1. College of Geoscience and Surveying Engineering,China University of Mining and Technology(Beijing),Beijing　 100083,China;2. Land Resources Bureau of Qianxinan,Nanzhou　 562400,China

通过对北方煤层自燃实地调查和煤炭燃烧发生、发展过程的研究得出:大多已发现的煤炭燃烧经过阴燃→煤烟→明火→(自然或人为)熄灭(或持续)这一自燃—熄灭进程,并形成三大产物系列:自燃煤产物系列、烧变气体及冷凝产物系列和烧变岩石系列。自燃煤产物系列包括烧变煤、煤灰、煤焦油;烧变气体系列包括硫化氢等气体产物、气体冷凝产物(芒硝、硫磺等);烧变矿物及烧变岩系列包括粉灰、烧变矿物及烧变岩。结合前人对烧变岩的认识,根据其烧变程度将烧变岩分为熔合烧变岩、烘烤烧变岩和熔-烤过渡烧变岩。在此基础上,建立了地层-煤层-构造与自燃煤烧变产物剖面模型。

The origin and development of coal burning goes through the basic process of smoldering coal-soot-open-ex- tinguish. Coal combustion products have three series:Coal product series,burning gases and their condensation prod- ucts series and burnt rock series. Coal product series includes burning coal,coal ash,coal tar;burning gas series in- cludes products such as hydrogen sulfide gas,and gas condensate ( glauber’ s salt,sulphur);burn and minerals and rocks series include ash deposits,burnt minerals and burnt rocks. Combining previous research results of burnt rocks, according to its degree of burnt change,burnt rocks can be divided into the melted rocks,baked rocks and melted- baked transition of burnt rocks. Based on the study above,and the model of coal seam spontaneous combustion burnt products profile has been established.

中科院战略先导科技专项基金资助项目(XDA05030200)；中国科学院战略性先导科技专项子课题资助项目(XDA05030201)；

Zhang Yu,Hu Sherong,Peng Jichao,et al. Metamorphic products of coal combustion and its macroscopic models in North China[J]. Jour- nal of China Coal Society,2016,41(7):1798-1805.