一、引言广西来宾等地所产的高锌锡精矿,经粗炼后产出高锌锡烟尘。这种烟尘广西某厂曾配料制粒后在反射炉中进行还原熔炼,但是钖的直收率仅为50%,而且二次产尘率高,产一吨粗钖就要产出一吨烟尘,而烟尘中含锌量12%左右,使湿法回收锌遇到困难。为了选择一种较理想的炉型及较好的还原熔炼工艺条件,以做 I. INTRODUCTION High zinc and tin concentrates produced by Guangxi guests and other places produce high zinc and tin dust after being smelted. This soot factory in Guangxi has granulated material in the refiner after reduction smelting furnace, but the straight yield is only 50%, and secondary dust production rate is high, produce a ton of coarse 钖 will produce a ton of soot , While the dust in the zinc content of about 12%, wet recovery of zinc encountered difficulties. In order to choose a better furnace and better reduction smelting process conditions to do