Results 21 to 30 of about 8,212,561 (277)
Dust Distribution of PM5 and PM10 in Large Mining Height Fully-Mechanized Face
Meikuang Anquan, 2020 In order to obtain the dust distribution of PM5 and PM10 in large mining height fully-mechanized face, the dust concentration around the shearer drum and along the downwind side of the shearer are measured under the conditions of the following wind and ...
SU Shilong, HAO Yongjiang
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Research on Technology of Supporting in Super‐Large Section Cut in Working Face with Large Mining Height [PDF]
Advances in Civil Engineering, 2021 For the support problem of the super‐large section cut in working face with large mining height, the 1105 cut pilot chamber of Zhaogu No. 2 Mine, the roof strata structure detection and the strata movement rule research were conducted. The results prove that concentrate fracture area, gradually sparse fracture area, and rare fracture area regularly ...
Zhicheng Ren, Minghui Zuo
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Improvement Design of Gangue Blocking Device of Shearer with Large Mining Height
Gong-kuang zidonghua, 2012 The structure, principle, technical characteristics and existed problems of traditional gangue blocking device of shearer with large mining height were analyzed, an improvement design was proposed and simulation analysis was given. By means of increasing
LI He +3 more
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Meikuang Anquan, 2021 In order to realize the safety, high efficiency and high recovery rate mining of 9-13 m thickness hard coal seam in Jinjitan Coal Mine, the top coal recovery rate and coal wall stability of different cutting heights are analyzed by theoretical analysis ...
MENG Xiangjun +6 more
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Applied Sciences, 2023 The coal walls in a caving face with a tall mining height are prone to rib spalling, which leads to the phased cessation of the mining of the working face, causes heavy losses, and endangers the safety of underground workers.
Guohao Meng +4 more
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Weighted Association Rule Mining using Weighted Support and Significance Framework [PDF]
, 2003 We address the issues of discovering significant binary relationships in transaction datasets in a weighted setting. Traditional model of association rule mining is adapted to handle weighted association rule mining problems where each item is allowed to
Feng Tao +5 more
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Research on Dust Source Traceability Based on Dust Migration Law in Working Area of Large Mining Height Fully-mechanized Face [PDF]
E3S Web of Conferences, 2022 The dust control basis of fully mechanized mining face is clear dust source characteristics. In view of the problem of unclear dust source and unknown distribution characteristics in the working area of 7.8 m large fully mechanized mining face, the fully
Li Zhi, Ma Wei
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Gong-kuang zidonghua, 2014 The paper introduced key technologies of automatic fully-mechanized top-coal caving face with large mining height, including automatic control of hydraulic support, machinery-tracked automation, automation of coal caving, remote control, lighting and low
FAN Zhizhong
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Meitan kexue jishu, 2023 Coal wall of large mining height face in steeply dipping coal seam has large free height, wide free movement space and poor self-stabilization balance, coal wall is not an isolated body in the face, it can form a load-bearing structure with the ...
Hao ZHANG, Yongping WU, Panshi XIE
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Adaptability Analysis of Full Height Mining at One Time of Deep Soft Thick Coal Seam
Frontiers in Earth Science, 2022 With the improvement of technology and equipment, it is preferred to adopt full-height mining at one time when conditions permit. According to the specific geological conditions of no.
Qinghai Li +5 more
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