Scholarlink

Coal mine fires present a significant global challenge, primarily due to spontaneous combustion—a slow, low-temperature, flameless process sustained by heat generated when oxygen reacts with the surface of condensed-phase fuel. This phenomenon is particularly prevalent in coal mining operations, leading to mine fires, resource depletion, and environmental harm. ​Understanding and mitigating spontaneous combustion are critical for ensuring safety and efficiency in coal mining. Various experimental studies have been conducted to monitor and provide early warnings of spontaneous combustion. Additionally, research has focused on the oxidation characteristics of coal under different conditions to better predict and prevent spontaneous combustion events. The CPT (Crossing Point Temperature) test method serves as a key tool in evaluating a coal sample's predisposition to spontaneous combustion. The laboratory conducted an assessment of inherent coal properties, including ash content, volatile matter, moisture content, and fixed carbon, expressed as percentages. Subsequently, laboratory tests on the coal samples were conducted to determine the crossing point temperature. This temperature represents the point at which the coal temperature equals that of the reference sample (bath), aiding in comprehending the susceptibility of different coal samples to self-heating. In the experimental analysis, the highest values in proximate analysis were observed for moisture content (21.48%), volatile matter (43.09%), ash content (26.84%), and fixed carbon (44.81%) among the five coal samples studied. Additionally, the crossing point temperature exhibited variations, with the maximum and minimum values recorded at 179.6 °C and 135.4 °C, respectively, for the field-collected samples. These findings contribute valuable insights into the characteristics and vulnerability of coal samples to spontaneous combustion, providing crucial information for developing preventive measures and strategies in the ongoing battle against coal mine fires.

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Investigational Analysis of Spontaneous Combustion Susceptibility

  • 会议论文

  • 发表日期：

    2026年

查看全文
  • Vivek Kumar Kash,
  • Atma Ram Sahu

摘要

Coal mine fires present a significant global challenge, primarily due to spontaneous combustion—a slow, low-temperature, flameless process sustained by heat generated when oxygen reacts with the surface of condensed-phase fuel. This phenomenon is particularly prevalent in coal mining operations, leading to mine fires, resource depletion, and environmental harm. ​Understanding and mitigating spontaneous combustion are critical for ensuring safety and efficiency in coal mining. Various experimental studies have been conducted to monitor and provide early warnings of spontaneous combustion. Additionally, research has focused on the oxidation characteristics of coal under different conditions to better predict and prevent spontaneous combustion events. The CPT (Crossing Point Temperature) test method serves as a key tool in evaluating a coal sample's predisposition to spontaneous combustion. The laboratory conducted an assessment of inherent coal properties, including ash content, volatile matter, moisture content, and fixed carbon, expressed as percentages. Subsequently, laboratory tests on the coal samples were conducted to determine the crossing point temperature. This temperature represents the point at which the coal temperature equals that of the reference sample (bath), aiding in comprehending the susceptibility of different coal samples to self-heating. In the experimental analysis, the highest values in proximate analysis were observed for moisture content (21.48%), volatile matter (43.09%), ash content (26.84%), and fixed carbon (44.81%) among the five coal samples studied. Additionally, the crossing point temperature exhibited variations, with the maximum and minimum values recorded at 179.6 °C and 135.4 °C, respectively, for the field-collected samples. These findings contribute valuable insights into the characteristics and vulnerability of coal samples to spontaneous combustion, providing crucial information for developing preventive measures and strategies in the ongoing battle against coal mine fires.