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Device and method for controlling combustion exhaust gas of regenerative heating furnace

A technology of control method and control device, which is applied in the direction of furnace control device, combustion method, furnace monitoring device, etc., can solve problems such as energy loss, and achieve the effect of reducing energy

Inactive Publication Date: 2016-03-16
SAC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] That is, in the prior art, only 80% of the combustion gas generated during combustion is used for preheating the combustion air, and 20% of the high-temperature combustion gas (1200-1250 degrees) is discharged into the atmosphere, resulting in energy loss

Method used

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  • Device and method for controlling combustion exhaust gas of regenerative heating furnace
  • Device and method for controlling combustion exhaust gas of regenerative heating furnace
  • Device and method for controlling combustion exhaust gas of regenerative heating furnace

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Embodiment Construction

[0034] Hereinafter, a combustion exhaust gas control device and control method for a regenerative heating furnace according to an embodiment of the present invention will be described in detail with reference to the drawings. When describing the present invention, when it is judged that the detailed description of related known structures or functions will affect the gist of the present invention, the detailed description will be omitted.

[0035] The heating furnace in this embodiment may be a heating furnace for heating materials to a temperature capable of forging in a forged steel production process. But not limited thereto, the heating furnace can be other types of heating furnaces.

[0036] figure 1 It is a figure which schematically shows the control apparatus of the regenerative heating furnace which concerns on one Example of this invention.

[0037] like figure 1 As shown, on the left and right side surfaces of the regenerative heating furnace 100, the regenerativ...

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Abstract

The present invention provides a method for controlling the combustion of a regenerative heating furnace. The method for controlling the combustion of a regenerative heating furnace, according to the present invention, comprises: a first step of detecting an in-furnace temperature by using a temperature detection sensor in the heating furnace; a second step of receiving a measured value of the in-furnace temperature, comparing the measured value with a set reference temperature value and outputting an analog signal to a sequence controller according to a value of the comparison; a third step of adjusting combustion, an amount of fuel, an amount of air and a discharge amount of combustion gas of each burner by the sequence controller by means of a program set according to the value outputted in the second step; a fourth step of measuring a pressure in the heating furnace due to the combustion gas according to a combustion load; a fifth step of comparing the measured pressure value with a reference pressure and outputting an analog signal to the sequence controller according to a value of the comparison; and a sixth step of controlling the discharge amount of combustion gas set in the third step by the sequence controller according to the value outputted in the fifth step.

Description

technical field [0001] The present invention relates to a heating furnace for heating materials to a temperature capable of forging in a forging steel production process. More specifically, the present invention relates to a control method and a control device. In a heating furnace, the discharge of fuel, combustion air, and combustion exhaust gas from the burner is controlled to appropriately adjust the pressure in the furnace caused by the combustion gas, and all the exhaust gas is used for heat storage for heat exchange. body heat storage. Background technique [0002] Usually, in the steel production process, in order to heat the material to the target temperature, a heating furnace is used, and most of them use a burner that uses a mixed gas as a fuel. has an increasing trend. [0003] All the burners installed in the existing heating furnace perform continuous combustion, and the exhaust gas generated at this time is recovered by a recuperator as a heat exchanger. H...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D1/52C21D9/00F23L15/02F27D19/00
CPCC21D9/00C21D1/52F23L15/02F23N5/00F27B17/0075F27D21/0014F27D99/0033F27D2019/0018F27D2019/0028F27D2019/0087F27D2021/0007C21D11/00F23N2221/08F23N2225/04F23N2225/08Y02E20/34F27D19/00F23N5/022F27D2019/0031
Inventor 张炳禄韩昇勋安民焕
Owner SAC
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