Petrographic analysis of bituminous coal and anthracite - method of preparing coal samples for petrographic analysis 烟煤和无烟煤岩相分析.第2部分:煤样制备方法
The coal quality analysis apparatus measures the count value of ash , water , density and temperature of coal sample with the y - ray sensor , capacitance sensor , pressure sensor and temperature sensor respectively , and inputs the four count values to the computer by pc - 7606 data collection chip 煤质快速分析仪采用射线、电容、压力和温度传感器来测量煤样的灰分、水分、密度和温度计数值，通过pc - 7606数据采集卡把四路计数值传入计算机。
Based on analyses of about 600 coal - seam samples used for " classification of chinese coal " , the range of mean maximum reflectance of vitrinite ( r ( superscript o subscript max ) , % ) of different classes of bituminous coal was presented and the correspondence between them was discussed 摘要运用制定《中国煤炭分类》国家标准所依据的近600个烟煤煤层煤样实测数据，分析了中国不同煤种烟煤镜质组平均最大反射率的分布范围，探讨了烟煤镜质组平均最大反射率与中国煤分类系统之间的关系。
This flexion of graph can be defined as criterion of coal ignition character under excessive oxygen supply . based on viewpoints of coal ignition , we put forward assumption aiming at ignition character of coal with excessive oxygen . in this thesis , with comparison of average temperature increase among eleven kinds of coal , the following are obtained : homogeneous ignition happens when coal has higher volatile matter and there is a approximative direct - ratio relationship between temperature hoist before flexion and content of volatile matter ; on the other side , heterogeneous ignition occurs for the coal with lower volatile matter content because of collective influence of volatile matter and fixed carbon combustion , and one - to - one relationship between temperature increase before flexion and content of volatile matter does not exit 以煤着火性质研究的观点为基础，对煤在过氧条件下的着火性质提出假设，通过11种标准煤样在过氧条件下燃烧实验，对比了拐点前后平均温升与煤样成分的关系，证实了挥发分含量较高的煤在过氧条件下发生均相着火燃烧，拐点前后量热系统的温升分别与挥发分和固定炭的含量成近似正比的关系；而挥发分含量较低的煤在过氧条件下发生非均相着火燃烧，拐点之前量热系统的温升由于受到挥发分和固定炭同时燃烧的影响，因而不存在温升与挥发分含量之间单一的对应关系。
The authors have observed the progress of deformation and destruction of coal bodies in the experiment , carried out the macroscopic and microscopic research of the destruction progress of coal samples under load by means of servo electro - hydraulic loading test and electromagnetic radiation and audio emission monitoring , analyzed the cracking rate of coal samples under different situation , investigated the formation and development of cracking by use of fracture and elasticity mechanics , and thus established a sound experimental basis for the prediction by using gray classification 摘要进行了煤体变形破坏过程实验，利用电液压伺服加载试验、电磁辐射和声发射监测手段，从宏观、细观、微观三个方面对煤样受载破裂过程进行试验研究，分析煤样的裂隙发展速度及其所处的不同的状态，并参照目前的预测方法提出了煤与瓦斯突出危险状态灰色分类方法。
In view of safety the elementary and industrial analyses of coal samples were conducted , a systematic experiment was performed to investigate the minimum ignition temperature ( mit ) of zhangcun and changcun meager - lean coal in a g - g furnace , and the effect of dust concentration , spray - air pressure and dust particle size on the mit was analyzed 摘要从工业安全角度出发，对实验煤样进行了元素分析和工业分析，在高德伯儿格格瑞瓦尔德炉中对潞安常村、漳村贫瘦煤的最低着火温度进行了比较全面、系统的实验研究，探讨了煤粉质量浓度、喷吹压力以及粒度对最低着火点的影响。
