yan Junjie,et al.Study on efficient lignite-fired power system[J].Proceedings of the CSEE,2011,31(26)
[5]  郭晓克,刘明,肖峰,等. 带废热回收的预干燥燃褐煤发电系统理论研究[J]. 中国电机工程学报, 2012,32(8):44-49. Guo Xiaoke,Liu Ming,Xiao Feng,et al.Theoretical study on a pre-dried lignite-fired power system with wasteheat recovery[J].Proceedings of the CSEE,2012,32(8)
[6]  严俊杰,刘明,种道彤,等. 预干燥燃褐煤发电系统理论研究[J]. 西安交通大学学报, 2011,45(5):1-5. Yan Junjie,Liu Ming,Chong Daotong,et al.Theoretical study on pre-dried lignite-fired power generation system [J].Journal of Xi?an Jiaotong University,2011,45(5)
[7]  王冲,董建勋,白向飞,等. 褐煤深度脱水的实验研究[J]. 洁净煤技术, 2012,18(1):49-52. Wang Chong,Dong Jianxun,Bai Xiangfei,et al.Experimental investigation on deep dewatering of lignite[J].Clean Coal Technology,2012,18(1)
[8]  尹立群. 我国褐煤资源及其利用前景[J]. 煤炭科学技术, 2004,32(8):12-14. Yi Liqun,Lignite resources and utilization outlook in China[J].Coal Science and Technology,2004,32(8)
[9]  Hatzilyberis K S,Androutsopoulos G P,Salmas C E. Indirect thermal drying of lignite:design aspects of a rotary dryer[J]. Drying Technology, 2000,18(9):2009-2049.
[10]  郝正虎,李向武,董建勋,等. 高温烟气褐煤干燥技术分析[C]//中国新型煤化工发展及示范项目进展论坛文集,北京:2010. Hao Zhenghu, Li Xiangwu,Dong Jianxun,et al.Analysis of lignite drying technology used high temperature flue gas[C]//Proceeding on Development of New Coal Chemical Industry and Progress of Demonstrative Projects in China,Beijing:2010(in Chinese).
[11]  田忠坤. 直管式气流干燥器干燥褐煤的试验研究[J]. 选煤技术, 2010,3(3):16-20. Tian Zhongkun.Study of straight pipe type lignite air dryer[J].Coal Preparation Technology,2010,3(3)
[12]  Bergins C. Kinetics and mechanism during mechanical/ thermal dewatering of lignite[J]. Fuel, 2003,82(4):355-364.
[13]  Bergins C. Mechanical/thermal dewatering of lignite. Part 2:A rheological model for consolidation and creep process [J].Fuel, 2004,83(3):267-276.
[14]  Bergins C. Mechanical/thermal dewatering of lignite. Part 3:Physical properties and pore structure of MTE product coals[J].Fuel, 2007,86(1):3-16.
[15]  Bergins C. Mechanical/thermal dewatering of lignite. Part 4:Physico-chemical properties and pore structure during an acid treatment within the MTE process[J].Fuel, 2012,93:433-442.
[16]  赵卫东,刘建忠,周俊虎,等. 褐煤等温脱水热重分析[J]. 中国电机工程学报, 2009,29(14):74-79. Zhao Weidong,Liu Jianzhong,Zhou Junhu,et al.Investigation on the isothermal dewatering of brown coal by thermo balance[J].Proceedings of the CSEE,2009,29(14)
[17]  潘永康,王喜忠,刘相东. 现代干燥技术[M]. 北京:化学工业出版社, 1998:103-129. Pan Yongkang,Wang Xizhong,Liu Xiangdong.Modern drying technology[M].Beijing:ChemicalIndustry Press,1998
[18]  张方炜. 高水分褐煤锅炉及其制粉系统设计[J]. 电力勘测设计, 2007,(6):46-50. Zhang Fangwei.Design of boiler and pulverized coal system of high moisture brown coal[J].Electric Power Survey & Design,2007,(6)
[19]  刘钢,谭红军,叶菲. 大型褐煤锅炉及其制粉系统的特点与选择[J]. 电力建设, 2008,29(5):54-57. Liu Gang,Tan Hongjun,Ye Fei.Characteristics and selection of large lignite boiler and its pulverization system[J].Electric Power Construction,2008,29(5)
[20]  刘武成. 澳大利亚褐煤锅炉的燃烧技术[J]. 中国电力, 1994(3):48-52. Liu Wucheng.Combustion technologies of lignite boiler in Australia[J].Electric Power,1994(3)
[21]  樊功德. 高水分褐煤电站锅炉燃烧问题[J]. 内蒙古电力, 1987(2):32-42. Fan Gongde.Combustion matters with boiler fired high moisture lignite[J].Inner Mongolia Electric Power,1987(2)
[22]  邹文华,唐方,王岩. 鸭河口电厂#1机组特点介绍[J]. 河南电力, 2000(2):6-8. Zou Wenhua,Tang Fang,Wang Yan.Introduction on the characteristics of generating unit #1 in Yahekou power plant[J].Henan Electric Power,2000(2)
[23]  杨建. 锅炉布袋除尘器常见故障及对策[J]. 四川电力技术, 2000(6):16-18. Yang Jian.Frequent malfunctions of bag dust collector used in boiler and its countermeasures[J].Sichuan Electric Power Technology,2000(6)
[24]  黄新元,孙奉仲,史月涛. 低压省煤器系统节能理论及其在火电厂的应用[J]. 山东电力技术, 2008(2):3-6. Huang Xinyuan,Sun Fengzhong,Shi Yuetao.Principle and engineering application of low pressure economizer system installed in power stations[J].Shandong Electric Power,2008(2)
[25]  赵恩婵,张方炜,赵永红. 火力发电厂烟气余热利用系统的研究设计[J]. 热力发电, 2008,37(10):66-70. Zhao Enchan,Zhang Fangwei,Zhao Yonghong.Study and design of residual heal utilization system for flue gas in thermal power plants[J].Thermal Power Generation,2008,37(10)
[26]  徐永康,林万超,李笑乐,等. 低压省煤器系统及其节能效益[J]. 中国电力, 1984,(10):21-24. Xu Yongkang,Lin Wanchao,Li Xiaole,et al.The low pressure economizer system and its benefit of saving energy[J].Electric Power,1984,(10)
[27]  贾力,齐巍,吴冬梅,等. 含湿混合气体水平管外对流冷凝换热实验研究[J]. 热科学与技术, 2007,6(4):300-303. Jia Li,Qi Wei,Wu Dongmei,et al.Experimental research on convective condensation heat transfer for wet flue gas outside horizontal tube[J].Journal of Thermal Science and Technology,2007,6(4)

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133