Excavation of coal mine dust control and research.doc

Excavation of coal mine dust control and research Abstract: For a long time, dust control is always one of mine safety problems. At present, with the deepening of China’s energy strategy, modern mine productivity has been greatly improved, but the resulting dust problems are more serious, not only for mine physical and mental health workers. silica dust caused by the disease, but also due to the accumulation of the lower explosion limit, bringing the risk of explosion. So the world have developed strict standards for dust concentration, in order to protect workers health and mine safety. Learn coal Dust causes, how to take effective measures to control the generation of dust and dust removal technology is mine what’s the key to sustainable development, but also to ensure that the mine workers of modern health issues at stake. Keywords:: coal dust, driving, dust control In the mechanization of mining operations, transportation, reproduced the process, will have a lot of dust, serious harm, the current anti-dust technology is far from meeting the growing needs of the dust of damage control, to meet the mine development, the establishment of safe and clean working environment to achieve dust control, dust control technology heading face of research results, that the next step of development of dust control techniques. First, the causes and harmful dust generated (A) the production of coal dust In the coal mining process, such as drilling, blasting, tunneling and mining operations, roof management. Coal shipments and other links will have a lot of dust, and different mines as coal, rock geological conditions and the different physical properties, mining way, practices, and mechanical ventilation the different levels of dust generation is not quite the same situation, the higher the degree of mechanized mining face, the greater the corresponding output of coal dust. (B) of the coal dust hazard Dust, generally refers to the process of mineral