Abstract��Air leak is a intractable problem of sintering machine. Air leak may lead to depression of sinter output, lower quality, increment of waste ore, serious equipment attrition, as well as high energy consumption. A new air seal equipment, that is the high minus pressure contact airproof technology for wind box of the head and tail of sinter machine, without riveting twin sheet iron are proposed. The alternation of teeth space of spider drive are designed, hydraulic damper on tail spider are added. The practice had demonstrated that the total air leak of sinter machine are reduced 27%.
2008, Vol. 26 
