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http://dx.doi.org/10.5855/ENERGY.2019.28.1.001

Evaluation and application of grinding index of domestic desulfurization limestone  

Seo, Jun Hyung (Korea Institute of Limestone and Advanced Materials)
Baek, Chul Seoung (Korea Institute of Limestone and Advanced Materials)
Cho, Jin Sang (Korea Institute of Limestone and Advanced Materials)
Ahn, Young Jun (Daesung MDI)
Ahn, Ji Whan (Korea Institute of Geoscience and mineral resources)
Cho, Kye Hong (Korea Institute of Limestone and Advanced Materials)
Publication Information
Journal of Energy Engineering / v.28, no.1, 2019 , pp. 1-9 More about this Journal
Abstract
In the flue gas desulfurization process of the coal-fired power plant, the grinding efficiencies of the limestone as the sorbent for desulfurization were compared after BWI and HGI measurements. As a result, the grinding index of the domestic desulfurization limestone were linear inversely proportional relationship with decreasing BWI was observed with increasing HGI. There was a difference in grinding efficiency depending on the chemical composition and crystal structure. Therefore, it is considered that when grinding ability of limestone is measured, the grinding property of the sample can be confirmed even by using HGI which can be measured more easily than BWI which is difficult to measure and takes a long time. The desulfurization efficiency can be improved by selective utilization of limestone depending on the crushing characteristics.
Keywords
Bond's Work Index; Hardgrove Grindability Index; Ball Mill; Limestone; Desulfurization;
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