Study on the Modified Polyvinyl Alcohol Oxygen-insulating Material Preventing Coal Stockpile Spontaneous Combustion

摘要：

In order to study the modified polyvinyl alcohol (PVA) material preventing spontaneous combustion of the coal stockpiles, the modifiers (Al and A2) were used to modify the PVA which is an excellent oxygeninsulating material. Then the structure, swelling degree, viscosity, mechanical characteristics, and oxygen-insulating characteristics of the modified PVA material were examined separately. The results showed that the plastic of modified PVA material was highly improved, and swelling degree was lower. Oxygen concentration in coal pile could be decreased from 21％ to 3％. The rate of coal oxidation and selfheating were weakened. So spontaneous combustion of coal stockpile could be prevented effectively by modified PVA material.

关键词： Polyvinyl alcohol Modify Oxygen-insulating material Spontaneous combustion of coal

作者: MENG Xianliang CHU Ruizhi WU Guoguang WANG Zhihua ZHU Jiamei CHEN Jing

作者单位: School of Chemical Engineering and Technology, China University of Mining & Technology, Xuzhou, Jiangsu 221008, China

会议类型: 国际会议

会议名称: 2010 International Conference on Mine Hazards Prevention and Control(第二届矿山灾害预防与控制国际学术会议 ICMHPC)

会议地点: 青岛

会议语种:英文

页码: 238-243

在线出版日期: 2010-10-15（万方平台首次上网日期，不代表论文的发表时间）