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第2期 陈川等:高炉煤粉燃烧率通用模型 ·233· (2)煤粉成分对燃烧动力学参数影响很大,在 (2):163 计算煤粉燃烧率时必须考虑煤种对反应动力学参数 (张丽丽,周慎杰,陈举华.高炉三维气固湍流和煤粉燃烧过 程数值模拟.南京理工大学学报,2007,31(2):163) 的影响.煤粉挥发分含量每提高10%,煤粉燃烧率 Zhang S F,Wen L Y,Bai C G,et al.Numerical model of tuyere 提高18%~19%.因此,当煤粉在回旋内不能充分 pulverized coal and raceway coke combustion in BF.Chongqing 燃烧时,可以通过提高煤粉挥发分含量或采用混合 Unig Nat Sci Ed,2005,28(8):42 喷吹提高煤粉燃烧率。 (张生富,温良英,白晨光,等.高炉风口煤粉及回旋区焦炭 (3)提高风温有利于提高煤粉燃烧率,但是随 燃烧过程数学模型.重庆大学学报:自然科学版,2005,28 着风温的提高,风温对煤粉燃烧率的影响逐渐减弱. (8):42) (4)降低煤粉粒径、增加氧气体积分数可以有 [10]YangT J,Cang D Q.Ding Y L Oxygen Enrichment Pulrerized Coal in Blast Furnace.Beijing:Metallurgical Industry Press, 效地提高煤粉燃烧率.煤粉颗粒粒径每减小10m, 1996 燃烧率提高10%~20%.氧气体积分数每增加 (杨天钧,苍大强,丁玉龙.高炉宫氧煤粉喷吹.北京:治金 1%,燃烧率提高2%.随着喷煤量的增加,煤粉燃烧 工业出版社,1996) 率逐渐降低.因此,当提高煤粉喷吹量时,为了保证 [11]Cen K F,Yao Q,Luo Z Y,et al.Combustion Theory and Pollu- 较高的燃烧率,实际操作过程中应提高富氧率并适 tion Control.Beijing:Mechanical Industry Press,2008 (岑可法,姚强,骆仲泱,等.燃烧理论与污染控制.北京: 当降低煤粉粒径 机械工业出版社,2008) [12]Shen Y S,Guo B Y,Yu A B,et al.Model study of the effects of 参考文献 coal properties and blast conditions on pulverized coal combus- tion.1SJt,2009,49(6):819 [Kong D W,Zhang JL,Lin X H,et al.Combustion characteris- [13]Shen Y S,Guo B Y,Yu A B,et al.Three-dimensional model- tics and kinetic analysis of blended coal in BF.J fron Steel Res, ling of coal combustion in blast furnace.IS/J Int,2008,48(6): 2011,23(11):4 777 (孔德文,张建良,林祥海,等.高炉喷吹混合煤的燃烧特性 [14]Guo B Y,Zulli P.Rogers H,et al.Three-dimensional simula- 及动力学分析.钢铁研究学报,2011,23(11):4) tion of flow and combustion for pulverised coal injection.IS/ Raygan S,Abdizadeh H,Eskandari R A.Evaluation of four coals lnt,2005,45(9):1272 for blast fumace pulverized coal injection.J Iron Steel Res Int, 15]Fu W B.Coal Combustion Theory and Macroscopic General Rule. 2010,17(3):8 Beijing:Tsinghua University Press,2003 B]Shen Y S,Guo B Y,Yu A B,et al.A three-dimensional numeri- (傅维镳.煤燃烧理论及其宏观通用规律。北京:清华大学 cal study of the combustion of coal blends in blast furnace.Fuel, 出版社,2003) 2009,88(2):255 [16]Han X L.Numerical Analysis.Beijing:Higher Education Press, 4]Jiang H B.Zhang JL,Fu JX,et al.Properties and structural op- 2011 timization of pulverized coal for blast fumace injection.J Iron Steel (韩旭里.数值分析.北京:高等教育出版社,2011) Resm,2011,18(3):6 [17]Fu W B,Zhang B L.A simple and general method for calculat- Tang G L,Na S R.The calculation of pulverized coal in raceway ing the buming rate of coal char/carbon particles in air.Combust cavity and the behaviour of the unbumnt pulverized coal.Baotou Sci Technol,1993,89:405 Univ Iron Steel Technal,1996,15(3):38 [18]Smith I W,Tyler R J.The reactivity of a porous brown coal char (唐光临,那树人.煤粉燃烧率的计算及未燃煤粉的行为.包 to oxygen between 630 and 1812 K.Combust Sci Technol,1974 头钢铁学院学报,1996,15(3):38) 9(314):87 [6]Xu W R,Wu K,Zhang LL,et al.Research on utilization factor [19]Smith I W,Tyler R J.Internal burning of pulverized semi-an- of injected into BF pulverized coal at large PCI rate.fron Steel, thracite:the relation between particle structure and reactivity. 2006,41(4):10 Fuel,1972,51(4):312 (徐万仁,吴铿,张龙来,等.高炉大喷煤时煤粉利用率的研 [20] Zhang X W,Lu PS,Cao P F,et al.The kinetics of combustion 究.钢铁,2006,41(4):10) of pulverized anthracite char in the temperature range 1200 to Zhang H B,Qin G T,Ji R S,et al.Numerical simulation of pul- 2000 K.J Eng Thermophys,1991,12(1):78 verized-coal combustion.J Beijing Univ Aeronaut Astronaut, (张喜文,路不思,曹鹏飞,等.粉状无烟煤炭粒在1200- 2009,35(5):536 2000K温度范围内燃烧的化学动力学特性.工程热物理学 (张宏博,秦国彤,纪任山,等.煤粉燃烧过程的数值模拟 报,1991,12(1):78) 北京航空航天大学学报,2009,35(5):536) 1]Fu W B.Zhang B L.A generalized relationship between the ki- [8]Zhang LL,Zhou S J,Chen J H.Numerical simulations of three- netic parameters of char combustion and coalproperties.Combust dimensional gas-particle turbulent flow and pulverized coal com- Sci Technol,1997,3(1)1 bustion in blast furnace.J Nanjing Unin Sci Technol,2007,31 (傅维标,张百立.煤焦燃烧反应动力学参数与煤种的通用第 2 期 陈 川等: 高炉煤粉燃烧率通用模型 ( 2) 煤粉成分对燃烧动力学参数影响很大,在 计算煤粉燃烧率时必须考虑煤种对反应动力学参数 的影响. 煤粉挥发分含量每提高 10% ,煤粉燃烧率 提高 18% ~ 19% . 因此,当煤粉在回旋内不能充分 燃烧时,可以通过提高煤粉挥发分含量或采用混合 喷吹提高煤粉燃烧率. ( 3) 提高风温有利于提高煤粉燃烧率,但是随 着风温的提高,风温对煤粉燃烧率的影响逐渐减弱. ( 4) 降低煤粉粒径、增加氧气体积分数可以有 效地提高煤粉燃烧率. 煤粉颗粒粒径每减小 10 μm, 燃烧 率 提 高 10% ~ 20% . 氧 气 体 积 分 数 每 增 加 1% ,燃烧率提高 2% . 随着喷煤量的增加,煤粉燃烧 率逐渐降低. 因此,当提高煤粉喷吹量时,为了保证 较高的燃烧率,实际操作过程中应提高富氧率并适 当降低煤粉粒径. 参 考 文 献 [1] Kong D W,Zhang J L,Lin X H,et al. Combustion characteris￾tics and kinetic analysis of blended coal in BF. J Iron Steel Res, 2011,23( 11) : 4 ( 孔德文,张建良,林祥海,等. 高炉喷吹混合煤的燃烧特性 及动力学分析. 钢铁研究学报,2011,23( 11) : 4) [2] Raygan S,Abdizadeh H,Eskandari R A. Evaluation of four coals for blast furnace pulverized coal injection. J Iron Steel Res Int, 2010,17( 3) : 8 [3] Shen Y S,Guo B Y,Yu A B,et al. A three-dimensional numeri￾cal study of the combustion of coal blends in blast furnace. Fuel, 2009,88( 2) : 255 [4] Jiang H B,Zhang J L,Fu J X,et al. Properties and structural op￾timization of pulverized coal for blast furnace injection. J Iron Steel Res Int,2011,18( 3) : 6 [5] Tang G L,Na S R. The calculation of pulverized coal in raceway cavity and the behaviour of the unburnt pulverized coal. J Baotou Univ Iron Steel Technol,1996,15( 3) : 38 ( 唐光临,那树人. 煤粉燃烧率的计算及未燃煤粉的行为. 包 头钢铁学院学报,1996,15( 3) : 38) [6] Xu W R,Wu K,Zhang L L,et al. Research on utilization factor of injected into BF pulverized coal at large PCI rate. Iron Steel, 2006,41( 4) : 10 ( 徐万仁,吴铿,张龙来,等. 高炉大喷煤时煤粉利用率的研 究. 钢铁,2006,41( 4) : 10) [7] Zhang H B,Qin G T,Ji R S,et al. Numerical simulation of pul￾verized-coal combustion. J Beijing Univ Aeronaut Astronaut, 2009,35( 5) : 536 ( 张宏博,秦国彤,纪任山,等. 煤粉燃烧过程的数值模拟. 北京航空航天大学学报,2009,35( 5) : 536) [8] Zhang L L,Zhou S J,Chen J H. Numerical simulations of three￾dimensional gas-particle turbulent flow and pulverized coal com￾bustion in blast furnace. J Nanjing Univ Sci Technol,2007,31 ( 2) : 163 ( 张丽丽,周慎杰,陈举华. 高炉三维气固湍流和煤粉燃烧过 程数值模拟. 南京理工大学学报,2007,31( 2) : 163) [9] Zhang S F,Wen L Y,Bai C G,et al. Numerical model of tuyere pulverized coal and raceway coke combustion in BF. J Chongqing Univ Nat Sci Ed,2005,28( 8) : 42 ( 张生富,温良英,白晨光,等. 高炉风口煤粉及回旋区焦炭 燃烧过程数学模型. 重庆大学学报: 自然科学版,2005,28 ( 8) : 42) [10] Yang T J,Cang D Q,Ding Y L. Oxygen Enrichment Pulverized Coal in Blast Furnace. Beijing: Metallurgical Industry Press, 1996 ( 杨天钧,苍大强,丁玉龙. 高炉富氧煤粉喷吹. 北京: 冶金 工业出版社,1996) [11] Cen K F,Yao Q,Luo Z Y,et al. Combustion Theory and Pollu￾tion Control. Beijing: Mechanical Industry Press,2008 ( 岑可法,姚强,骆仲泱,等. 燃烧理论与污染控制. 北京: 机械工业出版社,2008) [12] Shen Y S,Guo B Y,Yu A B,et al. Model study of the effects of coal properties and blast conditions on pulverized coal combus￾tion. ISIJ Int,2009,49( 6) : 819 [13] Shen Y S,Guo B Y,Yu A B,et al. Three-dimensional model￾ling of coal combustion in blast furnace. ISIJ Int,2008,48( 6) : 777 [14] Guo B Y,Zulli P,Rogers H,et al. Three-dimensional simula￾tion of flow and combustion for pulverised coal injection. ISIJ Int,2005,45( 9) : 1272 [15] Fu W B. Coal Combustion Theory and Macroscopic General Rule. Beijing: Tsinghua University Press,2003 ( 傅维镳. 煤燃烧理论及其宏观通用规律. 北京: 清华大学 出版社,2003) [16] Han X L. Numerical Analysis. Beijing: Higher Education Press, 2011 ( 韩旭里. 数值分析. 北京: 高等教育出版社,2011) [17] Fu W B,Zhang B L. A simple and general method for calculat￾ing the burning rate of coal char /carbon particles in air. Combust Sci Technol,1993,89: 405 [18] Smith I W,Tyler R J. The reactivity of a porous brown coal char to oxygen between 630 and 1812 K. Combust Sci Technol,1974, 9( 3 /4) : 87 [19] Smith I W,Tyler R J. Internal burning of pulverized semi-an￾thracite: the relation between particle structure and reactivity. Fuel,1972,51( 4) : 312 [20] Zhang X W,Lu P S,Cao P F,et al. The kinetics of combustion of pulverized anthracite char in the temperature range 1200 to 2000 K. J Eng Thermophys,1991,12( 1) : 78 ( 张喜文,路丕思,曹鹏飞,等. 粉状无烟煤炭粒在 1200 - 2000 K 温度范围内燃烧的化学动力学特性. 工程热物理学 报,1991,12( 1) : 78) [21] Fu W B,Zhang B L. A generalized relationship between the ki￾netic parameters of char combustion and coalproperties. Combust Sci Technol,1997,3( 1) : 1 ( 傅维标,张百立. 煤焦燃烧反应动力学参数与煤种的通用 · 332 ·
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