a comprehensive literature review of mining extraction and industry was made The review discusses thoroughly mining industry from different viewpoints that includes general introduction historical background of mining industry mines development and life cycle mining extraction techniques machines used in mining processes mineral processing environmental effect on operators and the
Get PriceThe spontaneous combustion of coal gangue generates a large amount of toxic and harmful gasses such as SO 2 CO H 2 S and benzo α castor which pollute the atmospheric environment Wang et al 2024 Li et al 2024 Wang 2024 and are more likely to cause more devastating disasters such as the photovoltaic power plant the toxic and harmful gasses produced by coal
Get PriceAn investigation focused on the transformation and distribution behaviors of trace elements and natural radionuclides around a coal gangue brick plant was conducted Simultaneous sampling of coal gangue brick fly ash and flue gas were implemented Soil soybean and earthworm samples around the bri …
Get PriceIn recent years with the development of information technology and artificial intelligence the monitoring and prediction of geological disasters requires real time dynamic and the early warning process to be more intelligent A digital twin can better combine physical space and information space
Get PriceThe invention relates to a method for conducting ecological restoration in a mine geological disaster region The method includes the following steps 1 breaking coal gangue through a breaking machine into broken blocks with the diameter as 2 5cm utilizing the coal gangue to pave the collapsed and sedimentation region and leveling the land to be treated 2 paving a separation layer on the
Get PriceIndonesia has the world s greatest at risk population for volcano hazards and is the most volcanically active nation on Earth Before the Mount Merapi eruption the Indonesian Center for Volcanology and Geologic Hazard Mitigation CVGHM requested assistance from the Volcano Disaster Assistance Program VDAP to improve volcano monitoring VDAP revolutionized volcano monitoring in
Get PriceIn this paper we propose a passive wireless sensing system based on the second order parity time symmetric system operated around the exceptional point for the monitoring of coal gangue mixing which has an LC resonance structure consisting of a spiral resonant coil and a parallel plate capacitor at the wireless sensing end of the system
Get PriceExperiment results showed that the algorithm has the highest detection accuracy and efficiency and can correctly identify and position coal and gangue under complex conditions with high confidence values Compared with other algorithms the mAP value of the proposed method is increased by % at most
Get PriceThe coal gangue is discarded and used occupying a large area of land The escape or leaching of sulfide in coal gangue will pollute the atmosphere farmland and water bodies Gangue hills can also ignite spontaneously and cause fires or collapse during the rainy season blocking the river and causing disasters
Get PriceThe main contributions of the work in this paper are the following 1 propose a dynamic target detection method and establish a data set of coal and gangue 2 propose a movement planning method in line with the coal gangue sorting strategy and 3 control the robot to complete the sorting task
Get PriceThe objectives of this study are 1 to reclaim the coal mined areas using the coal gangue mixed with maize straw fly ash and water retention agent and 2 to optimize the proportion of exogenous materials maize straw fly ash and water retention agent and coal gangue for better plant growth Section snippets Study site characteristics
Get PriceMoreover the gel foam was used in a spontaneous combustion of coal gangue mountain field practice The results showed that when the mass fraction of sodium dodecyl sulfonate and coconut oil amide propyl betaine was % and 4 6 the foaming amount was as high as 1500 mL When the mass ratio of chitosan to acrylic acid was 1 6 the
Get PriceSmoliński et al 15 obtained the change law of the temperature field of the gangue mountain by monitoring the atmospheric emissions above the gangue mountain for 21 months Krzysztof et al 16 determined the spontaneous combustion tendency of coal gangue mountains by experimentally measuring the properties of coal gangue
Get PriceCoal mining in Indiana started in the early 1830s resulting in approximately 2 100 underground mines Records of these mines have been maintained at the Indiana Geological and Water Survey IGWS for more than 100 years Of these 2 100 mines approximately 600 have detailed maps and approximately 1 500 of the mines are poorly documented
Get PriceThe environmental impact of coal gangue mountain and governance [J] The Coke Coal Science and Technology of Shanxi 2024 2 44 46 Wu xiaohua Ye jin xia Xia chunying etal Yanzhou coal mine geological environment field Situation and Countermeasures [J] Coal Geology Exploration 2024 36 1 53 57 Environmental Monitoring in
Get PriceThe first part of the monograph is dedicated to the issues of optimising human functioning in the contemporary work environment from the perspective of work and organisational psychology
Get PricePolish Academy of Sciences Archives of Mining Sciences AMS publish research results of wide interest in all fields of mining sciences which include rock mechanics mining engineering mineral processing geotechnical engineering and tunnelling mining and engineering geology minig geodesy and geophysics ventilation systems environmental protection in mining and economical aspects in mining
Get PriceThere are many methods for monitoring the spontaneous combustion of gangue piles Such as direct detection of temperature sensor or thermal infrared method to obtain the surface temperature of gangue pile In the gangue pile in the heating stage the internal temperature is transferred to the surroundings with the heat source as the center
Get Price1 Coal gangue is a solid waste produced together with coal in the process of coal mining It is produced in the process of coal mine construction mining washing and processing and its emission is equivalent to 10 15% of coal production 2 At present the utilization rate of coal gangue in China is still relatively low
Get PriceThe paper is based on data collection and field investigation in china and discusses the harm of coal gangue from different angles especially the harm of gangue spontaneous combustion
Get PriceCoal fire disaster caused by the spontaneous combustion of coal has always been one of the serious problems that threaten the safety of coal mining In our study we first solved the dynamic parameters and mechanical functions of coal gangue using the Achar differential method and Coats Redfern integral method Then based on the flow and heat transfer mechanism of hot rod vapor liquid two
Get PriceCoal gangue stack occupation area brining about land resources waste of mining area is one of the geological disasters At the same time it leads to the resulting of spontaneous combustion of coal and waste rock noxious liquid leaching dust and natural radioactive and impacts on the environment of mining field seriously
Get Pricein tangshan mine there are four engineering problems including the layout of multiple seam mining system serious environmental damages caused by gangue accumulation and surface collapse nearly 100 million tons of three under coal coal trapped under buildings water bodies and railways to be released and the control accuracy of stratum …
Get PriceAn online monitoring system was installed The results of the field monitoring showed that the curing temperature significantly varied from 26°C near the main gate to 37°C near the tailgate The curing humidity had the same trends increasing from 60% relative humidity RH near the main gate to 81% RH near the tailgate
Get PriceIndian Geotechnical Journal Coal gangue is a mine waste generated during the mineral processing phase of coal production With the surge in demand for coal in thermal power steel and cement generation industries the rate of coal gangue generation has reached unprecedented heights
Get PriceRelates to a gangue dump monitoring method which comprises the following steps treating the waste rock hills and constructing steps side slopes and platforms uniformly arranging a temperature measuring instrument probe on each step and arranging one temperature measuring probe every 90 110 m firstly placing a probe of a thermodetector in a rolled coal gangue step and deploying from
Get PriceThe average UCS and elastic modulus of group B coal gangue particle size of 5∼10 mm are MPa and GPa respectively Compared with group A the average UCS values of groups B and C decrease by % and % respectively and the corresponding average elastic moduli decrease by % and % respectively
Get PriceThis Research Topic is Volume II of a series The previous volume can be found here Mine Engineering Geological Disaster Forecasting Monitoring and Prevention With the development of mining engineering facing more and more complex geological conditions the geological disasters during resource exploitation are more frequent In the process of mineral resources exploitation how to realize
Get PriceDisasters such as rock bursts and mine earthquakes became increasingly serious with the increase in mining depth in Erdos Coal Field and became serious problems that restrict high strength continuous mining of coal mines In this study strata movement and energy polling distribution of ultrathick weak bonding sandstone layers were controlled by the local filling caving multi faces
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