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2016 | OriginalPaper | Chapter

Effect of Microwave Irradiation on Improving Coal Grindability

Authors : He Zhi-jun, Pang Qing-hai, Zhang Jun-hong, Zhan Wen-long, Ning Zhe

Published in: Energy Technology 2016

Publisher: Springer International Publishing

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The effect of microwave irradiation on grinding property of coal was studied by using Hardgrove grindability index tester. Superior grindability of coal was obtained to varying extent after microwave irradiation treatment. The variation in microstructure of pulverized coal during microwave irradiation was observed by utilizing scanning electronic microscope (SEM). The results indicated that the different microwave absorbance of minerals and carbon matrix led to cracks on their interface, by which coal particles were further pulverized and therefore the granularity of coal powder was reduced. Due to the different formation process of various coals, bituminite and anthracite are very different in physical and chemical properties. According to the content of coal pulverization, it can found that microwave irradiation has a stronger pulverizing effect on bituminite in comparison to anthracite.

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Metadata
Title
Effect of Microwave Irradiation on Improving Coal Grindability
Authors
He Zhi-jun
Pang Qing-hai
Zhang Jun-hong
Zhan Wen-long
Ning Zhe
Copyright Year
2016
Publisher
Springer International Publishing
DOI
https://doi.org/10.1007/978-3-319-48182-1_17

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