Parametric Design of Reverse Blowing Pickup Mouth Based on Flow Simulation
Yuan Xi, Kai Cheng, Tao Xiao, Xitong Lou, Lei Cheng, Yanjuan Hu
Parametric Design of Reverse Blowing Pickup Mouth Based on Flow Simulation
Yuan Xi, Kai Cheng, Tao Xiao, Xitong Lou, Lei Cheng, Yanjuan Hu
Abstract ：Based on the analysis of structural parameters, the flow field of
reverse blowing pickup mouth was calculated with CFD. The dust
collection efficiency was validated with gas-solid phrase flow. The
results show that the diameter of outlet or the dip angle increases
respectively when $i_{D_1 B} \le 0.45$ or $\beta \le 110^{\circ}$.
Airflow velocities of four narrow slots (front, rear, left and
right) increase; With the sweeper-traveling speed increasing overall
removal efficiency and grade efficiency decrease. Especially for
grade efficiency, sweeper-traveling speed has great effects on large
size particles, while it has slight effects on small size particles
under the same operating conditions.
Key words ：
Sweeper
Reverse Blowing Pickup Mouth
CFD
Gas-solid Flow
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2015, Vol. 12 
