초록 ▼

A feeding apparatus for feeding whole tires into a cement kiln comprising a feed opening in the shell of the kiln, a passageway including a sleeve extending within and outside the kiln, an arcuate sector valve device for closing the passageway and timed to open so as to allow the tires to fall into

A feeding apparatus for feeding whole tires into a cement kiln comprising a feed opening in the shell of the kiln, a passageway including a sleeve extending within and outside the kiln, an arcuate sector valve device for closing the passageway and timed to open so as to allow the tires to fall into the kiln through the passageway. The sector valve having an outer perforated wall and an inner wall, the perforated wall allowing ambient air to circulate between the outer and inner wall to keep the outer wall cool for contact with the tires. A transfer device is provided for transferring the tires onto the feeding apparatus wherein the transfer device includes fingers while the feeding apparatus includes a fork receiving tray interdigitated with the fingers to pick up the tires as the kiln rotates.

대표청구항 ▼

[ We claim:] [1.] An apparatus for feeding solid wastes into a cement kiln having an elongated tubular shell rotatable on its axis comprising a feed opening defined in the shell intermediate the ends of the tubular shell, a solid waste feeding assembly including a sleeve extending through the openin

[ We claim:] [1.] An apparatus for feeding solid wastes into a cement kiln having an elongated tubular shell rotatable on its axis comprising a feed opening defined in the shell intermediate the ends of the tubular shell, a solid waste feeding assembly including a sleeve extending through the opening and forming a passageway having a central axis extending radially out of the tubular shell, with a first portion projecting into the interior of the kiln and a second portion exterior of the shell; the second portion of the sleeve including a substantially rectangular cross-section; a valve means in the second portion for closing and opening the passageway, the valve means including a gate pivotable about a first axis normal to the central axis of the passageway and including a primary wall extending in a plane including the pivot axis and a secondary wall joined to the primary wall, the secondary wall defining a curve generated by a straight line parallel to the pivot axis, one of the primary and secondary walls being located upstream of the other relative to the passageway and being perforated to allow circulation of ambient air between the primary and secondary walls to cool the walls, whereby in a valve closed position the other of the primary and secondary walls, located downstream relative to the passageway, closes off the passageway and the wall located upstream extends across the passageway, and in a valve opened position the primary and secondary walls are clear of the passageway.