Results 101 to 110 of about 8,725 (226)
Study on unmanned mining technology of fully mechanized coal mining face
Gong-kuang zidonghua, 2017 The paper analyzed present situation of development of fully mechanized coal mining face, including application situation and existing problems of technologies of memory coal cutting, hydraulic support automation, coal and rock identification and so on.
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Study of Application of L.E.D. Lighting System in Mines [PDF]
, 2012 The work done on the project contains field observations for lighting in underground and open-cast mines showing general requirements of lighting and sources of lighting. Regulations related to mine lighting are briefly enumerated.
Mishra, Hitesh
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Meikuang AnquanThe fully mechanized mining face system is complex and large, and the equipment is highly correlated. The reliability of the intelligent fully-mechanized coal mining equipment system has gradually become the key factor restricting the intelligent safe ...
Xu LI +4 more
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Gong-kuang zidonghua, 2018 In order to solve problems of large number of workers and high labor intensity on fully mechanized mining face with large mining height, according to actual situation of No.2 Coal Mine of Huangling Mining Group Co., Ltd., technical difficulties such as ...
FAN Jingdao
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Applicability of siberian placer mining technology to Alaska [PDF]
, 1991 The result of Perestroyka and Glasnost has been an awakening of potential for cooperation between East and West. Nowhere has that been better demonstrated than between Alaska and Magadan Province, USSR. This report summarizes a one year effort financed
Barker, J.C. +3 more
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A moving baseline for evaluation of advanced coal extraction systems [PDF]
, 1981 Results from the initial effort to establish baseline economic performance comparators for a program whose intent is to define, develop, and demonstrate advanced systems suitable for coal resource extraction beyond the year 2000 are reported.
Bickerton, C. R., Westerfield, M. D.
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Meikuang Anquan, 2021 In order to study the technical problems in the mining of irregular working face and the law of underground pressure in the mining process, take the 81308 fully mechanized caving face of Baode Coal Mine as the background, this paper uses theoretical analysis, numerical simulation, and field tests to study the technology of end equipment lapping, mining
YANG Xiaodong, LI Cunzhou
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Automatic control system of top coal caving on fully-mechanized coal mining face
Gong-kuang zidonghua, 2015 In view of problems of large randomness, low efficiency of coal caving of artificial operation for top coal caving mining face, an automatic control system of top coal caving on fully-mechanized coal mining face was designed. The system uses coal gangue recognition sensor to collect, analyze, process vibration signals generated by coal and gangue ...
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Meikuang Anquan, 2020 For the characteristics of the two empty lanes which are parallel empty roadways in front of 3311 fully mechanized caving face in Chengzhuang Mine and empty roadway in roof, and the problems that overhanging support pressure overlaps, the mine pressure appears severely and the roof collapses, etc, filling empty lane is a reasonable way to pass empty ...
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Longwall Mining Stability in Take-Off Phase [PDF]
, 2013 Mechanised longwall mining is one of the more commonly employed exploitation methods in underground mines in the north of Spain as well as in the rest of the world. It is continuously changing and evolving, with new techniques, technology, equipment, and
Alcalde Gonzalo, José +4 more
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