The Monitor Flo-Pad bin aerator is a device
used to promote the flow of dry bulk powders from a storage
vessel without the noise and damaging vibration caused by
pneumatic or electric vibrators. The Flo-Pad uses multiple
Evassers mounted on a single air plenum chamber inside the
vessel and is capable of aerating many types of bulk powders
and granular solids in bins, hoppers and silos including
some of the most difficult applications.
While the Flo-Pad
is able to discharge air at up to 80 psi (5.5 bar) to help
dislodge and move settled materials, the single Flo-Pad
is used to maintain flowability of material with a constant
2 to 5 psi (0.14 to 0.35 bar) supply of air.
Unlike other
types of aerators that use cotton or canvas to diffuse
the
air, the Flo-Pad uses multiple Evassers, which are less
likely to be bound or clogged due to moisture. In addition,
the
Flo-Pad is not as prone to back-flow of material because
the standard neoprene boot on the Evassers expands to
let the pressurized air out and contracts when the air is
shut
off blocking the air outlets from material backflow.
The Flo-Pad uses multiple Evasser bin aerators mounted
on a single air plenum chamber for optimal efficiency in
even some of the most difficult applications to continuously
introduce air into a mass of stored powder. When first conveyed
into a storage vessel, the powder is actually a highly aerated
mixture of air and particulate. In this state, the mixture
flows quite easily. As the material settles, the particulate
and air separate. The material decreases in volume and increases
in density (it packs), and in turn it begins to behave like
one solid mass rather than a fluid mixture of particles.
The Evassers on the Flo-Pad replace the naturally lost air
and increase and maintain the air-to-particulate mixture
ratio, thus allowing the material to flow.
The most effective aeration of dry bulk materials is
typically achieved by the use of multiple rows of Flo-Pads,
one row located in each quadrant of the slopping bin bottom.
The Flo-Pad can be used to aerate dry powders and granular
materials. The spacing between rows and individual Flo-Pads
can vary from application to application. In all cases, please
consult with the Monitor application engineers for a recommendation
that meets your specific material flow problem.
Typical Applications include,
but are not limited to:
Cement
Bentonite
Gypsum
Soda
Ash
Lime
Flour
Carbon
Black
Fly
Ash
Resins
Features
Typical effective radius of 12 inches (305 mm)
18 in (457 mm) and 60 in (1,524 mm) Flo-Pads available.
Accessories
For high pressure or high temperature applications
where the boot is not acceptable, a sintered metal insert
can be provided.
Specifications
Air Supply/Consumption:
Air Supply :
Continuous clean, dry air 3 to
5 psid (0.2 to 0.35 bar) (the difference between
the air feed pressure and the internal vessel pressure)
Air Consumption:
Dependent upon quantity of Flo-Pads
and air supply manifold size (Refer to bulletin
964A for further information or consult the factory)
Materials of Construction:
Evasser:
Cast iron
Plenum Chamber:
Painted Mild steel
Boot (standard):
Black Neoprene (up to 175°F/80°C)
Sintered Metal Insert: (optional)
Bronze 90 micron (up to 900°F/480°C)
40 micron filter for extra fine materials (up to 900°F/480°C)
SS 90 micron (up to 900°F/480°C)
Plenum Chamber:
Connection:
1"-14 UNS x 2" pipe nipple
Mounting Hole:
1-7/16 in (36.5 mm) diameter
Warranty
Monitor Technologies warrants each Flo-Pad
it manufactures to be free from defects in material and workmanship
under normal use and service within two (2) years from the
date of purchase. The purchaser must notify Monitor of any
defects within the warranty period, return the product intact,
and prepay transportation charges. The obligation of Monitor
Technologies LLC under this warranty is limited to repair
or replacement at its factory. This warranty does not apply
to any product which is repaired or altered outside of Monitor
Technologies' factory, or which has been subject to misuse,
negligence, accident, incorrect wiring by others, or improper
installation.
963A.3.0407
Spotlight: True Fail Safe Level Switch
SafePoint®
"Truly" Fail-Safe Level Switch
The
SafePoint® rotary paddle level switch with a self-validating design
detects material presence plus continuously monitors its own ability
to function. The analysis includes sensor health and system power
failure, which makes the SafePoint truly fail-safe.
The SafePoint incorporates patented use of Hall-Effect technology,
dual outputs to indicate both material presence and unit health,
and microcontroller technology to continuously protect bulk solids
processing and storage from the consequences of unknown sensor
failure by providing immediate indication of a sensor failure
and confirmation of proper operation.
Other practical features of the SafePoint include rugged construction,
motor shut-off when paddle becomes impeded to maximize motor life, twist On/Off
cover for bolt free removal, and local status indicating light (except hazardous
location models)
A practical application for the SafePoint would be to use this "true"
fail-safe product if undetected sensor failure could result in a
catastrophic process problem.
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