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Method and device for determining slag removal effect

A determination method and slag removal technology, applied in image analysis, image enhancement, instruments, etc., can solve problems such as low accuracy, unstable slag removal effect, and large fluctuation of converter sulfur return.

Active Publication Date: 2021-07-23
SHOUGANG CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Aiming at the problems existing in the prior art, the embodiment of the present invention provides a method and device for determining the slag removal effect, which is used to solve the problem that the accuracy of judging the slag removal effect in the prior art is not high, which causes the slag removal effect to be unstable, which in turn leads to The technical problem of large fluctuations in the amount of sulfur returned to the converter

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  • Method and device for determining slag removal effect
  • Method and device for determining slag removal effect
  • Method and device for determining slag removal effect

Examples

Experimental program
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Effect test

Embodiment 1

[0044] This embodiment provides a method for determining the effect of slag removal, such as figure 1 As shown, the methods include:

[0045] S110, collecting images of molten iron on the surface of the ladle;

[0046] In this step, a CCD industrial camera can be used to collect images of molten iron on the surface of the ladle. Specifically, the CCD industrial camera is installed in front of the ladle to continuously capture images of the molten iron on the surface of the molten iron to form two-dimensional images of each frame.

[0047] S111. After converting the molten iron image, use a picture pixel recognition algorithm to identify the molten iron image, and obtain the RGB value of each pixel in the molten iron image;

[0048] Here, since each frame of two-dimensional images is an analog value, it is necessary to perform conversion processing on the molten iron image, which specifically includes: using an image acquisition card to convert each frame of two-dimensional im...

Embodiment 2

[0073] This embodiment provides a device for determining the slag removal effect, such as figure 2 As shown, the device includes: an image acquisition unit 21, an image processing unit 22, an identification unit 23 and a determination unit 24; wherein,

[0074] The image acquisition unit 21 collects the molten iron image on the surface of the molten iron ladle, and the image disabled unit 21 in the present embodiment can be a CCD industrial camera, specifically the CCD industrial camera is installed in the front of the molten iron ladle, continuously photographs the molten iron image on the molten iron surface, and forms each Frame a 2D image.

[0075] Here, since each frame of the two-dimensional image is an analog value, the image processing unit 22 needs to be used to convert the molten iron image. Wherein, the image processing unit 22 may include an image acquisition card.

[0076] Concretely include: converting the two-dimensional images of each frame by using the imag...

Embodiment 3

[0099] In practical applications, when the method provided in Embodiment 1 and the device provided in Embodiment 2 are used to determine the slag removal effect of the 210t ladle, the specific implementation is as follows:

[0100] The CCD industrial camera is installed in front of the ladle to continuously capture images of molten iron on the surface of the molten iron to form two-dimensional images of each frame. The image acquisition card converts the two-dimensional images of each frame, converts the analog quantity into a digital quantity, compresses the digital quantity, and transmits the compressed digital quantity to the industrial computer.

[0101] When the industrial computer receives the compressed digital quantity, it decompresses the digital quantity to obtain a two-dimensional image of the molten iron image, uses the image pixel recognition algorithm to identify the two-dimensional image of the molten iron image, and obtains each of the molten iron images The RG...

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Abstract

The embodiment of the present invention provides a method and device for determining the slag removal effect. The method includes: collecting the molten iron image on the surface of the ladle; identifying the molten iron image to obtain the RGB value of each pixel in the molten iron image; The RGB value of the pixel determines the Red value of each pixel; the molten iron interval and the slag interval are determined according to the Red value of each pixel; the slag bright surface ratio is determined according to the molten iron interval and the slag interval. When it is greater than or equal to the preset reference value, it is determined that the slag removal effect is qualified; in this way, using the Red value of the pixel to determine the slag interval and the molten iron interval can ensure the determination accuracy, and determine the slag removal bright surface according to the slag interval and the molten iron interval When the ratio meets the preset benchmark value, it means that the removal of slag has met the requirements, so that the determination accuracy of slag removal effect can be improved, the stability of slag removal effect can be improved, and the fluctuation of converter sulfur return can be reduced.

Description

technical field [0001] The invention belongs to the technical field of molten iron pretreatment, and in particular relates to a method and device for determining the slag removal effect. Background technique [0002] Sulfur is a harmful element for most steel grades. The best desulfurization condition is hot metal pretreatment desulfurization, which can achieve extremely low control of the sulfur content of hot metal at the end of desulfurization. After desulfurization pretreatment, slag with high sulfur content will float on the surface of molten iron. [0003] During the converter smelting process, due to changes in thermodynamic conditions, the sulfur content in the slag with high sulfur content will re-enter the molten iron, resulting in sulfur reversion during the converter smelting process. In order to reduce sulfur return, it is necessary to control the slag removal process. The traditional slag removal process adopts a fixed slag removal time, or relies on manual ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21C5/28G06T7/00G06T7/90G06T7/62
CPCC21C5/28G06T7/0004G06T2207/10016G06T2207/10024G06T2207/30116G06T7/62G06T7/90
Inventor 高攀赵晓东朱国森李海波孙亮黄桂斌郭玉明刘风刚井含文马文俊
Owner SHOUGANG CORPORATION
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