烧结砖隧道窑冷却带温度场数值模拟研究  

Numerical Simulation of Temperature Field in Cooling Zone of Sintered Brick Tunnel Kiln

作　　者：王晓伟[1] 王海洋 陈庆照 WANG Xiaowei;WANG Haiyang;CHEN Qingzhao(School of Mechanical and Electrical Engineering,Shandong Jianzhu University,Ji'nan 250101,China)

机构地区：[1]山东建筑大学机电工程学院,山东济南250101

出　　处：《软件导刊》2023年第10期131-138,共8页Software Guide

基　　金：山东省科技型中小企业创新能力提升工程项目(2022TSGC1383)。

摘　　要：深入分析烧结砖窑烧过程中冷却带的温度场分布,对墙材行业实现烧结砖优质高产及节能减排具有重要意义。首先以某烧结砖生产企业的坯垛单元为研究对象,分析冷却带中坯垛单元的传热机理,并建立相应的数学模型及几何模型;然后对模型进行多面体网格划分,结合企业数据设置初始参数、边界条件;最后利用Fluent对隧道窑冷却带传热进行数值模拟仿真研究,分析风速及孔洞形状等因素对烧结砖温度场的影响。结果表明,选用最佳冷却风速能够有效减小砖坯的内外表面温度差;合理的孔洞形状可以提高坯垛温度分布的均匀性;适当加大各砖坯间的气流通道宽度可进一步提高冷却效果。研究结果为企业在窑烧过程中优化冷却段生产工艺以及生产高品质烧结砖提供了理论依据与技术指导。Deeply analyzing the analysis of temperature field distribution in the cooling zone during the firing process of sintered brick kilns is of great significance for the wall material industry to achieve high-quality and high-yield sintered bricks,as well as energy conservation and emission reduction.Firstly,take the stack unit of a certain sintered brick production enterprise as the research object,analyze the heat trans⁃fer mechanism of the billet stack unit in the cooling zone,and establish the corresponding mathematical model and geometric model.Then,the model is divided into polyhedral grids,and initial parameters and boundary conditions are set based on enterprise data.Finally,Numerical simulation research on heat transfer in the cooling zone of the tunnel kiln were conducted using Fluent software.The influence of factors such as wind speed and hole shape on the temperature field of sintered bricks was analyzed.The results show that selecting the optimal cooling wind speed can reduce the temperature difference between the inner and outer surfaces of the brick;appropriate hole shape can improve the unifor⁃mity of stack temperature distribution;properly increasing the width of the airflow channel between each brick billet can further improve the cooling effect.The research results provide theoretical basis and technical guidance for enterprises to optimize the production process of the cooling section and produce high-quality sintered bricks during the kiln firing process.

关 键 词：隧道窑 冷却带 传热 温度场 数值模拟 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]