Changes in E Waste Management Highlighted at IERC 2018

Future of Electronics Recycling Discussed at 17th International Electronics Recycling Congress

IERC 2018 closed on Friday 19th January 2018 with a stark warning that changes are needed in the global management of E-waste.  Attending the congress were 480 international experts from 42 countries.

WEEE E WasteBunting Magnetics Europe’s Managing Director, Simon Ayling, was at the congress for the first time.

“All the leading companies and organisations involved in E-waste were present at the congress,” said Simon.  “There was a very honest and open assessment of the present state of the industry, with a focus on what needs to change.”

Many visitors to the Bunting Magnetics stand had issues with separating Stainless Steel.

“Stainless steel is clearly a major issue when processing WEEE.  Up until now, it has been difficult to effectively [physically and economically] extract the stainless steel.  This then causes problems with shredder wear and the contamination of the end product.  With the HISC and SSSC, we have Magnetic Separation solutions for both small and large sized Stainless Steel.”

At IERC 2018, there was a focus on change.  As developing countries introduce tighter restrictions on the shipment of waste in general [EPPM – China raises drawbridge on incoming overseas plastic waste], a more holistic approach is needed.

New technology, like the Bunting Stainless Steel Magnetic Separator, and increased automation were identified as being vital to improve WEEE recycling rates.

Bunting Master Magnets at RWM17

The amount of E-waste is ever-increasing and the shrinking product size is making recycling increasingly difficult.  Rising collection costs and falling value of the end recycled product may lead to more localised e-recycling.  There also needs to be a clear political strategy with a standardisation of regulations.

WEEE E Waste“It was clear that the industry faces a challenging future,” observed Simon.  “Being able to successfully recycle WEEE can be prohibitively expensive and is further complicated with local and global environmental regulations.  Companies involved in processing E-waste are having to continually modify their businesses to survive in an ever-changing industry.  Hopefully, our Magnetic Separation technology will help.”

For further information on Metal Separation including Stainless Steel Recovery and Removal, or to assess the right Magnetic Separator or Metal Detector for a specific application, please contact us on:

Phone: +44 (0) 1442 875081
Email: sales@buntingeurope.com
Via the website

Metal Separation at IERC 2018

Bunting Exhibiting at 17th International Electronics Recycling Congress (17-19 January 2018)

IERC, the first major recycling event of 2018, is being held in Salzburg, Austria between the 17th and 19th of January.  For the first time, Bunting Magnetics will have a stand at the event.

During the 3 day congress, experts from around the world will discuss the latest issues facing the recycling world such as the Chinese ban on plastic waste imports and the continued drive towards electric vehicles.

Bunting Master Magnets at RWM17

Technology is always high on the agenda as new innovations make it possible to recover and separate an increasing number of valuable metals whilst reducing the amount of unusable waste.

Bunting has developed a wide range of Magnetic Separator technology.  Following the acquisition of Master Magnets in January 2017, Bunting is able to provide solutions to separate any metals.

Stainless Steel Separation

Stainless Steel becomes very weakly magnetic when bent or cut (as when passed through a shredder).  Bunting developed two new Magnetic Separators, the High Intensity Separation Conveyor (HISC), and the Stainless Steel Separation Conveyor (SSSC).  Both systems have ultra high magnetic fields that enable the attraction and deflection of Stainless Steel, enabling separation.  Production sized equipment was recently on display the RWM 17 exhibition in the UK.

Non-Ferrous Metal Separation

The Eddy Current Separator remains a vital part of any recycling process, separating and recovering non-ferrous metals.  Master Magnets have a number of Eddy Current Separator configurations enabling the separation of large and very small non-ferrous metals.  In 2017, Master Magnets manufactured and shipped a record number of Eddy Current Separators.  This is as a direct result of companies seeing their equipment’s superior separation capabilities.

General Ferrous Metal Separation

Separating metal at stages is the key to enabling the best recovery and purity of metal.  General Magnetic Separators are commonly used earlier in the process to recovery or remove ferrous metals and include:

Bunting Europe’s Managing Director, Simon Ayling, will be at the congress.  If you have a specific application, please see us on our stand.

In the meantime, for further information on Metal Separation or to assess the right Magnetic Separator or Metal Detector for a specific application, please contact us on:

Phone: +44 (0) 1442 875081
Email: sales@buntingeurope.com
Via the website

 

 

Our 2017 Review

A Look Back at Our News & Blogs from 2017

2017 has been another busy and exciting time for Bunting Magnetics Europe with some great news stories.  In this blog we look back at the past 12 months and review the stories that hit our headlines.

January

bunting_master_magnetsWe started the year by announcing that Bunting had acquired leading UK Magnetic Separator and Metal Detection company Master Magnets.  This changed the Magnetic Separator landscape in Europe.

At the same time, the Bunting team was exhibiting at the Arabplast exhibition in Dubai.  The plastics focused event was attended and visited by plastics professionals across the region.  Sales were even made on the stand!

Our 7th of our 8 Magnetic Separator Myths examined the impossibility of achieving 100% metal separation.

To finish off January, we announced record sales in 2016 despite the backdrop of Brexit and political uncertainty.

February

We started the month with our 8th Magnetic Separator myth, asking if it was possible to block a magnetic field.

Bunting also joined the British Plastics Federation, reflecting our longtime involvement in the sector providing metal separation solutions.

Bunting at Exposolidos 2017

Our exhibition focus in the month was Exposolidos in Spain with our local representative SMED Tecnica.

In February, we also asked the question of whether our Environmental future is simple down to design?  This was written in response to the growing awareness of the environmental impact of waste that would gradually intensify through the year.

We finished off the month with the launch of the Teardrop Tube Magnet, ideal for use in fine powders where bridging might be an issue.

March

The strength of a Magnetic Separator is often expressed in ‘gauss’.  However, the vast majority of people are unable to measure gauss and so we showed a simple practical way to check the magnetic power using a simple spring balance.

Our 9th Magnetic Separator myth highlighted the dangers of strong Magnets and our 10th myth looked at ways to easily and safely clean captured metal off  Magnetic Separators.

We also investigated a US FDA report stating the ‘Ingesting Metal Fragments Can Cause Injury‘.

In March, we exhibited at the Southern Manufacturing and Electronics show in Farnborough UK.

April

Metal is commonly found in spices and we examined a typical plant and identified the best locations for Magnetic Separators and Metal Detectors.

We also reported that we sold a record number of Plate Magnets in 2016 for export to Indonesia and 28 In-Line Magnets to a German baby food producer.

New Bunting Sales EmployeesWith the continued growth of the business, we were thrilled to announce the appointment of two new sales engineers, Tom Higginbottom and Gordon Kerr.

In April, UK supermarket Morrisons was hit by a metal-in-food scare and we looked at how this could have happened and ways in which such a problem could have been prevented.

May

Our Food Safety theme continued in May when, during a metal separation survey, we found large amounts of metal safely captured when processing rice.  Our Perfect Plant review assessed the best methods and equipment location to ensure that metal is removed from Processed Vegetables.

Exports continued to proved successful with the shipment of a HFS Drawer Magnet to a Plastics recycling company in France.

Our technical review in May reviewed the effect of high temperatures on Rare Earth Magnetic Separators.

June

There was a political flavour to news in June after the UK’s general election and we investigated what the leading parties were promising with regards to the environment.  At the same time, Bunting and Master Magnets were jointly exhibiting at Waste 17, a major UK recycling show in Manchester.

The week after, Bunting supported local representative BMS France at the FIP Solution Plastique exhibition in Lyon, France.

To mark the UK’s Food Safety Week, we reviewed recent cases of ‘metal’-in-food’ and the potential implications for the manufacturer, sales outlet, and customer.

July

Denis_Elkins_Bunting_Magnetics_Europe-2176In July, we were thrilled to announce the successful transition to ISO9001 2015 Quality and the ISO14001 2015 Environmental Standards.

In the media there was increasing attention on the issue of plastic waste in the environment and we commented on the necessity of a global strategy for Plastic Waste.

August

The environmental theme continued in August asking if the UK could realistically increase their metal packaging recycling rate by 10% by 2020.

September

As a prelude to RWM17, the UK’s largest waste and recycling show, we looked at 3 UK Waste and Recycling Facts such as asking how much waste do we actually generate?

Bunting Master Magnets at RWM17

After exhibiting at RWM, there were many questions being asked by exhibitors and visitors about the future of the event despite the importance of recycling and the global waste problem.

October

Bunting Magnetics Europe at Interplas 2017

The UK’s leading plastics show, Interplas, is held every 3 years and, as in previous years, it was very well supported by both exhibitors and visitors.  The environmental issues associated with plastic waste was gathering momentum.

Removing metal from fine powders can be extremely difficult and we produced a technical report looking at the best techniques and ideal equipment.

Tom Higginbottom attended the successful Bulk Solids & Powders show SyMas in Poland with the local Bunting representative TEKPRO.

November

The Manufacturing and Engineering industries have been concerned about the lack of young engineers and hopefully initiatives such as Tomorrow’s Engineers Week will help address this issue.

We were also excited to report two consecutive record sales months in September and October.  2017 was proving to be as successful as 2016.

Our latest Perfect Plant review focused on the brewing of beer and ensuring that all metal is removed to protect delicate processing equipment and the taste of the beer.

December

Pantomine BlogThe BBC TV series Blue Planet had highlighted the global problem of plastic waste in our oceans.  However, as the pressure increased on the plastics sector, we asked whether Plastic was the Pantomime Villain of the recycling world?

We hope you have enjoyed reading our news and blogs in 2017.  If there are any topics that you would like reviewed, then please get in touch and send an email to Paul our press officer (press@buntingeurope.com).

For further information on Magnetic Separators or Metal Detectors please contact the Bunting team on:

Getting Metal Out of Beer

Ideal Locations for Magnetic Separators and Metal Detectors in a Brewery

Thankfully, it is very unlikely that you will ever find a piece of metal in your glass of beer.  However, when tramp metal in the form of screws and nails is accidentally introduced during the brewing process, it damages processing equipment and can even affect the taste of the beer.  In this article we look at the best methods of ensuring that the brewing process is unaffected by tramp metal.

Bunting_Magnetics_Europe_Brewery_Plant

As with any food process, there are many locations where metal can be inadvertently introduced.  With raw materials being collected from the fields and then transported to the brewery in large trucks, contamination by metal and other materials is unavoidable.

Here we look at a typical brewery and identify where Magnetic Separators and Metal Detectors could be located to remove any metal contamination.

Location 1 – Malt In-feed Line

When the malt is delivered by truck or rail, it is commonly pneumatically transported into storage silos.  A Pneumatic In-Line Magnet and/or Metal Detector would ensure that any tramp metal in the raw material feed is removed prior to storage.

Bunting Magnetics In Line Magnet-2

A Pneumatic In-Line Magnet is designed to easily fit into a pipeline without causing any obstruction.  It has a magnetically strong Plate Magnet mounted on one side which attracts and holds any ferrous metal.  This is then manually removed on a regular frequency.

The Metal Detector identifies and then ejects any remaining metal contamination, both ferrous and non-ferrous.  As most metal contamination at this stage is ferrous, installing the Metal Detector after the In-Line Magnet reduces the amount of metal detection rejects and thus reduces the loss of product.

Location 2 – Prior to Milling

cartridge_magnetsGrate Magnets are commonly positioned in or above the in-feed hopper to the mill, especially if there has been no previous metal separation or detection.  A Grate Magnet is a series of Tube Magnets designed in a grid to fit inside a hopper.  For maximum protection of the mill, the Grate Magnet uses a set of high magnetic strength Rare Earth Neodymium Tube Magnets.  Such protection ensures that no tramp metal enters the mill where it can cause serious and expensive damage.

Location 3 – Hot Water Feed to Mash Tun

Bunting Magnetic Liquid TrapWater is a common source of metal contamination in food processing plants and is also the one in-feed material that is often overlooked.  The nature of water means that rust is common and a simple Magnetic Liquid Trap is used to attract and capture any rogue ferrous metal, even in a very fine form.  A Magnetic Liquid Trap is designed to be easily introduced into a pipeline, with flanges or any other connector.  Inside the body, high strength Rare Earth Neodymium Tube Magnets project down into the material flow, attracting and capturing any ferrous or weakly magnetic materials.  The Tube Magnets are removed from the process and manually cleaned.

Location 4 – Between Mash Tun, Lauter Tun and Brew Kettle

Magnetic Liquid Traps could also be located between the Mash Tun, Lauter Tun and Brew Kettle, especially is there has been limited protection earlier in the process.

Location 5 – Hops In-feed Line

Protection is important whenever raw materials are introduced into the process and Grate Magnets and a Quicktron Metal Detector will ensure that hops entering the brew kettle are metal-free.  This design of Metal Detector is for free-fall material.  As the material enters the metal detector, any metal is detected and then automatically rejected.  The Grate Magnet reduces the amount of material lost during the rejection process by removing any ferrous metal.

Location 6 – Between Brew Kettle and Whirlpool/Settling Tank

After the brew kettle , a Magnetic Liquid Trap, with special Neodymium magnets designed to withstand high temperatures, will provide final protection prior to settling.

Location 7 – Yeast In-feed Line

As on the hops in-feed line, a combination of a Grate Magnet and Quicktron Metal Detector will ensure that any metal does not enter the process.

Location 8 – Between Conditioning Tank and Filter

To protect the filter, a Magnetic Liquid Trap is often installed after the conditioning tank.

Location 9 – Prior to Bottling

p-TRON-GM-V2As in many food processing plants, it is good practice to install a Metal Detector (in this case a P-Tron) at the final stage of the process.  This provides a final stage of protection to ensure that any metal introduced into the process from damaged processing equipment such as the filter or in the pipes is detected and removed.

This is a typical example of a Brewing Operation.  However, each plant is unique and often a site visit is required to assess and recommend the best ways to ensure a metal-free end product.

For further information on removing Metal during the brewing process using Magnetic Separators and Metal Detectors, please contact the Bunting technical sales team on:

Other Food Plant Reviews include:

Bunting_Magnetics_Europe_Brewery_Plant

 

 

 

Review of the Bulk Solids and Powders Industry in Poland

Tom Higginbottom Reports Following Attending the SyMas Exhibition

Last week, our Sales Engineer Tom Higginbottom spent 2-days at the SyMas Bulk Solids and Powders exhibition in Krakow, Poland with Bunting’s local representative, TEKPRO.  Whilst at the show, he gained an insight into the present state of the market and potential opportunities for UK exporters.Bunting_at_SyMas17-17

Tom gives us his insight in the show, local feelings about BREXIT, and the market in general

“SyMas was a really good show with a busy footfall.  There was a lot of equipment on show, from manufacturers based all over the world.

From the type of enquiries and from talking to clients and our distributor, it is clear that the bulk solids and powders sector is growing.  Despite being a member of the EU, Poland remains an emerging nation and wages are still lower than in more developed European countries like the UK, Germany and France, but that gap is closing.  Their skill base is very high and consistently improving.

There is a lot of Western European investment and many of the manufacturing facilities are state-of-the-art.  This matched with the lower wage cost and workforce skills make the Poles very competitive in both European and global markets.

It was interesting speaking with the Poles about the UK leaving the European Union.  Generally, people thought that being a part of the EU makes it possible to compete with larger economies such as China and the USA.  Brexit has introduced an unknown factor and there was a feeling that, without the UK, the EU would have less negotiating power on the world stage.SyMas Tube Magnets 2

I think that the growth of our local representative TEKPRO highlights the expanding market and potential opportunities in Poland.  Since they were founded 10 years ago, they have expanded their workforce from 4 to 84 people.  It is an exciting time and we are working closely with them to maximise our sales potential in Poland.

At the show we received enquiries for both Magnetic Separator and Metal Detectors, including 3 specific projects where clients require Pneumatic Self Clean Drawer Filter Magnets and Drum Magnets.

Attending the SyMas show was really worthwhile and allowed me to gain an insight into the market which simply is not possible without being at the exhibition.

krakow

And Krakow was a beautiful city.  I have never been before and found the people wonderfully friendly and the historical buildings beautiful.”

For further information on removing metal contamination from bulk goods, powders and granules with Magnetic Separators and Metal Detectors please contact us on:

Other relevant Bulk Goods, Powders and Granules Articles

 

Developing Business in Poland at SyMas 2017

Bunting Support TEKPRO at International Trade Fair for Powder & Bulk Solids Technologies in Krakow, Poland

As part of their export business development strategy, Tom Higginbottom from Bunting will be supporting their Polish distributor TEKPRO at SyMas, the powder and bulk solids trade fair in Krakow, Poland (18-19 October 2017).

SyMas is an international exhibition focused on the processing, transport and storage of bulk goods, powders and granules.  TEKPRO are on stand A68.Bunting_at_SyMas17-2

Company TEKPRO Sp. z.o.o. was founded in March 2007 by Danish company TEKEMAS A/S  and the Swiss Dietrich Engineering Consultants sa .  They specialise in providing individual equipment and complete plants to handle and process bulk materials to the Polish market.

“Attending the exhibition and supporting the TEKPRO team is very important,” explained Bunting’s Sales Engineer Tom Higginbottom.  “Being at SyMas allows us to gain an understanding of the market, meeting existing and potential customers, and discussing the industry in general.”

Bunting_at_SyMas17-1TEKPRO will be displaying Bunting FF Drawer Filters and Grate Magnets on the stand.  Tom and the TEKPRO sales team will be giving advice to visitors about eradicating the problem of metal contamination using both Magnetic Separators and Metal Detectors.

“Over the next 2-days it will be great to have an opportunity to get to know the TEKPRO team.  We will also take the opportunity to provide some additional training.  We are really looking forward to the show, and spending time in a very beautiful city,” said Tom.

For further information on removing metal contamination from bulk goods, powders and granules with Magnetic Separators and Metal Detectors please visit the TEKPRO stand at SyMas or contact us on:

Other relevant Bulk Goods, Powders and Granules Articles

The Challenges of Removing Fine Iron from Powders

Magnetic Separators Designed for Processing Powders

Removing metal contamination when the tramp metal and material is granular is far more straightforward than when in a powder form.  To determine the best solution to remove fine iron contamination from powders, it is necessary to have a good understanding of the way the fine materials behave.

Powders are produced and used in a wide variety of industries including food, pharmaceuticals, refractories, and chemicals.  It is estimated that 80% of materials used in industry are in a powdered form.

flour-791840_960_720A ‘powder’ is defined as fine dry particles produced by the grinding, crushing, or disintegration of a solid substance.  The nature of a powder means that the handling and processing tends to be problematic as powders exhibit similar properties to both solids and liquids.

Metal contamination, commonly in an iron form, can be introduced into a material at any stage within a process.  Tramp metal that is undetected and remains in the product before the powder production stage, becomes significantly reduced in size and, subsequently, increasingly difficult to extract.

Magnetically susceptible metal contamination (i.e. iron) is commonly removed using Magnetic Separation Equipment, which traps metal using Ceramic Ferrite or Rare Earth Neodymium Iron Boron (Neodymium) Magnets.  Although there are Magnetic Separators where the magnetic field is produced via an electrical current, the vast majority utilize permanent magnets such as Ceramic Ferrite and Rare Earth Neodymium Iron Boron (Neodymium).  Ceramic Ferrite Magnets produce low strength but deep magnetic fields, while Neodymium Magnets create the strongest permanent magnetic presently commercially available.

Where Does The Metal Originate?

Metal contamination commonly originates in a powder from two sources:

  1. Primary large tramp metal, such as a nail, screw or bolt;Tube Cartridge Magnets Bunting Magnetics-5
  2. Primary or Secondary fine tramp iron. Primary fine iron or magnetic particles are often present in the raw material.  This originates from primary processing, transportation, or even naturally occurs in the original material.  Secondary fine iron originates from a larger tramp metal source that has been reduced in size during the process.  Typically, this could be from a nail, screw or bolt that has been through a size reduction process, or from damaged or worn processing equipment.  Another common source of secondary fine iron contamination is rust, falling into the process from weathered and worn processing equipment such as chains, hoists, and building cladding.

The separation and detection of tramp metal is easier when the metal contamination is in a larger form and can be successfully removed using a wide range of suitable Magnetic Separators and Metal Detectors.  Magnetic Separators using standard strength Ceramic magnets, with deep magnetic fields, are ideal.  A good example is the Plate Magnet, often installed in a chute, in a housing, or as part of an In-Line Magnetic Separator.

Quicktron05A_Sodium Bicarbonate 2

Larger metal contamination is also easier to detect on a Metal Detector.  Metal is detected as it passes through the coil of the Metal Detector and an automatic reject system removes it from the flow.  For detection, the magnetic field generated by the Metal Detector has to see a state change.  Finer sized metal produces a lesser state change and thus increases the difficulty in detection.

In a project in Pakistan, a processor of fine Sodium Bicarbonate is using a Quicktron Metal Detector to remove the larger tramp metal.

Removing larger tramp metal with a Magnetic Separator and Metal Detector prior to the processing stage not only prevents the metal from being reduced in size (e.g. converted into a secondary source of fine iron contamination), but also protects delicate processing equipment such as granulators, shredders, and mills from being damaged by the metal.

Once in a powder form, there are processing parameters to consider when assessing the optimum method to remove fine iron contamination.

How Does a Powder Flow?

When a powder is sprinkled, it remains light and free.  However, when the same powder is vibrated or compressed, it may become very dense and even lose the ability to flow.

Individual grains in a powder cling to each other in clumps, in accordance with the Van der Waals force.  This coagulation often results in the fine iron being trapped in among clean product.  The ability of any Magnetic Separator to attract, hold and separate the fine iron is dependent on the iron being as close to the magnetic field as is physically possible.  If the fine iron contacts the surface of a Magnetic Separator with a high strength magnetic field, it will be held.  However, when the fine iron is held inside a coagulation of powder, then it could be held out of the reach of the maximum magnetic force.  Thus, it will not be separated.

The way a powder flows impacts on the design of the Magnetic Separator.  Powders flowing in a hopper may experience classic flow problems such as ratholing, bridging or flooding, all of which could be exacerbated by the design of Magnetic Separator.

Different Designs of Magnetic Separator

Plate Magnets Bunting Magnetics-9797High strength magnetic fields, as produced by Neodymium, are needed to capture fine iron metal contamination.  There are four main magnet configurations suitable for handling powders.

  1. Tube Magnets (also known as Rod Magnets and Cartridge Magnets), often in a multi-rod Grate configuration;
  2. Flat-faced Magnetic Plates;
  3. Cone-shaped Magnets;
  4. Magnetic Drums with a curved magnetic arc;

Although occasionally a Tube Magnet may be used on its own, it is more commonly part of a larger multi-cartridge Grate system.  The Magnetic Grate is designed to fit inside a hopper, or can be supplied complete with a housing (i.e. as a Drawer Filter Magnet).ff-neo-4

In operation, powder falls freely onto the surface of the Tube Magnet where fine iron strikes the surface and is held by the strong magnetic field.  To ensure that the powder makes contact with the Cartridge surface, deflectors are often deployed above the gaps between the Cartridges.

Powder build-up on the surface of a Magnetic Cartridge will reduce the separation efficiency.  Also, in severe cases, a slight build up on the surface of the Cartridge may quickly cause a blockage of the whole housing.

Such blockages can be prevented by ensuring that there is optimum space between the Magnetic Cartridges.  Also, in some cases, the mounting of an external vibrating motor on the side of the hopper or housing will provide enough disturbance to prevent any material coagulation.  The frequency of the vibration needs careful consideration as it could affect the flow ability of the powder.  Additionally, when vibrators are used, the Magnetic Cartridges need to be manufactured to withstand prolonged periods of vibration.

Bunting Teardrop Tube Magnet

‘Teardrop’ shaped Tube Magnets are specifically designed to stop the build-up of fine powder on the surface.  The sharp edge of the teardrop faces up into the product flow and allows material to flow around the edge and into the magnetic field.  Magnetic particles are captured and held underneath the Tube Magnet.

Flat-faced Magnetic Plates are ideal when it is possible for the material to flow over the surface.  For fine iron removal, the Magnetic Plates would use high strength Neodymium Magnets.  This magnetic field is further enhanced when a Tapered Step is added to the face of the magnet.  Captured iron migrates behind the step and away from the material flow, reducing the risk of re-entering the cleansed product.

As well as being fitted into chutes, Magnetic Plates are incorporated into housings.  The Plate Housing Magnets resist bridging and choking to remove tramp iron and ferrous fines from flow-resistant bulk materials.  The stainless steel housings mount easily to enclosed spouting or directly on processing equipment.

There are optional square, rectangular, and round adapters for easy connection to existing chute work.  A baffle at the top of the housing helps break up clumps and directs product flow over the unit’s two powerful Plate Magnets.

Bunting Magnetics In Line Magnet

Plate Magnets are also used in In-Line Magnets and there are two designs:

  1. Gravity In-Line Magnets (GIM) – The Plate Magnets are positioned in round, sloping spouting where material is under gravity flow.  For effective tramp metal capture, the spouting should be angled no more than 60° from horizontal;
  2. Pneumatic In-Line Magnets (PIM) – These designs are for use in dilute phase pneumatic conveying systems (up to 15psi). They can be installed easily with optional factory-supplied compression couplings and work best in horizontal runs with the plate magnet down to take advantage of material stratification;

Another design of In-Line Magnet is the Center-Flow, although the magnetic field is generated in a Cone configuration instead of a Plate.  The Magnetic Cone is positioned in the center of the housing, allowing the powder to flow in the space left between the housing.  Center-Flow In-Line Magnetic Separators are commonly used in dilute-phase pneumatic conveying lines up to 15psi.

To achieve optimum contact with the product flow, a conical magnet is suspended in the center-line of the housing.  This tapered, exposed-pole cartridge has a stainless steel “nose cone” to direct the flow of materials around the magnet.  The tapered poles of the cone magnet allow ferrous fines to collect out of the direct air stream.  Additionally, the trailing end of the magnet is an active magnetic pole and holds any tramp metal that is swept down the cone.

Both types of In-Line Magnet are designed with clamps and doors to enable easy access for cleaning.

drumIn specific applications, a high strength Neodymium Drum Magnet will enable the best level of separation.  The Drum Magnet is gravity-fed, usually via a Vibratory Feeder.  The Drum Magnet has a stationary high-strength magnetic arc positioned inside a rotating outer shell.  When material flows onto the drum magnet, the magnetic field projected by the stationary magnetic assembly inside the shell captures fine iron and holds it securely to the drum’s stainless steel surface.  With contaminants removed, the good product falls freely to a discharge point.  As the drum rotates, the captured fine iron travels along the drum surface and out of the magnetic field, where it is discharged.

There are various magnetic field configurations possible, but the most suitable for removing iron from powder is one that produces a Radial Magnetic Field.  This ensures that once captured, the fine iron does not leave the Drum surface until it moves out of the magnetic field.

Processing powder on a Drum Magnet presents more difficulties that other designs of Magnetic Separators.  Firstly, it is recommended that the Vibratory Feeder has an air bed to produce a consistent feed of powder.  Standard Vibratory Feeders may deliver powder in clumps, significantly affecting the separation performance.

Secondly, the shell of the Drum Magnet should be rotated at high speeds.  This will result in some of the powder pluming, and this can be minimized by keeping the distance between the end of the Vibratory Feeder Tray and the rotating surface of the Drum Magnet to a minimum.

The high rotation speed of the Drum Magnet significantly reduces the amount of product lost to the magnetics.  This is because there is less material on the surface of the Drum at any one time, reducing the chance of entrapment.

The use of Drum Magnets operating at high rotational speeds has been very successful in removing fine iron from abrasives, refractories, and other applications where the material has a high specific gravity.

Ensuring Powder is Metal-Free

As the demand for finer and purer powders increases, so does the need to remove even the finest iron.  Understanding the properties and behavior of the powder is vitally important when considering the optimum method of fine iron separation.  Often the ultimate solution is a series of Magnetic Separators and Metal Detectors located at strategic points within the process.

For further information on removing fine metal contamination from powders with Magnetic Separators and Metal Detectors please contact us on:

RWM17 Exhibition Review

Bunting Magnetics Review the UK’s Leading Waste and Recycling Show

On the 12th to 14th September 2017, the focus for the UK’s recycling and waste industry was the RWM 2017 exhibition (NEC, Birmingham).  Bunting Magnetics, along with their acquired business Master Magnets, were demonstrating metal separation on an Eddy Current Separator (for non-ferrous metals) and Stainless Steel Separator.

Bunting’s Dave Hills (Head of Sales) gave us his thoughts on the show:

“We [Bunting and Master Magnets] have come away from the show with some very high quality leads.  In fact, our sales team will be visiting potential customers this week and we are organising urgent tests at our site in Redditch.

The number of visitors to RWM17 appeared to be down on 2016, with day 1 and 3 particularly poorly attended.  The middle day was really busy and this was when we generated the vast majority of the leads.Bunting Master Magnets at RWM17

As in previous years, we had Magnetic Separation equipment operating on the stand to stimulate interest.  And, as usual, our plan was successful with some of the enquiries being a direct result of visitors seeing a large lump of stainless steel being magnetically attracted and separated.  Our ethos of ‘Seeing Is Believing’ was correct and this has now moved onto the next step with the planning of more extensive tests at our Master Magnets plant.

Bunting Master Magnets at RWM17

It was also great to see our Permanent Overband Magnets being displayed on a Terex Ecotech mobile recycling system in the external exhibition area.

Despite the positives, our major concern going forward is that the number of visitors to RWM continue to fall each year.  As openly discussed with exhibitors and visitors, there is a good argument for the show to be held every two-years instead of annually.  Indeed, many German exhibitions are only held every two or even three years.  There are possibly not enough new developments in the waste and recycling sector to justify visitors attending the show every year.  However, despite those concerns, the organisers simply seem intent on an annual show with the announcement of RWM18.

At this year’s show, many exhibitors openly admitted that they would not be attending RWM in 2018.  This continued contraction of the primary exhibition for recycling and waste in the UK is a real concern.  An honest and open review, with input from visitors and exhibitors, is needed.  RWM should be a showcase for the whole waste and recycling industry, but further contraction may put it at risk of closure.

Only in time will we [Bunting and Master Magnets] be able to measure the return on our investment in RWM17, once we been able to visit and speak with visitors and assess how we can help them solve their metal separation problems..

We wish to thank everyone who took the time to visit our stand at RWM17.  Our team enjoyed the show and we will be in contact with you shortly.”

For further information on Magnetic Separators and Eddy Current Separators, please contact us on:

Other relevant waste and recycling articles:

 

Getting Metal Out of Plastic on the Bunting Stand at Interplas 2017

Bunting Magnetics Magnetic Separators and Metal Detectors at UK Plastics Show

The latest Magnetic Separation and Metal Detection technology will be on display on the Bunting Magnetics Europe stand (Hall 4, Stand H11) at Interplas 2017 (NEC, Birmingham, UK, 26th – 28th September 2017).

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Bunting FF Drawer Grate Magnet

Bunting Magnetics is one of the world’s leading suppliers of Magnetic Separators and Metal Detectors.  The European manufacturing headquarters are based in Berkhamsted in Hertfordshire, UK and they have an extensive overseas network of distributors and marketing agents.  In January 2017, the company acquired Master Magnets, significantly expanding their range of Magnetic Separators and Metal Detectors.

“Interplas is the number one exhibition for the plastics sector in the UK,” said Dave Hills, Bunting’s Head of Sales, “and the show gives us a great opportunity to meet many existing and potentially new customers.”

Bunting Magnetics has a strong global relationship with the plastics sector.  Many of their Magnetic Separators have been designed specifically for use in the manufacture and recycling of plastics and plastic products.

The Magnetic Separators and Metal Detectors on the Bunting stand at Interplas are designed to capture, identify and remove metal contamination.  The presence of rogue metal damages processing equipment and affects the end-product quality and reject rates.

Bunting BPI-6151

The FF Drawer Grate Magnet is specifically designed for removing magnetically-susceptible particles from plastic.  The standard model has 2 banks of Neodymium Rare Earth Tube Magnets mounted inside a sealed housing.  Other variations are available including a low profile design for positioning underneath large hoppers and silos. Magnetic Separators with Neodymium Rare Earth Magnets remove even the smallest magnetically-susceptible particles.  On the stand will be examples of extremely strong Magnetic Grates, Plate Magnets, Tube Magnets, and the industry-standard FF Drawer Grate Magnet.  Visitors will be invited to test the magnetic strength for themselves.

Bunting Magnetics Europe at RWM16“This combination [FF Drawer Grate Magnet and the quickTRON Metal Detector] offers the best method of removing metal from free-falling materials,” explained Dave Hills.  “The Magnetic Separator captures and holds any magnetically attracted metals such as steel screws, bolts, steel slithers from worn equipment, and even work-hardened stainless steel.  This always proves to be the bulk of the metal contamination.For a complete metal separation solution, the FF Drawer Grate Magnet is fitted above a quickTRON Metal Detector.  The Metal Detector then identifies and rejects any non-ferrous metals.

“Any remaining metal will be identified as it passes through the Metal Detector and then ejected.  The cleansed plastic can then proceed safety into the next stage of the process, whether than is to the extruder or granulator.”

A working, production-sized model of the combined FF Drawer Grate Magnet and quickTRON Metal Detector will be on the Bunting stand at Interplas.  Regular demonstrations will enable visitors to witness the capabilities of the complete metal separation system.

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pTRON Metal Detector

A range of pTRON Metal Detectors designed for use in Pneumatic transportation lines will also be on display on the Bunting stand.

With the acquisition of Master Magnets, Bunting also has an extensive range of Magnetic Separators and Eddy Current Separators for the recycling sector.

“The combined experience of Bunting and Master Magnets means that we have a solution for most metal separation problems.  The Master Magnets Eddy Current Separator is an industry standard and is used to remove non-ferrous metals from plastics in recycling operations across the world,” said Dave Hills.

For further information on the Magnetic Separators and Metal Detectors that will be on show at the Interplas 2017 exhibition, please contact us on:

Export Success at FIP Solution Plastique Exhibition

Bunting Magnetics Support BMS France at Plastics Show in France

Dave Hills, Bunting Europe’s Head of Sales, was on the stand of local distributor, BMS France for the duration of the major annual international plastics exhibition, FIP Solution Plastique, held in Lyon, France between 13th and 16th June 2017.  Dave gave us this report:

“Last week [13th to 16th June] it was hot and humid in Lyon.  And it was debatable whether the air conditioning in the exhibition centre was actually working.  However, the turnout for the show was fantastic.

FIP Solution Plastique is the number 1 show for the plastics sector in France.  There was a technically and globally diverse group of exhibitors present, all specialising in working in the plastics industry.

We were present to support our local distributor BMS France.  Being on the stand gave me the opportunity to develop relationships with the BMS team, deliver some product training, and also learn about the plastics market in France.  I also had the opportunity to meet the BMS Spain team, based in Barcelona.

It was also good to meet and talk with other equipment suppliers, many of who had equipment on display at the show.  It was interesting to hear their feedback on present market conditions.  We find exports visits such as this invaluable.

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Along with our Metal Detectors and Magnetic Separators, BMS had a wide range of equipment on the stand.  There were 3 operating Boy Injection Moulding Machines on one stand and a Woojin Injection Moulding Machine on a 2nd stand.

There were also 5 Wanner Granulators, and Pixargus had a live demonstration of their unique surface inspection and dimension measurement system.

The extensive range of products and the interactive nature of the BMS France stand made it one of the busiest at the show.

Bunting_FIP_Solutions_Plastique_17-1985

It was interesting to think that all of the aforementioned equipment relies on the plastic pellets and raw materials being metal-free.  And getting metal out of plastic is our speciality.

BMS France was able to talk to visitors about a complete solution, with demonstrations of the quickTRON 03R Metal Detector and FF Drawer Filter Magnet removing both ferrous and non-ferrous metals.

Being in France also gave me an opportunity to hear people’s thoughts about BREXIT.  Unlike some other European countries that I have visited since the referendum, people in France have a very negative opinion about the UK leaving the EU.  In fact, many people asked whether the decision could be overturned.  This just highlights the importance of a negotiated exit that involves free trade.

However, the atmosphere at the exhibition was very positive.  Indeed, BMS France sold 2 Injection Moulding Machines at the show, which was fantastic.  And both will be protected by Bunting Metal Detectors and Magnetic Separators.

An excellent show and we will be back in 2018.”

For further details on the Bunting range of Magnetic Separators and Metal Detectors used to remove metal from virgin and recycled plastic, please contact our technical sales team on:

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