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.
types of aerators that use cotton or canvas to diffuse
air, the Flo-Pad uses multiple Evassers, which are less
likely to be bound or clogged due to moisture. In addition,
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
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:
Typical effective radius of 12 inches (305 mm)
18 in (457 mm) and 60 in (1,524 mm) Flo-Pads available.
For high pressure or high temperature applications
where the boot is not acceptable, a sintered metal insert
can be provided.
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)
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:
Painted Mild steel
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)
1"-14 UNS x 2" pipe nipple
1-7/16 in (36.5 mm) diameter
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
Mass Flow Measurement Systems
The QuantiMass in-line mass flow sensor measures the flow of quantities in pneumatic conveying & free-falling processes. The sensor is based on the latest Microwave Doppler Effect technology and provides fast, in-line / on-line measuring without the use of weight scales.
The sturdy, non-intrusive design of the sensor minimizes maintenance. In addition, the compact size of the sensor makes for easy installation into existing processes. Suitable for powders, dust, pellets, and granular up to 0.75 inch (2cm).
Ultra Series-Includes controller
PRO Series-Includes transmitter
A practical application for the QuantiMass would be to monitor material flow rates to verify blending mixture ratios.
Principle of Operation:
The QuantiMass Mass Flow Measurement Sensor / Meter is designed with the latest microwave technology and is used to continuously quantify the flow of powders & solids being conveyed in metallic pipes. The QuantiMass is based on technology that has been developed and proven over several years. The measurement process of the sensor is centered on the Doppler effect. The mass flow-rate is determined by evaluating the frequency and amplitude changes during the measurement process. Particles at rest, such as deposits, do not influence the measurement. All powders, dust, pellets and granules can be measured reproducibly, up to the size of 0.75 inch (2cm). The QuantiMass sensor is suitable for continuous in-line / on-line measurements in pneumatic conveying or in free-fall pipelines.