asri sandvik
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ASRi
Sandvik Rock Processing
ASRi is a system which automatically regulates the crusher and protects it
against overloads.
ASRiTM - Definition
ASRi
Sandvik Rock Processing
The Hydrocone has a hydraulically supported mainshaft
Hydrosetis the key to success
The mainshaft is supported by a hydraulic jack
ASRi
Sandvik Rock Processing
Chalmers University of Technology
In Gothenburg, SwedenResearch team since 1993 headed by
Dr Magnus Evertsson
Cone Crusher Modelling•Material characteristics•Pressure Distribution•Power Draw – Influence of wear, etc
ASRi
Sandvik Rock Processing
Rock Breakage Behavior
Form conditionedcompression-displacement controlled
( ),F F s σℵ ℵ=
ssbsize distribution widthσ
ℵ
ℵ
=
=
F
F
s
b
ASRi
Sandvik Rock Processing
Rock Breakage Behavior
( ) 2 2 2 2 21 2 3 4 5 6,p s a s a s a s a s a s a s
size distribution width
σ σ σ σ σ
σℵ ℵ ℵ ℵ ℵ ℵ ℵ ℵ ℵ ℵ ℵ ℵ
ℵ
= + + + + +
=
Multi (inter) particle-pressure response
ASRi
Sandvik Rock Processing
Crushing Pressure and Forces
cα
OSS CSS
iα
iR( )p p α=
eω
Concave
Mantle
( )( )
sintan
cosi
p d
p d
α α αα
α α α= ∫∫
( ) sin
sinii
p r dR
α α α
α= ∫
ASRi
Sandvik Rock Processing
Pressure is proportional to crushing force
Reaction force F1
Reaction force F2
Hydraulic pressure , i.e. proportional to F
Piston area A
Crushing force FF1+F2
F3α
Reaction force F3
AaF
AFp cos3 ⋅
==
ASRi
Sandvik Rock Processing
OSS
CSSF=Resultant of crushing force
Rotates with eccentric
Reacted by clamping cylinders
Another philosophy…..
ASRi
Sandvik Rock Processing
Relationship between power and pressure
Packing Fine crushing
Coarse crushingHyd
raul
ic p
ress
ure
Power
Maximumpermitted
Maximumpermitted
ASRi
Sandvik Rock Processing
History1961 1967 1978 1987 1992
> 3000 systems sold around the world!!!
ASR1”Harry up” ASR2 ASRPlusASRC
ASRi
Sandvik Rock Processing
Features of the new ASRiTM
• Easy to install• User-friendly Help functions• POTTM, a Product Optimization Tool• Up to 20 crushing programs• Improved communication possibilities• Alarm list/log• Historical data diagnostics• Regulation in accordance with average peak
pressure
ASRi
Sandvik Rock Processing
ASRiTM Benefits…
Even higher utilization of the Hydrocone crusher’s potential
Optimized performance & increased reduction
”Get to know your Hydrocone better” (Diagnostics)
Less downtime
User-friendly – easy to understand and operate
Better liner utilization & compensation for wear
ASRi
Sandvik Rock Processing
How the system is built up
24V24V
I/O
ASRi-bus / 24V
Hydroset tankunit
Signals from the crusher
Power transducer
Switchgear cabinet L3 - cabinet
Feed interlock
24V
Up
Down
Motor protector
Contactor ”up”
Contactor ”down”
Alarm
I/O
Reserve
L1-boxL1-box
A-dim Pressure Temp
ASRicontrol cabinet
ASRi
Sandvik Rock Processing
ASRicontrol cabinet
I/O
Hydroset tank unit
Signals from the crusher
Power transducerSwitchgear cabinet
Feed interlock
24V
Up
Down
Motor protector
Contactor ”up”
Contactor ”down”
Alarm
I/O
Reserve
24V24V
L1-boxL1-box
A-dim. Pressure Temp. (Level)
L3 cabinet
Connecting up
ASRi
Sandvik Rock Processing
ASRi
ASRicontrol cabinet
I/O
Hydroset tank unit
Signals from the crusher
Power transducerSwitchgear cabinet
Feed interlock
24V
Up
Down
Motor protector
Contactor ”up”
Contactor ”down”
Alarm
I/O
Reserve
24V24V
L1-boxL1-box
A-dim. Pressure Temp. (Level)
L3 cabinet
Connecting up
ASRi
Sandvik Rock Processing
ASRicontrol cabinet
I/O
Hydroset tank unit
Signals from the crusher
Power transducerSwitchgear cabinet
Feed interlock
24V
Up
Down
Motor protector
Contactor ”up”
Contactor ”down”
Alarm
I/O
Reserve
24V24V
L1-boxL1-box
A-dim. Pressure Temp. (Level)
L3 cabinet
Connecting up
ASRi
Sandvik Rock Processing
Measurement and signal analysis
Instantaneouspressure
Average pressure
Average peak pressure
ASRi
Sandvik Rock Processing
Feed conditions 1
Non-choked feed: Large pressure amplitude & High peaks
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 6000Time x100 [s]
Pres
sure
[MPa
]
ASRi
Sandvik Rock Processing
Feed conditions 4
Homogenized choked feed: Smaller pressure amplitude & Lower peaks
ASRi
Sandvik Rock Processing
Regulating the crusher
Max.Max.
Pressure regulation is carried out in accordance with average peak pressure.
A B
Av.
Av.LimitLimit
ASRi
Sandvik Rock Processing
Calibration
There are two ways of calibrating the crusher: metal-to-metal and with lead.
The system automatically suggests calibration with lead when it is not possible to carry out a metal-to-metal calibration.
Metal-to-metal calibration is now completely automatic.
The operator is led through the entire process and is informed about what the system is doing. If appropriate, warnings appear on the screen.
ASRi
Sandvik Rock Processing
Language versions
The user can access all of the language versions which were available when the system was delivered.
Stage 1 Stage 2
SI
US
Measuring units
The user can select whichever measuring units he/she wants, irrespective of which language is selected.
Russian
Portuguese
Polish
Norwegian
Italian
Czech
Swedish
Spanish
German
French
Finnish
English
ASRi
Sandvik Rock Processing
Crushing programs
It is possible to store up to 20 different crushing programs.
A crushing program can regulate the crusher in accordance with one ofthree different methods:
Auto-CSS Multi-CSS Auto-Load
Much easier to define a crushing program.
In Extended mode, the user can take advantage of the new POT feature to establish the optimum setting.
ASRi
Sandvik Rock Processing
P.O.T. feature
Crushing program
Crushing program
Configure FDD
Configure FDD
In-put limit curvesIn-put limit curves
Configure MAF
Configure MAF
0-2
2-4
4-8
8-11,2 11,2-16 16-22,4
5 mm 12 mm
Time share
FDD
8 mm
12 mm
Time share
100%
mm
50%
1 10
PCD
In-put test resultIn-put test result
Andel som passerar genom maska (vikts-%)Siktmaska (mm)
8798735841885608331Vikt (g)
72,471,969,370,468,6Flöde (t/h)
90,091,395,092,091,5Kornform 8-11,2 (%)
75,086,889,493,093,1Kornform 5,6-8 (%)
100,022,4
97,999,9100,0100,099,916,0
79,888,593,395,598,611,2
54,465,371,078,686,78,0
40,349,853,161,368,35,6
33,240,342,848,754,94,0
22,628,430,734,238,32,0
15,820,222,224,827,41,0
11,715,216,818,220,50,5
12 mm
11 mm
10 mm
9 mm8 mm
Spalt, CSS
MAF
ASRi
Sandvik Rock Processing
Alarms
ASRi has an alarm monitoring system which monitors a number of analogand digital signals.
The alarm list displays the current status of an active or unacknowledged alarm.
ASRi has an alarm log which displays all status changes for all alarms.
ASRi
Sandvik Rock Processing
Event list
ASRi incorporates a system which logs a number of different events.
The events are displayed in a list where it is possible to sort events according to type or time.
Examples of events are: Switching the system on and off, starting a crushing program, calibration, etc.
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