Flue gas treatment device and boiler system

Abstract

The invention relates to the technical field of environmental protection equipment, and discloses a flue gas treatment device and a boiler system. The flue gas treatment device comprises a temperatureregulation unit, a dust removal unit and a denitration unit; the temperature regulation unit comprises a regulation component, and a fist flue gas channel and a second flue gas channel which communicate with each other; the regulation component is used for regulating flow of flue gas without heat exchange in the first flue gas channel; the flue gas without heat exchange in the first flue gas channel is mixed with flue gas after flowing through the second flue gas channel for heat exchange, and the mixed flue gas enters the dust removal unit through a third flue gas channel; and the denitration unit communicates with the dust removal unit, and the flue gas after dust removal can enter the denitration unit. According to the flue gas treatment device, through arrangement of the temperature regulation unit, the flue gas after heat exchange is mixed with the flue gas without heat exchange, so that the temperature of the flue gas entering the dust removal unit is controlled; and it is ensured that the discharged flue gas is subjected to dust removal and denitration treatment smoothly and effectively.

Description

technical field [0001] The invention relates to the technical field of environmental protection equipment, in particular to a flue gas treatment device and a boiler system. Background technique [0002] Waste heat boiler refers to a boiler that uses the waste heat in waste gas, waste materials or waste liquid in various industrial processes and the heat generated by the combustion of combustible substances to heat water to a certain working medium. [0003] When the waste heat boiler is in use, the exhausted flue gas needs to be dedusted and denitrated before it can be discharged into the atmosphere. The existing dust removal and denitrification treatment methods for the flue gas are generally to install an electrostatic precipitator at the outlet of the flue and high temperature Denitration device, but the effect and stability of the electrostatic precipitator is poor, and the transformation of the entire flue gas discharge system and boiler system is relatively large durin...

AI Technical Summary

Problems solved by technology

[0003] When the waste heat boiler is in use, the exhausted flue gas needs to be dedusted and denitrated before it can be discharged into the atmosphere. The existing dust removal and denitrification treatment methods for the flue gas are generally to install an electrostatic precipitator at the outlet of the flue and high temperature Denitrification device, but the effect and stability of the electrostatic precipitator is poor, and the transformation of the entire flue gas discharge system and boiler system is relatively large during construction, and the investment cost is high

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