Abstract
The three preceding chapters have been concerned primarily with pneumatic conveying by pipeline, and consideration will now be given to a variation on this technique in which the particulate bulk solid is made to flow along a channel inclined at a shallow angle. Pneumatic conveying has several advantages over other methods of transporting bulk solids, but it suffers from two drawbacks. Firstly, the power consumption is quite high; and secondly, especially when conveying in dilute phase, the solids velocity is relatively high and may cause problems as a result of particle degradation and erosive wear of the pipeline and system components. Both of these difficulties may be minimized by conveying in dense phase, that is, with a higher ratio of solids to air, so that the quantity of air used is smaller and the conveying velocity is lower.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References and bibliography
References
Dodge, J. Verfahren zum Fortschaffen von Materialien in Förderrinnen mittels Luftdruck (Procedure for transportation of materials in conveying channels using pressurised air.) DRP88402, 1895 (German patent).
Leitzel, R.E. and Morrisey, W.M. Air-float conveyors. Bulk Materials Handling, Vol. 1, ed. M.C. Hawk, Univ. Pittsburgh, Sch. Mechn. Eng., 1971, 307–325.
Bushell, E. and Maskell, R.C. Fluidised handling of alumina powder. Mech. Handling 47(3) (March 1960) 126–131.
Butler, P. No-moving parts conveyor shifts dry powdered solids. Process Engg. August 1974, 65.
Woodcock, C.R. and Mason, J.S. Aspects of the design of air-assisted gravity conveyors for the transport of bulk particulate solids. Proc. 71st Annual AIChE Conf., Florida, November 1978.
Avery, W. Meet the Airslide. Pit and Quarry 41(2) (1949) 62–67.
Nordberg, B. Air-activated gravity conveyors. Rock Products, 52, August 1949, 115–124.
Anon. Hot dust is conveyed pneumatically from precipitators to furnaces. Eng. and Mining, J., July 1954, 91.
Alston, G.L. Advances in rockdusting procedures. Mechanisation, January 1961, 46–48.
EEUA Handbook No. 15, Pneumatic Handling of Powdered Materials, Constable and Co., London, 1963.
Hudson, W.G. Why use pneumatic conveyors. Chem. Engg., April 1954, 191–194.
Stegmaier, W. Pneumatic chute for the horizontal transport of powdered bulks. Bulk Solids Technology 2(1) (Spring 1978) 47–55.
Shinohara, K. and Tanaka, T. A new device for pneumatic transport of particles. J. Chem. Engg. of Japan 5(3) (1972) 279–285.
Isler, W. An air-slide type conveyor for horizontal and upward inclined transport. Zement-Kalk-Gips 10 (1960) 482–486 (In German).
Singh, B., Callcott, R.G. and Rigby, G.R. Flow of fluidized solids and other fluids in open channels. Powder Technol. 20 (1978) 99–113.
Woodcock, C.R. and Mason, J.S. Air-float conveying of particulate bulk solids. Proc. Int. Symp. on Fine Particles Processing, Las Vegas, February 1980.
Recommended further reading
Kraus, M.N. Pneumatic Conveying of Bulk Materials. The Ronald Press Company, 1968, 241–254.
Author information
Authors and Affiliations
Rights and permissions
Copyright information
© 1987 Chapman & Hall
About this chapter
Cite this chapter
Woodcock, C.R., Mason, J.S. (1987). Air-assisted gravity conveying. In: Bulk Solids Handling. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-2635-6_15
Download citation
DOI: https://doi.org/10.1007/978-94-009-2635-6_15
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-010-7689-0
Online ISBN: 978-94-009-2635-6
eBook Packages: Springer Book Archive