不同变质程度煤焦炭光学组织与冷热性能

doi:10.13228/j.boyuan.issn0449-749x.20190317

Abstract
Figure/Table
References
Related Citation (6)

Download: PDF (947 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract In order to study the influence of coal metamorphism on coke optical structure and the relationship between coke optical structure and cold-hot properties, the maximum reflectance of vitrinite of more than 30 coking coals and the optical structure and cold and hot properties of coke after coking were tested.The results demonstrated that coke optical textures displayed regular changes with the degrees of coal metamorphism. The results show that the optical structure of coke changes regularly with the degree of metamorphism of coking coal, and the volume percent of mosaic structure can be divided into three stages: rapid increase, steady and slow decrease with the maximum reflectance of vitrinite; the change trend of ∑ISO volume percent with the maximum reflectance of vitrinite is opposite. A regression equation can be established between the thermal and cold properties of coke and the volume percent of optical structure. The reactivity of coke increases with the increase of ∑ISO volume percent, while the strength after reaction increases with the increase of the volume percent of mosaic structure. After the regression equation is used to guide coking production, the economic benefit is remarkable.

Key words： coal maximum reflectance of vitrinte coke optical texture coke quality

Received: 12 July 2019

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	GUO De-ying
	LI Dong-tao
	ZHANG Xiao-ming
	MA Chao
	DAI Xin
	LIU Yang

Cite this article:

GUO De-ying,LI Dong-tao,ZHANG Xiao-ming等. Optical structure and thermal and cold properties of different rank coal coke[J]. Iron and Steel, 2020, 55(4): 20-26.

URL:

http://www.chinamet.cn/Jweb_gt/EN/10.13228/j.boyuan.issn0449-749x.20190317 OR http://www.chinamet.cn/Jweb_gt/EN/Y2020/V55/I4/20

[1] 杨俊和,冯安祖,杜鹤桂.冶金焦在高炉内微观结构的变化[J].钢铁,2000,35(11):4. (YANG Jun-he,FENG An-zu,DU He-gui. Change of metallurgical coke microstructure in blast furance[J].Iron and Steel,2000, 35(11):4.)
[2] 周师庸,赵俊国.炼焦煤性质与高炉焦炭质量[M].北京:冶金工业出版社,2008.(ZHOU Shi-yong,ZHAO Jun-guo. Properties of Coking Coal and Quality of Coke for the Blast Furnace[M].Beijing:Metallurgical Industry Press,2008.)
[3] 朱利,折媛,湛文龙,等. 焦炭高温性能对高炉焦炭负荷影响的生产实践[J].钢铁, 2018, 53(4): 8.(ZHU Li,SHE Yuan,ZHAN Wen-long,et al. Practice for effect of coke high temperature properties on coke burden in blast furnace[J]. Iron and Steel, 2018, 53(4): 8.)
[4] 顾凯, 吴胜利, 寇明银. 焦炭热态性能对高炉产质量影响的统计解析 [J]. 钢铁, 2019, 54(2): 20. (GU Kai, WU Sheng-li, KOU Ming-yin. Statistical analysis of influence of coke thermal properties on blast furnace[J]. Iron and Steel, 2019, 54(2): 20.)
[5] 张小明,马超,李东涛,等. 延长碳化时间对焦炭性能的影响[J]. 中国冶金, 2019, 29(6): 6. (ZHANG Xiao-ming,MA Chao,LI Dong-tao,et al. Influence of extending carbonization time on coke performance[J]. China Metallurgy, 2019, 29(6): 6.)
[6] 姚昭章.炼焦学[M].北京:化学工业出版社,2004.(YAO Zhao-zhang. Coking Science[M].Beijing: Chemical Industry Press,2004)
[7] 谢全安,魏侦凯,郭瑞,等.焦炭热性质评价方法的研究进展[J].钢铁,2018, 53(9):1.(XIE Quan-an,WEI Zhen-kai,GUO Rui,et al. Present situation of evaluation method of coke thermal properties[J].Iron and Steel,2018, 53(9): 1.)
[8] 吕庆,王岩,谢海深,等. 灰成分及光学组织对焦炭热性能的影响[J]. 中国冶金, 2016, 26(8): 8. (LÜ Qing,WANG Yan,XIE Hai-shen,et al. Effect of ash composition and optical texture on coke thermal property[J]. China Metallurgy, 2016, 26(8): 8.)
[9] 刘尚超, 陈鹏, 项茹, 等. 焦炭热性能影响因素分析[J].煤炭科学技术,2008, 35(5):104.(LIU Shang-chao, CHEN Peng, XIANG Ru, et al. Analysis on factors affected to thermal performances of coke[J].Coal Science and Technology, 2008, 35 (5):104.)
[10] ZHANG Wei-ji, SHI Ting, ZHANG Qi-feng, et al. Coke texture, reactivity and tumbler strength after reaction under simulated blast furnace conditions[J]. Fuel,2019, 251:218.
[11] 李杰,宋灿阳,李小静,等. 高炉喷吹煤粉燃烧性与反应性的研究与应用[J]. 中国冶金, 2019, 29(1): 8.(LI Jie,SONG Can-yang,LI Xiao-jing,et al. Research and application of combustibility and reactivity of pulverized coal injected in blast furnace[J]. China Metallurgy, 2019, 29(1): 8.)
[12] Li Ke-jiang,Rita Khanna, Zhang Jian-liang. The evolution of structural order, microstructure and mineral matter of metallurgical coke in a blast furnace: A review[J]. Fuel,2014,133:194
[13] 薛改凤,许传智,陈鹏.煤岩配煤技术在武钢生产中的应用研究[J].武汉科技大学学报:自然科学版,2006, 29(6):571.(XUE Gai-feng, XU Chuan-zhi, CHEN Peng. Study on the application of coal petrology in blending coal for coking inWISCO[J].Journal of Wuhan University of Science and technology:Natural Science,2006, 29(6):571.)
[14] 陈鹏.中国煤炭性质分类和利用[M].北京:化学工业出版社,2001.(CHEN Peng.Classification and Utilization of Coal Properties in China[M].Beijing: Chemical Industry Press,2001.)
[15] 周师庸,周淑仪.焦炭光学性质的实用意义[J].炼焦化学,1982(1):33.(ZHOU Shi-yong, ZHOU Shu-yi. Practical significance of optical properties of coke[J].Coking Chemistry,1982(1):33.)
[16] 张代林,曾涛,李伟锋,等.煤焦显微结构特征与焦炭性质的关系[J].钢铁,2011,46(1):14.(ZHANG Dai-lin, ZENG Tao, LI Wei-feng,et al. Relation between microstructure characteristics of coal and coke and quality of coke[J].Iron and Steel,2011,46(1):14.)
[17] 傅永宁.高炉焦炭[M].北京:冶金工业出版社,1995.(FU Yong-ning. Blast Furnace Coke[M].Beijing: Metallurgical Industry Press,1995.)
[18] 周师庸.大型高炉用焦炭质量指标的选择[J].钢铁,1995, 30(8):1.(ZHOU Shi-yong. Choice of quality index of coke for large blast furance[J].Iron and Steel,1995,30(8):1.)
[19] 张代林,林慧薪,王晓婷,等. 炼焦煤灰分对其结焦性的影响规律[J]. 钢铁, 2017, 52(8): 10.(ZHANG Dai-lin,LIN Hui-xin,WANG Xiao-ting,et al. Influence of ash of coking coals on its coking property[J]. Iron and Steel, 2017, 52(8): 10.)