Based on the bench-scale opposed multi-burner (OMB) coal-water slurry (CWS) entrained-flow gasification platform, the influence of burner geometry on atomization characteristics of the CWS in gasifier is investigated. The visualization imaging system is used to obtain image sequences that record the dynamic process of the CWS atomization. The effective image processing algorithms and particle tracking algorithms are applied to analyze and discuss the atomization, particle motion and particle fluctuation characteristics. The primary atomization mode of the CWS jets with different burner structures is the superpulsating atomization. With the increase of A₁/A₂, the Sauter mean diameter (SMD) of the CWS droplets in the statistical region first increases and then decreases. Along the radial distance, the SMD of the CWS droplets generally increases first and then decreases. As the burner outlet area ratio increases, the particle size fluctuates more intensely, and the particle velocity turbulence first decreases and then increases.

基于实验室规模的对置多燃烧器（OMB）水煤浆（CWS）夹带流气化平台，研究了燃烧器几何形状对气化炉中水煤浆雾化特性的影响。可视化成像系统用于获取记录水煤浆雾化动态过程的图像序列。应用有效的图像处理算法和粒子跟踪算法对雾化、粒子运动和粒子波动特性进行分析和讨论。不同燃烧器结构的水煤浆射流的主要雾化方式是超脉冲雾化。随着A ₁ /A ₂的增加，统计区域中CWS液滴的Sauter平均直径（SMD）先增加然后减小。沿着径向距离，CWS 液滴的 SMD 一般先增加后减小。随着燃烧器出口面积比的增大，颗粒尺寸波动更加剧烈，颗粒速度湍流先减小后增大。