Single-boiler-barrel transversely-arranging type reciprocating grate spraying and denitration corner-tube boiler

Abstract

The invention relates to a single-boiler-barrel transversely-arranging type reciprocating grate spraying and denitration corner-tube boiler. The single-boiler-barrel transversely-arranging type reciprocating grate spraying and denitration corner-tube boiler comprises a boiler body and a reciprocating grate part, wherein the reciprocating grate part is arranged at the bottom of the boiler body; the single-boiler-barrel transversely-arranging type reciprocating grate spraying and denitration corner-tube boiler is characterized in that the boiler body 1 is provided with a broiler water circulating mechanism and is composed of a channel rear-wall water cooling wall 30, and an upper collection box 18 and a lower collection box 33 of a deposition chamber; the boiler body 1 is provided with a spraying and denitration cyclone separation sedimentation device which is composed of a denitration and spraying pipe 28, a denitration nozzle 24, a denitration agent supplying device 35, an upper sedimentation separation chamber 21 and a lower sedimentation separation chamber 29. The single-boiler-barrel transversely-arranging type reciprocating grate spraying and denitration corner-tube boiler has the characteristics that the emission of nitric oxide is reduced, the air pollution is reduced, the heat efficiency is improved, the energy is saved and the boiler is environmentally friendly and safe and the like.

Description

technical field [0001] The invention relates to the technical field of boilers, in particular to a single-drum horizontal reciprocating grate spray denitrification corner tube boiler that can meet the discharge requirements of the national boiler air pollutant discharge standard and solve the problem of high nitrogen oxide discharge concentration and environmental pollution. Background technique [0002] As we all know, the current corner tube boiler structure is that four unheated downcomers are arranged around the boiler body as support. The flue gas at the outlet of the furnace directly washes the serpentine tube of the flag-type heating surface, which is severely worn. There is no settling chamber, the dust cannot settle, the heating surface is small, the service life is low, the maintenance rate is high, and the use cost is increased. With the increasingly stringent national environmental protection policies, the known corner tube boilers cannot meet the national emis...

AI Technical Summary

Problems solved by technology

The flue gas at the outlet of the furnace directly washes the serpentine tube of the flag-type heating surface, which is severely worn. There is no settling chamber, the dust cannot settle, the heating surface is small, the service life is low, the maintenance rate is high, and the use cost is increased.

With the increasingly stringent national environmental protection policies, the known corner tube boilers cannot meet the national emission requirements for boiler air pollutant emission standards, and the concentration of nitrogen oxide emissions is high, polluting the environment

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