METHOD AND APPARATUS FOR ACOUSTIC CLEANING

摘要

The invention relates to a method and an apparatus for cleaning objects to be cleaned by means of sound wave vibrations. In the method, a sound wave burst of a preselected frequency and of preselected duration (t1) is produced. The sound wave burst is directed to an object that is cleaned, in which connection, during said duration (t1), the sound wave burst reaches the maximum loudness and is reduced to a preselected lower loudness. This sound wave burst can be repeated after a predetermined time interval (t2). The sound wave burst is produced by an apparatus which comprises a feed system for compressed gas and a vibration part. The vibration part comprises a valve and a sonic horn. Sonic cleaning devices are commonly used in the process industry, where powdery particles are processed. The object of cleaning is to break the deposits formed by powders and to remove them from the processes