### SAG Milling in Australia -Revised Submission

The Ernest Henry SAG mill (11 MW) is currently the largest twin pinion single drive mill installed in Australia. Problems have been experienced with the twin pinion drive at Fimiston and with the ring motor at Cadia. At Cadia excessive vibration and deflections in the drive stator were encountered during

### SAG Milling in Australia -Revised Submission

The Ernest Henry SAG mill (11 MW) is currently the largest twin pinion single drive mill installed in Australia. Problems have been experienced with the twin pinion drive at Fimiston and with the ring motor at Cadia. At Cadia excessive vibration and deflections in the drive stator were encountered during

### Vibration measurement on SAG mill drive motor IEEE DataPort

Vibration measurement on SAG mill drive motor for Energy harvesting or predictive maintenance

### INTRODUCTION SAG MILL MONITORING USING SURFACE

SAG MILL MONITORING USING SURFACE VIBRATIONS Jonathan Campbell1 Steven Spencer1 David Sutherland1 Thressa Rowlands1 Keith Weller1 Paul Cleary2 and Adrian Hinde3 1CSIRO Minerals PO Box 883

### Choosing a SAG Mill to Achieve Design Performance

SAG mill is an investment that can produce handsome returns if extra production is needed or simply to give the mine the option to mill the hardest ores at design throughput rates. Typical tests required to define a hardness variability function are given below in Figure 1.

### Grinding Mill Foundations

Sep 23 2014 · Most of our work since 2000 has been in developing grinding mill foundations to avoid vibration and unacceptable deflections. On a recent project for a plant in Peru the client was told by the mill vendor that there was no need to do a systems (dynamic) analysis on the mill foundations because the mills on that project were gear driven rather than being driven by ring motors (gearless drives).

### Optimizing your SAG mill operationInternational Mining

All AG/SAG mills using radial or curved pulp lifters suffer from inherent material transport problems such as slurry and pebble pooling which decrease throughput and increase energy consumption. The TPL completely eliminates slurry pooling and pebble pooling problems and ensures the best grinding conditions thus allowing AG/SAG mills to

### SAG MILL DISCHARGE SCREENS-TROMMEL vs. VIBRATING

I ve got to explain this a little bit. This flowsheet is typical of lines 1 and 3. The SAG mill has a trommel on the discharge end of it. Oversize is returned to the mill by a bucket wheel and water jet. Trommel undersize was pumped to a vibrating screen where the screen oversize was sent back to the mill and the undersize was pumped to the

### Sag Mill High VibrationHighest Motor NDE White Metal

On site we have a Sag Mill Driven by a 5500KW Motor. We have a vibration issue right across the Mill. The highest vibration is 30mm/sec RMS axial on the motor non drive end bearing.(White metal Bearing) The gear mesh frequency is 4200 CPM. The dominant frequency is 2400 CPM.

### RESPONSE OF PRIMARY GRINDING MILL PERFORMANCE TO

SAG mill and how the vibration response and hence mill operating conditions vary as a function of time including during mill equipment failures such as a broken discharge grate. Opportunities for improved mill control based on the data from the on-line monitor are also discussed as well as the implications in terms of mill processing and

### ball mill girth gear high vibration problem case study

cement ball mill girth gear manufacturer gujaratcrushing Iron Ore Sag Mill Troubleshoot In Cement Mill Gear BoxHow Much Crusher A cement mill had its Girth gear (which is a huge gear surrounding the mill body and high vibration (up to 14 mm/s rms . align rotary ball millrock crusher and mine solution . Read more

### Condition Monitoring of Ball Mill with HD Technologies

Image 1. The ball mill at Orcem Netherlands. Image 2. The gearbox just renovated with the shock pulse and vibration sensors. Image 3. A principal overview of the ball mill. 4 System setup. 4.1 Measuring equipment. Besides the gearbox the electric motor and the support bearings of the girth wheel are equipped with shock pulse and vibration

### Model for the solution of metal rolling mill vibration

Solve vibration problems. This vital tool assists in the solution of rolling mill vibration problems faced by the entire metal rolling industry. It is a finite element-based model that uses available mill data to predict all the key natural resonant modes of vibration of any rolling mill. The information it needs

### Autogenous and Semi-Autogenous MillsScienceDirect

Jan 01 2016 · The SAG mill had a 6–8 ball charge and the power consumption was 8 kWh/t which agreed well with the expected value. 9.6. Problems. 9.1. In an SAG mill the dimensions of the mill were 9.75 m 3.5 m and the specific gravities of the mineral and

### sag mill vibrationCR4 Discussion Thread

Jul 21 2009 · Few months back we too had similar kind of problem in our lime stone crusher and it got sorted out after we changed the bearings and its sleeve. ( clearance were very high ) sag mill vibration 07/21/2009 1 53 AM. I think clearance on the bearing is the cause of the vibration. Sad to say management prioritize more on our production than the

### SAG MILL DISCHARGE SCREENS-TROMMEL vs. VIBRATING

I ve got to explain this a little bit. This flowsheet is typical of lines 1 and 3. The SAG mill has a trommel on the discharge end of it. Oversize is returned to the mill by a bucket wheel and water jet. Trommel undersize was pumped to a vibrating screen where the screen oversize was sent back to the mill and the undersize was pumped to the

### Ball Mills and Sag Mill problem AMP Maintenance Forums

Nov 21 2007 · I work in an industrial copper company as vibration analysis supervisor. This company started to work about 2 years ago. We have two Ball Mills and one Sag Mill. We had some visual inspection on pinion and ring gears during these inspections we found some abnormal wear on this gears (pictures show this problem in enclosure).

### Vibration measurement on SAG mill drive motor IEEE DataPort

Vibration measurement on SAG mill drive motor for Energy harvesting or predictive maintenance

### Noise Monitoring That Prevents Mill Damage Brüel Kjær

Noise Monitoring for Optimal Mill Operation. Mining companies around the world continue to face the challenge of increasing productivity and reducing downtime. As part of its SAG mill control system Manta Controls developed the Manta Mic a robust and reliable acoustic analyser that prevents mill

### sag mill vibrationCR4 Discussion Thread

Jul 21 2009 · Few months back we too had similar kind of problem in our lime stone crusher and it got sorted out after we changed the bearings and its sleeve. ( clearance were very high ) sag mill vibration 07/21/2009 1 53 AM. I think clearance on the bearing is the cause of the vibration. Sad to say management prioritize more on our production than the

### vibration mill speed for size reduction

vibration mill speed for size reduction. Particle size reduction by a hammer mill I Effect of . Particle size reduction by a hammer mill I Effect of output screen size feed particle size and mill speed. Hajratwala BR. A hammer mill is an impact mill commonly used in pharmaceutical manufacturing for reducing particle size for a variety of drugs.

### SAG MILL DISCHARGE SCREENS-TROMMEL vs. VIBRATING

I ve got to explain this a little bit. This flowsheet is typical of lines 1 and 3. The SAG mill has a trommel on the discharge end of it. Oversize is returned to the mill by a bucket wheel and water jet. Trommel undersize was pumped to a vibrating screen where the screen oversize was sent back to the mill and the undersize was pumped to the

### (PDF) SAG mill monitoring using surface vibrations

The process state of an AG/SAG mill can be inferred from surface vibration monitoring. This is a passive non-intrusive low cost and reliable hardware monitoring technology that is sensitive to

### Vibration Feature Extraction and Analysis of Industrial

Jan 01 2015 · The vibration signal analysis for lab model sag mill is same as that of ball mill but the frequency of operation of vibration signal and impact strengths are different 8 . Sag mill will require a higher value of g and BW of the sensor due to higher stiffness compared to that of ball mill (as the length of the mills is accounted).

### Vibration measurement on SAG mill drive motor IEEE DataPort

Vibration measurement on SAG mill drive motor for Energy harvesting or predictive maintenance

### MillSlicer mill vibration analysisProcess IQ

MillSlicer has been developed for the mining industry specifically for use on SAG/AG mills. The MillSlicer utilises vibration sensors and digital signal processing technology to provides information about the inlet and outlet conditions and what is happening at each of the 360° of the mill.

### SAG MILL DISCHARGE SCREENS-TROMMEL vs. VIBRATING

### Sag Mill High VibrationHighest Motor NDE White Metal

On site we have a Sag Mill Driven by a 5500KW Motor. We have a vibration issue right across the Mill. The highest vibration is 30mm/sec RMS axial on the motor non drive end bearing.(White metal Bearing) The gear mesh frequency is 4200 CPM. The dominant frequency is 2400 CPM.

### vertical mill vibration faultpiercarlofoddis

Active Damping of Milling Vibration Using Operational 29 Oct 2018 The problem of chatter vibration is associated with adverse consequences Modal analysis of the milling machine structure through FEM andVibration Diagnosis and Prognostics of Turn Single cut machining on A-axis of CNC Vertical Milling centre using HSS and and prognostics as a measure of machine tool condition monitoring

### Vibration Millgrinding Vibration Mills Quality In Mining

Vibration Problem In Coal Mill Gearbox . Vertical Type Coal Mill Vibration Coal mill vibration problem problem of coal mill babypraktijkapeldoornoal mill problem low grinding notairedemeyer becoal mill vibration problem vibration problems in coal mill aakarengineers vibration problems in coal mill vm series vertical grinding mill is a kind of large scale powder mill which is designed specially

### OPTIMAL SAG MILL CONTROL USING VIBRATION DIGITAL

Recent developments in low power wireless and Digital Signal Processing (DSP) technologies have given rise to a new system that can monitor vibrations in real-time on the rotating surface of SAG AG and Ball mills.

### Ball Mills and Sag Mill problem AMP Maintenance Forums

Nov 21 2007 · I work in an industrial copper company as vibration analysis supervisor. This company started to work about 2 years ago. We have two Ball Mills and one Sag Mill. We had some visual inspection on pinion and ring gears during these inspections we found some abnormal wear on this gears (pictures show this problem in enclosure).

### foundation design criteria for sag mill and ball millME

Foundation design criteria for sag mill and ball mill. foundation design criteria for sag mill and ball mill. The mechanical design of grinding facilities in mineral processing plants is based on foundations for the SAG and ball mills due to vibration problems experienced . be included in models developed with standard finite element packages.

### Structural Vibration and Ways to Avoid It Vibration

High stiffness will help avoid vibration problems but excessive use of over-sized beams will affect the mass and cost. An optimized design identifies where steel can be added or removed at key locations to maximize the stiffness and minimize the costs. This optimized approach will provide significant cost savings to the ownerfar in excess

### Vibration Millgrinding Vibration Mills Quality In Mining

Vibration Problem In Coal Mill Gearbox . Vertical Type Coal Mill Vibration Coal mill vibration problem problem of coal mill babypraktijkapeldoornoal mill problem low grinding notairedemeyer becoal mill vibration problem vibration problems in coal mill aakarengineers vibration problems in coal mill vm series vertical grinding mill is a kind of large scale powder mill which is designed specially

### Ball Mills and Sag Mill problem AMP Maintenance Forums

Nov 21 2007 · I work in an industrial copper company as vibration analysis supervisor. This company started to work about 2 years ago. We have two Ball Mills and one Sag Mill. We had some visual inspection on pinion and ring gears during these inspections we found some abnormal wear on this gears (pictures show this problem in enclosure).

### Chatter in Machining Milling Lathe Vibration Easy Guide

A vibration in the tool leads to a wave in the workpiece constant vibration creates a steady series of these waves. Now imagine what happens if you make a second pass over a surface that is already wavy from chatter–the forces on your cutter vary with the peaks and troughs of the waves.