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Optimization of the Separation of Unburned Coal from a Selected Fly Ash
Krzysztof Wierzchowski
Central Mining Institute
Corresponding Author
ORCiD: https://orcid.org/0000-0003-3642-0018
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This work is licensed under a CC BY 4.0 License. Read Full License
Unburned coal grains often hinder the economic utilization of fly ash and also represent energy loss of the fuel. This paper addresses the possibility of separating unburned coal from a selected fly ash with typical mineralogical and chemical characteristics. To assess the possibility of separating the unburned coal, the analysis of the grain density and composition of ash was used. The unburned coal was separated using one wet gravity and three dry methods. The highest amount of unburned coal, 62% in the concentrate, was obtained using the fluidized bed method with separation. The largest weight yield of concentrate equal to 17.8% was obtained using the electrostatic method.
Keywords
power plant, fly ash, unburned coal, separation
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This is a preprint. It has not completed peer review.
Research
Optimization of the Separation of Unburned Coal from a Selected Fly Ash
Krzysztof Wierzchowski
Central Mining Institute
Corresponding Author
ORCiD: https://orcid.org/0000-0003-3642-0018
Badges
Prescreen
This manuscript passed our Prescreen assessment
Complete author information
Appropriate declaration statements
Potential risks to human health
Prescreen
History
CURRENT STATUS: Posted
Version 1
Posted 18 Sep, 2020
No community comments so far
Metrics
Comments: 0
PDF Downloads: ...
HTML Views: ...
Subject Areas
Biotechnology and Bioengineering
License:
This work is licensed under a CC BY 4.0 License. Read Full License
Unburned coal grains often hinder the economic utilization of fly ash and also represent energy loss of the fuel. This paper addresses the possibility of separating unburned coal from a selected fly ash with typical mineralogical and chemical characteristics. To assess the possibility of separating the unburned coal, the analysis of the grain density and composition of ash was used. The unburned coal was separated using one wet gravity and three dry methods. The highest amount of unburned coal, 62% in the concentrate, was obtained using the fluidized bed method with separation. The largest weight yield of concentrate equal to 17.8% was obtained using the electrostatic method.
Figure 1
Figure 2