Moving Horizon Estimation of Sulfur Concentrate Grade Based on Kinetic Models Under Multiple Working Conditions

This article proposed a moving horizon approach to predict sulfur concentrate grade in a sulfur flotation process. In this approach, the grade prediction problem is formulated as a moving horizon estimation problem. To build the nominal model for the estimation, the kinetic of sulfur flotation proce...

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Main Authors: Mingfang He, Bei Sun, Guoxiong Zhou, Junjie Zhu
Format: Article
Language:English
Published: IEEE 2020-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/9183909/
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author Mingfang He
Bei Sun
Guoxiong Zhou
Junjie Zhu
author_facet Mingfang He
Bei Sun
Guoxiong Zhou
Junjie Zhu
author_sort Mingfang He
collection DOAJ
description This article proposed a moving horizon approach to predict sulfur concentrate grade in a sulfur flotation process. In this approach, the grade prediction problem is formulated as a moving horizon estimation problem. To build the nominal model for the estimation, the kinetic of sulfur flotation process are firstly studied. The unknown variable in the kinetic model, i.e., the flux of overflow, is obtained using machine vision technology. Moreover, to account for the multi-modal characteristic of sulfur flotation process, the kinetic model parameters are identified for different working conditions. To eliminate the effect of, a robust parameter identification approach is adopted. Finally, the kinetic model is embedded in the moving horizon estimation framework, which reconstructs the concentrate grade using from online measured process variables. Experimental results demonstrate the feasibility and efficient of the proposed method.
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spelling doaj.art-8df638a5377845008d1d0747198ae3002022-12-21T22:55:43ZengIEEEIEEE Access2169-35362020-01-01815971815973110.1109/ACCESS.2020.30209169183909Moving Horizon Estimation of Sulfur Concentrate Grade Based on Kinetic Models Under Multiple Working ConditionsMingfang He0https://orcid.org/0000-0001-6969-626XBei Sun1https://orcid.org/0000-0003-3503-801XGuoxiong Zhou2https://orcid.org/0000-0002-8295-3862Junjie Zhu3https://orcid.org/0000-0002-4745-7396School of Computer and Information Engineering, Central South University of Forestry and Technology, Changsha, ChinaSchool of Automation, Central South University, Changsha, ChinaSchool of Computer and Information Engineering, Central South University of Forestry and Technology, Changsha, ChinaSchool of Computer and Information Engineering, Central South University of Forestry and Technology, Changsha, ChinaThis article proposed a moving horizon approach to predict sulfur concentrate grade in a sulfur flotation process. In this approach, the grade prediction problem is formulated as a moving horizon estimation problem. To build the nominal model for the estimation, the kinetic of sulfur flotation process are firstly studied. The unknown variable in the kinetic model, i.e., the flux of overflow, is obtained using machine vision technology. Moreover, to account for the multi-modal characteristic of sulfur flotation process, the kinetic model parameters are identified for different working conditions. To eliminate the effect of, a robust parameter identification approach is adopted. Finally, the kinetic model is embedded in the moving horizon estimation framework, which reconstructs the concentrate grade using from online measured process variables. Experimental results demonstrate the feasibility and efficient of the proposed method.https://ieeexplore.ieee.org/document/9183909/Moving horizon estimationkinetic modelingparameter identificationmineral processing
spellingShingle Mingfang He
Bei Sun
Guoxiong Zhou
Junjie Zhu
Moving Horizon Estimation of Sulfur Concentrate Grade Based on Kinetic Models Under Multiple Working Conditions
IEEE Access
Moving horizon estimation
kinetic modeling
parameter identification
mineral processing
title Moving Horizon Estimation of Sulfur Concentrate Grade Based on Kinetic Models Under Multiple Working Conditions
title_full Moving Horizon Estimation of Sulfur Concentrate Grade Based on Kinetic Models Under Multiple Working Conditions
title_fullStr Moving Horizon Estimation of Sulfur Concentrate Grade Based on Kinetic Models Under Multiple Working Conditions
title_full_unstemmed Moving Horizon Estimation of Sulfur Concentrate Grade Based on Kinetic Models Under Multiple Working Conditions
title_short Moving Horizon Estimation of Sulfur Concentrate Grade Based on Kinetic Models Under Multiple Working Conditions
title_sort moving horizon estimation of sulfur concentrate grade based on kinetic models under multiple working conditions
topic Moving horizon estimation
kinetic modeling
parameter identification
mineral processing
url https://ieeexplore.ieee.org/document/9183909/
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AT beisun movinghorizonestimationofsulfurconcentrategradebasedonkineticmodelsundermultipleworkingconditions
AT guoxiongzhou movinghorizonestimationofsulfurconcentrategradebasedonkineticmodelsundermultipleworkingconditions
AT junjiezhu movinghorizonestimationofsulfurconcentrategradebasedonkineticmodelsundermultipleworkingconditions