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
coal mine filling
Development of Coal Mine Filling Paste with
2021年1月31日 Based on the above two points, this paper studies the paste strength, backfill strength, and pumpability parameters in coal mine paste filling and determines the early and later strength of coal mine paste, as well as the 结果表明，粉煤灰可有效改善煤基固废充填材料新拌浆体的流动性能，但粉煤灰掺量超过80%，不利于充填体抗压强度进一步提升；当粉煤灰掺量为60%，水胶比 (水与胶质量比)为10时，加 大掺量粉煤灰基矿井充填材料的制备、工作性能与微观结构 2024年1月3日 Applying coalbased solid waste in the preparation of mine filling materials to solve the prob lems of stratum collapse and ecological damage caused by coal mining can 大掺量粉煤灰基矿井充填材料的制备 工作性能与微观结构的研究摘要 从充填材料、浆体输送、充填效果以及矿山适用4个方面深入分析了目前煤矿广为应用的综合机械化固体充填技术、超高水材料充填技术、膏体充填技术和煤矿高浓度胶结充填技术的特 煤矿充填技术发展趋势与选用方法【维普期刊官网】 中文
A novel CO2 foaming agent for the preparation of foamed
2022年12月15日 The importance of coal mine foam filling for mine fire prevention safety improvement after filling by alcohol lamp extinguishing time was characterized Earlier 2023年11月23日 This paper expounds on the technological process of technology of filling goaf with coal gangue slurry, establishes three types of slurry filling systems, such as centralized Technology and engineering test of filling goaf with coal2021年10月12日 After years of development, paste backfill technology has become an important part of China’s green safety mine construction and coal green mining technology system in the Development overview of paste backfill technology in China’s coal mines 2023年8月2日 In this paper, by combining theoretical analysis and similar simulation experiments, compressive strength is used as the research parameter to conduct Similar simulation of overburden movement characteristics
Development of Coal Mine Filling Paste with Certain
2021年1月31日 backfill strength, and pumpability parameters in coal mine paste filling and determines the early and later strength of coal mine paste, as well as the pumpability 2021年1月31日 In coal mine paste filling technology, geomaterials like coal gangue and fly ash are used as the main component, and cement is applied as the cementing material In the mining production,(PDF) Development of Coal Mine Filling Paste 2021年6月5日 Coal mine paste filling technology can effectively solve the problems caused by coal mining and is a key technology to realize green mining and is widely used in coal mining (Qi et al 2019; Qian et al 2018; Qi 2020)In coal mine paste filling technology, the performance of filling materials directly determines the filling effect of a coal mine; and the cemented paste Study on the effect of mixing water on coal mine filling2023年11月23日 Based on the greening and low interference disposal requirements of coal gangue in highyield and highefficiency mines in Inner Mongolia and Shaanxi, and by integrating the existing theories and Technology and engineering test of filling goaf with coal
Gangue grouting filling in subsequent space of coal green mining
2024年3月27日 Underground backfilling stands out as a crucial technological strategy for the ecofriendly and effective management of solid waste in mining operations However, existing backfilling techniques have led to increased production processes at the working face, resulting in a reduction in coal extraction efficiency Addressing the temporal and spatial interference 2023年7月8日 This article proposes a coal minefilling material Internet of Things (IoT) perception network framework to address the shortcomings in perception and intelligence faced by solid backfilling in Research on the data validity of a coal mine solid backfill 2024年5月20日 It is found that coal mine filling mining is a green disposal method with relatively reliable technical means, low supervision cost and largescale disposal of CSW in the comprehensive utilization of CSW in China Furthermore, an analysis was conducted on the current research status of key technologies in the CSW filling and mining process Research status of comprehensive utilization of coalbased 2023年9月20日 MC was industrially produced and tested in an industrial application in Changxing coal mine and Mahuangliang coal mine in Yulin City The downhole core UCS of the two coal mines were 773 and 1262 MPa after 28 d, and the leaching indexes met the standard GB/T 14848 (Ⅲ) Both of which reach the requisites for safe underground fillingDevelopment and field application of a modified magnesium
Frontiers Study on green filling mining technology and its
2023年1月29日 For green filling mining in coal mines, scholars throughout the world have performed much work and obtained numerous research results However, the selection of filling materials, construction technology and field application for green filling mining in deep coal mines must still be studied In this paper, comprehensive research methods such as 2024年7月8日 Therefore, it is determined that Scheme 2, ie general face long limit thickness single long wall backward integrated mining paste filling coal mining method, is the optimal mining plan for this Preferential evaluation of coal filling mining scheme under 2024年7月31日 Filling mining has been widely utilized in metal mines and underground coal mines While the endwall mining of openpit coal mines requires a comprehensive study of filling materials in conjunction with filling mining techniques In this regard, the use of stripping waste rock as an ideal filling aggregate is crucialStudy on Ratio of Filling Material in Openpit Coal Mine In the process of coal resource exploitation, processing and utilization, there are a large number of coalbased solid wastes, such as coal gangue, fly ash, coal gasification slag, which pollute the environment, occupy land resources and are difficult to be disposed Applying coalbased solid waste in the preparation of mine filling materials to solve the problems of stratum collapse and Study on preparation, working performance and microstructure of coal
Coal Mine Solid Waste Backfill Process in China:
2023年9月8日 Coal mine solid waste backfill is a coal mining method employed to safeguard subterranean and surface geological formations, as well as water resources, against impairment It stands as a pivotal technical approach for 2024年9月27日 Using the YRS to prepare coalmining filling materials is feasible, as indicated Mixing fly ash and YRS in the filling materials can reduce clinker content, save costs, and improve the fluidity and compactness of the filling cementitious materials However, the particle grading effect of the YRS is poor, the surface area is significant, and it Effect and mechanism of activators on the properties of Research on filling effect determination of solid filling working face in coal mine based on multicriteria decision analysis Authors: Lei Bo, Zihang Zhang, Yang Liu, Shangqing Yang Authors Info Claims ICCSMT '23: Proceedings of the 2023 4th International Conference on Computer Science and Management TechnologyResearch on filling effect determination of solid filling In coal mine paste filling technology, geomaterials like coal gangue and fly ash are used as the main component, and cement is applied as the cementing materialCoal mine paste filling process Download Scientific Diagram
Mine Filling an overview ScienceDirect Topics
Mining waste utilization: case studies and good practices Liyuan Wu, Yulin Pan, in Managing Mining and Minerals Processing Wastes, 2023 1213 Utilization of mine waste rocks Based on the actual filling demands of Jinchuan Mine, excellent filling aggregate can be obtained when the ratio of mine waste rock to tailings is between 5:5 and 7:3 [17]In order to meet the strength 2023年6月26日 With the demand for green mining in coal mines, filling mining is becoming more and more popular, resulting in more complex production systems and more potential safety hazards Therefore, it is very important to evaluate the safety of filling mining mines and propose improvement measures Aiming at the safety evaluation method of filling mining mines, this Safety Evaluation and Simulation Research of Filling Mining Mine Applying coalbased solid waste in the preparation of mine filling materials to solve the problems of stratum collapse and ecological damage caused by coal mining can scientifically deal with solid waste, protect the environment, and ensure the sustainable大掺量粉煤灰基矿井充填材料的制备、工作性能与微观结构 2023年2月17日 Coal mine filling paste is an ideal material with good fluidity, uniformity, and low water consumption In the experiment, coal gangue was used as the main aggregate, which is rich in source, convenient for drawing materials, and low in price while reducing the harm caused by the stacking of gangue on the ground Cement and gypsum are The Application of Fuzzy Mathematics in the Optimization of
Study on the Partial Paste Backfill Mining Method in a Fully
2024年5月22日 Paste backfill mining is an significant part of green coal mining, which can improve resource utilization and extend the service life of mines It is important for solving the “three under, one above” mining problem and avoiding industrial wastes such as coal gangue and fly ash that occupy farmland and pollute the environment To address the difficult filling The characteristics of CMCB cementedfill mining technology in gently inclined coal seams can be summarized as a longwall layout, shortwall mining, interval coal mining, and stepwise filling The working face does not use hydraulic supports or filling pressure pumps, which greatly reduces the initial investment and mining costCemented Backfilling Mining Technology for Gently Inclined Coal 2021年6月17日 关键词: 固体充填, 胶凝材料, 矿粉, 充填效率, 顶板管理 Abstract: In order to solve the problems of high filling cost and low filling efficiency of the coal mining under buildings,water bodies and railways, we mainly use mineral powder, a lowcost hydraulic cementitious material, supplemented by a small amount of gypsum and silicate clinker, an earlysetting, lowcost 固体充填胶凝材料试验研究与应用Conventional hydraulic filling requires additional work elements as well as man power for its application in underground coal mines For instance, it requires sophisticated underground porous retaining barricade structures, rehandling of surplus water and there is a risk associated in form of failure and flow of backfilled material Paste Backfilling in Underground Coal Mines ISTI Portal
Research on Mechanical Properties and
2024年6月3日 To solve the problems of brittleness, high cost, and the complicated construction process of traditional filling materials for filling abandoned roadways, various aspects of the physical and mechanical 2024年7月1日 In the longterm practice of water inrush control, a waterconserving coal mining method based on filling mining has been gradually established in recent years [10], [11]This method, which involves controlling the development of the waterconducting fracture zone, can be summarized as overburden grouting and goaf filling in accordance with the waterloss mode of EcologicalBased Mining: A Coal–Water–Thermal2019年12月1日 In modern mining, waste material is often backfilled into underground voids or open pits after the precious minerals are extracted Such backfill practice has been well adopted in various mining methods, ie cutandfill (Henderson et al, 1998), sublevel opening stoping (Emad et al, 2015), and open pit mining (Lu et al, 2018)Cemented paste backfill for mineral tailings management: Review and 2022年12月15日 Highrisk areas in coal mines have become an increasingly serious issue in recent years However, the chemical foaming agents used in coal mine filling management are mostly hydrogen peroxide which produces combustible O 2 and aluminum or zinc powder which is explosive H 2All of the above chemical foaming agents do not have safe filling conditionsA novel CO2 foaming agent for the preparation of foamed
Pore characteristics of sulfateactivated coal gasification
2023年10月25日 With the mass production of coalbased solid waste, coal mine filling can effectively consume it The coal gasification slag is modified and prepared as coal mine filling material to meet the relevant technical requirements, which can realize the recycling of coal mine → coal chemical industry → coal mine In this paper, in order to explore the evolution law of 2022年10月23日 Table 3 reflects the actual influence rates of raw coal mining, gangue filling, coalgangue separating and material transportation on the carbon emission intensity of the coal mine after the unit energy consumption of the main production links in MSBICM was increased by 01 kg standard coal each, which were 109%, 134%, 109%, and 513% Simulation of carbon emission for mining2024年5月1日 The keywords of this cluster focus on coal mine filling mining, which is one of the important contents of green mine construction and has obvious advantages in coal safety mining, ecological environment protection and solid waste treatment, etc Coal mine filling mining mainly includes gangue filling mining, caving zone grouting filling mining Research hotspots and development trends of green coal mining 2024年1月3日 of coal mine filling material with large amount of fly ash[J] Journal of China Coal Society，2023，48(12)： 4536−4548 第 48 卷第 12 期 煤 炭 学 报 Vol 48 No 12 2023 年 12 月 JOURNAL OF CHINA COAL SOCIETY Dec 2023大掺量粉煤灰基矿井充填材料的制备 工作性能与微观结构的研究
Study on the effect of mixing water on coal mine filling
2021年6月5日 Coal mine paste filling technology can effectively solve the problems caused by coal mining and is a key technology to realize green mining and is widely used in coal mining (Qi et al 2019; Qian et al 2018; Qi 2020)In coal mine paste filling technology, the performance of filling materials directly determines the filling effect of a coal mine; and the cemented paste 2023年11月23日 Based on the greening and low interference disposal requirements of coal gangue in highyield and highefficiency mines in Inner Mongolia and Shaanxi, and by integrating the existing theories and Technology and engineering test of filling goaf with coal2024年3月27日 Underground backfilling stands out as a crucial technological strategy for the ecofriendly and effective management of solid waste in mining operations However, existing backfilling techniques have led to increased production processes at the working face, resulting in a reduction in coal extraction efficiency Addressing the temporal and spatial interference Gangue grouting filling in subsequent space of coal green mining 2023年7月8日 This article proposes a coal minefilling material Internet of Things (IoT) perception network framework to address the shortcomings in perception and intelligence faced by solid backfilling in Research on the data validity of a coal mine solid backfill
Research status of comprehensive utilization of coalbased
2024年5月20日 It is found that coal mine filling mining is a green disposal method with relatively reliable technical means, low supervision cost and largescale disposal of CSW in the comprehensive utilization of CSW in China Furthermore, an analysis was conducted on the current research status of key technologies in the CSW filling and mining process 2023年9月20日 MC was industrially produced and tested in an industrial application in Changxing coal mine and Mahuangliang coal mine in Yulin City The downhole core UCS of the two coal mines were 773 and 1262 MPa after 28 d, and the leaching indexes met the standard GB/T 14848 (Ⅲ) Both of which reach the requisites for safe underground fillingDevelopment and field application of a modified magnesium 2023年1月29日 For green filling mining in coal mines, scholars throughout the world have performed much work and obtained numerous research results However, the selection of filling materials, construction technology and field application for green filling mining in deep coal mines must still be studied In this paper, comprehensive research methods such as Frontiers Study on green filling mining technology and its 2024年7月8日 Therefore, it is determined that Scheme 2, ie general face long limit thickness single long wall backward integrated mining paste filling coal mining method, is the optimal mining plan for this Preferential evaluation of coal filling mining scheme under
Study on Ratio of Filling Material in Openpit Coal Mine
2024年7月31日 Filling mining has been widely utilized in metal mines and underground coal mines While the endwall mining of openpit coal mines requires a comprehensive study of filling materials in conjunction with filling mining techniques In this regard, the use of stripping waste rock as an ideal filling aggregate is crucialIn the process of coal resource exploitation, processing and utilization, there are a large number of coalbased solid wastes, such as coal gangue, fly ash, coal gasification slag, which pollute the environment, occupy land resources and are difficult to be disposed Applying coalbased solid waste in the preparation of mine filling materials to solve the problems of stratum collapse and Study on preparation, working performance and microstructure of coal