Kenics static mixer in liquid-solid horizontal circulating fluidized bed

To address the uneven distribution of particles in the liquid-solid circulating fluidized bed,Kenics static mixer was put into a horizontal glass tube with 29 mm in internal diameter and 4 m in length.The CCD image measurement and data processing system was used to study the impact of structure,number,installation location of static mixer on the particle distribution in liquid-solid flow,and the U-tube differential manometer was used to measure the pressure drop of static mixer of different conditions.The experimental results show that Kenics static mixer can improve the particle distribution obviously in the pipe;the pressure drop of one single Kenics static mixer with twist ratio Y=3.5 is the smallest;the influence length of particle distribution is the maximum when the installation distance of two Kenics static mixers with twist ratio Y=3.5 is 40 mm.