Abstract: System, method, and apparatus for cleaning industrial furnaces and associated structures. The system improves the dynamic pressure and cleaning of conventional air cannon systems utilizing air as a pressurized gas source for discharge by the air cannon. According to the present invention, the pressurized gas source is selected to have a density greater than air at an equivalent temperature. The increased density of the pressurized gas source improves the cleaning capability of the conventional air cannon for removing stubborn deposits.

Abstract: An apparatus for cleaning deposits from the interior surfaces of an industrial vessel, such as a kiln. The apparatus utilizes an air cannon manifold for selectively directing and venting a high volume of pressurized fluid to any one or more of a plurality of access ports defined in the vessel whereby the pressurized fluid is directed at the deposits to prevent them from adhering and accumulating on the walls of the vessel. A controller is provided to permit selection of a desired exhaust port for directing the pressurized fluid to the access ports and for sequencing an inlet valve in cooperation with a desired exhaust port.