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ACOUSTIC WAVE DRYING SYSTEM

  • US 20140202021A1
  • Filed: 01/18/2013
  • Published: 07/24/2014
  • Est. Priority Date: 01/18/2013
  • Status: Active Grant
First Claim
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1. An acoustic wave drying system for drying a material, comprising:

  • an airflow source;

    an acoustic resonant chamber that imparts acoustic energy to air flowing through the acoustic resonant chamber including;

    an air inlet for receiving air from the airflow source;

    an air outlet for directing air onto the material which is spaced apart from the outlet by a gap distance;

    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; and

    one or more secondary closed-end resonant chambers formed into a side surface of the primary air channel, the secondary closed-end resonant chambers having side surfaces and secondary resonant chamber lengths;

    wherein an acoustic pressure provided at a surface of the material is at least 125 dB-SPL, and wherein the air directed onto the material impinges on the surface of the material with an air velocity of no more than 40 m/s.

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