GAO Pengyong, SHI Biming, ZHANG Leilin, XUE Chuang, ZHONG Zhen, LIU Yi. Combustion characteristics experiments of coal with different moisture content[J]. Journal of Mine Automation, 2021, 47(7): 120-124. DOI: 10.13272/j.issn.1671-251x.2021030017
Citation: GAO Pengyong, SHI Biming, ZHANG Leilin, XUE Chuang, ZHONG Zhen, LIU Yi. Combustion characteristics experiments of coal with different moisture content[J]. Journal of Mine Automation, 2021, 47(7): 120-124. DOI: 10.13272/j.issn.1671-251x.2021030017

Combustion characteristics experiments of coal with different moisture content

More Information
  • In order to study the effect of moisture content on the combustion characteristics of coal, taking the bituminous coal from Zhujixi Coal Mine as the research object, the method uses cone calorimeter to test the parameters of ignition time, heat release rate, total heat release, smoke generation rate, total smoke release and CO generation rate of coal samples with different moisture content and analyzes the combustion efficiency of coal samples. The experimental results show the following points. ① The ignition time of coal samples decreases first and then increases with the increase of moisture content. The order of moisture content of coal samples corresponding to ignition time from long to short is 17.82%>13.82%>1.82%>5.82%>9.82%. The peak heat release rate of the coal sample decreases first, then increases and then decreases with the increase of water content. The order of moisture content of coal samples corresponding to peak heat release rate from large to small is 9.82%>1.82%>5.82%>13.82%>17.82%. The total heat release, smoke generation rate, and total smoke release of coal samples decrease first, then increase and then decrease with the increase of water content. The order of the moisture content of coal samples corresponding to the total heat release, smoke generation rate, and total smoke release from large to small is 1.82%>9.82%>5.82%>13.82%>17.82%. In the late stage of combustion process, the coal sample with 5.82% moisture content has the lowest CO generation rate, and the coal sample with 17.82% moisture content has the highest CO generation rate. The high moisture content will increase the CO yield. The order of the moisture content of coal samples corresponding to the combustion efficiency from high to low is 9.82%>5.82%>1.82%>13.82%>17.82%. ② Appropriate moisture content can improve the combustion performance of coal. It is suggested to choose the coal with moisture content of 5.82% to 9.82% so as to shorten the coal ignition time, reduce the smoke generation rate, total smoke release and CO generation rate, and improve the heat release rate and combustion efficiency.
  • Related Articles

    [1]LI Xiaoliang, YAN Li, LIU Zhentang, LIU Haoxiong, QIAN Jifa, . Analysis of combustion duration and residual gas in secondary explosion of coal dust[J]. Journal of Mine Automation, 2018, 44(11): 62-68. DOI: 10.13272/j.issn.1671—251x.2018040085
    [2]ZHANG Yanliang, LIU Yaonan, WANG Jinfeng. Research of efficiency of coal mine production logistics system based on system dynamics[J]. Journal of Mine Automation, 2016, 42(1): 40-44. DOI: 10.13272/j.issn.1671-251x.2016.01.012
    [3]TIAN Feng, FANG Haifeng, LI Yunwang. Research of energy efficiency model of mine rescue robot[J]. Journal of Mine Automation, 2014, 40(10): 15-18. DOI: 10.13272/j.issn.1671-251x.2014.10.005
    [4]MIAO Jingli, YU Xiang. Research of active disturbance rejection control for efficiency optimization of induction motors[J]. Journal of Mine Automation, 2014, 40(9): 79-83. DOI: 10.13272/j.issn.1671-251x.2014.09.019
    [5]ZHANG Ka, FANG Lei, CAO Xiaodong. MTPA-DTC efficiency optimization method for feeding system of pressure filter[J]. Journal of Mine Automation, 2014, 40(8): 39-42. DOI: 10.13272/j.issn.1671-251x.2014.08.010
    [6]SUN Wen, ZHANG Xinghua. Efficiency optimization of direct torque control for permanent magnet synchronous motor[J]. Journal of Mine Automation, 2014, 40(3): 56-59. DOI: 10.13272/j.issn.1671-251x.2014.03.016
    [7]TAN Da-ke. Research of Relationship between Reading Card Efficiency and Distance of EPC Gen2 System[J]. Journal of Mine Automation, 2012, 38(2): 16-18.
    [8]ZHANG Song. Optimal Control for Combustion System of Middle and Small Pulverized Coal Boiler[J]. Journal of Mine Automation, 2011, 37(3): 98-101.
    [9]SUN Xi-rui, LI Ying-jia. Design of High-efficiency Miner's Lamp[J]. Journal of Mine Automation, 2008, 34(3): 121-122.
    [10]JIANG Lei, LIU Fang-hua. The Research of Bridge Circuit with Constant Temperature Detection of Catalyst Combustion Methane Sensor[J]. Journal of Mine Automation, 2006, 32(6): 14-16.
  • Cited by

    Periodical cited type(6)

    1. 侯博. 硬岩桩基成孔技术研究. 凿岩机械气动工具. 2025(01): 147-149 .
    2. 陈立新,付玉平,李川田. 多煤层重复采动条件下大巷底鼓破坏规律研究. 能源与节能. 2025(02): 59-63 .
    3. 刘静波. 重复采动下采场围岩应力响应特征研究. 山东煤炭科技. 2024(09): 112-116+127 .
    4. 解嘉豪,崔峰,韩刚,苌玉,刘虎,郝晓琦. 深埋煤层临空面开采覆岩结构失稳机理与防治技术. 西安科技大学学报. 2024(06): 1050-1059 .
    5. 王雪江,陈虎斌. 开拓煤业兼并重组原主扇匹配性分析及主扇选型研究. 当代化工研究. 2022(13): 80-82 .
    6. 冯超. 矿井通风系统优化及主扇改造技术研究. 当代化工研究. 2022(19): 176-178 .

    Other cited types(5)

Catalog

    Article Metrics

    Article views (281) PDF downloads (13) Cited by(11)
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return