On the basis of it, the multi-stage mathematical model of the drying, pyrolysis and gas-coal coke reaction in the UCG was established, and the calculation results were analysed and discussed.

• 在此基础上，建立了煤炭地下气化干燥、热解及气-煤焦反应的多阶段数学模型，并对计算结果进行了分析与讨论。