Combustion device with low nitrogen oxide emission

Abstract

The invention discloses a combustion device with low nitrogen oxide emission. The combustion device with the low nitrogen oxide emission comprises a furnace body and a smoke exhaust pipe connected with the furnace body; a feeding port is formed in the side wall of the furnace body; an air inlet pipe is arranged on the side wall of the furnace body; a reduction chamber with hollow interior is arranged outside the furnace body; the end, far away from the furnace body, of the smoke exhaust pipe communicates with the reduction chamber; a one-way valve is arranged on the smoke exhaust pipe; a gas inlet pipe used for filling ammonia gas into the reduction chamber is connected to the side wall of the reduction chamber; and a gas exhaust pipe is connected to the side, far away from the smoke exhaust pipe, of the reduction chamber. The combustion device with the low nitrogen oxide emission has the effect of reducing the possibility that the denitrification effect becomes poor and the combustion efficiency is reduced due to the fact that water is left in the furnace body in the denitrification process.

Description

Technical field [0001] The present invention relates to the technical field of low nitrogen oxide treatment apparatus, and more particularly to a combustion device for low nitrogen oxide discharge. Background technique [0002] At present, my country is a large country of fire power generation, approximately 1.1 billion tons per year, and the emissions of nitrogen oxides (NOx below NOx) are nearly 6 million tons, and the unit coal consumption is 65 grams more than foreign average, and various industrial boilers are coal. 400 million tons, NOx emissions are nearly 2 million tons, while nitrogen oxides can cause pollution such as acid rain, photochemical fog, so control NOX emissions is a very pressing task of my country's governance environmental pollution. [0003] The existing bulletin is disclosed in Chinese patents for CN209415438U, which is disclosed, which is made to reduce nitrogen oxide emissions, including: including a furnace, and a beam type furnace row; the beam furnac...

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Problems solved by technology

[0004] During the combustion process, the ammonia solution is injected to reduce the nitrogen oxides, thereby reducing the emission of NOx, but there is still water entering the furnace Too high, poor denitrification effect, and reduced boiler efficiency

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