Tag Archives: ball mill

FLSmidth to supply gearless overland conveyor technology to Southeast Asia mine

FLSmidth says it has been chosen to supply an overland conveyor (OLC) for a large, established copper-gold mine in Southeast Asia, which follows a large equipment order from the same customer and site earlier in 2022.

The pit-to-plant conveying system, which is over 5 km in length, has gearless drive technology. The order, including design and supply, was booked in the September quarter of 2022 and is valued at approximately DKK330 million ($44 million).

The conveyor order follows the March quarter 2022 announcement that FLSmidth had been chosen to supply two gearless SAG mills, two gearless ball mills and thickener technology to the same site. This new FLSmidth overland conveyor will deliver the ore from the pit to the new FLSmidth SAG and ball mills at the process plant.

The conveying system, part of the newly acquired tk Mining portfolio, is expected to deliver a significant reduction of operating expenditure due to its gearless drive technology, which uses less energy and results in less maintenance and higher availability during operations.

Mikko Keto, Group CEO at FLSmidth, said: “This overland conveyor system order not only continues our robust relationship with this customer, but it also demonstrates the strength of our portfolio following the acquisition of the tk Mining business. This is evidence that FLSmidth is a global leader in overland conveyors and gearless drive technology. The customer will benefit from our full flowsheet coverage, and we are proud to have provided the majority of the equipment to this mine site expansion.”

The order supports FLSmidth’s MissionZero ambition to enable customers to mine in a more sustainable manner, it said. Overland conveyors significantly reduce the need for diesel-powered truck fleets on mine site and makes material transportation more cost-effective and resource efficient.

FLSmidth to highlight full flowsheet expertise with ShalkiyaZinc project delivery

FLSmidth has signed a contract, valued at around DKK950 million ($130 million), to supply a range of mineral processing equipment to ShalkiyaZinc, the operator of a zinc-lead mine in the Kyzylorda Region of Kazakhstan.

The equipment will transform the plant into a world-class facility that efficiently separates minerals with a minimised environmental impact, the OEM says.

Under the agreement, FLSmidth will supply two underground crushing stations with a materials handling system to the process plant; a full package of comminution and separation equipment, including SAG and ball mills, mill circuit pumps and cyclones; the zinc-lead concentrate flotation and regrinding circuit, including nextSTEP, VXP vertical mills, concentrate thickeners and Pneumapress filters; and reagents preparation and dosing area. Full plant automation is also included, as well as installation and commissioning supervision services.

The new concentrator will be supported from FLSmidth’s new in-country service Supercentre in Karaganda, Kazakhstan.

The equipment delivery is to be completed during 2024, with commissioning to start before the end of that year.

Mikko Keto, Group CEO at FLSmidth, said: “We are excited to receive this first order from ShalkiyaZinc, which highlights our full flowsheet expertise. The wide range of equipment included in the order will help ShalkiyaZinc save on both capital expenditure and operating expenditure; our new nextSTEP flotation technology will improve the quality of the concentrates, the SAG mill will provide more flexibility, while the automation and digital solutions will further enable water and energy savings alongside safer operations.

“We look forward to making this a success on so many levels.”

Assel Rakhimova, Chief Project Director of Tau-Ken Samruk, which owns ShalkiyaZinc, said: “After testing and basic design work executed by FLSmidth, we are pleased to enter this new phase of collaboration with the procurement of critical technologies to improve the productivity and sustainability of our plant. We believe in successful execution and look forward to receiving the ordered equipment according to the schedule for installation and to continue working with FLSmidth on commissioning services and spare parts.”

Metso Outotec to deliver world’s largest Premier grinding mills to Kansanshi copper mine

First Quantum Minerals (FQM) has awarded an order to Metso Outotec for two very large horizontal grinding mills for the company’s copper mine expansion at Kansanshi in Zambia.

Metso Outotec’s delivery includes two Planet Positive Premier™ grinding mills with a total installed power of 50 MW – the largest Premier grinding mills Metso Outotec has delivered to date.

To meet the need for efficient and fast replacement of the lining systems, as well as ensuring a long wear life, the ball mill will be equipped with the Metso Outotec Megaliner™ and the SAG mill will be equipped with Metso Outotec metallic mill lining and a high-performance discharge system, it explained.

FQM’s Kansanshi mine, located near Solwezi in the North-western Province of Zambia, is among the largest copper mines in the world and the largest in Africa.

First Quantum Minerals is currently working on its further expansion (the Kansanshi S3 Expansion), which includes a standalone 25 Mt/y processing plant that will increase copper production substantially.

Once the expansion is completed, copper production from Kansanshi is expected to average approximately 250,000 t/y for the remaining life of mine to 2044.

The Premier horizontal grinding mills are customisable solutions built on state-of-the-art grinding mill technology, process expertise, and design capability, Metso Outotec says. The Premier horizontal grinding mills are engineered to “excel and create vast possibilities” for customers and applications.

Earlier this week, Metso Outotec was awarded what it says was a major contract for the delivery of sustainable crushing, screening and grinding technologies to a greenfield iron ore project in South America.

Metso Outotec to upgrade four ball mills at Asia Pacific copper-gold mine

Metso Outotec says it has signed a services contract for the delivery of four ball mill upgrade packages to a copper and gold mine in Asia Pacific, which has a value of €19 million ($21.4 million).

Refurbishment projects for older, existing assets are an efficient method to extend a mill’s operating life, increase energy efficiency and minimise waste and plant downtime, Metso Outotec said. Additionally, equipment refurbishments lead to improved machine availability and safety by delivering the latest available technology.

Jonathan Allen, Senior Vice President, Grinding, Bulk and Pyro business line of Metso Outotec, said: “We are pleased to have been chosen as the supplier for the grinding mill refurbishment project. The customer’s performance objectives were achieved by offering a technical solution which increased the operating volume of the mill and allows for future process optimisation. Providing these 30-plus-year-old mills a new lease of life is exciting for Metso Outotec and builds on our sustainability promise of delivering circular offerings.”

Metso Outotec says it has delivered and serviced over 8,000 grinding mills globally, including some of the largest and most powerful mills in the world.

Abra Mining selects CITIC HIC ball mill, Ishigaki filter press for base metals project

Abra Mining has placed orders for two key long-lead items for the processing plant at its namesake base metal project in Western Australia, tapping CITIC-Heavy Industries for the ball mill and Ishigaki for the horizontal filter press.

The project, owned 77.28% by Galena Mining, is set to turn into a mine and processing facility with a 16-year life producing a high-value, high-grade lead-silver concentrate containing around 95,000 t/y of lead and 805,000 oz/y of silver after ramp-up. First production is scheduled for 2023.

Abra Mining, the joint venture company for the Abra base metals project, confirmed it had placed orders for the ball mill and the concentrate filter for the 1.2 Mt/y plant; items that have a combined order value of approximately A$9 million ($6.6 million).

Abra’s ball mill will be manufactured by CITIC-Heavy Industries Co Ltd (CITIC HIC) in Luoyang, Henan, China. The mill ordered is a 5 m diameter x 5.6 m effective grinding length fixed speed, single-pinion driven 2.5 MW ball mill.

The concentrate filter (horizontal filter press) will be manufactured by Ishigaki Co Ltd at its manufacturing facility in Sakaide on Kagawa Island, Japan. The unit ordered is a LASTA MC fully automated horizontal batch pressure filter.

Galena Managing Director, Tony James, said: “Ordering this equipment now is a key step in the plant build program for Abra. The ball mill and the concentrate filter are internationally-sourced long lead-time items required for the plant and the company, in consultation with GR Engineering, has chosen trusted, industry-leading suppliers for both items.”

Metso Outotec to help modernise Nornickel’s Talnakh processing plant

Metso Outotec says it has signed an agreement to deliver its “industry-leading comminution equipment” to Norilsk Nickel’s refurbishment project at the Talnakh processing plant in Norilsk, Russia.

The contract includes delivery of one SAG mill and two ball mills with a total installed power of 36 MW, as well as two HP series pebble crushers. Metso Outotec will also supply spare parts and consumables, including metallic mill liners, and will supervise the installation of the equipment. The delivery is scheduled for 2022.

While the order value was not disclosed, Metso Outotec said the order has been booked in its December quarter 2020 orders received.

Sergey Dubovitsky, Senior Vice President, Strategy, Strategic Projects, Logistics & Procurement at Norilsk Nickel, said: “The modernisation of the Talnakh processing plant is one of the priority projects for Norilsk Nickel. Its implementation will significantly increase the volume and efficiency of production. To achieve this, we utilise the most modern technologies from Metso Outotec.”

Stephan Kirsch, President, Minerals business area, Metso Outotec, added: “We are pleased to continue our partnership with Norilsk Nickel. The supply of leading-edge equipment from Metso Outotec for the reconstruction of the comminution section at the Talnakh concentrator will enable an increase in the amount of ore processed. Our company has taken part in several projects with Norilsk Nickel to boost throughput rates of the processing facilities, and we are grateful for having been again selected to provide reliable solutions for a project as significant as Talnakh.”

DRA under budget and ahead of schedule at NST’s Jundee expansion project

DRA Global says it has completed its engineering, procurement and construction management (EPCM) contract under budget and ahead of time for Northern Star Resources at the Jundee gold mine, near Wiluna, Western Australia.

The Jundee mining operation is situated in the Northern Yandal Greenstone Belt, with the mine yielding a record 300,000 oz for Northern Star in the year ending June 30, 2020.

Jundee’s processing circuit comprises a two-stage crushing circuit, SAG and ball mill, and conventional carbon-in-leach plant. The ball mill upgrade, undertaken by DRA, increased processing plant capacity to a nominal design throughput rate of 2.7 Mt/y, from 2.2 Mt/y.

DRA delivered the EPCM project scope under budget and ahead of time, with ore commissioning achieved some six weeks ahead of schedule in a total duration of 35 weeks, it said.

“DRA’s project team achieved this outcome by working in close collaboration with the Northern Star project and operations team, the equipment vendors and construction sub-contractors,” it said.

Delivery of the project required overcoming challenges presented by the COVID-19 pandemic, including risk mitigation strategies being initiated to maintain the accelerated project schedule, according to the company.

Northern Star’s General Manager Processing, Simon Tyrrell, said DRA had consistently met and exceeded performance expectations through a collaborative approach to the Jundee ball mill project delivery.

DRA was engaged on the EPCM contract after having completed an engineering and cost study which included scope definition, design, planning, capital and operating cost estimation. The project follows several previous plant upgrades and studies successfully completed by DRA at the Jundee gold mine, which have contributed towards the continuous production growth seen at the mine over the last four-to-five years, DRA said.

The process plant shutdown and tie-in of the new ball mill was performed in conjunction with the Northern Star operations team and contractors without incident, and the process plant has since ramped up to run consistently above nameplate design capacity, the company added.

Zest WEG keeps DRC mining project on track in face of COVID-19 restrictions

The Zest WEG Group, a subsidiary of leading Brazilian motor and controls manufacturer WEG, is intent on keeping its customers’ projects on track despite COVID-19-related travel restrictions and has devised a way to complete the final step in the manufacturing process remotely.

In an innovative first to keep a customer’s mining project in the Democratic Republic of the Congo on schedule, Zest WEG successfully conducted a remote witness test of medium voltage (MV) variable speed drives (VSDs) in WEG’s Brazil factory.

David Spohr, Business Development Executive for high-voltage equipment at South Africa-based Zest WEG, said these extraordinary times called for extraordinary measures.

“With the restrictions on international travel, we had to think creatively about how to complete this final step in the manufacturing process – the witnessed factory acceptance test (FAT) – before the equipment could be shipped to the DRC site,” he said.

Under normal circumstances, these tests would require the customer to travel to Brazil and spend a week at the factory witnessing and signing off a range of detailed test and equipment requirements.

This order comprised two 7 MW, 3,300 V WEG MVW01 VSDs for the ball and SAG mill drive application and two 1.2 MW, 3,300 V WEG MVW01 VSDs for the high pressure grinding roll (HPGR) mill application. Both applications required non-standard features, according to the company, namely “frozen charge protection” software on the ball and SAG mill application and a “master and follower” configuration on the HPGR mill application, it said.

Spohr said: “It was essential that we did not delay the customer’s project, so we arranged to conduct the witness test using web-based communication software. This allowed the participation of Zest WEG experts, the engineering contractor and the end user, all from the safety of their homes in Johannesburg – communicating with five testing technicians in the WEG factory in Brazil.”

Using a high-definition camera and web-based communication software, the factory technicians were able to walk the contractor and end user through each element of the FAT, with clear and real-time visual images of the test results and equipment on the factory floor, according to the company.

The tests continued for three days, beginning at 13:00 and ending at 19:00 to account for time zone differences. Testing covered three key areas – PLC communication software integration, full functional testing and full load testing, according to the company.

“As with any other witnessed FAT, the customer was provided with a comprehensive results report by WEG,” Spohr said. “This enabled the customer to check, in exactly the same way, that the remote FAT results were within the required tolerances.”

Spohr noted that this pioneering step is likely to influence the way these tests are done in future.
“It has shown that the testing can be done to the same standards, but with significant savings in time and cost,” he said.

Metso wins major mill lining order from Russian Copper Company

Metso is to supply SAG and ball mill linings for the facilities of Russian Copper Company’s (RCC) in-development Tominsky processing plant (TPP), in Russia.

The TPP is RCC’s biggest investment project and one of the largest scale and high-tech projects commissioned in Russia in recent years, according to RCC. The plant will be constructed at the Tominsky copper porphyry deposit and will have a capacity of 28 Mt/y of copper ore, producing up to 500,000 t/y of copper concentrate, the company said.

The Metso contract complements two earlier mill lining contracts for RCC’s Mikheevsky processing plant, signed in December 2019, the mining OEM said.

With a combined value of approximately €24 million ($26.1 million), the three orders have been booked for Metso’s March quarter 2020 (Tominsky) and December quarter 2019 (Mikheevsky) orders received, it said.

First shipments started already in March, with the RCC deliveries covering almost one year’s worth of mill lining needs, according to the company.

Alexey Muzychkin, Metso Senior Vice President in Russia and CIS, said: “We are proud to be part of the construction projects of RCC by providing reliable supplies of equipment and spare parts for their plants. We managed to meet the tight delivery schedule required to ensure the smooth operation of RCC’s production facilities.”

Vsevolod Levin, President of RCC, said: “RCC implements the best available technologies at its operations, as well as installs equipment from the world’s leading manufacturers. For this reason, Metso is our long-time reliable partner in implementing the most ambitious projects. This ensures superior operational performance of our enterprises, as well as the safety of technological processes for human health and environment.”

RCC was founded in 2004 and is now one of the biggest copper producers in Russia, according to Metso.

It is a vertically integrated holding company with operational assets in Chelyabinsk, Sverdlovsk, Orenburg, Novgorod, Khabarovsk (all in Russia) and Kazakhstan. RCC manages eight mining enterprises, a hydrometallurgical plant, three metallurgical plants, and a trading company. Together, they cover the complete production cycle, from mining and processing to production and sales.

The company produces copper concentrate, copper cathodes and copper rods, as well as zinc concentrate, refined gold, and refined silver, with its production facilities able to produce 220,000 t/y of copper cathodes and 235,000 t/y of copper rods, Metso said.

Marks reveals Resolution copper concentrator details at SME

There’s some good news for mineral processing equipment suppliers looking to win business from the Resolution copper mine in Arizona, USA: the Rio Tinto/BHP-owned project already has a preliminary concentrator plan in place.

The sticking point is that, according to Anita Marks, Principal Advisor, Process Engineering, Resolution Copper, the plant ground-breaking is not likely for another eight years!

Speaking at the 2020 SME MineXchange Conference & Expo, in Phoenix, Arizona, on Tuesday, Marks revealed the plans for the concentrator at the mine, which when operational could become the largest copper producer in North America.

The project, situated close to the former-operating Magma mine, is currently in the process of deepening Shaft 9 down to a level of 2,086 m deep. The project partners will have spent over $2 billion (Rio Tinto share $1.1 billion) by the end of this year to develop and permit the project, including $302 million of additional expenditure approved earlier in 2019. Marks’ long timeline to groundbreaking is a reflection of the lengthy permitting process the project will have to go through.

Following the shaft deepening – expected to be completed in 2021 – and if the project receives the required approvals, development work for the block cave mine could start to take place.

At the same time as the company is focused on these aspects of the project, Resolution is leveraging the drill core it has obtained to calculate all-important metallurgical information and come up with a preliminary concentrator design.

The project has delineated indicated and inferred resources totalling 1.97 Bt at 1.53% Cu and 0.036% Mo from drilling, so there are many datapoints to draw from when it comes to generating a process flowsheet. It has used 79,000 ft (24,079 m) of core – including 38 full holes and 10 partial holes – 527 grindability samples, 646 rougher/cleaner kinetic tests and three pilot projects to come up with these plans, according to Marks.

Ahead of the concentrator, ore will be crushed underground – possibly with a gyratory crusher – and conveyed underground before being hoisted to surface.

The concentrator looks like having a SAG and ball mill configuration without a pebble mill (at least in the initial stages), plus a large cell bulk flotation circuit with columns for cleaning. It would have a separate float for tailings separation and produce both a copper and molybdenum concentrate.

This has the potential block cave mine producing 120,000 t/d of ore, with plant availability expected to be 92%.

And water consumption and recycling are high on the priority list for the project, with Marks saying the company is trying to reclaim as much water as possible. A tailings thickener is expected at the concentrator itself, with the aim to capture 80-85% of the water used in the process, she said.