挡风抑尘技术在火电厂煤尘治理中的应用

Application of Wind Proofing and Dust Suppression Technology in Thermal Power Plant Coal-dust Control

通过对火电厂储煤场扬尘机理的分析,论述了挡风防尘技术原理和挡风抑尘网的结构组成,对挡风板开孔率、挡风网高度、遮蔽距离等影响削减风速、抑制扬尘的主要参数进行了分析。从环境影响角度对煤尘起尘强度、煤尘地面浓度进行了计算,并对挡风抑尘技术的节能降耗效果进行分析,认为挡风防尘技术适合西北地区火电厂的煤尘治理。

Through the mechanism analysis of coal storage yard dust emission in thermal power plant, this paper discusses the principle of ~＇ind proofing and dust suppression technology and the structure of the wind proofing and dust suppression device, analyzes several main parameters ＇,：fftecting wind deceleration and dust suppression, such as the opening ratio of wind shield, the height of shelter net, covered distance and so on. From the point of view of environmental impact, the paper calculates a dust emission rate and the ground concentration of the coal-dust, analyzes the energy saving effect of the wind proofing and dust suppression technology, which verifies that the technology is suitable for coal-dust control for thermal power plant in northwest China.