Particulate matter (PM) is one of the main actors related to air pollution caused by surface mining. Fugitive dust, considered as particulate matter that cannot be collected by conventional measures, is classified by the particle size. The Environmental Protection Agency (EPA) categorizes PM as coarse and fine particles based on the …
Coal has a wide range of moisture (2-40%), sulfur (0.2-8%), and ash content (5-40%). These can affect the value of the coal as a fuel and cause environmental problems in its use. The depth, thickness, and configuration of the coal seams determine the mode of extraction. Shallow, flat coal deposits are mined by surface processes, which are ...
The coal mining industry has also begun to invest in IMD machines, permanent magnet motors, and other major equipment including emulsion pumps, belt tailpieces, and AFCs. The explosion-proof and intrinsically safe IMD machine for mining is an innovative solution combining a motor with a drive and control technology for high …
There are six systems in coal mine production, ... Through many sensors and PLC automatic control, real-time monitoring of mine drainage equipment and remote automation control 19,20,21.
A crucial assurance for coal mine safety production, prevention and control, and rescue, which is the fundamental tenet of implementing intelligent coal mining, is the safety, stability, and quick transmission of coal mine roadways. However, because of the complex structure of the roadway [...] Read more.
Sec. 102 SURFACE MINING CONTROL & RECLAMATION 4 5 So in law. Probably should be a semicolon. (d) the expansion of coal mining to meet the Nation's en-ergy needs makes even more urgent the establishment of ap-propriate standards to minimize damage to the environment and to productivity of the soil and to protect the health and safety of …
The corresponding coal mine equipment prediction and maintenance system (Dong et al., ... the accurate management system based on hidden danger text data mining can effectively reduce and control the hidden dangers in the production and operation process of coal mines. 6. Conclusions. Based on the safety big data theory, intelligence, …
Coal mine water hazard accidents are frequent in China, and are second only to coal mine gas mishaps (Lin et al. 2020). Over the long course of coal resource mining, China has developed coal mine water hazard control prevention theories, technology, and supporting equipment systems (Cui et al. 2018a, b; Hu 2003, 2005; Zhao et al. 2018).
2.1 China's energy production and consumption structure. In 2019, China's total national energy consumption was 4.86 billion tons of standard coal, a year-on-year increase of 3.3%. As shown in Fig. 1, among them, fossil energy accounted for 84.7%, coal, oil and gas consumption accounted for 57.7%, 18.9%, 8.1%, and non-fossil energy …
In order to explore the influencing factors of mining safety in China and the related interactive mechanisms, this study calculates the statistics of 58 coal mine death accidents in Shandong, China, during the period from 2010 to 2014, and summarizes the accident causes to establish the index system of mining safety including 22 factors at 6 …
The transformation of the coal industry, in alignment with the national level of productive forces development, indicates a growing trend towards automation in coal mining. The utilization of innovative automated technologies, energy-efficient equipment, and computer-aided technology facilitates the automation of coal mine production.
This paper covers geologic exploratory methods, data organization, and the value of collecting and interpreting geologic information in coal mines to enhance safety and production. The implementation of the methods described above has been proven effective in predicting and mitigating adverse geologic conditions in underground coal mining.
This mining method has been practiced since the late 1950s (Plass 1967) but underwent significant expansion during the 1990s for reasons that included the expanded scale of mining equipment and coal processing facilities (Copeland 2015). Historically, mountaintop mines pushed or otherwise placed much of the mine spoils on …
First and foremost, coal mining requires high production in highly safe environments. In other words, miner's health and safety is the top priority. ... Development of various sensors to measure the ever changing geological and mining conditions for advanced control of face equipment and its operation. For example, pitch & roll controls …
CMM extraction is the project of using special equipment and facilities to extract the gas contained in coal seams, rock seams, or mining areas, also known as CBM development (Yu and Zhou, 2001).Based on underground and surface CMM extraction technology development, this paper divides the development of CMM extraction …
variable. Select the best definition of Quality Control. - A process using a statistical method to detect when a process is slipping out of control. - A process that measures output relative to a standard and takes action when discrepancies occur. - A process that samples all raw inputs before production and rejects non-conformances back to the ...
Mining safety is recognized as one of the factors influencing the mining industry's long-term viability. Therefore, we did a bibliometric analysis to take stock of safety management in the coal mining industry. This study suggests a three-step strategy, comprising literature extraction and screening, bibliometric analysis, and discussion, to …
management and optimization of the entire coal mining process can be achieved, thereby improving coal mining efficiency, reducing safety risks, and achieving safe and efficient coal mine production. 3.1. Risk identification and early warning Risk identification and early warning of difficult-to-mine coal seams is a crucial part of coal mine
The existing 7 state-owned coal mines (belonging to the same group company) have an average production capacity of 387,000 tons/year (only 1 has a mechanized coal mining face, no mechanized ...
The various methods of mining a coal seam can be classified under two headings, surface mining and underground mining. Surface and underground coal mining are broad activities that incorporate numerous variations in equipment and methods, and the choice of which method to use in extracting a coal seam depends on many technological, …
Continuous Miner. In Room & Pillar operations, Continuous Miners lead the way — and Gainwell Continuous Miners are up to the challenge. With best-in-class installed power, these can cut through even the hardest coal with a wide range of sizes that allow them to work in seams of any height. With precise cutting depths and serviceability ...
The imported advanced fully mechanized coal mining equipment can only be applied to the coal seam more than 1.5 m and cannot be used for safety and highefficiency mining for the coal seam 1.3 m ...
At present, 95% of coal mines in China are underground mines. The average mining depth of middle- and large-scale mines is about 456 m, and the deepest mining depth is 1 365 m. The coal production of mines at mining depth over 600 m accounts for 28.5% of total coal production at present.
Abstract. A smart fully mechanized coal mining working face is comprised of various heterogeneous equipment that work together in unknown coal seam …
Coal is the most abundant fossil fuel on Earth. Its predominant use has always been for producing heat energy. It was the basic energy source that fueled the Industrial Revolution of the 18th and …
The goal is to realize the digitization of the mining environment, with intelligent mining equipment, remote control of the production process, an information …
Utilizing real data from an active coal mine with electric equipment, we show the impacts of (i) seasonal power price fluctuations on a medium-term production …
Coal is expected to remain the primary energy source in China for the foreseeable future. Utilizing the methane released during the mining process through effective coal mine methane (CMM) control technologies can provide triple benefits in terms of safety, energy, and the environment, thus contributing to carbon neutrality …
Likewise, continuous mining equipment in underground coal mining, along with draglines and bucket wheel excavators in surface coal mining, were key advances to reach new levels of productivity in coal production. ..., whereas the use of barriers, such as the gel barriers widely used in the oil and gas industry to control the flow of sweep …
For large underground coal mines producing 10 million tons a year, rapid excavation and stability of deep roadways are pivotal to ensure sustainable, safe, and efficient production.