富氧底吹熔炼处理铅阳极泥的工艺革新与试验研究

Technological Innovation and Experimental Study on the Treatment of Lead Anode Mud with Oxygen Bottom Blowing Melting

传统的阳极泥熔炼存在物料占用多,生产周期长,生产成本高、产能低等问题。根据富氧底吹强化熔炼提高系统处理能力、满足生产要求的思路,对富氧强化引起的渣线侵蚀问题进行了试验研究。通过在渣中配入一定量的PbO替代侵蚀性强的纯碱与萤石,取得了良好效果。研究了氧化铅配入量、熔炼时间、熔化温度、焦丁的配入及其反应温度、氧气参与等条件对还原熔炼的影响。

The traditional anode mud smelting process has some disadvantages, such as long production period, high production cost and low productivity. Because the oxygen bottom blowing melting process can improve the treatment capacity of the system and meet the production requirement, the problem of the slag line erosion caused by oxygen enrichment was investigated. Lead oxide was added in the slag instead of soda and fluorite with strong corrosion and a good effect was gained. The influences of lead oxide and the amount, melting time, melting temperature, coke nut amount and its reaction temperature and the oxygen inlet on the reduction-smelting were studied.