Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 2 of 2
Full-Text Articles in Engineering
Comparison Of Rotary Valve And Blowtank Feed Rate Capacities, David B. Hastie, Peter W. Wypych, Ian Frew, Christopher David Cook
Comparison Of Rotary Valve And Blowtank Feed Rate Capacities, David B. Hastie, Peter W. Wypych, Ian Frew, Christopher David Cook
Faculty of Engineering - Papers (Archive)
Rotary valves and blowtanks are widely used in industry for the pneumatic conveying of products, each having their pros and cons depending on the required application. This paper aims to show the differing results that can be obtained when conveying a product through a common pipeline using either a drop-through rotary valve or a bottom discharge blowtank. The rotary valve system has a number of issues, the main one being air leakage effects, whereas the blowtank system does not as it is an enclosed unit. The results of these experiments showed dramatic differences in product tonnage.
A Novel Approach To Rotary Valve Venting, David M. Cook, David B. Hastie, Tom Hicks, Peter W. Wypych
A Novel Approach To Rotary Valve Venting, David M. Cook, David B. Hastie, Tom Hicks, Peter W. Wypych
Faculty of Engineering - Papers (Archive)
Venting of pocket carryover and leakage air from rotary valves is a perennial problem. Unless this air is controlled its only escape route is up through the drop tube leading into the feeder. This causes a counter flow to the product falling into the rotary valve restricting the throughput of the system. This paper discusses the design and implementation of an in-line cyclone to obviate the disadvantages of the traditional methods employed for rotary valve venting.