铜火法精炼炉降低天然气单耗的生产实践

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英文篇名：Production practice of reducing natural gas consumption in the process of smelting copper by pyrometallugical refining furnace 作者：周旋 英文作者：ZHOU Xuan; 关键词：火法精炼炉 ; 粗铜冶炼 ; 铜阳极板 ; 炉时 ; 天然气单耗 ; 物表质量 英文关键词：pyrometallugical refining furnace;;crude copper smelting;;copper anode plate;;furnace time;;natural gas consumption;;surface quality 中文刊名：YSYL 英文刊名：China Nonferrous Metallurgy 机构：青海铜业有限责任公司; 出版日期：2019-04-28 出版单位：中国有色冶金 年：2019 期：v.48 语种：中文; 页：YSYL201902002 页数：5 CN：02 ISSN：11-5066/TF 分类号：14-18

摘要

内蒙古某冶炼公司采用火法精炼炉生产铜阳极板,对上游吹炼工序产生的粗铜进一步冶炼,以除掉粗铜中的硫、铁、铅、铋、锑和砷等杂质。但是在使用过程中,火法精炼炉工艺存在天然气单耗高、炉时长、产品铜阳极板表面存在大量的蜂窝状气孔等问题。对现存问题进行分析后,通过控制铜水温度和阳极板冷却方式、改进炉门水套连接方式和冷却水胶管间的连接方式、改善造渣剂、更换铜口砖尺寸和完善天然气烧嘴尺寸及角度等措施,火法精炼的炉时由最早的平均24 h降为20 h左右,天然气单耗较改造前降低了约20～30m~3/tCu,同时铜阳极板质量提升,并节约能耗,增加了经济效益。
        A smelting company in Inner Mongolia used a pyrometallugical furnace to produce copper anode plates,further smelting the crude copper produced in the upstream coverting process to remove the impurities such as sulfur, iron, lead, antimony, bismuth and arsenic. However, the pyrometallugical process had problems such as high natural gas consumption, long furnace time, and a large number of honeycomb pores on the surface of the copper anode plate. After analyzing the problems, the measures were implemented, such as controlling the temperature of liquid copper water and the cooling method of the anode plate, improving the furnace door water jacket connection and the cooling water glue connection, improving the slag forming agent, replacing the size of the copper gate brick, and improving the size and angle of the natural gas burner. The pyrometallugical furnace time was reduced from 24 h to 20 h, and the natural gas consumption was reduced about 20-30 m~3/tCu, and the copper anode plate quality was improved. These improvements save energy and increase economic efficiency.

引文

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