On the prediction of pickup and saltation velocities in pneumatic conveying

Brazilian Journal of Chemical Engineering

L. M. Gomes¹  A. L. Amarante Mesquita² 

[1] Faculdade de Ciências Naturais;Universidade Federal do Pará;

关键词: Pickup velocity;    Saltation velocity;    Pneumatic conveying;    Gas-solid flow;   

DOI  :  10.1590/S0104-66322014000100005

来源: DOAJ

【 摘 要 】

This paper presents a comparative study of the critical pickup and saltation velocities of particles in horizontal pipelines for pneumatic conveying design. A comparative study is performed using different existing correlations in the literature for the determination of the minimum velocity of transport as a function of the particle and pipe diameter, particle density, solid mass flow rate and particle sphericity. Their limitations and difficulties in predicting those critical velocities are analyzed. For the pickup velocity, an experimental study was also carried out in order to support the analysis. Recommendations are presented on the use of such correlations.

【 授权许可】

Unknown