How to prevent dangerous dust loads in your large ducts
Dust collection ducts in most dry bulk materials processing plants are typically 6 feet in diameter or larger. Predicting the dust load in these large ducts is difficult. But if you want to keep each duct in good working order, you need to monitor the dust load in it and clean the dust out at regular intervals. After discussing large duct and dust load basics, this article explores the problem of predicting dust loads in large ducts and explains how to design, inspect, and maintain the ducts.
A large dust collection duct for removing dust-laden air in a dry bulk materials processing plant can be as costly as a process machine. Yet processors seldom pay as much attention to large duct maintenance as they do to process equipment maintenance.