the electromagnet is characterized by what

the electromagnet is characterized by what
Electromagnet has many advantages: you can use the presence or absence of magnetic solenoid off through current control; magnetic size can use the current strength or coil turns to control; also change the resistor to control the size of magnetic control current drum separator size; it The pole can be controlled to change the direction of the current, and so on. Namely: the strength of the magnetic can be changed to control the presence or absence of magnetism, the magnetic pole direction can be changed, the current may be due to the disappearance of the magnetic disappear.

he electromagnet works

Solenoid is energized to produce a magnetic, like a magnet can be adsorbed ferrous objects. Electromagnet can be applied to a variety of areas, such as large amusement equipment, automotive, aerospace, industrial, and other undertakings. Common applications such as solenoid: punch the time clock at work, the supermarket cash register, Drawer magnets  enter the number of units of automatic doors. These electromagnets by the magnetic field energy is converted, and then the magnetic force generated by the magnetic field acting on the center of the electromagnet core, the core movements. The main application is the core of the electromagnet forces generated by movement. This can be done a few grams minimum force tens of grams, in theory, can do infinitely large, basically able to do almost a hundred kilograms. The magnetic effect of the current is the current that the magnetic field around the. The electromagnet is energized, the current through the coil generates a magnetic field, the magnetic field generated in the core operation.

 making the solenoid
Energy-saving production methods electromagnet

Electromagnet pull the moment, you need a larger current, and in the pull after the retention period, requiring only a small holding current. This feature combined with the electromagnet, the author developed a pull, hold function dual coil solenoid control circuit as shown in drawings.
Circuit, D1 for the rectifier diode, D2, D3 is the freewheeling diode. U1 is BT33, triggered by the single-junction transistor, R1 limiting resistor and so on. L1 is the holding coil, wire wound with φ0.2mm, DC resistance 290Ω; L2 coil is energized with Φ0.51mm enameled wire, DC resistance 19Ω. U1 and R1 together form the suction coil control drum separator circuit, C1, V4, N2 delay control circuit, and the like.

By the AC_A and AC_C input voltage 380V AC, half-wave rectified by D1 and R1 after limiting power supply for the control system. After the system is energized to keep the coil L1 is energized for a while by R1 and R2 E1 charging. In the initial period of energization, C1 voltage is less than 1.5V, the transistor N2 is off, R5, C2, and a thyristor trigger circuit U1 is configured to work, so that thyristor T1 is turned on, pull coil L2 is working. After about 0.4s, C1 rises above the voltage of 1.5V, the transistor N2 is turned on, the base voltage U1 is lower than the operating voltage, the SCR trigger circuit is stopped, T1 is disconnected, L2 and stop working because of loss of power . The power within the first 0.4s, L1, L2 simultaneously, suction force max. Thereafter, only the L1 work, maintain system pull.Drawer magnets  Changes in the value of R5 and C2, L2 adjustable operating current.

Suction force applied to the control circuit of the electromagnet is 30kg, suction timely powerful, while maintaining state can maintain sufficient suction force. I use a magnetic core by 18mm, core length 20cm, here provided only a design approach.

the application of the electromagnet

the application of the electromagnet
Electromagnets in everyday life has an extremely wide range of applications. Electromagnet is a current magnetic effect (electrophysiological magnetic) of an application, and life are closely connected, such as electromagnetic relays, magnetic crane, magnetic levitation trains. DC solenoid and electromagnet can be divided into two major drum separator  types of AC solenoids. If in accordance with the purpose to divide the electromagnet can mainly be divided into the following five categories: (1) traction magnet - mainly used for traction mechanism, open or close valves, automatic control tasks to perform. (2) lifting magnet - used as a lifting device for lifting steel ingot, steel, iron ore and other ferromagnetic materials. (3) brake solenoid - mainly used for braking the motor in order to achieve accurate parking purposes. (4) Automatic electrical electromagnetic system - such as electromagnetic relays and contactors electromagnetic system, automatic switch and operation of the electromagnetic solenoid release and so on. (5) other uses electromagnets - such as grinder magnetic chuck and electromagnetic vibrator.

resolve to withstand greater fluctuations in ore and quartz ore slurry separator effective measures

Magnetic separator beneficiation production equipment is indispensable to use tools, quartz ore magnetic separator equipment service production to meet production requirements. Quartz ore magnetic separator market

Needs, determine the development of industry, which is slowly took a few years of industrial rapid development of a new attitude, speed up the pace of modernization. Quartz ore magnetic separator can sorting

Many minerals, such as: magnetite, limonite, hematite, manganese, siderite, ilmenite, wolframite, manganese carbonate, manganese, metallurgical manganese ore, manganese oxide, iron

Sands, kaolin, quartz rare earth ore mining and so can be used to select another separator. Cylinder by a 2-3mm stainless steel plate welded into a tube, cover the cast aluminum parts, stainless steel screws

And the tube is connected. Magnetic Grate Progressive processing product quality, reduce costs, improve production efficiency.

     Quartz ore magnetic separator beneficiation operations according to demand in the industry, applications should meet some of the characteristics of the industry in order to better carry out processing operations, quartz ore magnetic separator

Equipment and technology with industry applications, according to the technical characteristics of the beneficiation process, it has a kind of industry demand, quartz ore magnetic separator as a mineral processing equipment, according to the

Processing operations to the actual needs, and its magnetic separation process should have the characteristics of what conditions do the following for you to analyze in detail the quartz ore magnetic separator technical characteristics, with the

IDM operating conditions.

     Quartz ore magnetic separator is widely used in the chemical industry, building materials, refractory plants, power plants and other industries has a significant role, with its high efficiency, low investment, appropriate

Should be strong, simple structure, large capacity, easy to operate, easy to maintain, low grade tailings recovery of higher strengths, our customers of all ages.

     Tailings eliminate the system's role is to choose to go iron sand routed away from the tail where the machinery in order to ensure the normal work of the mechanical energy. Motor through reducer,

Driven cylinder for rotary motion. Beneficiation production line is now commonly used in quartz ore magnetic separator equipment is mainly used in the re-use powdered iron removal mitochondria, etc. The device is also

It can be widely used for recycling, timber, mining, ceramics, chemicals, food and other plants, together for the granularity below 3mm magnetite, pyrrhotite, roasted ore

, Ilmenite and other materials, magnetic separation, but also for coal, non-metallic minerals, building materials and other materials, iron homework, it can be said that the device is the industry's most widely used high versatility

One of the models, quartz mineral ore magnetic separator strive China's rookie.

    Quartz ore mining mineral separator equipment is essential for the production of equipment, the use of magnets of different magnetic materials magnetic system for sorting, Henan Yu Fasheng quartz ore production

Strong magnetic separator equipment for mineral materials adaptable, so its wide range of applications. Quartz ore magnetic separator equipment quality is every vendor can not be ignored, a

Once a quality problem, its impact and the loss is unthinkable. In any period will not relax on quartz ore magnetic separator equipment quality control and attention

Doing so is not only responsible for the majority of customers, but also on their own responsibility, socially responsible.

    Quartz ore magnetic separator needs a lot of technical operating conditions, according to the actual needs of processing operations, quartz ore magnetic separator tailings flow channel division is run after overflow

Fine-grained or fine mud tailings and tailings underflow orifice then ran coarse rock gangue, suitable for roughing coarse magnetite slurry has a particle size distribution is very wide, coarse vary widely

Or the characteristics of a high clay content, Oita sorting room, high-mineral surface, multi-tail flow channel, the quartz ore magnetic separator can withstand large amounts of ore slurry volume and volatility.

limonite magnetic separator magnetic materials research breakthroughs on the continuous optimization

Permanent magnetic drum magnetic separator device can replace the application of the process, with the domestic and foreign mining companies in the automatic control technology and control technology, mining equipment manufacturing

Level of automation is also a corresponding increase, and magnetic separation equipment in the field of magnetic mineral separation hamper the accuracy requirements are also increasing. When dry magnetic separator should have enough open gear

Enough oil, while bearing cap hole injection, then at least once every three months have oiling, as this will ensure the life of the machine, cost savings while improving the efficiency

Rate.

Both uses magnetic source is not the same, weak magnetic separation equipment to use more permanent magnets for magnetic source, mainly from the energy departure. The strong magnetic field magnetic separation equipment to use electromagnetic

Magnetic source, which is the electromagnetic field strength of the magnetic source can be designed very high, and generally low field strength of the permanent magnet, the magnetic field strength may not meet the requirement. Adoption

Permanent magnet strong magnetic separator, requires the use of new high-performance permanent magnets. With the domestic research breakthroughs magnetic, magnetic separation equipment industry as well as the traditional permanent magnetic separator

Magnetic system and the body structure of the continuous optimization, upgrade and improve, speed up the permanent magnetic separator device and gradually replace the electromagnetic process of magnetic separation equipment.

Always check the wear layer on the cylinder case. For loosening or breakage, timely disposal and repair, when the repair time, tailings recycling machines decapitated at this time

Of the strip and the cylinder surface should be sanded clean, and then use the glue stick firmly.

With the social development of magnetic tray science and technology, the emergence of high-performance permanent magnet materials, machining technology is getting more sophisticated, assembly and automation technology continues to improve control technology

Continuous improvement and promotion, combined with the practical needs of mine production, making the magnetic separation equipment upgrades further accelerated. Equipment automation technology; automation technology

Accelerate the industrial development especially in the increase in productivity, and therefore magnetic separator automation technology to meet the need to constantly reinforce the need for automated production of mining enterprises.

Under normal circumstances, it should be ready to remove the pulp of wire rod head or the like, so in order to avoid a small amount to the mine when the time, these things may be with or without

Up, then the drum skin will soon be worn or scratched on production and costs are negative. At this point if there is foreign matter on a cylinder, you can stop time by observing both ends

Hole inspection. Since large-scale magnetic separation equipment cause of the rapid development of mining and the production of construction on the increased demand for mineral resources, mining equipment manufacturing industry are not

Constantly expanding, difficult to adapt to face common equipment and gradually expand the production capacity of the mine situation, mining equipment manufacturer dedicated to the research and production of large-scale magnetic separation equipment

.

Updating of equipment; ensure good lubrication is the key to extend its service life. Dry magnetic separator when open gear lubricant should be sufficient,

While bearing cover hole injection, then at least once every three months, you have to grease, as this will ensure the life of the machine, saving costs while improving efficiency.

Magnetic Separator in rougher tailings slurry with a high concentration when the characteristics of understanding, under normal circumstances, it should be ready to remove the pulp of wire rod head or the like

So in order to avoid a small amount to the mine when the time, these things may not come up with, then the tube will soon be worn or scratched leather production and cost are negative. This

When the cylinder is a foreign body, you can shutdown observation hole through both ends of the inspection. Ore magnetic separator has the following six characteristics:

1, to the mine rinse water to make a slurry into a high concentration can be diluted and adequate separation, magnetic separation to make a good effect, the magnetic separator for coarse-grained magnetite coarse

Select the slurry having a high concentration feature. Magnetic separator tailings flow channel division is running fine before and after the overflow or fine mud tailings and tailings underflow orifice then ran around coarse particles

Stone dykes, suitable for roughing coarse magnetite slurry has a particle size distribution is very wide, coarse or very different characteristics of the high clay content.

2, the downstream groove, making pulp larger particle size, which does not cause heavy coarse groove plug, suitable for coarse-grained magnetite mineral rougher when coarser features.

3, because the equipment sorting drum surface field strength is high, the pulp can be given directly to the ore bucket sorting higher field strength cylinder surface area, making it difficult to be adsorbed and easy flow of the magnetic

Lost in the coarse tailings iron with the living body, the higher magnetic force can be effectively adsorbed on the surface of separation tube. 4, magnetic separator has a higher surface mine, the larger the magnetic wrap angle

Makes sorting with a long, iron magnetic minerals are adsorbed recovered fully, so magnetic material high recovery rate. Separator applications currently expanding scope and

Mineral separation degree of refinement to improve, the need to strengthen magnetic separator sorting features that make it widely used in various fields, expand the application fields. Always check on the cylinder

The wear layer situation.

5, Oita sorting room, high-mineral surface, multi-tail flow channel, so that magnetic separator can withstand large amounts of ore slurry volume and volatility.

6, for loosening or breakage, timely disposal and repair, when the repair time, tailings recycling machines at this time decapitated cylindrical surface strip and sand should be used

Paper polished clean, and then use the glue stick firmly.

the characteristics of the electromagnet

the characteristics of the electromagnet
The nature of its coil current can be divided into AC DC solenoid and electromagnet; according to different uses can be divided into traction magnet, brake magnet, lifting magnet and other types of special electromagnet. Traction magnet mainly used for automatic control apparatus for pulling or repulsive mechanical devices, in order to achieve the purpose of automatic control or remote; brake solenoid is used to operate the brakes, the brake in order to complete the task electromagnet; electromagnetic lifting Iron is used for lifting, carrying heavy loads ferromagnetic electromagnet. 3. Electromagnet different depending on the power supply, the following three: ① AC solenoids. AC solenoid valve voltage is generally used AC 220V, electrical wiring configuration is simple. AC solenoid actuation force is large, the commutation time is short. But reversing the impact of large, Drawer magnets working temperature rise (housing with cooling ribs); when the spool is jammed, the electromagnet easy to burn out due to excessive current, less reliable, so the switching frequency must not exceed 30 times / min short-lived. ② DC solenoids. DC 24V DC voltage solenoid general use, requiring dedicated DC power supply. The advantage is that the core will not get stuck and burn (its cylindrical shell without cooling ribs), small, reliable, allows switching frequency is 120 times / min, reversing the impact of small, long service life. But starting force smaller than AC electromagnet. ③ This integer electromagnet. The integer represents the local AC rectifier. The electromagnet itself with half-wave rectifier, AC power can be directly used at the same time, a DC electromagnet structure and properties. 1, first power supply design, namely the voltage across the coil. DC power supply is recommended, because the DC current can guarantee stable suction times, no alternating. Magnetic attractive force between the small of your design, you can choose 5-12V DC power supply (voltage greater the reaction faster). 2, winding group of materials selection, if the design requires winding group of light weight, you can choose enamelled wire. Generally, the selection enamelled copper wire, because the low resistance of copper. 3, consider the group of heating wire, there is a resistance of the winding group, the heating power P = U * U / R (U is the supply voltage). 4, the selection of a suitable conductor cross-sectional area as the winding pack. 5, the magnetic force Fα magnetic induction B, the BαI * N (product of current and the number of turns), and I = U / R, and RαN. (Complex bars, simplify) the specific formula: B = u * I * N / 2; R = ρ * L / S = ρ * π * D * N / S; (u is the magnetic permeability of the wheels, ρ the wire resistivity, S is the cross sectional area of ​​the wire, D is the average diameter of the coil ≈ 32mm, N ≈ 0.85 * (20-12) * 33.5 / S, L is the conductor length. Notes: S units of mm; ρ The unit is ohm mm) are: B ≈ 0.59 * u * S / ρ (as long as it can be seen winding a certain area, B, and N contents) to see coil heating power: P = U * U / Rα (S ^ 2 ); therefore try to take a small conductor cross-section S, but S is too small will lead to changes in magnetic force is slow.