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Grinding Amp Amp Burning Low Hgi Coal

Grinding Amp Amp Burning Low Hgi Coal

The commonly used method to evaluate the grindability of coal in medium speed pulverizers is the Hardgrove Grindability Index HGI 5. The HGI test is based on Rittingers theory. It allows to predict the mill output performance and energy requirements and qualitatively also the particle size distribution after milling 6. As the value.

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