Difference between coal handling and ash handling
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04/01/2003

By: Brian K. Schimmoller, Managing Editor
Coal and ash handling presents many problems, but cost-saving and revenue generation opportunties are available to aggressive asset owners.
A necessary evil. That is the term often applied to coal and ash handling at power plants. Such functions are typically not held in high regard because they incur costs without contributing substantially to power production. As a result, management understanding is limited in many cases, and time and attention are focused only when the wheel squeaks loudly enough. Efficiency improvements are available, however, if one is willing to look hard enough, as are revenue opportunities, primarily on the back end in terms of fly ash separation and marketing.
Coal handling is often a complex undertaking, particularly for larger power stations. The delivery route, from the mine to railcar to unloading facility to storage to reclaim to pulverizer, is subject to numerous inefficiencies. The significant increase in use of Powder River Basin coal – from next to nothing in 1970 to about 375 million tons in 2002 to a potential 500-550 million tons by 2010 – has introduced further complexities associated with dust generation, freezing tendency, spontaneous combustion, and the increased volume that must be handled at plants that have switched from eastern coals.
To an extent, however, these complications may be overblown. "Much of what we encounter when we perform handling system audits shows us that little, if any, capital is required to provide meaningful improvements, and these improvements can often occur without increase in operating costs," said Don Samples, Vice President and Senior Consultant with St. Louis-based Marston & Marston Inc.
hope it's help u!
:)

By: Brian K. Schimmoller, Managing Editor
Coal and ash handling presents many problems, but cost-saving and revenue generation opportunties are available to aggressive asset owners.
A necessary evil. That is the term often applied to coal and ash handling at power plants. Such functions are typically not held in high regard because they incur costs without contributing substantially to power production. As a result, management understanding is limited in many cases, and time and attention are focused only when the wheel squeaks loudly enough. Efficiency improvements are available, however, if one is willing to look hard enough, as are revenue opportunities, primarily on the back end in terms of fly ash separation and marketing.
Coal handling is often a complex undertaking, particularly for larger power stations. The delivery route, from the mine to railcar to unloading facility to storage to reclaim to pulverizer, is subject to numerous inefficiencies. The significant increase in use of Powder River Basin coal – from next to nothing in 1970 to about 375 million tons in 2002 to a potential 500-550 million tons by 2010 – has introduced further complexities associated with dust generation, freezing tendency, spontaneous combustion, and the increased volume that must be handled at plants that have switched from eastern coals.
To an extent, however, these complications may be overblown. "Much of what we encounter when we perform handling system audits shows us that little, if any, capital is required to provide meaningful improvements, and these improvements can often occur without increase in operating costs," said Don Samples, Vice President and Senior Consultant with St. Louis-based Marston & Marston Inc.
hope it's help u!
:)
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