Shredder dust feeding device, reverberatory furnace provided with this feeding device, and furnace for burning shredder dust

Abstract

The present invention relates to a device for feeding shredder dust to a furnace such as a reverberatory furnace. This device comprises a feeding chute that passes to the inside of the reverberatory furnace and is fitted to the ceiling of the reverberatory furnace. Shredder dust can be fed from this feeding chute which also allows oxygen enriched air to be supplied to the feeding chute and fed to the inside of the reverberatory furnace. Further, the present invention relates to a reverberatory furnace in which a burner is able to be installed in a wall portion of one end side thereof. A plurality of feeding ports to which are connected the feeding chutes of the shredder dust feeding devices are provided at the one end side in the ceiling portion thereof forming a plurality of staggered rows facing the other end side.

1 . A device for feeding shredder dust to a reverberatory furnace in which shredder dust is fed to a reverberatory furnace for non-ferrous smelting and is burned, wherein a feeding chute that passes to the inside of the reverberatory furnace is fitted to a ceiling of the reverberatory furnace and shredder dust can be fed from the feeding pipe, and wherein oxygen enriched air can also be supplied to the feeding nozzle and fed to the inside of the reverberatory furnace.  
     
     
         2 . A device for feeding shredder dust according to  claim 1 , wherein the feeding chute is branched partway along its length and the shredder dust is fed from one end of the branched pipe while the oxygen enriched air is supplied in from the other end of the branched pipe.  
     
     
         3 . A device for feeding shredder dust according to  claim 1 , wherein an air supply nozzle that has a smaller diameter than the feeding chute is inserted in the other end of the branched feeding chute and the distal end of the air supply nozzle is positioned adjacent to the branched portion of the feeding chute and the oxygen enriched air is supplied in from the air supply nozzle.  
     
     
         4 . A reverberatory furnace for non-ferrous smelting provided with the shredder dust feeding facilities, wherein a burner is able to be installed in a wall portion of one end side of the reverberatory furnace and a plurality of feeding ports to which are connected the feeding chutes of the shredder dust feeding facilities are provided at the one end side in a ceiling portion forming a plurality of staggered rows facing the other end side.  
     
     
         5 . A reverberatory furnace according to  claim 4 , wherein in the ceiling portion, the one end side where the feeding ports are provided is raised above the other end side.  
     
     
         6 . A reverberatory furnace according to  claim 4 , wherein a feed chute of the feed facilities is connected to each one of the plurality of feeding ports and the positions at which shredder dust is fed to the feeding hoppers are arranged in a single row.  
     
     
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