一、概述一般锰矿均程度不同的含有少量铅、锌等有色金属。在冶炼高碳锰铁过程中,这些金属大部分随炉气烟尘逸出。广东高鹤县西江锰矿,含铅1—3%,占我厂锰矿用量40—50%,因此,所得烟尘含锰、铅、锌、镉均较高。两台1800千伏安电炉每天脉冲干法收得烟尘3～5吨,其中含铅1～1.2吨,锌500—600公斤,镉10公斤,锰1～1.25吨,具有回收价值。烟尘分析结果见表1。二、回收方法及工艺流程电炉锰尘中的金属元素均以氧化物存在。用炭还原时,在1100～1200℃高温下, First, an overview of the general level of manganese ore contains a small amount of lead, zinc and other non-ferrous metals. In the smelting of high-carbon ferromanganese, most of these metals escape with furnace smoke and dust. Guangdong Province, Cangjiang Xijiang manganese ore, lead 1-3%, accounting for 40-50% of the amount of manganese ore mine, therefore, the resulting smoke containing manganese, lead, zinc, cadmium are higher. Two 1,800 kilovolt-amperes electric furnace pulse dry received 3 to 5 tons of dry, including 1 to 1.2 tons of lead, zinc 500-600 kilograms, 10 kilograms of cadmium, manganese 1 to 1.25 tons, with the recovery value. Soot analysis results in Table 1. Second, the recovery methods and processes Electric furnace manganese dust in the metal elements are oxides. With carbon reduction, at 1100 ~ 1200 ℃ high temperature,