استشر الولايات المتحدة
بصفتنا مصنعًا عالميًا رائدًا لمعدات التكسير والطحن ، فإننا نقدم حلولًا متطورة وعقلانية لأي متطلبات لتقليل الحجم ، بما في ذلك إنتاج المحاجر والركام والطحن ومحطة تكسير الحجارة الكاملة. نقوم أيضًا بتوريد الكسارات والمطاحن الفردية وكذلك قطع غيارها.
Effect of ionic liquids on the microstructure and combustion
2023年8月7日· To ensure the safe transportation and efficient utilisation of lignite, it is important to inhibit its spontaneous combustion In this study, Shengli lignite (SL +) was used as the research object and ionic liquids (ILs) were used to pretreat the lignite to2020年10月1日· Lignite spontaneous combustion (LSC) potentially harms not only humans but also industries and the environment For example, LSC causes theExperimental investigation on using ionic liquid to control
Synergistic mechanism of CO2 ScienceDirect
2020年10月15日· The spontaneous combustion of lignite is a significant challenge in coal mining, transportation, and storage, resulting in wasted resources,To ensure the safe transportation and efficient utilisation of lignite, it is important to inhibit its spontaneous combustion In this study, Shengli lignite (SL + ) was used as theEffect of ionic liquids on the microstructure and combustion
Physicochemical properties, combustion kinetics and
2023年4月1日· Moreover, lignite can be easily oxidized in air during storage and transportation [6], leading to spontaneous combustion [7,8] The spontaneous2021年6月5日· Compositional evolution of lignite during spontaneous combustion under lowtemperature oxidation Lin Xin , Min Xu , Mingze Feng , Kaixuan Li , ZhigangCompositional evolution of lignite during spontaneous
An Autopsy of Spontaneous Combustion of Lignite Taylor
2015年6月25日· ABSTRACT The increasing demand of lignite in the power sector has led to a renewed interest to study the possibilities of spontaneous combustionThe characteristic parameters of the spontaneous combustion of lignite were analyzed by simultaneous thermal analysisFourier transform infrared spectroscopy and in situThermogravimetric and infrared spectroscopic studies of the
Effects of alkalioxygen oxidation temperature on the structures
In this work, the alkalioxygen oxidation (AOO) of Chinese Shengli lignite was conducted to inhibit the spontaneous combustion tendency, and the in uences of AOO on the2018年3月7日· The spontaneous combustion propensity of lignite is altered after HTD as the related physicochemical properties are remarkably changed Thus, it might beChanges in the physicochemical characteristics and
Study of the Effect of Drying on the Pore Structure and Rate
tion, storage, and transportation of lignite will be strengthened, and the problem of lignite spontaneous combustion will be highlighted [1, 2] The physical and chemical structure of coal is easily changed by water immersion and air drying, and through these changes, the characteristics and process of spontaneous combustion of coal are2020年10月1日· Lignite spontaneous combustion 1 Introduction Lignite presents a readily combustible high energy material, and it also tends to result in Lignite was obtained from the Da Nanhu mine in Hami (Xinjiang Uygur Autonomous Region, China) and was sealed for transportation Soon after its arrival at the laboratory, the sample surfaceExperimental investigation on using ionic liquid to control spontaneous
Effect of ionic liquids on the microstructure and combustion
2023年8月7日· To ensure the safe transportation and efficient utilisation of lignite, it is important to inhibit its spontaneous combustion In this study, Shengli lignite (SL +) was used as the research object and ionic liquids (ILs) were used to pretreat the lignite to investigate their effect on the combustion performance of ligniteOn this basis, the2018年3月7日· However, as shown in Figure 8, the propensity for spontaneous combustion of Ximeng lignite was elevated after being upgraded at 200 and 230 °C It suggests that the spontaneous combustion propensity of HTD200 and HTD230 was mainly controlled by other factors instead of chemical properties, for example changes inChanges in the physicochemical characteristics and spontaneous
An Autopsy of Spontaneous Combustion of Lignite | Request PDF
2015年6月25日· The increasing demand of lignite in the power sector has led to a renewed interest to study the possibilities of spontaneous combustion behavior Bulk storage of lignite with unknown histories of2022年4月27日· Introduction The spontaneous combustion of coal is a major disaster in the mining, storage, and transportation chain of coal production, restricting the development of the coal industry [1,2]The spontaneous combustion of coal not only causes significant wastage of coal resources [3,4], but also leads to mine fires that varyDivision of coal spontaneous combustion stages and selection of
Experimental Study on Catalytic Action of Intrinsic Metals in Coal
2023年4月7日· In order to study the effect of inherent metals in coal on spontaneous combustion, Hongmiao lignite and Hongqingliang longflame coal were demineralized by hydrochloric acid, the raw coal and demineralized coal were characterized by Fourier transform infrared spectrometry, Xray diffraction, and synchronous thermal analysis2019年1月22日· This study focuses on the mechanism of gas (such as CO and CO2) generation during lowtemperature oxidation of coal to provide a better understanding of the progressive phases of coal spontaneous combustion Considering the formation of coal bodies, the internal structures of different coal bodies vary; therefore, it is difficult toMechanism of Gas Generation during LowTemperature Oxidation
Effect of 1Butyl3MethylImidazolium bis (trifluoromethylsulfonyl
2023年1月3日· Coal spontaneous combustion (CSC) has been endangering the safety of the coal industry Spontaneous combustion of coal may lead to coal seam combustion and gas explosions in coal mines, causing a lot of damage At the same time, CSC will produce a large amount of carbon dioxide, which seriously endangers the ecological2023年1月23日· Lignite in eastern Inner Mongolia accounts for 7755% of the total lignite resources in China and 450% of the reserved coal reserves in Inner Mongolia The mining, processing, utilization, storage, and transportation of lignite will be strengthened, and the problem of lignite spontaneous combustion will be highlighted [1, 2]Study of the Effect of Drying on the Pore Structure and Rate
An Autopsy of Spontaneous Combustion of Lignite Taylor
2015年6月25日· ABSTRACT The increasing demand of lignite in the power sector has led to a renewed interest to study the possibilities of spontaneous combustion behavior Bulk storage of lignite with unknown histories of their proneness to selfignition phenomena has become a concern in their selection The present evaluation has been directed to delve2021年2月1日· The high water content of lignite has raised serious environmental and efficient issues, which are obstacles to its large scale utilization In this study, hydrothermal dewatering (HTD) method was used to upgrade a lignite from Inner Mongolia in China at 230–330 °C The combustion behaviors of raw lignite and HTD samples wereStudy on combustion performance of hydrothermally dewatered lignite
Effect of ionic liquids on the microstructure and combustion
To ensure the safe transportation and efficient utilisation of lignite, it is important to inhibit its spontaneous combustion In this study, Shengli lignite (SL+) was used as the research object and ionic liquids (ILs) were used to pretreat the lignite to investigate their effect on the combustion performance of lignite On thisAccording to eq 24, when the air flow rate q was 129 mL/s (774 mL/min), the adiabatic spontaneous combustion period of the lignite used in this experiment was 65 d To achieve safe and green mining, storage, transportation, processing, and utilization of lignite, the moisture content of old lignite should be controlled to be above 1315% Contrastive Experimental Study on the Adiabatic Spontaneous
Lignite ammonia adsorption and surface chemistry after
2020年12月15日· After treatment at 200 °C, the water content of the lignite decreased from 616% to 42%, and its adsorption of NH 3 and NH 4+ increased by 288% and 658%, respectively The increase of activation energy of combustion from 348 to 378 kJ mol −1 indicates lower risk of spontaneous combustion after treatmentreasons leading to spontaneous combustion Low temperature oxidation is the major source of the heat leading to spontaneous combustion of lignite In order to inhibit the low temperature oxidation and reduce the spontaneous combustion tendency, various work have been reported16–18 Alkali treatment is one of the effective means toEffects of alkalioxygen oxidation temperature on the structures
Physicochemical properties, combustion kinetics and
2023年4月1日· Moreover, lignite can be easily oxidized in air during storage and transportation [6], leading to spontaneous combustion [7,8] The spontaneous combustion of lignite presents industrial safety and environmental concerns [9] For example, spontaneous combustion of lignite can cause land desertification, release2022年12月14日· The drying process of immersed lignite has a significant influence on the characteristics and progress of spontaneous combustion To reveal the influence mechanism of the drying process ofStudy the effect of drying on the oxidation thermogravimetric and
Comparative study of the kinetic characteristics of coal spontaneous
2023年3月4日· Coal spontaneous combustion often occurs in coal seam mining, which may lead to mine fires and other disasters It is essential to investigate the detailed differences in combustion processes, characteristic temperatures, characteristic parameters of mass loss, combustion characteristic indices, and reaction kinetic2022年3月31日· Wang et al proved that the spontaneous combustion tendency of lignite increases with a decrease in the particle size The essence of coal spontaneous combustion is that some active structures on the coal surface contact oxygen in the air, resulting in coaloxygen complex reactions [24–29] Coal contains many functional groupsExperimental Study on Crushing Characteristics of Lignite under