metso Expect results High gradient magnetic separators Outstanding separation selectivity

2 High gradiant magnetic separation

HGMS High gradient magnetic separators - for outstanding separation selectivity Metso High Gradient Magnetic Separators (HGMS) are designed to recover weakly magnetic material from non-magnetic matter and can be used for many applications including the processing of iron ores and rare earths. In addition to the strongly magnetic minerals of Fe, Co, and Ni, a vast number of weakly magnetic minerals, which are not normally treatable by ordinary magnetic separators, may be processed by high gradient magnetic separators. The HGMS is often indiscreetly referred to as WHIMS (wet high intensity magnetic...

Matrix material differ from coarse grade expanded metal to fine steel wool for special quality. The Metso HGMS - solves your magnetic sepa The HGMS separators and filters are designed around a unique magnetic system with high capacity matrix material which together produces the required high magnetic field gradient to enable the capture of normally weakly magnetic or paramagnetic minerals. High capacity The specific capacity of the Metso HGMS depends very much on the material to be processed and testing is always required. Due to the unique magnetic system and design of the Metso HGMS very large...

aration problems The magnet system The HGMS comprises a solenoid surrounding a non-magnetic process vessel. An iron return frame surrounds the coil itself. The solenoid design overcomes many of the limitations of working within the air gap of a conventional horseshoe shaped magnet. The most important advantage of the design is that the return frame cross section can be increased to cope with higher field strengths without magnetic saturation. A second advantage is that the direction of the magnetization becomes parallel with the pulp flow and a third is the reduction of stray field around the...

Applications As a lot of minerals are magnetic to some degree and others are associated with minerals that are ferromagnetic or paramagnetic, high gradient magnetic separation can often be used in separation processes where normally difficulties are experienced with other processes. The paramagnetic minerals at the higher end of the list are normally easy to recover. Many low susceptibility minerals are associated with other minerals or have extra Fe in the crystals, and are hence often possible to separate. As examples of HGMS applications can be mentioned • Hematite recovery • Pyrrhotite extraction •...

LT Level Transmitter DM Density Meter PI Pressure Gauge Screen Oversize Passive Matrix Valve Rinse Water Low Intensity Magnetic Separation (LIMS) Emergency Ower Flow Closed Cooling Loop Closed Coil Cooling Loop Power Supply Pulp Water Vacuum Station Flush Station Seal Water Flush Water Magnetic Product HGMS Process System Technical description Metso HGMS unit Auxiliary equipment The main unit consists of a heavy frame, one to three magnetic heads, and a matrix ring with matrix cassettes. The magnet head(s) are open on two sides to allow the matrix ring to travel continuously through the same...

Passive matrix Wear plate in magnet head Passive matrix Vacuum system Cooling station To achieve an uninterrupted operation the feed to the separator must be controlled with respect to the feed particle top size, preferably by screening to make sure that the feed is suitable for the selected matrix grade. Any foreign debris such as wood sticks, metal fibres and plastic must be screened off. The magnetic concentrate is flushed out of the matrix with water. To increase the pressure drop over matrix at the time of flushing the discharge is connected to a vacuum system consisting of a receiver tank...

High gradiant magnetic separation 9

Web and ring seals around each matrix cassette notice­able near the periphery of the ring. Power distribution unit and equipment super­ isory control v (PLC) The Metso HGMS requires direct current (DC) for energizing the magnet coils and hence a power transformer, and DC converters are provided. The DC converter also controls the current for the magnet coils. The power supply unit normally also provides for the power to the auxiliary equipment and a PLC is integrated in the system for control logics. All components are installed in cabinets, which in turn are installed in a special totally enclosed...

Options On request many functions, which are not standard, may optionally be included in the Metso HGMS control system. One such added function might be control of the feed density and flow; another could be automatic control of the rinse water flow and the matrix condition. The maintenance of the Metso HGMS is normally limited to changing of the seals around the matrix ring. The life of the seals vary considerably from application to application. Model Heads Diameter, m area, m2 The original HGMS operates in a cyclic process mode and is intended for removal of minor amounts of magnetic...

• Metso Minerals Industries, Inc. 2715 Pleasent Valley Road, York, PA 17402, USA, Phone: +1 717 843 8671 • etso Minerals (South Africa) (Pty) Ltd. M Private Bag X2006, Isando, Johannesburg,1600, South Africa, Phone: +27 11 961 4000, Fax: +27 11 397 2050 • Metso Minerals (Australia) Ltd. Level 2, 1110 Hay Street, West Perth, WA 6005, Australia, Phone: +61 8 9420 5555, Fax: +61 8 9320 2500 • Metso Minerals (India) Pvt Ltd 1th floor, DLF Building No. 10, Tower A, DLF Cyber City, Phase - III, Gurgaon - 122 002, India, Phone: +91 124 235 1541, Fax: +91 124 235 1601 • Metso Perú S.A. Calle 5 Nro. 144,...