This paper deals with the optimum conditions in plug-type pneumatic conveying of granular materials through a pipe. First, taking a force balance in the pipe, a theoretical equation for air pressure required to convey a plug is developed. Second, the values calculated by the equation are confirmed to be in good agreement with the data obtained in experiments performed with horizontal and vertical pipes of diameters 66, 78 and 99 mm using calcium carbonate powder as granular materials. In conclusion, the optimum operating conditions of plug-type pneumatic conveying of granular materials are briefly discussed.
ASJC Scopus subject areas
- Chemical Engineering(all)