Experimental study on the macerals enrichment of low-rank coal by rotary triboelectric separator
Abstract The enrichment of vitrinite can enhance the oil yield and conversion rate in low-rank coal liquefaction. The work evaluated the effects of surface modification on the rotary triboelectric separation of macerals. Permittivity and charge–mass ratio analysis of vitrinite and inertinite under various modified conditions demonstrated that kerosene and diesel …
The separation characteristics of Shenhua low-rank coal maceral were examined by manual enrichment, screening enrichment and centrifugal heavy-liquid separation. After manual enrichment, vitrinite ...
The electrostatic separator of different designs is also discussed in the literature. Chen [5], in his thesis, discussed the use of novel rotary triboelectric separator for upgrading the coal quality. In one of the design, the particles were charged in cyclone separator by frictional action and then fed into the active electric field region [16].
Efficiently harvesting energy from ambient motion is important for realising cost-effective and clean electrical energy. Here, the authors report a planar-structured rotary triboelectric generator ...
ABSTRACT Dry triboelectric separation of coal depends on tribocharge difference of the coal and gangue minerals. A suitable tribocharger material which makes the coal and minerals tribocharged of opposite polarity is of great importance for triboelectric separation. In this paper, the composition of coal was analyzed by x-ray …
ABSTRACT Dry triboelectric separation of coal depends on tribocharge difference of the coal and gangue minerals. A suitable tribocharger material which makes the coal and minerals tribocharged of…
Cleaning and upgrading of low-rank coal using a novel rotary triboelectric separator with the polyvinyl chloride as friction medium
As the main solid wastes of coal-fired power plants, fly ash particles with different electrical properties are usually recycled using triboelectrostatic separator. The purpose of this study was to investigate the effect of different plate voltages on the separation of fly ash in a rotary triboelectrostatic separator with experiments and …
This study was performed to investigate the feasibility of applying a Rotary Triboelectrostatic Separator (RTS) to the beneficiation of Eshidiya phosphate minerals.
Abstract The improvement of vitrinite content in low-rank coal can enhance liquefaction efficiency. In this work, an innovative rotary triboelectric separator (RTS) was used to enrich the macerals of…
Cleaning and upgrading of low-rank coal using a novel rotary triboelectric separator with the polyvinyl chloride as friction medium
Semantic Scholar extracted view of "Effects of key factors of rotary triboelectrostatic separator on efficiency of fly ash decarbonization" by Y. Tao et al.
tribostatic separator canada - galaxyanimation.it. Rotary Triboelectric Separator For Sale being required to dry the coal product before being sold as a source of fuel South African coals on a rotary triboelectric ...
ABSTRACT This paper studies particle motion and flow field characteristics with fly ash as an example and combine the experiments to analyze the separation process of rotary triboelectric separator in detail. Under boundary reference conditions of 22 kV plate voltage, 3 m/s feed flow, and 1815 r/min (189.95 rad/s) friction wheel speed, it simulated …
Cleaning and upgrading of low-rank coal using a novel rotary triboelectric separator with the polyvinyl chloride as friction medium
A batch-mode triboelectric separator is being used in CSIR-Institute of Minerals & Materials Technology for separating pure coal particles from gangue quartz and kaolinite particles.
Wang et al. [79] researched the dynamics of tribocharged organic coal, pyrite, and calcite particles in the free-fall triboelectric separator by applying the high-speed dynamic camera.
The rotary triboelectrostatic separator was used to conduct macroscopic charging tests under different operating conditions. The Kelvin probe force microscope (KPFM) of atomic force microscope (AFM) was employed to investigate the microscopic charge transfer during the single particle tribocharging process induced by collision or …
Semantic Scholar extracted view of "Cleaning and upgrading of coal-series kaolin fines via decarbonization using triboelectric separation" by He Jingfeng et al.
Comparison with other maceral separation technologies, the rotary triboelectrification technology is a clean dry and economical process technology, it has inherent advantages in the separation of macerals for low rank coal.
The purpose of this study was to investigate the effect of different plate voltages on the separation of fly ash in a rotary triboelectrostatic separator with experiments and numerical simulation.
The rotary triboelectric separator has been widely recognized for its high charging performance and separation efficiency [17, [23], [24], [25], [26]]. In our previous study, ash removal and quality enhancement of low-rank coal is accomplished by effectively removing hazardous trace elements (i.e., Cd, Cr, Pb, and Sb) utilizing a rotary ...
ABSTRACT A study of fine coal beneficiation in a laboratory triboelectric separation system was carried out to provide a fundamental understanding of improving the separation efficiency of thermal coal powder by chemical conditioning. Separation results of untreated and chemically treated fine coal were investigated. The experimental results …
In our previous study, ash removal and quality enhancement of low-rank coal is accomplished by effectively removing hazardous trace elements (i.e., Cd, Cr, Pb, and Sb) utilizing a rotary triboelectric separator [ 27 ].
ABSTRACT This paper studied the macerals enrichment of the low-rank coal which produced by Shigetai Coal Mine, Shenhua Group. The coal sample fed to the Falcon were the product of the rod mill after 10 minutes grinding. Three factors were carried out, rotational frequency, feed rate and water pressure. The orthogonal experiment was …
Abstract. In this study, the rotary triboelectrification separation technology is applied to the separation of macerals for low rank coal, which has not been studied by previous researchers. The ...
Rotary triboelectrostatic separator is employed to remove and recycle unburned carbon from fly ash which are main solid wastes of coal-fired power plants. The products after decarburization can be used for building materials, road construction material and other function materials. In previous works, effects of structural parameters and …
ABSTRACT This paper studies particle motion and flow field characteristics with fly ash as an example and combine the experiments to analyze the separation process of rotary triboelectric separator…
This paper studies particle motion and flow field characteristics with fly ash as an example and combine the experiments to analyze the separation process of rotary triboelectric separator in detail.
Request PDF | Dry coal fly ash cleaning using rotary triboelectrostatic separator | More than 80 million metric tons of fly ash is produced annually in the U.S. as coal combustion by-product. Coal ...
Abstract and Figures. A study of fine coal beneficiation in a laboratory triboelectric separation system was carried out to provide fundamental understanding of improving separation efficiency of ...
In this study, the coal–silica mixture was beneficiated using a novel rotary triboelectrostatic separator (RTS). This new type of electrostatic separator is characterized with high particle charging efficiency, good separation environment and high throughput.
Rotary triboelectrostatic separator is employed to remove and recycle unburned carbon from fly ash which are main solid wastes of coal-fired power plants. The products after decarburization can be used for building materials, road construction material and other function materials.
This paper studies particle motion and flow field characteristics with fly ash as an example and combine the experiments to analyze the separation process of rotary triboelectric separator in detail.
Chen and Honaker [23] used a rotary triboelectric separator for dry separation of coal-silica mixtures and achieved the recovery of coal from silica. These studies confirm that triboelectric separation has outstanding advantages in the field of coal and mineral resource recovery.
Among the separation techniques used in industry, the triboelectric separation of insulating particles using rotary tube is an efficient technology employed in waste recovery and mineral ...
The triboelectric separator is an innovative technology that has transformed the separation process in various industries. This article will delve into the fundamentals of triboelectric separation, its applications, advantages, and limitations. We will also explore how this technology is revolutionizing the separation process and its …
