一种防治矿井火灾的绿色环保新材料的研制

Development of a Non-Pollution Material of Environmental Protection for Mine Fire Control

我国西北部地区地表缺土少水,采用常规的黄泥注浆防灭火技术面临困难.针对这些矿区的自然条件,作者开发了一种防治矿井火灾制浆用的环保经济型稠化添加剂.该材料由天然高分子材料制成,无毒无味无害,不污染环境,且使用成本低廉.利用该材料的胶凝性可以制成凝胶,利用其在水中形成的三维网状结构和高黏度特性可以悬浮固相物质制成复合浆体.本文介绍了采用该材料对神东矿区山砂加以利用制成防灭火砂浆的试验.实验研究表明:该稠化添加剂具有很强的悬砂能力并降低了对管道的磨损和流动阻力,为我国西北部缺水少土地区的矿井火灾绿色治理提供了一种新的技术手段,具有重要的推广应用前景.

There is a lack of soil and water on ground surface in northwest area of China, which makes it much difficult to control mine fires by using the mud grout. According to current natural conditions of that area, a thickener for mine fire control is developed that is of environmental protection and economy. The agent is made of natural high molecular substances with no poison and tastes and is not harmful to environment. In addition, the agent can be made into gel due to its gelatinization and into composite slurry due to its three-dimensional network structure and high viscosity in water that can suspend solid particles. The experiments were conducted to make the agent and sand from Shendong mining area into slurry for mine fire control. The results indicate that the agent has a higher ability to suspend sand and reduce the surface wear of ducts and the flowing resistance. Therefore, it is a new technique for mine fire control in the northwest areas of China and worth of widespread application.