Acoustic cleaner is used wherever there is a build up of dry materials and particulates which need to be cleaned regularly to ensure maximum efficiency and minimize maintenance and down time. It works by generating powerful sound waves which will vibrate the dry materials differently to each other and the surrounding structures. This will create a series of very rapid and powerful sound induced pressure fluctuations which are then transmitted into the solid particles of ash, dust, granules or powder. It causes them to move at differing speeds and debond from adjoining particles and the surface that they are adhering to.

Acoustic cleaning systems consist of one or two acoustic cleaners, a controller and air supply unit. It is a quarter wave resonator tube designed to produce sound energy at predetermined frequencies, typical in the 10 - 50 Hz range. Each acoustic cleaner is custom build to operate at the desired frequency. The sound is produced by the principle of quarter wave resonance, which is an efficient method to produce sound concentrated at a single frequency. Low-pressure air is fed to the sound generator by an air supply unit. The unit is skid mounted and contains a positive displacement type blower, electric motor, filter, and silencers.