Industrial furnace with high-temperature low-oxygen air burner

A technology of air combustion, high temperature and low oxygen, applied in the direction of combustion method, combustion type, combustion equipment, etc., can solve the problems of large smoke loss, low energy utilization rate, unfavorable environmental protection requirements, etc., and achieve small smoke loss and energy utilization. high rate effect

Inactive Publication Date: 2002-02-27
TSINGHUA UNIV
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the existing industrial furnaces or various fuel oil and gas heating furnaces designed and manufactured by my country's metallurgical system did not use low-oxygen combustion technology, but directly contacted high-temperature and high-oxygen-concentrated air with fuel to ignite and burn , resulting in NO x The emission is high, the loss of smoke exhaust is large, and the energy utilization rate is low
For example, the melting glas

Method used

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  • Industrial furnace with high-temperature low-oxygen air burner
  • Industrial furnace with high-temperature low-oxygen air burner
  • Industrial furnace with high-temperature low-oxygen air burner

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Embodiment Construction

[0014] Below in conjunction with accompanying drawing, describe in detail the concrete structure of the present invention, working principle, working process and implementation mode: figure 1 It is a structural schematic diagram of an industrial furnace with a high-temperature low-oxygen air burner. It is mainly composed of a furnace 8, a fuel spray gun 6 respectively arranged on the left and right sides of the furnace, a solenoid valve 4, animal heat exchangers 5 and 10, and a blower 1. Composed of induced draft fan 3 and four-way reversing valve 2. A high-temperature low-oxygen air burner is respectively arranged at the left and right ends of the furnace 8, and the burner ( figure 2 ) is made up of combustion chamber 11-12-13-14 and the combustion chamber end cover 15 that is arranged on combustion chamber port and cover plate 16. The end cover of the combustion chamber and the wall surface of the combustion chamber form an annular air intake passage. image 3 As an embod...

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Abstract

The present invention relates to an industrial furnace with high-temp. low-oxygen air burner, which is characterized by that the two ends of furnace cavity are respectively equipped with a high-temp.low-oxygen air burner. Said burner is formed from combustion chamber, combustion chamber end cover which is set at end hole of combustion chamber, possesses a circular through hole in its centre and is formed into a ring channel at end portion of the combustion chamber and cover plate positioned on the end cover of combustion chamber. Said burner can make oxygen being in high-temp. air obtain dilution by means of returned fume and convert it into low-oxygen air, and make the fuel combust under the condition of low-oxygen air, and its oxygen concentration is less than 15%. It not only effectively reduce NOx discharge, but also its discharge temp. only is 150-200 deg.C. so as to attain the goal of saving energy and protecting environment.

Description

technical field [0001] The invention belongs to a high-temperature and low-oxygen combustion technology and equipment, in particular to an industrial furnace with a high-temperature and low-oxygen air burner. Background technique [0002] Due to its excellent energy-saving and environmental protection effects, high-temperature low-oxygen combustion technology is the development direction of industrial furnaces all over the world. However, most of the existing industrial furnaces or various fuel oil and gas heating furnaces designed and manufactured by my country's metallurgical system did not use low-oxygen combustion technology, but directly contacted high-temperature and high-oxygen-concentrated air with fuel to ignite and burn , resulting in NO x The emission is high, the loss of smoke exhaust is large, and the energy utilization rate is low. For example, the melting glass furnace used in the prior art is exactly one of them, and its structure generally consists of a fur...

Claims

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Application Information

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IPC IPC(8): F23C5/08F23C5/24F23C5/32F23L15/02
CPCY02E20/34
Inventor 傅维镳周雁何裕昆
Owner TSINGHUA UNIV
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