Results 11 to 20 of about 210 (68)
Pick-and-place trajectory tracking control for cable-driven gangue sorting robots [PDF]
, 2023 The cable-driven parallel robots have the advantages of fast moving speed, large workspace and strong dynamic load carrying capacity, so they are employed to perform the pick-and-place operation of the target gangues quickly and accurately.
Hongwei MA +6 more
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Shuitu Baochi Xuebao, 2020 探究生物炭和聚丙烯酰胺（PAM）混施对煤矸石基质水分入渗和蒸发的影响，可为矿区矸石山土壤水分的调节提供依据。采用模拟土柱方法，研究不同矸土比（1：2，1：1和2：1）的煤矸石基质，在混施生物炭（1%，2%和4%）和PAM （0.5‰和1‰）条件下，基质水分的吸持性能、入渗及蒸发特征。结果表明：（1）对煤矸石基质入渗性能的影响程度为生物炭 > PAM > 矸土比；随生物炭施用量的增加，基质的饱和含水量以及入渗速率均呈增加趋势，而PAM施用量的增加则减弱了煤矸石基质的饱和含水量和入渗速率。（2）添加1 ...
李娜 +4 more
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Application and prospect of coal gangue slurry filling technology [PDF]
In order to realize in-situ, green and large-scale disposal of coal gangue, coal gangue slurry filling technology, as a new filling technology, has been rapidly developed and applied in recent years.
Chaofeng YUAN +6 more
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Principles and key technologies for the large-scale ecological utilization of coal gangue [PDF]
Coal is the main energy in our country and the ballast stone of energy security. As an inevitable product in the process of coal mining and coal washing, coal gangue has an annual output of more than 700 million tons, which is in urgent need of large ...
Yanling ZHAO, Zhen MAO, Zhenqi HU
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Risk assessment of heavy metals in the soil of an abandoned coal mine area [PDF]
During the coal mining process, a large amount of waste such as coal gangue and coal washing water is generated. The heavy metal pollutants in those wastes migrate and diffuse into the surrounding soil and water environment through sedimentation, runoff,
Jia LIU +6 more
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Foundation and technology of coordinated utilization of bulk solid waste ‘Three modernizations’ in coal power base [PDF]
The construction of 14 large-scale coal bases and 89 demonstration bases for the comprehensive utilization of bulk solid waste in China marks that the utilization of bulk solid waste in mining areas has been incorporated into the national strategic ...
Denghong CHEN +8 more
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Shuitu Baochi Xuebao, 2023 表土回覆是露天煤矿排土场生态修复的关键步骤,覆土厚度直接影响植物生长和复垦成本,为研究露天煤矿排土场不同覆土厚度对土壤水分入渗及植物水分利用的影响,采用室内土柱模拟试验,设置10,20,30,40,50 cm共5个覆土厚度,分别进行垂直入渗试验和室内盆栽试验(玉米),并结合氢氧同位素稳定示踪技术,研究不同覆土厚度土壤入渗和玉米水分利用特征,筛选研究区排土场最佳覆土厚度。结果表明:覆土厚度为10~30 cm(27.05~33.02 mm/min)的初始入渗速率显著高于40~50 cm(21.59~24 ...
张雅楠, 吕刚
doaj
Research progress on in-situ intelligent sorting and filling technology of coal gangue underground [PDF]
Coal gangue needs to be transported to the ground for further treatment in traditional underground mines, which not only occupies land spaces, but also causes atmospheric and environmental pollutions due to spontaneous combustion and rainwater leaching ...
Fengqi GUO +4 more
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Shuitu Baochi Xuebao, 2017 为研究煤矿区用矸石作为垫底基质进行土壤剖面重构土壤水分再分布过程和剖面热扩散与气体浓度变化特征，以指导工程设计和重构土壤熟化技术应用，在实验室设计了一种煤矿区重构土壤水气热运移模拟装置，通过布设在土柱系统不同深度的温湿度传感器和CO2浓度检测仪，连续监测重构土壤剖面含水量、温度和CO2浓度。结果表明：煤矸石层具有良好的阻水性，阻碍水分的入渗，增加上层土壤的持水能力。但是，煤矸石的持水性差，煤矸石层的含水量远低于土壤层10%左右；煤矸石具有更佳的热扩散性，在加热过程中煤矸石层的温度远大于土壤层 ...
王, 陈清华
doaj
Advances in research on technologies for large-scale coal gangue utilization for green mine construction [PDF]
BackgroundThe coal gangue, a solid waste, features high production and a continuous increase in the amount piled in China. The long-term piling up of coal gangue will cause the waste of land resources and environmental pollution in mining areas.
Dawei XIE +4 more
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