Sintered ore FeO content detection method and sintered ore FeO content detection system

A detection method and technology for sintered ore, which are applied in the field of FeO content detection method and system in sintered ore, and can solve the problem that the FeO content of sintered ore cannot be accurately detected in real time and the like.

Active Publication Date: 2020-05-08
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] A method and system for detecting the FeO content of sintered ore provided by the invention solves th

Method used

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  • Sintered ore FeO content detection method and sintered ore FeO content detection system
  • Sintered ore FeO content detection method and sintered ore FeO content detection system
  • Sintered ore FeO content detection method and sintered ore FeO content detection system

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Experimental program
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Embodiment 1

[0079] refer to figure 1 , the method for detecting FeO content in sintered ore provided by Embodiment 1 of the present invention includes:

[0080] Step S101, acquiring a thermal image, and extracting a key frame image in combination with the change law of the dust at the tail of the sintering machine;

[0081] Step S102, according to the key frame image, using the geometric characteristics of the tail trolley, extracting the infrared thermal image of interest, so as to obtain the infrared thermal image of the sintered ore section;

[0082] Step S103, based on the infrared thermal image of the cross-section of the sinter, extracting shallow-level features and deep-level features describing the quality of the sinter;

[0083] Step S104, establishing a multiphase thermodynamic model of the sintering process based on the Gibbs free energy theorem, and according to the multiphase thermodynamic model, obtain the FeO content classification characteristics at the highest temperatur...

Embodiment 2

[0089] refer to figure 2 , the method for detecting FeO content in sintered ore provided by Embodiment 2 of the present invention includes:

[0090] In step S201, a thermal image is obtained, and a key frame image is extracted in combination with the change law of the dust at the tail of the sintering machine.

[0091] Specifically, this embodiment also includes setting up an online FeO content detection system based on infrared thermal imager imaging before obtaining thermal images, see for details image 3 , including a distribution machine 10, an igniter 20, a sintering machine tail 30, a temperature measuring device 40, an optical fiber 50, a universal platform 60 and a computer 70. The uncooled focal plane infrared thermal imaging camera is installed at the universal platform of the observation window at the tail of the sintering machine to collect real-time temperature information of the blanking material at the tail of the machine. The temperature information is trans...

Embodiment 3

[0278] In this embodiment, the 360m 2 The sintering machine is used as an experimental platform, and the invented measuring device is applied to the detection of FeO content in the section of the sintered material at the end of the machine. On-site measurement systems such as image 3 As shown, the detection device is installed at the universal platform of the observation window at the tail of the sintering machine, and the temperature information is transmitted by optical fiber to the computer in the central control room for data processing. Figure 8 As shown, the details are as follows:

[0279] Firstly, fix the end of the sintering machine with a universal pan-tilt, set up an infrared thermal imager to take pictures of the cutting area of ​​the sintering machine in the observation window; then obtain the blanking cycle according to the speed of the on-site sintering machine, and extract the key points from the image smoke detection value in one cycle Frame the image, ext...

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Abstract

The invention discloses a sintered ore FeO content detection method and a sintered ore FeO content detection system. The method comprises: obtaining a thermal image; extracting a key frame image in combination with a dust change rule at the tail portion of a sintering machine; according to the key frame image, extracting an interested infrared thermal image by utilizing the geometrical characteristics of a trolley at the tail portion of the sintering machine so as to obtain a sintered ore cross section infrared thermal image; based on the sintered ore cross section infrared thermal image, extracting the shallow characteristics and the deep characteristics for describing the quality of the sintered ore; establishing a sintering process multiphase thermodynamic model based on Gibbs free energy theorem; according to the multiphase thermodynamic model, obtaining the FeO content classification characteristics of the sintered ore at the highest temperature, and establishing a FeO content prediction model based on multiple heterogeneous characteristics; and real-timely and onlinely predicting the FeO content of the sintered ore by utilizing the shallow characteristics, the deep characteristics and the FeO content classification characteristics. By adopting the technical scheme, the technical problem that the FeO content of the sintered ore cannot be accurately detected in real time inthe prior art is solved, the FeO content can be accurately detected in real time, and the method has the characteristics of high precision and strong interpretability.

Description

technical field [0001] The invention relates to the field of detecting FeO content of sintered ore, in particular to a method and system for detecting FeO content of sintered ore. Background technique [0002] The content of ferrous oxide, chemical formula FeO in sinter is a key parameter reflecting the reducibility of sinter. On-line detection of FeO content in sinter is very important for improving the quality of sinter, controlling the sintering process, and ensuring the smooth operation of the blast furnace. However, the harsh environment of the sintering process makes it difficult to detect the FeO content of sintered ore directly and in real time. [0003] At present, the methods for detecting FeO content mainly include offline observation of pyrotechnic workers' experience, chemical analysis, establishment of data models and even detection of FeO content in sintered ore. The artificial experience method refers to the worker who observes the brightness of the combust...

Claims

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Application Information

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IPC IPC(8): G16C20/20G16C10/00G06T7/00G06T7/13G01J5/00
CPCG16C20/20G16C10/00G06T7/0004G06T7/13G01J5/00G01J2005/0077G01J2005/0092G06T2207/10048G01J5/485Y02P90/30
Inventor 蒋朝辉郭宇浩潘冬陈致蓬桂卫华谢永芳阳春华
Owner CENT SOUTH UNIV
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