Extec I-C13 Impactor, Руководство по эксплуатации и техническому обслуживанию

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Page 204 Ver: IC13-EN-10567
I-C13 Impactor
IM – 108GB – (F. 01)
4
Position 2 ( Cross Belt installation)
A separator mounted over a moving bed of material at right angles to the conveyor is referred to as Position 2
(Figs. 3 and 4). This installation usually requires a stronger magnet than Position 1 since tramp iron at the
bottom of the burden is more difficult to extract.
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The efficiency of magnetic separators in Position 2 is dependent upon the speed of the conveyor
carrying the feed. As conveyor speed increases above 100m/min separation efficiency may fall.
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Conveyor idlers beneath the separator in Position 2 must be non-magnetic.
x
Manually cleaning suspended magnets should be installed on the centreline of the material conveyor,
Fig. 3. Self-cleaning suspended magnets should be installed with the trailing edge of the magnet box
immediately above the outer edge of the conveyor idler. Refer to Fig. 4.
Suspension Height
The magnetic strength and configuration of an OP/CP separator is selected for a specific suspension height
and application. The suspension height quoted should be considered a maximum.
When setting the suspension height, Fig. 5, lower the magnet as close as possible to the top of the burden,
without interfering with the material flow. If the unit is self-cleaning, ensure that the separator belt is clear to
operate freely whilst carrying tramp iron. Failing to do this could result in tramp iron being knocked back into
the non-magnetics.
A clearance of 75 mm between the magnet face and the top of the product burden / trajectory should be
maintained for self-cleaning units; this clearance can be reduced to 50 mm for manually cleaned units.
WARNING:
Do not over-tighten the self-cleaning belt as this could damage the bearings. The equipment
is designed to operate with belt sag of approximately 25 mm.
Figure 5
Figure 3
Figure 4