A new face drilling rig for narrow tunnels and ... - Advanced Mining

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Issue 04 | 2010
A QUANTUM JUMP:
NEWS & REPORTS
t took them 5 years - from the first industrial unit to the biggest WHIMS ever built.
And once again the Itaminas Mine in the heart of the Brazilian iron quadrangle in
the state of Minas Gerais is the place to be. Where everything started in 2005 with a
120 tph gaustec 3200 the new Mega- WHIMS gaustec® GX 3600 went into operation
in July this year, at a capacity of 700 tph. Not by coincidence again the area of one
of the largest iron ore deposits in the world became the birthplace of this new class
of giant magnetic separators, where huge mining activities require huge equipment
capacities.
gaustec®-Gx 3600
GAUSTEC®-Gx 3600
GAUSTEC´S NEW x-TYPE MEGA- WHIMS
From the very first moment up to now gaustec is
convincing the customers with simple but intelligent
solutions, from operators for operators. The
implementation of numerous improvements to the well
known JONES- WHIMS concept were honored by the
market. Easier maintenance, less energy consumption
as well as more flexibility by means of more parameters
to adjust, i.e. better performance, led to more than 50
gaustec®- WHIMS sold in five years only.
And now with the new model capacities per unit have
doubled at almost the same footprint, the same weight,
the same energy consumption and the same efficiency,
of course:
IN OPERATION WITH 700 TPH!
The new gaustec®- Gx 3600 with
capacities from 360 to 800 tph¹).
At the Itaminas plant the new gaustec®-GX 3600 is fed
with hematite iron ore < 1 mm with a feed grade of about
54 % Fe and 23 % SiO2 at a rate of 700 tph, 50 % solids.
The product of this cobber stage is further upgraded in
a second, already existing gaustec®-G 3600 to a final
product of plus 66 % Fe and less than 3.0 % SiO2. The
tailings of the cobber stage are fed to a gaustec®- GHP
150, which works as a scavenger, producing tailings with
about 18 % Fe and 60 % SiO2. With the future introduction
of a grinding circuit for better liberation it is expected
that the iron in the tailings can be reduced to less than
10 % Fe, since by now only natural iron ore fines are
processed.
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