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Experimental study on prevention and control of coal spontaneous combustion with heat control inhibitor

机译：热控制抑制剂防治防治防治试验研究

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摘要

Traditional inhibitors have such disadvantages as unstable inhibitory effects and short active lifetimes. Sodium bicarbonate, stable in nature, is expected to absorb heat and lower the temperature upon heated and decomposition, enabling its decomposition product to be effective for preventing coal oxidation and spontaneous combustion. Accordingly, the present study investigates the characteristics of sodium bicarbonate and proposes a novel method for preventing the spontaneous combustion of coal using sodium bicarbonate. By establishing a programmed temperature experimental system of coal spontaneous combustion in the laboratory, the researchers added sodium bicarbonate (03-3 g) to the coal samples, and analyzed changes in CO and O-2 concentration. The results out of the present experimental conditions, compared with those of coal samples treated with magnesium and calcium chlorides, show that adding different amounts of sodium bicarbonate can inhibit coal oxidation with an optimal addition amount of 3 g. When the amount of sodium bicarbonate added was larger than 2 g and the temperature above 130 degrees C, its inhibitory effect is more significant than that of existing inhibiting agents.
机译：传统抑制剂具有这种缺点，作为不稳定的抑制作用和短暂的活跃的寿命。碳酸氢钠，本质上稳定，预计将吸收热量并在加热和分解时降低温度，使其分解产物能够有效地防止煤氧化和自发燃烧。因此，本研究研究了碳酸氢钠的特征，并提出了一种用碳酸氢钠防止煤的自燃燃烧的新方法。通过在实验室中建立煤炭自燃的编程温度实验系统，研究人员向煤样中加入了碳酸氢钠（03-3g），并分析了CO和O-2浓度的变化。与本实验条件的结果相比，与用镁和氯化钙处理的煤样品相比，表明添加了不同量的碳酸氢钠可以抑制煤氧化，并以最佳的添加量为3g。当加入的碳酸氢钠量大于2g并且温度高于130℃时，其抑制作用比现有抑制剂的抑制作用更显着。

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  • 作者

    Wu Zhengyan; Hu Shanshan; Jiang Shuguang; He Xinjian; Shao Hao; Wang Kai; Fan Deqiang; Li Wanrong;

  • 作者单位

    China Univ Min &

    Technol Minist Educ Key Lab Coal Methane &

    Fire Control Xuzhou 221116 Jiangsu Peoples R China;

    China Univ Min &

    Technol Minist Educ Key Lab Coal Methane &

    Fire Control Xuzhou 221116 Jiangsu Peoples R China;

    China Univ Min &

    Technol Minist Educ Key Lab Coal Methane &

    Fire Control Xuzhou 221116 Jiangsu Peoples R China;

    West Virginia Univ Statler Coll Engn &

    Mineral Resources Dept Ind &

    Management Syst Engn Morgantown WV 26506 USA;

    China Univ Min &

    Technol Minist Educ Key Lab Coal Methane &

    Fire Control Xuzhou 221116 Jiangsu Peoples R China;

    China Univ Min &

    Technol Minist Educ Key Lab Coal Methane &

    Fire Control Xuzhou 221116 Jiangsu Peoples R China;

    China Univ Min &

    Technol Minist Educ Key Lab Coal Methane &

    Fire Control Xuzhou 221116 Jiangsu Peoples R China;

    China Univ Min &

    Technol Minist Educ Key Lab Coal Methane &

    Fire Control Xuzhou 221116 Jiangsu Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 安全管理（劳动保护管理）;
  • 关键词

    Coal spontaneous combustion; Heat control inhibitor; Programmed temperature; Inhibition effect;

    机译：煤炭自燃;热控制抑制剂;编程温度;抑制效果;

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