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 gangue lightweight aggregate pulverizing process
Utilization of coal gangue as coarse aggregates in structural
2021年1月25日 In this paper, coal gangue is utilized as a replacement of coarse aggregate in structural concrete The effects of coal gangue on the mechanical properties of concrete 2024年8月23日 This study encapsulated coal gangue aggregates (CGAs) with a fly ashcement slurry, varying the content of fly ash (0 %, 10 %, 20 %, and 30 %) and maintaining a waterto Enhancing coal gangue aggregates with fly ashcement slurry 2020年5月15日 It is a promising and effective method for waste treatment by using coal gangue to make lightweight aggregate concrete However, lightweight aggregate concrete with low Shrinkage and Strength Properties of Coal Gangue Ceramsite 2023年12月26日 The results show that the strength of CG can be significantly improved by using a mixture of 6wt% water glass and 07wt% soil curing agent as modifiers; then, the Research on the Modification Process of Coal Gangue Aggregate
Influence of Coal Gangue Powder on the Macroscopic
2023年10月3日 Integrating recycled aggregates (RAs) and coal gangue powder (CGP) into concrete is an effective approach for waste management However, CGP can affect the performance of traditional recycled concrete This study 2024年9月7日 Given the coal gangue properties and global land degradation severity, the resourceful utilization of coal gangue as soil conditioners is believed to be a universally Opportunities, challenges and modification methods of coal 2024年7月12日 During the concrete mixing and forming process, CG fine aggregate plays a crucial role in hydration reaction and microstructure improvement rather than just as an inert Review Highcapacity utilization of coal gangue as supplementary 2021年11月11日 Among the techniques for converting stacked coal gangue to reusable material, one of the most effective ways is to use coal gangue as a coarse aggregate in green concrete productions The physical and chemical Application of Coal Gangue as a Coarse Aggregate in
Experimental study on basic properties of coal gangue aggregate
2010年12月1日 Chen [6], Zhang et al [7], and Wang et al [8] made concrete using coal gangue and tested its basic properties It was found that it is feasible to replace conventional coarse aggregate with coal 2019年12月1日 The accumulation of considerable coal gangue not only occupies a great deal of land resource, but also results in serious environmental problems, eg, soil pollution, air pollution, and geologic hazards (Stracher and Taylor, 2004)The heat continues to accumulate during the accumulation process, which leads to spontaneous combustion with the oxidization of coal Comprehensive utilization and environmental risks of coal gangue: A 2020年9月27日 CoalGangue Ceramsite Lightweight Aggregate Concrete Specimen Preparation Process Since the experiments were performed on CGCLWAC of which the mixing and forming processes were so different from Factors Affecting Brittleness Behavior of CoalGangue 2020年5月6日 Coal gangue, a byproduct produced during the process of coal mining and washing, has a serious impact on the environment Using coal gangue as a concrete aggregate has been proven helpful in Frost Resistance of Coal Gangue Aggregate Concrete Modified by Steel
Process Optimization Experiment of Preparing Light Ceramsite
2019年11月29日 best effect, and its process raw material ratio is coal gangue: Experimental Study on Preparation of Lightweight Aggregate from Coal Gangue, J Nonmetallic Mines 2003 16 (2003) 28302022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 MDPI2021年11月11日 Among the techniques for converting stacked coal gangue to reusable material, one of the most effective ways is to use coal gangue as a coarse aggregate in green concrete productions(PDF) Application of Coal Gangue as a Coarse Aggregate in 2020年2月20日 In the construction field, coal gangue has also been used to make bricks, concrete blocks, mosaics, firedglazed floor tiles, lightweight aggregate and other low valueadded building materials [8], [16], [17] At present, coal gangue can partly or completely replace clay for aluminum adjustment in cement clinker production [18], [19]Reactivity activation of waste coal gangue and its impact on the
Using Chinese Coal Gangue as an Ecological Aggregate and Its
2022年6月26日 Coal gangue is a kind of industrial solid waste with serious ecological and environmental implications Producing concrete with coal gangue aggregate is one of the green sustainable development 2020年6月4日 Coal gangue aggregate was employed as highgrade railway subgrade filler andprepared concrete for roadbed drainage (named coal gangue roadbed protecting concrete—CGRPC)(PDF) Utilization of Coal Gangue Aggregate for Railway Roadbed 2024年4月15日 Coal gangue is a byproduct of coal mining and processing, and according to incomplete statistics, China has amassed a substantial coal gangue stockpile exceeding 2600 large mountains, which poses a serious threat to the Enhancing Fatigue Performance of Coal Gangue 2022年6月26日 Coal gangue is a kind of industrial solid waste with serious ecological and environmental implications Producing concrete with coal gangue aggregate is one of the green sustainable development requirements This Using Chinese Coal Gangue as an Ecological
Research on lightweight Yolo coal gangue detection
PDF On Mar 1, 2023, Guanghui Xue and others published Research on lightweight Yolo coal gangue detection algorithm based on resnet18 backbone feature network Find, read and cite all the Appl Sci 2020, 10, 3229 2 of 19 and fine aggregate of concrete mixtures, the environmental impact caused by both coal gangue and overexploitation of sand and gravel can be reducedFrost Resistance of Coal Gangue Aggregate Concrete Modified by Steel 2022年12月26日 Top coal caving is a process for the rational extraction of large amounts of coal resources However, this process readily causes release of excessive amounts of gangue during the coal release process The conventional technique, which involves visual inspection, is not only laborintensive but also can introduce inaccuracies Coal and gangue identification methods A review of coal gangue identification research—application to 3 Coal gangue roadbed protecting concrete (CGRPC) with coal gangue aggregate can e ectively protect the roadbed from attack 4 The technical and economic benefits for coal gangue applied in railway roadbed construction are analyzed 1 Introduction Coal gangue is normally seen as an industrial solid waste, and it is widely distributed in coalUtilization of Coal Gangue Aggregate for Railway Roadbed
Valorization of calcined coal gangue as coarse aggregate in
2021年8月1日 The particle sizes of both raw coal gangue aggregate (CGA raw) and NA were in range of 475–950 mm Type PII 525 Portland cement was provided by Onoda Co Ltd, Nanjing Table 1 reveals that the main chemical an innovative slurry wrapping process based on WSAC was employed for the modification of raw CGAs (RCGA) and 2020年12月1日 Therefore, the risk of heavy metal pollution of reclaimed cultivated land by coal gangue filling cannot be ignored The properties of RMSs differ significantly from those of nonsubsided A longterm study on the soil reconstruction process of reclaimed land 2020年5月15日 1 Introduction Coal gangue is a kind of solid waste generated by the coal mining and washing Longterm storage not only takes up space but also causes serious pollution and destruction of the surrounding environment [1 – 3]The treatment and utilization of coal gangue has attracted the interest of many researchers [] since the 1970s Coal gangue has Shrinkage and Strength Properties of Coal Gangue Ceramsite Lightweight 2015年1月10日 This paper investigates the feasibility of using coal gangue as coarse and fine aggregates in concrete as well as how the coal gangue aggregate grading affects concrete properties Nine mixed concrete samples were prepared with the value n in Fuller’s curve ranged from 044 to 068 The coal gangue aggregate with n = 062 shows the highest density, water Influence of coal gangue aggregate grading on strength
Lightweight ceramsite made of recycled waste coal gangue
2022年11月20日 A longterm study on the soil reconstruction process of reclaimed land by coal gangue filling Catena, 195 (2020), Article Google Scholar Liang et al, 2021 Shrinkage and strength properties of coal gangue ceramsite lightweight Aggregate concrete Adv Mater Sci Eng, 7 (2020), Article View in Scopus Google Among the techniques for converting stacked coal gangue to reusable material, one of the most effective ways is to use coal gangue as a coarse aggregate in green concrete productionsPhysical properties of coal gangue aggregate from different 2020年5月15日 1 Introduction Coal gangue is a kind of solid waste generated by the coal mining and washing Longterm storage not only takes up space but also causes serious pollution and destruction of the surrounding environment [1 – 3]The treatment and utilization of coal gangue has attracted the interest of many researchers [] since the 1970s Coal gangue has Shrinkage and Strength Properties of Coal Gangue Ceramsite Lightweight WANG Y S, QIU J P, DENG W, et al Factors affecting brittleness behavior of coalgangue ceramsite lightweight aggregate concrete[J] Frontiers in Materials, 2020, 7: doi: 103389/fmats2020 Schematic of the hydration process of ACGP Figure Formation mechanism of geopolymerizationResearch progress of highvalue utilization of coal gangue
A longterm study on the soil reconstruction process of reclaimed
2020年12月1日 Land reclamation is usually carried out by landfill approaches such as filling the subsidence area with coal gangue, ash (Kumar and Singh, 2003), or river or lake sedimentsAmong these materials, coal gangue is the most widely used filling material, which has many advantages: (a) coal gangue is a solid waste from mining, representing approximately coal gangue aggregate concrete is about 39% higher than that ofnatural coal gangue concrete[15] Whenthe gangue aggregate Fuller gradation curve index (n) is 062, the porosity of concreteisthelowest andthedensity isthehighestThecompressive strength of 28d coal gangue aggregate concrete can reach 37MPa, which meets the strength requirements Study on Mechanical Properties of PET Fiber‐Reinforced Coal Gangue 2024年8月23日 Due to the abundance of microcracks, voids, and a higher carbon content, coal gangue displays increased water absorption and crushing value, while also having a lower apparent density compared to natural aggregates [15], [16]These shortcomings lead to reduced durability and mechanical properties when coal gangue is employed as a concrete aggregate, Enhancing coal gangue aggregates with fly ashcement slurry 2020年6月4日 As a massive solid waste, the high valueadded utilization of coal gangue has received more and more attention in China This study focuses on the utilization of coal gangue aggregate in railway engineering for coal transportation passage Coal gangue aggregate was employed as highgrade railway subgrade filler andprepared concrete for roadbed drainage Utilization of Coal Gangue Aggregate for Railway Roadbed
Study on Mechanical Properties of PET FiberReinforced Coal Gangue
2021年1月5日 In the second part, by studying the effect of different PET fiber content on the mechanical properties of coal gangue fine aggregate concrete with a replacement rate of 50%, it was found that when Research on lightweight Yolo coal gangue detection algorithm based on resnet18 backbone feature network Guanghui Xue a, b, * , Sanxi Li c , Peng Hou a , Song Gao a , Renjie Tan dInternet of Things ResearchGate2016年5月5日 In order to study the key durability index of spontaneous combustion coal gangue lightweight aggregate concrete, with consideration to different sensitivity factors such as the compressive Study on carbonation depth of spontaneous combustion coal gangue 2024年8月23日 The coal gangue aggregate modified by microbial mineralization was subjected to an ultrasonic pulse test; The total porosity decreased from 920 % to 778 % CaCO 3 generated by the MICP process fills the original pore space, especially the large pore space, The influence of lightweight aggregate, Enhancement mechanism of microbial mineralization modified coal gangue
Damage and Deterioration Mechanism of Coal Gangue Mixed
2023年11月15日 22 Mix Proportion According to JGJ512019 “Technical Specification for Light Aggregate Concrete,” the water–cement ratio of coal gangue mixed aggregate concrete is a fixed value of 043, and coarse aggregate of coal gangue replaces coarse aggregate of pumice with equal volume, with substitution rates of 0%, 20%, 40%, 60%, 80%, and 100%loss of aggregate strength, this study saturated the coal gangue with water for 24 h to investigate its resistance It was found that about 354% strength reduction would be produced by the transitionUtilization of Coal Gangue Aggregate for Railway Roadbed 2023年12月8日 During the extraction and processing of coal, a large amount of solid waste, collectively known as gangue, is produced This gangue has a low carbon content but a high ash content, accounting for approximately 15 to 20% of the total coal yield Before coal is used, coal and gangue must be effectively separated to reduce the gangue content in the raw coal and Coal and Gangue Classification Based on LaserInduced 2021年2月20日 Brickmaking using CG is another important way of coal waste recycling utilization using a process of crushing, screening, aging, molding, pressing, and firing However, the toxic elements contained in CG can evaporate as a gaseous phase due to the complex reaction under high temperature, threatening the environment, and human health ( Zhou et al, Ecofriendly treatment of coal gangue for its utilization as
Lightweight Aggregate an overview ScienceDirect Topics
Concrete Aggregates Ian Sims, James Ferrari, in Lea's Chemistry of Cement and Concrete (Fifth Edition), 2019 15712 Lightweight Aggregates EN 13055 292 defines lightweight aggregates as aggregate of mineral origin having a particle density not exceeding 2000 kg/m 3 or a loose bulk density not exceeding 1200 kg/m 3There is no particular change in material 2016年2月1日 Selfignition coal gangue (SCG) used as one of precursors to fabricate autoclaved aerated concrete (AAC) Aiming at studying water absorptivity and frost resistance performance of SCGbased AAC Fabrication and characterization of selfignition coal gangue 2024年10月29日 Coal gangue identification is the primary step in coal flow initial screening, which mainly faces problems such as low identification efficiency, complex algorithms, and high hardware requirements In response to the above, this article proposes a new “hardware friendly” coal gangue image recognition algorithm, RRBMYOLO, which is combined with dark light RRBMYOLO: Research on Efficient and Lightweight 2024年6月1日 One such waste is coal gangue, which is formed in the coal mining process [2] Up to 8 billion tons of coal are mined annually worldwide, 15–20% of which is produced via coal gangue [3] According to China's annual output of 35–4 billion tons of raw coal, the country produces at least 500–800 million tons of coal gangue every year [4]Preparation of highstrength ceramsite from coal gangue and