47.灰付着挙動と灰溶融性の相関検討

抄録

This study focus on the relationship between the ash fusibility with the change of the gas temperature and the ash deposition characteristics in the ash softening region. The fusibility test using DTA and the deposition test using the ash deposition facility was conducted for 5 types of coal. As a result, it is cleared that the deposition characteristics have a close relationship with the ash liquid phase ratio which is calculated from DTA curve. Besides, it is obvious that ash particles which temperature is near the ash fusion point have tendency to adhere because of its high liquid phase ratio.