电弧炉粉尘的形成：颗粒的诞生
Dust formation in electric arc furnace : birth of the particles
摘要：
电弧炉粉尘的特征表明，钢液表面气泡破裂是粉尘的主要排放源。因此，我们开发了一种实验装置来研究这种现象。与空气-水系统的情况一样，气泡破裂产生两种类型的液滴：薄膜液滴和喷射液滴。用高速摄像机观察了射流液滴的形成。在过滤器上收集膜滴气溶胶，然后通过SEM、粒度分析和重量分析进行表征。结果进行了介绍和讨论。这两种类型的投影的量化导致的结论是，膜滴投影代表灰尘的主要来源。膜滴的量随着母气泡尺寸的增大而显著减小。气泡直径小于4.5mm时，不形成膜滴。因此，充分减小气泡尺寸将代表用于大幅减少电弧炉粉尘排放的有效解决方案。
英文摘要：
The characterization of Electric Arc Furnace (EAF) dust shows that bubble burst at the liquid steel surface is the principal source of dust emission. We have therefore developed an experimental device for studying this phenomenon. As in the case of the air-water system, the bubble-burst gives birth to two types of droplets: film drops and jet drops. The jet drop formation is observed with high-speed video. The film drop aerosol is collected on filters and then characterized by means of SEM, granulometric and gravimetric analyses. Results are presented and discussed. The quantification of both types of projections leads to the conclusion that the film drop projections represent the major source of dust. The amount of film drops greatly decreases with the parent bubble size. Under 4.5 mm in bubble diameter, no film drops are formed. Decreasing enough the bubble size would therefore represent an effective solution for reducing drastically the EAF dust emission.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
