重型机械Issue(2)：90-95,6.
LF炉脱氧剂智能喷吹系统设计与工业应用
Design and industrial application of intelligent deoxidizer injection system for LF
赵腾 1何少红 1杨宝宏 1李伟峰 1余嘉 1曹用 1朱涛2
作者信息
- 1. 中国重型机械研究院股份公司 陕西 西安 710018
- 2. 国机重型装备集团股份有限公司 四川 德阳 618000
- 折叠
摘要
Abstract
The efficiency improvement of deoxidation process in ladle furnace(LF)is a key link in the production of metallurgical clean steel.To address the industry pain points of low utilization rate of deoxidizers(≤65%),high labor intensity(single shift operation≥20 times),and severe dust pollution(TSP concentration>15 mg/m 3)in the current manual feeding mode,this article innovatively develops an intelligent spraying system based on dynamic deoxidization model.By establishing a mathematical model for dense phase pneumatic conveying and optimizing key parameters such as conveying pressure(0.4～0.5 MPa)and solid gas ratio of 25,the dual closed-loop PID control module,three channel uniform injection device,and intelligent injection control model were constructed in this article.Industrial applications shows that the spraying accuracy of the system get to±1.5 kg/min,the utilization rate of deoxidizer is increased to 89.2%,the dust concentration in the work area is reduced to3.8 mg/m3,and the equipment availability rate reaches 99.3%;The initial consumption of deoxidized carbon powder decreased by51.8%,and the mid-term consumption of silicon carbide decreased by48.5%,saving the cost per ton of steel.The fluctuation of the endpoint oxygen content in the deoxidized steel liquid is significantly reduced.Which verified the significant advantages of the system in process control reliability,environmental friendliness and metallurgical effect stability.关键词
LF精炼炉/脱氧剂/气力输送/智能喷吹Key words
ladle furnace/deoxidizer/pneumatic conveying/intelligent injection分类
冶金工业引用本文复制引用
赵腾,何少红,杨宝宏,李伟峰,余嘉,曹用,朱涛..LF炉脱氧剂智能喷吹系统设计与工业应用[J].重型机械,2025,(2):90-95,6.
