MTW European Type Trapezium Mill
Input size:30-50mm
Capacity: 3-50t/h
LM Vertical Roller Mill
Input size:38-65mm
Capacity: 13-70t/h
Raymond Mill
Input size:20-30mm
Capacity: 0.8-9.5t/h
Sand powder vertical mill
Input size:30-55mm
Capacity: 30-900t/h
LUM series superfine vertical roller grinding mill
Input size:10-20mm
Capacity: 5-18t/h
MW Micro Powder Mill
Input size:≤20mm
Capacity: 0.5-12t/h
LM Vertical Slag Mill
Input size:38-65mm
Capacity: 7-100t/h
LM Vertical Coal Mill
Input size:≤50mm
Capacity: 5-100t/h
TGM Trapezium Mill
Input size:25-40mm
Capacity: 3-36t/h
MB5X Pendulum Roller Grinding Mill
Input size:25-55mm
Capacity: 4-100t/h
Straight-Through Centrifugal Mill
Input size:30-40mm
Capacity: 15-45t/h
The harm to the body caused by coal gangue burning
ReviewComprehensive utilization and environmental risks of
2019年12月1日 Being longterm soaked by surface and ground water, the toxic elements in coal gangue can be released, which pollutes the surrounding ecosystem and harms human through bioaccumulation2018年1月1日 Inhaling particulate matters may cause some dangerous diseases, including chronic obstructive pulmonary disease (COPD) and lung cancer (Cornell, 2016) The sulfur, in Human health and environmental impacts of coal 2024年2月1日 Based on the source and distribution of coal gangue (CG) in China, this study introduces the current situation of CG storage in China and the problems existing in the Representative coal gangue in China: Physical and chemical 2014年1月5日 The pathway of endemic arsenism caused by coal burning in China, similar to endemic fluorosis, can be summarized as follows: arsenic is released into closed rooms during Coal utilization in China: environmental impacts and human health
Comprehensive utilization and environmental risks of coal gangue
2019年12月1日 Coal gangue (CG) is an associated product in the process of coal mining and washing, accounting for approximately 1015% of the raw coal production, and in some small 2017年9月18日 Spontaneous combustion of mine waste is caused by oxidation of combustible components in coal gangue, which releases heat and eventually reaches the burning point in the middle of the stockpileA review on the mechanism, risk evaluation, and 2021年7月7日 In the process of coal gangue surface accumulation and underground filling disposal, the heavy metals contained in coal gangue will inevitably precipitate out and migrate, Explanation of heavy metal pollution in coal mines of china 2023年12月8日 Spontaneous combustion of coal gangue dumps not only releases toxic and harmful gases, polluting the environment, but also leads to explosion accidents and casualties Detection of Spontaneous Combustion Areas of Coal Gangue
Assessing the health risks of coalburning arsenicinduced
2023年12月20日 Therefore, it is imperative to assess the risk of coalburninginduced skin damage caused by arsenic exposure in order to facilitate early prevention and control of 2023年12月8日 Spontaneous combustion of coal gangue dumps not only releases toxic and harmful gases, polluting the environment, but also leads to explosion accidents and casualties due to improper handlingDetection of Spontaneous Combustion Areas of 2022年9月15日 Coal gangue is one of the industrial solid wastes that may harm the human body through the ecosystem for a long time Using coal gangue in geopolymer preparation can effectively reduce cement (PDF) Activation Mechanism of Coal Gangue and 2017年9月18日 Environmental problems caused by coal mining and utilization are becoming increasingly serious In recent times, the ecology, security, and sustainable development of modern mines have become the development A review on the mechanism, risk evaluation, and
Excess sulfur and Fe elements drive changes in soil and
2020年6月26日 Coal gangue piles accumulate outside mines and can persist for years, negatively impacting the regional environment To determine the main cause of soil pollution at coal gangues, several coal 2024年11月7日 Existing research has found that the number, insertion depth and angle, filling rate, and working fluid of heat pipe (HP) can affect the distribution of temperature field inside coal gangue dumpsInfluence of heat pipe layout parameters on the cooling 2023年12月8日 Coal gangue is one of China’s main industrial solid wastes, which contains various harmful heavy metal elements, such as lead (Pb) The longterm accumulation of coal gangue causes Pb to migrate to the surrounding environment due to weathering and rain erosion, eventually endangering human life and health with its continuous accumulation in the food Migration transformation, prevention, and control of typical 2019年5月1日 Gangue is the main solid waste in coal mine areas In China, there are more than 1700 coal waste piles, totaling approximately 45 billion tons, with a rate of increase of 350 million tons per year []The longterm accumulation of a large amount of gangue will have a serious impact on the ecological environment of the mining area [2,3]For example, after rain, harmful Quantitative Inversion of Fixed Carbon Content in Coal Gangue
Characteristics of sulfatereducing bacteria and organic bactericides
2020年11月1日 Highsalinity acid drainage and spontaneous combustion caused by the oxidation of coal gangue piles are one of the pollution sources that seriously harm the environment in coal mine areas Using sulfatereducing bacteria, Bacillus subtilis S19, isolated and identified in the laboratory, a bactericide, which can be used in cooperation with S19, was 2020年2月20日 A large amount of coal gangue buildup may be a potential fire hazard associated with the heat released by microorganisms accumulating to the point of spontaneous combustion in the presence of unburned coal, pyrite (FeS 2) and oxygenCoal gangue is likely to cause largescale fire and blast disasters, and produce a significant amount of toxic emissions Reactivity activation of waste coal gangue and its impact on 2024年6月4日 The coal industry is an important pillar industry of economic development in China, with coal mining produced a lot of coal gangue, which is occupied land, and pollution of the environment, and the production and life of coalproducing areas have been seriously affected, coal gangue has become a heavy burden restricting the sustainable development of coal Characteristics of Coal Gangue and Present Situation and 2020年11月1日 Hu et al (2009) proposed the application of the SRB strain to the remediation of acidic contamination of coal gangue piles They reported that the pH of the coal gangue leaching solution increased from 289 to 702 after 21 d of incubation with a small amount of carbon Tang et al (2014) isolated an SRB strain from the soil of a coal mine in Characteristics of sulfatereducing bacteria and organic bactericides
Study on the Reactivity Activation of Coal
2023年9月21日 In this study, the research aim is to enhance the activity index of activated coal gangue and study its activation mechanism The activation process of coal gangue was optimized through orthogonal tests, and the Back 2023年12月25日 Coal gangue is one of the industrial solid wastes that may harm the human body through the ecosystem for a long time Using coal gangue in geopolymer preparation can effectively reduce cement Study on Extraction Valuable Metal Elements by CoRoasting Coal Gangue 2012年5月1日 Coal gangue is one of the largest industrial solid wastes in China; the comprehensive utilization of coal gangue has important social, economic and environmental benefits In this paper, the coal gangue and comprehensive utilization have been discussed in detail Through the survey results, expounds the development of the use of coal gangue and The Current Situation of Comprehensive Utilization of Coal Gangue Coal gangue is one of the largest mine solid wastes in China, and its discharge and stockpiling have caused resource waste, environmental pollution and other problems Starting from the resource characteristics of coal gangue, this paper systematically discusses the ways and research status of coal gangue resource utilization, mainly including: extracting and recovering Research Progress on Comprehensive Utilization of Coal Gangue
Understanding the release, migration, and risk of heavy metals in coal
2024年1月5日 The lack of understanding on the environmental fate and implications of heavy metals in coal gangue (CG) has restrained its utilization Conventional extraction methods provide empirical measures of heavy metal speciation, lacking a detailed description of bound strength, which limits longterm risk assessmentIn this study, the releasing and migrating behavior of 2019年3月29日 The separation of coal and gangue is an important aspect of coal production, which can improve coal quality, save energy, reduce consumption, and enable the rational use of resourcesSeparation of gangue from coal based on supplementary2023年12月8日 Spontaneous combustion of coal gangue dumps not only releases toxic and harmful gases, polluting the environment, but also leads to explosion accidents and casualties due to improper handling This paper focuses on delineating the fire area, constructing a comprehensive fire prevention and extinguishing system, and restoring the ecological Detection of Spontaneous Combustion Areas of Coal Gangue 2019年12月19日 Coal flow in belt conveyors is often mixed with foreign objects, such as anchor rods, angle irons, wooden bars, gangue, and large coal chunks, leading to belt tearing, blockages at transfer points An ImageBased Hierarchical Deep Learning Framework for Coal and Gangue
Preventing water inrush hazards in coal mines by coal gangue
2023年9月13日 The backfilling mining method that fills gobs with coal gangue can prevent water inrush hazards, protect groundwater resources, and protect the ecological environment of the mining area However, initial conditions including the particle size distribution of gangue and the stress environment may affect the seepage characteristics of gangue backfill and inrush 2021年3月11日 Coal gangue is an industrial solid waste inevitably produced in coal mining and coal washing, and its emissions account for approximately 10%–15% of coal production (Zhou et al 2014a, b)China is the country with the highest coal production in the world, and a large amount of coal gangue waste is piled on the surface at mining sites to form coal gangue hill, Characteristics of leaching of heavy metals from lowsulfur coal gangue In recent years,coal gangue backfill mining technology has been widely applied as one of the green mining technologies The coal gangue filling in goaf has been in the acidic or alkaline mine water environment for a long time, its heavy metal elements in goaf have the risk of migrating to the floor and polluting groundwater In this paper,through the static immersion test of coal Numerical simulation on migration effects of heavy metal 2024年8月22日 The acid pollution produced from coal gangue piles is a global environmental problem Terminal technologies, such as neutralization, precipitation, adsorption, ion exchange, membrane technology, biological treatment, and electrochemistry, have been developed for acid mine drainage (AMD) treatment These technologies for treating pollutants with low Mechanism and In Situ Prevention of Oxidation in Coal Gangue
Repairing effects of sulfatereducing bacteria on the
2020年4月23日 Coal is the main energy source in China, which can produce a large amount of coal gangue in the process of mining In the process of accumulation, coal gangue can release a variety of harmful ions 2022年7月1日 Coal gangue, as a solid waste produced in the process of coal mining, has caused great harm to the environment and society It is the most practical means to make concrete as coarse aggregateDeterioration mechanism of coal gangue concrete under the 2022年8月9日 Coal gangue spontaneous combustion is a serious catastrophe associated with mining activities Generally, the areas of coal gangue spontaneous combustion are regions of tremendous heat accumulation Mastering the regularity of deep temperature distribution and eliminating internal heat is an effective method to control spontaneous combustion In this Internal Temperature Variation on Spontaneous Combustion of Coal Gangue 2022年8月11日 the hazards of coal gangue include the potential ecological and environmental impacts caused by harmful heavy metals (Dang et al 1998) The stacking of coal gangue will cause the soil around the waste rock mountain to be polluted by the heavy metals in the coal gangue, and the main cause is the weathering of the coal gangue (Liu et al 2003)Characteristics of leaching of heavy metals from low
Temperature Variation on Coal Gangue Dumps under the
2021年7月1日 Coal gangue in longterm accumulation will often appear spontaneous combustion phenomenon Generally, the disaster caused by it has always been one of the serious problems threatening the health 2024年6月27日 Coal gangue is a solid waste, which can cause serious pollution of the atmosphere and water sources due to its longterm accumulation In this article, the influence of CO2cured coal gangue on (PDF) The Influence of CO2 Curing on the Properties of Coal Gangue In this article,the harm of gangue dump was elaborated systematically,especially the spontaneous combustion of gangue dump,which polluts the air and destroys the water quality and the soilThe major influential factors were analyzed by experiment,and it was made out that the irrational management will lead to geologic disasters such as collapse and explosion and to the Harm of Gangue Dump and Cause Analysis of Spontaneous 2022年11月25日 China’s total coal production in 2021 exceeded 413 billion tons, 52% of the world’s total Coal gangue, a solid waste of coal mining accounts for 15–20% of coal production, when directly discharged on the ground surface as waste heaps, it occupies large areas of land and cause environmental pollution This paper summarizes the existing gangue backfilling Underground Disposal of Coal Gangue Backfill in China MDPI
(PDF) Activation Mechanism of Coal Gangue and
2022年9月15日 Coal gangue is one of the industrial solid wastes that may harm the human body through the ecosystem for a long time Using coal gangue in geopolymer preparation can effectively reduce cement 2017年9月18日 Environmental problems caused by coal mining and utilization are becoming increasingly serious In recent times, the ecology, security, and sustainable development of modern mines have become the development A review on the mechanism, risk evaluation, and 2020年6月26日 Coal gangue piles accumulate outside mines and can persist for years, negatively impacting the regional environment To determine the main cause of soil pollution at coal gangues, several coal Excess sulfur and Fe elements drive changes in soil and2024年11月7日 Existing research has found that the number, insertion depth and angle, filling rate, and working fluid of heat pipe (HP) can affect the distribution of temperature field inside coal gangue dumpsInfluence of heat pipe layout parameters on the cooling
Migration transformation, prevention, and control of typical
2023年12月8日 Coal gangue is one of China’s main industrial solid wastes, which contains various harmful heavy metal elements, such as lead (Pb) The longterm accumulation of coal gangue causes Pb to migrate to the surrounding environment due to weathering and rain erosion, eventually endangering human life and health with its continuous accumulation in the food 2019年5月1日 Gangue is the main solid waste in coal mine areas In China, there are more than 1700 coal waste piles, totaling approximately 45 billion tons, with a rate of increase of 350 million tons per year []The longterm accumulation of a large amount of gangue will have a serious impact on the ecological environment of the mining area [2,3]For example, after rain, harmful Quantitative Inversion of Fixed Carbon Content in Coal Gangue 2020年11月1日 Highsalinity acid drainage and spontaneous combustion caused by the oxidation of coal gangue piles are one of the pollution sources that seriously harm the environment in coal mine areas Using sulfatereducing bacteria, Bacillus subtilis S19, isolated and identified in the laboratory, a bactericide, which can be used in cooperation with S19, was Characteristics of sulfatereducing bacteria and organic bactericides 2020年2月20日 A large amount of coal gangue buildup may be a potential fire hazard associated with the heat released by microorganisms accumulating to the point of spontaneous combustion in the presence of unburned coal, pyrite (FeS 2) and oxygenCoal gangue is likely to cause largescale fire and blast disasters, and produce a significant amount of toxic emissions Reactivity activation of waste coal gangue and its impact on
Characteristics of Coal Gangue and Present Situation and
2024年6月4日 The coal industry is an important pillar industry of economic development in China, with coal mining produced a lot of coal gangue, which is occupied land, and pollution of the environment, and the production and life of coalproducing areas have been seriously affected, coal gangue has become a heavy burden restricting the sustainable development of coal 2020年11月1日 Hu et al (2009) proposed the application of the SRB strain to the remediation of acidic contamination of coal gangue piles They reported that the pH of the coal gangue leaching solution increased from 289 to 702 after 21 d of incubation with a small amount of carbon Tang et al (2014) isolated an SRB strain from the soil of a coal mine in Characteristics of sulfatereducing bacteria and organic bactericides