Heat accumulating type burner for heating furnace

A regenerative and heating furnace technology, applied in the field of heating furnaces and regenerative burners, can solve the problems that the nozzle size is difficult to meet the design requirements, high-temperature flue gas overflow and fire leakage, and cannot be repaired and replaced, etc., to achieve convenience Arrangement and maintenance, good flame organization, compact structure effect

Active Publication Date: 2015-10-28
FIVES STEIN METALLURGICAL TECH SHANGHAI CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In view of the limitations of on-site construction, it can only be designed as a relatively simple burner brick nozzle type. Even so, the nozzle size is difficult to meet the design requirements during construction. A fatal shortcoming of this kind of burner is that after the burner brick is damaged , cannot be repaired and replaced
Air and gas are sprayed into the furnace for diffuse combustion, no flame shape to speak of, and low combustion efficiency
[0005] In addition, another disadvantage of the traditional regenerative burner is that the

Method used

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  • Heat accumulating type burner for heating furnace
  • Heat accumulating type burner for heating furnace
  • Heat accumulating type burner for heating furnace

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Embodiment 1

[0033] see Figure 2 to Figure 5 , the present invention discloses a regenerative burner for heating furnace, said burner includes: burner brick part 1, air inlet unit 2, heat storage box 3, set on burner brick part 1 and furnace wall The first flange 4 between them, the second flange 5 arranged on both sides of the air inlet unit 2, the third flange 6 arranged between the air inlet unit 2 and the air duct; the air inlet unit 2 is arranged on the burner Between mouth brick part 1 and heat storage tank 3.

[0034] The burner brick part 1 includes a burner brick 1.1 and a metal shell part 1.2 made of high-temperature and erosion-resistant mullite castable; the two parts are cast together during manufacture, and the air and gas channels are combined in On an independent burner brick, the structure is the same as that of a conventional burner, the inner ring is a gas nozzle, and the outer ring is an air nozzle, which effectively organizes combustion.

[0035] The installation of...

Embodiment 2

[0040] The difference between this embodiment and Embodiment 1 is that in this embodiment, a honeycomb body and a block brick are arranged in the heat storage tank, and the honeycomb body is all made of mullite material, which has a large specific surface area and high heat storage and heat release speed. Fast, low resistance loss, high temperature efficiency, can preheat the gas to 1000 ℃, and recover waste heat to the maximum extent. The blocking brick is made of high alumina brick, which has the characteristics of high temperature resistance, can effectively resist the high temperature heat radiation from the furnace, and protect the honeycomb body.

[0041] A three-way reversing valve is installed on the flue gas and gas pipes in front of the burner, which is used for reversing the gas and flue gas during combustion and heat storage. A thermal resistor is installed on the flue gas branch pipe in front of each burner. When measuring the temperature When the set value is exc...

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Abstract

The invention discloses a heat accumulating type burner for a heating furnace. The heat accumulating type burner comprises a burner block part, an air inlet unit, a thermal storage tank, a first flange arranged between the burner block part and the furnace wall, second flanges arranged on the two sides of the air inlet unit and a third flange arranged between the air inlet unit and an air pipeline, wherein the air inlet unit is arranged between the burner block part and the thermal storage tank; the burner block part comprises a burner block prepared from high temperature resistant and flushing resistant mullite castabale, and a metal shell part; during production, the two parts are poured to form an integral body; an air channel and a coal gas channel are combined on the separate burner block; the structure of the burner is the same as that of the conventional burner, namely, the inner ring is a coal gas nozzle, and the outer ring is an air nozzle, so that combustion is effectively implemented. According to the invention, the heat accumulating type burner is high in combustion efficiency, changeable and good in temperature uniformity, and solves a plurality of defects of the conventional heat accumulating type burner; the product quality is improved; the enterprise cost is reduced; the working condition of workers is improved.

Description

technical field [0001] The invention belongs to the technical field of heating equipment, and relates to a heating furnace, in particular to a regenerative burner used in the heating furnace. Background technique [0002] Blast furnace gas is a by-product produced in the ironmaking process of iron and steel plants. The content of combustible components in blast furnace gas is only ~30%, and its calorific value is low. When it is used directly, it cannot reach the temperature required for heating billets. It can only be used with some high calorific value gas. Furnace gas is mixed and used, and the utilization rate is low. In iron and steel enterprises, a large amount of blast furnace gas is discharged into the atmosphere through direct ignition, which not only wastes a lot of energy, but also seriously pollutes the environment. [0003] In the 1980s, regenerative combustion technology began to appear, which can store heat from blast furnace gas to 1000°C, so as to achieve th...

Claims

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Application Information

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IPC IPC(8): C21B5/06
Inventor 林建苏朱宏祥张晓桂杜鹏张永佳冯波吴振宇黄胜利都晓溪潘云
Owner FIVES STEIN METALLURGICAL TECH SHANGHAI CO LTD
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