Waste gas treatment device has at least two stages of exchanging sections, exchanging air chamber, through hole communicating to atmosphere, and feedback tube communicating to input port of first stage exchanging section

摘要

The device has at least two stages of exchanging sections (2) provided from input port (1), each section having jet hole(s) (21) and its corresponding diffusion hole (22); exchanging air chamber (23) at the connecting point between the jet hole and diffusion hole; through hole (24) communicating to atmosphere provided in air chamber of first stage exchanging section; mixing air chamber (3) between exchanging sections; and feedback tube (4) communicating to input port of first stage exchanging section provided in the mixing air chamber from second stage to the last stage exchanging section.