Device for charging combustible solids to rotary kilns
AssigneesCadence Chemical Resources, Inc., Ash Grove Cement Company
InventorsJames R. Tutt, Michel R. Benoit
Life of this patent
Estimating the term…
Abstract
An apparatus is provided for charging combustible solids through a port in the wall of a rotating kiln into a heated zone of the kiln. The apparatus includes a port closure comprising inner and outer portions which cooperate to define a passage for closure-cooling air flow when the closure is in a port-closed position. A transfer assembly is mounted on the kiln wall in alignment with the port. During kiln rotation combustible solids are loaded from a staging assembly onto the transfer assembly for alignment with the port and delivery into the kiln.
Claims24
An apparatus for charging combustible solids through a port in the wall of a rotating kiln into a heated zone of the kiln, the apparatus comprising
- means for positioning the combustible solids for passage through the port,
- a closure for the port, the closure being movable between a port-closed position and a port-opened position, the closure comprising an outer portion and an inner portion, the outer and inner portions cooperating when the closure is in the port-closed position to define a passage in air-flow communication with both the heated zone of the kiln and ambient air,
- means for moving the closure between the port-closed and port-opened positions, and
- a drop tube extending from the port and into the heated zone of the kiln.
An apparatus for controlling the entry of combustible solids through a port in the wall of a rotating kiln into a heated zone of the kiln, the apparatus comprising
- a closure for the port, the closure being movable between a port-closed position and a port-opened position, the closure comprising an outer portion and an inner portion, the outer and inner portions cooperating when the closure is in the port-closed position to define a passage in air-flow communication with both the heated zone of the kiln and ambient air, and
- mean for moving the closure between the port-closed position and the port-opened position.
An apparatus for charging combustible solids through a port in a wall of a rotating kiln into a heated zone of the kiln, the apparatus comprising
- a stationary staging assembly for supporting combustible solids,
- a transfer assembly mounted on the kiln wall at a point in alignment with the staging assembly and the port for transferring combustible solids between the staging assembly and the port, and
- a port closure assembly, the port closure assembly comprising a closure movable between a port-closed position and a port-opened position, the closure comprising an outer portion and an inner portion, the outer and inner portions cooperating when the closure is in the port-closed position to define a passage in air-flow communication with both the heated zone of the kiln and ambient air, and means for moving the closure between the port-opened and port-closed positions.
Dependencies are inferred from the claim text.