329Engineering Solutions for Dust Release Containment and Air Dedusting
© 2010 Taylor & Francis Group, LLC
ATU-93 aspiration process unit. Conveyor #28 handled 310 t/hr. Wind speed aver-
aged 5.96 m/s. In all three cases, air samples were taken to determine dust content
at a point 40 m away from the location where the pellets fell into the stockpile, along
the centerline of the plume. Tests indicated a 3.803 g/m
3
dust content in the plume in
the free-jet storage unloading mode.
Dumping pellets through the enclosure with the aspiration turned off brought the
airborne dust content down to 1.351 g/m
3
. When the aspiration was turned on, dust
content decreased further to 0.547 g/m
3
.
The enclosure test specimen was designed with the following parameters: ...