In recent years, there have been a series of coal mine accidents in China. According to statistics released by the Safety Administration, there were 256 coal mine accidents in China in 2015 alone, resulting in more th...In recent years, there have been a series of coal mine accidents in China. According to statistics released by the Safety Administration, there were 256 coal mine accidents in China in 2015 alone, resulting in more than 420 deaths. This data is enough to show that China has a big problem in safety management, at present, we must pay attention to the relevant management work as soon as possible. It is the most direct and effective method to strengthen mine safety management and do well in mine ventilation. The advantage of doing so is: the oxygen concentration in the mine is increased, and the harmful gas concentration will be significantly reduced accordingly. Based on this, this paper takes the ventilation of coal mine as the starting point of the study, and systematically discusses the ventilation management measures, aiming at helping China's coal mining industry to carry out safety management work better from the theoretical perspective.展开更多
Due to the particularity of coal mine production, many aspects of coal mine production may have serious safety risks. If there is no corresponding safety protection, it is easy to cause various production accidents. A...Due to the particularity of coal mine production, many aspects of coal mine production may have serious safety risks. If there is no corresponding safety protection, it is easy to cause various production accidents. According to relevant production experience, harmful gas accumulation, gas explosion, coal dust explosion, fire, etc., are common accidents in coal mine production. After these accidents, mining companies will face the risk of correction and suspension of production. Therefore, if coal mining enterprises want to maintain sustainable development, they must do a good job of ventilation and defense in the long-term development process, eliminate and reduce the risk factors in coal mine production through appropriate safety management and protection, and create a relative working environment.展开更多
Mine dust is one of the main hazards in underground longwall mines worldwide.In order to solve the mine dust problem,a significant number of studies have been carried out regarding longwall mine dust control,both in C...Mine dust is one of the main hazards in underground longwall mines worldwide.In order to solve the mine dust problem,a significant number of studies have been carried out regarding longwall mine dust control,both in China and Australia.This paper presents a comparative study of dust control practices in Chinese and Australian longwall mines,with particular references to statutory limits,dust monitoring methods and dust management practices,followed by a brief discussion on the research status of longwall mine dust control in both countries.The study shows that water infusion,face ventilation controls,water sprays,and deep and wet cutting in longwall shearer operations are commonly practiced in almost all underground longwall mines and that both Chinese and Australian longwall mine dust control practices have their own advantages and disadvantages.It is concluded that there is a need for further development and innovative design of more effective dust mitigation products or systems despite the development of various dust control technologies.Based on the examinations and discussions,the authors have made some recommendations for further research and development in dust control in longwall mines.It is hoped that this comparative study will provide beneficial guidance for scholars and engineers who are engaging in longwall mine dust control research and practice.展开更多
文摘In recent years, there have been a series of coal mine accidents in China. According to statistics released by the Safety Administration, there were 256 coal mine accidents in China in 2015 alone, resulting in more than 420 deaths. This data is enough to show that China has a big problem in safety management, at present, we must pay attention to the relevant management work as soon as possible. It is the most direct and effective method to strengthen mine safety management and do well in mine ventilation. The advantage of doing so is: the oxygen concentration in the mine is increased, and the harmful gas concentration will be significantly reduced accordingly. Based on this, this paper takes the ventilation of coal mine as the starting point of the study, and systematically discusses the ventilation management measures, aiming at helping China's coal mining industry to carry out safety management work better from the theoretical perspective.
文摘Due to the particularity of coal mine production, many aspects of coal mine production may have serious safety risks. If there is no corresponding safety protection, it is easy to cause various production accidents. According to relevant production experience, harmful gas accumulation, gas explosion, coal dust explosion, fire, etc., are common accidents in coal mine production. After these accidents, mining companies will face the risk of correction and suspension of production. Therefore, if coal mining enterprises want to maintain sustainable development, they must do a good job of ventilation and defense in the long-term development process, eliminate and reduce the risk factors in coal mine production through appropriate safety management and protection, and create a relative working environment.
基金supported by the Program for New Century Excellent Talents in University of China(No.NCET-10-0770)the financial support provided by the China Scholarship Council(Nos.201306425002&201406425048)the University of Wollongong to pursue study at the University of Wollongong as undergraduate visiting students
文摘Mine dust is one of the main hazards in underground longwall mines worldwide.In order to solve the mine dust problem,a significant number of studies have been carried out regarding longwall mine dust control,both in China and Australia.This paper presents a comparative study of dust control practices in Chinese and Australian longwall mines,with particular references to statutory limits,dust monitoring methods and dust management practices,followed by a brief discussion on the research status of longwall mine dust control in both countries.The study shows that water infusion,face ventilation controls,water sprays,and deep and wet cutting in longwall shearer operations are commonly practiced in almost all underground longwall mines and that both Chinese and Australian longwall mine dust control practices have their own advantages and disadvantages.It is concluded that there is a need for further development and innovative design of more effective dust mitigation products or systems despite the development of various dust control technologies.Based on the examinations and discussions,the authors have made some recommendations for further research and development in dust control in longwall mines.It is hoped that this comparative study will provide beneficial guidance for scholars and engineers who are engaging in longwall mine dust control research and practice.
