祁南矿10114工作面煤层注水防尘效果研究
发布时间：2018-08-14 09:09
【摘要】：矿井粉尘的防治对于煤矿的安全生产有着极其重要的意义。矿井的粉尘灾害一直是困扰煤矿安全生产的重要的难题。由于吸入粉尘所引起的尘肺病也成为影响煤矿工人身心健康的一大隐患。在这样严峻的形式下,加强对粉尘灾害的防治力度,努力减小粉尘灾害对煤矿安全生产和工人身心健康的危害已经成为势在必行的举措。 煤层注水是防治矿井粉尘灾害的行之有效的方法。它预先在煤体内打注水钻孔,在将压力水引入钻孔内,使得煤体事先得到湿润,并且改变了煤体的物理力学性质,使采动时煤体原来的脆性破碎变成塑性变形,从源头上控制了煤尘的产生。 本文通过对煤层注水机理的研究、煤层注水的降尘原理的研究以及影响煤层注水相关因素的研究,并结合淮北矿业集团祁南矿10114工作面的实际注水情况,对煤层注水进行了系统的研究。 本文在理论分析的指导下,对煤层注水前相关基础参数的测定、煤层注水参数的确定以及注水实施的相关措施进行了详细的阐述。通过煤层注水措施实施前后的工作面粉尘浓度的对比,可以很明显的发现煤层注水可以有效的控制工作面的粉尘浓度,起到非常好的降尘效果。同时,对煤矿的安全生产也有很重要的理论和实践意义。
[Abstract]:The prevention and cure of mine dust is of great significance to the safety production of coal mine. Mine dust disaster has been an important problem puzzling coal mine safety production. Pneumoconiosis caused by dust inhalation has also become a hidden danger to coal miners' physical and mental health. In such a severe situation, it is imperative to strengthen the prevention and control of dust disasters and to reduce the harm of dust disasters to the safety of coal mine production and workers' physical and mental health. Coal seam water injection is an effective method to prevent mine dust disaster. It pre-drilled water injection into the coal body, introduced pressure water into the borehole, made the coal body wetted in advance, and changed the physical and mechanical properties of the coal body, so that the original brittle breakage of the coal body became plastic deformation during mining. The coal dust was controlled from the source. In this paper, the mechanism of coal seam water injection, the dust control principle of coal seam water injection and the related factors affecting coal seam water injection are studied, and the actual water injection situation of 10114 working face of Qinan Coal Mine of Huaibei Mining Group is combined. A systematic study of coal seam water injection is carried out. Under the guidance of theoretical analysis, this paper expounds in detail the determination of basic parameters before water injection in coal seam, the determination of water injection parameters in coal seam and the relevant measures for water injection. Through the coal seam water injection measures before and after the dust concentration contrast, it can be found that coal seam injection can effectively control the face dust concentration, play a very good dust reduction effect. At the same time, the coal mine safety production also has the very important theory and the practice significance.
【学位授予单位】：安徽理工大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TD714.4
本文编号：2182381
[Abstract]:The prevention and cure of mine dust is of great significance to the safety production of coal mine. Mine dust disaster has been an important problem puzzling coal mine safety production. Pneumoconiosis caused by dust inhalation has also become a hidden danger to coal miners' physical and mental health. In such a severe situation, it is imperative to strengthen the prevention and control of dust disasters and to reduce the harm of dust disasters to the safety of coal mine production and workers' physical and mental health. Coal seam water injection is an effective method to prevent mine dust disaster. It pre-drilled water injection into the coal body, introduced pressure water into the borehole, made the coal body wetted in advance, and changed the physical and mechanical properties of the coal body, so that the original brittle breakage of the coal body became plastic deformation during mining. The coal dust was controlled from the source. In this paper, the mechanism of coal seam water injection, the dust control principle of coal seam water injection and the related factors affecting coal seam water injection are studied, and the actual water injection situation of 10114 working face of Qinan Coal Mine of Huaibei Mining Group is combined. A systematic study of coal seam water injection is carried out. Under the guidance of theoretical analysis, this paper expounds in detail the determination of basic parameters before water injection in coal seam, the determination of water injection parameters in coal seam and the relevant measures for water injection. Through the coal seam water injection measures before and after the dust concentration contrast, it can be found that coal seam injection can effectively control the face dust concentration, play a very good dust reduction effect. At the same time, the coal mine safety production also has the very important theory and the practice significance.
【学位授予单位】：安徽理工大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TD714.4
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