Optimization of Heat Recovery of Sinter Ore with Heat-Collecting Hood of Circular Cooler

doi:10.12068/j.issn.1005-3026.2015.08.015

Abstract

Abstract: The effects of some factors， including bed voidage， particle size， bed thickness， temperature and velocity of inlet air and sinter temperature， on the average temperature of air in heat-collecting hood on circular cooler of sinters were analyzed by simulation. The curves and the corresponding functions which describe the relationship between the average temperature of air and the factors were obtained by fitting the simulation results. A semiempirical function was developed with the method of undetermined coefficients and the fitting functions. Using the semiempirical function， the temperature of air can be predicted with error less than 8% compared with the test results. The arrangement of the traditional heat collecting hood was analyzed with the semiempirical function. In order to decrease the energy loss and increase the efficiency of waste heat recovery of sinter， an optimized collecting hood arrangement was proposed.

Key words: sinter, circular cooler, heat-collecting hood, curve fitting, simulation

CLC Number:

TF046
TK11

TIAN Wan-yi， ZHANG Jia-yuan， DAI Chuan-de， WANG Jian-ping. Optimization of Heat Recovery of Sinter Ore with Heat-Collecting Hood of Circular Cooler[J]. Journal of Northeastern University Natural Science, 2015, 36(8): 1130-1135.

References

[1]董辉，力杰，罗远秋，等.烧结矿冷却过程的实验研究［J］.东北大学学报:自然科学版， 2010，31(5):689-692.(Dong Hui，Li Jie，Luo Yuan-qiu，et al.Experimental study on cooling process of sinter［J］.Journal of Northeastern University:Natural Science，2010，31(5):689-692.)
[2]Zhang X H，Chen Z，Zhang J Y，et al.Simulation and optimization of waste heat recovery in sinter cooling process［J］.Applied Thermal Engineering，2013，54:7-15.
[3]Tanaka N.Waste heat recovery from sintering plants ［J］.Transactions of the Iron and Steel Institute of Japan，1980，20(3):200-203.
[4]Horio K，Kitamura N，Ariake Y.Waste energy recovery at Kashima Steel Works［J］.Iron and Steel Engineer，1982，59(7):30-36.
[5]Caputo A C，Cardarelid G，Pelagagge P M.Analysis of heat recovery in gas-solid moving beds using a simulation approach［J］.Applied Thermal Engineering，1996，16(1):89-99.
[6]Pelagagg P M，Caputo A C，Cardareli G.Comparing heat recovery schemes in solid bed cooling［J］.Applied Thermal Engineering，1997，17(11):1045-1054.
[7]Pelagagge P M，Caputo A C，Cardareli G.Optimization criteria of heat recovery from solid beds［J］.Applied Thermal Engineering，1997，17(1):57-64.
[8]Hinkley J，Waters A G，Litster J D.An investigation of pre-ignition air flow in ferrous sintering［J］.International Journal of Mineral Processing，1994，42(1/2):37-52.
[9]Leong J C，Jin K W，Shiau J S，et al.Effect of sinter layer porosity distribution on flow and temperature fields in a sinter cooler［J］.International Journal of Minerals，Metallurgy and Materials，2009，16(3):265-272.
[10]Vafai K.Convective flow and heat transfer in variable-porosity media［J］.Journal of Fluid Mechanics，1984，147:233-259.
[11]Ergun S.Fluid flow through packed columns［J］.Chemical Engineering Progress，1952，48(2):89-94.
[12]刘伟，范爱武，黄晓明.多孔介质传热传质理论与应用［M］.北京:科学出版社，2006:28-32.(Liu Wei，Fan Ai-wu，Huang Xiao-ming.Porous media theory and application of heat and mass transfer［M］.Beijing:Science Press，2006:28-32.)
[13]Wang B L，Lee C W，Reitz R D，et al.A generalized RNG turbulence model and its application to a light-duty diesel engine operating in a low temperature combustion regime［J］.The International Journal of Engine Research，2012，14(3):279-292.(上接第1124页)3) 粒子进入反应器后沿着侧壁流动，大约旋转一周时，沿螺旋线轨迹旋转向下流动，当粒子正好旋转到底部出口时，则会从出口流出；否则粒子继续沿螺旋线旋转，直到最后流出反应器.

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