Filter element for Bubbling fluidized bed
Bluslot customized wedge wire filter screen specially used in Bubbling fluidized bed.
Our main products: Johnson type centerpipes & Vee wire scallop.
Bubbling fluidized bed (BFB) is a polymeric fluidized gas-solid fluidized bed with low gas velocity.
In gas-solid fluidized bed, when the gas velocity exceeds the critical fluidizing gas velocity, the solid begins to fluidize, bubbles appear in the bed, and two regions obviously appear, namely, the dense phase region of particle aggregation and the dilute phase region dominated by bubbles.
This flow pattern is called poly fluidization.
When the gas velocity is low, the bubble is large, the pressure drop fluctuates greatly, and the contact between gas and solid is not good.
At this time, the bed is a bubbling fluidized bed.