Abstract: A process of erecting interior combustion and checker chambers in a hot blast stove by lining the checker chamber and building the chamber wall from a vertically movable scaffold in the checker chamber shaped to conform with the interior thereof, laying up checkerwork in the checker chamber beneath the movable scaffold, these two operations being supplied from outside the stove through feed openings at progressive heights, and lining the combustion chamber from a vertically movable work scaffold within the combustion chamber. All three principle operations are carried on concurrently.

Abstract: A process of erecting interior combustion and checker chambers in a hot blast stove by lining the checker chamber and building the chamber wall from a vertically movable scaffold in the checker chamber shaped to conform with the interior thereof, laying up checkerwork in the checker chamber beneath the movable scaffold, these two operations being supplied from outside the stove through feed openings at progressive heights, and lining the combustion chamber from a vertically movable work scaffold within the combustion chamber. All three principal operations are carried on concurrently.

Abstract: Contaminating ions are removed from an aqueous medium, e.g. hexavalent chromium ions from cooling tower waters, by an electrochemical method which includes formation of an insoluble iron compound or complex of the contaminant ion, utilizing an anode of iron, iron alloy or insoluble iron compound. The electrodes are treated with an acid solution at regular intervals to remove any substances formed on or lodged between the electrodes. The electrolytic cell includes a plurality of closely spaced generally parallel plate electrodes with electric potential applied to the two end electrodes, and an electrode near each end electrode is of a size protecting the end electrode from flux field effects.

Abstract: A refuse feeder and charging system is provided for a solid waste destruction system wherein a high temperature disposal of waste materials occurs. In such a destruction system, waste materials must be fed or charged to the upper end of a vertical gasification chamber from which the waste materials move downwardly under the force of gravity as the combustible materials are converted to molten slag and resultant gases and vapors. The refuse feeder includes a storage hopper for uniformly feeding solid waste material contained therein to a conduit means which conveys the waste material to the aforesaid gasification chamber. The storage hopper further includes an inclined vibrating pan in the bottom thereof for facilitating the uniform conveyance of waste material to the conduit means and a first set of sealing doors which may be opened and closed for purposes of batch filling the storage hopper.

Abstract: A body including a discharge passage and a runner surface extending into the passage fits in an opening provided adjacent the bottom of a furnace wherein solid material is exposed to hot gas in a manner forming a liquid waste which flows along a bottom surface of the furnace for removal. The discharge passage communicates with an outlet for removing liquid waste, and the runner surface meets the furnace bottom surface with a substantial portion of the runner surface being within the furnace. A conduit arrangement is connected to the furnace bustle pipe for supplying hot gas through a passage in the body which is directed toward the runner surface, and auxiliary fuel can be supplied to the conduit. The liquid waste material flows along the furnace bottom surface and along the runner surface through the discharge passage to the outlet, and the location of the runner surface minimizes heat loss from the liquid material. The hot gas supplied to the liquid waste material keeps it in a flowing state.