Restrain device that metallurgy of copper smelting furnace produced coking

The utility model provides a restrain device that metallurgy of copper smelting furnace produced coking, belongs to copper smelting technique field. Its characterized in that the 1 diameter d of inner tube of device and 2 diameter D's of outer tube ratio are 1: , 2~1: 3, the flue gas entry 5 of inner tube 1 is linked together with smelting furnace exhaust -heat boiler flue gas export pipeline, the exhanst gas outlet 6 and the dust remover admission line of inner tube 1 are linked together, the both ends of outer tube 2 are sealed just to open completely has overgrate air import 3 and 4, outer tube diameter D of overgrate air export to be 1: , 5~1: 8 with comparing of outer tube length L, in order to use the device and to coordinate technology can effectively suppress or control the coking in smelting furnace and the exhaust -heat boiler. 种抑制铜冶金熔炼炉产生结焦的装置，属于铜冶炼技术领域。其特征在于所述装置的内管1直径d和外管2直径D之比为1﹕2～1﹕3；内管1的烟气入口5与熔炼炉余热锅炉烟气出口管道相连通；内管1的烟气出口6与除尘器进气管道相连通；外管2的两端完全封闭且开有二次风进口3和二次风出口4，外管直径D与外管长度L之比为1﹕5～1﹕8；以使用该装置并配合工艺方可有效抑