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为了进一步研究循环流化床锅炉系统的气固两相流动特性，为分离器的优化设计提供参考依据，应用多脉冲激光全息技术，对循环流化床锅炉分离器入口段气流中不同筛分颗粒之间的相互作用情况进行了试验研究。通过对所拍全息照片的分析判读，发现１００μｍ尺度的细小煤粉绕过较大的球形颗粒时几乎没有小颗粒卷入小球的尾迹，而浓相小颗粒群绕流小球时，在小球的边缘形成一个高浓度区，随后部分小颗粒进入了小球的尾迹。小颗粒在尾迹中重力作用表现明显，但未观察到回流作用使其反向运动。不规则小颗粒在行进中有明显的取向，几个长条颗粒以６５０ｒ／ｓ的速度高速转动。试验表明脉冲激光全息系统具有很好的诊断动态颗粒场的能力，是一种适合于深入研究颗粒运动细节的有效手段。
In order to further study the gas-solid two-phase flow in a circulating fluidized bed boiler system, and to provide a reference for the optimal design of the separator, multi-pulse laser holography is used to measure the gas- The interaction between the experimental study. Through the analysis and reading of the holographic photographs taken by the photographer, it is found that there is almost no small particles entangled in the small ball’s trail when the small coal particles of 100μm scale bypass the larger spherical particles. However, The edge of the ball forms a high concentration zone and then some of the small particles enter the wake of the ball. Small particles in the wake of the gravitational effect of obvious, but did not observe the role of reflux to reverse movement. Irregular small particles in the course of the obvious orientation, a few long particles to 650r / s speed high-speed rotation. Experiments show that the pulsed laser holographic system has a good ability to diagnose the dynamic particle field and is an effective method for further study of the particle movement details.