Mechanical Knowledge Base: "Magnetic Separator"

Definition : Sorting machinery based on the difference in magnetic properties of materials.

Magnetic separator is used to remove iron powder in the reuse of powdered particles, magnetic separators are widely used in resource recovery, wood industry, mining, kiln, chemical, food and other workshops, applicable to magnetic materials with a particle size of 3mm or less Wet magnetic separation of iron ore, pyrrhotite, roasted ore, and ilmenite is also used in the iron removal of coal, non-metal ore, and building materials. It is the most widely used and widely used in the industry. One of the models.

The magnetic separator is one of the most widely used and highly versatile models in the industry. It is used in the removal of iron powder in powdered granular materials. Magnetic separators are widely used in resource recovery, timber industry, mining, Kiln, chemical, food and other workshops. The magnetic separator is applicable to the wet magnetic separation of magnetite, pyrrhotite, roasted ore, ilmenite and other materials with a particle size of less than 3mm. It is also used for iron removal of coal, non-metal ore, building materials and other materials. The magnetic system of the magnetic separator is made of high-quality ferrite material or composite with rare-earth magnetic steel. The former cylinder has an average magnetic induction of 100-600mT. At present, due to the development of technology, the magnetic separator can be made into a roll shape, and the magnetic field strength is also increased to 1644.3T. It is already the highest magnetic field strength currently measured.

Magnetic separator classification introduction

Magnetic separators Magnetic separators can be used to sort many minerals such as magnetite, limonite, hematite, manganese siderite, ilmenite, wolframite, manganese ore, manganese carbonate ore, manganese metallurgy, manganese oxide ore, Iron ore, kaolin, rare earth minerals, etc. can be selected by magnetic separators. The magnetic separation process is performed in the magnetic field of the magnetic separator by means of the action of magnetic force and mechanical force on the ore particles. Different magnetic ore particles move along different trajectories, so that they are sorted into two or more separate ore dressing products.

According to the type of magnets can be divided into: permanent magnetic separator and electromagnetic iron remover

In accordance with the classification of dry or wet mines can be divided into: dry iron removal machine, wet iron removal machine

Classification according to the magnetic system can be divided into: cylinder magnetic separator machine, roller magnetic separator machine and cylinder roller magnetic separator machine.

Classification according to the magnetic quantity can be divided into: single cylinder magnetic separator, double cylinder magnetic separator and combined multi-barrel magnetic separator.

According to the way of giving ore, it can be divided into: the upper magnetic separator for ore, the lower magnetic separator for mine.

According to the classification of magnetic field strength can be divided into: weak magnetic separator, magnetic separator and magnetic separator.

In accordance with the classification of magnetic systems can be divided into: open magnetic separator, closed magnetic separator.

Wet magnetic cylinder magnetic separator is a kind of magnetic separator commonly used in iron ore dressing plant. It is suitable for selecting strong magnetic minerals. According to the structure type of the tank body, the magnetic separator is divided into three types: the forward flow type, the counter flow type, and the semi-counter flow type. The particle size of the selected three magnetic separators is as follows: downstream tank ≤ 6mm, counterflow tank ≤ 1.5mm, semi-counterflow tank ≤ 0.5mm.

Magnetic separator The forward flow magnetic separator has a large processing capacity and is suitable for rough selection and selection of coarse-grained ferromagnetic materials. It can also work in multiple series. When the forward flow magnetic separator has a large amount of ore, the magnetic ore particles are easily lost to the tailings, so it is necessary to strengthen the operation management and control the level of the lower pulp.

Counter-flow magnetic separator is suitable for rough selection and sweeping operations of fine-grained and ferromagnetic minerals with high recovery rate but low concentrate grade. Because the coarse-grained material is easy to deposit and block the sorting space, the counter-flow magnetic separator is not suitable for processing coarse-grained materials.

The semi-countercurrent magnetic separator can obtain high-quality iron ore concentrate, and can also obtain better recovery rate, so the semi-countercurrent magnetic separator is widely used in the production practice. It is suitable for rough selection and selection of ore pellets below 0.5 mm. It can also be used in multiple series and parallel connections to achieve multiple sweeps and selections.