The Air Pad operates by continuously introducing air
into the body of the dry powder. When a powder is first conveyed
into a storage vessel it is actually a highly aerated mixture
of air and particulate. In this state the mixture flows quite
readily. However, as the powder settles the solid particulate
and air separate resulting in a decrease in volume and an
increase in bulk density. In this deaerated state powders
can behave more like a single large solid structure rather
than a fluid-like mixture. By replacing the naturally lost
air, the air to particulate mixture ratio is held thus maintaining
the fluid like characteristic of the aerated powder.
For best results in promoting the flow of dry bulk powders,
multiple rows of air pad bin aerators should be used. The
number of rows and quantity of air pads in each row will
differ by application. Monitor application engineers are
ready to provide you with the best recommendation for your
specific material flow problem.
Generally, four rows of air
pad bin aerators on 12 inch (305mm) or 15 inch (381 mm)
centers is recommended. While the effective radius of each
air pad
is approximately 10 inches (254 mm), the air pads should
be spaced so that the entire troublesome area is within
the sphere of influence of the air pads.
Typical Applications include,
but are not limited to:
Cement
Bentonite
Gypsum
Soda
Ash
Lime
Flour
Carbon
Black
Fly
Ash
Resins
Features
Effective
radius of 10 inches (254 mm) Adapts to almost any bin configuration Low cost Easy Installation Minimal maintenance
Accessories
An external mounting kit is available. This
kit can completely eliminate the need to enter the bin to
install or service air pad bin aerators. Using a 2-5/8 X
6-5/8 inch (66.5 x 162 mm) cutout hole in the bin wall,
the mounting kit can be completely installed and serviced
from
outside the bin. Our air pad and external mounting kit can
easily install in existing cutouts of other brands.
The external
mounting kit includes gaskets, clamp bracket, rectangular
mounting bracket and necessary hardware for mounting with
your air pad bin aerator and its mounting hardware. An
external mounting kit for high temperature applications is
also available.
Specifications
AIR
SUPPLY/CONSUMPTION:
Air
Supply:
Clean, dry air
3 to 5 psi
Air
Consumption:
1 psi - 4.2 scfm
(0.07 bar - 1.2 m3/min)
2 psi - 5.7 scfm (0.14 bar - 1.6 m3/min)
3 psi - 6.5 scfm (0.21 bar - 1.8 m3/min)
4 psi - 7.1 scfm (0.28 bar - 2.0 m3/min)
5 psi - 7.6 scfm (0.35 bar - 2.2 m3/min)
MATERIALS
OF CONSTRUCTION
Body:
Zinc-plated steel
or 304 stainless steel
Diffuser:
Cotton (up to
180°F/82°C) Fiberglass (up to 650°F/343°C)
Diffuser
Screen:
16 mesh zinc-plated
steel or 304 SS
Air
Inlet Nipple/Nut:
1/8" NPT
nickel-plated brass
Spacer
Washers:
Nickel-plated
steel
Washer/Gasket:
Silicone (up
to 650°F/343°C)
EXTERNAL
MOUNTING KIT:
Gaskets:
Neoprene (up
to 180°F/82°C)
High Temp Gasket:
Up to 300°F/149°C
Brackets/Lockwasher:
Zinc-plated steel
Warranty
Monitor Technologies warrants each air 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.
933A.7.1106
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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