| 摘要 |
PURPOSE:To prevent the formation of clinkers by supplying combustion air to the fluidized bed for a predetermined period of time after stopping the supply of fuel to the fluidized bed to completely burn the fuel remaining in the fluidized bed. CONSTITUTION:The supply of fuel 2 is stopped by stopping the operation of a fuel supplier 4. But if the operation of a motor 3 is stopped, a timer operating signal is supplied to a timer 12 by a signal generator 11. The timer 12 starts to operate thereby. When a time which has been preset elapses, a damper closing signal is sent to damper operating devices 13 and 14, and dampers 15 and 16 are closed to stop the supply of air A and also stop the operation of the fluidized bed 8. Since the air A is supplied for a predetermined period of time after the fuel supply, the medium is fluidized, and the fuel remaining within the furnace burns substantially completely and no melting phenomenon appears.
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