Properly accounting for how bulk solids actually will flow in a vessel or overall process can be crucial for successful operations. Learning some simple parameters can often provide a good sense of flowability.
Author: Don McGlinchey, Glasgow Caledonian University
PIPs 10th Annual Conference New Tools New Realities will be held on Tuesday, April 25, 2006 in Houston, Texas. The one-day conference will include presentations, a demonstration from key industry leaders, several workshops, and award activities to recognize contributions from PIP Member Companies participants.
Fine powders often need air injection to increase flow rates to an acceptable level. With entrained or injected air, powders flow like water, but when deaerated, the extremely low flow rate may be confused with a hang-up or arching condition.
Buildup is a potential danger in horizontal pneumatic conveying systems, particularly when velocity is reduced. This exclusive contribution from the Particulate Solids Research Institute addresses this issue.
Plant engineers who find it is difficult to get good level measurements have plenty of company. A recent poll shows that it is considered to be one of the two most vexing problems by process automation professionals.