Siemens Milltronics L-300, Instruction Manual

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Page 10 Milltronics L-300 – INSTRUCTION MANUAL 7ML19985EQ01
Dogleg
Deadbox
Pulsing Feeder Discharge Damping
Knife Gate
• used to reduce the detrimental effect of high or variable
material velocity, especially when using a long fall
chute
• for abrasive materials, line the chute with an abrasion
resistant material, or use an in-feed deadbox
• installed where the chute angle changes. This will
cause the material to impact upon itself, rather than the
chute surface.
• used when the feeder discharge velocity is high,
variable, where long fall chute angles change, and if the
material is particularly abrasive
• install a temporary holding bin to receive pulsing
material discharge from a feeder. Then the material is
gravity fed from the bin to the flowmeter flowguide.
• provide manual or automatic control to ensure the
holding bin is neither emptied nor overfilled while the
feeder is in operation.
• bin could also be used for the integrator on-line
calibration, (if so equipped). Refer to the integrator
instruction manual for bin requirements.
• for drag conveyors, use a baffle plate installed at the
conveyor discharge to reduce the heavy material
pulsing associated with this type of feeder
baffle
slats
top view
conveyor
discharge
• For knife gates which supply on-off control from
supply bins or silos, open as shown in relationship to
flowguide.
bin
opening
direction
motor