The utility model discloses a
biomass boiler SCR denitration preposed ash catching
system, which comprises a stainless steel embossed net, a
sound wave soot blower, a blowing
pipe, a fixing
assembly and an ash discharging device, the stainless steel embossed net is of an inverted V-shaped structure, the
sound wave soot blower is arranged above the stainless steel embossed net, the blowing
pipe is arranged below the stainless steel embossed net, and the fixing
assembly is arranged on the stainless steel embossed net. A fixing
assembly is arranged on the stainless steel
embossing net, ash discharging devices are arranged on the two sides of the lower end of the stainless steel
embossing net, and the stainless steel
embossing net is of an inverted-V-shaped structure, so that
fly ash naturally slides to ash sliding pipes on the two sides, and the problem of planar accumulation of a horizontal filter net is avoided; the
acoustic wave can loosen cohesive
fly ash, fluidizing air flow realizes physical stripping, covers the front and back surfaces of the filter screen under the bidirectional action, eliminates ash cleaning dead angles, effectively prevents the filter screen from being blocked, and is matched with a fixing assembly to enhance the overall
pressure resistance of the stainless steel embossed net and prevent the stainless steel embossed net from sinking and deforming under
high load.