Rotating composting drum has air holes, fitted with valve plate assemblies, which are opened and closed as wheels ride against an external ramp to push the plate open and return springs close the plate after the ramp

System to give a controlled opening/closing action to the air hole of a rotating drum (1) has a plate forming a valve (12) which is moved between a closed position where it seals the air hole (18) and an open position, is new. System to give a controlled opening/closing action to the air hole of a r...

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Hauptverfasser: DELECOUR ALAIN, MORLIERE THIERRY, DECLERCQ THIERRY
Format: Patent
Sprache:eng ; fre
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Zusammenfassung:System to give a controlled opening/closing action to the air hole of a rotating drum (1) has a plate forming a valve (12) which is moved between a closed position where it seals the air hole (18) and an open position, is new. System to give a controlled opening/closing action to the air hole of a rotating drum (1) has a plate forming a valve (12) which is moved between a closed position where it seals the air hole (18) and an open position. The plate movement is operated by a control unit against a concentric ramp around the drum exterior. The valve plate assembly (3) has a wheel (15) which rides against the ramp to move the valve plate into the open position through a shaft (13). Springs (19) bring the valve plate back into the closed position when the wheel leaves the ramp. Dispositif pour l'ouverture et la fermeture contrôlée d'un évent de tambour tournant (1), ce dispositif comprenant une plaque formant soupape (12) montée mobile entre une position de fermeture, d'obturation de l'évent (18), et une position d'ouverture de l'évent, le déplacement de cette plaque (12) de sa position de fermeture à une position d'ouverture étant provoquée par l'appui d'un organe de commande contre une rampe sensiblement concentrique et exteme au tambour. Ensemble formé par un tambour tournant pourvu d'au moins un dispositif de ce type.