煤矿安全2018，Vol.49Issue(1)：57-60,4.DOI:10.13347/j.cnki.mkaq.2018.01.015
新疆弱粘煤自燃氧化特性试验研究
Experimental Study on Spontaneous Combustion Oxidation Characteristics of Xinjiang Weakly Caking Coal
王坤 1宋双林 1师吉林 1王大强 1赵亚明 1陈庆丰1
作者信息
- 1. 煤科集团沈阳研究院有限公司,辽宁抚顺113122
- 折叠
摘要
Abstract
In order to study the early prediction and forecast of the spontaneous combustion risk of upper stratified old coal area in steeply inclined and extra-thick coal seams,taking the fresh coal samples (initial oxidation) and oxidized coal samples (secondary oxidation) of weakly cohesive coal in Wudong Coal Mine as the research object.The characteristics of secondary oxidation of spontaneous combustion of weakly cohesive coal and the micro-variation characteristics of pre-oxidized coal samples were studied.In this experiment,the release law of gaseous products was studied by using a programmed temperature-rising device.The exothermic characteristics of initial and secondary oxidized coal samples were measured by DSC differential scanning calorimetry and the functional groups of coal samples were pre-oxidized by infrared spectroscopy at different temperatures.The results showed that the concentration of oxygen,the rate of generation and the exothermic intensity of secondary coal were lower than that of initial oxidation.With the increase of pre-oxidation temperature,the content of oxygen-containing functional groups gradually increased,the content of aromatic hydrocarbons decreased,aromatic ring content was basically unchanged.关键词
初次氧化/二次氧化/程序升温/预氧化/自燃特性Key words
initial oxidation/secondary oxidation/temperature programming/pre-oxidation/spontaneous combustion characters分类
矿业与冶金引用本文复制引用
王坤,宋双林,师吉林,王大强,赵亚明,陈庆丰..新疆弱粘煤自燃氧化特性试验研究[J].煤矿安全,2018,49(1):57-60,4.
