论文部分内容阅读
为适应黄金生产的需要,我厂在密闭鼓风炉炉料中配入一部分低铜金精矿,因而冰铜品位一般只有18～25％,加大了转炉吹炼的负担。为了寻求提高冰铜品位的途径,我们对密闭鼓风炉熔炼部分焙烧矿进行了生产试验。 生产试验用焙烧矿是用2.2米~2的沸腾炉生产的,铜精矿在800～900℃进行全氧化焙烧。铜精矿和焙烧矿的成分如下(％):铜精矿——Cu8～9、Fe35～37、S35～37、SiO_24～6、CuO0.4、As0.8～
In order to meet the needs of gold production, I plant in the closed blast furnace charge with a portion of low copper concentrate, which matte grade is generally only 18 to 25%, increasing the converter blowing burden. In order to seek ways to improve the matte grade, we conducted a production test on the roasted ore from a smelting blast furnace. Production test with roasting ore is 2.2 m ~ 2 boiling furnace production, copper concentrate at 800 ~ 900 ℃ for full oxidation roasting. The composition of copper concentrate and roasted ore is as follows (%): Copper concentrate - Cu8 ~ 9, Fe35 ~ 37, S35 ~ 37, SiO_24 ~ 6, CuO0.4, As0.8 ~