摘要
2020年7月投产的河南某铅冶炼搬迁技改工程,设计年处理铅精矿90万t、年产电铅30~40万t。火法冶炼工艺路线为:精矿熔炼采用底吹氧化炉、高铅渣还原采用底吹还原炉。截至目前,按小时投料量推算,该生产线已经突破年产30万t电铅、目前稳定在35万t电铅规模,正计划向40万t的产能目标进发。其中,该工程中的底吹氧化炉和底吹还原炉设计规格均为Φ5×28 m,是当今世界上单系列产能最大的铅冶炼设备。在此之前,底吹氧化炉的最大规模为年产16万t电铅,底吹还原炉的最大规模为年产10万t电铅,因此本工程中底吹氧化炉和底吹还原炉的大型化设计备受关注。本文介绍了Φ5×28 m底吹氧化炉和Φ5×28 m底吹还原炉的设计情况,并结合生产运行对一些具体问题进行了分析和探讨。
A lead smelter relocation&technical transformation project in Henan,which was put into op-eration in July 2020,is designed to process 900 kt of lead concentrate to produce 300 kt to 400 kt of lead.Pyrometallurgical process route:concentrate smelting in bottom-blowing oxidation furnace,and high-lead slag reduction in bottom-blowing reduction furnace.By far,the production line has exceeded the annual capacity of 300 kt of cathode lead,and is currently stable at 350 kt/a of cathode lead.At present,it is planning to move towards the targeted production capacity of 400 kt/a.The designed size of the bottom-blowing oxidation furnace and the bottom-blowing reduction furnace in this project is bothΦ5×28 m,be-ing the lead smelting equipment with the largest single-series production capacity in the world today.Be-fore that,the maximum capacity of bottom-blowing oxidation furnace was 160 kt of cathode lead per year,and the maximum capacity of bottom-blowing reduction furnace was 100 kt of cathode lead per year.Therefore the enlarged design of the bottom-blowing oxidation furnace and the bottom-blowing reduction furnace in this project has attracted much attention.This paper introduces the design of theΦ5×28 m bottom-blowing oxidation furnace and theΦ5×28 m bottom-blowing reduction furnace,and analyzes and discusses some specific issues in conjunction with production operation.
作者
李栋
林屹
曹珂菲
LI Dong;LIN Yi;CAO Ke-fei
出处
《有色设备》
2022年第1期54-56,共3页
Nonferrous Metallurgical Equipment
关键词
精矿熔炼
高铅渣还原
底吹氧化炉
底吹还原炉
大型化
concentrate smelting
high-grade Pb slag reduction
bottom-blowing oxidation furnace
bot-tom-blowing reduction furnace
enlargement
