高炉富氧鼓风技术发展现状简析
Progress of BF Oxygen-enriched Blasting Technology
徐润生 1赵鹏 2张建良 3叶涟3
作者信息
- 1. 北京科技大学钢铁冶金新技术国家重点实验室,北京 100083;北京科技大学冶金与生态工程学院,北京 100083
- 2. 北京科技大学钢铁冶金新技术国家重点实验室,北京 100083
- 3. 北京科技大学冶金与生态工程学院,北京 100083
- 折叠
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CO2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,并逐渐步入高富氧大喷煤的背景中,最终走向全氧高炉冶炼.
Abstract
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 ap-pear 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 fur-nace gas with CO2 removed,and tunneling the gas flow for smooth gas circulation.In the future,the BF technologies will de-velop 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Key words
blast furnace/oxygen enriched blasting/oxygen enrichment rate/oxygen-coal lance/sequence impulse injection technology引用本文复制引用
基金项目
安徽省重点研发计划(202210700037)
新疆维吾尔自治区重大科技专项(2022A01003)
五矿集团科技专项(2021ZXD01)
出版年
2024
NETL
NSTL
万方数据