RECTANGULAR AIR PAD

BULLETIN 933

The Monitor air pad bin aerator is an aeration device used to promote the flow of dry bulk powders from a storage vessel.

Principle of Operation

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.

Applications

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.

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

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

Solids Flow Detection

Microwave solids flow detectors can be used in a variety of applications including feed mills & grain processing, consumer foods (cereal, sugar, cocoa, coffee), chemicals & pesticides and more. For example, one company uses Monitor’s Model SFD-2 solids flow detector to verify the flow of feed pellets through their various transport lines which involves a process where a horizontal screw auger is conveying pellets over to a vertical gravity chute.  The chute then directs the pellets to a process down below. They have carefully placed the SFD-2 so that it detects the pellets as they fall directly across the sensor face. (See Below)

The Model SFI and SFD-2 line of solids flow detectors from Monitor Technologies, LLC provide analog or relay outputs to indicate the flow / no-flow condition of powder and bulk solids materials in chutes and pneumatic conveying lines.  Using microwave Doppler radar technology these units are non-invasive plus extremely reliable and rugged to withstand the rigors of the installation and your process extremes. From automated systems with pneumatic lines to gravity chutes, solids flow monitors can help to improve process performance. They can assist in detecting flow problems, as well as, enhance the level of automation at a facility like turning a conveyor on or off.

For more information on Solids Flow Detectors click here or contact Monitor Technologies LLC at 800-766-6486 in the USA and 630-365-9403 worldwide.

>>Click here for more information about Solids Flow Detectors from Monitor Technologies.
>>Click here for more information on Plug Chute Solutions
>>Download Product Bulletin 813