中文摘要：

为提高旋风分离器的除尘效率，采用RSM湍流模型和相间耦舍的随机轨道模型，模拟计算了不同排气管插入深度对旋风分离器内气相流场和除尘器中颗粒运行轨迹的影响。模拟计算结果显示：在相同条件下，与现有旋风分离器相比，排气管插入390mm时，可以在气流作用下提高颗粒物与筒锥体壁相撞的概率，除尘效率提高5％。根据模拟结果，调整旋风分离器进气管进行物理模型试验，与数值模拟结果相吻合。

英文摘要：

In order to improve the dust removal efficiency of cyclone separator, RSM turbulence model and phase coupling random orbit model are used to calculate and simulate. The influence of exhaust pipe insertion depth on gas flow field and pellet movement path in cyclone separator is simulated. The result of simulation shows that the exhaust pipe inserting 390 mm can improve the probability of collision between particulate matter and tube cone wall compared with the current cyclone separator under the same conditions, and dust removal efficiency enhances is about 5%. According to the simu, lation results, the physical model experiment is carried out for adjusting cyclone intake manifold, which is consistent with the mathematical simulation results.