耗氧速度是评价煤自燃性的重要指标。
Oxygen consumption rate is a very important index to evaluate nature of spontaneous combustion of coal.
提出了实际条件下煤体放热强度和耗氧速度的计算方法，并通过实验得出了煤体粒度影响函数。
The calculation method of oxygen consumption rate and heat liberation intensity is put forward on actual condition, and influence function of particle size is gained by experiment.
讨论了指标气体的选择，分析了CO, CO2等气体浓度随温度的变化规律，得到了耗氧速度与煤温及煤体粒度的关系。
The selection of index gases was discussed. The law of concentration change for co, CO2 etc and the relation of consuming oxygen velocity to coal temperature and size were analyzed.
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