Martin Engineering launch Sonic Horn
New flow aid device improves operating efficiency and consistency of dry particulate products
MARTIN Engineering, one of the world leaders in bulk material flow technology, have introduced a new addition to their family of flow aid products. The Martin sonic horn is an acoustic cleaner that is said to reduce system downtime, maintenance, and operating costs, while improving performance and prolonging equipment life.
In addition to low cost of ownership, Martin Engineering say acoustic cleaning helps avoid structural fatigue or damage, prevents dry particulate build-up and increases system efficiency. It is especially effective around pipes and behind obstacles, where sonic energy de-bonds particulates with a 360° sweep, thereby cleaning inaccessible areas.
Sonic horns work by producing a low-frequency, high-pressure sound wave, which is created when compressed air flexes a titanium diaphragm in the sound generator. This sound wave is then magnified as it is emitted through the cleaner’s bell. The sound pressure causes dry particulate deposits to resonate and become fluidized, thus allowing them to be removed by constant gas flow or gravity.
‘Acoustic cleaning technology has been providing cost-saving solutions for decades,’ commented Martin Engineering’s multiport specialist, Jeff Shelton. ‘It’s a proven technology that can improve throughput and reduce blockages.’
Two models of the Martin sonic horn are available: the D-75 unit has a fundamental frequency of 75Hz, measures 2,339mm in length and weighs 86.2kg. This model has a wavelength of 4.5m. The D-230 sonic horn (230Hz fundamental frequency) has a wavelength of 1.5m, measures 698.5mm in length and weighs 24.6kg.
Used in combination with Martin Engineering’s Big Blaster air-cannon technology, the sonic horns are said to provide a total cleaning and flow solution, and are well suited for use in boilers, heat exchangers, economizers, bag houses, selective catalytic reduction (SCR) processes, ID fans, electrostatic precipitators (ESP), silos, hoppers, cyclones, and air pre-heaters.
