Surface extracting is the most widely used mining method globally Surface mining can be divided into open pit and open cut methods of metal and coal mining The surface mining will be more complicated when the depth of
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— Factors Affecting The Selection of Surface Coal Mine Equipment For any specific open pit coal mine there are many types specifications and types of equipment to choose from How to reasonably select equipment to make it the lowest production cost durable strong adaptability good technical performance high production efficiency etc
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— The main topics that will be discussed in this chapter will include an introduction into the general features of open pit mining ore body characteristics and configurations stripping ratios and
— In the field of mining engineering many scholars have introduced successful MCDM applications such as equipment selection for open pit mines [9 10] drilling technology investment analysis
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— Data is sourced from different mine equipment in real time and they are integrated with air quality monitoring systems to provide information to support decisions for fugitive dust The method is implemented and demonstrated in a case study at a large surface coal mine 2018 Cytogenetic instability with residential proximity to open pit
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— The Finnish mining industry announced its new plan for mining control and real time resource management in 1992 Jin and Zhang 2008 ; China s Shenhua Huaineng digital open pit mine platform built in 1990 Wu et al 2019 and Shaanxi Coal and China Coal Group have actively built their own open pit mine technology digital platform Yu et
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— The Wucaiwan open pit coal mine is located in the Western margin of Eastern Junggar Coalfield Fig 1 B where the Jurassic Badaowan Sangonghe and Xishanyao Formations are the coal bearing strata Fig 1 C Among these the Middle Jurassic Xishanyao Formation is the predominant coal bearing unit and it is made up by
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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 facilitates the installation
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— 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 While the impact of the negative aspects of these engines might be bearable in open pit operations in underground mines
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— Coal seam that is thinner than a certain value is defined as thin coal seams TCS It commonly occurs in China as it covers % of the mining area This situation is even severe in China s large surface coal mines in which TCS accounts for 10 50% of the total reserve Most TCS cannot be feasibly mined due to the working conditions of
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— Open pit mining equipment Open pit mining is an industrial activity that involves the removal of large quantities of soil and subsoil which is then processed to extract the mineral most common types of mining equipment vary depending on whether the work is being carried out above or below ground or mining for gold metals coal or
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— The article describes a problem of considering the coal strata bedding for the scheming of dragline mining technology for open pits developing flat seams For three flat coal seams strata processing the main criterion defining the choice of technology of their processing is the stratigraphic positioning rate for the middle coal seam It is the ratio of
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— The open pit mining industry is an important basic industry related to China s economic lifeline and energy security China s open pit coal production has been maintaining good growth momentum
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