摘要
为研究林南仓矿煤的自燃氧化特性,从不同煤层、不同采区采取典型煤样8个,分别进行了煤的自燃倾向性和煤升温模拟氧化实验。实验结果显示,该矿8个煤样分别为Ⅰ类容易自燃和Ⅱ类自燃,自燃危险性较高。该矿煤在常温下就具有很强的氧化能力,并产生CO气体。根据煤低温氧化过程产生的气体量以及气体浓度的变化规律,将自燃氧化过程划分为缓慢氧化、加速氧化和激烈氧化3个阶段,并确定了温度范围,为指导煤层自燃火灾防治提供了依据。
In order to study Spontaneous combustion oxidation characteristics of coal in Linnancang Mine, 8 types of representative coal samples were got from different coal seam, different mining area, spontaneous combustion tendency and Temperature simuhtian oxidation of coal were tested. The experiment result showed that the 8 coal samples belongs to Ⅰ chss easily spontaneous combustion and Ⅱ class spontaneous combustion, with high spontaneous combustion risk. Coal in the mine is with strong oxidizing capacity, along with CO. Based on gas flow from coal low temperature oxidation process and changing rule of the gas concentration, spontaneous combustion oxidiation is divided to slow oxidation, accelerating oxidation and fierce oxidation, temperature range was settled, which provided reference for guiding prevention and control of coal seam spontaneous combustion fire disaster.
出处
《煤炭与化工》
CAS
2015年第8期115-117,120,共4页
Coal and Chemical Industry
基金
国家自然科学基金项目(51474086)
河北省自然科学基金项目(E2014209138)
关键词
自燃氧化特性
自燃倾向性
升温模拟氧化实验
自燃氧化阶段
spontaneous combustion oxidation characteristics
spontaneous combustion tendency
temperature simulation experiment of oxidation
spontaneous combustion oxidation phase
