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[1]李明强,樊俊杰,张忠孝,等.液渣捕捉高碱煤中碱金属特性及机理[J].燃烧科学与技术,2017,(05):429-435.[doi:10.11715/rskxjs.R201703037]
 Li Mingqiang,Fan Junjie,Zhang Zhongxiao,et al.Mechanism Study on Liquid Slag Capture of Alkali Metal[J].Journal of Combustion Science and Technology,2017,(05):429-435.[doi:10.11715/rskxjs.R201703037]
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液渣捕捉高碱煤中碱金属特性及机理()
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《燃烧科学与技术》[ISSN:1006-8740/CN:12-1240/TK]

卷:
期数:
2017年05
页码:
429-435
栏目:
出版日期:
2017-10-15

文章信息/Info

Title:
Mechanism Study on Liquid Slag Capture of Alkali Metal
作者:
李明强1樊俊杰1张忠孝2乌晓江3
1. 上海理工大学环境与建筑学院,上海 200093;2. 上海交通大学机械与动力工程学院,上海 200240; 3. 上海锅炉厂有限公司研发部,上海 200245
Author(s):
Li Mingqiang1Fan Junjie1Zhang Zhongxiao2Wu Xiaojiang3
1.School of Environment and Architecture,University of Shanghai for Science and Technology,Shanghai 200093, China;2.School of Mechanical Engineering,Shanghai Jiao Tong University,Shanghai 200240,China; 3.Research and Development Department,Shanghai Boiler Works Co.Ltd,Shanghai 200245,China
关键词:
高碱煤熔渣量子化学旋风炉捕捉率
Keywords:
high alkali coalliquid slagquantum chemistrycyclone furnacecapture efficiency
分类号:
TK224
DOI:
10.11715/rskxjs.R201703037
文献标志码:
A
摘要:
研究了自身液渣与高碱煤界面反应的物相变化、对高碱煤中元素的捕捉率及其迁移特性,进一步结合量 子化学理论研究其行为机理.结果表明:外层渣主要物相为CaSO4,同时有丰富的Na、K 复盐;高碱煤中Na、 K 大量迁移到液渣中,且内、外层渣元素含量不同;不同矿物元素在渣-煤界面反应中有相异的迁移方向;液渣 对Na、K 的捕捉率为58.15%,、54.15%,,比自身固态灰和在高温区添加高岭土捕捉率高,且在实际应用中应远大 于58.15%,;有两种最易反应路径生成KCaAl3Si3O12(H2O)5.
Abstract:
This paper studied the phase change,capture efficiency and migration characteristics of elements in high alkali coal duing the interfacial reaction between liquid slag and high alkali coal.Combined with the quantum chemistry theory,this paper also discussed the behavior mechanism of the above phenomenon.Based on the experiments, this paper came to conclusions that the main outer slag image was CaSO4,and rich Na,K complex salt.A great quantity of Na,K contained in high alkali coal migrated to liquid slag,and the contents of elements in the inner and outer layers were different.In the liquid slag-coal interface reaction,different mineral elements showed different migration directions.The capture efficiency of Na,K for liquid slag was 58.15%,,54.15%, respectively,which was higher than that for both solid ash and added kaolin in high-temperature zone,and what is more,the capture efficiency was higher than 58.15%,in practical application;there are two reaction paths for KCaAl3Si3O12(H2O)5 formation.

备注/Memo

备注/Memo:
收稿日期:2017-03-20. 基金项目:国家自然科学基金资助项目(51276212);国家科技支撑计划资助项目(2015BAA04B01);上海市科学技术委员会科研计划资 助项目(15dz1206500). 作者简介:李明强(1983— ),男,博士,limingqiang911@163.com. 通讯作者:樊俊杰,男,博士,讲师,Fjj2006jj@126.com.
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