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sag mill control fl

Digital Control Lab

Digital Control Lab is a company that designs systems to improve the efficiency of cement and mining plants. Contact us today.

fl minerals fuller traylor sag sag mills -

Ball Mill or SAG Mill FL Minerals has operating experience with all the above, KOCH, MVT, RAHCO, FULLER-TRAYLOR and MÖLLER getting together under the FL umbrella FL & Co A/S is a global organisation. Read More. MINERAL PROCESSING - FL wins $65M contracts for,

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SAG Mill Control at Northparkes Final

SAG Mill Control at Northparkes Page: 1 SAG Mill Control at Northparkes Mines (Not So Hard After All) A. J. Thornton, Principal Process Control Engineer1 Tom Pethybridge, Production Superintendent – OPD2 Tom Rivett, Process Control Engineer2 Richard Dunn, Metallurgical Superintendent2 1.

SAG Mill Control: It Shouldn't be that Hard | E & MJ

In this case, mill speed is the primary manipulated variable used to control mill load. While there is no generic control strategy for SAG milling there is a considerable amount of reusable engineering. In contrast to an expert or black box system, the control loop approach was built using standard blocks, connected as shown.

White paper, September 2015 SmartMill™: Exceed your ...

a semi-autogenous (SAG) mill. AG/SAG mills are often used as the first stage in a two- or multiple-stage grinding process, where the second stage is carried out by the ball mill, but they can also be used as a one-stage grinder. The absence of, or ... Mill application features control.

Listening to SAG Mill Noise Pays Off for Pueblo Viejo | E & MJ

According to the authors, through continuous improvement and the use of advanced technologies like SmartEar, Pueblo Viejo—a joint venture between Barrick (60%) and Goldcorp (40%)—is improving the control and operation of its SAG mill, resulting in reduced liner wear, more efficient mill performance and optimized energy consumption.

Model Predictive Control for SAG Milling in Minerals ...

Model Predictive Control for SAG Milling in Minerals Processing | 5 Model Predictive Control on a SAG Mill and Ball Mills The solution for the SAG Mill is an adaptive controller which controls mill load using direct mill weight measurement or indirectly from bearing oil pressure.

Barrick Digital team applies MillSlicer tech to SAG mill ...

Barrick Digital team applies MillSlicer tech to SAG mill at Pueblo Viejo Posted by Paul Moore on 21st February 2018 Pueblo Viejo's semi-autogenous grinding (SAG) mill has hit record throughput levels over the past four months following the implementation of a digital solution last year.

SAG Conference Video - YouTube

Dec 19, 2011· See which type of cement mill FL will present at the SAG Conference, by watching this video.

Model predictive control of semiautogenous mills (SAG ...

The controller response showed a suitable control behavior independent of the noisy multivariable modification. Highlights • MIMO control system design based on the MPC strategy for a SAG mill. • Control action exhibit an additional effort in the water as manipulated variable.


has been introduced to the minerals and mining industry for optimal SAG mill control using vibration and digital signal processing techniques in Australia, through a joint effort by Process IQ and Digital Control Lab. Digital Control Lab, based in Florida US. has over 15 years expertise in signal processing,

A Neural Network Model for SAG Mill Control -

is the SAG Mill 1 Bearing pressure (described later in Figure 3). These fuzzy belief values are used as inputs to 80 rules, which describe the knowledge of the mill's control strategy. In addition to the attributes used by the expert system, the neural network also …

Grinding in Ball Mills: Modeling and Process Control

commonly used control strategies are analyzed and discussed. Keywords: Ball mills, grinding circuit, process control. I. Introduction Grinding in ball mills is an important technological process applied to reduce the size of particles which may have different nature and a wide diversity of physical, mechanical and chemical characteristics.

SAG Mill Process Control - Grinding & Classification ...

If the SAG mill is not intended to be the rate-limiting step in a process plant, then it is best to adjust the SAG load (and power) to hold a constant tonnage to satisfy another constraint elsewhere. Underground mines are an example: the hoisting capacity of the mine shaft is the rate-limiting step in the process, and the SAG mill must adapt to ...

Autogenous and Semi-Autogenous Mills

AG/SAG mills are normally used to grind run-offmine ore or primary crusher product. Feed size to the mill is limited to that size which can be practically conveyed and introduced into the mill. The mill product can either be finished size ready for processing, or an intermediate size ready for final grinding in a ball mill, pebble mill…

(PDF) SAG mill circuit optimisation at Ernest Henry Mining

PDF | On Sep 1, 2001, S. Strohmayr and others published SAG mill circuit optimisation at Ernest Henry Mining

Advantages of SER drives for SAG mills |

Dec 19, 2014· Advantages of SER drives for SAG mills Friday, December 19, 2014 For large mills requiring variable speed, the wound rotor motor and SER drive are economical for a total rating of approximately 2MW to 16MW.


Ball mill Hydrocyclone SAG mill MillSense RockSense ACT GRINDING OPTIMIZATION IMPROVES PRODUCTIVITY Outotec ACT – optimize and stabilize processes Outotec ACT is an advanced process control platform for building customized control applications that enable you to stabilize and optimize everything from single-unit processes to plant-wide ...

PAI SAG Mill Training - YouTube

Jan 08, 2016· In this training module, we'll cover the workings of a semi-autogenous grinding mill, or SAG mill, that's designed to be the first stage of a grinding circuit. Ore that's crushed in a primary ...

BrainWave: Control solutions for SAG mills - ANDRITZ

BrainWave Control solutions for SAG mills. 02 The solution: Measure. Control. And profit. BrainWave SAG mill is a unique control package using patented model-based predictive adaptive control technology. It is well known within the mining industry that effective grinding in a SAG mill depends


Currently, the SAG mill expert control system is operational roughly 90% of the time with excellent results. Below is a very basic overview of the strategies and typical results we have seen. Objectives. Protect the SAG mill; Maintain smooth and stable operation of the SAG mill (SAG mill optimization) Maximize SAG mill tonnage

SAG Mill Grinding Circuit Design

SAG and AG Mills operate by lifting ore/grinding media and dropping it on the operating bed of the mill charge. High impacts from lifting ore and media promote impact breakage which is the primary mechanism for size reduction in the mill.


The key mill performance data is summarized in the following table. Clearly, the KnowledgeScape adaptive grinding control with has significant financial benefits. Using the KnowledgeScape adaptive SAG mill expert system on the grinding circuit, operations staff achieved a 2.8% increase in feed rate.

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paper presents a technical evaluation and practical experience of ... and converters control strategies, reactive power, and harmonics injected into the network are important issues to be addressed in ... LCI SAG mill drive are shown in Figs. 4 and 5. The drive is

Optimization using model predictive control in mining

• Maximize SAG mill fill • Control SAG mill feed density • Control hydrocyclone feed density • Control P80 (product size) • Maintain sump level within range • Maintain hydrocyclone inlet pressure below limits • Maintain circulating pump current below limits • Maintain SAG mill bearing pressure below limits