ULTRASONIC PURIFICATION PLANT Russian patent published in 2002 - IPC

FIELD: purification process effected by means of ultrasonic oscillations; cleaning dirty surface in various industries. SUBSTANCE: proposed plant includes technological bath, ultrasonic piezoelectric transducers and parasitic flexural oscillation damper. Planes of transducer and damper radiators are rigidly connected with plane of outer surface of bath bottom. Parasitic flexural oscillation damper is made in form of separate heavy steel rings concentrically embracing the radiators of respective transducers; they are located at distance equal to nλ/4, where λ is length of flexural wave in material of bath bottom and n=1,2,3,5. EFFECT: simplified construction; enhanced smoothness of distribution of acoustic field inside bath due to enhanced efficiency of isolation of ultrasonic transducers. 2 dwg