Super Air Knife Eliminates Alumina Dust Carryover on Conveyor

EXAIR Super Air Knives are quite often used on belt-style conveyors to blow off and clean the conveyor of any residual product that may try to stick to the belt and fall off at points along the travel where the product can pile up and create a real mess.

Our most recent version of this application was for a conveyor moving alumina dust in a foundry. Our Australian distributor, Compressed Air Australia, worked with the end user to apply this solution.

Mounting an Aluminum Super Air Knife across the width of the conveyor on the underside, just down-stream of the head pulley, the customer was able to completely eliminate the dust accumulation under the belt.

Before Super Air Knife Installation:                          After Super Air Knife Installation:

Alumina dust 1Alumina dust 2

The Super Air Knife with Plumbing Kit, installed below the conveyor belt:

Alumina dust 3

By installing the Super Air Knife, the customer was able to keep production running on the conveyor. Before, they had to stop periodically so the operators could clean up the dust. Dealing with the dust is a safety hazard for the operators for a variety of reasons including inhalation and personal safety risk working around moving parts. The solution allowed production to remain up and moving for longer periods. It also allowed workers to be safer in the environment and also concentrate their manpower and time on other activities as they no longer had to worry about cleaning up this material.

The compact nature of the Super Air Knife with the Plumbing Kit allowed the customer to tuck the unit right up where it was needed most. Notice how the Super Air Knife is blowing almost parallel to the belt. This is key in any Air Knife installation to allow for the longest contact time possible between the airflow and the target. This counter-flow arrangement is how the best performance is achieved with the Super Air Knife.

Neal Raker, Application Engineer
nealraker@exair.com

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