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Method and system for analyzing red fire layer migration velocity in sintering pot test

A technology of migration speed and sintering cup, which is used in the analysis of materials, material analysis by optical means, instruments, etc., can solve the problems of large amount of data, long time consumption, poor accuracy of results, etc., to achieve accurate measurement results and simple measurement methods. Effect

Active Publication Date: 2022-01-11
CENT SOUTH UNIV
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  • Application Information

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Problems solved by technology

[0020] The invention provides a method and system for analyzing the migration speed of the red fire layer in the sintering cup test, which is used to solve the technical problems of large amount of data, long time-consuming and poor result accuracy when observing the red fire layer of the sintering cup

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  • Method and system for analyzing red fire layer migration velocity in sintering pot test
  • Method and system for analyzing red fire layer migration velocity in sintering pot test
  • Method and system for analyzing red fire layer migration velocity in sintering pot test

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Embodiment 1

[0052]The technical scheme of the present invention is a method of collecting video images of the sintering process of a special sintering cup, and then analyzing and calculating the migration of the sintering red fire layer through a method for image recognition of the collected video (using VS2010 to develop a sintering cup test red fire layer migration image recognition software) speed. Include the following steps:

[0053] Step 1: Selection of the field of view of the lens image; see image 3 , Figure 4 , the camera is fixed with a bracket, and the line of sight is parallel to the ground surface. The entire field of view is shot on the side wall of the glass strip of the sintering cup, and the change of the sintering red fire layer can be observed through the glass strip. The selection of the lens image field of view is as follows: Figure 4 shown. The shooting direction of the camera is parallel to the horizon and passes through the side wall of the glass strip toward...

Embodiment 2

[0065] The actual height H of the field of view 实际 =0.74m, T=10s

[0066] t 1 , the upper position h of the red fire layer 上 =75.4cm, lower position h 下 =68.4cm

[0067] t 2 = t 1+ At time T, the position h in the upper part of the red fire layer 上 ’=74.4cm, lower position h 下 '=67.2cm

[0068] but:

[0069] t 1 ~t 2 During this cycle, the migration speed of the red fire layer

[0070] Example 2:

[0071] This embodiment provides a computer system, including a memory, a processor, and a computer program stored in the memory and operable on the processor. When the processor executes the computer program, the steps of the foregoing embodiments are implemented.

[0072] In summary, the present invention analyzes and calculates the migration speed of the sintering red fire layer through the video image of the special sintering cup sintering process collected, through the method of image recognition (using VS2010 to develop the red fire layer migration image recognit...

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Abstract

The invention discloses a method and system for analyzing the migration speed of the red fire layer in a sintering cup test. The method includes: setting a camera so that the field of view of the camera covers the side wall area of ​​the glass bar of the sintering cup; measuring the actual height of the field of view of the camera ;According to the image acquisition cycle, multiple images arranged in chronological order are collected in stages, and the time point of each image is recorded; the actual position of the pixel in the image is determined according to the ratio of the actual height to the size of the multiple images; The color of each pixel point of the image, judge whether the pixel point conforms to the color feature of the red fire layer, and obtain the time series array corresponding to the upper position and lower edge position of the red fire layer of multiple images and the time points; calculate the relationship between each time point and the previous time point The average value of the migration speed of the upper edge and the lower edge between the points is taken as the migration speed of the red fire layer in the current cycle, and the time series array of the migration speed of the red fire layer is obtained. The invention is convenient and quick and has accurate measurement results.

Description

technical field [0001] The invention relates to the field of sintering in blast furnace ironmaking, in particular to a method and system for analyzing the red fire layer migration speed in a sintering cup test. Background technique [0002] Due to its relatively simple process, large output and low energy consumption, blast furnace ironmaking is the main method of modern ironmaking, and its output accounts for more than 95% of the world's total pig iron production. Sinter is the main raw material of blast furnace, and it is a man-made rich ore with uniform particle size, stable chemical composition and good metallurgical properties. China's ironmaking system is dominated by sintering and pelletizing-blast furnace processes, and sinter is the main raw material for blast furnace production, accounting for about 75%. The production and quality of sinter have a great influence on blast furnace production. [0003] Sintering is a kind of sintering mixture (iron-containing raw m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/84
Inventor 杨凌志郭宇峰陈凤李光辉姜涛郑富强王峰王帅范晓慧杨永斌张元波李骞黄柱成陈许玲彭志伟徐斌饶明军甘敏易凌云谢泽强王超杨泽世
Owner CENT SOUTH UNIV
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