magnus evertsson sandvik rock processing
TRANSCRIPT
Quarry Academy 2005
Automation and Feeding
Magnus EvertssonSandvik Rock Processing
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Quarry Academy 2005
Crusher Control Strategy
New control algoritm
Optimizes crusher performanceProtects the crusher and enhances fatigue lifeControls maximum stresses
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Quarry Academy 2005
New control algorithm
Instantaneouspressure
Average pressure
Average peak pressure
Instantaneouspressure
Instantaneouspressure
Average pressureAverage pressure
Average peak pressure
Average peak pressure
Control average of peak pressure!
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Quarry Academy 2005
New control algorithm
Max Max
A B
Max Max
A B
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Quarry Academy 2005
New control algorithm
Feed +16-22mm, CSS=6.7mm
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
0 100 200 300 400 500 600 700 800 900 1000
Time x100 [s]
Pres
sure
[MPa
]Unstable crushing conditions
- High amplitude, low average pressure
CSS=6.7mm
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Quarry Academy 2005
New control algorithm
Feed +16-22mm, CSS=4.3mm
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
0 100 200 300 400 500 600 700 800 900 1000
Time x100 [s]
Pres
sure
[MPa
]
Good crushing conditions- Low amplitude, high average pressure
CSS=4.3mm
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Quarry Academy 2005
Feeding conditions
Stable feeding conditions is the basis for high crusher
performance
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Quarry Academy 2005
Non-Choked Feed
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Quarry Academy 2005
Feeding conditions
Non-choke Feed
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
0 1000 2000 3000 4000 5000 6000
Time x100 [s]
Pres
sure
[MPa
]
Non-choked feed- High pressure amplitudes
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Quarry Academy 2005
Feeding conditions
Choke Feed
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
0 1000 2000 3000 4000 5000 6000
Time x100 [s]
Pres
sure
[MPa
]
Choked feed- Low pressure amplitudes
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Quarry Academy 2005
Segregated feed
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Quarry Academy 2005
Feeding conditions
Misaligned Feed
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
0 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000
Time x100 [s]
Pres
sure
[MPa
]
Misaligned/segregated feed- High pressure amplitudes
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Quarry Academy 2005
Feeding conditions
Aligned feed
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
0 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000
Time x100 [s]
Pres
sure
[MPa
]
Aligned feed- Low pressure amplitudes
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Quarry Academy 2005
Splitter
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Quarry Academy 2005
Rotary Distributor for Crusher