| 摘要 |
PROBLEM TO BE SOLVED: To enable a heat accumulative material to be replaced with another heat accumulative material by a method wherein some dusts and some dispersed substances are gradually and the same amount of the heat accumulative material is supplemented. SOLUTION: An air guiding space part 8 is constructed such that an arch-like member is installed in a heat accumulating chamber 2, a heat accumulative material dropping and guiding part is arranged among both skirts of the arch- like member and a wall of the heat accumulating chamber, an inside part of the arch-like member is communicated with an inner side of a furnace 7 through an air injection part 6 and at the same time an outer circumferential surface of the arch-like member is formed at the heat accumulative material dropping and guiding surface, a bottom part of a heat accumulating chamber 2 is formed at an air fluidized bed 10 and an opening or closing valve 12 is arranged at a heat accumulative material discharging part 11 of the air fluidized bed 10. |
