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Online measurement of molten phases

Inactive Publication Date: 2006-10-05
MCMASTER UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there is no prior application of this method for online measurements of molten phases.
In the case of high temperature molten phases processing such as steel making, due to the extreme conditions, it is difficult and costly to carry out real time measurements.

Method used

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  • Online measurement of molten phases
  • Online measurement of molten phases
  • Online measurement of molten phases

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Embodiment Construction

[0012] A schematic depiction of an online measurement system of molten phases is generally indicated by reference numeral 20 in FIG. 1. As shown in the figure, this system 20 is applied to measuring molten phases in a vessel 22 and includes a digital camera 24 for taking image data, and a computer 26 for processing the image data.

[0013] The very first step for measuring the properties of molten phases, such as disruption of a slag surface, partial solidification of a slag phase, or temperature of the slag, is capturing image data of the slag surface using the digital camera 24 in RGB (Red-Green-Blue) format. The RGB format is a common way to represent high-resolution colour images, which each pixel is specified by three values—one each for the red, green, and blue (RGB) components of the pixel's colour. In a colour image of FIG. 2, the white areas of the image correspond to bare metal, yellow areas correspond to thin slag, brown areas correspond to fluid slag, and black areas corre...

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Abstract

A method for identifying and quantifying information about molten phases, including slags, fluxes, metal and matte using a multivariate image analysis approach. Using this procedure, the properties of molten phases such as disruption of slag, the size of bare metal, partial solidification of slag, and temperature of slag can be accurately determined within a reasonable computation time. Moreover, this method can be implemented as an online measurement tool of molten phases.

Description

TECHNICAL FIELD [0001] The present invention is directed to identifying and quantifying information from molten phases, including slags, fluxes, metal, and matte. Using a method based upon principal components analysis of image data taken from the surface of molten phases. BACKGROUND ART [0002] Multivariate image processing provides a reliable method for extracting information from image data. This method has been successfully applied for image processing in several applications, such as satellite image data and the medical area. However, there is no prior application of this method for online measurements of molten phases. [0003] Availability of a reliable real time measurement of a process is an important factor for developing any control system. In the case of high temperature molten phases processing such as steel making, due to the extreme conditions, it is difficult and costly to carry out real time measurements. Currently, several methods for gathering information of molten p...

Claims

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Application Information

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IPC IPC(8): C21B13/00B22D2/00C21C5/46C21C5/52F27D19/00F27D21/00F27D21/02G01N33/20G06T5/00G06T7/00G06T7/40
CPCB22D2/00B22D2/001C21C5/4673C21C2005/5288F27D19/00F27D21/0028G06T2207/30136F27D2019/0006G01N33/206G06T7/001G06T7/402G06T7/408F27D21/02G06T7/42G06T7/90G01N33/205Y02P10/20
Inventor SUBAGYO,BROOKS, GEOFFREY A.
Owner MCMASTER UNIV
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