A single drum horizontal chain grate spray denitrification corner tube boiler

Abstract

The invention relates to a single-drum horizontal-mounted chain grate spray denitrification corner tube boiler, which includes a boiler body and a chain grate part, wherein the chain grate part is arranged at the bottom of the boiler body part, and is characterized in that: Boiler body (1) is equipped with a boiler water circulation mechanism, which is composed of channel rear wall water wall (30) and settling chamber upper header (18) and lower header (33). Spray denitrification cyclone is set on boiler body 1 Separation and settling device, which is composed of denitrification spray pipe (28), denitrification nozzle (24), denitrification agent supplier (35), upper sedimentation separation chamber (21), lower sedimentation separation chamber (29), has the ability to solve the problem of small heating area , The flue gas at the furnace outlet does not directly flush the serpentine tube of the flag-type heating surface, which reduces wear and tear, prolongs the service life of the boiler, reduces the number of maintenance and reduces the emission of nitrogen oxides, reduces air pollution, improves thermal efficiency, energy saving, environmental protection and safety.

Description

technical field [0001] The invention relates to the technical field of boilers, in particular to a single-drum horizontal-mounted chain grate spray denitrification angular 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 emiss...

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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