Follow the latest news from Grinding Solutions and staff on our blog.
Follow the latest news from Grinding Solutions and staff on our blog.
Thursday’s Cornish Mining Sundowner marked the opening of our expanded lab and office facilities which now span 1,000m2. Following our original lab opening 2 years ago at Unit 14, Tresillian Business Park, Truro the new space will accommodate a growing team, currently of 13 people, and an increasing range of services. Having originally specialised in fine grinding we have in recent years been applying our innovative and consultative approach to areas including process mineralogy, flotation and gravity separation. The new facilities will accommodate an all new biohydromet & cyanide leaching lab which are being set up with input from Dr Chris Bryan and Dr Dave Dew from the Environmental and Sustainability Institute, Camborne School of Mines, University of Exeter.
The Sundowner was attended by over 100 people with representatives from across the industry including equipment suppliers such as Metso, partners including Petrolab and other mining companies based in Cornwall. The Camborne School of Mines was also well-represented, with a number of trustees and a strong contingent of students.
Equipment on display included a wide range of mills such as the Metso SMD test mill, a LME4 IsaMill, the Magotteaux Mill, as well as 10mm to 5” hydrocyclones, and Denver, Wemco, Magotteaux and FLSmidth flotation cells.
We have seen exciting levels of growth over the last 18 months working with an international client base and have further plans for expansion in the future.
Finally, congratulations to Paul Burton, Managing Director at Piran Mining Research Ltd for winning the business card draw!
Here are a selection of photographs of the new lab space and the opening. Thank you to Barry Wills for the Sundowner photographs.
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Grinding Solutions held our Technical and Innovation Seminar in Castro Verde, Portugal on Friday 29th September and it was well attended with 33 delegates representing operators, suppliers, consultants and academia from across Portugal and Spain and beyond. The cross disciplinary audience, including delegates from Lundin Mining, Almina, MATSA, FQML, Almonty, Metso, FLSmidth, Nasaco, Akzo Nobel, Olympus and representatives from academia provided a good mix that generated interesting discussions.
The half day seminar hosted presentations from Grinding Solutions, Petrolab who we work closely with to provide mineralogical data to clients and IntelliSense.io, who we are currently in discussions with regarding remote monitoring and optimisation of mineral processing plants.
After Nick Wilshaw, Grinding Solutions Managing Director, kicked off proceedings, James Strongman of Petrolab presented an interesting overview of how mineralogy at the mine site can benefit operations. This was then followed by Klass van der Wielen, Grinding Solutions Senior Metallurgist, who discussed how mineralogical data, such as that generated by Petrolab, can be used to simulate metallurgical behaviour. IntelliSense.io product lead Mark de Geus, continued the theme on how analysis and simulation can be used to predict performance with a presentation on a how real time simulation can lead to unit optimisation. The final two presentations were given by James Gaydon on the factors that should be considered when looking to optimise your grinding circuit, and Dr Kathryn Hadler who discussed how physics can be used to understand the chemistry of flotation. Both James and Kathryn are Senior Metallurgists with Grinding Solutions.
Following the presentations, a technical panel was held to discuss some of the points raised in the presentations as well as technical challenges being encountered by delegates. The afternoon was closed out with a Sundowner, allowing presenters and delegates to relax and continue discussions from the Seminar.
Overall, the Seminar was a great success, with almost all major operations in the surrounding region sending representatives and the talks being well received by the audience. Grinding Solutions plan to rollout similar seminars in different regions in the near future in the hope it will be of as much interest to others as it was to those in Spain and Portugal. Please contact us if you would like to attend a Seminar in your region.
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We are excited to be hosting the next Cornish Mining Sundowner on 19 October 2017 to mark the opening of our newly extended laboratory and office facilities:
Please e-mail us at firstname.lastname@example.org for more information or to let us know you plan to attend!
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Grinding Solutions are hosting a Technical and Innovation Seminar on Friday 29th September 2017 in Castro Verde, Portugal.
The seminar has been tailored to showcase relevant technical developments and innovation in mineral processing. The seminar will consist of a combination of presentations and questions with a view to having an open dialogue and learning culture.
The presentation titles for the seminar are:
There will also be a technical panel to answer any questions followed by a Sundowner to finish the afternoon session.
To download the full agenda and presentation abstracts please click here:
To register to attend the workshop please follow this link:
MEi are our exclusive media partner for event:
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Teresa Norejko has joined us for the summer after completing her third year at Swansea University studying Chemical and Process Engineering. Teresa has worked with us for the previous two summers helping with a number of projects including SMD research into grinding media optimisation, large scale kaolin refining projects and flotation work. We are pleased to have Teresa here once again and this summer she will be working in the laboratory gaining more experience whilst working alongside our team on various projects.
Teresa will also be joining us in September on a placement as part of her Masters.
‘I am thrilled to be back at Grinding Solutions, and look forward to working as part of the lab team!’ – Teresa Norejko.Back to top
Several members of our team attended the Physical Separation ’17 conference organised by MEI in nearby Falmouth, and we sponsored the evening drinks at award-winning real ale pub ‘The Front’. The conference was very well-attended, with some big names from the industry turning up, and many interesting new concepts were presented. Conference reports can be found here on MEI’s blog.
On the back of the conference, we have had several exciting visits at Grinding Solutions week. On Wednesday we were visited by Bill Weldon of Australian company Mineral Technologies Pty Lt. Grinding Solutions and Mineral Technologies are finalising an agreement which will see us install five of their spiral separators to provide gravity separation capabilities. The following industrial-sized spirals are due to be installed at our facilities in this summer:
We have also recently expanded our hydrocyclone offering, we now have 1cm, 1”, 2”, 3” and 5” hydrocyclones available with a range of shapes (stub and conventional), spigots and vortex finders, enabling us to do hydrocylcone test work in the 1 – 70µm range. By providing flexible desliming capabilities, the hydrocyclone/spiral separator combination provides an effective solution for gravity separation projects.
Also visiting on Wednesday was Jens Bergmann of TOMRA, who provide a range of automated sorting solutions for the mining and recycling industry. At GSL, we see automated sorting as an area of mineral processing with great potential for growth, which is an opinion shared by many in our industry judging by preliminary results from our innovation survey (more on this to follow soon). Sorting technology is developing rapidly compared to other fields of processing technology, and it was interesting to hear about the latest developments in this field from Jens such as the ‘Lightsabre’ laser sorting technology.
On Thursday Steve Flatman and Mike Battersby of Maelgwyn Mineral Services visited to discuss the installation of a 15kW stirred ceramic media mill as well as the commissioning of the MMS Aachen Reactor , both of these technologies will be available for test work in our expanded laboratory facilities in the next few months.Back to top
Grinding Solutions is excited to welcome David Coulton and George Riley to continue to work on innovative and exciting technologies in the mineral processing industry.
David is currently in his 2nd year at Camborne School of Mines. He is working with Klaas van der Wielen to streamline and verify a statistical simulation of flotation mass yield, recovery and concentrate grade incorporating losses and dilution from liberation analysis data. Once verified, the simulation will allow Grinding Solutions to give fast and reliable results to clients without requiring large amounts of test material. In the future, the simulation has the potential to be tailored to almost all separation techniques, making it an excellent tool for prefeasibility studies.
In addition to this, David will be assisting our metallurgist Jack Carr in final preparations for publication of his Masters project on biohydrometallurgy, and the effects of fine grinding as a pre-treatment of biological leaching. This is also an area that Grinding Solutions are expanding into, with preparations nearly complete for the set-up of our new cyanide, hydrometallurgical and bio-leaching lab.
George is currently studying for a master’s degree at Camborne School of Mines in Mining Geology after reading Geology at University College London which he graduated with first class honours.
George’s masters project is being carried out in conjunction with Grinding Solutions and Chris Bryan at the Environmental and Sustainability Institute (ESI) at the University of Exeter. This research and development project is also linked with a major mining company. The aim of the project is to investigate the processing of a copper slag material. This will involve grinding and flotation test work at Grinding Solutions, to produce a sulphide concentrate at a range of size fractions. The resulting material will then be used to perform as series of chemical and biological leach tests at the Biohydromet labs on the University of Exeter Penryn campus.
Grinding Solutions recognises that innovation can play an important role in the future of the mineral processing industry. Have your say on the role of innovation in the industry via this anonymous and short survey:Back to top
We are looking forward to Physical Separation 2017, set to be another well prepared and arranged MEI Conference.
Areas of significant interest include ore sorting techniques, where technological advances have resulted in capital and operating costs reductions, enabling primary upgrading of ore. This can result in doubling the feed head grade of many deposits. Understanding the mineralogy and liberation is essential for these processes to work efficiently, which is where we are currently focussing a great deal of effort in collaboration with Petrolab (another Cornish company, based in Redruth). Upgrading prior to grinding and processing can give significant reduction in plant operating costs albeit at the expense of some recovery. Mineral identification, quantification and size estimation is a theme that runs through all physical separations and is a key technique we use in most of our project evaluation work. These techniques also apply to all the subjects included in the Physical Separation programme.
Following Day 1 of the conference and the Guided Coast Path Walk we’ll be buying a round at the The ‘Front, Custom House Quay Falmouth, TR11 3JT, Thursday 15th June. See you there!
Keep in touch to see how these themes develop and extend across MEI’s Flotation ’17, Comminution ’18 and Process Mineralogy events. We are proud to be sponsoring Comminution ’18.
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As part of our ongoing expansion, we have taken delivery of a filter press, kindly on loan to us from Siltbuster. The unit consists of 11 plates measuring 25×25 cm, giving a working volume of 10l. Currently a low-permeability (1.1 l/dm2 min) multifilament cloth is installed for clay applications, but other, higher permeability cloths (up to several orders of magnitude) are also at our disposal for treating of other materials.
Whilst not constituting a piece of ‘test equipment’ as such, it will allow us to work considerably more efficiently on projects that produce a lot of slurry with fine material, such as a recent pilot plant project for blunging and classification of clay prior to magnetic separation and calcination.
Should you have any questions about the specifics of this unit or other services we offer, then please feel free to contact us.
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Mike Cook has joined the Grinding Solutions team as a Senior Project Metallurgist today. Mike joins from SGS Mineral Services and has a wealth of experience in leaching and flotation. Mike has 10 years’ experience in the industry and has an MSc in Mineral Processing and Extractive Metallurgy from Camborne School of Mines.
‘We are very pleased that Mike has chosen to join the team which expands our expertise and capabilities in leaching and flotation. With Mike joining and new lab space coming online in two months’ time we’ll have column and bottle rolls to enable us to provide leaching services which will extend our offerings to our clients.’ Nick Wilshaw, Managing Director
If you would like to discuss any of these new services please get in touch.Back to top