A method, system, and medium for estimating the inventory of ultra-stable froth on the surface of a thickener

By combining binocular cameras and TOF sensors, the volume of ultra-stable foam on the surface of the thickening pool is estimated in real time, which solves the problems of lag and inaccuracy in foam inventory estimation in the prior art and realizes precise control of the foam capture and elimination system.

CN122156226APending Publication Date: 2026-06-05JIANGXI COPPER TECHNOLOGY RESEARCH INSTITUTE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JIANGXI COPPER TECHNOLOGY RESEARCH INSTITUTE CO LTD
Filing Date
2026-01-15
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

Existing technologies cannot accurately estimate the amount of ultrastable foam on the surface of the thickening pool in real time, resulting in a lack of precise feedback control in the foam capture and elimination system, making it impossible to achieve 24-hour all-weather monitoring and quantitative assessment.

Method used

A stereo camera is used to acquire ultra-stable foam images of the dense pool surface with depth information. The foam thickness is measured by combining an image segmentation model and a TOF sensor. By calculating the true physical size and thickness distribution of the foam-covered area, the foam volume can be estimated in real time.

Benefits of technology

It enables accurate estimation of foam volume, provides the precise feedback signal required for closed-loop control, and improves the intelligence level of the production process.

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Abstract

The application discloses a method, system and medium for estimating the amount of super-stable froth on the surface of a thickener, the method comprising: obtaining a super-stable froth image on the surface of the thickener with depth information; segmenting the super-stable froth image on the surface of the thickener using an image segmentation model to obtain a pixel point set of a super-stable froth coverage area; calculating the real physical size of each pixel point of the super-stable froth coverage area; obtaining a froth thickness distribution map of the super-stable froth on the surface of the thickener; spatially aligning the super-stable froth image on the surface of the thickener and the froth thickness distribution map to obtain a spatial correspondence of the froth surface area and thickness; and using a thickness-area integral model to calculate an estimated value of the amount of the super-stable froth on the surface of the thickener according to the spatial correspondence of the froth surface area and thickness of the super-stable froth coverage area. The application can evaluate the amount of froth on the surface of the thickener in real time, and provide information feedback for a control strategy of a froth trapping and eliminating system.
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Citation Information

Patent Citations

  • CN118925297A