| 摘要 |
PURPOSE:To provide a fluidized' furnace having excellent recovery efficiency of exhaust heat and a method for operating the same. CONSTITUTION:A fluidized-bed furnace comprises at least a pair of heat storage units 6 which can be alternately operated by an operation of a switching valve 5 in a fluidized-bed furnace body 1. A method for operating the furnace comprises the steps of supplying combustion gas exhausted from the body only to one of the storage units by the operation of the valve for a predetermined time, preheating combustion air by thermal energy retained in the gas, then switching the valve to supply the gas to the other storage unit for a predetermined time, similarly preheating the air, sequentially switching the valves, and alternately preheating the air by the storage units. |
