Types of coal pulverizers. Coal pulverizers may be classified by speed, as follows: Low Speed; Medium Speed; High Speed; Low Speed Ball and tube mills. A ball mill is a pulverizer that consists of a horizontal rotating cylinder, up to three diameters in length, containing a charge of tumbling or cascading steel balls, pebbles, or rods.
Design for Maintainability: The Importance of Operations and Maintenance Considerations During the Design Phase of Construction Projects. Resource Page – . This resource page presents a methodology that links operations and maintenance goals to the design process, and how it can be applied to any organization.