原料配比对相似材料放散初速度影响的实验研究  

Experimental study on influence of raw material ratio on initial diffusion speed of similar materials

作　　者：朱墨然 王麒翔[1,2] Zhu Moran;Wang Qixiang(State Key Laboratory of Gas Detecting,Preventing and Emergency Controlling,Chongqing 400037,China;China Coal Technology Engineering Group Chongqing Research Institute,Chongqing 400037,China)

机构地区：[1]瓦斯灾害监控与应急技术国家重点实验室,重庆400037 [2]中煤科工集团重庆研究院有限公司,重庆400037

出　　处：《能源与环保》2020年第9期143-146,152,共5页CHINA ENERGY AND ENVIRONMENTAL PROTECTION

摘　　要：煤与瓦斯突出相似材料是由骨料、辅料、黏结剂混合后在一定成型压力下制作而成,原料配比对相似材料的放散初速度影响较大。为研究原料配比对相似材料放散初速度的影响,通过正交实验设计,选取水泥、砂子和成型压力3个因素作为研究对象,分别测定不同配比条件下相似材料在吸附CH4和CO2情况下的放散初速度。实验结果表明:对相似材料放散初速度影响较大的因素为水泥和砂子的添加比例,随着水泥和砂子比例的增大,相似材料的放散初速度逐渐减小;相似材料吸附CO2比吸附CH4时的放散初速度高约30%,成型压力对相似材料放散初速度的影响较小。实验分析结果对后续制作相似材料具有重要参考意义。Similar materials for coal and gas outburst are made by mixing aggregate,auxiliary materials and binder under certain molding pressure.The ratio of raw materials has a great influence on the initial velocity of similar materials.In order to study the effect of raw material ratio on the initial velocity of similar materials,by designing orthogonal experiments,taking cement ratio,sand ratio and molding pressure as influencing factors,the initial velocities of similar materials in the case of adsorption of CH4 and CO2 were tested.The experimental results showed that the ratio of cement and sand has a greater influence on the initial velocity of similar materials.The initial velocity of emission decreases with the increase of the proportion of cement and sand.The CO2 adsorption rate of similar materials is about 30%higher than that of CH4 molding pressure has little effect on the initial velocity of similar materials.The experimental results provide an important reference for the production of similar materials.

关 键 词：煤与瓦斯突出 相似材料 原料配比 放散初速度 

分 类 号：TD712[矿业工程—矿井通风与安全]