Coal-fired power plants can have up to 25 coal pulverizer drives, depending on their size. Any failure in the pulverizers, therefore, can cause big problems. When a large coal-fired plant in the ...

If coal leaving a pulverizer isn’t dry, it may plug up the coal pipes leading to the boiler. The coal-drying process in a pulverizer is similar to that used by flash dryers. Certain coals should be ...

As more and more power plants switch to low sulfur and higher moisture coals, grinding capacities are often reduced, forcing plant owners to implement various equipment upgrade projects or accept a ...

Once pulverized coal flows have been measured, they can be balanced and optimized. Until then, tuning is simply guesswork. The right way to balance furnace fuel flows is to establish solid baseline ...

Scott Sullivan carries out maintenance on one of eight pulverizers in the Boardman coal plant in 2009. The pulverizers transform coal into dust in preparation for burning. (Brent Wojahn/The Oregonian) ...

Stop to reflect on any number of experiences in your life, and coal most likely played a silent but essential role in it. Coal has been the main source of fuel for power plants for as long as we've ...

Gaunt and grimy stokers, silhouetted in furnace glare, are no longer an integral part of a ship’s bowels. Even coal burners can do without them. Last week members of the Fuel Conservation Committee of ...