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On the basis of the performed tests of grindability of coal from Karvina part of the Ostrava-Karvina coal basin we can state that in terms of grindability they are coals suitable for power-production use in furnaces combusting dust fuel. 1991 BOND. The Hardgrove method appears to be the best from many methods of specification of the coal grindability.0 27.

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However, other factors such as coal hardness (i.e. the lower the Hardgrove Grindability Index, or the harder the coal, the higher the power consumption) and mill throughput (i.e., the higher the throughput, the higher the power consumption) had to be included before the impact of grind size could be isolated. It was also observed that combining amperage and flow rate into a single parameter, i ...

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Pulverizer Capacity is not simply "tons throughput per hour!"

However, keep in mind that power consumption varies with mill types but are also largely influenced by coal feed rate, HGI variations, spring pressures, coal fineness,

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