METERING APPARATUS FOR INCINERATOR ASH PIT

The improvement, in an incinerator preferably of the controlled air type including a combustion chamber for burning waste material or fuel, as ash pit for receiving burnt solid materials which may include irregular-shaped solids and a conveyor mechanism for successively removing the burnt materials from the ash pit, as follows. Apparatus, positioned generally medially of the ash pit which extends generally vertically for receiving the burnt solid materials as they pass downwardly through the ash pit by gravity flow from the combustion chamber, for causing bridging and accumulation of the burnt solid materials upwardly therefrom through ash pit for providing an air barrier within the ash pit to prevent the passage of undesirable air into the controlled environment combustion chamber, and for selective actuation for selective metering of the burnt solid materials therethrough and to the bottom of the ash pit for reception by the removal conveyor mechanism to prevent clogging and jamming of the conveyor mechanism.