http://www.engineeringnews.co.za
  SEARCH
Login
R/€ = 13.14Change: -0.15
R/$ = 12.05Change: -0.20
Au 1200.03 $/ozChange: -6.12
Pt 1139.50 $/ozChange: -16.00
 
 
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
 
Agriculture   Automotive   Chemicals   Competition Policy   Construction   Defence   Economy   Electricity   Energy   Environment   ICT   Metals   Mining   Science and Technology   Services   Trade   Transport & Logistics   Water  
What's On Press Office Tenders Suppliers Directory Research Jobs Announcements Letters 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
Chute|Engineering|South Arizona|Africa|Chute|Chutes|Conveyors|Copper|Crushing|Design|Environment|Flow|Fortesque Metals Group|Freeport-McMoRan|M&J Engineering|M&J Engineering Weba Chute Systems|Mining|PROJECT|System|Systems|Terra Nova Technologies|Weba Chute Systems|Africa|South Africa|Turkey|United States|Kisladag Mine|Morenci Mine|Safford Mine|Solomon Mine|Chute|Crushing|Flow|Maintenance|Service|Solutions|Systems|Alwin Nienaber|Drilling|Chute|TNT|Arizona|Western Australia|South Arizona|Southeast Arizona|Western Australia|Superflow Technology
Chute|Engineering||Africa|Chute|Chutes|Conveyors|Copper|Crushing|Design|Environment|Flow|Mining|PROJECT|System|Systems||Africa|||Chute|Crushing|Flow|Maintenance|Service|Solutions|Systems|Drilling|Chute||||
chute-anniversary|engineering|south-arizona|africa-company|chute|chutes|conveyors|copper|crushing-company|design|environment|flow-company|fortesque-metals-group|freeportmcmoran|mj-engineering|mj-engineering-weba-chute-systems|mining|project|system|systems-company|terra-nova-technologies|weba-chute-systems|africa|south-africa|turkey|united-states|kisladag-mine|morenci-mine|safford-mine|solomon-mine|chute-industry-term|crushing|flow-industry-term|maintenance|service|solutions|systems|alwin-nienaber|drilling|chute-product|tnt-product|arizona|western-australia|south-arizona-region|southeast-arizona|western-australia-region|superflow-technology
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.

Comment Guidelines (150 word limit)
 
 
 
 
 
 
 
 
Other Announcements News
Keysight Technologies, today introduced measurement software designed to help engineers quickly and accurately characterize PAM-4 (pulse amplitude modulation with four amplitude levels) signals using the Keysight V-Series, Z-Series, and S-Series real-time...
Following approval of the prefeasibility study prepared for the greenfield Golpu Project in Papua New Guinea, WorleyParsons has now embarked on the feasibility study stage. Adopting an innovative approach, the PFS split the project into two stages, the first...
Multotec is aiming to share the experience and expertise it has gained in the South African coal sector with the potentially lucrative Indian coal sector. With 60 coal processing plants and 300 million tons of run-of-mine coal mined a year, the South African coal...
More
 
 
Latest News
The government of St Helena (SHG) and its Department for International Development (DFID) on Friday appointed airline Comair as the provider of air services to St Helena with the Island’s first airport opening in 2016. Comair would offer a weekly Saturday service,...
The Department of Communications (DoC) digital terrestrial television (DTT) project team was accelerating its efforts to “revive” South Africa’s long anticipated transition from analogue to digital broadcasting. After a more than six-year delay, the next few weeks...
Paul-Roux de Kock
Residential property prices are forecast to grow at 7.2% this year, on the back of 6.72% growth in 2014.
More
 
 
Recent Research Reports
Projects in Progress 2015 - First Edition (PDF Report)
In fact, this edition of Creamer Media’s Projects in Progress 2015 supplement tracks developments taking place under the Renewable Energy Independent Power Producer Procurement Programme, which has had four bidding rounds. It appears to remain a shining light on the...
Electricity 2015: A review of South Africa's electricity sector (PDF Report)
Creamer Media’s Electricity 2015 report provides an overview of State-owned power utility Eskom and independent power producers, as well as electricity planning, transmission, distribution and the theft thereof, besides other issues.
Construction 2015: A review of South Africa’s construction sector (PDF Report)
Creamer Media’s Construction 2015 Report examines South Africa’s construction industry over the past 12 months. The report provides insight into the business environment; the key participants in the sector; local construction demand; geographic diversification;...
Liquid Fuels 2014 - A review of South Africa's Liquid Fuels sector (PDF Report)
Creamer Media’s Liquid Fuels 2014 Report examines these issues, focusing on the business environment, oil and gas exploration, the country’s feedstock supplies, the development of South Africa’s biofuels industry, fuel pricing, competition in the sector, the...
Water 2014: A review of South Africa's water sector (PDF Report)
Creamer Media’s Water 2014 report considers the aforementioned issues, not only in the South African context, but also in the African and global context, and examines the issues of water and sanitation, water quality and the demand for water, among others.
Defence 2014: A review of South Africa's defence industry (PDF Report)
Creamer Media’s Defence 2014 report examines South Africa’s defence industry, with particular focus on the key participants in the sector, the innovations that have come out of the sector, local and export demand, South Africa’s controversial multibillion-rand...
 
 
 
 
 
This Week's Magazine
Projected capital expenditure (capex) in the South African automotive assembly industry should reach a record R7.48-billion this year, says the National Association of Automobile Manufacturers of South Africa (Naamsa) in its 2014 fourth quarter business review. Capex...
After several years of navigating project-threatening red tape and currency fluctuations, the 4.4 MW Bronkhorstspruit biogas power plant, which will supply clean energy to a leading automotive manufacturer in Gauteng, is expected to enter production before June....
RESOURCEFUL The raw material for the pilot plant would be supplied from the dissolving wood pulp plants at Sappi’s Saiccor and Ngodwana mills, in South Africa, and the Cloquet mill, in the US
South African paper and pulp producer Sappi reported earlier this month that it would build a pilot plant for the production of low-cost Cellulose NanoFibrils, or CNF (nanocellulose) at the Brightlands Chemelot Campus in Sittard-Geleen in the Netherlands.
The long-term outlook for Nigeria is a country that has the potential to be very strong. So affirmed International Monetary Fund (IMF) Nigeria Mission Chief and Senior Resident Representative Dr Gene Leon on recently. "But we are starting from a point of huge...
Poor infrastructure planning and inadequate maintenance are becoming increasingly problematic for new developments and the associated infrastructure required to support such developments. In many urban and rural municipalities, the state of infrastructure has been...
 
 
 
 
 
 
 
 
 
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
Subscribe Now for $96 Close
Subscribe Now for $96