| 摘要 |
PURPOSE:To eliminate an external disturbance for an outer combustion and keep a stable condition of combustion by a method wherein a second shutter is opened or closed at a stage where a first shutter is closed to form an air-tight chamber in a process in which the fuel is dropped and supplied into a combustion unit. CONSTITUTION:When a supplying and dropping of solid fuel 45 is detected, a driving motor 33 operates a driving lever 30 in a direction of A after a desired time is elapsed, a shutter 22 is pressed by a spring 28, stopped when the raised part 22a is struck against a supplying pipe 21 and the interior of the supplying pipe 21 is sealingly closed. Further, the driving lever 30 is operated in a direction of A to break an operating relation with the shutter 22, the raised part 23a of the shutter 23 is operated until it is struck against a hook claw 31 of the driving lever 30 and a limit switch 35 is operated. Due to this fact, the shutter 23 is released, the solid fuel 45 is supplied into a combustion unit 16 via a feeding cylinder 17. |
