Sub-bituminous coal handling problems solved with bunker liner retrofit
After switching to low-sulfur sub-bituminous coal, Northern States Power Co. (NSP) experience several fires and an explosion in the coal storage bunkers of its two-unit, 384-MW Riverside plant located in Minneapolis, Minn. The most recent incident occurred in November 1993 when a blast rocked Unit 7`s coal storage bunker. The spontaneous combustion explosion was touched off when coal dust from the dust collection system was being conveyed back into the bunker and came into contact with hot coal. Reaction to the incident was swift and NSP management established a task force known as ``Operation Cease Fire`` to investigate the situation and develop a solution to eliminate fires and explosions at all of its coal-fired plants. This article describes the problems found in the coal handling systems and the steps taken to correct them.
- OSTI ID:
- 113286
- Journal Information:
- Power Engineering (Barrington), Vol. 99, Issue 9; Other Information: PBD: Sep 1995
- Country of Publication:
- United States
- Language:
- English
Similar Records
Wet scrubbing of fly ash and SO/sub 2/
Pneumatic dense-phase shipboard coal and ash conveying storage and bunkering systems for coal-fired ships (technical application manual). Final report Mar 81-May 82