Effects of coal characteristics and combustion conditions on slagging behavior of coal blends
Conference
·
OSTI ID:585410
- Huazhong Univ. of Science and Technology, Hubei (China)
Five individual coals with varying ash content and volatile matter and a series two-component coal were selected. An experimental investigation on stagging behavior of selected samples has been conducted. The stagging degree of coal blends mixed with two coals of similar reactivity and stagging potential was similar to that of the individual coals. However, when one coal was blended with another coal with widely different reactivity or stagging potential, the stagging degree of coal blends changed significantly. Ash fusion temperatures for various percentages of two different coal blends illustrate the non-arithmetic averaging. The changes of coal blend viscosity were influenced by the fusion slag types of base coals. Temperature and atmosphere affect mineral species evaporation. An overall gray clustering model was used to evaluate the slagging degree of the coals. The prediction results were in agree with those by practical stagging experiment.
- Research Organization:
- Coal and Slurry Technology Association, Washington, DC (United States)
- OSTI ID:
- 585410
- Report Number(s):
- CONF-980309--PROC.
- Country of Publication:
- United States
- Language:
- English
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