The invention discloses a low-temperature
plasma synergistic SCR
waste gas treatment device which comprises a
plasma module consisting of a low-temperature
plasma generating tube, a spiral high-
voltage electrode, a spiral guide vane and insulating
ceramic, and an SCR reaction module consisting of a
urea injection tube, a mixer, a guide device, an SCR reaction shell and a catalyst. According to the scheme of the low-temperature plasma synergistic SCR
waste gas treatment device, when
waste gas enters the low-temperature plasma generation
pipe from the gas inlet
pipe, passes through the spiral guide vanes and uniformly flows in the
discharge area, the spiral high-
voltage electrode and the spiral guide vanes improve the circulation and uniformity of gas, and the
discharge reaction space is effectively utilized, and the reaction waste gas and the sprayed
urea are fully mixed through the mixer and the fluid director and quickly react in the SCR reactor. The low-temperature
plasma technology and the SCR technology are organically combined, PM and
NOX are integrally treated, and the device has the advantages of being simple, capable of saving energy, high in purification efficiency and the like.