Gob-side entry retaining (GER) was tested and applied in the UK, Germany, Poland, and Russia in the past few decades, while GER is widely applied in coal mining in China [1,2,3,4,5,6,7].GER is a safe, green and efficient mining technology with advantages including reduced excavation rates, relief of the rapid movement of mining activities, …
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In order to improve the effectiveness of coal mine gas control and enhance the level of coal mine safety production, the application of a microseismic monitoring system and hydraulic fracturing technology in coal mines was studied. Applying hydraulic fracturing technology to coal mine gas treatment, firstly, the geological structure and …
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The continuous miner technology (CMT) is being adopted extensively in underground coal mines of India as mass production technology. This technology potentially eliminates the two-unit operating, namely the drilling and blasting. This elimination helps for better strata control and avoids the drillers working in unsafe …
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Burden and Strategies for Control – Disease. Shale gas;; Strength. Soil water salinity can affect soil physical properties by causing fine particles to bind. We compared age-adjusted mortality. Steinzor et. …
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Directional drilling trajectory control technology is one of the key technologies to realize automation and intelligence of underground tunnel drilling in coal mines. The construction of directional drilling in underground coal mines mainly relies on manual observation of measurement-while-drilling parameters to control the drilling trajectory, which is highly …
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Conveyor belts are widely used in ore transportation in large-scale mines for their long transportation range, high safety, and strong economic applicability. Coal mine belt conveyors are not only traditional, simple mechanical conveying devices but also automatic control system operating devices that integrate safety, stability, and low …
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In the process of coal mining, prevention and control of water hazard is essential. It is the precondition for water hazard control to detect and determine the distribution of underground water-conducting channels. In urban environments, traditional methods such as active source seismic exploration and transient electromagnetic …
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Lightweight monitoring and control system for coal mine ... We also implement three different scenarios for Web-based, lightweight remote monitoring and …
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Coal is the major source of power in India and world over. Coal mining is an essential industry which has a major role in the economic development of the country. Most major mining activities contribute directly or indirectly to air pollution. Coal dust is a major air pollutant which affects the personal working in the mines and also people residing in …
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Control Fire in Undergound Coal Mines S. K. Ray* and R. P. Singh, Central Mining Research Institute, Barwa Road, Dhanbad, Jharkhand 826 001, India Published online: 6 October 2007 Abstract. Coal mine fires cause serious threat to the property and human lives. Out-break of fire may be dealt with advanced fire suppression techniques like ...
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The refuge chamber is an important part of the emergency refuge system in coal mine. This paper mainly introduced the design ideas of underground layout, structure, six systems of disaster ...
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The diversity of coal mining conditions in China, as well as the limitations imposed by historical mining levels, have resulted in a large amount of residual coal resources 4,32,33,34.The safe and ...
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A coal mine safety system is implemented for this project by using an IP address as a data transmission medium. The device is used to monitor a variety of parameters inside coal …
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Prabhu et al. "IOT Based Coal Mining Safety for Workers using Arduino", Proposed a system where Gas sensor modules are used in the coal mine safety system, fire …
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Mine inflow incidents that impact normal production activities, pose threats to mine safety, or result in partial or complete flooding of the mine are collectively termed 'mine water hazards' (Gui & Lin, 2016; Wu et al., 2022).Not only do they severely disrupt the regular construction and production activities within the mine, but they also …
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The fluid supply system of full-mechanized coal mining face consists of emulsion pump station, accumulator station, fuel tank, fluid supply and return pipeline and its accessories, etc.
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The mining environment of thin coal seam working faces is generally harsh, the labor intensity is high, and the production efficiency is low. Previous studies have shown that thin coal seam mining finds it difficult to follow machines, does not have complete sets of equipment, has a low degree of automation, and has difficult system co-control, …
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The main goal of coal quality control in lignite mines is to supply coal to power plants within certain quality constraints. Coal properties can affect the efficiency, reliability, and ...
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Abstract. According to actual situation of coal mine water disasters and the expert system research survey, the author has proposed the overall structure of the …
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This study considered the role of coal as China's basic energy source and examines the development of the coal industry. We focused on the intelligent development of coal mines, and introduced the "Chinese mode" of intelligent mining in underground coal mines, which uses complete sets of technical equipment to propose classification …
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With the rapid entry into deep mining of coal mines in China, the impact composite dynamic disaster of thick and hard layer mines and mine earthquakes has increasingly become a major disaster that ...
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Role of Sensor-Based Systems in Mining Hazard Mitigation. There are many techniques that companies and organizations are employing to mitigate the dangers associated with coal mining. …
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The paper reviews system requirenents and systems currently developed i.e. :- Adjacent supJX>rt control Bi-directional adjacent control Sequential control Electra-hydraulic push button control Full remote operation Also exrumines auxiliary systems Contact advance High pressure setting Guaranteed set Steep serum systems Keywords.
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The severe floor heave in gob-side entry retaining is the major restriction factor of the wide application of pillarless mining thin coal seams. Reinforcement and stress-relief floor heave control methods are the most promising. However, in practice, floor restoration is widely used. Therefore, floor heave control technology in gob-side entry …
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Effective prevention and control of water hazards in China's coal mines require that several key issues be addressed. The key issues discussed in this paper are the complex and variable water inrush types in mines, uncertainties in calculation of mine inflow, and the primary mechanism of water hazards resulting from mining-induced …
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In coal mines, poor ventilation exposes workers to toxic gases, heat, and smoke, which can lead to sickness, injury, and death. IoT based Coal mine safety monitoring and alerting …
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Water inrush hazards in coal mines pose a great risk to the safety of miners and coal production. We studied journal articles on coal mine water inrush prevention and control from 2000 to March 2019 using data from the Web of Science Core Collection V.5.32 database. We used CiteSpace V.5.3.R11 software to analyse the literature, …
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A multi-tiered solution comprising engineering controls, administrative processes, and personal protective equipment (PPE) is needed to limit this risk. Let's look at several significant dust-control measures in mines: Engineering controls These measures aim to prevent or minimize dust at …
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[1] Shuren Pan 2006 Establishment of imprecise reasoning model for coal mine water hazard control Energy Technology and Management 2 Google Scholar [2] Guangqing Liu, Xulei Yu, Fenghai Li etc. 2001 Expert system for mine roof water hazard prediction and control The Journal of Hazard and Control 3 Google Scholar [3] Weitao Liu 2001 …
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Sources of emissions include seepage from coal seams exposed in surface or open pit mines; drainage systems used to reduce the methane content of coal deposits; ventilation systems (where methane is extracted and vented from underground coal mines as a safety measure); post‐mining activities such as processing, storage and transport when ...
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In this study, a groundwater management model of a coal mining area is developed to optimize mine drainage, water supply and environmental protection. The …
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SUSTAINABILITY IN COAL MINES 89 Annual Report | 2022-23 4.2 Water Quality Management In Indian coal mines, the mine water is often of good quality. The only criterion for which sedimentation, a physical process, is used to treat, is suspended solids. The suspended solids are settled in the mine sump before being discharged. High …
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Coal mining - Underground mining: In underground coal mining, the working environment is completely enclosed by the geologic medium, which consists of the coal seam and the overlying and underlying strata. Access to the coal seam is gained by suitable openings from the surface, and a network of roadways driven in the seam then …
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Contour mining is a common form of Appalachian surface mining that extracts coal from outcrops along the sides of steep hills ... of 1977 established federal control over coal-mine reclamation with a federal-state oversight system. State agencies can implement SMCRA under the oversight of a federal agency, the USDI Office of …
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