Hammer Milling and Jet Milling Fundamentals | AIChE
A hammer mill is typically good for grinding softer materials with Mohs hardness ranging from 1 to 5, while a jet mill can grind materials with Mohs hardness as high as 10. ... a second explosion can occur from the dust that has been allowed to accumulate in the plant room. Although the first explosion may be minor, it disturbs the dust on ...