Recognition of blast furnace gas flow center distribution based on infrared image processing

Shi, Lin; Wen, You-bin; Zhao, Guohui; Yu, Tao

doi:10.1016/s1006-706x(16)30035-8

Cited by 39 publications

(15 citation statements)

References 19 publications

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“…The distribution of blast furnace throat gas flow center can be obtained by means of cross temperature measurement and infrared image detection [7][8][9]. This paper makes batch processing on the collected infrared videos of blast furnace and the cross temperature measurement data [10], so as to obtain the basic data of the dynamic distribution of the different gas flow centers as well as the gas utilization rates in the corresponding times. The specific process is as below:…”

Section: Data Detection Of the Blast Furnace Gas Flow Centermentioning

confidence: 99%

Analysis of Gas Utilization Efficiency Based on the Data of Blast Furnace Gas Center

Li¹,

Shi²,

Liu³

et al. 2018

Proceedings of the 2nd International Conference on Material Science, Energy and Environmental Engineering (MSEEE 2018)

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This paper focuses on the detection methods of infrared photography to acquire the central data of GroupNo.6 blast furnace throat gas flow form Baotou Steel Corp. According to the situation that the distribution of blast furnace gas flow center is difficult to reflect certain regularities and class information as well as the problems that the traditional clustering methods failing to eliminate the influences of clustering noises, the density-based algorithm DBSCAN insensitive to noise with the merits of enabling to discover the class clusters of any shapes is adopted for the first time to establish the irregular classification model eliminating the noise data influence to analyze the relationship between the distribution of gas flow center and the gas utilization rate. Concept of "gas flow center deviation" is introduced in this paper. According to the research results, the gas utilization rate and the non-deviation of the gas flow center are positively correlated; the marginal development gas utilization rate is the lowest; the distribution of gas flow center presents the synchronous development type, which means the gas utilization rate is the highest when occupancy rate of gas with non-deviation and minor deviation is close to the sum and above 94%. Methods adopted in this paper could rapidly identify the relationship between the gas utilization rate and the gas distribution of the gas flow center, so as to provide further evidence for the online control of the blast furnace conditions.

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Section: Data Detection Of the Blast Furnace Gas Flow Centermentioning

confidence: 99%

Analysis of Gas Utilization Efficiency Based on the Data of Blast Furnace Gas Center

Li¹,

Shi²,

Liu³

et al. 2018

Proceedings of the 2nd International Conference on Material Science, Energy and Environmental Engineering (MSEEE 2018)

Self Cite

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show abstract

“…Thus, they can operate at their full capacity only during low-dust periods during BF operation and provide poor coke guidance during normal production. Infrared imagers [10,11] are installed atop the BF and are considerably affected by dust. Consequently, they can capture videos of only the central airflow and chute, which contain minimal material information.…”

Section: Introductionmentioning

confidence: 99%

A Real-Time 3D Measurement System for the Blast Furnace Burden Surface Using High-Temperature Industrial Endoscope

Chen

Jiang

et al. 2020

Sensors

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Capturing the three-dimensional (3D) shape of the burden surface of a blast furnace (BF) in real-time with high accuracy is crucial for improving gas flow distribution, optimizing coke operation, and stabilizing BF operation. However, it is difficult to perform 3D shape measurement of the burden surface in real-time during the ironmaking process because of the high-temperature, high-dust, and lightless enclosed environment inside the BF. To solve this problem, a real-time 3D measurement system is developed in this study by combining an industrial endoscope with a virtual multi-head camera array 3D reconstruction method. First, images of the original burden surface are captured using a purpose-built industrial endoscope. Second, a novel micro-pixel luminance polarization method is proposed and applied to compensate for the heavy noise in the backlit images due to high dust levels and poor light in the enclosed environment. Third, to extract depth information, a multifeature-based depth key frame classifier is designed to filter out images with high levels of clarity and displacement. Finally, a 3D shape burden surface reconstruction method based on a virtual multi-head camera array is proposed for capturing the real-time 3D shape of the burden surface in an operational BF. The results of an industrial experiment illustrate that the proposed method can measure the 3D shape of the entire burden surface and provide reliable burden surface shape information for BF control.

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“…So far, the most widely used method of measuring temperature in the heat treatment industry is the thermal couple system, however, the traditional contact temperature measurement with thermocouples cannot reflect the overall temperature distribution of the heated workpiece. Besides, the thermocouple will self-heat and affect workpiece temperature conduction in electromagnetic induction heating treatment [1,2,3].…”

Section: Introductionmentioning

confidence: 99%

Measurements of Temperature Distribution for High Temperature Steel Plates Based on Digital Image Correlation

Wang

Zhen

et al. 2019

Materials

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Temperature distribution is an important process parameter of steel plates during electromagnetic induction heating treatment. This study uses the digital image correlation method to develop an effective non-contact temperature measurement that allows obtaining valuable information about the temperature value of a high temperature steel plate specimen and analyzing its temperature distribution. A principle of thermal radiation temperature measurement based on the color chagre couled device (CCD) technology was introduced. The image processing system encapsulates the image update module, form mode module, image event module and temperature analysis module. The error analysis and temperature calibration were carried out to make sure the error deviation of the measurement system was within a small range. The temperature distribution of B1500HS at high temperature was analyzed by the designed measurement system which was in good agreement with the result from Raynger 3i Plus temperature gun, indicating that the measurement system based on image processing basically meets the requirements of temperature distribution measurement of a high temperature steel plate, and provides an important reference for a high temperature steel plate in non-contact temperature distribution measurement.

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Recognition of blast furnace gas flow center distribution based on infrared image processing

Cited by 39 publications

References 19 publications

Analysis of Gas Utilization Efficiency Based on the Data of Blast Furnace Gas Center

Analysis of Gas Utilization Efficiency Based on the Data of Blast Furnace Gas Center

A Real-Time 3D Measurement System for the Blast Furnace Burden Surface Using High-Temperature Industrial Endoscope

Measurements of Temperature Distribution for High Temperature Steel Plates Based on Digital Image Correlation

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