Improved refractory performance through partnership
- Ahlstrom Pyropower Customer Services, Inc., San Diego, CA (United States)
- Resco Products, Inc., Norristown, PA (United States)
From the early designs and construction of Circulating Fluidized Bed (CFB) boilers, many improvements have been made based upon observations of performance. Included in these improvements have been the refractory linings. The early refractory linings were subjected to extreme fluctuations in temperatures as the units experienced up and down conditions. As the designs were improved refractory failures were mostly due to the operating conditions and other mechanical stresses rather than continual shutdowns and startups. More recent problems observed with refractory linings are localized areas of high erosion, corrosion and cracking which result in hot spots and eventual shutdowns for repair. Today the objective of refractory suppliers and installers is to strive towards planned shutdowns rather than emergency shutdowns. This can be accomplished through partnerships between operations, material suppliers and installers. In essence, the concept is a cooperative effort between these groups to solve the variety of refractory problems in order to achieve longer refractory lining performance and less chance for emergency shutdowns. The reliability of the refractory lining is dependent on the successful combination of the material selected, proper design and the installation of the refractory material. Where these three elements combine, the lining has the best chance of performing its intended purpose.
- OSTI ID:
- 288000
- Report Number(s):
- CONF-950522--; ISBN 0-7918-1305-3
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
CIRCULATING SYSTEMS
COOPERATION
CORROSION RESISTANCE
CORROSIVE EFFECTS
FLUIDIZED BED BOILERS
HEAT RESISTANT MATERIALS
LINERS
MANUFACTURERS
MATERIALS TESTING
POTASSIUM
REFRACTORIES
SERVICE LIFE
SODIUM
TECHNOLOGY ASSESSMENT
THERMAL CYCLING
THERMODYNAMIC PROPERTIES