Study on Optimization of Coal Truck Flow in Open-Pit …
Based on the characteristics of the coal mining semicontinuous process system, this paper analyzes the interaction between production operations such as mining, loading, transportation, …Web
اقرأ أكثر(PDF) COAL MINING METHODS
Coal is an organic sediment consisting of a complex mixture of substances. It has a lot of commercial and industrial applications. It is an energy giving non-renewable source of energy. Mining of ...Web
اقرأ أكثرDust pollution in cold region Surface Mines and its prevention and
Since more than 90% of China's open pit coal production comes from cold regions, the dust pollution in winter stope is severe. Due to the extended period of severe cold, less precipitation, and high evaporation in the mining area, water spraying is difficult in winter (Luo et al., 2021a). In addition, dry dust reduction techniques are also more ...Web
اقرأ أكثرSelection of Open-Pit Mining and Technical System s …
open pit [6,13]. The transition to a new type of transport can take a long time and involves changing the opening workings' parameters and transport communications [6]. The strategy of transition to a new stage of open-pit mining involves changing the parameters of the open pit at the end of mining. The main parameter that is changed is …Web
اقرأ أكثرCoal mining
Highwall mining is an adaptation of auger mining. Instead of an auger hole, an entry into the coal seam is made by a continuous miner, remotely operated from a cabin at the surface. The cut coal is transported by conveyors behind the miner to the outside. Using a television camera, the operator can see and control the miner's progress.Web
اقرأ أكثرReview of GIS-Based Applications for Mining: Planning, Operation…
In this study, geographic information system (GIS)-based methods and applications utilized for mine development were reviewed. Three types of GIS-based studies, namely studies on mine planning, operation, and environmental management, were examined to describe the role of GIS as a decision-making support tool in mine …Web
اقرأ أكثرResearch and practice of intelligent coal mine technology
The result is efficient and intelligent operation across the whole process of mine geological protection, coal mining, production, and operation management. The fundamental goal of developing intelligent coal mines is to increase safety, ... The development of open-pit coal mines in China started late, and coal resources suitable …Web
اقرأ أكثرBoundary optimization of inclined coal seam open-pit mine
Taking an open pit mine of an inclined coal seam in Xinjiang, China, as an example, the coal price variation trend obtained by the ISSA–SVR prediction method is applied to the limit adjustment ...Web
اقرأ أكثرOPENCAST COAL MINING AT LARGE DEPTH IN …
Open cast coal mining involves various operations e.g overburden removal, drilling, blasting, mineral loading, haulage and …Web
اقرأ أكثرOptimized design of drilling and blasting operations in open pit …
Carefully engineered blasting will be an even more important aspect of successful open pit mining as already know in the past and moreover in the future as: (1) pits become deeper and steeper, (2) quality separation to avoid dilution and ore losses …Web
اقرأ أكثرLife cycle assessment of opencast coal mine production: a
China has the largest coal production in the world due to abundant resource requirements for economic development. In recent years, the proportion of opencast coal mine production has increased significantly in China. Opencast coal mining can lead to a large number of environmental problems, including air pollution, water pollution, and solid …Web
اقرأ أكثرRecent Research Agendas in Mining Equipment Management: A …
Patterson, Kozan and Hyland proposed an integrated optimisation model of an open-pit coal mine with the consideration of four common open-pit coal mining subsystems: excavation and haulage, stockpiles, processing plants and belt conveyors. A MIP model is developed to synchronize and optimise the operations of these mining …Web
اقرأ أكثرResearch on production capacity planning method of open-pit …
Abstract Reasonable production capacity is related to the economic benefits of an open-pit coal mine. This study analyzes the relationship between the working face …Web
اقرأ أكثرFactor Analysis for Technology Management and Its
This study primarily focuses on identifying the causes of the low coal productivity in CIL's seven mines, namely WCL, ECL, MCL, CCL, NCL, SECL, BCCL, …Web
اقرأ أكثرCoal
A pit, sometimes called a borrow, is dug in an area. This pit becomes the open-pit mine, sometimes called a quarry. Open-pit mines can expand to huge dimensions, until the coal deposit has been mined or the cost of transporting the overburden is greater than the investment in the mine. Open-pit mining is usually restricted to flat …Web
اقرأ أكثرResearch on production capacity planning method of open …
The open-pit coal mining has the characteristics of high recovery and high safety factors, open-pit coal mining can bring huge economic benefits to the mining area4–7. In the...Web
اقرأ أكثرSteep End-Slope Mining and Slope Stability of Extremely Thick
2.2. Numerical Modelling. Firstly, Figure 3 shows the end-slope morphology at different stages of open-pit mining with extremely thick inclined coal seams. In Figure 3(a), L 1 and N 1 are the location of the working slope and the location of the inner dump before advancement, and L 2 and N 2 represent the location after advancement, …Web
اقرأ أكثرLand | Free Full-Text | Managing and Reforesting Degraded Post-Mining
As with other open-pit coal mining operations, before the coal extraction process can be executed, companies are required to peel, save, and temporarily store the layers of soil materials found to be reused as a plant growth medium in revegetation activities [32,33]. This soil stockpile is placed in a safe place, and if it is not used ...Web
اقرأ أكثرThe use of air decks in production blasting in an open pit coal …
to control the breakage process through effective distribution of explosive energy ... The mine is situated in central India near the city of Nagpur in the state of Maharastra (Figure 1). 2.2. ... Mechanisation at Durgapur open pit coal mine Operation Make Speci¢cations Numbers Drilling RECP 600 150 mm (drill diameter) 1Web
اقرأ أكثرOptimization of Blasting Operation in Opencast Mine
In mining industry the mineral resource extracted by both opencast and underground mining. In both cases the extraction is done by loosening the mineral through mainly perform the operations of DRILLING and BLASTING. In India many of the mines are working on with opencast mining and most of the mining operations are performingWeb
اقرأ أكثرNumerical Modelling-Based Stability Analysis of …
The depths of open-pit mines have been increasing in the last few decades. This transformation generates a vast amount of waste rock material per unit mining area imposing a significant economic, …Web
اقرأ أكثرDewatering management is critical for new mines
Dewatering management is critical for new mines. A major consideration when starting an open pit or underground mine is to ensure that it will have the most efficient, cost-effective, and low-carbon system for controlling water - whether from under the ground or rainfall. Saleem Khawaja September 12, 2022. Share this article.Web
اقرأ أكثرAnalysis of the Dust-Concentration Distribution Law in an Open-Pit Mine
In this study, a solar-powered multipoint network monitoring method was used to record dust-particle concentrations and meteorological indicators in the Anjialing open-pit coal mine in the Pingshuo mining area. The factors influencing the concentrations of particulate matter of different maximum diameters (PM2.5, PM10, and total suspended …Web
اقرأ أكثرFeasibility Evaluation of Highwall Mining in Open-Pit Coal Mine …
Highwall mining is a method that involves using a continuous highwall miner system (CHM) to extract coal from the remaining coal seams, which has proven to be an effective and safe method for extracting coal after open-pit mining. However, application cases globally have shown that the feasibility of highwall mining in open-pit coal mines …Web
اقرأ أكثرOpen Pit Mining | IntechOpen
Open pit mining method is one of the surface mining methods that has a traditional cone-shaped excavation and is usually employed to exploit a near-surface, nonselective and low-grade zones …Web
اقرأ أكثرPhase Planning for Open Pit Coal Mines through …
Abstract This paper presents a phase planning method specially designed for coal deposits with nearly horizontal, bedded coal seams. The geology of this type of deposit is modeled into a column …Web
اقرأ أكثر(PDF) Evaluating the Feasibility of Illegal Open-Pit Mining
As open-pit excavation causes sudden changes in the scattering properties of ground objects along with dramatic vertical deformation, we evaluated the feasibility of using interferometric ...Web
اقرأ أكثرFrontiers | Dynamic optimization of open-pit coal mine …
The share of open-pit coal mining in major coal-mining nations like the United States, Australia, Russia, and India is more than 50%, and some countries reach more than 90% (He et al., 2006; Zheng …Web
اقرأ أكثرA study on movement characteristics and distribution law of dust
The operation of open-pit coal mines produces a large amount of dust particles, ... Simulation process. The research objective was an open-pit mine in Inner Mongolia, which was a typical large open-pit coal mine in China and adjacent to a city, making it a special value subject. Lignite was the main type of coal produced in this …Web
اقرأ أكثرOpencast Mining
The open pit is opening the orebody from the surface by separate removal of ore and associated waste rocks. It is the most economic option for a deposit up to that depth where the economic ratio of ore and waste can sustain. There are many advantages in open-pit mining method namely:-Full visualization of exposed orebody and negligible ore loss,-Web
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