Laboratory Sample Pulverizers - 911Metallurgist
The 0.125- by 0.046-inch frozen sample required 27.6 kwhr per ton compared to 23.6 kwhr per ton for the unfrozen lignite, and the 0.046- by 0-inch frozen sample required 25.2 kwhr per ton compared to 20.7 kwhr per ton for unfrozen sample. Frozen lignite severely reduced the capabilities of the pulverizer.