570 XXXI International Mineral Processing Congress 2024 Proceedings/Washington, DC/Sep 29–Oct 3
• A novel dry belt drum magnetic separator with radial
pole arrangement, high magnetic field intensity of
around 3800 gauss and high gradient was designed
and developed for efficient magnetic separation of
coarse particles 40–400 mm in size. Both experimen-
tal and numerical methods were used in this inves-
tigation. The FEMM software was used to simulate
magnetic field distribution through the surface of the
drum separator.
• The study was conducted in order to produce a pre-
concentrate and final iron ore concentrate from iron
ore waste rock of a magnetite mine with a particle
size of 1200 mm and 15% iron grade on average. The
results of industrial testworks showed that through
magnetic separation and primary crushing prior to
that a final pre concentrate whose yield, iron grade
and iron content recovery are 27.4%, iron 35.08%
and 60.35%, respectively is achievable
• In order to produce a suitable final concentrate, the
pre-concentrate was ground to k80=100 micron and
following that treated by two stages of wet MIMS
separation and also two stages of WHIMS. The
results indicated that a final mixed concentrate with
65.53% iron grade, 44.81% yield and also 83.73%
iron content recovery could be attained. With respect
to the original iron ore waste, the iron recovery was
50.53 wt %.
• Iron was recovered from iron ore waste rock of the
mine through primary crushing and pre-concentra-
tion followed by stages of wet magnetic separation.
Combining these recycling processes can ensure
complete utilization of iron ore waste rock dumps.
ACKNOWLEDGMENTS
The authors would like to thank Fakoor Industrial and
Mining Research Centre (FIMRC) of Iran and Fakoor
Meghnantis Spadana Co. of Iran who supplied the facilities
necessary for this study.
REFERENCES
Augusto, P.A., Martins, J.P., 1999. Min. Eng. 12 (7),
799–807.
Augusto, P.A., Augusto, P., Castelo-Grande, T., 2002.
Miner. Eng. 15 (1–2), 35–43.
Birss, R., Parker, M., Wong, M., 1979. Modeling of fields
in magnetic drum separators. Magn.IEEE Trans. 15,
1305–1309.
Hoffmann, C., Franzreb, M., et al., 2002. A novel high-
gradient magnetic separator (HGMS) design for
biotech applications. IEEE Transactions on Applied
Superconductivity 12 (1), 963–966.
Li, C. Sun, H. Bai, J. Li, L. Innovative methodology for
comprehensive utilization of iron ore tailings: Part 1.
The recovery of iron from iron ore tailings using mag-
netic separation after magnetizing roasting. J. Hazard.
Mater. 2010, 174, 71–77.
Pokrajcic, Z, Lewis-Gray, E, 2010. Advanced comminu-
tion circuit design—essential for industry, AusIMM
Bulletin, August 2010, pp 38 – 42.
Svoboda, J., 1987. Magnetic Methods for the Treatment of
Minerals, Elsevier Science Publishers, Amsterdam.
Wasmuth, H.D., and Unkelbach, K.H., 1991. Recent
developments in magnetic separation of feebly mag-
netic minerals, KHD Humboldt Wedag AG, K61n,
Germany Minerals Engineering, Vol. 4, Nos 7–11,
pp. 825–837.
Xiong, D., Lu, L., Holmes, R.J., 2015. Developments in
the physical separation of iron ore: magnetic separation
Iron Ore.
• A novel dry belt drum magnetic separator with radial
pole arrangement, high magnetic field intensity of
around 3800 gauss and high gradient was designed
and developed for efficient magnetic separation of
coarse particles 40–400 mm in size. Both experimen-
tal and numerical methods were used in this inves-
tigation. The FEMM software was used to simulate
magnetic field distribution through the surface of the
drum separator.
• The study was conducted in order to produce a pre-
concentrate and final iron ore concentrate from iron
ore waste rock of a magnetite mine with a particle
size of 1200 mm and 15% iron grade on average. The
results of industrial testworks showed that through
magnetic separation and primary crushing prior to
that a final pre concentrate whose yield, iron grade
and iron content recovery are 27.4%, iron 35.08%
and 60.35%, respectively is achievable
• In order to produce a suitable final concentrate, the
pre-concentrate was ground to k80=100 micron and
following that treated by two stages of wet MIMS
separation and also two stages of WHIMS. The
results indicated that a final mixed concentrate with
65.53% iron grade, 44.81% yield and also 83.73%
iron content recovery could be attained. With respect
to the original iron ore waste, the iron recovery was
50.53 wt %.
• Iron was recovered from iron ore waste rock of the
mine through primary crushing and pre-concentra-
tion followed by stages of wet magnetic separation.
Combining these recycling processes can ensure
complete utilization of iron ore waste rock dumps.
ACKNOWLEDGMENTS
The authors would like to thank Fakoor Industrial and
Mining Research Centre (FIMRC) of Iran and Fakoor
Meghnantis Spadana Co. of Iran who supplied the facilities
necessary for this study.
REFERENCES
Augusto, P.A., Martins, J.P., 1999. Min. Eng. 12 (7),
799–807.
Augusto, P.A., Augusto, P., Castelo-Grande, T., 2002.
Miner. Eng. 15 (1–2), 35–43.
Birss, R., Parker, M., Wong, M., 1979. Modeling of fields
in magnetic drum separators. Magn.IEEE Trans. 15,
1305–1309.
Hoffmann, C., Franzreb, M., et al., 2002. A novel high-
gradient magnetic separator (HGMS) design for
biotech applications. IEEE Transactions on Applied
Superconductivity 12 (1), 963–966.
Li, C. Sun, H. Bai, J. Li, L. Innovative methodology for
comprehensive utilization of iron ore tailings: Part 1.
The recovery of iron from iron ore tailings using mag-
netic separation after magnetizing roasting. J. Hazard.
Mater. 2010, 174, 71–77.
Pokrajcic, Z, Lewis-Gray, E, 2010. Advanced comminu-
tion circuit design—essential for industry, AusIMM
Bulletin, August 2010, pp 38 – 42.
Svoboda, J., 1987. Magnetic Methods for the Treatment of
Minerals, Elsevier Science Publishers, Amsterdam.
Wasmuth, H.D., and Unkelbach, K.H., 1991. Recent
developments in magnetic separation of feebly mag-
netic minerals, KHD Humboldt Wedag AG, K61n,
Germany Minerals Engineering, Vol. 4, Nos 7–11,
pp. 825–837.
Xiong, D., Lu, L., Holmes, R.J., 2015. Developments in
the physical separation of iron ore: magnetic separation
Iron Ore.