| abstract |
The utility model provides a biomass boiler burns flue gas desulfurization denitration clean system, including SNCR denitrification facility, waste heat recovery device, sack cleaner, oxidation reaction device, absorption tower and the electrostatic precipitator who communicates in proper order. The waste heat recovery device recovers the heat of the flue gas after the primary denitration, and the bag-type dust collector collects the smoke dust mixed in the flue gas. The oxidation reaction device converts NO in the flue gas into NO 2 、N 2 O 5 And HNO 3 Part of SO in the flue gas 2 Conversion to H 2 SO 4 . The absorption tower absorbs acidic substances in the flue gas and absorbs nitric oxide in the flue gas by introducing a denitration additive or a wet desulphurization system slurry, so that the deacidification and the synergetic denitration are realized. Denitration reaction is respectively carried out on the flue gas before and after cloth bag dust removal, so that the denitration efficiency is improved; still reduce the flue gas temperature to suitable scope on the one hand through waste heat recovery device to do benefit to subsequent deacidification denitration process, on the other hand retrieves heat energy, avoids the waste of the energy. |