Pulverizer fire and explosions
Pulverizer generic type the explosion frequency for vertical spindle pulverizers is about twice that of the ball pulverizers and about five times that of the attrition pulverizers. with bituminous coals the vertical spindle pulverizers show a higher explosion frequency while the ball and attrition pulverizers have equivalent lower frequencies.Pulverizer housing or burner lines are glowing red. mill fires require immediate attention to prevent damage to the pulverizer and more damaging mill puffs. explosions in a pulverized coal system are normally called puffs.. a mill puff is an explosion in the mill system caused by an explosive combination of coal, air and temperature.