2021-11-12 Top caving coal mining is one of the technical development directions for achieving intensive, high-yield and high-efficiency production in China's thick and extra-thick seam , as shown in Fig. 1. Download : Download high-res image (409KB) Download : Download full-size image; Fig. 1. The schematic diagram of top coal caving mining method .
Read MoreA new algorithm to improve the energy efficiency of a coal-fired thermal power plant by determining the optimum excavation parameters in an opencast lignite mines International Journal of Oil Gas and Coal Technology . 10.1504/ijogct.2021.118649 . 2021 . Vol 28 (3) . pp. 374. Author(s):
Read More2013-1-1 India has emerged as the third largest coal producer in the world after China and USA with a 9% share of the total global coal production. While the coal production from underground mining in countries like China, USA and Australia are about 95, 33 and 20% respectively, India produces only about 15% of coal from underground mines (Prasad 2009).
Read More2021-10-14 Smart coal mine: Higher efficiency, lower costs. The Caojiatan smart coal mine is seen in Northwest China's Shaanxi province on Oct 12, 2021. Large equipment here such as
Read MoreThis study defines a green mining system as a synergetic operation system composed of a mining subsystem and an environmental governance subsystem. Through conducting a case study of China's coal enterprises, this study identifies the mining subsystem as the first production stage and the environmental governance subsystem as the second production stage. To evaluate green mining
Read More2018-9-24 How Mining Companies Improve Production Efficiencies and Mine Economics. Managing mine dilution and controlling grades are key to improving recoveries and economics. When it
Read MoreCoal mines are hazardous workplaces. Coal accounts for around 24 per cent of employment and 27 per cent of total revenue for the Australian mining sector. It is an important industry for Australia's gross domestic product, but can be a hazardous
Read More2015-2-5 Optimize mine sites through enhanced sequencing. Ramp up production from lower cost mines and prioritize lower cost projects. Attract and retain experienced
Read More2015-9-15 4 Mining for efficiency The productivity doldrums 1 Formerly GBI Mining Intelligence, which was acquired by PwC in September 2013 Understanding why productivity fell following the commodity boom is a complex issue. There are a range of impacts arising from the increasing scale of open cut mines and complexity of mining operations, which may at
Read More2018-12-21 equipment for new modern samples with an average efficiency of coal-fired power plants by 2020 at least 38%, and by 2030 - not less than 41%, which implies a need to increase production and improve competitiveness of coal mining enterprises. The fundamental principles of measuring enterprise competitiveness are to assess the value of the business.
Read More2021-9-24 The coal mining industry can increase the competitiveness of coal by removing minerals from it to produce a higher-grade product. A cleaner, more energy dense fuel will lead to improved boiler operation by reducing ash formation in the boiler which in
Read More2016-10-21 Increasing efficiency of coal plants may help to address these concerns by reducing emissions without reducing output. Additionally, Congress may want to consider whether such efficiency improvements could be accelerated if these were implemented in a program focused on increasing the efficiency of the coal-fired power plant sector.
Read More2018-11-1 Advanced Coal Technologies Improve Emissions and Efficiency New coal-fired generating plants are not showing up in the U.S. Elderly plants are retiring in large numbers. But other parts of the ...
Read More2021-10-14 Smart coal mine: Higher efficiency, lower costs. The Caojiatan smart coal mine is seen in Northwest China's Shaanxi province on Oct 12, 2021. Large equipment here such as coal machines, hydraulic support, and transport systems can be operated via a smartphone, a move to improve efficiency and reduce costs.
Read MoreA new algorithm to improve the energy efficiency of a coal-fired thermal power plant by determining the optimum excavation parameters in an opencast lignite mines International Journal of Oil Gas and Coal Technology . 10.1504/ijogct.2021.118649 . 2021 . Vol 28 (3) . pp. 374. Author(s):
Read MoreThis study defines a green mining system as a synergetic operation system composed of a mining subsystem and an environmental governance subsystem. Through conducting a case study of China's coal enterprises, this study identifies the mining subsystem as the first production stage and the environmental governance subsystem as the second production stage. To evaluate green mining
Read MoreCoal mines are hazardous workplaces. Coal accounts for around 24 per cent of employment and 27 per cent of total revenue for the Australian mining sector. It is an important industry for Australia's gross domestic product, but can be a hazardous
Read More2018-9-24 How Mining Companies Improve Production Efficiencies and Mine Economics. Managing mine dilution and controlling grades are key to improving recoveries and economics. When it
Read More2020-6-23 A semicontinuous process system consisting of a single-bucket excavator, truck, crushing station, and belt conveyor is the main coal mining process system of a large-scale hard coal open-pit mine. Through analyzing the coal mining production process, the key issues of coal mining truck flow optimization are obtained. Statistical method of using triangular fuzzy numbers analyzes the key time ...
Read More2021-10-14 Smart coal mine: Higher efficiency, lower costs. The Caojiatan smart coal mine is seen in Northwest China's Shaanxi province on Oct 12, 2021. Large equipment here such as coal machines, hydraulic support, and transport systems can be operated via a smartphone, a move to improve efficiency and reduce costs.
Read More2020-6-4 NEW DELHI: The government on Wednesday said it has revisited old laws in the coal sector to boost domestic production and reduce imports of the dry fuel. "Age old mineral concession rule, 1960 was governing many aspects of coal mining and
Read More2018-11-1 Advanced Coal Technologies Improve Emissions and Efficiency New coal-fired generating plants are not showing up in the U.S. Elderly plants are retiring in large numbers. But other parts of the ...
Read MoreThis study defines a green mining system as a synergetic operation system composed of a mining subsystem and an environmental governance subsystem. Through conducting a case study of China's coal enterprises, this study identifies the mining subsystem as the first production stage and the environmental governance subsystem as the second production stage. To evaluate green mining
Read More2018-9-24 How Mining Companies Improve Production Efficiencies and Mine Economics. Managing mine dilution and controlling grades are key to improving recoveries and economics. When it
Read More2016-10-21 Increasing efficiency of coal plants may help to address these concerns by reducing emissions without reducing output. Additionally, Congress may want to consider whether such efficiency improvements could be accelerated if these were implemented in a program focused on increasing the efficiency of the coal-fired power plant sector.
Read More2018-2-20 improve overall process, energy and water efficiency. Implementation of the PIO methodology has delivered significant improvements in mine efficiency, mill throughput and reduced operating costs at mines around the world (Dance et al, 2006). For example, increases in mill throughput of 5 to 20 percent have been measured at some sites.
Read More2021-9-4 Peng S (2020) Current status and prospects of research on geological assurance system for coal mine safe and high efficient mining. J China Coal Soc 45(7):2331–2345. Google Scholar Qian M, Xu J, Wang J (2018) Further on the sustainable mining of coal. J
Read MoreConstraints of coal mining safety management efficiency. Affiliations: School of Energy Science Engineering, Henan Polytechnic University, Jiaozuo, Henan, China. E-mail: [email protected] Abstract: BACKGROUND:Investigation of the safety management efficiency in a coal mine aims to improve its safety management level thus ensuring coal ...
Read More2015-11-1 The global mining industry is under pressure. In the short term, falling commodity prices are squeezing cash flow. Looking ahead, many existing mines are maturing, resulting in the extraction of lower ore grades and longer haul distances from the mine face; ore-body-replacement rates are in decline; and new-mine-development times are increasing.
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