摘要
打磨作业过程中,利用组合式通风打磨台进行通风除尘已得到广泛应用,但大多根据经验设置通风参数。以数值模拟为研究手段,采用CFD-DPM风流-粉尘耦合数值模拟方法,研究粉尘最大浓度和呼吸带粉尘浓度与风量分配和总排风量的关系,对组合式通风打磨台进行通风除尘系统参数优化,为金属打磨粉尘治理提供依据。研究结果表明:当组合式通风打磨台总排风量为1 850 m3·h-1、台面与壁面的配风比K=1. 67时,粉尘质量浓度较低,防尘效果最好。
In the process of grinding operation, the dust removal by ventilation with the combined ventilation grinding table has been widely used, but the ventilation parameters have almost been set according to the experience. Taking the numerical simulation as the research means, the relationship of the maximum dust concentration and dust concentration at breathing zone with the air volume distribution and total exhaust air volume were studied by using the CFD - DPM airflow-dust coupling numerical simulation method, and the parameters optimization of ventilation dust removal system was carried out on the combined ventilation grinding table, so as to provide the foundation for the control of metal grinding dust. The results showed that when the total exhaust air volume of the combined ventilation grinding table was 1,850 m^3/h, and the air distribution ratio of table surface and wall surface was 1.67, the mass concentration of dust was relatively low, with the best effect of dust prevention.
作者
林浩宇
蒋仲安
杨斌
陈建武
LIN Haoyu;JIANG Zhongan;YANG Bin;CHEN Jianwu(School of Civil and Resource Engineering,University of Science and Technology Beijing,Beijing 100083;China Academy of Safety Science and Technology,Beijing 100029,China)
出处
《中国安全生产科学技术》
CAS
CSCD
北大核心
2018年第11期160-165,共6页
Journal of Safety Science and Technology
基金
国家重点研发计划(2016YFC0801700)
中国安全生产科学研究院基本科研业务费专项资金项目(2016JBKY01
2018JBKY01)
关键词
固定打磨
粉尘浓度
数值模拟
配风比
总排风量
fixed grinding
dust concentration
numerical simulation
air distribution ratio
total exhaust air volume
