THE CHARACTERISTICS OF WAVE-PROPAGATION IN A VIBRATING FLUIDIZED-BED

Based on experiments, this paper describes that the vibration energy i mported to a packed bed is through the collision between the vibration plate and the bed, and the vibration energy imported to a fluidized b ed is through continuous wave propagation. A new type sensor was used to measure the wave signals in VFB. The wave characteristics are affec ted by bed properties. By analyzing the wave frequency spectrum, the b ubble's behavior in the bed can be followed.