A crusher was used to crush a material with a compressive strength of 22.5 MN/m?. The size of the feed was minus 50 mm, plus 40 mm and the power required was 13.0 kw/(kg/s). The screen analysis of the product was:

Elements Of Electromagnetics
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Author:Sadiku, Matthew N. O.
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A crusher was used to crush a material with a compressive strength of 22.5 MN/m?.
The size of the feed was minus 50 mm, plus 40 mm and the power required was 13.0
kw/(kg/s). The screen analysis of the product was:
Size of aperture (mm)
Amount of product (per cent)
through
6.0
all
on
4.0
26
on
2.0
18
on
0.75
23
on
0.50
on
0.25
17
on
0.125
3
through
0.125
5
What power would be required to crush 1 kg/s of a material of compressive strength
45MN/m? from a feed of minus 45 mm, plus 40 mm to a product of 0.50 mm average size?
Transcribed Image Text:A crusher was used to crush a material with a compressive strength of 22.5 MN/m?. The size of the feed was minus 50 mm, plus 40 mm and the power required was 13.0 kw/(kg/s). The screen analysis of the product was: Size of aperture (mm) Amount of product (per cent) through 6.0 all on 4.0 26 on 2.0 18 on 0.75 23 on 0.50 on 0.25 17 on 0.125 3 through 0.125 5 What power would be required to crush 1 kg/s of a material of compressive strength 45MN/m? from a feed of minus 45 mm, plus 40 mm to a product of 0.50 mm average size?
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