Power Consumption Control at Coal Mining Sites | SpringerLink
The article presents the results of research of the energy efficiency of mining operations at coal mines, proposes a system of indicators for evaluating the …
Power factor and power factor control alternatives for mines
Power factor and power factor control alternatives for mines | Semantic Scholar. DOI: 10.1109/IAS.1988.25213. Corpus ID: 18376590. Power factor and power factor …
Characteristics of Water Hazards in China's Coal Mines: A …
China's coal mines face very complicated hydrogeological conditions and are affected by many complex water hazards. Based on the condition of the coal seams and an analysis of regional hydrogeological and geological conditions, China's coal-producing regions have been divided into six major hazard regions. This paper …
Application of ventilation simulation to spontaneous combustion control
Currently the coal mine is extracting two coal seams, namely 1 −2 coal seam and 2 −2 coal seam. 3 −1 coal seam is on standby. Fig. 3 shows the overall layout of Bulianta coal mine. The whole mine is divided into five sections with several longall panels within each of section. 1 −2 coal seam and 2 −2 coal seam has been totally extracted in …
Strata Control in Mining: A Study of Strata Control in an …
Strata control and monitoring plan is a very critical and important factor to study in an underground mine. ii. The factor of safety determined using rock load and support density is quite good. ... A Study of Strata Control in An …
Global methane emissions from coal mining to continue …
The gas content of the current global underground hard coal mix 1 thus is in the range between 13 and 18 m 3 /t for mining depths from 450 to 1120 m. For surface mines, the gas content of hard coal is 3–5 m 3 /t for depths from 50 to 200 m and 0.77 m 3 /t at the constant depth of 50 m for brown coal.. However, the gas content per ton of …
Research on Efficient Construction Paths for Intelligent Coal …
To summarize the beneficial effects of the intelligent and efficient construction of coal mines in China under different paths, the fsQCA method is applied for the first …
IJERPH | Free Full-Text | Risk Assessment of Miners' Unsafe …
China's coal mine production situation is grim and various types of accidents occur frequently, and gas explosion accidents are the highest incidence of coal mine accidents. The authors selected 200 gas explosion accidents of coal mine enterprises in recent years, and extracted a large number of workers' unsafe behaviors. …
Simulation of the power supply system of the coal mine …
underground part of the coal mine, no personnel in the underground part of the mine and no emissions into the air. In the paper [4], the term "intelligent coal mining" was …
Simulation modeling of the power supply system of the …
effectiveness of the implementation of FACTS devices in the power supply systems of coal mines can be performed using simulation methods.This article discusses the main approaches to the development of a simulation model of a power supply system of a …
Design and Performance Simulation of a Novel Liquid …
System for Heat Hazard Control in Coal Mines ZHAI Xiaowei1,2, XU Yu1,2*, YU Zhijin 1,2 1. College of Safety Science and Engineering, Xi'an University of Science and Technology, Xi'an 710054 ...
Analysis of multi-factor ventilation parameters for reducing …
To control the diffusion of highly concentrated coal dust during coal energy mining and determine the order of significance of each factor for dust control, …
Investigation on fault activation–induced floor water
Many coal mines in China are greatly threatened by floor water inrush due to mining-induced fault activation. In this paper, a theoretical safety factor is proposed to assess fault activation during coal mining. Some critical effects on fault activation is analyzed, including fault dip angle, coal pillar width, stress concentration coefficient, and …
Optimum Utilisation of Continuous Miner for Improving Production …
The continuous miner as used in coal mining is a machine capable of breaking, loading, and transferring coal from the seam being extracted on to a suitable transportation system in an almost ...
Coal | Challenges and opportunities
Coal has been in the news over the past few months. Not without reason. The recent power crisis in India has moved coal to the centre stage. India's energy sector depends heavily on coal as fuel for its thermal power plants. The ability of coal-based power plants to operate round-the-clock and provide base load capacity is central to meeting the …
Risk Assessment of Coal Dust Explosions in Coal Mines …
Despite being crucial for meeting the world's energy demands, coal mining operations present considerable health risks, especially when it comes to exposure to coal dust. Longwall coal mining, an advanced technique, has considerably enhanced production but made dust control more difficult. Due to its explosive nature, coal dust continues to be …
(PDF) Impact of Coal Mining on Environment
Impact of Coal Mining on Environment: A Study of Raniganj and Jharia Coal Field in India. October 2015 · IAFOR Journal of Arts & Humanities. Sribas Goswami. Coal mining adversely affects the eco ...
Application of Pre-Splitting and Roof-Cutting Control …
In Chinese coal mining, high-intensity mine pressure in the roadway and working face has been the critical factor that endangers the average coal production [1,2,3,4].In the past 30 years, with the rapid development of computer science and sensor technology, the study of mine pressure in the coal mining process has become more …
Deployment of Continuous Miner in under Ground Coal …
With the changing time now, continuous miners of different heights are available, which helps for optimum use of technology to mine out varying in situ height …
Full article: A research on dust suppression mechanism and application
At present, the open-pit coal production of China ranks second in the world (Wang Citation 2014) and is developing toward a large-scale direction.It has been proven that large-scale open-pit coal fields are concentrated in Xinjiang, Inner Mongolia, and other ecologically vulnerable areas (Jiskani et al. Citation 2021).Green mining is the theme of …
Fundamentals of modern ground control management in Australian
This paper summarised the typical pro-active ground control management system (PGCMS) implemented in various Australian underground coal mines. Australia produces approximately 100 million tonnes ...
Using data mining techniques to analyze the influencing factor …
1. .Introduction. China's energy structure is characterized by being rich in coal, but it is comparably much poorer in oil and gas, which gives coal the leading role in energy consumption (Liu and Li, 2013, Shen et al., 2012).A total of 2.75 billion tons of coal was consumed in power, metallurgy, chemical industries and building materials, …
Fundamentals of modern ground control management in …
This paper summarised the typical pro-active ground control management system (PGCMS) implemented in various Australian underground coal mines. Australia produces approximately 100 million tonnes a year of metallurgical and thermal coal from approximately 30 of the world's safest longwall mines operating in New South Wales …
Characteristics of Dust in Coal Mines in Central North China …
The identification of the dust characteristics in coal mine working faces is essential for preventing coal dust explosion and occupational diseases. In this paper, dust samples from the coal mines in southern Shanxi province and Henan province, central North China, were selected as the research objects. The results show that the dust contains primarily …
Enhancing ventilation fan performance in underground coal mines…
Ventilation is critical in underground coal mining (UCM) for safety and productivity. Challenges include mitigating hazardous gases, preventing coal dust accumulation, and achieving a balance between extraction efficiency and environmental concerns. Optimization techniques address these challenges, aiming for enhanced …
Full article: A research on dust suppression mechanism and …
Technical Paper. A research on dust suppression mechanism and application technology in mining and loading process of burnt rock open pit coal mines. …
Counting the cost: Coal mine closures to affect 2.5 million …
ALSO READ: Coal use to decline next year after record high in 2023 – IEA. Five coal-fired power plants and 15 coal mines will likely close by 2030, and another four plants and 23 mines by 2040 ...
SAFETY IN COAL MINES
iv) The 5-yearly average fatalities have reduced from 196 to 66 in the said period (i.e 66%). The 5 yearly average fatality rate per MT of Coal produ-ction have reduced from 2.18 to 0.15 in the said period (i.e. 93%) The 5 yearly average serious injuries have reduced from 1278 to 233 (i.e 85%) in the said period.
Analysis of Cutting Bits and Cutting Drum Affecting …
27th International Conference on Ground Control in Mining 297 Figure 6. Automated Rotary Coal Cutting Simulator. Figure 5. A Typical Cutting Drum with Bits. 1. Kennametal Bit - A 2. Kennametal Bit ...
(PDF) COAL MINING METHODS
Surface mining techniques can be broadly cl assified into the following types: (1) contour strip mining, (2) area strip mining, (3) open-pit mining, and. (4) auger mining. 6.1 Contour strip mining ...
METHANE IN POLISH COAL MINES
The paper presents the methane drainage efficiency for different systems used in Polish coal mines. Methane captured by drainage system is utilized in varying degrees. It is worth noting that this ...
Electromagnetic Interference (EMI) In Underground Coal Mines…
The MINER Act of 2006 mandates wireless two-way communication systems in underground coal mines in the USA. In addition, in 2015, the Mine Safety and Health Administration (MSHA) issued a final rule that requires operators of underground coal mines to equip place-changing continuous mining machines (CMMs) with proximity …
Mining Employees Safety and the Application of Information …
Data Extraction. The following (Table 2) summarizes the causes of safety issues, environmental factors, and technology reported in each study: design of each study, methodology used to analyze data, the sample size, and the findings were identified in detail.The variables reported as causes of or contributory factors to safety issues and …
Genesis, controls and risk prediction of H2S in coal mine …
The Chinese "Coal Mine Safety Regulations" states that the H 2 S concentration of coal mine gas is considered abnormal if it concentration is greater than 6.6 ppm 1, 2, 3. Such concentrations ...
Environmental Issues Due to Fire in Coal Mines: Its Impact …
The problem of spontaneous combustion is very common in coal mines worldwide. Coal faces are exposed to the atmosphere and react with oxygen (air) as a result of which it catches fire, depending on the incubation period, the quality of the coal and other factors inherently associated with the coal.
Rock burst risk prediction method based on multi-factor …
In order to calculate the critical depth of a typical rockburst coal mine quantitatively, which is helpful in rockburst prevention and control, in this paper, the concept of typical rockburst coal ...