Sonic cleaning is based on the principle of kinetic activation of dust particles using sound waves at frequencies that are normally between 125 & 400 Hz.
The sound waves are generated by a special bell shaped horn powered by air and controlled electrically by a solenoid valve. The kinetic energy imparted to the dust particles cause them to vibrate, break their bonds with other particles and the surface to which they cling. These “Fluidized” particles are then dispersed by gravity or gas stream pressure.
Dust build – ups occur when smaller dust particles join together i.e. greater & large mass sound energy generated by the Sonic Power System breaks the bond of these particles which allows them to fluidize and allow them to be maintained at a carrying velocity in duct work or to fall by gravity from bags and precipitator plates.
The sound waves can also be used to fluidize dust to facilitate removal from hoppers bins etc. Wherever there is problem with dust plugging, dust build up or dust flow. The system may provide the answer to the problem.
The method of Sonic Cleaning is in fact more useful to “Keep Clean” than to clean a dust coated surface. If the layer has already been allowed to grow too much the physical properties of the deposit can be too severe, the outer surface hardened or sintered and may cause strong adhesion to the tube. But if we permit the cleaning work periodically with short intervals, the results will be surprisingly good.
Various designs to suit your application.
High Energy low frequency Sonic Power Systems are engineered and designed for corrosive and high temp. environments. Their Fundamental Frequencies at 147 decibels (db) are in the optimum range to fluidizing soot and dust clinging to tubes and surfaces.
The Sonic Horn is powered by compressed air and is controlled electrically by means of a solenoid valve. A high level of operational reliability is ensured by the fact that the diaphragm is the only moving part in the unit.
A complete installation for Sonic cleaning consists of a number of sonic horns and an automatic control unit, which is programmed for both the duration of the sound (i.e. 15 to 30 seconds) and the length of the interval between Isolations. Interval time must be determined by experience.
In many cases the added sound method means the benefit of prolonged interval between the mechanical cleaning procedures thus giving an essentially improved economy and availability.
