陕西煤炭2025，Vol.44Issue(10)：49-54,6.DOI:10.20120/j.cnki.issn.1671-749x.2025.1009
煤层原生CO气体解吸特征及原位消解技术研究
Characteristics of primary CO desorption from coal seams and in-situ eliminating techniques
孙振翔 1于志金 2黄德威2
作者信息
- 1. 黑龙江龙煤双鸭山矿业有限责任公司,黑龙江双鸭山 155100
- 2. 西安科技大学安全科学与工程学院,陕西西安 710054
- 折叠
摘要
Abstract
CO is the most commonly used indicator gas for early prediction of coal spontaneous combustion,but its source di-versity often brings difficulties to field practice.In order to grasp the adsorption and desorption characteristics of primary CO gas in coal seam,clarify the source of CO in working face and take effective control technology,taking 8# coal seam and 10#coal seam in Xin'an Coal Mine as the background,the occurrence characteristics of primary CO in coal seam were studied by CO desorption experiment and temperature programmed experiment,and the inhibition law of 2％SA+0.5％PCC+1％GDL high water capsule inhibitor material on CO gas in low temperature oxidation of coal was analyzed.The results show that:at room temperature,8# and 10# coal seams have primary CO precipitation,and the average amount of CO precipitation is 0.048 mL/g and 0.054 mL/g,respectively.The temperature programmed experiment found that the CO gas in the work-ing face is mainly derived from the desorption of primary CO and the low temperature oxidation of some coal.The high water capsule material can better inhibit the production of CO in coal seam.The CO inhibition rate of high water capsule on 8#coal seam and 10# coal seam is the highest at 40 ℃,which is 54％and 47％respectively.Therefore,the production of pri-mary CO can be inhibited by in-situ spraying of high-water capsule materials,thereby improving the prediction accuracy of spontaneous combustion.关键词
原生CO/煤自燃/解吸/原位消解/高水胶囊Key words
primary CO/coal spontaneous combustion/desorption/in-situ elimination/high water capsule分类
矿业与冶金引用本文复制引用
孙振翔,于志金,黄德威..煤层原生CO气体解吸特征及原位消解技术研究[J].陕西煤炭,2025,44(10):49-54,6.
