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AIR BLASTER OR AIR CANNON

Principle workings of an air blaster

An air blaster or air cannon is a de-clogging device composed of 2 main elements a pressure vessel (storing air pressure) and a triggering mechanism which releases compressed air at a high speed.

The air blaster are strategically positioned to blast the high speed compressed air in the right direction to prevent or dislodge material build up due to the various shapes formed within the storage. They are permanently installed on kiln inlets, cyclones, coolers, riser ducts, feeding cutes, silos, and hoppers.

The compressed air at a pressure of 90-100 psi is fed to the storage vessel after a duration the triggering mechanism is activated, the instantaneous release of compressed air out through the discharge opening 100/150 mm into the stored materials at a faster rate than the material can absorb thus dislodges material allowing the process to continue with disruptions.

The achieved blast, called the impact force also evacuates material sticking to the walls (rat holing) as well as breaking potential bridging thanks to the stock wave obtained. The actuation of air blaster can be triggered manually or automatically set with a electronic sequential timer.

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