In this study, the optimisation model of fuel distribution base on numerical simulation was proposed to reduce the fuel consumption of sintering process. The simulation model of sintering process was carried out according to the heat and mass transfer, and the physical and chemical reactions of sintering. Then the heat income and expenditure of solid mixture in different materials unit was analysed via the simulation model. And the fuel proportion was adjusted on the basis of the difference between total heat quantity and heat quantity that the materials unit required to reach setting temperature. This model was validated by sintering pot test, the simulation results of bed temperature at different depth were very close to the detection results. The sintering pot test shows that the sinter yield and quality indices had little change after the optimisation of fuel distribution, while the solid fuel consumption was decreased by 3.83 kg t−1.
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References
1.
XuHLPanGYShaoYJet al.Analysis of energy consumption evaluation indicator for iron and steel production. Energy Metall Ind.2017;36(2):3–7.
2.
ZhouJCLiXPShangguanFQet al.Status of energy consumption and energy saving technical measures of sintering process in China. Energy Metall Ind.2010;29(2):23–26.
3.
KravetsYS.Reasonable charging in sintering bed and reduced the fuel consumption of iron ore sintering. Sinter Pellet.1986;3:71–74.
4.
LiSD, editor. A collection of translated essays in agglomeration. Changsha: Central South University Press; 1988.
5.
XuRTWuSL, editors. Study on Chinese iron ore sintering – the paper collection of Professor Zhou. Beijing: Metallurgical Industry Press; 1997.
6.
FuJYJiangTZhuDQ.Sintering and pelleting. Changsha: Central South University Press; 1996.
7.
HeYD.The heat balance of sintering in different layers. Sinter Pellet. 1984;(05):54–60.
8.
HuangZCJiangYMaoXMet al.Fuel appropriate distribution in iron ore sintering. J Cent South Univ. 2006;37(5):884–890.
9.
MaoXM.Research on the application of microwave heating technology in iron ore sintering ignition [PhD thesis]. Changsha (China): Central South University; 2013. p. 31–44.
10.
XuB.Research on fundamental and technology of heat-homogenizing sintering of iron ores [PhD thesis]. Changsha (China): Central South University; 2012. p. 20–46.
11.
ZhangXH.Simulation and optimization of flue gas circulation sintering process based on fuel layered distribution [PhD thesis]. Changsha (China): Central South University; 2013. p. 72–84.
12.
LiFSZhangXHZhangJYet al.Fuel appropriate distribution based on the highest temperature control in iron ore sintering. J Cent South Univ.2015;46(2):386–393.
13.
WangGWenZLouGFet al.Mathematical modeling and combustion characteristic evaluation of a flue gas recirculation iron ore sintering process. Int J Heat Mass Transfer.2016;97:964–974. doi: 10.1016/j.ijheatmasstransfer.2016.02.087
14.
YangWRyuCChoiSet al.Mathematical model of thermal processes in an iron ore sintering bed. Metal Mater Int.2004;10(5):493–500. doi: 10.1007/BF03027355
15.
YangWRyuCChoiSet al.Modeling of combustion and heat transfer in an iron ore sintering Bed with considerations of multiple solid phases. ISIJ Int. 2004;44(3):492–499. doi: 10.2355/isijinternational.44.492
16.
ZhaoJPLooCEDukinoRD.Modelling fuel combustion in iron ore sintering. Combust Flame. 2015;162(4):1019–1034. doi: 10.1016/j.combustflame.2014.09.026
17.
ZhouHZhaoJPLooCEet al.Numerical modeling of the iron ore sintering process. ISIJ Int. 2012;52(9):1550–1558. doi: 10.2355/isijinternational.52.1550
18.
ZhaoJP.Numerical modelling of the iron ore sintering process and its experimental validation [PhD thesis]. Hangzhou (China): Zhejiang University; 2012. p. 60–72.
19.
PatissonFBellotJPAblitzerD.Study of moisture transfer during the strand sintering process. Metall Trans B. 1990;21:37–47. doi: 10.1007/BF02658114
20.
ZouZY.Mathematical model and computer simulation of moisture transfer process during sintering. Sinter Pellet.1994;2:1–7.
21.
LongHMFanXHMaoXMet al.Sintering bed temperature distribution model based on heat transfer. J Cent South Univ.2008;39(3):436–442.
22.
YoungRW.Dynamic mathematical model of (iron-ore) sintering process. Ironmak Steelmak.1977;6:321–328.
23.
FanXHPengKQChenXLet al.Simulation model for temperature of iron ore sinter bed. Min Metall Eng.2012;32(2):67–70.
24.
HartmanMTrnkaOVeselyVet al.Predicting the rate of thermal decomposition of dolomite. Chem Eng Sci. 1996;51(23):5229–5232. doi: 10.1016/S0009-2509(96)00363-6
25.
NathNKMitraK.Optimisation of suction pressure for iron ore sintering by genetic algorithm. Ironmak Steelmak. 2004;31(3):199–206. doi: 10.1179/030192304225018118
26.
NathNKMitraK.Mathematical modeling and optimization of two-layer sintering process for sinter quality and fuel efficiency using genetic algorithm. Mater Manuf Process. 2005;20(3):335–349. doi: 10.1081/AMP-200053418
27.
WangGWenZLouGFet al.Mathematical modeling of and parametric studies on flue gas recirculation iron ore sintering. Appl Therm Eng. 2016;102:648–660. doi: 10.1016/j.applthermaleng.2016.04.018
28.
CastroJASazakiYYagiJ.Three dimensional mathematical model of the iron ore sintering process based on multiphase theory. Mater Res.2012;15(6):848–858. doi: 10.1590/S1516-14392012005000107
29.
LiuBFengYHJiangZYet al.Heat and mass transfer in sintering process. J Chem Ind Eng.2012;63(5):1344–1353.
