摘要
随着工业智能化的不断发展,机器视觉技术被广泛应用到各大领域,在钢铁工业领域的应用也在逐步推进。本文将机器视觉技术应用到转炉底维护吹方面,在转炉附近安装耐高温机器视觉采集装置,利用机器视觉技术采集炉底风口照片,依托二级系统,将采集到炉底状态图片进行汇总并自主分析,实现炉底风口状态分类,识别炉底侵蚀、炉底过厚、正常、堵塞等多种炉底状态,判断结果在二级界面上进行呈现,并可以进行历史炉次查询。现场操作人员根据视觉判断结果,将12路底吹支管流量进行单独设定实现底吹风口气体流量精准控制;依据转炉终渣条件,结合转炉炉衬状况转炉出钢温度、转炉终渣成分,确定合理的转炉溅渣枪位、溅渣时间和溅渣料加入量,实现精准溅渣维护炉底;根据视觉识别结果进行挂渣工艺设计并采用自动挂渣操作,解决了炉底侵蚀不均匀导致的底吹风口裸露、堵塞问题,有效提高了底吹使用寿命,使得复吹转炉碳氧积稳定控制在小于0.001 8的前提下,炉龄提高了15.6%。
With the continuous development of industrial intelligence,machine vision technology is widely applied in various fields,and its application in the steel industry is gradually advancing.This article applies machine vision technology to the maintenance and blowing of the converter bottom.A high-temperature machine vision acquisition device is installed near the converter,and machine vision technology is used to collect photos of the furnace bottom air vents.With the support of a secondary system,the collected pictures of the furnace bottom state are summarized and analyzed autonomously to achieve the classification of the furnace bottom air vent state,identify various furnace bottom states such as erosion,excessive thickness,normal,and blockage.The judgment results are presented on the secondary interface and historical heat queries can be performed.The on-site operators set the flow rate of the 12 bottom blowing branch pipes separately based on visual judgment to achieve precise control of the gas flow rate at the bottom blowing outlet.Based on the final slag conditions of the converter,combined with the condition of the converter lining,the tapping temperature of the converter and the composition of the final slag,determine a reasonable position of the converter slag splashing gun,slag splashing time,and slag splashing material addition to achieve accurate slag splashing maintenance of the furnace bottom.Based on visual recognition results,the slag hanging process was designed and automatic slag hanging operation was adopted to solve the problem of exposed/blocked bottom blowing tuyeres caused by uneven bottom erosion,effectively improving the service life of bottom blowing.Under the premise of stable control of carbon and oxygen accumulation in the combined blowing converter not more than 0.0018,the effective combined blowing furnace life was increased by 15.6%.
作者
刘海波
周泉林
赵雷
Liu Haibo;Zhou Quanlin;Zhao Lei(Tangshan Iron and Steel Group Co.,Ltd.,Tangshan 063000,Hebei)
出处
《河北冶金》
2024年第12期75-79,共5页
Hebei Metallurgy
关键词
机器视觉
炉底维护
转炉底吹
溅渣
出钢温度
终渣
炉龄
machine vision
furnace bottom maintenance
bottom blowing of converter
splashing slag
drawing temperature
final slag
furnace life
