·822· 北京科技大学学报 第36卷 不利影响四 吹煤气的渗透公式为B/R=0.8-0.85U/(U+). 80 (4)提高辅助风口的喷吹位置可以增大炉身喷 70 aA 吹气在炉内的渗透区域，抑制气流的边缘发展.但 oB 60 △C 是，从热交换角度，辅助风口设置在炉身较低部位更 50 ·D 加有利于炉身的间接还原. 40 ·E 30 参考文献 [1]Meijer K,Denys M,Lasar J,et al.ULCOS:ultra-ow CO,steel- 10 making.Ironmaking Steelmaking,2009,36(4):249 Birat J P,Hanrot F.ULCOS:European steelmakers'efforts to re- 102030405060708090100 duce green house gas emissions The 5th European Coke and 距高炉的中心距离/mm Ironmaking Congress.Stockholm,2005:12 图8辅助风口位置对喷吹煤气在喷吹水平线上分布的影响 B]Bellevrat E,Menanteau P.Introducing carbon constraint in the Fig.Influence of auxiliary tuyere location on the gas distribution at steel sector:ULCOS scenarios and economic modeling.Ree Met- the injection level all,2009,16(9):318 70 4 The Technical Society,The iron and steel Institute of Japan.Pro- 口A duction and technology of iron and steel in Japan during 2009. 60 oB SU1nt,2010,50(6):777 50 AC 5]Jianwei Y,Guolong S,Cunjiang K.Oxygen blast furnace and 40 D combined cycle (OBFCC):an efficient iron-making and power E 30 generation process.Energy,2003,28(8):825 [6]Hooey L,Wikstroml J O,Sikstrom P.The future of blast furnace 20 ironmaking:a Nordic perspective.World Steel,2011,11(1):1 10 (Hooey L,Wikstroml J O,Sikstrom P.高炉炼铁技术的未来： 0 北欧的研发.世界钢铁，2011,11(1)：1) 0 1020304050607080 ) Ohno Y,Hotta H,Matsuura M,et al.Development of oxygen 距高炉的中心距离/mm blast fumace process with preheating gas injection into upper 图9辅助风口位置对喷吹煤气在料线附近(h=199mm)分布的 shaft.Tetsu-to-Hagane,1989,75(8):1278 影响 ⑧] Qi Y H,Yan D L,Gao JJ,et al.Study on industrial test of the Fig.9 Influence of auxiliary tuyere location on the gas distribution in oxygen blast fumnace.Iron Steel,2011,46(3):6 the vicinity of the stock line (h =199 mm) (齐渊洪，严定鎏，高建军，等.氧气高炉工业化试验研究 钢铁，2011,46(3)：6) 3结论 Ariyama T,Sato M.Optimization of ironmaking process for reduc- ing CO,emissions in the integrated steel works.IS//Int,2006, (1)炉身喷吹煤气在喷吹方向上渗透区域较 46(12):1736 小，随着炉身测量位置的提高，煤气逐渐向高炉中心 [10]Chu M,Nogami H,Yagi J I.Numerical analysis on blast furnace performance under operation with top gas recycling and carbon 进行渗透，渗透区域逐渐增大，煤气上升过程中产生 composite agglomerates charging.IS//Int,2004,44(12):2159 的径向涡流扩散效应对喷吹煤气渗透区域影响 01] Nogami H.Chu M,Yagi JI.Numerical analysis of blast fumace 较小 operations with top gas recycling.Rev Metall,2005,102(3) (2)炉身煤气总量和辅助风口直径对炉身喷吹 189 煤气在炉内分布影响很小，炉身喷吹煤气量与炉身 [12]Han Y H,Wang J S,Xue Q G,et al.Kinetic analysis of iron 煤气总量之比是影响喷吹煤气在炉内分布的决定性 oxide reduction in top gas reeycling oxygen blast fumace.fron- making Steelmaking,2012,39(5):313 因素 03] Chu MS,Yang X F,Yagi JI,et al.Numerical simulation of in- (3)通过炉身等浓度图发现随着U/(U+V)增 novative operation of blast fumnace based on multi-fluid model.I 加，炉身喷吹煤气所覆盖的区域逐渐增大，当U/(U Iron Steel Res Int,2006.13(6):8 +)增加到0.7时认为整个炉身内部被炉身喷吹 [14]Natsui S,Ueda S,Nogami H,et al.Penetration effect of injec- 煤气所覆盖.同时，炉身内部基本上可以分成两个 ted gas at shaft gas injection in blast furnace analyzed by hybrid model of DEM-CFD.ISIJ /nt,2011,51(9)1410 不同的流动区域：喷吹煤气主流区和上升煤气主流 [15]Natsui S,Ueda S,Nogami H,et al.Dynamic analysis of gas and 区.此外，通过回归分析推导出炉身喷吹水平上喷 solid flows in blast furnace with shaft gas injection by hybrid mod-北 京 科 技 大 学 学 报 第 36 卷 不利影响［19］． 图 8 辅助风口位置对喷吹煤气在喷吹水平线上分布的影响 Fig． 8 Influence of auxiliary tuyere location on the gas distribution at the injection level 图 9 辅助风口位置对喷吹煤气在料线附近( h = 199 mm) 分布的 影响 Fig． 9 Influence of auxiliary tuyere location on the gas distribution in the vicinity of the stock line ( h = 199 mm) 3 结论 ( 1) 炉身喷吹煤气在喷吹方向上渗透区域较 小，随着炉身测量位置的提高，煤气逐渐向高炉中心 进行渗透，渗透区域逐渐增大，煤气上升过程中产生 的径向涡流扩散效应对喷吹煤气渗透区域影响 较小． ( 2) 炉身煤气总量和辅助风口直径对炉身喷吹 煤气在炉内分布影响很小，炉身喷吹煤气量与炉身 煤气总量之比是影响喷吹煤气在炉内分布的决定性 因素． ( 3) 通过炉身等浓度图发现随着 U/( U + V) 增 加，炉身喷吹煤气所覆盖的区域逐渐增大，当 U/( U + V) 增加到 0. 7 时认为整个炉身内部被炉身喷吹 煤气所覆盖． 同时，炉身内部基本上可以分成两个 不同的流动区域: 喷吹煤气主流区和上升煤气主流 区． 此外，通过回归分析推导出炉身喷吹水平上喷 吹煤气的渗透公式为 B /Ｒ = 0. 8 － 0. 85U/( U + V) ． ( 4) 提高辅助风口的喷吹位置可以增大炉身喷 吹气在炉内的渗透区域，抑制气流的边缘发展． 但 是，从热交换角度，辅助风口设置在炉身较低部位更 加有利于炉身的间接还原． 参 考 文 献 ［1］ Meijer K，Denys M，Lasar J，et al． ULCOS: ultra-low CO2 steel￾making． Ironmaking Steelmaking，2009，36( 4) : 249 ［2］ Birat J P，Hanrot F． ULCOS: European steelmakers’efforts to re￾duce green house gas emissions / / The 5th European Coke and Ironmaking Congress． Stockholm，2005: 12 ［3］ Bellevrat E，Menanteau P． Introducing carbon constraint in the steel sector: ULCOS scenarios and economic modeling． Ｒev Met￾all，2009，16( 9) : 318 ［4］ The Technical Society，The iron and steel Institute of Japan． Pro￾duction and technology of iron and steel in Japan during 2009． ISIJ Int，2010，50( 6) : 777 ［5］ Jianwei Y，Guolong S，Cunjiang K． Oxygen blast furnace and combined cycle ( OBF-CC) : an efficient iron-making and power generation process． Energy，2003，28( 8) : 825 ［6］ Hooey L，Wikstrml J O，Sikstrm P． The future of blast furnace ironmaking: a Nordic perspective． World Steel，2011，11( 1) : 1 ( Hooey L，Wikstrml J O，Sikstrm P． 高炉炼铁技术的未来: 北欧的研发． 世界钢铁，2011，11( 1) : 1) ［7］ Ohno Y，Hotta H，Matsuura M，et al． Development of oxygen blast furnace process with preheating gas injection into upper shaft． Tetsu-to-Hagane，1989，75( 8) : 1278 ［8］ Qi Y H，Yan D L，Gao J J，et al． Study on industrial test of the oxygen blast furnace． Iron Steel，2011，46( 3) : 6 ( 齐渊洪，严定鎏，高建军，等． 氧气高炉工业化试验研究． 钢铁，2011，46( 3) : 6) ［9］ Ariyama T，Sato M． Optimization of ironmaking process for reduc￾ing CO2 emissions in the integrated steel works． ISIJ Int，2006， 46( 12) : 1736 ［10］ Chu M，Nogami H，Yagi J I． Numerical analysis on blast furnace performance under operation with top gas recycling and carbon composite agglomerates charging． ISIJ Int，2004，44( 12) : 2159 ［11］ Nogami H，Chu M，Yagi J I． Numerical analysis of blast furnace operations with top gas recycling． Ｒev Metall，2005，102 ( 3) : 189 ［12］ Han Y H，Wang J S，Xue Q G，et al． Kinetic analysis of iron oxide reduction in top gas recycling oxygen blast furnace． Iron￾making Steelmaking，2012，39( 5) : 313 ［13］ Chu M S，Yang X F，Yagi J I，et al． Numerical simulation of in￾novative operation of blast furnace based on multi-fluid model． J Iron Steel Ｒes Int，2006，13( 6) : 8 ［14］ Natsui S，Ueda S，Nogami H，et al． Penetration effect of injec￾ted gas at shaft gas injection in blast furnace analyzed by hybrid model of DEM-CFD． ISIJ Int，2011，51( 9) : 1410 ［15］ Natsui S，Ueda S，Nogami H，et al． Dynamic analysis of gas and solid flows in blast furnace with shaft gas injection by hybrid mod- ·822·