### Digital -

Protect your SAG mill from costly damage for better profitability. AudioMill™ is a sound spectrum analysis tool for SAG mills used in primary grinding stages. A sensor measures the impacts of ball on shell, and by maintaining them in favorable range, it becomes part of an advanced control solution.

### SAG Mill Optimization using Model Predictive Control

Control of -SemiAutogenous Grinding(SAG) mill weight is an example of an important process that exhibits many of these aspects. Maintaining the SAG mill weight at the optimum value is critical for achieving maximum grind rate efficiency and mill production (Powell, M.S., van der Westhuizen, A.P., & Mainza, A.N. 2009).

### Case story: Monitoring noise to prevent mill damage

The Manta Controls Advanced Control System, called the SAG Cube, automatically monitors and controls a SAG Mill, keeping track of critical process variables impacting mill throughput. For most sites, one hour of operation provides a revenue between AUD$ 20,000 per hour up to or greater than AUD$ 100,000 per hour.

### 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.

### Geomagic Control X - SAG Mill Volume in Sections - YouTube

Feb 13, 2018· Learn how to calculate a Volume at different heights using CONTROL X for Sag and Ball Mills using View Clip and Enclosed Volume option. More information at: [email protected]

### Technical Program - SAG Conference

Sep 23, 2019· Advanced Control Optimization and Digital Twin in Comminution for Better Mineral Throughput and Size Classification, Nazari & Carricajo. 72. 10:45. Sound-based Advanced Process Control of a SAG Mill at Sumitomo Minera San Cristobal, King, Vidal, & McKay. 73. 11:00

### 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

### Grinding Mill Control - Grinding & Classification Circuits ...

Having used weight control and power draw to control Mill operations, using Mill Sound to run a mill was a new one for me. I found it unusual and not that effective.Has anyone else used that style of operation control to run their mill and did you find it more effective than the more traditional way

### Mill (grinding) - Wikipedia

SAG is an acronym for semi-autogenous grinding. SAG mills are autogenous mills that also use grinding balls like a ball mill. A SAG mill is usually a primary or first stage grinder. SAG mills use a ball charge of 8 to 21%. The largest SAG mill is 42' (12.8m) in diameter, powered by a 28 MW (38,000 HP) motor.

### Geomagic Control X - SAG Mill Volume in Sections - YouTube

May 23, 2018· Manny Pacquiao and Keith Thurman face off before their massive title fight | WEIGH-INS | PBC ON FOX - Duration: 6:39. PBC ON FOX 3,726,118 views. New

### I N N O V A T I O N [ X ]

Advanced Control of SAG Mill Grinding Circuits. Sound is assumed to be a measure of the breakage conditions at the impact zone of balls (and to a lesser extent, rock) in the mill. High sound levels occur when the ball strike point distribution is high on the liner wall and not overlapping the mill charge toe. Low sound levels occur when the ...

### SAG Mill - Semi-Autogenous Grinding Mill

The SAG mill and all other grinding equipment is remotely monitored and controlled via computer from a central control room. The control room operator watches four video terminals and a CCTV monitor to keep track of critical process variables impacting mill throughput.

### SAG Mill Grinding Circuit Design

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.

### Fuzzy Logic Control On a SAG Mill - ScienceDirect

San Diego, California, USA Fuzzy Logic Control On a SAG Mill Michel Ruel Optimization and Advanced Control (Top Control), BBA Inc., Canada CAN (Tel: 418-657-5901; e-mail: [email protected] bba.ca). Abstract: The paper will present a case where fuzzy logic was the logical choice to improve performances of a semi-autogenous grinding (SAG) mill.

### Geomagic Design X - Volume Calculation SAG Mill - YouTube

Jan 30, 2018· This video shows how to calculate Volume of a SAG Mill using GEOMAGIC DESIGN X in under 6 minutes from start to finish. Alignment: Local Based on Pick Point ...

### OUTOTEC AUTOMATION SOLUTIONS FOR GRINDING .

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 ...

### Using Fuzzy Control to Optimize SAG Mill Production

Using Fuzzy Control to Optimize SAG Mill Production Lynn B. Hales, KnowledgeScape Systems, a Division of EIMCO, Salt Lake City, UTAH ... fuzzy SAG mill control system. Although, while relatively unknown, fuzzy ... so sound is often used to control the mill speed. Besides sound, the mill bearing pressure can also be used to control the mill ...

### SAG Conference 2019 Agenda - Final

Sound-based Advanced Process Control of a SAG Mill at Sumitomo Minera San Cristobal, King, Vidal, & McKay 11:00 Pre-Crushing of SAG Feed: Friend or Foe, Starkey, Reeves, & Senchenko The Impact of Expanding Screening Capacity of the Kansanshi SAG Mill Discharge on the Overall Circuit Performance, Phiri, Ngosa, Chongo, Scagliotta, & Heath

### How to Control a SAG Grinding Mill Circuit

The operator is separated from the mill discharge by a sump or screen 5 or 6 meters across. He is fortunate if he can even see what is coming out of the mill, let alone get a reasonable sample. The sound and feel of the mill has changed. The ampere meter on the drive motor is probably a hundred meters away in a control room.

### Advanced Controller for Grinding Mills: Results from a ...

Advanced Controller for Grinding Mills: Results from a Ball Mill Circuit in a Copper Concentrator Anoop Mathur, Sujit Gaikwad, ... upsets such as mill spills and/or power excursions in SAG mills, "centrifuging" in ball mills, ... MILL CONTROL: BALL MILL CONTROL EXAMPLE

### Performance enhancement tools for grinding mills - SAIMM

The load level and composition by percentage volume of total mill volume may be determined through the use of mill noise (see Figure 14), process data and software based on appropriate algorithms. This method of determining mill load composition, together with the software developed, has been referred to in this paper as the SAG Analyzer2. Other

### Increasing Productivity Without Capital Expenditure

including: (a) enhanced SAG mill load control, (b) rules-based supervisory control, (c) model-based optimizer, and (d) softsensors for SAG mill charge/volume, cyclone transfer densities, cyclone over-flow and under-flow cut size, etc.. 1 The Supervisory Control System was fully implemented in Matrikon™ Control Performance Optimizer.

### TECHNICAL NOTES 8 GRINDING R. P. King - Mineral Tech

TECHNICAL NOTES 8 GRINDING R. P. King. 8-2 &ROOLVLRQ 5ROOLQJ ZLWK QLSSLQJ ... dimensions of the lifters control the tumbling action of the media. ... Let Jt be the fraction of the mill volume that is occupied by the total charge, Jb the fraction of the mill volume that

### Control SAG Mill sound detection - Grinding ...

Grinding & Classification Circuits. ... Sound control of a SAG mill is a subject that needs to be talked about more. I have been working on mill control, using microphones, for a good part of my career and I can say with much confidence that it works. Where I work now, Minera San Cristobal in Bolivia, we use sound control on both the SAG and ...

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