Fine ore iron remover

Magnet is divided into natural magnet and artificial magnet. Artificial magnet is divided into two kinds, one is permanent magnet, the other is electromagnet. The difference between the two is that the permanent magnet is made of magnetic materials (such as magnetic alloy, ceramic magnet, etc.), while the electromagnet is wound with a coil outside the iron core, which generates magnetism through direct current and disappears immediately after power failure. Permanent magnets are commonly used. The iron remover made of permanent magnet is called permanent magnet iron remover, which is commonly used in black concentrator. Electromagnet is often used in electromagnetic equipment with low field strength, such as magnetic screen and pulsating electromagnetic separator. The magnetic field of iron remover is a necessary condition to realize magnetic separation. Magnetic field can be divided into uniform magnetic field and non-uniform magnetic field. The degree of non-uniformity of magnetic field is expressed by magnetic field gradient, which is the change rate of magnetic field strength along space (that is, the change of magnetic field strength per unit length). The larger the magnetic field gradient is, the greater the degree of magnetic field inhomogeneity is, that is, the greater the spatial variation rate of magnetic field intensity is. The magnitude of magnetic force on magnetic particles is proportional to the proct of magnetic field intensity and magnetic field gradient. If the gradient of magnetic field is equal to zero (no matter how high the intensity of uniform magnetic field is, the gradient of magnetic field is equal to zero), then the magnetic force of magnetic particles is zero, and magnetic separation can not be carried out. Therefore, the non-uniform magnetic field is used in the iron remover
in a uniform magnetic field, the intensity and direction of the magnetic field at any point are the same, and the magnetic force acting on the magnetic particles is uniform. At this time, the particles are in a state of balance, so the purpose of separation can not be achieved
in the non-uniform magnetic field, the size and direction of the magnetic field intensity are different. At this time, the magnetic force acting on the magnetic particles is not uniform. Therefore, the magnetic particles move under the action of magnetic force to achieve the purpose of separation

Iron separator, also known as magnetic separator. It generally refers to the non-metallic selective magnetic separator, which is used to remove iron and other magnetic substances from raw materials. It is commonly used in ceramics, mining, chemical instry, grinding and other instries. For example, in the mining instry, large and medium-sized magnetic separators are generally used for roughing of raw materials, and the iron content of raw materials after roughing is reced to a certain extent, which can be used in some instries with low requirements for iron content. In the case of high demand for iron content, it is necessary to use the iron remover to select and remove iron from the raw material after roughing, or even remove iron several times to meet the requirements. Can also be understood as a small iron separator, usually in the case of small raw material handling capacity, is also the use of iron separator

What is the iron removal process of iron remover
magnetic separation is carried out according to the difference of magnetic properties of mineral particles. When the mineral particles and gangue particles pass through the magnetic field of the iron remover, they move in different ways under the action of the magnetic field e to the different magnetic properties of the mineral particles. The magnetic particles are attracted by the magnetic force and adhere to the cylinder of the iron remover. When they are brought to a certain height by the cylinder, they are separated from the magnetic field and washed down from the cylinder with high-pressure flushing water. The non-magnetic particles (gangue particles) are not attracted by the magnetic force in the magnetic field of the iron remover, so they cannot adhere to the cylinder. There are two kinds of procts in the iron remover, one is magnetic procts into tailings tank, the other is non-magnetic procts into concentrate tank

Magnetic separation is the main beneficiation method of iron ore. The common iron minerals are magnetite (belonging to strong magnetic minerals), hematite, limonite, Specularite, siderite (belonging to weak magnetic minerals), etc. they are raw materials for iron and steel instry. The grade of iron ore in China is low, and the impurity content is mostly high, so more than 80% of them need magnetic separation
manganese minerals such as hard manganese ore, pyrolusite and rhodochrosite also have weak magnetism, which are usually recovered by magnetic separation
ilmenite, wolframite, monazite and Nita are all weakly magnetic minerals, which are also commonly recovered by magnetic separation
if the above examples are all based on the recovery of magnetic minerals as target minerals (i.e. magnetic minerals as concentrates), then iron, titanium and other mineral impurities are regarded as harmful components in the beneficiation of non-metallic minerals, which are generally removed by magnetic separation. For example, kaolin, kyanite, quartz, feldspar, tourmaline and other mineral processing generally use magnetic separation method to remove iron and titanium minerals
If ferrosilicon or magnetite is used as additive in dense medium beneficiation, magnetic separation is a simple and effective method to recover the additive, which is commonly used in coal preparation plants
when crushing ore, if the crushing cavity of the fine crusher enters the iron, the crusher will be damaged. Magnetic separation is commonly used to remove the iron from the material. In the treatment of "three wastes" such as waste resie, waste water and waste gas, the useful components can be comprehensively utilized to protect the environment, and magnetic separation can also be applied. For example, there are magnetic separation methods for steel slag recovery in iron and steel plants, fly ash treatment in power plants, and wastewater treatment in steel plants
magnetic fluid separation is a new technology of magnetic separation, which uses the "quasi aggravating" effect of magnetic liquid in the magnetic field to proce great magnetic buoyancy on the immersed objects, and can separate objects with different densities. In the United States, Japan and other countries, magnetic fluid separation method is used to treat automobile waste, while in China, it is mainly used for diamond processing

1. Sorting magnetic materials in river sand, mainly sorting river sand with more iron, and procing according to different grades of iron sand. The tributaries of Yangtze River, Yellow River and Pearl River contain more iron
2. For sorting non-ferrous metals, there are still many iron components in the crust, among which the oxygen silicon aluminum iron is the leading component, and there are many aluminum pins in the lathe, which need to be separated, so the iron remover can be used for sorting. Copper powder absorbs iron, zinc powder, aluminum ash, etc
3, scrap iron absorption, wood scrap, carton scrap iron absorption
4. Grinding wheel ash, slag, food, grain, instrial waste and other instries can be used

The working efficiency of the belt type iron remover depends on what mineral it deals with. It is easy to operate and easy to use. The magnetic source is neodymium iron boron material, and the magnetic device is large. Overall, it is not bad