【作者】 梁彤；

【导师】 冠子明； 马素平；

【作者基本信息】 太原理工大学 ， 机械设计及理论， 2003， 硕士

【摘要】 井下粉尘对人体有严重的危害，对正常生产存在巨大的威胁，而综采工作面的产尘量在各个产尘点所占的比例最高，所以如何提高综采工作面粉尘的降尘率问题受到了极大的关注。 本文在分析产尘点具体问题的基础上，研究了喷雾降尘的机理，提出了决定呼吸尘及全尘降尘效率主要参数，在对各个参数进行分别探讨之后，根据雾化效果参数和系统参数之间关系对参数进行匹配，并对各设计参数的雾化效果进行了模拟；设计、改进了喷雾降尘系统的主要机构——喷嘴；对喷嘴的雾化性能进行研究；也探讨了喷雾降尘系统的两相流作用的问题。 本文对综采工作面喷雾降尘系统的主要参数进行了确定。 研究方法采用了理论与实验相结合的方法。对所设计的喷嘴的几个主要雾流参数(速度、体积)进行了试验测定，对实验结果进行了分析；对风流和雾流两相之间的作用规律进行了试验和数据处理，找出了两者之间作用的函数关系。 经过理论和现场使用表明，综采工作面的喷雾降尘系统设计比较合理，取得了预期的降尘效果，大大提高了呼吸性尘和全尘的降尘率，具有较好的推广价值。更多还原

【Abstract】 Mining dusts in the well do great harm to human body, it also threaten the normal working system. The dusts in the long face amount the highest in all the dusted places, so the question howr to increase the dust settling efficiency attracts great attention.Based on the consecrated situation of dusted long faces, the paper do analysis on the spraying dust settling’s mechanism. Based on the decided relations among effects and system parameters which decide the efficiency of breathing dusts settling, the paper match the major parameters.Also, design the main part of -the nozzle, doing research on a special type of nozzle about its spraying features, also thinkabout other main questions of the system.The paper sets the main parameters.The method of theory analysis and test combined is employed in this paper. The tests meters main parameters, and the result was simulated and analyzed. The relation of two-phases was got by tests.Through the theoretical justify and application on the working spot, the conclusion can be drawn that the system ofspraying dust-settling system in long face are designed reasonably. It can get the anticipated results in improving the efficiency of dust-settling both in breathing dust, but also in the total dusts. It is worth popularization.更多还原