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首页> 外文期刊>Journal of Mechanical Science and Technology >Evaluation of fine particle removal capability of multi inner stage cyclone
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Evaluation of fine particle removal capability of multi inner stage cyclone

机译：多内阶段旋风分离器的细颗粒去除能力评估

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摘要

A three-layer-type multi inner stage (MIS) cyclone capable of removing fine particles generated by electronic industrial processes was successfully developed with a high processing rate, minimal maintenance and repair cost, and low energy loss. To investigate the capability of the MIS cyclone, experiments were performed using Al2O3 particles with diameters of 1, 3, 5, 10, 15 and 20 m under particle inlet velocities of 0.85, 2.55, 4.25, 5.94 and 8.49 m/s. Lapple (1950), Barth (1956), and Iozia and Leith (1989) prepared a cyclone efficiency prediction graph using a collection efficiency prediction model under the same operating conditions as the MIS cyclone. They verified the cyclone efficiency by comparing the efficiency prediction graph and the general cyclone experimental data with the MIS cyclone experimental data. For an Al2O3 fine particle diameter smaller than 5m, the particle removal capability of the MIS cyclone was observed to be significantly higher than that of the predicted efficiency of a general cyclone and its actual experimental efficiency. Furthermore, the variation of collection efficiency with particle size was not as significant as that of a general cyclone, which suggested the MIS cyclone possesses a more stable removal capability. Pressure drop measurement results of the MIS cyclone showed that a maximum pressure drop of 11 mmAq occurred under an inlet velocity of 8.49 m/s, which was considerably lower than that of a general cyclone pressure drop (50 approximate to 150 mmAq).
机译：能够成功开发出一种能够去除电子工业过程产生的细颗粒的三层型多内级（MIS）旋风，以高处理速率，最小的维护和维修成本，低能量损失。为了研究MIS旋风分离器的能力，在颗粒入口速度为0.85,2.55,4.25,5.94和8.49m / s的颗粒入口速度下，使用直径为1,3,5,10,15和20μm的Al 2 O 3颗粒进行实验。 Lapple（1950），Barth（1956）和Iozia和Leith（1989）使用与MIS旋风相同的操作条件下的收集效率预测模型制备了旋风效率预测图。它们通过将效率预测图和通用旋风试验数据与MIS旋风试验数据进行比较来验证旋风效率。对于小于5M的Al 2 O 3细粒径，观察到MIS旋风分离器的颗粒去除能力明显高于通用旋风分离器的预测效率及其实际实验效率的颗粒去除能力。此外，具有粒度的收集效率的变化与通用旋风器的收集效率的变化不如普通旋风，这表明MIS旋风分离器具有更稳定的去除能力。 MIC旋风器的压降测量结果显示，在入口速度为8.49m / s的入口速度下发生11 mMAq的最大压降，这显着低于通式旋风压降（50近似为150 mmaq）。

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