Ball tube mills are either pressurized or suction type. In the pressurized type, the hot primary air is used for drying the coal and to transport the milled coal to the furnace. In this type, leakage in the mill area is high.In the suction type, the exhauster is used for lifting the milled coal from the pulverizer to the furnace through a cyclone.
(EPRI) has determined that 1% of plant availability is lost on average due to pulverizer-related problems.1 EPRI also identified oil contamination and excessive leakage as two areas where pulverizer drive train failures account for 53% of pulverizer problems. Description Pulverization is currently the favored method of preparing coal for burning.
pulverizer types Searc h Home > Engineering > Mechanical Engineering > Energy/ Power Plants 10 Comments Types of Coal Pulverizers in Power Plants Written by: johnzactruba • Edited by: Lamar Stonecypher Published Jan 29, 2010 Pulverizing the coal to a fine powder is an important function in the operation of a power plant.