Pper Ore Concentration Optimal Control

Dynamic Optimal Control Princeton University

Dynamic Optimization: ! The Optimal Control Problem min u(t) J = min u(t)!"#x(t f)$%+ L[ ]x(t),u(t) dt t o t f & ' *) +,)-) dx(t) dt = f[x(t),u(t)], x(t o)given Minimize a scalar function, J, of terminal and integral costs with respect to the control, u(t), in (t o,t f)

Optimal Control of Iron Ore Flotation with Soft Sensors

Optimal Control of Iron Ore Flotation with Soft Sensors for Grade and Recovery. MANOEL MORALES, CASSIO COSTA, TIAGO CAIXETA, CARLOS QUINTERO . Procemin-Geomet 2015, Santiago, Chile, 21-23 October, 2015 . For Brazilian iron ore producers, reverse cationic flotation is preferred to obtain high quality concentrates from silicate ores. The SiO2 (silica) particles are rendered hydrophobic by amine

Technical Review and Evaluation of Ore Sorting

By means of pre-concentration, ore sorting aims to separate the barren material from the valuable ore to reduce energy consumption and tailings generation, while increasing the feed grade, concentrate grade, mill recovery, and revenue. In addition, ore sorting allows the modification of deposit geometallurgy in order to allow the creation of an optimal mill feed. This paper evaluates the

Optimization Problems With Concentration And Oscillation

The paper deals with optimal control problems for which minimizing (sub)sequences of controls do not converge weakly in L; 1;. For such problems, here governed by ordinary differential equations, the relaxed (generalized) solutions in terms of DiPerna-Majda measures are defined, correctness of the relaxation is shown and a numerical approximation is developed and tested on model examples.

Optimal operation and feedback control for complex

The proposed optimal operation control method in this paper has been applied to the roas- ting process undertaken by 22 shaft furnace in Jiugang Ore Concentration plant of China. It has been shown

Optimal Control of Beer Fermentation Process using POMODORO

In this paper an optimal control problem for the beer fermentation process is considered as a case study to demonstrate the applicability of the KULeuven/BioTeC Pomodoro toolkit. The objective is to maximize the ethanol concentration while penalizing the batch time. The concentrations of two by-products are constrained by a maximum value. Keywords: dynamic optimization; beer fermentation

Self-optimizing Grinding Control for Maximising

1/1/2009· The grinding process prepares the ore for the subsequent concentration step, which for sulphide base metal operations, is predominantly flotation. The performance of the concentration (flotation) is very much determined by the feed characteristics of the slurry coming from grinding. The valuable minerals recovery process in flotation is very much influenced by the grinding process and

Optimal operation and feedback control for complex

29/3/2009· The proposed optimal operation control method in this paper has been applied to the roasting process undertaken by 22 shaft furnace in Jiugang Ore Concentration plant of China. It has been shown that the MTRR is controlled to the rational range around the target value, with a result of 2% increase; the equipment's operation ratio is enhanced by 2.98%, resulting in a raise of 0.57% in

Increasing Energy Efficiency and Productivity of the

stages of ore comminution, where optimal levels for the enrichment particles’ sizes are obtained. Even though these ubiquitous machines of relatively simple construction have been subjected to extensive studies, the industry still struggles with very low energy efficiency of the comminution process. Moreover, obtaining an optimal size for the grinding product particles is crucial for the

Driving Productivity by Increasing Feed Quality CRC ORE

used to control accept/reject tonnages and resulting upgrades. While Grade Engineering® does not create ‘new metal’, outcomes can improve resource to reserve conversion by potentially separating economic parcels of ore from mineralised waste. The concept of coarse separation or pre-concentration is not new and has been practiced from the beginning of mining as hand picking (Wills and

Technical Review and Evaluation of Ore Sorting

By means of pre-concentration, ore sorting aims to separate the barren material from the valuable ore to reduce energy consumption and tailings generation, while increasing the feed grade, concentrate grade, mill recovery, and revenue. In addition, ore sorting allows the modification of deposit geometallurgy in order to allow the creation of an optimal mill feed. This paper evaluates the

Self-optimizing Grinding Control for Maximising

1/1/2009· The grinding process prepares the ore for the subsequent concentration step, which for sulphide base metal operations, is predominantly flotation. The performance of the concentration (flotation) is very much determined by the feed characteristics of the slurry coming from grinding. The valuable minerals recovery process in flotation is very much influenced by the grinding process and

Increasing Energy Efficiency and Productivity of the

stages of ore comminution, where optimal levels for the enrichment particles’ sizes are obtained. Even though these ubiquitous machines of relatively simple construction have been subjected to extensive studies, the industry still struggles with very low energy efficiency of the comminution process. Moreover, obtaining an optimal size for the grinding product particles is crucial for the

Optimal operation and feedback control for complex

29/3/2009· The proposed optimal operation control method in this paper has been applied to the roasting process undertaken by 22 shaft furnace in Jiugang Ore Concentration plant of China. It has been shown that the MTRR is controlled to the rational range around the target value, with a result of 2% increase; the equipment's operation ratio is enhanced by 2.98%, resulting in a raise of 0.57% in

Optimal Control of Beer Fermentation Process using POMODORO

In this paper an optimal control problem for the beer fermentation process is considered as a case study to demonstrate the applicability of the KULeuven/BioTeC Pomodoro toolkit. The objective is to maximize the ethanol concentration while penalizing the batch time. The concentrations of two by-products are constrained by a maximum value. Keywords: dynamic optimization; beer fermentation

Optimal control for continuous bauxite grinding

Considering the reduction of power consumption of ball-mill,we propose a multi-objective multi-model predictive control for the continuous grinding process of bauxite with bauxite ores coming from different mine sources and with different qualities.In this method,we first build the state-space concentration-predictive model and the finenessprediction model based on the weighted multi-model of

Valves for copper concentrates production Neles

Each ore deposit is unique in its concentration and mineral composition. Therefore, the most economical plant flowsheet varies from site to site. Even though the unit processes might be site-specific, the principle for the processing of sulfide ore remains the same.

OPTIMAL CONTROL OF A CSTR PROCESS

In this paper, the fuzzy optimal control methodology is applied to the design of the feedback loops of an Exothermic Continuous Stirred Tank Reactor system. The objective of design process is to find an optimal structure/gains of the Robust and Optimal Takagi Sugeno Fuzzy Controller (ROFLC). The control signal thus obtained will minimize a performance index, which is a function of the tracking

Mining Power System Schneider Electric

Ore concentration Grinding mills, conveyors, flotation, de-watering 26 MVA 66% . Water plant Pumps . 2 MVA 5% Concentrate handling . Stacker /reclaimer 3 MVA 7% .

Driving Productivity by Increasing Feed Quality CRC ORE

used to control accept/reject tonnages and resulting upgrades. While Grade Engineering® does not create ‘new metal’, outcomes can improve resource to reserve conversion by potentially separating economic parcels of ore from mineralised waste. The concept of coarse separation or pre-concentration is not new and has been practiced from the beginning of mining as hand picking (Wills and

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