54 www.resourceworld.com
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MININGWORLD
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everaging more than 295 years of
experience in the engineering, design,
fabrication, installation and com-
missioning of mining, bulk handling and
minerals processing equipment and systems,
Tenova TAKRAF is a major supplier to the
global resource industry.
The company's competence covers
overburden removal, raw material extrac
-
tion, conveying, processing, comminution,
homogenizing, blending, storage, trans-
port and shipment.
In the minerals processing industry,
comminution is the act of reducing the
size of raw material. This is accomplished
by using powerful crushers and grinders.
Conventionally, crushers of various types
ranging from jaw to hammer, gyratory and
cone crushers are employed to break down
or crush ore using force, compressing raw
material so as to generate enough energy
within the material being crushed that
its molecules separate from (fracture), or
change alignment in relation to (deform),
each other.
HPGRs are modern and efficient com
-
minution machines, which, according to
TAKRAF, are becoming more and more
popular within the minerals processing
field and are an interesting crushing alter-
native, where appropriate. In fact, the
company states that HPGR technology "is
a qualified alternative for large-scale com-
Tenova TAKRAF's High-Pressure
Grinding Roll (HPGR) Competence
by Kathrine Moore
