硫化锌精矿沸腾焙烧烟尘——双旋灰、电尘、常作为生产电锌、电镉、硫酸锌及其他锌制品原料,其化学成分及物相分析如表1。因为电尘粒度小,比重轻,含铜低硫高,一般在湿法生产电锌或硫酸锌过程中,多搭配在焙砂或双旋灰中浸出,而且搭配比不能太高,否则,沉清过滤性能差、上清率低。 Zinc sulfide concentrate boiling roasting soot - double-rotating ash, electric dust, often as the production of electric zinc, electric cadmium, zinc sulfate and other raw materials of zinc, its chemical composition and phase analysis in Table 1. Because the electric dust particle size is small, the proportion of light, low sulfur and copper, generally in the wet production of zinc or zinc sulfate process, with more leaching in calcite or double-rotating ash, and with the ratio can not be too high, or Poor filtration performance, supernatant rate is low.