Примеры использования Underground coal mines на Английском языке и их переводы на Русский язык
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Underground coal mines are thoroughly inspected at least four times annually by MSHA inspectors.
In 1966, Congress extended coverage of the 1952 Coal Act to all underground coal mines.
Professional methane management at underground coal mines can achieve three primary benefits.
Curricula will be based on the practices of advanced underground coal mines.
Each year underground coal mines throughout the world emit over 16 Bm3 of methane from their ventilation systems.
Coal prices were liberalized, State subsidies sharply cut, several underground coal mines closed down.
As underground coal mines are confined, ignition of a substantial accumulation of methane invariably leads to an explosion.
A representative of Serbia provided an overview ofthe developments in and challenges faced by the methane-rich underground coal mines of Serbia.
Abandoned underground coal mines also generate methane, and can vent enough gas to make recovery a profitable alternative.
Objectives of Mine Gas Control The primary aim of gas control systems is to prevent explosions andasphyxiation risks in underground coal mines.
With the exception of China and India, the majority of active andabandoned gassy underground coal mines are located in developed or transition economies.
It is intended to provide broad guidance as to what constitutes"best practices" for methane drainage,recovery and utilization at underground coal mines.
Underground coal mines are one of the largest sources of anthropogenic methane emissions, but these emissions can be substantially reduced through implementation of best practices.
The USA-based company MEGTEC is pursuing full-scale demonstrations of its TFRR technology on VAM at underground coal mines in both Australia and United States.
While methane explosions in underground coal mines are very rare occurrences in many coal mining countries, they still cause thousands of mine fatalities and injuries every year.
Guidance is urgently needed to help governments swiftly implement safer working practices to reduce the hazard posed by methane in underground coal mines.
Bleeder shaft A type of ventilation shaft employed at some underground coal mines to increase ventilation at an individual longwall panel or groups of longwall panels.
The International Classification of Dynamic Phenomena in Mines(1994) helps managers and researchers in the mine safety aspects to forecast andprevent the gas dynamic phenomena in underground coal mines.
Emissions of methane, an important GHG, from underground coal mines can be significantly reduced by utilising the drained gas, flaring the gas that cannot be used, and mitigating VAM emissions by oxidation.
Although the concentration of methane contained in these ventilation air flows is quite low(typically less than 1%), the volume of air that the systems move into, through, andout of the mine is so large that ventilation systems constitute the single largest source of methane release to the atmosphere from underground coal mines.
Underground coal mines are a significant source of anthropogenic methane emissions(about 6% of human-related global methane), but these emissions can be substantially reduced through implementation of best practices.
The MINER Act amended the Mine Act to require mine-specific emergency response plans in underground coal mines; added new regulations regarding mine rescue teams and sealing of abandoned areas; required prompt notification of mine accidents; and enhanced civil penalties.
UNECE additionally cooperated with the International Labour Organization(ILO) in the activities of the UNECE Task Force on the Economic Benefits of Improving Mine Safety through Extraction and Use of Coal Mine Methane andon the consideration and review of a draft ILO Code of Practice on Safety and Health in Underground Coal Mines.
Prediction of Underground Methane Releases Gas flows into underground coal mines under normal, steady-state conditions are relatively predictable in certain geological and mining conditions, although there is significant variation from country to country.
Yet the global coal industry still lacks a set of recommended principles and standards to guide mine operators,regulators, government officials, and technical professionals in more effectively managing methane problems in underground coal mines, especially those in emerging economies.
The following facilitieswill be closed soon: the Mlamolovo and Minyor coal mines of the Bobov Dol Company, the underground coal mines of the Pernik company, Pirin coal mine, Aheloy coal mine, Minyor and Smirnenski coal mines of the Marbas company, Tvardica and Sheshkingrad coal mines of the Balkanbas company and the Antracit coal mine. .
The two also discussed the modernisation of another Resavica venture, the Soko underground coal mine for which the Serbian budget foresees a 10 million euros investment this year and another 20 million euros projected for the next two years.
Buildings and structures of surface and underground coal mine complexes.
Figure 1.1 Schematic of an Underground Coal Mine Drainage System and Surface Facilities for Energy Recovery and Abatement of CMM.
Topic:"Scientific principles of organizational systems of underground conveyor transport of coal mines with a branched structure.