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Optimizing Your Sag Mill Operation

Sag Mill Optimization Using Model Predictive Control

Control of -SemiAutogenous GrindingSAG 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., amp Mainza, A.N. 2009.Control of -SemiAutogenous GrindingSAG 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., amp Mainza, A.N. 2009.providing a 25 pebble circulating load. The current SAG Mill operation is still rated 13.4 MW power at draw however has been operated at higher ball charges up to 18 and with 133 mm diameter grinding media. The Ball Mill was originally designed for 7,000 kW power draw, a with a maximum ball charge

Sag Mill End Liners Structural And Material Optimization

Jul 08, 2020 The Old SAG Mill End Liners Structure. The structure of the discharge end liner plate of the optimized semi-autogenous mill is shown in Fig. 1, which is mainly composed of pulp lifter and grid plate, as shown in Fig. 2. It can be seen that before optimization, the lifting bars of pulp lifter and lattice plate are radial straight lines, forming ...Jul 08, 2020 The Old SAG Mill End Liners Structure. The structure of the discharge end liner plate of the optimized semi-autogenous mill is shown in Fig. 1, which is mainly composed of pulp lifter and grid plate, as shown in Fig. 2. It can be seen that before optimization, the lifting bars of pulp lifter and lattice plate are radial straight lines, forming ...The performance of tumbling mills is sensitive to the volumetric mill filling which influences grinding media wear rates, throughput, power draw, and product grind size from the circuit. Each of these performance parameters peaks at different filling values. In order to contin-uously optimize mill operation, it is vital to

Noise Monitoring That Prevents Mill Damage Br252el Amp Kj230r

Protecting and Optimizing Mills The main benefits of this type of reliable SAG mill monitoring are accurate and repeatable decibel signals at the various frequencies information that is used to protect the mills. The next phase of the project is to provide measurements that can help customers operate a SAG or AG mill optimally.Protecting and Optimizing Mills The main benefits of this type of reliable SAG mill monitoring are accurate and repeatable decibel signals at the various frequencies information that is used to protect the mills. The next phase of the project is to provide measurements that can help customers operate a SAG or AG mill optimally.Jan 04, 2013 Optimizing your SAG mill operation International Mining. Sanjeev Latchireddi, Chief Process Engineer Grinding Americas, Outokumpu Technology, looks at the shift from ball mills to SAG mills. Nowadays, the more More detailed

Brainwave Control Solutions For Mining Operations

BrainWave SAG mill BrainWave is a proven control system that stabilizes the operation of the SAG mill, resulting in improved operation and in-creased production. BrainWave SAG mill is a unique control pack - age using patented model-based predictive adaptive control technology. It is well known within the mining industry that effectiveBrainWave SAG mill BrainWave is a proven control system that stabilizes the operation of the SAG mill, resulting in improved operation and in-creased production. BrainWave SAG mill is a unique control pack - age using patented model-based predictive adaptive control technology. It is well known within the mining industry that effectiveYour mill might actually be able to run faster than expected, but you can only know this for sure if you try. Testing is not easy with complex operations. Say for example your team runs a test ...

Grinding Circuit Optimisation To Increase Throughput And

Keeps the mill rolling. LoadIQ utilises our mill scanner smart sensor technology to determine the optimum mill load, increasing throughput by 3 6, with some even greater than a 10 increase in tonnage. Achieving long-term stability in grinding circuits. If your grinding circuit operation is unstable, the productivity, quality and ...Keeps the mill rolling. LoadIQ utilises our mill scanner smart sensor technology to determine the optimum mill load, increasing throughput by 3 6, with some even greater than a 10 increase in tonnage. Achieving long-term stability in grinding circuits. If your grinding circuit operation is unstable, the productivity, quality and ...Motor behavior during normal operation with a loaded mill The result is the design of a Gearless Mill Drive motor for a 42ft Grinding Mill providing up to 35MW of power. Evolution is still the main GMD design philosophy, but realistic and proven computer models help to look beyond experience, where testing is impossible.

Grinding Circuit Improvements At Gold Fields Granny

To optimize your website experience, please use Chrome, Firefox, Edge, or Safari. ... Mining Operation Assistance ... This allowed them to reduce the SAG mill media size and operate at a slower speed without the rock load building and destabilising the mill. In turn, this provided spare mill capacity which can be used to assist the ball mill.To optimize your website experience, please use Chrome, Firefox, Edge, or Safari. ... Mining Operation Assistance ... This allowed them to reduce the SAG mill media size and operate at a slower speed without the rock load building and destabilising the mill. In turn, this provided spare mill capacity which can be used to assist the ball mill.New Human Machine Interface - RMD Cockpit. With the RMD plus solution, operations and maintenance activities are fully optimized with the newly developed Human Machine Interface RMDcockpit.. Based on ABBs 800xA platform, the RMDcockpit is a specific mill application tool comprised of a touch screen panel allowing full access to the main parameters of the drive system as well as to the ...

Increasing Productivity Without Capital Expenditure

2. SAG mill rules evaluate the SAG mill and ball mills weights and power draws and adjust accordingly. 3. Ball mill rules increase or decrease feeds based on weights and power draws. Effectively the rules base acts as an envelope around the model-based optimizer. It acts as a check on outputs before they are2. SAG mill rules evaluate the SAG mill and ball mills weights and power draws and adjust accordingly. 3. Ball mill rules increase or decrease feeds based on weights and power draws. Effectively the rules base acts as an envelope around the model-based optimizer. It acts as a check on outputs before they areDec 06, 2018 Likewise, changes to the mill lifter design andor its operation can result in reduced power draw and therefore energy costs. As SAG and other types of mills are power hungry, even a marginal reduction in power draw can translate to massive energy savings.

Online Sag Mill Pulse Measurement And Optimization

Jun 24, 2006 A 35 decrease in the SAG mill power draw from 3,908 HP to 2,526 HP 2,915 kW to 1,884 kW was recorded. This equates to a 47 decrease in SAG unit energy consumption from 8.98 kWhton to 4.74 kWhton. A 11 decrease in SAG mill speed wasJun 24, 2006 A 35 decrease in the SAG mill power draw from 3,908 HP to 2,526 HP 2,915 kW to 1,884 kW was recorded. This equates to a 47 decrease in SAG unit energy consumption from 8.98 kWhton to 4.74 kWhton. A 11 decrease in SAG mill speed wasPredictive Optimization of SAG Mill Wear Using Rocky Rocky DEM helps predict liner wear and fine-tuning optimum conditions for SAG mill operation . Share this No one in industry is happy with downtime losses incurred due to a machine that wont operate. In the

Sagwise Total Process Control The Key To Efficient Sag

happening inside your SAG mill and with the generated mill load. SAGwise evolved from a clear need to overcome the obstacles of traditional thinking and implement innovative, intelligent, respon-sive technology. your SAG mill. Output signals tied to the control system make the mill react to the acoustic data, and other existing SAG millhappening inside your SAG mill and with the generated mill load. SAGwise evolved from a clear need to overcome the obstacles of traditional thinking and implement innovative, intelligent, respon-sive technology. your SAG mill. Output signals tied to the control system make the mill react to the acoustic data, and other existing SAG millVANCOUVER 2015 SOSSEGO SAG MILL 10 YEARS OF OPERATION AND OPTIMIZATIONS A. M. Mendon a1, D. Luiz1, M. Souza1, G. Oliveira1, H. Delboni J nior2, and M. G. Bergerman3 1 Vale S.A. Mina do Sossego, SN Vila do Sossego Cana dos Caraj s, Brazil 68537 00 2 HDA Servi os Ltda., Professor - University of S o Paulo Av. Prof. Mello Moraes, 2373 S o Paulo, Brazil 05508-030 3

Sag Mill Control It Shouldnt Be That Hard E Amp Mj

Optimize underperforming assets and remove the need for capital expenditure Optimal control of the SAG mill can be achieved by using existing DCS or PLC. It is commonly assumed SAG mill control can only be successfully implemented using black-box solutions this is just not true.Optimize underperforming assets and remove the need for capital expenditure Optimal control of the SAG mill can be achieved by using existing DCS or PLC. It is commonly assumed SAG mill control can only be successfully implemented using black-box solutions this is just not true.Mar 20, 2019 The automated approach Modeling out your operations. Another approach is to build out an integrated model that incorporates each component of your milling operations including crushers, grinders, SAG mills, flotation circuits, and their interactions. By modeling out constraints and tradeoffs between different components, this type of ...

Grinding And Flotation Optimization Using Operational

Jan 11, 2019 The online estimation of the particle size distribution shape can be used to tailor the SAG mill feed by manipulating the feeders. The particle size distribution shape can be used to model metal flotation recovery and optimize the water additions to the grinding and flotation circuits in order to improve recovery and operating profit.Jan 11, 2019 The online estimation of the particle size distribution shape can be used to tailor the SAG mill feed by manipulating the feeders. The particle size distribution shape can be used to model metal flotation recovery and optimize the water additions to the grinding and flotation circuits in order to improve recovery and operating profit.SAG Mill Discharge. Controlling the feed and discharge of a mill is mostly a stabilisation exercise you need to be able to quickly and accurately control the mill feed rate. If the mill feed setpoint is changed, then the actual feed rate needs to stabilise at the new target in a short period of time. The feed rate setpoint can then be tied ...

Sag Mill Ball Sizing Grinding Amp Classification Circuits

If you have done proper test work and assumed your Work index is as you provided above quickly I can estimate that your SAG throughput is around 517 th and if the total of mill charge is 25 of the total mill volume, then you can assume the following assumption .i.e. mass proportion of grinding body to ore be 15 steel balls and 10 ore 1 ...If you have done proper test work and assumed your Work index is as you provided above quickly I can estimate that your SAG throughput is around 517 th and if the total of mill charge is 25 of the total mill volume, then you can assume the following assumption .i.e. mass proportion of grinding body to ore be 15 steel balls and 10 ore 1 ...Unique in the industry, Metso Outotec MillMapper allows your maintenance and operational personnel to extend liner life cycles, optimize liner design, prevent liner failures, optimize throughput, and improve the performance of your mill. The MillMapper captures wear data on the entire mill

Increase Throughput And Capacity In Sag Mills

Optimising the capacity of your SAG mill is crucial to avoiding downtime and liner wear and damage. With variances in mill ore feed rate, mill speed and slurry density, critical impacts can occur in your SAG mill. The speed at which these variances are adjusted for is thus crucial for minimizing damage and optimizing liner life.Optimising the capacity of your SAG mill is crucial to avoiding downtime and liner wear and damage. With variances in mill ore feed rate, mill speed and slurry density, critical impacts can occur in your SAG mill. The speed at which these variances are adjusted for is thus crucial for minimizing damage and optimizing liner life.The final plan was to increase the ball charge in the SAG and ball mill to 10 v v and 27 v v, respectively set the upper limit of the operating power in the ball mill to 5800 kW use a TRIO TC Series crusher without a power-feed ratecontrolling device, but with a feed bin to crush pebbles for recirculation back to the SAG mill feed ...

Comminution Circuits For Gold Ore Processing Sciencedirect

Jan 01, 2005 SAG Mill Configuration and Operation. Over the past few years, there have been a number of focus areas in optimizing SAG mill operations. A major evolution in mill-shell lifter design has occurred, and much work has been done in the area of pulp lifters and slurry discharge.Jan 01, 2005 SAG Mill Configuration and Operation. Over the past few years, there have been a number of focus areas in optimizing SAG mill operations. A major evolution in mill-shell lifter design has occurred, and much work has been done in the area of pulp lifters and slurry discharge.SAG Mill ACE Supervisory optimization BrainWave MPC Metris Digital Twin Metris risk monitoring Metris data analytics PRODUCT SAG MILL ACE Antofagasta PLCs Minera Los Pelambres has one of the largest open pit mines in Chile and produces approxi-mately 320,000 tonnes of copper concentrate annually. When copper prices are high, producers look ...

Expande Scrap Measurement In Sag Mill Vibrating Screens

Jul 15, 2021 Scrap measurement in SAG mill vibrating screens Aim and scope Solutions are sought to quantify the mass, determine the size and shape of the grinding media that are discharged into the SAG mill through its classification system vibrating screen.Jul 15, 2021 Scrap measurement in SAG mill vibrating screens Aim and scope Solutions are sought to quantify the mass, determine the size and shape of the grinding media that are discharged into the SAG mill through its classification system vibrating screen.Feb 10, 2021 Artificial intelligence applied to mill optimization Variability controlled with artificial intelligence AI software. A digital twin-based AI optimizer was deployed to run alongside advanced process controllers APCs. Results include a 1 increase in mill production throughput with annual topline impact of 3-4 million for the mine.

Advance Sustainability Emerson Us

In mining operations, the comminution process reduces mined solid materials through crushing, grinding and other means. SAG and Ball mills are one of the most critical pieces of equipment for the process. Mining operators need to optimize grinding mill performance, and reliability toIn mining operations, the comminution process reduces mined solid materials through crushing, grinding and other means. SAG and Ball mills are one of the most critical pieces of equipment for the process. Mining operators need to optimize grinding mill performance, and reliability toMar 21, 2007 It is imperative to ensure the efficient removal of both slurry and coarse pebbles critical size in order to ensure the efficient operation of AGSAG mills. Elimination of the above mentioned material transport problems will allow the mill to respond truly in terms of power draw for changes in mill load which depends on feed ore characteristics.

Optimizing Your Sag Mill Mining Surplus

Mar 02, 2010 As the heart of the plant could be viewed as the millinggrinding area, one of the key steps in plant optimisation is, therefore, ensuring the mill is operating properly. In the past, when primary, secondary and tertiary crushers fed material directly to large ball mills, the energy efficiency of the concentrator was determined for the most part by the ball mill operation, whereas now the energy efficiency of a plant often rests largely on the semiautogenous grinding SAG mill operation.Mar 02, 2010 As the heart of the plant could be viewed as the millinggrinding area, one of the key steps in plant optimisation is, therefore, ensuring the mill is operating properly. In the past, when primary, secondary and tertiary crushers fed material directly to large ball mills, the energy efficiency of the concentrator was determined for the most part by the ball mill operation, whereas now the energy efficiency of a plant often rests largely on the semiautogenous grinding SAG mill operation.Mar 13, 2018 Obviously, optimizing liner design along with operating processes can result in significant savings. To achieve SAG mill equipment optimization, you should combine practical experience with pass-or-fail evaluation studies that modulate project resources or operational conditions. We do not recommend that you carry out a project only with in-the-field trial- and-error-testing.

Optimization Of A Sag Mill Energy System Integrating Rock

Jul 01, 2019 An optimization is carried out to minimize the yearly cost of energy for the operation of the SAG mill. This cost includes the energy consumption cost in kWh and the capital cost for the PV-BESS infrastructure, prorated over the life of the battery system, accounting for the discount rate through an annuity factor Pamparana et al. 2019a, b. The energy requirements are defined by the SAG mill consumption, which in turn depends on theJul 01, 2019 An optimization is carried out to minimize the yearly cost of energy for the operation of the SAG mill. This cost includes the energy consumption cost in kWh and the capital cost for the PV-BESS infrastructure, prorated over the life of the battery system, accounting for the discount rate through an annuity factor Pamparana et al. 2019a, b. The energy requirements are defined by the SAG mill consumption, which in turn depends on the