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Flowmeter In-Feed Chutes
The flowmeter in-feed chute delivers the material from the bin or feeder discharge to the
flowmeter flowguide. The ideal in-feed chute pre-conditions the material flow to minimize
the effect of abrasion, velocity variation, feeder discharge trajectory variation, and
pulsing.
Feeder/Flowguide Transition
ShortFall Chute
<0.6 m (2ft)
Long Fall Chute
>0.6m (2ft)
7ML19985EQ01
•
reverse flowguide transition reverses direction of the
bin or feeder material discharge before the material
enters the flowmeter flowguide
•
reversing direction forces the material into a desirable
flow pattern rather than permitting material to be flung
from the feeder, directly into the flowguide
•
transition is especially important for high or variable
speed feeders
•
forward flowguide transition maintains the material in
baffle plate
the same direction between the bin or feeder discharge
and the flowmeter flowguide
•
transition is acceptable for a low and constant velocity
feeder
•
if a forward flowguide transition must be used for a high
or variable speed feeder application, install a baffle
plate
•
material in-feed chute where the bin or feeder
discharge to flowmeter flowguide fall is less than 0.6 m
(2 ft)
•
material velocity due to gravity minimumized
•
chute centreline and angle should coincide with that of
the flowguide, for a distance greater than or equal to
the flowguide diameter (before the flowguide inlet)
•
material in-feed where the bin or feeder discharge/
flowguide fall is more than 0.6 m (2 ft)
•
less desirable than the short fall chute because material
velocity is greater, increasing flowmeter component
abrasion
•
greater distances after chute angle changes required to
settle material into desirable flow patterns
Milltronics L-300 – INSTRUCTION MANUAL
Page 9
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