Patent ID: 7510679
Filing Date: 2009-03-31
Classification: C22B,F27B,F27D

Abstract:
1. A structure for cooling a taphole for draining molten metal such as matte and slag from a furnace body of a flash furnace for copper smelting, comprising: a hollow jacket body having a forward portion formed with a brim-like flange and inner frame made of the same material as the furnace body for readily welding to an exit part of the furnace body, and also having a rearward part composed of an outer frame made of copper that surrounds a hollow portion which is filled with refractory material and has a taphole cutout therein, wherein said outer frame is surrounded by cooling pipes made of copper and provides passage for flow of cooling fluid therein, said inner frame of furnace material of the forward part and said outer frame of the rearward part of said hollow jacket body being integrally joined together for readily attaching it as an integral unit by welding the forward part to the furnace body, while the rearward part has a high cooling effect of removing heat from the refractory material lining the taphole.