顶侧复合连续炼铜系统开发之工艺流程再造

Process Reengineering of Combined Top Blown and Side Blown Continuous Copper Smelting System Development

富氧顶吹浸没熔炼工艺是在特定时期引进并在国内实现消化创新和广泛应用的铜冶炼技术,为我国铜冶炼行业从传统熔炼工艺向现代强化熔炼工艺的跨越作出重要贡献。近年来,连续炼铜技术和短流程技术快速发展,造锍熔炼在高富氧浓度、高铜锍品位、高温和高处理能力方向上不断突破。在高质量发展要求和技术快速进步的背景下,国内各生产企业结合自身实际围绕铜冶炼系统的绿色节能降耗开展了系列探索和研究,取得了一系列成果。本文围绕新时期铜精矿富氧顶吹浸没熔炼工厂技术升级改造的工艺创新与流程再造进行探索,提出总体思路和开发方向,包括主体设备供风装置增加侧吹喷枪,并对冶金炉炉体结构及其他配套设施进行相应的改造,取消原料制粒系统和沉降电炉,实现高品位铜锍冶炼和连续炼铜,以期为顶吹熔池熔炼工厂技术和装置的升级改造提供技术储备、指导及参考,推动行业向低碳、绿色、环保方向迈进。

The oxygen-enriched top blown submerged smelting process is a copper smelting technology introduced in a specific period and realized digestion innovation and wide application in China.It has made an important contribution to the leap of China 's copper smelting industry from traditional smelting process to modern intensive smelting process.In recent years,with the rapid development of continuous copper smelting technology and short process technology,matte smelting has made continuous breakthroughs in the direction of high oxygen concentration,high matte grade,high temperature and high processing capacity.Under the background of high-quality development requirements and rapid technological progress,domestic production enterprises have continuously carried out a series of exploration and research on green energy saving and consumption reduction of copper smelting system in combination with their own reality,and achieved a series of results.This paper focused on the process innovation and process reengineering of the technological upgrading and transformation of the copper concentrate oxygen-enriched top blown submerged smelting plant in the new era,and put forward the general idea and development direction,including the addition of side blown lances to the main equipment air supply device,and the corresponding transformation of the structure of the metallurgical furnace body and other supporting facilities,the abolition of the raw material granulation system and the settling electric furnace,the realization of high-grade copper matte smelting and continuous copper smelting.The upgrading and transformation of the melting plant technology and equipment provides technical reserves,guidance and reference,and promotes the industry to move towards low-carbon,green and environmental protection.