Boiler flue gas integrated distributed desulfurization and denitration device

Boiler flue gas integrated distributed desulfurization and denitration device

CN
  • CN 105,032,145 A
  • Filed: 08/18/2015
  • Published: 11/11/2015
  • Est. Priority Date: 08/18/2015
  • Status: Active Application
First Claim
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1. the distributed desulfuring and denitrifying apparatus of boiler smoke integration, it is characterized in that:

  • described device comprises deduster (1), desulfurizing tower (2), oxidizing tower (3), denitrating tower (4) and slurry pool (5), the flue gas produced by boiler under the effect of air-introduced machine (5) through deduster (1), former flue gas after dedusting enters desulfurization in tower by desulfurizing tower (2) lower side, absorbent solution in slurry pool (5) delivers to the two-layer spraying layer of desulfurizing tower (2) inside setting by circulating pump (6), desulfurizing tower (2) bottom is connected with the slurry pool (5) containing absorbent, be provided with in the exit of described slurry pool (5) for the efflux pump (8) by discharging of waste liquid, demister (7) is provided with above spraying layer in desulfurizing tower (2), flue gas after demister (7) enters oxidizing tower (3) top, oxidizing tower (3) inside is provided with one deck spraying layer, oxidizing agent solution in slurry pool (5) delivers to the inner spraying layer of oxidizing tower (3) by circulating pump (6), oxidizing tower (3) bottom is connected with the slurry pool (5) containing oxidizing agent solution, the flue (12) be connected with denitrating tower (4) bottom is offered in the side, below of oxidizing tower (3), wire mesh demister (13) is provided with in flue (12), be provided with in denitrating tower (4), in, lower three layers of spraying layer, on, lower two-layer spraying layer is connected with the slurry pool (5) containing absorbent solution by circulating pump (6), middle spraying layer is by measuring pump (10) and H 2o 2naOH solution tank NaOH (14) is connected, and the flue gas after out of stock is discharged by chimney after the wire mesh demister (13) above spraying layer.

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