Method for regulating oxygen atmosphere in fuel oil (gas) reverberatory furnace by using recovered fume

A technology of reverberatory furnace and oxygen atmosphere, applied in the field of energy saving of fuel reverberatory furnace, can solve the problems of uncontrollable oxygen atmosphere and increased energy saving potential, and achieve the effects of reducing energy consumption, improving utilization rate and reducing oxygen content

Inactive Publication Date: 2010-12-15
江西宏成铝业有限公司
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Problems solved by technology

[0008] The purpose of the present invention is to solve the problems that the oxygen atmosphere in the flue gas in the combustion chamber is uncontrollable and the energy-saving potential needs to be improved during the smelting process of the fuel (gas) reverberatory furnace existing in the HTAC regenerative high-temperature combustion technology, and proposes a new type of regenerative combustion technology. High-efficiency energy-saving aluminum melting reaction furnace, method for modulating oxygen atmosphere of fuel (gas) reverberatory furnace with recovered flue gas

Method used

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  • Method for regulating oxygen atmosphere in fuel oil (gas) reverberatory furnace by using recovered fume
  • Method for regulating oxygen atmosphere in fuel oil (gas) reverberatory furnace by using recovered fume
  • Method for regulating oxygen atmosphere in fuel oil (gas) reverberatory furnace by using recovered fume

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Embodiment 1

[0024] The specific embodiment of the present invention is as figure 1 As shown in the figure, it is a structural schematic diagram of a high-efficiency and energy-saving aluminum melting reverberatory furnace with low-temperature flue gas recovery and modulation atmosphere. In this embodiment, on the basis of the fuel (gas) reverberatory furnace structure of HTAC regenerative high-temperature combustion technology, a low-temperature flue gas recovery pipeline is added. A low-temperature flue gas recovery pipe 20 is added to the flue gas pipe 18 between the heat storage body A and the four-position reversing valve 15. A part of the pipe is connected to the air intake end of the blower, and a flue gas regulating valve A is installed on this part of the pipe. The other part is connected with the pipe 19 leading to the heat storage body B from the four-position reversing valve 15, and the flue gas regulating valve B is set on this part of the pipe.

[0025] When the controllabl...

Embodiment 2

[0029] Another specific embodiment of the present invention is as image 3 Shown is a schematic diagram of the high-temperature flue gas recovery modulation atmosphere regenerative energy-saving reverberatory furnace for melting aluminum. In this embodiment, on the basis of the fuel (gas) reverberatory furnace structure of HTAC regenerative high-temperature combustion technology, a high-temperature flue gas recovery pipeline is added. A high-temperature flue gas recovery pipe 22 is added at the high-temperature flue gas outlets at both ends of the furnace body 1, and a high-temperature flue gas reversing regulating valve 21 is arranged in the middle of the high-temperature flue gas recovery pipe. According to the measured results of the oxygen content in the furnace, the intake volume of the recovered high-temperature flue gas can be controlled by adjusting the flue gas reversing regulating valve, so that the oxygen atmosphere in the furnace combustion chamber can always be ke...

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Abstract

The invention relates to a method for regulating oxygen atmosphere in a fuel oil (gas) reverberatory furnace by using recovered fume. The method is implemented by a reverberatory furnace regulating the fuel oil (gas) by using the recovered fume. The reverberatory furnace regulating the fuel oil (gas) by using the recovered fume comprises a furnace body 1, a nozzle, heat accumulators (7 and 8), fume pipelines (18 and 19), a reversing adjusting valve 15, an air blower 13 and the like, and is characterized in that: a fume recovering pipeline with a fume adjusting valve is arranged between a heat accumulator A (7) and a heat accumulator B (8) and regulates the oxygen atmosphere in a combustion chamber of a reaction furnace by using the recovered fume to ensure that the oxygen is fully burned; a pipeline arranged between low-temperature pipelines below the heat accumulators is a low-temperature fume recovering pipeline (20); a pipeline arranged between high-temperature pipelines above the heat accumulators is a high-temperature fume recovering pipeline; and the oxygen atmosphere in the combustion chamber can be regulated by one of the low-temperature fume recovering pipeline and the high-temperature fume recovering pipeline as required.

Description

technical field [0001] The utility model relates to a method for modulating the oxygen atmosphere of a fuel (gas) reverberatory furnace with recovered flue gas, which belongs to the technical field of energy saving of the fuel (gas) reverberatory furnace. Background technique [0002] Regenerative high-temperature air combustion technology HTAC (High Temperature Air Combustion) is a brand-new combustion technology that has become popular at home and abroad. It absorbs heat from high-temperature flue gas through high-efficiency heat storage materials, reducing the exhaust gas temperature to 180°C The heat absorbed by the high-efficiency heat storage material from the high-temperature flue gas will preheat the combustion-supporting air from room temperature to a high temperature of about 800-1000°C and then mix it with the original high-temperature flue gas of about 1200°C in the combustion chamber. It is carried out in a high-temperature atmosphere, which can not only recover...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F27B3/10F27B3/22F27B3/28
Inventor 熊曙雄曾毅钦陈敬福熊曙海徐忠清曾纪铭
Owner 江西宏成铝业有限公司
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