PREDICTION AND STABILITY ANALYSIS OF CHOKING IN VERTICAL PNEUMATIC CONVEYING

[摘要] References(10)Cited-By(7)The choking velocity, at which the substantial transport of solids becomes impossible in a pneumatic conveying system, is predicted on the basis of the dynamic stability analysis of the whole conveying system including characteristics of blower and pipelines as well as gas-solid suspension. The system is expressed by a lumped parameter approximation. The results are in good agreement with experimental ones obtained by using a 20 mm-I.D., 5.6 m-long vertical glass tube with three sizes of glass beads, within an error of 10%.