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
Prevention and control measures for spontaneous combustion of coal gangue
Detection of Spontaneous Combustion Areas of Coal Gangue
2023年12月12日 Scholars have conducted plentiful research and experiments on spontaneous combustion of coal gangue The research is mainly divided into two aspects, the 2023年12月8日 To prevent spontaneous combustion of coal gangue dumps, Tang and Wang developed a type of bentoniteacrylamide superabsorbent hydrogel, which can be used for cooling, controlling combustion, and Detection of Spontaneous Combustion Areas of Coal 2024年10月5日 The techniques, methods, and materials applied in the prevention of coal spontaneous combustion were reviewed in Onifade (measures), Kong et al (methods to Advances in Detection and Monitoring of Coal Spontaneous 2017年9月18日 For a coal gangue to reach the spontaneous ignition point, mine waste spontaneous combustion should meet the following conditions: mine waste with spontaneous combustion tendency, a continuous supply of oxygen, and A review on the mechanism, risk evaluation, and
Fire prevention and extinguishing technologies in coal
2024年11月5日 Coal spontaneous combustion (CSC) is a major issue in the coal mining industry and poses a significant threat to the safety of coal production To address this problem, 2017年9月1日 To control the gas accumulation and spontaneous combustion in goafs of coal mines, many measures such as airflow volume at the working face, gas extraction, and Method for prevention and control of spontaneous combustion of 2018年5月18日 Some technical measures for the prevention and control of coal spontaneous combustion were proposed in various studies However, the way to prevent spontaneous The inducement of coal spontaneous combustion disaster and The new composite acoustic wave can be used to accurately detect hidden fire sources in coal mines, piles, and silos, and support the development of new technologies and equipment for the prevention and control of coal Early Detection of Coal Spontaneous Combustion by
Analysis of the Current Status and Hot Technologies of
2023年8月18日 In order to prevent and control coal spontaneous combustion hazards and construct an efficient early warning system, this paper presents a review of coal spontaneous combustion early warning based on the Web 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 handling This paper Detection of Spontaneous Combustion Areas of Coal 2024年10月5日 Coal spontaneous combustion (CSC) is a multifaceted research domain that has been widely explored in the literature, ranging from analytical and numerical modeling to the development of fire suppression materials and methods A comprehensive review of the literature has revealed several distinct research trajectories, or “roadmaps”, identified through criteria Advances in Detection and Monitoring of Coal Spontaneous Combustion 2017年10月1日 Success of fire control of Coal Gangue Heap in Baijigou Coal Mine proves that comprehensive control technologies are proper and can control spontaneous combustion area of gangue heaps These technologies mainly include loess isolation and grouting slurry, aiming for reducing oxygen supply, energy and temperature of spontaneous combustion areaEnvironment influences and extinguish technology of spontaneous
Research on migration transformation, prevention, and control of
to realize the economical, ecient, and high resource utilization of coal gangue, this paper provides favorable suggestions and support for subsequent indepth research and the implementation of heavy metal prevention and control measures Keywords Coal gangue Heavy metal Lead Migration transformation Prevention and control2021年12月6日 In order to solve the problem of the spontaneous combustion of coal gangue, a coal gangue fireextinguishing material of gel–foam was developed The foaming agent was screened by the Waring blender method with varying foam amounts, and the superabsorbent foam stabilizer was synthesized by free radical polymerization Moreover, the gel–foam was Preparation, Properties and Application of Gel Materials for Coal 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 2017年10月1日 Studies have shown that measures such as covering the surface with loess can greatly reduce the probability of spontaneous combustion when coal gangue is stacked (Zhai et al 2017)Therefore, the Environment influences and extinguish technology of spontaneous
Cocombustion and emission characteristics of coal gangue and
2015年2月18日 The reuse of coal gangue for energy recovery is developing rapidly in China, due to its advantage in achieving both economic and environmental benefits Lowquality coal is often added to elevate the calorific value of the fuel In this paper, the combustion characteristics as well as pollutant emissions (SO2 and NO) of coal gangue, lowquality coal and their blends 2024年11月7日 Scholars have proposed various solutions for the prevention and control of spontaneous combustion of coal gangue dump, such as compacting the coal gangue dumps, covering the surface of the coal Influence of heat pipe layout parameters on the cooling effect of Now control of coal gangue spontaneous combustion has embodied the green, environmental protection and ecological theme as a systematic project For spontaneous combustion area of Daliuta coal Environment influences and extinguish technology of spontaneous 2017年8月1日 Spontaneous combustion of coal seam has been and continues to be a big problem in coal mines It could pose great threat to the safety of the whole mine and all miners, especially when it occurs Method for prevention and control of spontaneous
Underground Disposal of Coal Gangue Backfill in
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 2017年2月1日 Spontaneous combustion in coal gangue dumps leads to pollution in the environment and damages ecosystem and human health Mine operators usually fail to take effective measures against spontaneous Control system of spontaneous combustion in coal gangue 2023年3月31日 Spontaneous combustion gangue hill has attracted great attention due to serious environmental pollution and terrible geological disasters However, the rich thermal resources inside are often ignored In order to control the spontaneous combustion of gangue hill and utilize the internal waste heat resources, this project studied the combined treatment Ignition control and waste heat assessment of spontaneous combustion 2009年11月10日 Simulated experiment about explosion of spontaneous combustion coal gangue dump was carried out on the different conditions of the rainfall or Jia B S, Zhang Q F, Sun F Y, 2003 Prevention and control measure for spontaneous combustion of coal gangue dump Journal of Liaoning Technology University (Natural Science Edition), 22(4 Experimental study on explosive mechanism of spontaneous combustion
Causes, effects and prevention of Spontaneous combustion of Coal
2022年7月11日 In this GRT industry article, we focus on the causes, effects, preventative measures and best practice dust control for spontaneous combustion of coal What about coal fuels’ spontaneous combustion? Firstly, let’s mention and focus on what coal fuels spontaneous combustion and selfheating: Coal consists of carbonaceous material2023年12月8日 The current prevention and control and comprehensive utilization methods of Pb in coal gangue are comprehensively reviewed, and the characteristics of each method are discussedMigration transformation, prevention, and control of typical 2024年2月1日 Scholars have carried out extensive research on the combustion process of coal and coal gangue In the study of the micromechanism of spontaneous combustion，Wang et al [12] explained the chain reaction mechanism of 12 key free radicals during coal spontaneous combustionChen et al [13] constructed a cycle model of free radicals during coal Study on the thermal reaction characteristics and kinetics of coal 2020年8月8日 Summary Coal gangue spontaneous combustion produces toxic and harmful gases Work Safety Key Laboratory on Prevention and Control of Gas and Roof Disasters for Southern Coal Mines (Hunan University of Science and Technology), Xiangtan, ChinaA novel high polymer nanocomposite inhibitor for coal gangue
Preparation, Properties and Application of Gel
2022年1月13日 At present, although roadway excavation has solved the problems of coal mine recovery rates, air leakage in mined−out areas, coal gangue spontaneous combustion, high gas pressure and coal 2019年12月1日 The amount of coal gangue, a byproduct of coal mining and washing, is rapidly increasing with the growing trend of energy consumption The accumulated coal gangue without appropriate utilization Comprehensive utilization and environmental risks of coal gangue2020年5月1日 Experimental studies on medium to large scale tests have been used to measure the spontaneous combustion liability of coal by Akgün Arisoy, and Onifade [18], [19]Researches on the influence of atmospheric conditions on spontaneous combustion of coal stockpiles have been documented [20], [21], [22]Smallscale tests (20–100 g coal) have been A review of research on spontaneous combustion of coal2020年3月15日 In order to solve the problem of the spontaneous combustion of coal gangue, a coal gangue fireextinguishing material of gel–foam was developed The foaming agent was screened by the Waring blender ExpandFire prevention and control using gelstabilization foam to
Research progress on gravity heat pipe technology to prevent
2024年5月13日 During coal storage and transportation, spontaneous combustion occurs occasionally Heat pipes, as new fire prevention technology, have been applied and explored in the prevention and control of spontaneous combustion in coal yards This paper combines the mechanism of spontaneous combustion in coal yards and the advantages and disadvantages 2022年10月13日 To further study the problem of spontaneous combustion of coal gangue mountains, a multifield coupled simulation model was established based on the mathematical models of temperature field, gas Numerical Simulation of the Dynamic Change Law of Spontaneous 2020年8月28日 At present, inhibitors have been widely used in the field of coal fire prevention and control, but there are some defects in the use of them So it is necessary to find a new practical and economical inhibitor Dissolvable tinyfoam extinguisher (DTE) is environmentfriendly, high in thermal stability, and fast in cooling In view of the good performance of the Inhibition of coal spontaneous combustion by an environment 2021年4月4日 Coal and coal gangue spontaneous combustion (CGSC) occurs globally, causing significant environmental pollution However, its emissions are poorly quantified and are overlooked in global or Ambient PM 25 and Related Health Impacts of Spontaneous Combustion of
Study on controlling factors and developing a ScienceDirect
2024年2月1日 To date, a considerable amount of research has been conducted on the mechanism, influencing factors, and prevention and control of spontaneous coal gangue combustion [[10], [11], [12], [13]]It is generally accepted that the spontaneous combustion of coal gangue is due to both pyrite and coal organic componentswhich has important guiding significancefor the prevention and control of spontaneous combustion of coal gangue mountains and the detection of heat source location 2 MULTIFIELD COUPLING MATHEMATICAL MODEL FOR SPONTANEOUS COMBUSTION OF COAL GANGUE MOUNTAINS 21 MultifieldCoupling Mechanism of Spontaneous Combustion of Coal Gangue Numerical Simulation of the Dynamic Change Law of Spontaneous 2020年8月19日 Findings indicated that the addition of bactericide effectively inhibited the oxidation of Fe2+, preventing pH decreases and oxidationreduction potential increases Oxidation of pyrite in the coal gangue dumps usually results in acidification and spontaneous combustion, causing many environmental problems such as air, soil, and water pollution The Effect of Bactericides on Control of Acidification Pollution and 2024年11月5日 Coal spontaneous combustion (CSC) is a major issue in the coal mining industry and poses a significant threat to the safety of coal production To address this problem, various technologies for CSC prevention and extinguishing have been developed Despite this, a bibliometric and systematic review of CSC prevention and extinguishing technologies (PAETs) Fire prevention and extinguishing technologies in coal spontaneous
Prevention and control of spontaneous combustion/fire in coal
2021年8月19日 The oxidation characteristics and spontaneous combustion (SC) tendency of raw longflame coal (RC), watersoaked 200day coal (S200), preoxidized watersoaked coal at 200 °C (O200S200), and pre 2017年6月3日 Currently, techniques for prevention and control of coal spontaneous combustion mainly include preventive grouting Colaizzi 2004), inert gas injection (Kim 2004), gelfoam material (Zhang et al Characteristics of Foamed Gel for Coal Spontaneous Combustion 2024年6月3日 China’s energy structure is characterized by abundant coal resources, which have become the pillar of national economic growth and cannot be ignored to promote rapid economic development [1,2,3]However, with the diversity of coal reserves and the complexity of geological structure, coal spontaneous combustion (CSC) is representative of the frequent Exploration and Frontier of Coal Spontaneous Combustion Fire Prevention Primary causes of spontaneous combustion In underground mines, the primary cause of spontaneous combustion is crushed coal (either left in goaf areas or in highly stressed pillars) that is in contact with a sluggish airflow Good 1 Spontaneous Combustion Testing, Querol Aragón, E; García Torrent, J; Cámara Rascón, A Dep Ing Química yPrevention and Control of Spontaneous Combustion Best
Environment influences and extinguish technology of spontaneous
2017年10月1日 Semantic Scholar extracted view of "Environment influences and extinguish technology of spontaneous combustion of coal gangue heap of Baijigou inhibitor to prevent and control coal gangue spontaneous Expand 10 1 Excerpt; Save gangue and to implement the effective prevention,the spontaneous combustion evaluation 2022年10月13日 To further study the problem of spontaneous combustion of coal gangue mountains, a multifield coupled simulation model was established based on the mathematical models of temperature field, gas concentration field, and seepage velocity field In addition, the dynamic development law of these three p Numerical Simulation of the Dynamic Change Law of Spontaneous 2015年1月1日 When the temperature reaches the ignition point, the residual coal and other combustibles in the gangue can ignite spontaneously The spontaneous combustion of coal gangue piles leads to an The environmental pollution and control of coal gangue spontaneous 2024年2月1日 Representative coal gangue in Currently, most coal mines still adopt gangue discharge, which not only occupies land but also poses a risk of spontaneous combustion, CG2, CG3 and CG4 samples in CG in these four representative areas does not exceed the prevention and control value of soil pollution in China's agricultural Representative coal gangue in China: Physical and chemical