### SAG Mill Process Control - Grinding & Classification ...

In my experience, SAG Mills are normally variable speed, and Ball Mills are normally fixed speed. There are multiple ways to provide variable speed, the common ones are WRIM+LRS+SER or SCIM+VSD, the top of the range is gearless mill drives.

### Difference Between Sag Mill vs Ball Mill - mech4study

Oct 12, 2017 · The ball charge of a SAG mill is about 9% to 20%.This process takes place inside the large rotating drum of SAG mill which is filled with balls partially. Interior of the drum uses the lifting plates. These plates inside the drum are responsible for picking the grinding material up to fall down again throughout the rotations.

### Whats the Difference Between SAG Mill and Ball Mill ...

Nov 26, 2019 · The working principle of the self-grinding machine is basically the same as the ball mill, the biggest difference is that the sag grinding machine uses the crushed material inside the cylinder as the grinding medium, the material constantly impacts and grinding to gradually pulverize.

### Sag And Ball Mill Controls- Jaw crusher ball mill Mining ...

Where i work now minera san cristobal in bolivia we use sound control on both the sag and ball mills the result of this control is a 25 increase in throughput over the plant design with a 10 reduction in energy consumption the mill is more efficient the mill control manipulates the feed rate and mill speed depending on ore and liner. More Details

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

Where I work now, Minera San Cristobal in Bolivia, we use sound control on both the SAG and Ball Mills. The result of this control is a 25% increase in throughput, over the plant design, with a 10% reduction in energy consumption; the mill is more efficient. The mill control manipulates the feed rate and mill speed depending on ore and liner conditions. Liner wear has improved and ball consumption …

### Autogenous & Semi-Autogenous Grinding Circuits

Table of Contents Autogenous Grinding CircuitsSAG vs Ball Mill AdvantagesAG & SAG Mill Grinding Compared – Which is BestTesting for Product Size Size reduction is the most expensive operation in most mills. Crushing and grinding usually require the greatest portion of capital costs and often make up 60-70 percent of total mill operating costs as shown in Figure 1. Selection of the proper ...

### Autogenous and Semi-Autogenous Mills

AG/SAG mills can accomplish the same size reduction work as two or three stages of crushing and screening, a rod mill, and some or all of the work of a ball mill. Because of the range of mill …

### Optimum SAG Mill Discharge Density - Grinding ...

With SABC circuits the capability exists to ensure we are using the available power in the SAG, Ball Mill, and Pebble Crusher by controlling operating variables for each sub-circuit.

### Grinding mills - liming

Every mining operation has a unique grinding process. liming has experience of over 8,000 grinding mills globally, including manufacturing and delivering the largest SAG/AG mills in the world. Our experts welcome the opportunity to assist you with circuit and circuit control design as well as start-up, operation, and optimization of your mill.

### PAI SAG Mill Training - YouTube

Jan 08, 2016 · Ore that’s crushed in a primary crusher is usually fed into a SAG mill, where it is reduced in size so that it can be fed into a second stage of grinding in one or more ball mills.

### KnowledgeScape

The KnowledgeScape adaptive control solutions work together to see, listen, and think about the best way to increase tonnage and optimize SAG and ball mills at all times and for all conditions. Our expert control ball mill strategies automatically adjust sump water and mill water addition, mill speed where available and can open and close cyclones when appropriate.

### Evolution of SAG Mill Process Control at the Xstrata ...

In addition to the new process equipment, the SAG mill was commissioned with all controls implemented on the new PLC software platform. This removed the control strategy limitations previously described. Additional mill control loops and measurements now included: - Mill feed tonnage (automatic PI control – operator or remote set-point from mill

### 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, ... BALL MILL CONTROL EXAMPLE Process Description

### sag mill weight - Mine Equipments

SAG Mill Control: It Shouldnt be that Hard - WOMP SAG milling is arguably the most commonly used method of comminution in ... water, grinding media (balls) and ore in the mill, but not the weight of the mill …

### Cortez Gold SAG Mill Optimization | KnowledgeScape

We have implemented SAG and ball mill expert control solutions and thickener control in the past at cortez. Below are the results from the SAG mill optimization. SAG mill throughput was increased by 9.3%. It is interesting to note that the expert control of the SAG mill alone yielded a 6% increase.

### Digital Control Lab

These signals along with an energy polar plot taken from the shell provide the real-time toe, material flow rate and ball strike energy occurring in the mill. For cement, MillScan is the easy to calibrate electronic ear replacement for real-time mill fill level monitoring and feeder control.