Measurement of a sink velocity of an object in a gas-solid fluidized bed and development of a new fluidized bed separator for improvement of a separation speed

设计了气固流化床中物体下沉速度的测量方法，并研究了床层高度对下沉速度的影响。结果表明，为了获得稳定的速度，高度应较低。利用这一结果，新设计并制造了一种增稠型气固流化床分离器，并对分离速度进行了检验。该分离器的转速比原分离器提高了2.4-3.4倍。从该结果可以看出，该增稠型系统对于提高速度是有效的。

Measuring method of a sink velocity of an object in a gas-solid fluidized bed was newly designed, and the effect of the bed height on the velocity was investigated. It was found that the height should be lower in order to get the stable velocity. Using this result, a thickener-type gas-solid fluidized bed separator was newly designed and made, and a separation speed was examined. The speed of this separator was 2.4-3.4 times larger than that of previous one. From this result, it is suggested that this thickener-type system is effective for improvement of the speed.