高炉富氧鼓风技术发展现状简析  

Progress of BF Oxygen-enriched Blasting Technology

作　　者：徐润生 赵鹏[1] 张建良 叶涟[2] XU Runsheng;ZHAO Peng;ZHANG Jianliang;YE Lian(State Key Laboratory of Advanced Metallurgy,University of Science and Technology Beijing,Beijing 100083,China;School of Metallurgy and Ecological Engineering,University of Science and Technology Beijing,Beijing 100083,China)

机构地区：[1]北京科技大学钢铁冶金新技术国家重点实验室,北京100083 [2]北京科技大学冶金与生态工程学院,北京100083

出　　处：《炼铁》2024年第1期6-11,共6页Ironmaking

基　　金：安徽省重点研究与开发计划(202210700037);新疆维吾尔自治区重大科技专项项目(2022A01003);五矿集团科技专项经费资助(2021ZXD01)。

摘　　要：高炉富氧鼓风技术取得了明显进展,如新型氧煤枪、SIP等先进高比例富氧技术的推广应用,而面临的难题主要是,高比例富氧后,高炉呈现“上冷下热”和边沿气流发展等状况,影响高炉稳定顺行。2020年,新疆八钢开启氧气高炉冶炼实践,第一阶段实现35%高富氧冶炼目标,第二阶段试验将引入欧冶炉CO_(2)脱除后的煤气,打通煤气循环的工艺流程,实现50%的超高富氧技术突破。展望未来,高炉发展方向是富氧率、喷煤量不断提高,并逐渐步人高富氧大喷煤的背景中,最终走向全氧高炉冶炼。BF oxygen-enriched blasting technologies advances greatly,represented by promotion and application of advanced new type of oxygen-coal lance,SIP,and other high-rate oxygen enrichment technologies.However,some problems also appear after applying high-rate oxygen enrichment.The main ones are the phenomenon of"cold at the upper part and hot at the lower part of the furnace"and development of edge gas flow,which affect the stability and smooth running of the furnace.In 2020,Xinjiang Bagang launches the test of oxygen enriched smelting,and achieves 35%oxygen enriched smelting at the first stage;In the second stage of test,it is designed to hit the goal of 50%oxygen-enriched smelting by using the OY furnace gas with CO_(2)removed,and tunneling the gas flow for smooth gas circulation.In the future,the BF technologies will develop along the way of higher and higher oxygen enrichment rate and pulverized coal injection amount until realizing 100%oxygen enriched smelting.

关 键 词：高炉 富氧鼓风 富氧率 氧煤枪 序列脉冲喷吹技术 

分 类 号：TF54[冶金工程—钢铁冶金]