The magnetic separator machine is a very important part of the mineral processing process. The reasonable, advanced, and efficient magnetic selection equipment determines the advantages and disadvantages of the mining process process. The research on the basic selection equipment can make the mineral selection process more optimized. The call of global resource integration indicates the advent of the era of large mining, and concentrated crushing and centralized sorting may become the trend of the future mining industry. With the increasing lack of mineral resources and the continuous improvement of output requirements, the sorting requirements of minerals in the future will continue to increase.
Global magnetic minerals are extremely uneven. Modern craftsmanship meets the process requirements for the separation of magnetic minerals. Magnetic selection technology should be expanded in multi -direction, and multi -force venue selection technology under the dominance of the magnetic field should be studied. In the design of magnetic selection equipment design, wind, centrifugal force, gravity, electric field power, water ability and other mechanical factors that are beneficial to the separation of materials are helpful for the separation of materials. , So as to achieve the purpose of efficient sorting.
With the deepening of mining changes, the mining market’s emphasis on energy conservation and consumption reduction continues to increase. Although magnetic selection equipment is a cleaning method, magnetic selection equipment inevitably consumes a lot of electricity and water. Therefore, the upgrading of magnetic selection equipment is also an important part of energy conservation and consumption reduction. Magnetic selection is one of the material separation processing technology, and has been widely used in many industrial fields. In the field of mineral processing, magnetic selection technology has made great progress. Due to the development of permanent magnet materials, the improvement of the performance of permanent magnet materials, and the gradual increase of permanent magnet magnetic capacity, it has developed a leap -up development. The structure of the magnetic selection machine is diverse, and there are many classification methods. According to the magnetic field strength, it is divided into weak magnetic field magnetic selection machines, medium magnetic field magnetic selection machines, and a strong sulfur field magnetic selection machine; according to the selection medium, it is divided into a magnetic selection machine and a wet magnetic selector; Machine, electromagnetic magnetic selection machine.

What are the models of the magnetic selection machine?

1.Dry -type strong magnetic field magnetic selection machine
It has been used in industry for more than 50 years in the dry -type strong magnetic field magnetic selection machine, which is mainly used for sorting of coarse granular minerals. With the development of rare earth permanent magnet materials, a permanent magnetic elevation machine with a higher magnetic field electromagnetic magnetic selection machine is manufactured. Although the magnetic induction strength is not easy to adjust, it can be reasonably selected by the permanent magnet material and optimized the geometric shape of the spokes, and designed a raised magnetic selection machine that can handle different particle size and different ratio of magnetic coefficient materials. The weight and size of the permanent magnetic roller magnetic selection machine are smaller than the electromagnetic induction raised magnetic selection machine, and there is no air gap. It can handle large particles and make the permanent magnetic roller magnetic selection machine achieve great results in terms of technology and economy. On the one hand, you can apply magnets of different grades and sizes to reduce costs. Second, you can use electromagnet modeling software to optimize magnet design. For weak magnetic iron ore dry pre -selection, in recent years, the dry -type strong magnetic field magnetic selection machine has replaced the re -election equipment, which has improved the pre -selection indicators significantly improved.

2.Dry magnetic field magnetic selection machine
The main use of dry magnetic field magnetic selection machines is to remove iron dumbs and strong magnetic impurities, or to enrich the strong magnetic useful components. The suspended magnets, magnetic pulleys, plate -like magnets, or block -like magnets are generally used to remove iron dumbs and strong magnetic impurities, while magnetic drums are mainly used to enrich strong magnetic useful components. At present, the mines in my country are pre -selected for strong magnetic minerals. Using a block of ore -drying weak magnetic selection before rough, medium crushing, fine fragmentation, and grinding can throw more than 80%of the waste stones mixed into the ore, increase the grinding capacity, improve the grinding ore taste, reduce Energy consumption.

3.Wet magnetic field magnetic selection machine
So far, the most commonly used wet -type weak magnetic field magnetic selection machine is a tube magnetic selection machine. With the emergence of Qin Tie -boron permanent magnet materials, the permanent magnetic selection machine almost completely replaced the electromagnetic drum magnetic selection machine. This magnetic selection machine is mainly used to recover the medium in heavy medium mining, such as magnet ore and silicon iron. Rich magnetic minerals are another use of this magnetic selection machine. The further improvement of the use of rare earth permanent magnets and the nature of the nature of the wet cylindrical magnetic selection can be expanded to the sorted magnetic material, and even the weak magnetic material. There are two designs of the magnets of the permanent magnetic tube magnetic selection machine: radial configuration and axial configuration. In the radial configuration, the polarity of the permanent magnet is alternately changed in the width direction of the cylinder. In the axial configuration, the polarity of the permanent magnet changes along the circular of the cylinder. The radial configuration is generally used to increase the recovery of strong magnetic materials. The changes in the polarity of the axial configuration of the magnets make the sorting particles rolling on the surface of the magnet, so that the non -magnetic particles of the clamping strap are released from the magnetic product, which can improve the quality of the magnetic concentrate. Wet simple magnetic selection machines are the main optional equipment for strong magnetic iron ore. At present, it has made great progress in mining methods, magnetic design, grooves, transmission mechanisms, and large -scale, dedicated, and efficient.
Selection equipment of strong magnetic iron ore currently has low -field strong multi -pole magnetic selection machines, bumping machines, magnetic selection columns, vertical pulse vibration magnetic field magnetic selection machines, low -field strong pulse dynamic magnetic selection machines, low -field strong self -heavy self -weight Jumping machine and so on. Its common feature is to use the combination of weak magnetic fields and gravity fields to remove the pulse stones that are mixed with magnetic mixed and improve the precision of concentrate iron. More, the selection effect is good.

4. Wet strong magnetic field magnetic selection machine and high gradient magnetic selection machine
Introducing the medium into the magnetic circuit of the magnetic selection machine can make the magnetic selection method that can not be selected in the past that it is considered that the size is too thin and the magnetic is too weak. Jones studied in 1960, and he combined the magnetic Francez concept with a strong magnetic field. A more advanced magnetic selection machine based on JNES is SALA high gradient strong magnetic selection machine. Although the design and manufacture of a variety of multi -cycle and continuous wet high gradient strong magnetic selection machines, only a few magnetic selection capabilities can meet the requirements of the mining industry. The purity of kaolin and the mineral selection of iron and sand ore is an example of the successful application of this magnetic selection machine. Fine -grained weak magnetic iron ore needs to be sorted with strong magnetic selection equipment. At present, there are two types of domestic iron ore selection factories: SHP type and SLON type. The typical representative of this type of device is the high gradient magnetic selection machine of the rings pulse. It is a high -efficiency magnetic selection equipment suitable for sorting fine -grained weak magnetic minerals. The pulse mechanism has the advantages of large -scale enrichment ratio, high sorting efficiency, and not easy to block the magnetic agency. It has the advantages of giving grain size, concentration and quality fluctuations, reliable work, and convenient operation and maintenance.

5. The application of superconducting technology in magnetic selection
Although superconducting technology is of great significance to the magnetic selection process equipment, its importance in magnetic selection seems to have not yet shown. Because the demand for more than 2T magnetic induction strength is not obvious, the main advantage of superconducting magnets is to reduce energy consumption and reduce the weight of the magnetic selection machine. The superconducting magnet can also be applied to the open gradient spiral tube configuration without the medium, which can generate strong magnetic force in a large volume. Except for the oxide of the weak magnetic iron and bowl of the quasi -colloidal collagen to purify the kaolin, it is the main purpose of the superconducting high gradient strong magnetic selection machine.
In recent years, the large -scale application of rare earth permanent magnets has greatly accelerated the permanent magnetization process of magnetic selection equipment. Due to the use of high -tech and the development of automated control, the sorting accuracy of magnetic selection equipment is getting higher and higher. It is mainly in terms of improving the accuracy of sorting, expanding application areas, increasing processing capabilities, adopting new magnetic materials, energy saving and consumption reduction. Equipment large -scale, dedicated and energy -saving is the focus of the future development trend of magnetic selection equipment and market competition.