merlin vsi crushers · quarry academy 2005 what is an autogenous crusher ? zwhat mother nature...
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Quarry Academy 2005
Merlin VSI CrushersSandvik Rock Processing
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Quarry Academy 2005
Merlin-VSI®
What is an Autogenous crusher ?
How Does it Work ?
Where does it belong ?
Why should it be used ?
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Quarry Academy 2005
What is an Autogenous Crusher ?What mother nature achieves over millions of years (weathering, glacial deposits etc), Merlin-VSI® accomplishes in seconds.
A third or fourth stage crusher, that crushes with a “rock on rock” crushing action.
No wear parts are used to directly “crush” the rock.
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Quarry Academy 2005
Merlin-VSI® How It Works
Rotor Only Feed
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Quarry Academy 2005
Merlin-VSI® How It Works
Rotor And Bi-Flow Feed
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Quarry Academy 2005
How It Works - VSI Crushing Action
Attrition
Cleavage
Impact
Operate crusher at maximum designed tonneagethroughput.
To maximise all 3 types of crushing action listed below which are:-
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Quarry Academy 2005
How It Works - Maximum Designed Tonneage Throughput ?
Set the crusher at a middle to low range speed.Load the crusher to pull full load motor current.Add up to a further 17% in Bi-Flow.
You will then achieve. Maximum Tonneage Production
Lowest cost per Tonne Operating Costs.
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Quarry Academy 2005
How can we change the product gradation?
Rotor speed is normally referred to in terms of “Tip Speed”. This is measured as Metres per second (M/sec.).Tip speeds vary with machine size and vary from 44M/sec. to 66M/sec.Increasing Tip speed, generally results in a “finer” gradation product.BUT BE AWARE !!Total throughput of rotor fed material will decrease, resulting in a reduced production rate.Operating costs increase with rotor speed.
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Quarry Academy 2005
Where In The Production Line ?
If there is nothing in the feed below
1½” (37mm), then it is NOT
a VSI application.
However, if the top feed is less than
1”(25mm), Nothing can compare
to the VSI’s efficiency.
The VSI – where does it belong?
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Quarry Academy 2005
Merlin-VSI® Capacities (nominal)
55375010RP105 S/D
75 - 1105012151RP106 S/D
132 - 18550192122RP107 S/D
200 - 22055250193RP108S/D
264 - 37055444251RP108 D/D
400 - 50055600445RP109D/D
Kw Power RangeMax Feed SizeMax. TonneageMin. tonneageModel
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Quarry Academy 2005
Why Merlin-VSI® ?Autogenous rock on rock action results in unbeatable cost per tonne, especially for very abrasive materials such as Industrial minerals (Brown Fused Alumina, Zirconia, White Fused Alumnia, Calcined Bauxite etc.).
Quartz
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Quarry Academy 2005
Why Merlin-VSI® ?In applications where superior product shape is required, e.g. concrete aggregate / sand, road surfacing.
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Quarry Academy 2005
Why Merlin-VSI® ?To reduce flake and elongation from preceding crushers (jaws, cones etc.).
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Quarry Academy 2005
Why Merlin-VSI® ?In recycling applications, where minimal contamination of product is required in conjunction with cubicle shape (glass cullet etc.)
0.500 – 1.00mm 0.125 - 0.250mm
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Quarry Academy 2005
Why Merlin-VSI® ?For differential crushing to liberate ores (gold heap leaching etc.)
To remove contaminants (clay, lignite, sandstone, etc.).
Production of De-Gasser for Steel industries.
Production of fertiliser from steel furnace slag.
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Quarry Academy 2005
Why Merlin-VSI® ?In Mining applications, to reduce the feed size to the ball mills, enabling huge savings to be realised in both mill charge and tonneagethroughput of the mills.
S.S.G.P.O. Kazakhstan
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Quarry Academy 2005
Why Merlin-VSI® ?To manufacture sand – a growing market area due to the increased worldwide environmental restrictions for digging natural sand.
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Quarry Academy 2005
Merlin-VSI®
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