文档介绍：基于 FLUENT 和 EDEM 的石灰预热器气固耦合模拟与
结构优化
[王观民 1,2,沈丙振 1,2,乔斌 1,2]
[1 洛阳矿山机械工程设计研究院有限责任公司,471039]
[2 矿山重型装备国家重点实验室(中信重工机械股份有限公司)471039]
[ 摘要] 应用流体分析软件 FLUENT 和离散元 EDEM 颗粒分析软件对预热器内烟气和石灰石进行气固
耦合模拟,得到烟气在预热器内的流线图和速度分布云图。针对模拟分析结果优化预热器内部
结构,使得烟气在预热器内流动更加均匀,降低了烟气出口温度,减少了能源消耗。
[ 关键词] 预热器;气固耦合模拟;Fluent;EDEM
Gas-solid coupling simulation in limestone preheater and
structure optimization based on Fluent and EDEM
[WANG Guanmin1,2,SHEN Bingzhen1,2,QIAO Bin 1,2]
[1Luoyang Mining Machinery Engineering Design Institute Co.,Ltd.,471039]
[2State Key Laboratory of Mining Heavy Equipment(CITICHIC),471039]
[ Abstract ] Fluent and EDEM were applied to simulate Gas-solid coupling in a preheater, and gas
motion trajectory distribution contours and the flow velocity distribution contours were
obtained. According to simulation and analysis results, the internal structure of the preheater
was optimized, thus the gas flowed more uniform in the preheater, and the temperature of
the outlet gas and the power consumption reduced.
[ Keyword ] preheater; Gas-solid coupling simulation; Fluent; EDEM
1 前言
预热器是回转窑煅烧活性石灰的关键设备之一,回转窑的窑尾烟气在预热器内和石灰
石完成热交换,以达到降低烟气的排放温度,提高石灰石进窑温度的目的。但在实际生产
过程中,预热器内石灰石受热不均,不仅造成窑尾烟气排放温度过高,而且石灰煅烧质量
也不稳定。
目前也有针对预热器内部流场分布的研究[1],但是并没有考虑石灰石在预热器内部堆
积的无序性对烟气流动的影响,所以其对预热器内烟气流动的模拟分析参考价值不大。笔
者尝试使用流体分析软件 FLUENT 和离散元 EDEM[2]颗粒软件对预热器内窑尾烟气进行气