两种带涡流室分解炉内气相流场的模拟对比研究

摘要针对两种带涡流室的同种类型不同炉膛尺寸不同生产效率的分解炉建立模型，运用流体力学软件，采用Euler坐标系下的Realizable k-ε模型对分解炉内的气相流场进行了模拟与对比分析。结果表明，两种分解炉内气流场规律一致，气流进入炉膛后沿分解炉壁面螺旋上升，在分解炉中心区域则形成了低速区；但是，炉膛直径小的分解炉内的气流平均停留时间稍短，约为6.70 s，而炉膛直径大的分解炉气流平均停留时间则更长，约为9.45 s，表明其旋流程度更强，更有利于延长物料在炉内的停留时间。

	Service

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	Email Alert
	RSS
	作者相关文章
	陈晓琳
	梅书霞
	谢峻林
	王加军2
	汪宣乾
	胡贞武

关键词：分解炉; 涡流室; 气相流场; 数值模拟; Realizable k-ε模型

Abstract： Mathematical models were set up for two actual precalciners with swirl chambers for cement production．Three-Dimensional numerical simulations of gas-flow field were performed with computational fluid dynamics software in this paper．In Euler coordinate system，the fluid phase was expressed with the Realizable k-ε two equation model．The results of simulation showed that the characteristics of gas-flow of the two precalciners were similar．The gas rised spirally after being injected into the precalciner and the velocity in the center zone was lower．It also showed that larger diameter precalciner was more beneficial to prolong the residence time of materials in the precalciner, since the average residence time was 6.70 s in the small precalciner and 9.45 s in the big precalciner．

Keywords： precalciner; swirl chamber; gas-flow field; numerical simulation; Realizable k-ε model

Received 2014-04-17;

Fund:

国家科技支撑计划(2012BAC15B04)和国家“十二五”科技支撑计划项目(2011BAE29B01)。

Corresponding Authors: 谢峻林，E-mail:xjlclxy@126.com。 Email: xjlclxy@126.com

About author: 陈晓琳（1989-），女，硕士研究生，主要从事分解炉相关的数值模拟研究。

引用本文:

陈晓琳, 梅书霞, 谢峻林, 王加军, 汪宣乾, 胡贞武.两种带涡流室分解炉内气相流场的模拟对比研究[J]. 化学工业与工程, 2014,31(6): 53-58

CHEN Xiao-Lin, MEI Shu-Xia, XIE Jun-Lin, WANG Jia-Jun, WANG Xuan-Qian, HU Zhen-Wu.Numerical Simulation Study on Gas-Flow Field in Two Kinds of Precalciner with the Swirl Chamber[J]. Chemcial Industry and Engineering, 2014,31(6): 53-58