Mainly three groups exist in the fluidized bed: macro-agglomerates

micro-agglomerates

and free-particles. Agglomerates were generated by using TEB nozzles. Macro-agglomerates were distributed at the bottom of the fluidized bed

while micro-agglomerates and free-particles were uniformly distributed in the fluidized bed. The conductance signals measured by the self-developed multi-channel conductance electrical circuit experimental device showed linear relationship with moisture content inside the fluidized bed. Conductance signal was recovered under the influence of agglomerates breakup by continuous fluidization

so that measurement of moisture distribution could be implemented. Measurement of moisture distribution with TEB atomization nozzle gas liquid ratio in the range of 0-4% indicated that with the increase of gas liquid ratio

the moisture content in the micro-agglomerates and free-particles increased

while the moisture content in the macro-agglomerates decreased. But even when gas liquid ratio increased to 4%

most of the moisture content still existed in the macro-agglomerates.