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Products. The Manta Cube ® system can be used to control various processing units and has been successfully used for SAG Mill Control Ball Mill Control Flotation Control Thickener Control CCD Control and more. The Manta Cube ® utilises advanced control fundamentals including constraint control feed forward control expert system control

Chat Online### SmartMillGrinding ABB

Combine ABB s variable-speed drive system with advanced process controlABB Ability™ Expert Optimizer for grindingto provide maximum mill control. It can be applied to new or existing AG SAG and ball mills powered by either ring-geared mill drives (RMD) or gearless mill drives (GMD). This solution was designed to control stabilize and

Chat Online### What s the Difference Between SAG Mill and Ball Mill

2019-11-26 · The biggest characteristic of the sag mill is that the crushing ratio is large. The particle size of the materials to be ground is 300 400mm sometimes even larger and the minimum particle size of the materials to be discharged can reach 0.1 mm. The calculation shows that the crushing ratio can reach 3000 4000 while the ball mill s

Chat Online### AN OVERVIEW OF SINGLE STAGE AUTOGENOUS AND

2014-10-1 · 3 SAG mill (815 ball charge) Variable competency ore 4 High ball charge SAG mill (15 to 25 ball charge) Incompetent ore 5 Low ball charge SAG mill high mill speed. (4 ball charge 90 Nc) A cross between AG and SAG for competent abrasive ores. As typically operated in RSA. 6 SAG mill (configurations 3 and 5 ) with recycle crusher

Chat Online### SmartMillGrinding ABB

Combine ABB s variable-speed drive system with advanced process controlABB Ability™ Expert Optimizer for grindingto provide maximum mill control. It can be applied to new or existing AG SAG and ball mills powered by either ring-geared mill drives (RMD) or gearless mill drives (GMD). This solution was designed to control stabilize and

Chat Online### Model predictive control of semiautogenous mills (sag

2014-10-1 · 2.4. Multivariable predictive control. In the present work a three-input-three-output scheme of control was performed. The total water feed to the mill (the feed water flow rate was added to the dilution water flow rate so they could be specified separately but for the SAG mill model the total water content was the variable of interest) the fresh ore feed rate and the mill rotation speed

Chat Online### JME

2021-5-27 · is the SAG mill produces about 10.76 more than the ball mill in the final product. The average consumed energy at SAG and ball mills to produce one ton of final product was 23.16 kWh/t and 36.05 kWh/t respectively. Thus the ball mill consumes 12.89 kWh/t more energy than the SAG mill in producing the final product. The

Chat Online### Integrated advanced process control with a sag mill

2020-4-1 · (EGL) SAG mill driven by a 24 000 kW gearless drive. The SAG mill feeds two FL ball mills the largest volumetric capacity SAG mills in the world and represented the first 40 ft. SAG mill in Peru (Garcia Villanueva 2013 1 ). Antapaccay s flow sheet is shown in Figure 1 below. Figure 2

Chat Online### Electronic ear in SAG mill Automation Control

2004-8-25 · We have an application in a SAG Mill where we have installed an electronic ear in order to listen the noise produced by the balls falling to the bottom of the mill. Our idea is to convert the amplitude and frequency of noise to a 4-20mA signal (or something else) in order to determine if the ball is crushing the mineral or the mill lining.

Chat Online### ProductsManta Controls

The Manta Cube ® system can be used to control various processing units and has been successfully used for SAG Mill Control Ball Mill Control Flotation Control Thickener Control CCD Control and more.

Chat Online### Grinding control strategy on the conventional milling

2009-8-27 · the control loop will attempt to add water to Cyclone 1 sump to achieve a particle size of 15 300 µm. If the hardness of the ore increases the particle size in the mill discharge from ball mill 1 will increase. With the same water addition to sump 1 the particle size of Cyclone 1 overflow will increase. This will decrease the ratio and hence

Chat Online### Taking Control of the Mill Feed R2Orway

2014-10-1 · The 4.27 Ø m x 12.94 m EGL secondary ball mill is fitted with a 4125 kW motor and operates in overflow configuration. Ball mill discharge slurry gravitates to the feed of the SAG mill discharge screen situated above the mill discharge hopper. In 2002 the grinding circuit became SAG mill limited by the competency of the mill feed. In

Chat Online### Modelling SAG milling power and specific energy

2017-12-14 · ondary ball milling. In these circuits the SAG mill is the largest energy consumer. In many engineering projects either a power equation and/or a speciﬁc energy equation are used for the designing of these mills but not always with acceptable results. In general these equations are used to predict power con-

Chat Online### Grinding control strategy on the conventional milling

2009-8-27 · the control loop will attempt to add water to Cyclone 1 sump to achieve a particle size of 15 300 µm. If the hardness of the ore increases the particle size in the mill discharge from ball mill 1 will increase. With the same water addition to sump 1 the particle size of Cyclone 1 overflow will increase. This will decrease the ratio and hence

Chat Online### Advanced Controller for Grinding Mills Results from a

2014-2-3 · MILL CONTROL BALL MILL CONTROL EXAMPLE Process Description The copper concentrator in Pinto Valley Arizona processes a 0.4 grade copper ore from a nearby open pit mine. The unit operations consisting of crushing grinding and flotation process about 65 000 tons of ore per day in six overflow ball mills.

Chat Online### PIT-TO-PLANT OPTIMISATION AT MORILA GOLD MINE

2015-8-31 · SAG mill. Trommel undersize is pumped from the mill sump to the cyclone cluster for classification. The coarse undersize exiting the cyclone is returned to a single 6 MW secondary ball mill operating in closed circuit. The pulp discharging the ball mill is combined in a common (to the SAG mill

Chat Online### Modelling SAG milling power and specific energy

2017-12-14 · ondary ball milling. In these circuits the SAG mill is the largest energy consumer. In many engineering projects either a power equation and/or a speciﬁc energy equation are used for the designing of these mills but not always with acceptable results. In general these equations are used to predict power con-

Chat Online### Unlock SAG mill capacity with process control optimization

The instrumentation installed on a SAG mill is integral to control. For example the mill load and noise sensors are instruments that provide essential information for an optimized SAG mill operation. Insufficient understanding of the ore characteristics and feed composition can result in an ineffective SAG mill

Chat Online### Mill Chargean overview ScienceDirect Topics

SAG mills of comparable size but containing say 10 ball charge (in addition to the rocks) normally operate between 70 and 75 of the critical speed. The ball-and-tube mill control system on the other hand uses feeder speed control for maintaining mill level control only and so the fuel flow control is achieved through control of the

Chat Online### YANACOCHA GOLD SINGLE STAGE SAG MILL DESIGN

was commissioned in March 2008 with a 32 x 32 EGL 16.5MW single stage SAG mill to process 5 million tonnes per annum high grade oxide Au/Ag ore. Operational control feed size distribution

Chat Online### 20150806 Survey Sample Grinding Circuits-GMG-ICE-v01

2020-9-24 · Grinding (AG) Semi-Autogenous Grinding (SAG) rod and ball mill circuits operating within the normal range of appli-cation. This guideline does not directly address analysis of crushing plants and fine grinding circuits but it is a useful reference for such endeavors. Applying power-based analysis techniques requires suf-

Chat Online### Taking Control of the Mill Feed R2Orway

2014-10-1 · The 4.27 Ø m x 12.94 m EGL secondary ball mill is fitted with a 4125 kW motor and operates in overflow configuration. Ball mill discharge slurry gravitates to the feed of the SAG mill discharge screen situated above the mill discharge hopper. In 2002 the grinding circuit became SAG mill limited by the competency of the mill feed. In

Chat Online### Operation of SAG Mills Principle Operation of Semi

2018-1-25 · The power draft of a SAG mill and its consequences are illustrated in Figure 2 wherein 5 days of operating data in a 32u14-ft SAG mill is plotted. The power draft of the mill is held between 6 and 7 MW whereas tons per hour (tph) of ore feed to the mill

Chat Online### ProductsManta Controls

The Manta Cube ® system can be used to control various processing units and has been successfully used for SAG Mill Control Ball Mill Control Flotation Control Thickener Control CCD Control and more.

Chat Online### Taking Control of the Mill Feed R2Orway

2014-10-1 · The 4.27 Ø m x 12.94 m EGL secondary ball mill is fitted with a 4125 kW motor and operates in overflow configuration. Ball mill discharge slurry gravitates to the feed of the SAG mill discharge screen situated above the mill discharge hopper. In 2002 the grinding circuit became SAG mill limited by the competency of the mill feed. In

Chat Online### Minerals Free Full-Text Optimizing Performance of SABC

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 rate–controlling device but with a feed bin) to crush pebbles for recirculation back to the SAG mill feed

Chat Online### MILLING CONTROL OPTIMISATION

2012-2-7 · Figures 8 and 9 on the right show results from a gold plant s SAG mill achieved with MillStar s Segregated Ore Feed Controller combined with the Power Optimiser • The standard deviation of the mill feed control is greatly reduced. • The cyclone feed is more stable allowing for consistent size separation and feed to downstream processes.

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