A fluidized bed system was demonstrated and the fluidization performances of silicon carbide in the fluidized bed system were experimentally studied as to facilitate the further application of microwave-assisted fluidized bed. The results show that the smaller silicon carbide particles (0.25–1 mm) have better fluidization performances than larger ones (1–1.5, 1.5–2, 2–2.5 and 2.5–3 mm) due to the fact that the smaller particles are nearly spherical whereas the larger particles are irregular in shape (long and branched), and larger particles tend to form channels in fluidization. Fluidization velocity is too high, large bubbles will be generated to affect the uniformity of fluidized particles. The loading of fluidized particles should match that of the fluidized bed, and too low loading amount wastes the space of the fluidized bed, while too high loading amount will also produce large bubbles. For the fluidized bed system developed in this study, the suggested fluidization parameters were: (a) silicon carbide particle size of 0.25–1 mm, (b) fluidization velocity of 0.47–-0.71 m/s, and (c) silicon carbide particle loading of 40–50 g.

演示了流化床系统，并通过实验研究了碳化硅在流化床系统中的流化性能，以利于微波辅助流化床的进一步应用。结果表明，较小的碳化硅颗粒（0.25–1 mm）比较大的碳化硅颗粒（1–1.5、1.5–2、2–2.5和2.5–3 mm）具有更好的流化性能，这是因为较小的颗粒几乎是球形，而较大的颗粒形状不规则（长而分支），较大的颗粒倾向于在流化过程中形成通道。流化速度太高，会产生大气泡，影响流化颗粒的均匀性。流化颗粒的负载应与流化床的负载相匹配，并且负载量太低会浪费流化床的空间，而过高的加载量也会产生大气泡。对于本研究开发的流化床系统，建议的流化参数为：（a）碳化硅粒径为0.25–1 mm，（b）流化速度为0.47--0.71 m / s，以及（c）碳化硅颗粒负载40–50克。