自动化学报2025，Vol.51Issue(2)：343-355,13.DOI:10.16383/j.aas.c240378
基于红外与可见光视觉的高炉铁口铁水温度场在线检测
Online Measurement of Molten Iron Temperature Field at Blast Furnace Taphole Based on Infrared and Visible Vision
摘要
Abstract
The molten iron temperature field(MITF)at blast furnace taphole is an important information for char-acterizing the molten iron quality and judging the furnace temperature condition.However,the interference of dyna-mic dust in the blast furnace casting field during the tapping process makes it challenging to obtain the MITF accur-ately online.To this end,this paper presents for the first time a measurement method for MITF at blast furnace ta-phole based on infrared and visible vision,which uses visible image to provide prior dust interference for infrared visual temperature measurement.Firstly,the infrared and visible vision coordination temperature measurement sys-tem is designed to obtain the infrared image and visible image of the molten iron flow at blast furnace taphole sim-ultaneously.The infrared image of the molten iron flow represents the original MITF information,and the visible image provides the data basis for quantifying dust transmittance.Secondly,an estimation model of dust transmit-tance in visible images based on color consistency and an estimation model of dust transmittance in infrared images based on haze-line prior are proposed to obtain dust transmittance in infrared band.Finally,combined with the principle of infrared radiation temperature measurement,an approximate infrared temperature compensation model based on dust transmittance is constructed to realize the targeted compensation of MITF and obtain the accurate molten iron temperature with minimal error.Industrial experiments show that compared with only using infrared vision to measure the MITF,the proposed method can significantly reduce the temperature measurement error caused by dust and provide continuous and reliable molten iron temperature data for blast furnace control.关键词
高炉炼铁/铁水温度场/红外视觉/透射率估计/温度补偿Key words
Blast furnace ironmaking/molten iron temperature field(MITF)/infrared vision/transmittance estima-tion/temperature compensation引用本文复制引用
潘冬,许川,龚芃旭,蒋朝辉,桂卫华..基于红外与可见光视觉的高炉铁口铁水温度场在线检测[J].自动化学报,2025,51(2):343-355,13.基金项目
国家自然科学基金(62303491),湘江实验室重大项目(22XJ01005),湖南省科技创新计划(2024RC1007),工业控制技术全国重点实验室开放课题(ICT2024B05)资助Supported by National Natural Science Foundation of China(62303491),Major Program of Xiangjiang Laboratory(22XJ01005),Science and Technology Innovation Program of Hunan Province(2024RC1007),and National Key Laboratory of Industrial Control Technology Open Project(ICT2024B05) （62303491）
