PURPOSE: To provide a definite sealing performance and supply incinerated articles almost in continuous mode by allowing a first stage damper to be opened immediately after an intermediate stage damper is opened and the bottom stage damper to be closed and opened after the intermediate damper is closed.
CONSTITUTION: Dampers are installed at least by three stages on an incinerated article throw-in shoot. A foreign matter penetration preventative means 20 is installed to a spot neat an insertion opening 13 of a movable valve disk 14 in a main body casing 11 for an operation section of these dampers 10A and 10B and 10C respectively. The first stage damper 10A is opened and closed promptly after the intermediate stage damper 10B is opened. The bottom stage damper 10C is opened and closed after the intermediate stage 10B is closed. At the same time, a foreign matter penetration preventative means 20 prevents deposits and dust from being brought into a casing 12, using each of the dampers 10A, 10B and 10C. This construction makes it possible to supply irregulatly-shaped incinerated articles definitely to an incinerator and enhance the sealing performance at the supply section.
AYUKAWA DAISUKE
MUKAI KEIJI
