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forecast in a blast furnace． J Northeast Univ Nat Sci， 1997，18( 3) : 247 ( 余琨，段培宁，张绍启． 高炉炉温监测与预报的新探索． 东 北大学学报: 自然科学版，1997，18( 3) : 247) ［3］ Yang C，Zhou H C，Huang Z F． Visualization of 3-D temperature distribution in a 300 MW twin-furnace coal-fired boiler． J China Univ Min Technol，2008，18( 1) : 33 ［4］ Luo Z X，Zhou H C． A combustion-monitoring system with 3-D temperature reconstruction based on flame-image processing tech￾nique． IEEE Trans Instrum Meas，2007，56( 5) : 1877 ［5］ Wang F，Ma Z Y，Yan J H，et al． Model and experiment for three-dimensional temperature measurement based on flame image． J Combust Sci Technol，2004，10( 2) : 140 ( 王飞，马增益，严建华，等． 利用火焰图像重建三维温度场 的模型和实验． 燃烧科学与技术，2004，10( 2) : 140) ［6］ Zhang S F，Wen L Y，Bai C G，et al． The temperature field digi￾tization of radiation images in blast furnace raceway． ISIJ Int， 2006，46( 10) : 1410 ［7］ Liu D，Yan J H，Wang F，et al． Experimental reconstructions of flame temperature distributions in laboratory-scale and large-scale pulverized-coal fired furnaces by inverse radiation analysis． Fuel， 2012，93: 397 ［8］ Liu D，Wang F，Yan J H，et al． Inverse radiation problem of tem￾perature field in three-dimensional rectangular enclosure containing inhomogeneous anisotropically scattering media． Int J Heat Mass Transfer，2008，51( 13) : 3434 ［9］ Wang F，Liu D，Chen K F，et al． Efficient inverse radiation anal￾ysis of temperature distribution in participating medium based on backward Monte Carlo method． J Quant Spectrosc Ｒadiat Transfer， 2008，109( 12) : 2171 ［10］ Ouyang Q，Zhao L M，Wen L Y，et al． Simulation study on ra￾diative imaging of pulverised coal combustion in blast furnace raceway． Ironmaking Steelmaking，2011，38( 3) : 181 ［11］ Helle M，Saxen H． Simulation of tuyere-raceway system in blast furnace． Ironmaking Steelmaking，2006，33( 5) : 407 ［12］ Gupta G S，Ｒudolph V． Comparison of blast furnace raceway size with theory． ISIJ Int，2006，46( 2) : 195 ［13］ Yuu S，Umekage T，Kadowaki M． Numerical simulation of parti￾cle and air velocity fields in raceway in model blast furnace and comparison with experimental data ( cold model ) ． ISIJ Int， 2010，50( 8) : 1107 ［14］ Ouyang Q，Wen L Y，Bai C G，et al． Ｒaceway section tempera￾ture measurement algorithm based on machine vision． J Iron Steel Ｒes，2007，19( 2) : 5 ［15］ Paige C C，Saunders M A． LSQＲ: an algorithm for sparse linear equations and sparse least squares． AMC Trans Math，1982，8 ( 1) : 43 ［16］ Paige C C，Saunders M A． LSQＲ: sparse linear equations and least squares problems． AMC Trans Math，1982，8( 2) : 195 ［17］ Liu D，Wang F，Huang Q X，et al． Study on solving ill-posed matrix equation in reconstruction of three-dimensional tempera￾ture distribution in furnace． Proc CSEE，2007，27( 26) : 72 ( 刘冬，王飞，黄群星，等． 三维炉膛温度场重建中病态矩阵 方程的求解研究． 中国电机工程学报，2007，27( 26) : 72) · 5701 ·