Combustion control system and method of industrial furnace

A technology for industrial furnaces and control systems, which is applied in the direction of combustion methods, combustion control, and fuel supply adjustment. Explosion accidents, the effect of high detection accuracy

Active Publication Date: 2014-03-26
FOCUSED PHOTONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] 1. Due to the large volume of the heating furnace, the temperature response lags greatly and the temperature adjustment is slow;
[0008] 3. It is impossible to obtain the oxygen and carbon monoxide concentration in each section of the heating furnace in real time and continuously, and it is impossible to determine the actual air consumption coefficient in each section of the heating furnace, that is, it is impossible to determine whether each section of the heating furnace is in the best combustion state;
[0009] 4. Since the combustion situation in the heating furnace cannot be accurately known, the actual air consu

Method used

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  • Combustion control system and method of industrial furnace
  • Combustion control system and method of industrial furnace

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0088] Example 1:

[0089] figure 1 The structure diagram of the combustion control system of the industrial furnace kiln according to the embodiment of the present invention is schematically presented, such as figure 1 As shown, the combustion control system of the industrial kiln includes:

[0090] A laser spectrum detection device, the laser spectrum detection device is arranged on the industrial furnace, and is used to detect the gas content in the industrial furnace, such as the content of oxygen and carbon monoxide; the laser spectrum detection device includes a laser, a detector and analysis modules. The laser and the detector can be installed on opposite sides of the industrial furnace respectively, so that the measurement light path passes through the gas in the industrial furnace; the laser and the detector can also be installed on one side, and the light reflection part can be installed on the opposite other side. side, so that the measuring light passes through ...

Example Embodiment

[0143] Example 2:

[0144] An application example of the combustion control system and control method of an industrial furnace according to Embodiment 1 of the present invention in a steel rolling heating furnace.

[0145] Figure 4 , 5 The horizontal and vertical installation diagrams of the laser spectrum detection device of this application example are given respectively, as shown in the figure. Figure 4 , 5 As shown in the figure, the heating furnace is divided into a preheating section, a heating section and a soaking section. The installation position of the laser spectrum detection device is as follows: in terms of height, it is 10-50 cm above the upper burner of each section; at this height position, the installation, It is easy to maintain and has a good optical path; in the horizontal direction, the preheating section: avoid the area affected by air leakage at the steel inlet (2.2m from the steel inlet side), and take the center of the section slightly to the cen...

Example Embodiment

[0162] Example 3:

[0163] An application example of the combustion control system and control method of an industrial furnace according to Embodiment 1 of the present invention in a steel rolling heating furnace.

[0164] In this application example, the heating furnace is divided into a preheating section, a heating section and a soaking section. The installation position of the first set of laser spectrum detection device is specifically: in terms of height, it is between the burners of each section and the workpiece; this height In terms of location, installation and maintenance are convenient, and the optical path is good, which can better detect the combustion atmosphere of the workpiece accessories; in the horizontal direction, the preheating section: avoid the area affected by air leakage from the steel inlet (2m from the steel inlet side), and take the center of the section Slightly biased toward the center of the two burners in the heating section; heating section: t...

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PUM

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Abstract

The invention provides a combustion control system and method of an industrial furnace. The combustion control system of the industrial furnace comprises a laser spectrum detection device, a combustion control device, an oxidation burning loss detection device, a comparison device and a computing device, wherein the laser spectrum detection device is used for detecting the content of gas in the industrial furnace, the laser spectrum detection device comprises a laser, a detector and an analysis module, the combustion control device is used for optimizing and adjusting the combustion conditions in the industrial furnace according to data transmitted by the laser spectrum detection device, the oxidation burning loss detection device is used for detecting oxidation burning loss of workpieces which pass through the industrial furnace, and transmitting the detection result to the comparison device, the comparison device is used for obtaining the comparison result according to the received detection result and the original oxidation burning loss conditions, and transmitting the comparison result to the computing device, and the computing device is used for obtaining the combustion control result of the industrial furnace according to the received comparison result. The combustion control system and method of the industrial furnace have the advantages that detection accuracy is high, the detection speed is high, the cost is low, and energy is saved.

Description

technical field [0001] The invention relates to a heating furnace, in particular to a combustion control system and a control method of an industrial heating furnace. Background technique [0002] The heating furnace is a major energy consumer in the rolling mill, and at the same time occupies a very important position in the rolling production. It is mainly used to improve the plasticity of the steel, reduce the deformation resistance, and heat the steel to the temperature level required by the process according to the rolling rhythm of the rolling mill. Heating quality. On the premise of ensuring high-quality production, it is necessary to reduce fuel consumption as much as possible and reduce oxidative burning loss. [0003] When the air consumption coefficient in the heating furnace is in the optimal combustion area, the thermal efficiency of the fuel system is the highest. If the air consumption coefficient is lower than the lower limit (minimum value), the fuel is no...

Claims

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Application Information

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IPC IPC(8): F23N1/02
Inventor 顾海涛施跃华章瑜徐瑞传俞大海高书成王健
Owner FOCUSED PHOTONICS
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