降低气速、提高颗粒循环速率，可以提高床内颗粒浓度，增加颗粒停留时间。
The solids density and solids residence time in circulating fluidized bed increase with increasing solids circulation rate and reducing gas rate.
实验结果表明，提高颗粒循环速率，在任一径向位置的气固滑落速度均增加；
The experimental results show that the radial profiles of local slip velocity are non-uniform :flat in the central region and steep in the region near the wall.
实验结果揭示了气体流速和固体颗粒循环速率两个操作条件对磨损速率的影响规律。
By considering the effects of gas velocity and particle circulating rate on the surface abrasion rate, an empirical equation is proposed.
实验结果揭示了气体流速和固体颗粒循环速率两个操作条件对磨损速率的影响规律。
By considering the effects of gas velocity and particle circulating rate on the surface abrasion rate, an empirical equation is proposed.
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