Ardal Og Sunndal Verk A.s.

Paul A Schneider

Carlo Eliassen

Jonas R Landmark

A system for removing packing coke from baking chambers of a furnace for baking carbon bodies includes a crane mounted for movement along a rail, a silo supported by the crane, a suction tube connected to the silo and insertable into packing in a furnace baking chamber, and structure for supplying vacuum to the suction tube to remove the packing coke therethrough from the chamber into the silo. The vacuum structure includes a closed vacuum duct extending parallel to the rail, the vacuum duct having an upper slide surface and a plurality of valves spaced along the slide surface. A stationary vacuum source is connected to the vacuum duct and creates therein a vacuum. A sliding box is supported by the crane and is movable thereby along the vacuum duct over the valves on the slide surface. Each valve is openable by a respective pneumatic cylinder. An activating rail is mounted on the sliding box and is operable upon movement of the sliding box along with vacuum duct to activate the pneumatic cylinders to open respective valves, thereby communicating the vacuum from the stationary vacuum source through the vacuum ducts, the opened valves and the sliding box to the silo and the suction tube. The sliding box has supporting wheels rolling on the vacuum duct and guide wheels positioning the sliding box on the vacuum duct. The sliding box has a sliding gasket sealingly contacting the slide surface. The sliding gasket includes a rubber skirt into which is fitted an elastic gasket of a material with a low coefficient of friction and sliding along the slide surface.

Method and equipment for removing packing coke from baking chambers for

A suction tube unit for removing packing coke from vertical spaces within a ring furnace for producing carbon bodies includes a plurality of elongated suction and air supply tubes, the tubes being arranged to extend parallel to each other and being aligned in a single straight row, with each adjacent pair of the suction tubes being separated by a separate one of the air-supply tubes, thus forming an elongated assembly adapted to fit within the vertical space of the furnace. The assembly is supported at an upper portion thereof by a telescopic mounting. All of the tubes are open at lower ends thereof. A suction device is connected to the upper end of the suction tubes for creating a vacuum within the suction tubes to thereby withdraw the packing coke therethrough. Upper portions of the air-supply tubes have therein orifices to supply ambient air into the air-supply tubes and to aid in withdrawal of the packing coke through the suction tubes.

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Oslo, Norway

Paul A Schneider