http://www.engineeringnews.co.za
  SEARCH
Login
R/€ = 14.64Change: -0.15
R/$ = 10.59Change: -0.09
Au 1283.79 $/ozChange: 2.17
Pt 1403.00 $/ozChange: 3.00
 
 
Note: Search is limited to the most recent 250 articles. Set date range to access earlier articles.
Where? With... When?








Start
 
End
 
 
And must exclude these words...
Close Main Search
Close Main Login
My Profile News Alerts Newsletters Logout Close Main Profile
 
Nelson Mandela 1918 - 2013   Agriculture   Automotive   Chemicals   Competition Policy   Construction   Defence   Economy   Electricity   Energy   Environment   ICT   Metals   Mining   Science & Technology   Services   Trade   Transport & Logistics   Water  
What's On Press Office Suppliers Directory Research Jobs Announcements Contact Us
 
 
 
RSS Feed
Article   Comments   Other News   Research   Magazine  
 
 
Feb 04, 2014

Third Contract Award For Weba Chute Systems Underlines Tnt’s Commitment

Back
South Arizona|Flow|Fortesque Metals Group|Freeport-McMoRan|M&J Engineering|M&J Engineering Weba Chute Systems|Terra Nova Technologies|Weba Chute Systems|South Africa|Turkey|United States|Kisladag Mine|Morenci Mine|Safford Mine|Solomon Mine|Flow|Mining|Alwin Nienaber|TNT|Arizona|Western Australia|South Arizona|Southeast Arizona|Western Australia|Superflow Technology
south-arizona|flow-company|fortesque-metals-group|freeportmcmoran|mj-engineering|mj-engineering-weba-chute-systems|terra-nova-technologies|weba-chute-systems|south-africa|turkey|united-states|kisladag-mine|morenci-mine|safford-mine|solomon-mine|flow-industry-term|mining|alwin-nienaber|tnt-product|arizona|western-australia|south-arizona-region|southeast-arizona|western-australia-region|superflow-technology
More Insight
Download PDF
Terra Nova Technologies (0.05 MB)
 

Three contract awards on three different continents underlines the confidence that Terra Nova Technologies has in South Africa’s Weba Chute Systems from M&J Engineering. TNT’s comprehensive understanding of the benefits that Weba Chute Systems provide in the mining sector led to the most recent contract award for eight chutes at the Morenci opencast copper mine in Southeast Arizona in the Unites States.

“Preceding this award, M&J Engineering Weba Chute Systems is currently supplying seven chutes to the FMG (Fortesque Metals Group) Solomon Mine in Western Australia and recently supplied chutes to Kisladag mine in Turkey,” says Alwin Nienaber, technical director of M&J Engineering.

“We have developed a strategic relationship with US-based TNT which is founded on mutual trust. By carefully analysing the specific needs of each application, we are able to customise solutions that are completely targeted to increase productivity, decrease downtime and maintenance, and provide a better flow of product,” he continues.

The Morenci copper ore mine is owned by Freeport-McMoran and the mining and milling capacity expansion project at the mine will allow it to process additional sulphide ore identified through exploratory drilling. The project is targeting incremental annual copper production of approximately 102 million kilograms in 2014 (a 40% increase from 2012) through increases in mining rates to 815 mtd (metric tons per day) and milling rates to 115 000 mtd (metric tons per day).

The first order for the mine is almost completed and comprises three belt to belt transfer chutes. The first two chutes have been commissioned and are operating successfully. These chutes are located on one of the main lines feeding the mine for leach (MFL) stockpile. They are designed to handle 4 200 tph (tons per hour) on 1 372 mm width belts, running at a speed of 3.6 m/s, with lump sizes of up to 240 mm.

“Our engineering team leveraged their extensive knowledge to tackle the presence of the extremely abrasive material which needs to be handled by the chutes. In addition, the design addressed the client’s concerns around the blockages which occur when the ore is inclined to become sticky during the monsoon season and when mining Diabase deposits,” Nienaber explains.

The five chutes for the second order have been delivered, with installation planned for the fourth quarter of 2013. These chutes will be used for the on sized and screened material of minus 64 mm, which travels from the process plant to the heap leach stockpile.

“This portion of the project presented the M&J Engineering team with a number of engineering challenges. TNT requested a transfer system that would require extended service intervals in order to accommodate the mine’s protracted operational hours. In addition, while the environment is typically very dry, it is however exposed to periodic heavy rainfall at times and the system and the transfer chutes therefore have to cope with the conveying of wet and sticky material,” Nienaber points out.

In order to ensure that the solution closely matches the problem, M&J Engineering deployed an engineer to site to assess the actual conditions. “Based on this feedback and data supplied by TNT and the mine, we were able to engineer chute systems capable of meeting the application and material requirements. We are completely confident that this is a best practice solution, since all data was verified using in-house systems that include discrete element modelling,” Nienaber adds.

With forward planning in mind, the system has been engineered to facilitate the installation of air cannons in strategic locations, should this be required at a later stage.

In addition to the Morenci orders, Freeport-McMoran has awarded M&J Engineering the contract to design two chutes for the Safford opencast copper mine in Arizona. These chutes are handling agglomerated copper ore on its way to the heap leach stockpile.

The Safford mine is one of the most environmentally advanced copper mines ever built and consists of two copper deposits that have oxide mineralisation overlaying primary copper sulphide mineralisation. Safford is a mine-for-leach operation and produces copper cathodes. The operation consists of two open pits feeding a crushing facility with a capacity of 103 000 mtd (metric tons per day). The crushed ore is delivered to a single leach pad by a series of overland and portable conveyors.

Nienaber explains that the chutes are designed to transfer ore to which acid has been added. The chutes will be lined with ceramic tiles to combat toxicity and the acidity of the material. For this reason, the client has refrained from using cascade chutes.

“We advised that the client uses the Weba superflow technology to ensure that full flow of the material is maintained throughout the transfer point. The superflow design overcomes most of the disadvantages of traditional transfer chute designs, such as generation of unwanted fines, excessive wear and tear, noise and dust pollution, spillage, excessive impact and subsequent belt damage. The Stafford mine design also makes use of inserts for quick maintenance and minimised downtime,” Nienaber says.

“Our reputation is built on our ability to carefully analyse each specific client application and devise a solution that will resolve any transfer issues they may encounter. Our engineering and design team utilises its extensive background in providing transfer chutes for a number of local and international mining clients,” Nienaber concludes.

MORENCI MINE PIC 01 : The landscape of Freeport-McMoran's Morenci Mine, located in South Arizona, USA.

MORENCI MINE PIC 02 : The bottom section at the tail end of one of two Weba Chute Systems installed at Morenci Mine, South Arizona, USA.

MORENCI MINE PIC 03 : The reverse section of one of Weba Chute Systems installed at Morenci Mine, South Arizona, USA.

Edited by: Creamer Media Reporter
Comment Guidelines
 
 
 
 
 
 
 
 
Other Announcements News
Updated 2 hours 57 minutes ago 13 to 15 May 2015 will see C-star, an event forming part of the EuroShop family of trade fairs and specifically geared to the Chinese market, being held in Shanghai for the first time. The kick-off for C-star at this year’s EuroShop in February could not have been...
Updated 3 hours ago Heidelberg Mall, due to open in October 2014, has attracted a top line-up of national retailers and it is already 90% let. The mall’s tenant mix includes big-name retailers Checkers, Woolworths, Edgars, Game, Clicks and Dis-chem.
Updated 4 hours ago The latest development from Sonderhoff Chemicals, the flameproof polyurethane foam seal Fermapor® K31-A-45C4-2-UL-FR, complies with US fire protection standard UL 94 HF-1. The seal also has a UL listing for US testing standard UL 50E for switch cabinets and...
More
 
 
Latest News
Updated 2 hours 4 minutes ago As industry prepares for the launch of South Africa’s digital terrestrial migration, the South African Communications Forum (SACF) hosted a workshop to determine the country’s readiness in terms of compliance of set-top boxes [STBs] and access to funding. The...
Communications Minister Yunus Carrim
Updated 2 hours 30 minutes ago The costs of communicating have to drop, Communications Minister Yunus Carrim said on Wednesday. "Clearly, the costs have to come down. It's not just in the interests of the poor and disadvantaged but the economy as a whole," Carrim said in a statement following a...
Updated 2 hours 44 minutes ago Commitments made over the past 16 years, following the 1998 Defence Review, has resulted in a mismatch between what was expected from the South African National Defence Force (SANDF) and the resources allocated to it, causing a decline in most aspects of the...
More
 
 
Recent Research Reports
Steel 2014: A review of South Africa's steel sector (PDF Report)
Creamer Media’s Steel 2014 report provides an overview of the global steel industry and particularly of South Africa’s steel sector over the past year, including details of production and consumption, as well as the country's primary carbon steel and stainless...
Projects in Progress 2014 - First Edition (PDF Report)
This publication contains insight into progress at the delayed Medupi and Kusile coal-fired projects, in Mpumalanga and Limpopo respectively, as well as at the Ingula pumped-storage scheme, which is under construction on the border between the Free State and...
Automotive 2014: A review of South Africa's automotive sector (PDF Report)
The report provides insight into the business environment, the key participants in the sector, local construction demand, geographic diversification, competition within the sector, corporate activity, skills, safety, environmental considerations and the challenges...
Construction 2014: A review of South Africa's construction sector (PDF Report)
Construction data released during 2013 hints at a halt to the decline in the industry during the last few years, with some commentators averring that the industry could be poised for recovery. However, others have urged caution, noting that the prospects for a...
Electricity 2014: A Review of South Africa's Electricity Sector (PDF Report)
This report provides an overview of the state of electricity generation and transmission in South Africa and examines electricity planning, investment in generation capacity, electricity tariffs, the role of independent power producers and demand-focused initiatives,...
Defence 2013: A review of South Africa's defence industry (PDF Report)
Creamer Media’s 2013 Defence Report examines South Africa’s defence industry, with particular focus on the key players in the sector, the innovations that have come out of the defence sector, local and export demand, South Africa’s controversial...
 
 
 
 
 
This Week's Magazine
The Electronic Systems Laboratory (ESL) of the Department of Electrical and Electronic Engineering at Stellenbosch University is strongly reaffirming its position as one of South Africa’s leading centres for satellite technology and expertise. It is currently...
MORE IN SA Phase 2 should see local content on the mainline locomotive increase from 65% to 80% by the end of 2014
The world’s lowest-cost diesel-electric locomotive is not made in China, but in Pretoria, at RRL Grindrod Locomotives’ newly upgraded 30 000 m2 plant. The company’s locomotive pricing is “more competitive than any other original-equipment manufacturer (OEM)...
The South African Defence Review 2012, released to the public at the end of last month (despite the year given in its title) recommends the creation of the post of Chief Defence Scientist. This official would be responsible for the management of defence technology...
AltX-listed engineering technology company Ansys has been awarded an R188-million contract by Transnet to supply integrated dashboard display systems to the freight rail utility’s locomotives. Black-owned and controlled Ansys developed the bespoke integrated system...
South Africa’s sole nuclear power station Koeberg, which is located in the Western Cape, breached a major operations milestone on April 4, which marked the thirtieth anniversary of Unit 1 having been connected to the grid. Eskom, which operates the two-unit plant,...
 
 
 
 
 
 
 
 
 
Alert Close
Embed Code Close
content
Research Reports Close
Research Reports are a product of the
Research Channel Africa. Reports can be bought individually or you can gain full access to all reports as part of a Research Channel Africa subscription.
Find Out More Buy Report
 
 
Close
Engineering News
Completely Re-Engineered
Experience it now. Click here
*website to launch in a few weeks