A Study of a Two-Phase Heat Transfer Mechanism in a Vertical Sintering Cooling Furnace

Author:

Xu Weihui1,Wang Qinbao1,Zhen Juan12,Wang Weishu1,Peng Yan3,Tian Boyan1,Ruan Yushuai1,Li Renjie1

Affiliation:

1. College of Energy and Power Engineering, North China University of Water Resources and Electric Power, Zhengzhou 450045, China

2. Cscec Scimee Sci.& Tech. Co., Ltd., Chengdu 610045, China

3. Citic Heavy Industries Co., Ltd., Louyang 471039, China

Abstract

In order to explore the law of gas–solid countercurrent cooling heat transfer in a vertical sinter cooling furnace at a high temperature, based on the Euler model and the local non-thermodynamic equilibrium theory, an exergy efficiency model was built to evaluate the heat transfer process in the vertical sinter cooling furnace with different parameter changes. It was found that the inlet temperature of cooling air and sinter inlet temperature are the main factors affecting the temperature field and gas–solid heat transfer characteristics in the furnace. Under the conditions of each parameter, the cooling air temperature presents a radial “M” shape distribution. The axial cooling section is the most intense area of gas–solid heat transfer, and this part has the best heat transfer effect. When the inlet temperature of cooling air and the inlet temperature of sinter increase, the outlet temperature of sinter and the outlet temperature of cooling air increase. When the sinter equivalent diameter increases, the cooling air outlet temperature decreases gradually, while the sinter outlet temperature increases gradually. When the diameter and height of the cooling section increase, respectively, the outlet temperature of the sinter decreases and the outlet temperature of the cooling air increases. Based on dimensional analysis, the heat transfer correlation formula suitable for certain test conditions is obtained.

Funder

Project of Central Plains Science and Technology Innovation Leading Talents of Henan Province

Publisher

MDPI AG

Reference25 articles.

1. Xu, C., Liu, Z., Wang, S., and Liu, W. (2019). Numerical Simulation and Optimization of Waste Heat Recovery in a Sinter Vertical Tank. Energies, 12.

2. Leakage of Sintering-Cooling System;Dong;Iron and Steel,2012

3. Process of Waste Heat Recovery and Utilization for Sinter in Vertical Tank;Dong;China Metallurgy J.,2012

4. Constructal optimization of a sinter cooling process based on exergy output maximization;Feng;Appl. Therm. Eng.,2016

5. Numerical Investigation of Gas Flow in Vertical Tank for Recovering Sinter Waste Heat;Feng;J. Northeast. Univ. (Nat. Sci. Ed.),2015

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