CAJ | 학술논문

为探讨环境条件对煤自燃复合指标气体分析法的影响,实验研究了气体流量、升温速率、煤样粒径及氧气浓度对煤自燃过程的影响。研究结果表明,实验条件对复合指标气体仍表现出一定的影响,与单一指标气体分析法相比较,复合指标气体分析法受环境条件波动较小,在煤自燃预测中表现出明显的优势。不同的影响因素对不同的复合指标气体表现出不同的影响,但在整个实验过程中,O2/CO 与 O2/CO2受实验条件影响较小,并在煤自燃过程中表现出明显的指示作用。
위탐토배경조건대매자연복합지표기체분석법적영향,실험연구료기체류량、승온속솔、매양립경급양기농도대매자연과정적영향。연구결과표명,실험조건대복합지표기체잉표현출일정적영향,여단일지표기체분석법상비교,복합지표기체분석법수배경조건파동교소,재매자연예측중표현출명현적우세。불동적영향인소대불동적복합지표기체표현출불동적영향,단재정개실험과정중,O2/CO 여 O2/CO2수실험조건영향교소,병재매자연과정중표현출명현적지시작용。
This study involved investigating the environmental conditions affecting the comG posite index method of gas analysis during coal spontaneous combustion including the effect of gas flow rates,heating rates,particle size and oxygen concentrations during spontaneous comG bustion.The results showed that experimental conditions still affect the gas composite index. However,the composite index method of gas analysis is less affected by environmental conditions compared with the single index method,which showed advantages in predicting spontaneous combustion.Different factors showed different effects on the composite gas index.In the experiG ment,O2/CO and O2/CO2 were relatively stable and showed significant indicators for spontaneG ous combustion.