| Belt-Drive Fiber
Fan |
| --------------------------------------------------------------------------------- |
 Challenge: |
 |
| To use a fan to convey
fibers, both efficiently AND without damaging fibers.
Fibers coming into contact with the wheel (impeller)
can be damaged. |
|
| Solution: |
|
| Design a fan with
a large open, housing, a smooth, tag-free wheel,
and negative pressure fins behind the wheel. By doing
so, we: |
|
| create
a buffer zone between the wheel and the housing |
| minimize
damage when fibers do contact the wheel |
| eliminate
fiber packing behind the wheel. |
|
| With these features,
the fibers are conveyed with minimum damage by the
fan. |
|
| Engineering
and Experience |
|
| RL Kunz Engineering:
Fiber conveying capacity is about 30% of airflow
by weight. |
|
| Example: |
|
| A fan handling 2500
cubic feet per minute (cfm), 188 pounds of air, can
transport about 56 pounds of fiber per minute, or
3360 pounds per hour. |
|
| Note: |
|
| The actual pounds per hour depends on the fiber feed
rate of the equipment feeding the fan. At a typical
rate of 75%, the pounds of fiber per hour would be
2500. |
|
| RL
Kunz Experience Advantage: |
|
| fiber
feed rate |
staple
length |
| fiber
density |
denier |
|
| RL Kunz’s
experience allows us to adjust the fan’s speed
to allow for varying conditions such as: |
|
|
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