magnetic separator and how it works

how does a magnetic drum separator work? | drum magnets

how does a magnetic drum separator work? | drum magnets

A uniform product flow is introduced to the magnetic drum separator using a vibratory feeder or conveyor. The material enters the top of the housing and flows across the surface of the drum. As the drum shell rotates around the stationary magnetic field, all non-ferrous material, which is unaffected by the magnet, falls free from the magnet into the cleaned flow. All ferrous tramp metal is captured by the magnetic field and is held onto the drums surface. As the drum rotates, the metal is carried past the diverter and released outside of the magnetic field for collection and disposal.

magnetic separation - an overview | sciencedirect topics

magnetic separation - an overview | sciencedirect topics

Magnetic separation takes advantage of the fact that magnetite is strongly magnetic (ferromagnetic), hematite is weakly magnetic (paramagnetic), and most gangue minerals are not magnetic (diamagnetic).

The current research and development initiatives and needs in magnetic separation, shown in Fig. 7, reveal several important trends. Magnetic separation techniques that have been, to a greater extent, conceived empirically and applied in practice, such as superconducting separation, small-particle eddy-current separation, and biomedical separation, are being studied from a more fundamental point of view and further progress can be expected in the near future.

In addition, methods such as OGMS, ferrohydrostatic separation, magnetic tagging, and magnetic flocculation of weakly magnetic materials, that have received a great deal of attention on academic level, are likely to enter the development and technology transfer stages.

The application of high-Tc superconductivity to magnetic separation, and novel magnetism-based techniques, are also being explored, either theoretically or empirically. It can be expected that these methods, such as magnetic flotation, magnetic gravity separation, magnetic comminution, and classification will take advantage of having a much wider control over these processes as a result of the presence of this additional external force.

Magnetic separation takes advantage of the fact that magnetite is strongly magnetic (ferromagnetic), hematite is weakly magnetic (paramagnetic), and most gangue minerals are not magnetic (diamagnetic). A simple magnetic separation circuit can be seen in Figure 1.2.5 [9]. A slurry passes by a magnetized drum; the magnetic material sticks to the drum, while the nonmagnetic slurry keeps flowing. A second pass by a more strongly magnetized drum could be used to separate the paramagnetic particles from the gangue.

Magnetic separation can significantly shorten the purification process by quick retrieval of affinity beads at each step (e.g., binding, wash, and elution), and reduce sample dilution usually associated with traditional column-based elution. The method can be used on viscous materials that will otherwise clog traditional columns and can therefore simplify the purification process by eliminating sample pretreatment, such as centrifugation or filtration to remove insoluble materials and particulates. The capability of miniaturization and parallel screening of multiple conditions, such as growth conditions for optimal protein expression and buffer conditions for purification, makes magnetic separation amenable to high-throughput analysis which can significantly shorten the purification process (Saiyed et al., 2003).

Paramagnetic particles are available as unmodified, modified with common affinity ligands (e.g., streptavidin, GSH, Protein A, etc.), and conjugated particles with specific recognition groups such as monoclonal and polyclonal antibodies (Koneracka et al., 2006). In addition to target protein purification, they can also be used to immobilize a target protein which then acts as a bait to pull down its interaction partner(s) from a complex biological mixture. See Chapter 16.

Magnetic separation of cells is a simple, rapid, specific and relatively inexpensive procedure, which enables the target cells to be isolated directly from crude samples containing a large amount of nontarget cells or cell fragments. Many ready-to-use products are available and the basic equipment for standard work is relatively inexpensive. The separation process can be relatively easily scaled up and thus large amount of cells can be isolated. New processes for detachment of larger magnetic particles from isolated cells enable use of free cells for in vivo applications. Modern instrumentation is available on the market, enabling all the process to run automatically. Such devices represent a flexible platform for future applications in cell separation.

IMS play a dominant role at present but other specific affinity ligands such as lectins, carbohydrates or antigens will probably be used more often in the near future. There are also many possibilities to combine the process of cell magnetic separation with other techniques, such as PCR, enabling the elimination of compounds possibly inhibiting DNA polymerase. New applications can be expected, especially in microbiology (isolation and detection of microbial pathogens) and parasitology (isolation and detection of protozoan parasites). No doubt many new processes and applications in other fields of biosciences and biotechnologies will be developed in the near future.

Magnetic separation methods are widely used for isolation of a variety of cell types. Magnetic particles with immobilized antibodies to various antigens have been employed for the rapid isolation of populations T-(CD4 +, CD3 +, CD8+) and B- (CD19+) of lymphocytes, NK cells, and monocytes. Similarly, immobilization of glycoconjugates on magnetic beads allows the isolation of cell populations expressing a particular carbohydrate-recognizing molecule [19, 20]. Glycosylated magnetic beads can be prepared by loading biotinylated probes onto streptavidin-coated magnetic beads. The glycoparticles are then incubated with a cell suspension and the subpopulation of interest is fished out by means of a magnetic device [20].

When these materials are used in the biological field, special restrictions should be considered and all possible reactions with the biological materials should be predicted. Magnetic properties should be maintained for a specific time during the test. Some applications can be classified as follows:

Magnetic separation is used for clinical application, such as in the separation of proteins, toxemic materials, DNA, and bacteria and viruses. This is also used for real time detecting of viruses. The most important stage in this field is the labeling of molecules with magnetic materials by a reliable connection. Magnetic beads from iron oxide are typically used for biological separation. The main properties of iron oxide are super paramagnetic properties (Meza, 1997).

Effective drug delivery can greatly improve the process of treatment and reduce side effects. In this method, while the amount of drug decreases, the concentration of the drug in the target area increases. Protecting the drug before its gets to the target area is one of the most important factors, because after releasing the drug in the blood stream, white cells detect the drug and swallow them in a short time. An ideal nanoparticle for drug delivery should have the potential to combine with a relatively high-weight drug and disperse uniformly in the blood stream (Shultz et al., 2007).

Also, while chemotherapy is one of most effective methods for cancerous tissues, many of the other healthy cells are destroyed in the process. So the conventional thermotherapy has many side effects. In hyperthermia treatment, after delivering the drug to the target area, an AC magnetic field is used to generate controllable energy and increase temperature. Heat transfer in this process is a balance between blood flow, heat generation, and tissue porosity and conductivity (Sellmyer and Skomski, 2006).

Magnetic Resonance Imaging (MRI) is considered a great help in the diagnoses of many diseases. The advantages of this imaging are high contrast in soft tissue, proper resolution, and sufficient penetration depth for noninvasive diagnosis. In fact, in MRI imaging magnetization of protons is measured when exposed to the magnetic field with radio frequency (Corot, 2006).

Magnetic separation: based on the generation of magnetic forces on the particles to be separated, which are higher than opposing forces such as gravity or centrifugal forces. This principle is used to separate ferromagnetic particles from crushed scrap mixtures.

Eddy current separation: is a particular form of magnetic separation. An alternating magnetic field induces electrical eddy currents on a metal particle. This results in a magnetic field whose direction is opposite to the primary magnetic field. The exchange interactions between the magnetic fields result in a repulsive force on the metallic particle; the net effect is a forward thrust as well as a torque. This force and hence the efficiency of separation is a function of the magnetic flux, or indirectly of the electrical conductivity and density and the size and shape of the metallic particles.

Air separation/zigzag windsifter: Air-based sorting technique, which separates the light materials from the heavier. The most prominent application is in shredder plants producing the shredder light fraction, or in fridge recycling, removing among others the polyurethane (PUR) foam from the shredded scrap.

Screening: Separation of the scrap into different particle size classes is performed to improve the efficiency of the subsequent sorting processes and/or to apply different processing routes for different size fractions (based on material breakage and hence distribution over various size fractions).

Fluidized bed separation: A fluidized bed of dry sand is used to separate materials based on density. This technology is in principle a dry sink-float separation, which is still hampered by several difficulties (tubular or hollow particles filling up with sand and tend to sink; formation of unsteady current due to the use of high velocity air, etc.). The fluidized bed could also be heated for simultaneous de-coating and combustion of organic material.

Image processing (including colour sorting): Colour sorting technologies, which sense the colour of each particle and use computer control to mechanically divert particles of identical colour out of the product stream (red copper, yellow brass, etc.). A complicating issue is that shredding results in mixtures of particles that show a distribution in composition, size, shape, texture, types of inserts, coatings, etc. The variance of these properties complicates identification that is solely based on this principle.

X-ray sorting: Dual energy X-ray transmission imaging (well known for luggage safety inspections at airports) identifies particles based on the average atomic number, particle shape, internal structure (e.g. characteristic variations of thickness) and presence of characteristic insert material. It is rather sensitive to particle thickness and surface contaminations.

LIBS (laser induced breakdown spectroscopy) sorting: A series of focused ablation laser pulses are delivered to the same spot on each particle. A pulse of an ablation laser vaporizes only the first nanometres of the surface, i.e. the first pulses are necessary to clean the surface of oxide layers (different composition than the mother metal), the last pulse vaporizes a tiny amount of metal generating a highly luminescent plasma plume. The light from the plasma is collected and analysed to quantitatively determine the chemical composition. This determines to which bin the particle is directed (e.g. by air pulse).

Iron ore processors may also employ magnetic separation for beneficiation of classifier output streams. Wet high-intensity magnetic separators (WHIMS) may be used to extract high-grade fine particles from gangue, due to the greater attraction of the former to the applied magnetic field.

In addition to beneficiating the intermediate middlings streams from the classifier, WHIMS may be used as scavenger units for classifier overflow. This enables particles of sufficient grade to be recovered that would otherwise be sacrificed to tails.

Testwork has been performed on iron ore samples from various locations to validate the use of magnetic separation following classification (Horn and Wellsted, 2011). A key example was material sourced from the Orissa state in northeastern India, with a summary of results shown in Table 10.2. The allmineral allflux and gaustec units were used to provided classification and magnetic separation, respectively.

The starting grade of the sample was a low 42% Fe. It also contained significant ultrafines with 58% passing 20m. This is reflected in the low yield of allflux coarse concentrate; however, a notable 16% (abs) increase in iron grade was eventually achieved. The gaustec results for the middlings and overflow streams demonstrate the ability to recover additional high-grade material. With the three concentrate streams combined, an impressive yield of almost 64% was achieved with minimal decline in iron grade.

The automatic separation system, developed by Magnetic Separation System of Nashville, Tennessee, uses X-ray, IR, and visible spectra sensors for separating the post-consumer recyclate bottles or flakes into individual plastics and into different color groups. X-ray sensors, used for separating PVC, are very accurate and can operate at as high as 99% or better efficiency. IR and visible sensors are used to separate the colored bottles into individual polymers and color groups.

The separation system (Figure 4) essentially consists of a metering inclined conveyer, air knife, special disk screen, singulating infeed conveyor, and sensor module. A motor control system provides operator interface screens which control the sorting functions, including the number of bottles sorted into each fraction, ejection timing, and sort positions. Individual systems currently in use in Germany, Switzerland, and the United States are described in a paper by Kenny and Vaughan.16 The systems are customized, based on the composition of the post-consumer recyclate and the end application of the separated streams. Some systems use X-ray and IR sensors in two locations to achieve better separation. In addition to sorting equipment, some systems also use equipment for breaking the bales and splitting the bottles into more than one stream for smooth operation. Grinders are used when the bottles have to be ground into flakes for further processing. Whereas PVC separation is accomplished at 99%. HDPE and PET separation is between 80 and 90%, depending on the level of contamination.

Automated separation provides two advantages: improved quality and lower labor cost for sorting. The automatic separation system at Eaglebrook Plastics uses the Magnetic Separation System (MSS), which detects and separates the bottles into different categories based on the type of the resin and color, and eliminates impurities such as broken pieces of plastics, rocks, aluminum cans, and other contaminants.17 Metering the feed is critical to obtain maximum throughput at Eaglebrook. This is accomplished by a special debaling device and an incline metering system. Factors contributing to proper operation include clear height, width, spacing, belt speed, and incline angle. Proper presentation of the bottle to the sensor is critical. The bottles are split into four streams and two to three bottles are presented to the sensor per second, one at a time.

The primary identification sensor uses a multibeam, near-IR array to identify the bottles into three classes: Class 1, PVC, PET; Class 2, natural HDPE, PP; Class 3, mixed color HDPE and opaque containers. This sensor is also capable of separating colored PET from clear PET and PP from milk jug HDPE. The X-ray sensor identifies PVC, and a machine vision sensor system provides up to seven color classifications of the plastic bottles. After identification, the containers are ejected from the conveyors into appropriate collection stations using high-speed pulsed air nozzles. The motor control center (MCC) of the separation system controls motor protection, sequential slant up for the system, fault indication, and operation control. In addiiton, a touch screen input panel allows the operator to select any available sort to be directed to any ejection station. Visible light color sensors have been added which sort pigmented HDPE into different colors. The system also includes a decision cross-checking device between the primary sensor and the color sensor. This compares the decisions of the two sensors by comparing them with a logic file. The latter then provides correct identification in case there are discrepancies between the two decisions. The system has successfully operated for the last three to four years at a capacity of 5000 bottles h1.

The debaling system designed for Eaglebrook requires that the bales be presented to the debaling equipment in the same orientation as the original compression. This design feature requires less horsepower, reduces bottle clusters, and requires minimum energy. The debaling and declumping system incorporates a surge bin and metering conveyor to feed the screening system. The improved capacity and higher separation accuracy, due to increased metering efficiency, reduces bottle clusters and provides a more uniform feeding system. The separation efficiency depends on several factors. Timing and catcher bounceback accounts for 12% accuracy loss; contamination, container distortion, and loose labels contribute to about 34%, and nonsingulation of the bottles 510% of accuracy loss.

Asoma Instrument of Austin, TX, is a leading manufacturer of automated bottle sorting equipment. The company uses an X-ray fluorescence spectrophotometer sensor. The identification is completed in 10ms and the separation takes about 20s per bottle. The sorted PET streams have less than 50ppm PVC. National Recovery Technology of Nashville, TN, uses a proprietary electromagnetic screening process which can handle the bottles either in crushed or whole form and does not require any special positioning or orientation of the bottle to achieve high efficiency. Chamberlain/MCR, Hunt Valley, MD, and Automation Industrial Control of Baltimore, MD, offer a paysort bottle sorting system, which uses a sophisticated video camera and color monitor incorporating a strobe to detect and distinguish colors of post-consumer bottles following a near-IR detection system which also determines the primary resin found in each bottle.

A substantial amount of research is focused on microseparation techniques and on techniques which can reject bottles with trace amounts of harmful contaminant. Near-IR spectrometry is being used to separate bottles for household chemicals and ones with hazardous waste residues.

Sorting of automotive plastics is more difficult than sorting of plastics from packaging recyclates. Whereas only five to six polymers are used for packaging, post-consumer automotive plastics contain large numbers of engineering and commodity plastics, modified in various ways, including alloying and blending, filling, reinforcing, and foaming. Hence, sorting of automotive plastic recyclate poses several challenges. Recently, a systematic study, PRAVDA, was undertaken by a German car manufacturer and the plastic suppliers in Europe to investigate the potential of various analytical techniques in separating post-consumer automotive plastics.18

The techniques examined in this study include near-IR spectroscopy (NIR), middle-IR spectroscopy (MIR), Fourier transform Raman spectroscopy (FTR), pyrolysis mass spectrometry (PY-MS), pyrolysis IR spectroscopy (PYIR), and laser-induced emission spectral analysis (LIESA). X-ray methods were excluded because they have insufficient sensivitity to polymers, other than ones containing chlorine. Since commercial spectrophotometers were not available for most techniques except NIR, either laboratory models (MIR, FTR) or experimental stage instruments (PY-MS, PY-IR, and LIESA) were used in this study. A large number of parts (approximately 7000) were analyzed. The techniques were compared in respect to their success in identification, fault rate, time for identification, degree of penetration, and sensitivity to surface quality. The fault rate is the number of wrong identifications, given as percent. If the sum of the identification and fault rate is less than 100, the difference gives the rate of incomplete correct identification. The biggest stumbling block was the identification of black samples which could not be analyzed by NIR and FTR. MIR is the only technique which not only identified the black samples, but gave the highest identification rate. Some difficulties were experienced, however, in MIR analysis in the case of blends of two similar polymers such as PP/EPDM or nylon 6/nylon 66. The pyrolytic methods showed poorer identification rates and higher fault rates. The LIESA method is very fast and a remote technology, particularly for fast identification of heteroatoms. It is therefore suitable for identifying fillers, minerals, reinforcing fibers, pigments, flame retardants, and stabilizers specific to the individual plastic. The difficulty with MIR is that it is sensitive to surface micro-roughness and, hence, the samples need to be very smooth. Also, paint or surface coats on the part have to be removed for correct identification of the resin used for making the parts. Further, at this stage, no fiber optic or separated probe is available with MIR technology and, hence, the part has to be brought close to the spectrophotometer instead of the probe reaching the part. Another method of measuring efficiency is the level of contamination. Contamination of parts sorted by the MIR method was less than 1%, whereas contamination of parts sorted manually, using a Car Parts Dismantling Manual, is greater than 1015%. When the level of contamination is high, further separation by swim-sink or hydrocyclone techniques are necessary.

The cost of a MIR spectrophotometer is approximately DM 100000. The cost calculated for small dismantlers (dismantling less than 25 cars per day) is approximately DM 0.34 per kg and that for large dismantlers is somewhat less than DM 0.19. Manual sorting, on the other hand, would cost DM0.71 and DM0.23 per kg for small and large dismantlers, respectively. Spectrophotometric identification of plastics in automotive plastics waste therefore makes substantial economic sense.

what is magnetic separation? | magnattack global blog - magnattack global blog

what is magnetic separation? | magnattack global blog - magnattack global blog

In these difficult and uncertain times, food processing is one essential industry that must keep on goingand our support to you will continue. Although site visits may be restricted, our team is always able to assist you over the phone, email, or video conference with any metal contamination concerns or enquiries you may have. Please dont hesitate to contact your account managers directly or reach out to us here.

For our Australian customers, the government has introduced major economic stimulus packages to assist businesses during the COVID-19 crisis. Our technicians are available to discuss the Instant Asset Write-Off Scheme. Please note, all purchases must be delivered by June 30, 2020.

What are magnetic separators? Where are they used? How do they work? Why are they needed? These are questions that are commonly asked by people who are unfamiliar with the process of magnetic separation. So, we're breaking it down.

A magnetic separator is a piece of equipment that magnetically attracts and removes foreign metal pieces from other materials. They are typically installed in a line of flowing materials and can be used in conjunction with metal detectors and x-ray machines for maximum defense against contamination and damage to expensive equipment.

A magnetic separator can vary greatly in size, configuration, and how they operate, depending on the industry and product in which they are intended for. Some types of magnetic separation equipment include grate magnets, pulley magnets, inline magnets, suspension magnets, self-cleaning magnets, liquid line magnets...this list could go on and onand on.

Despite their differences, all types are created with one mission in mind: to extract unwanted metal contaminants. Having said this, there are a vast variety of different ferrous metal types that require extraction - from large tramp iron in mining situations to tiny work hardened SS fragments and metal dust in sensitive food ingredients.

For example, pulley magnets are installed under a conveyor belt and retain the tramp metal contaminants until the belt reaches a point where the metal is no longer retained by the magnetic field, and so it drops off. Suspension or overbelt magnets are installed above product lines and extract the metal pieces from the product on the conveyor below. Grate and other inline magnets have direct contact with the product as it flows past, and retain the metal on the magnets until cleaned by an operator.Some magnets sit stationary and others move continuously. Some magnets require manual cleaning by an operator, others have a self-cleaning operation.

Magnets that are used in the food, beverage, and pharmaceutical industries are typically set apart from the magnets designed for use in other industries mostly due to one factor - there is a much greater focus on hygienic and sanitary construction for magnets in food applications. In recycling or mining, for example, magnets are built to be robust and sturdy for heavy industrial use - it is not a huge concern to these industries if their magnets are not highly sanitary or if they do not adhere to food safety standards for food contact.

Magnets used in food processing should comply with stringent quality standards to ensure they are suitable for use in the industry. These can include HACCP, USDA, or other similar standards or practices set out by governing or advisory food industry organizations.

This is not to say that equipment for the food industry does not need to the sturdy, robust, and abrasion resistant - these features are still extremely important in order to maintain the strength life and effectiveness of the magnet. No application is the same - whilst there is always a focus on quality, food industry applications can differ from one another - for example, a dairy or pharmaceutical plant is more concerned about sanitary construction than a meat rendering plant, and a grain milling plant is more concerned about abrasion resistance than an infant formula plant.

Magnets are installed in various strategic locations throughout a food processing plant -from the moment a product is introduced to the factory, during processing, and throughout the entire process line including packing. Some of these locations include:

Magnattack Global focuses solely on the food, beverage, and pharmaceutical industries. This specialized focus ensures that we are able to provide a current, relevant, and knowledgeable source for the food industry to rely on in regards to metal fragment controls and magnetic separation equipment solutions. *Disclaimer: This information is provided without prejudice and is intended to assist in education regarding developments in magnetic separation technology. Magnattack Global blog posts do not intend to undermine any product, person, manufacturer, or company, but rather intend to provide experienced opinions for assistance to the industry that Magnattack Global associates with. Please refer to Magnattack Global Terms of Use.

In metal detectors equipment magnet is one of them. For this magnet, Metal detectors detect the metal object. The metal detector is the best for hunting metal objects in any places. Magnetic separation is utilized in many industries including food and beverage, pharmaceuticals, recycling, mining etc. Now It is important to all industries.

Thanks for your comment, Jame. There are a number of different metal detector types. Some, as you mention, are best for locating and collecting metal objects in any place such as at the beach or in a field. Other designs are used in the food industry to detect small pieces of metal that are contaminating the food product. Magnetic separators and metal detectors are important metal fragment controls for many industries including food & beverage, pharmaceutical, milling, mining, and recycling. If possible, it is best practice for both types of equipment to be utilised together in order to achieve maximum protection against metal contamination risks. If youre interested, you can learn more about how magnets and metal detectors compliment each other in the food industry by clicking here.

how does a magnetic separator work and what uses can it have? - ima

how does a magnetic separator work and what uses can it have? - ima

A magnetic separator is a device that uses a magnet to remove impurities and other magnetic materials from metal. Magnetic separators can be used before, during and after the production of a material and can be adjusted to attract different types of magnetic materials at different intensity levels.

Although its use is almost always industrial in nature, a magnetic separator is used for a wide variety of applications. Magnetic separators can be ferromagnetic or paramagnetic and can vary in size from a table version to a large, heavy drum used in recycling and other manufacturing applications.

A magnetic separator consists of a powerful magnet that is placed or suspended from a ceiling or device. Materials can be passed over a table top magnetic separator, while suspended magnetic separators often hang over a material to remove its impurities. Magnetic separators can also be cylinders through which objects pass. The material that purifies a magnetic separator can be in the form of parts, a finished product or even a liquid metal. With this, a magnetic separator is characterized by:

They are also found in scientific laboratories that constantly require metallic materials that are free of impurities (often the case of chemistry). In this case, the magnetic separator is usually a cylinder or flask that prevents cross-contamination between two different substances by forcing all or some of the magnetic materials of a substance into a separate container.

Magnetic separators are powerful, portable and can be adjusted to remove various types of magnetic materials from a liquid or solid. They are most effective when used in a liquid, although it is also possible to remove solid impurities. Magnetic separators are very versatile and incredibly simple in design. In fact, a basic magnetic separator can be built at any time, using only a powerful magnet such as neodymium magnets and a clamp to hold the material down.

The main disadvantage of a magnetic separator is that it must be constantly maintained. The magnetic separator should be washed or cleaned to remove accumulated magnetic materials, while oil should be added to moving parts. In the case of an electromagnetic separator, the electromagnets must be able to be switched off at any time in case of emergency.

For industry, the magnetic separator comes in a different range of products such as magnetic drums, which are ideal for the continuous removal of ferrous particle contamination from any bulk material in the dry state, as well as magnetic drums with housings, which provide good separation in applications where there is a high concentration of metal contamination.

In short, the magnetic separator creates a magnetic field of high intensity and very high gradient capable of attracting very weak materials such as iron oxides, weak magnetic powders and a high amount of paramagnetic, so if you are interested in knowing more about it, IMA can advise you on the magnetism solution that best suits your project. If you have questions, you can contact us.

what is permanent magnetic drum separator | how does it work | m&c

what is permanent magnetic drum separator | how does it work | m&c

Table of Contents What is Permanent Magnetic Drum SeparatorHow Permanent Magnetic Drum Separator WorkTypes & Features of Permanent Magnetic Drum Separators1. Downstream Type2. Countercurrent Type3. Semi-Countercurrent Type

The permanent magnetic drum separator is suitable for the separation of fine-grained magnetic minerals in metallurgical mines and concentrators, or for the removal of mixed magnetic minerals in non-magnetic minerals.

The surface magnetic field intensity of the permanent magnetic drum separator is much higher than that of the ordinary permanent magnetic separator, which is easy to operate, manage and maintain. The processing capacity is usually 24T/H-240T/H.

After the pulp flows into the tank through the ore feed tank, under the action of the water spray pipe, the ore particles enter the ore area in a loose state. In the magnetic field, The magnetic ore particles are magnetically aggregated to form magnetic clusters or magnetic chains. The magnetic clusters or magnetic chains are magnetically moved in the slurry to move toward the magnetic poles and are adsorbed on the cylinder, and the non-magnetic minerals such as gangue adsorbed on the cylinder fall off during the overturning, and the magnetic clusters or magnetic chain adsorbed on the cylinder surface is the concentrate.

Under the action of pulp flow in the tank body, non-magnetic ore particles and weak magnetism ore particles flow into the tailing pipe from the tailing hole on the bottom plate. The pulp is fed continuously, and the concentrate and tailings are discharged continuously to form a continuous separation process.

The feeding direction of pulp is the same as that of the drum, the concentrate is discharged on the other side, and the tailings is discharged directly at the bottom, which is generally used for 6-0mm strong magnetic minerals.

Features: The downstream magnetic separator has a bigger processing capacity, which is suitable for the roughing and selection of coarse and strong magnetic materials, and can also work in series. When the amount of ore is large, the magnetic ore is easy to lose, so we should strengthen the operation management and control at a lower pulp level.

The feeding direction of ore slurry is opposite to that of the drum. The concentrate is discharged from the feeding side, and the tailings are discharged from the other side. It is generally used in 0.6-0mm strong magnetic minerals.

Features: The countercurrent magnetic separator is suitable for the coarse and sweep separation of fine and strong magnetic minerals. The recovery is high, but the concentrate grade is low. Because the coarse material is easy to deposit and block the separation space, the countercurrent magnetic separator is not suitable for coarse materials.

The feeding direction of half of the pulp is the same as that of the barrel, and the other half is the opposite. The difference with the downstream type is that the pulp rotates in a circle in the tank.

The slurry is washed loose by water to prevent inclusion, and the movement direction of pulp is consistent with the magnetic direction, which is conducive to the recovery of 0.5-0mm strong magnetic minerals.

what is magnetic separation? (with pictures)

what is magnetic separation? (with pictures)

Magnetic separation is an industrial process where ferromagnetic contaminants are recovered from materials on the production line. Manufacturers use this to extract useful metal, separate recycling, purify materials, and perform a wide variety of other tasks. Manufacturers of magnetic separation equipment may have a range of products available for sale for different applications, including an assortment of sizes with strong and weak magnetic fields to attract different kinds of magnetic material.

The magnetic separator consists of a large rotating drum that creates a magnetic field. Materials enter the separator and fall out through mesh at the base if they are not magnetic. Sensitive particles respond to the magnetism and cling to the sides of the container. The drums can be used in continuous processing of materials as they move along the assembly line, or in batch jobs, where a single batch is run through all at once.

One common use for magnetic separation is to remove unwanted metal from a shipment of goods. Magnetic separation can help companies keep materials pure, as well as remove things like nails and staples that may have crept into a shipment. The equipment can also purify ores, separate components for recycling, and perform a variety of other tasks where metals need to be separated or isolated. Equipment can range in size from a desktop unit for a lab that needs to process small amounts of material to huge drums used in scrap metal recycling centers.

Manufacturers of magnetic separation equipment typically provide specifications for their products for the benefit of prospective customers. Consumers may need equipment that targets a specific range of metals, or could require large size or high speed capacity. It may be possible to rent or lease equipment for some applications, or if a factory wants to try a device before committing to a purchase. Used equipment is also available.

A gentler form of magnetic separation can be used for delicate tasks like removing magnetic materials from cremated remains or finds at an archaeological site. In these situations, a technician carefully moves a magnet over the material to pull out materials like staples and jewelry. At a crematorium, this is necessary before ashes are ground, as metal objects can damage the equipment. For archaeologists, it can provide a mechanism for carefully separating materials at a find and documenting the position and location of various objects as the archaeologist uncovers them on site or in a lab.

Ever since she began contributing to the site several years ago, Mary has embraced the exciting challenge of being a InfoBloom researcher and writer. Mary has a liberal arts degree from Goddard College and spends her free time reading, cooking, and exploring the great outdoors.

Ever since she began contributing to the site several years ago, Mary has embraced the exciting challenge of being a InfoBloom researcher and writer. Mary has a liberal arts degree from Goddard College and spends her free time reading, cooking, and exploring the great outdoors.

@allenJo - I do believe they use these systems in water treatment systems. I dont know the mechanisms used but it is used from what Ive heard. Water should give up its magnetic particles quite easily, I would think, since the metals are just floating about like flotsam and jetsam in the ocean.

@Charred - Those are two very good points, and I am sure that they are accounted for. The uses described in the article suggest scenarios where the metals are rather loosely fitting, so I think the cleanup job would be thorough. What I wonder about is if this process can be adapted to water treatment? Since magnetic separation systems can be used to sift through fluids, could they purify water as well? That seems to be an obvious application. Where I live the tap water has a lot of metals and so we generally dont drink it. I already have three metal fillings; I dont need more metal in my body.

What I wonder about is if this process can be adapted to water treatment? Since magnetic separation systems can be used to sift through fluids, could they purify water as well? That seems to be an obvious application. Where I live the tap water has a lot of metals and so we generally dont drink it. I already have three metal fillings; I dont need more metal in my body.

What I wonder about is if this process can be adapted to water treatment? Since magnetic separation systems can be used to sift through fluids, could they purify water as well? That seems to be an obvious application. Where I live the tap water has a lot of metals and so we generally dont drink it. I already have three metal fillings; I dont need more metal in my body.

That seems to be an obvious application. Where I live the tap water has a lot of metals and so we generally dont drink it. I already have three metal fillings; I dont need more metal in my body.

I see two things here that are necessary for magnetic separation to work well. First, the metals must be easily dislodged from whatever material or goop they happen to be sitting in. Otherwise, theyll just remain stuck, and the separation will be less than effective in pulling out all the metals. Second, the magnetic drum separator itself must be sufficiently strong. I think thats obvious, and the second point is related to the first. If the separating device is not strong it wont dislodge the metals; but there may be situations where the device is strong, but the metals are just stuck and wont budge.

Second, the magnetic drum separator itself must be sufficiently strong. I think thats obvious, and the second point is related to the first. If the separating device is not strong it wont dislodge the metals; but there may be situations where the device is strong, but the metals are just stuck and wont budge.

Second, the magnetic drum separator itself must be sufficiently strong. I think thats obvious, and the second point is related to the first. If the separating device is not strong it wont dislodge the metals; but there may be situations where the device is strong, but the metals are just stuck and wont budge.

magnetic separation technology for a recycling industry

magnetic separation technology for a recycling industry

Magnetic Separation is the process, in which the magnetically caused material is detached easily by using a magnetic force. From last many years, magnetic separators are used for various separation process in recycling industry like Glass recycling, Scrap material, Pet flakes, Plastic recycling, Rubber recycling, Municipal solid waste (MSW), e-waste recycling etc.

Magnetic Separator is the most trusted machine used to recover metal from the waste materials. It is known for the easy separation process to detach fine particles which have poor magnetic properties. Magnetic separator provides the excellent separating effect, as it uses dynamic magnetic system design. Recycling industries are using magnetic separator because of its various advantages like large handling capacity, low maintenance rate, simple structure and adjustable magnetic field intensity.

Eddy Current Separator is the most trusted separator, used to segregate valuable non-ferrous metals like aluminium, brass, copper, lead etc. It has an advantage of high frequency and high separation capability. Eddy Current Separator is robustly constructed with anti-vibration pads and its powerful quality of magnets provides the best and smooth separation for the recycling industry.

It has a capacity from 2MT/hr to 15MT/hr. Eddy Current provides its best separation service in various fields of recycling industry like plastic, rubber, glass, municipal solid waste, e-waste, pet etc. And the industries can take a huge advantage of using eddy current separator for their current application.

Overband Magnetic Separator is known for providing the excellent service of separating tramp iron from the material that is being processed on the conveyor belt or a vibratory feeder. Overband magnetic separator is used to protect machines like crushers, shredders by removing ferrous particles and it easily removes the heavy dust particles. It is used in many industries like food, sponge iron, charcoal, glass etc.

Specially designed Magnetic Head Pulley to detach tramp metals like steel, bucket teeth, bore crowns, bar scrap, chains, and tools. Recycling industries are using Magnetic Head Pulleys to segregate steel, municipal waste and many other ferrous contaminations like cans, nuts, nails etc.

From last many decades, Manufacturing industries are playing a most crucial role in our global economy. They are trying to develop high capacity and high-frequency pumps for the recycling industry, because theyre facing an issue of sorting recyclable material by removing various tramp metals like steel, bucket teeth, bore crowns etc.

Machines are not able to provide the best separation solution in the various field of recycling industry like plastic, rubber, glass, municipal solid waste, e-waste, pet etc. After facing these all issues regularly they are looking for high capacity which is having high-intensity magnets to remove impurities easily.

Jaykrishna magnetic Pvt. Ltd. understands all problems that the industries are facing now!!! We design a machine which is of high capacity that easily recovers metal from the waste materials. Our machines are evolved by using the latest technology that can be easily operated and to provide best separation results in various fields of the recycling industry.

We are famous for manufacturing and supplying magnetic separators which is of high capacity that easily provides the perfect separation solution. Jaykrishna Magnetic Pvt. Ltd. has 38+ years of experience in developing machines which are highly efficient and easy to handle.

Our magnetic separators are designed by the team of experts who have a great knowledge of designing and developing various types of magnetic separators and vibratory equipment. Our experts take care of clients need, before supplying any machine to them.

Our machines are installed in various fields of recycling industry like plastic, rubber, glass, municipal solid waste, e-waste, pet etc. We also design different types of magnetic separators like Eddy current separators, Overband Magnetic Separator and Magnetic Head Pulley as per the clients requirement to deliver them a best product.

If you are facing a problem of extracting tramp metals steel, bucket teeth, bore crowns etc. then feel free to contact us. Our team will get back to you with the best and effective solution that solves your problem.

Jaykrishna Magnetics Pvt. Ltd. is the leading manufacturer and exporter of Magnetic and Vibratory Equipments in India. We are established since 1978. The unique and premium structural design imparts quality and elegance to our products. Our focus is on continuously improving our process, service and products to exceed the benchmarks set by our competitors and offer better products to you.

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