ACOUSTIC DRYING SYSTEM WITH SOUND OUTLET CHANNEL

摘要

An acoustic wave drying system for drying a material using an acoustic resonant chamber that imparts acoustic energy to transiting air received from an airflow source. The acoustic resonant chamber includes a primary air channel having side surfaces connecting an air inlet and an air outlet, the primary air channel having a primary air channel length between the air inlet and the air outlet. A closed-end resonant chamber is formed into a first side surface of the primary air channel, the closed-end resonant chamber having a resonant chamber length. The acoustic resonant chamber also includes a sound air channel having a sound air channel inlet on a second side surface of the primary air channel opposite to the closed-end resonant chamber and a sound air channel outlet for directing an air impingement airstream containing acoustic energy onto the material.

主权项

1. An acoustic wave drying system for drying a material, comprising:
an airflow source; an acoustic resonant chamber that directs acoustic energy onto the material, including:
an air inlet for receiving air from the airflow source;an air outlet;a primary air channel having side surfaces connecting the air inlet and the air outlet, the primary air channel having a primary air channel length between the air inlet and the air outlet;a closed-end resonant chamber formed into a first side surface of the primary air channel, the closed-end resonant chamber having side surfaces and a resonant chamber length; anda sound air channel having a sound air channel inlet on a second side surface of the primary air channel opposite to the closed-end resonant chamber and a sound air channel outlet for directing an air impingement airstream containing acoustic energy onto the material, the material being spaced apart from the sound air channel outlet by a gap distance, the sound air channel having a sound air channel length between the sound air channel inlet and the sound air channel outlet; wherein a first fraction of the air received from the airflow source is directed out of the pneumatic transducer through the air outlet and a second fraction of the air received from the airflow source is directed out of the pneumatic transducer through the sound air channel outlet as the air impingement airstream.