Tag Archives: manganese

Kwatani screens and feeders tackle manganese ore in South Africa

As a vital aspect of a plant expansion at a manganese mine in the Northern Cape of South Africa, Kwatani says it is supplying four heavy duty vibrating screens and 10 feeders to help boost throughput.

According to Kwatani CEO, Kim Schoepflin, this large-scale equipment is custom-designed and engineered for tonnage to meet the mine’s challenging operational requirements.

“Manganese ore is very demanding on vibrating screens as it has a high specific gravity and is also very abrasive,” Schoepflin says. “Our machines are engineered to perform the application’s duty requirement while being robust enough to deliver maximum uptime.”

The units being supplied include a 3.6 m double-deck scalping screen, a 3 m double-deck screen, a 2.4 m screen and a 1.8 m dewatering screen. A local OEM that has designed and engineered vibrating screens for over four decades, Kwatani has built a reputation for world-class expertise and capability, it says.

“Customers choose us for our engineering track record – developing technology that can manage the tonnages they require,” Schoepflin says. “This means understanding each mine’s specific conditions, and then building a design to meet a range of complex mechanical and metallurgical factors.”

The order to the mine is being rolled out on time and on specification to the customer’s satisfaction, according to Kwatani COO, Kenny Mayhew-Ridgers.

“The efficiency and quality of our work process allows us to design, manufacture and deliver custom-designed screens in the same timeframes that other OEMs deliver standard models,” Mayhew-Ridgers said.

This is particularly demanding as custom-designed equipment undergo an intensive design process after being verified by rigorous finite element analysis in-house, Kwatani says. Prior to dispatch, all units endure intensive testing before being commissioned on a customer’s site. For this reason, Kwatani boasts its own in-house advanced testing facilities at its Kempton Park facility, in South Africa. Aligned to ISO 9001 standards, the testing protocols have been developed in-house with decades of experience. This allows full testing similar to cold commissioning, even before delivery to site.

SRK, Coffey and Royal IHC to work on Giyani’s K.Hill manganese feasibility study

Giyani Metals has completed the feasibility study tendering process for its K.Hill manganese project, in Botswana, selecting SRK Consulting and a joint bid by Coffey, a Tetra Tech Company, and Royal IHC to conduct the study.

The tendering process began in early November with six service providers invited to bid.

The scope of work in the request for proposal (RFP) was divided into two work packages to run in parallel.

Work Package 1 (WP1) encompasses all the technical mining disciplines but will exclude processing, infrastructure and environmental/social. Work Package 2 (WP2) mainly encompasses the processing, infrastructure, and project execution disciplines.

Bidders were given the option to bid for both work packages, but the RFP stated that work packages may be awarded individually.

SOURCE: Manganese Metal Company, South Africa

SRK, who completed the preliminary economic assessment for K.Hill earlier this year, was awarded WP1 while WP2 was awarded to the joint Coffey and Royal IHC bid. On the latter, the company said: “The joint bid provides Giyani with specialised experience from Tetra Tech in the process of making electrolytic manganese metal (EMM – pictured) in a solvent extraction/electrowinning plant and mining engineering and construction experience from Royal IHC.”

The environmental and social impact assessment (ESIA) was tendered separately and bids are currently being assessed by the company, Giyani said.

Giyani will now move to the contracting phase which commences with a site visit with SRK, Coffey, and Royal IHC during the week of December 16.

Robin Birchall, CEO of Giyani, said: “Commencing the FS for K.Hill, along with the ESIA which we will kick off shortly thereafter, is a very important step forward, one that will prepare the company for the next and most important phase of its development, becoming one of the leading independent producers of high purity manganese for the battery electric vehicle market.”

Mike Beare, Project Manager for SRK, said: “SRK is very much looking forward to building on the work of the PEA and applying its skills to further development of the K.Hill project. This will assist Giyani with their continued growth into the burgeoning battery metals sector which we see as an area of considerable investment in years to come.”

Jacques du Toit, Project Director for Coffey & Derk Hartman, Director EPC & Project Delivery for IHC Mining, part of the Royal IHC Group, said: “We recognise that Giyani’s K.Hill manganese project offers outstanding potential for investors and look forward to providing our combined services and solutions to Giyani for the development of the K.Hill manganese project.”

The PEA on K.Hill was based on the 1.1 Mt inferred resource and showed a nine-year potential life of mine producing 245,000 t of what the company called “high-purity electrolytic manganese metal” (HPEMM). Pre-production capital was estimated at $108.5 million and the post-tax net present value (10% discount) was estimated at $285 million based on a projected average price of $4,700/t for HPEMM of 99.9% Mn over the life.

Black Rock manganese mine chases efficiency gains with Epiroc’s Mobilaris solution

Epiroc says its Mobilaris Mining Intelligence (MMI) is set to help improve decision making at Assmang’s Black Rock underground manganese mine in South Africa.

The mining original equipment manufacturer said this will be the first installation of the decision support solution in a room and pillar mine.

Pierre Becker, General Manager Black Rock mine, said MMI will help to increase production and utilisation at the mine. “The solution enables an unprecedented opportunity for mining personnel to make right decisions faster than ever before,” he said.

Through MMI, the Black Rock Mine control room will evolve to a source of real-time production data fully integrated with planning, task dispatch, machine telemetry data, mobile operator clients and a layer of analytics to collect and monitor insights and key performance indicators for the mine production, Epiroc said. “The project is expected to yield significant improvements in employee safety, process efficiency and overall production,” the company added.

MMI enables superior situational awareness and is designed to visualise and support mining operation in all its complexity, in real-time, according to Epiroc. It provides a 3D real-time information model where the position of machines, vehicles and personnel are recognised, and other vital information sources like shift planning, machine and production data are presented.

Andrew Main, Regional Business Line Manager, Underground Rock Excavation division for Southern Africa, Epiroc South Africa, said: “Epiroc will support Black Rock’s business improvement processes with the MMI solution. The globally acclaimed Situational Awareness together with Short Interval Control package will take their operations to the next level of performance gains.”

System installation is expected in June, Epiroc said.

Epiroc, Murray & Roberts Cementation set for South Africa manganese mine ramp up

Epiroc has won a significant mining equipment order from contractor Murray & Roberts Cementation, with multiple drill rigs and bolters set to be delivered to the Kalagadi manganese mine in the Northern Cape of South Africa.

The equipment, which includes Boomer 282 face drilling rigs and Boltec 235 bolting machines (one pictured), will be used for the underground production build up at Kalagadi, where Murray & Roberts Cementation is the contractor.

“The machines will ensure that the mine is operated with enhanced productivity, safety and cost efficiency,” Epiroc said.

The orders total more than ZAR160 million ($10.9 million), of which more than half was placed in the September quarter.

In addition to the drilling and bolting machines, Epiroc will supply rock drilling tools, spare parts and on-site service support to back up Murray & Roberts Cementation.

According to a Business Day report from earlier this year, the Kalagadi mine is expected to generate 3 Mt/y of ore to convert into 2.4 Mt/y of sinter at full capacity.