Online measurement of molten phases
OwnerSubagyo, Geoffrey Brooksinventors
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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.
Claims8
A method of identifying and quantifying information from a molten phase product having an exposed surface area, the method comprising the steps of
- a) developing a standard for on-line evaluation of digital images and
- b) performing said evaluation on-line, in which the standard is developed using the following steps:
- i) taking a digital image of an exposed surface area of a molten phase product to produce a standard image data;
- ii) performing principal component analysis on the standard image data to define score vectors t1 and t2 characterizing the standard image data;
- iii) correlating values of the score vectors t1 and t2 with characterizing properties of the molten phase product to define standard values of t1 and t2;
- and the evaluation is performed using the following steps:
- iv) taking a digital image of an exposed surface area of a molten phase product to produce on-line image data;
- v) performing principal component analysis on the on-line image data to define score vectors t1 and t2 characterizing the on-line image data;
- vi) assigning a characterizing property to areas of the on-line image data according to said standard values of t1 and t2;
- and
- viii) creating an output of said characterizing property whereby phases are identified and quantified.
A method of monitoring a steelmaking ladle having high temperature molten phases to discriminate between areas of the ladle having any bare metal, bare metal covered with slag and fluid slag, the method comprising the steps of:
- a) developing a standard for on-line evaluation of digital images and
- b) performing said evaluation on-line, in which the standard is developed using the following steps:
- i) taking a digital image of an exposed surface area of a steelmaking ladle to produce a standard image data;
- ii) performing principal component analysis on the standard image data to define score vectors t1 and t2 characterizing the standard image data;
- iii) correlating values of the score vectors t1 and t2 with characterizing properties of the molten phase product to define standard values of t1 and t2;
- and the evaluation is performed using the following steps:
- iv) taking a digital image of an exposed surface area of a molten phase product to produce on-line image data;
- v) performing principal component analysis on the on-line image data to define score vectors t1 and t2 characterizing the on-line image data;
- vi) assigning a characterizing property to areas of the on-line image data according to said standard values of t1 and t2;
- and
- viii) creating an output of said characterizing property whereby phases are identified and quantified.
Dependencies are inferred from the claim text.