مسكن
>
Coal mine underground fully mechanized face crusher
منتج
أكثر من 30 نوعًا من المنتجات تغطي التعدين وسحق البناء والطحن الصناعي ومواد البناء الخضراء وغيرها من المجالات
Coal mine underground fully mechanized face crusher
Research on an Intelligent Mining Complete System of
2023/11/8 The mining environment of thin coal seam working faces is generally harsh, the labor intensity is high, and the production efficiency is low. Previous studies have shown that thin coal seam mining finds it difficult to
获取价格
Research on an Intelligent Mining Complete System of
2023/11/8 The combination of an SAC electro-hydraulic control system and SAP pumping station control system has been applied in 16,108 intelligent fully mechanized coal mining faces, which realizes the ...
获取价格
CFD modeling of coal dust migration in an 8.8-meter-high fully ...
2020/12/1 Shangwan Coal Mine is the fully mechanized mining face with the largest
获取价格
CM-YOLOv8: Lightweight YOLO for Coal Mine Fully Mechanized Mining Face ...
The dataset utilized in this study is the Underground Longwall Mining Face (DsLMF+) image dataset , comprising 138,004 images annotated with six classes: coal miner, hydraulic support guard plate, large coal, mine safety helmet, miner behaviors, and towline. The dataset incorporates diverse angles, scenes, and tasks, providing a comprehensive ...
获取价格
Thin coal seam Fully Mechanized Longwall Mining
We have done 100+ thin coal seam underground fully mechanized mining worldwide. ... ALPHA longwall mining consists of off-pan coal shearers, armored face conveyors, crushers, powered hydraulic roof-supports and counter-part
获取价格
Research on an Intelligent Mining Complete System of a Fully Mechanized ...
2023/11/8 Crusher: PLM1000: 1: Yes: Emulsion pump: Model BRW400/37.5: 2: Yes: Spray pump: ... The intelligent mining system of a fully mechanized coal mining face in a thin coal seam of 16,108 working faces includes an electro-hydraulic control system of hydraulic support, automatic coal cutting and video monitoring system of shearer, intelligent ...
获取价格
An operation optimization method of a fully mechanized coal mining face ...
2019/12/2 A mathematical hydraulic support self-tracking model for three-machine cooperative mining is proposed to address low efficiency and difficulties in strategy evaluation of a fully mechanized coal face. The proposed model uses the coordinates and traction speed of the shearer to calculate the frequency of the circular hydraulic support and realize the coordinated
获取价格
Research on an Intelligent Mining Complete System of a Fully Mechanized ...
2023/11/8 In order to effectively solve the problems existing in thin coal seam mining, Binhu Coal Mine has established intelligent fully mechanized mining and actively explored automatic coal cutting ...
获取价格
Research on an Intelligent Mining Complete System of a Fully Mechanized ...
2023/11/8 The combination of an SAC electro-hydraulic control system and SAP pumping station control system has been applied in 16,108 intelligent fully mechanized coal mining faces, which realizes the automatic following of underground support and the control of adjacent support, partition support, and group operation; the automatic coal cutting of the ...
获取价格
CM-YOLOv8: Lightweight YOLO for Coal Mine Fully Mechanized Mining Face
2024/3/14 like fully mechanized coal mine working faces for target identification. In the design of predefined Anchor Boxes, this paper initially analyzes the dataset of fully mechanized
获取价格
Applications of Machine Vision in Coal Mine Fully
coal mine fully mechanized tunneling faces This article has been accepted for publication in IEEE Access. This is the author's version which has not been fully edited and
获取价格
Coal mining - Underground mining Britannica
2 之 Roof support at the face (the area where coal is actively mined) is intended to hold the immediate roof above the coal face. In modern mechanized mines, roof bolting is the most common method employed. Steel bolts, usually 1.2 to 2 metres long and 15 to 25 millimetres in diameter, are inserted in holes drilled into the roof by an electric rotary drill and are secured by
获取价格
Development and prospect on fully mechanized mining in Chinese coal mines
2014/9/1 Fully mechanized mining (FMM) technology has been applied in Chinese coal mines for more than 40 years. At present, the output of a FMM face has reached 10-million tons with Chinese-made equipment.
获取价格
An operation optimization method of a fully mechanized coal mining face ...
2019/12/1 The results indicate that collaborative control of coal mining allowed for an efficiency 3.76% higher than under automatic operation mode and 46.03% higher than under manual control; thus, The ...
获取价格
VHFWLRQFRQWURORI DLUIORZ Mechanized Coal Face
Research on dust suppression technology of fully mechanized mining workers by section control of airflow . Fang Chen* China Coal Technology and Engineering Group Chongqing Research Institute, Chongqing, China *Corresponding author e -mail: my-cafe@163 . Abstract. Taking the 20106 fully mechanized mining face of Wangjialing coal mine as
获取价格
CM-YOLOv8: Lightweight YOLO for Coal Mine Fully Mechanized Mining Face
2024/3/14 With the continuous development of deep learning, the application of object detection based on deep neural networks in the coal mine has been expanding. Simultaneously, as the production applications demand higher recognition accuracy, most research chooses to enlarge the depth and parameters of the network to improve accuracy. However, due to the
获取价格
Numerical simulation investigation on optimal dust-exhausting
2021/2/1 To obtain the optimal dust-exhausting airflow volume on the premise that the gas concentration in the fully mechanized caving face of high-gas coal mine can be fully diluted to the safe range, gas-respirable dust (RD) coupling dispersion under various inlet airflow volumes (Q) were simulated numerically.The results show that when Q≥2100 m 3 /min, the gas
获取价格
An operation optimization method of a fully
2019/12/1 The results indicate that collaborative control of coal mining allowed for an efficiency 3.76% higher than under automatic operation mode and 46.03% higher than under manual control; thus, The ...
获取价格
VHFWLRQFRQWURORI DLUIORZ Mechanized Coal Face
Research on dust suppression technology of fully mechanized mining workers by section control of airflow . Fang Chen* China Coal Technology and Engineering Group Chongqing Research Institute, Chongqing, China *Corresponding author e -mail: my-cafe@163 . Abstract. Taking the 20106 fully mechanized mining face of Wangjialing coal mine as
获取价格
CM-YOLOv8: Lightweight YOLO for Coal Mine Fully
2024/3/14 With the continuous development of deep learning, the application of object detection based on deep neural networks in the coal mine has been expanding. Simultaneously, as the production applications demand
获取价格
Numerical simulation investigation on optimal dust-exhausting
2021/2/1 To obtain the optimal dust-exhausting airflow volume on the premise that the gas concentration in the fully mechanized caving face of high-gas coal mine can be fully diluted to the safe range, gas-respirable dust (RD) coupling dispersion under various inlet airflow volumes (Q) were simulated numerically.The results show that when Q≥2100 m 3 /min, the gas
获取价格
Construction of digital twin system for intelligent mining in
The intelligent fully mechanized mining face of coal mine is usually composed of “five machines and one set” such as shearer, scraper conveyor,
获取价格
Numerical simulation study on the coupling mechanism of
2019/11/1 The dual-drum coal mining machine, hydraulic support, front and rear scraper conveyors, reversed loader, crusher, belt conveyor, and other underground mining equipment were modeled based on the equipment used and allocation conditions in the operational rules of the 1109 fully mechanized caving face.
获取价格
Dynamic diffusion characteristics of airflow and coal dust during
2024/12/1 The model construction in this paper is grounded in the real operational circumstances of the 3301 fully mechanized mining face at Xinglongzhuang Coal Mine. A full-size and equal-scale geometric model is constructed using Solidworks 2018. Fig. 1 illustrates the division of areas and the layout of equipment in the fully mechanized mining face ...
获取价格
Study on the air curtain dust control technology with a dust
2020/9/1 See Fig. 3 for the model of the fully mechanized mining face and area division. According to the operating procedures of the #3up 1001 fully mechanized mining face of the Fucun Coal Mine, the mining length is 254 m and the design coal cutting height is 5.2 m, that is, the length and height of the goaf are set at 254 m and 5.2 m, respectively.
获取价格
Respirable dust detection and optimization of dust prevention
2019/11/9 In order to study the harm of respirable dust in fully mechanized coal mining face and reduce the degree of dust hazard, individual sampling and fixed-point sampling method were used to detect the ...
获取价格
Fully Mechanized Excavation System in Underground Coal Mining
2016/10/14 A coal mine in the central district of Botswana is experiencing premature failure of conical picks which mine 150-350 tons of coal/ pick rather than 400 tons/pick specification.
获取价格
Key technologies and equipment for a fully mechanized top-coal
2015/7/21 Thick and ultra-thick coal seams are main coal seams for high production rate and high efficiency in Chinese coal mines, which accounts for 44 % of the total minable coal reserve. A fully mechanized top-coal caving mining method is a main underground coal extraction method for ultra-thick coal seams. The coal extraction technologies for coal seams less than
获取价格
(PDF) Applications of Machine Vision in Coal Mine Fully Mechanized ...
2023/1/1 The realization of intelligent mining is the only method for realizing high-quality development in the coal industry. As the forefront working link in mine production, achieving automatic roadway ...
获取价格
Research on a Carbon Emission Calculation Model and Method for
2022/4/14 bracket in the underground fully mechanized coal mining working face and is also used for spray cooling and dust removal of the coal mining machine and bracket. The use
获取价格
PSYCHROMETRIC ANALYSIS OF A FULLY MECHANIZED UNDERGROUND COAL MINE
2021/1/1 that the newly exposed rocks and heat dissipation of fully mechanized coal mining face’s surrounding rocks are mainly heat sources. Heat sources in the high-temperature mines and influences on ...
获取价格