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| Numerical simulation of coal pencil expansion behavior in Audibert-Arnu dilatometer experiment |
| Luo Jie1, Duan Lianlei1, Manlidan·Zerminbieke2,3, Liu Ying1, Cheng Shuai4 |
| 1. Xinjiang Uygur Autonomous Region, Coal Coalbed Methane Testing Institute, Urumqi 830091, China； 2. School of Management and Economics, Kunming University of Science and Technology, Kunming 650093, China； 3. Xinjiang Institute of Metrology and Testing, Uygur 831400, China； 4. Xinjiang University, Uygur 831400, China |
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Abstract The expansion behavior of the coal pencil during the carbonization process in the Audibert-Arnu dilatometer experiment was studied by numerical simulation. The discrete element method (DEM) was used to simulate the expansion behavior of the coal pencil during the carbonization process, and the effects of three different coal particle compositions and operating conditions on the expansion of the coal pencil were analyzed. The results show that when coal particles of the same particle size fall, the height of the coal pencil was determined by the particle size, and when coal particles of the same particle size expand, the height of the coal pencil was also determined by the particle size. However, the height of the coal pencils with different particle sizes is lower than that of the coal pencils with the same particle size, which is due to the fact that the smaller coal particles enter the gaps between the larger coal pencil particles. The research on the swelling behavior of coal pen in the carbonization process is of great significance for the reasonable allocation of coal particle composition and the improvement of the success rate of coal pen preparation.
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| [ 1 ] 冯秀云. 烟煤奥亚膨胀度测定的影响因素分析[ J ]. 科技传播，2011（ 17 ）：102 - 103.
[ 2 ] 温雨鑫，徐 祥，阳绍军，等. 热解条件对煤膨胀和球形度的影响[ J ]. 煤炭转化，2014，37（ 1 ）：32 - 36.
[ 3 ] H. Suginobe and T. Miyagawa: Tetsu-to-Hagané[ J ]. Food and Nutrition Sciences, 1982( 68 ): 21 - 33 .
[ 4 ] T. Okuhara: Tetsu-to-Hagané[ J ]. Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan, 1987( 73 ): 18 - 46 .
[ 5 ] Y. Miura, T. Yamaguchi, T. Nishi and Y. Yone: J[ J ]. Fuel Soc. Jpn., 1981( 60 ), 67 - 71.
[ 6 ] H. Iwakiri, T. Kamijyo, C. Nakamura and H. Tanaka: Tetsu-to-H-
agané[ J ]. International Journal of Clinical Medicine, 1989( 75 ): 18 - 61.
[ 7 ] Y. Kubota, S. Nomura, T. Arima and K. Kato: Tetsu-to-Hagané[ J ]. Health, 2006( 92 ): 18 - 33.
[ 8 ] K. Fukada, T. Yamamoto, I. Shimoyama, et al. Sumi: Tetsu-to-H-
agané[ J ]. Open Journal of Endocrine and Metabolic Diseases, 2007 ( 93 ): 14 - 38.
[ 9 ] Y. Ono, M. Ramdzuanny, Y. Matsushita, et al. Shishido: ISIJ[ J ]. Article overview, 2021( 61 ): 27 - 37.
[ 10 ] 王 帅，周文艳，高亚芳，等. 炼焦煤热解过程中膨胀压力的形成机制及对焦炭质量的影响[ J ]. 煤炭转化，2024，47（ 2 ）：30 - 43.
[ 11 ] Y. Saito, Y. Miyamoto, Y. Ono, et al. Aoki and H. Hayashizaki: IS-
IJ Int[ J ]. Article overview, 2018 ( 58 ): 660 - 663.
[ 12 ] Y. Fujii, N. Imazato, Y. Suzuki, et al. Saito: J. Jpn. Inst[ J ]. Ener-
gy, 2022( 101 ): 205 - 209.
[ 13 ] P. A. Cundall and O. D. L. Strack: Geotechnique [ J ]. Energy, 1979 ( 29 ): 47 - 50.
[ 14 ] 任志鹏. 影响烟煤奥亚膨胀度测定值的因素[ J ]. 天津化工，2020，34（ 5 ）：39 - 40.
[ 15 ] GB/T 474-2008，煤样的制备方法[ S ]. |
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