热镀锌烟雾干法净化

THE DRY PURIFICATION OF FUME EMITTED FROM HOT DIP GALVANIZING

熔剂热镀锌生产所产生的烟雾会给环境带来严重污染。锌雾的形成与热镀锌工艺和使用的氯化铵、氯化锌熔剂有关。由于其粒径极小,并带高粘性和极易吸湿潮解,所以很难治理。干法布袋除尘器净化白色锌雾的技术比其它方法优越。其主要手段是温度控制,并且需要一系列的技术装备给予保证。上海第三钢铁厂通过多年研究和实验解决了这项课题,并在镀锌板生产线上应用成功,到目前为上,已历经了二年多的连续运行考验。

The fume emitted from hot dip galvanizing with flux brings about severe environmental pollution. The galvanizing process and fluxes such as ammonium chloride-zinc chloride are responsible for the fume. The white fume is difficult to be dealt with, because the particles in it have extremely small size, high viscidity and good deliquescence. The dry purifying method of galvanizing fume by a fabric collector is more advantageous than others. This method is performed mainly through temperature control and with the help of necessary units. Many studies and experiments on it have been carried out in recent years at Shanghai No. 3 Steel Works, and many encumbered problems have been solved. Now it has been successfully applied in the line of galvanizing sheet production of the Works for more than two years.