For Immediate Onsite or Remote Support

fuzzy logic in flotation of coper

Experimental investigation and adaptive neural fuzzy ...

2019-7-23 · The potential of copper recovery from flotation tailings was experimentally investigated using a laboratory-mixing tank. The experiments were performed with solid weight percentages of 30wt%, 35wt%, 40wt% and 45wt% in water. The measurements revealed that adding sulfuric acid all at once to the tank rapidly increased the efficiency of the leaching …FUZZY-BASED MODELING AND CONTROL OF AN …Saravani et al. (2014) developed a fuzzy logic model simulating the relationship between the process conditions (i.e. the air velocity, slurry solids%, frother …

Using fuzzy logic for on-line trend analysis

2014-1-1 · August 24-29, 2014 Flotation Control Incorporating Fuzzy Logic and Image Analysis: P. Dawson*. R. Koorts.** *FQML, Kansanshi, Solwezi, Zambia (Tel: +260 (0) 96 584 3924; e-mail: [email protected] ). **BluESP (Pty) Ltd, Johannesburg, South Africa (Tel: +27 (0) 82 877 4457; e-mail [email protected] ) Abstract: In the metals and mining ...Modeling and Control of an Industrial Flotation Column ...This paper describes the application of machine vision and fuzzy logic in controlling a batch-flotation cell. To perform this process, a laboratory flotation cell was operated under different ...

Geologically-Constrained Fuzzy Mapping of Porphyry …

The vectorial fuzzy logic technique of Robinson (2000) involves the subjective assignment of fuzzy prospectivity weights and fuzzy measures of confidence weights based on 80 deposits with known production of >500 kg gold. The method of Robinson (2000) is thus applicable to areas with well-known deposits (i.e., with production data) but is not ...Implementation of fuzzy logic in the smelting process of ...The analysis of control quality of technological process of melting of copper-Nickel sulfide materials is carried out. The structure of the automatic melting control system is proposed, information and control channels are described. The algorithm of process control using fuzzy logic, which allows stabilizing the copper content in the matte within the specified limits.

Reconnaissance-scale conceptual fuzzy-logic …

2018-11-7 · Reconnaissance-scale conceptual fuzzy-logic prospectivity modelling for iron oxide copper–gold deposits in the northern Fennoscandian Shield, Finland V. NYKA¨NEN 1*, D. I. GROVES 3, V. J. OJALA, P. EILU2 AND S. J. GARDOLL 1Bedrock and Mineral Resources, Geological Survey of Finland, PO Box 77, FI-96101 Rovaniemi, Finland ing Artificial Intelligence Techniques to Improve the ...For example, in, a model based on fuzzy logic is reported to predict ground vibration and environmental impact due to blasts in the open-pit mine. For this model, the toolbox fuzzy logic of MATLAB was used. In, ANN was used to predict the copper ore flotation indices of separation efficiency within different operational conditions. 3.

Predictive Cu porphyry potential mapping using fuzzy ...

2021-3-22 · Boolean logic, index overlays (Harris, 1989), analytical hierarchy process (Wilkinson, Harris, & Grunsky, 1999), and fuzzy logic (An, Moon, & Bonham-Carter, 1992). In this paper, we report the results of mapping Copper porphyry potential in the Ahar–Arasbaran district by employing the theory of fuzzy sets. The Ahar–ArasbaranMitigation of environmental hazards of sulfide mineral ...2020-10-28 · flotation performance while silica nanoparticles did not. Seawater had a negative effect on both the froth stability and the grade of lead (Pb) and copper (Cu) but it improved the recoveries of both Pb and Cu minerals. Hybrid Neural Fuzzy Interference System (HyFIS) ML model showed the best accuracy to be adopted for automated sulfide ore

Mendel, J.M. (1995) Fuzzy Logic Systems for Engineering A ...

This research was done to predict copper and iron recovery from a copper flotation concentrate in a stirred tank bioreactor using a fuzzy logic model. Experiments were carried out in the presence of a mixed culture of mesophilic bacteria at 35° C, and a mixed culture of moderately thermophilic bacteria at 50° C. Input variables were method of ...Flotation Control Incorporating Fuzzy Logic and Image …2014-7-16 · Fuzzy logic systems incorporate a three -step process, fuzzification, fuzzy processing, and def uzzification which evaluate system parameters. During fuzzification, the fuzzy system translates inputs into sets of data defined by membersh ip functions and labels. In the second step of fuzzy processing, the system

Application of grey fuzzy logic in abrasive jet machining ...

2022-1-7 · Micro Abrasive Jet Machining (µAJM) of glass materials is being used widely in MEMS and biomedical industries. Precise control of input parameters is necessary to obtain quality holes in these materials. In the present study, parameter optimization of AJM is carried out with a hybrid multi-criteria optimization technique namely Gray based Fuzzy Logic. The control variables …A Fuzzy Logic Model to Predict the Bioleaching Efficiency ...2015-2-11 · tems in such complex media, in this research, a multi input-multi output fuzzy logic model was defined to pre-dict copper and iron recovery from a flotation copper concentrate in a stirred electro-bioreactor. The proposed model predicts the nonlinear behavior of conventional and electrochemical bioleaching processes successfully. 2 ...

Multivariable Expert Fuzzy Control for a Rougher Flotation ...

2009-1-1 · Keywords: Flotation, grade analysis, soft sensor, expert control, fuzzy logic, multivariable control. 1. INTRODUCTION The rougher flotation is the first stage in the concentration of low grade minerals and its target is to maximize recovery keeping the concentrate grade within acceptable ranges.PERFORMANCE OF A FLOTATION COLUMN FUZZY …2006-9-30 · the flotation column. conditions. Fuzzy logic inference systems can be a solution to Otherwise, the control is made under fuzzy mode, develop controllers of complex hard-to-model i.e., the manipulated variables are calculated by fuzzy processes, whose behaviour can, nevertheless, be inference. The controller, that works in real time, is a

copper extraction and purification

2015-7-26 · Getting copper from chalcopyrite, CuFeS 2. Chalcopyrite (also known as copper pyrites) and similar sulphide ores are the commonest ores of copper. The ores typically contain low percentages of copper and have to be …(PDF) Expert control system in column flotation ...The Application of Fuzzy Logic Control Concentrate Grade in Column Flotation at Toyaha Mines, Proceedings International Conference on Column Flotation, Sudbury, Canada, 375-389 (1991). 4.

Spatial Data Modeling Based MCE Fuzzy Logic for …

2017-3-21 · GIS Provides spatial and analytical support to assess multicriteria (MCE) methods, which are used to combine data to show areas best fulfilling specific criteria. Petroleum explorations would benefit from an MCE method that is spatial, is flexible for combining heterogeneous data, considers the interpretive nature of the data, is geologically applicable, …[PDF] The effect of particle size on coal flotation ...2018-7-30 · Coal flotation is a complex multiphase process governed by different sub-processes and interphase interactions. The coal cleaning efficiency by flotation is largely affected by many different physical and chemical factors that can be roughly classified into three main group: coal feed properties, pulp chemical and rheological properties, and machine and operational …