Low-nitrogen burner for industrial furnace

Abstract

The invention relates to the field of combustion devices of industrial furnaces, in particular to a low-nitrogen burner for an industrial furnace, which comprises a burner shell and a combustion tube, a gas tube is arranged in the burner shell, the combustion tube is arranged at the bottom of the burner shell, the tail end of the gas tube is inserted into the combustion tube, an ignition coil is arranged on the gas tube, and the tail end of the ignition coil is inserted into the combustion tube. A gas spraying head is arranged at the bottom of the gas pipe, and the section shape of the gas spraying head is matched with the section shape of the inner wall of the burner shell. During use, the area of the cross section of an inner cavity of the combustion cavity pipe is larger than that of the cross section of an inner cavity of the combustion pipe, and a certain angle is formed at the joint of the combustion cavity pipe and the combustion pipe, so that mixed gas is released into the combustion cavity pipe through the combustion pipe, combustion of the mixed gas is more sufficient, and the combustion efficiency is improved. The burner further has the advantages of being simple in structure, convenient to operate and easy to implement.

Description

technical field [0001] The invention relates to the field of industrial furnace combustion devices, in particular to a low nitrogen burner for industrial furnaces. Background technique [0002] The industrial furnace combustion device refers to the device used to realize the fuel combustion process in the industrial furnace with fuel as the heat source. Usually called a burner, its main function is to send gas and air to the furnace for combustion in a certain proportion and certain mixing conditions (some are also burned inside the burner), and to meet the requirements of the furnace heating process for the flame. [0003] A device used to realize the fuel combustion process in an industrial furnace with fuel as a heat source. According to the heating requirements of the flame furnace, various combustion devices should ensure that: the complete combustion of the fuel is guaranteed under the specified heat load conditions; the combustion process is stable and can continuous...

AI Technical Summary

Problems solved by technology

Although the above-mentioned burners can reduce the nitrogen content of the exhaust gas to a certain extent, the swirling wind structure not only ensures the combustion stability and flame rigidity, but also increases the local combustion intensity to a certain extent, which limits the further reduction of the nitrogen content of the exhaust gas. level, putting pressure on environmental protection

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