The SAIMM is a professional institute with local and international links aimed at assisting members source information about technological developments in the mining, metallurgical and related sectors.
twitter1 facebook1 linkedin logo
 

News

HOW ELECTRONICS CAN RELEASE THE IMAGINATION

It is self-evident that economic pressure demands that today’s mines stay ahead and stay competitive. The challenge, however, is to find fresh approaches in the quest to attain maximum efficiency and optimal operational effectiveness.

One such nascent approach is to consider the optimization of the whole value-adding process of mining rather than focusing on individual activities in isolation, a process that can lead to poor investment decisions in critical areas of operation.

This concept is oftencalled ‘mine to mill’. It is never easy to establish optimal relationshipsbetween different mining operations, but there is one aspect that affects all operations: the quality and consistency of fragmentation.

In many instancesan inability to control fragmentation during blasting has been unchallenged,leading to significant investment in time and money to manage the consequences of such variation.

This talk discusses the use of electronic detonators in providing a solution to poor and inconsistent primary blasting.

Electronically programmed detonators provide not only the ability to vary a key parameter, namely timing, but also the opportunity to extract blast data to improve subsequent blasts.

The current understanding of the effect oftiming, accuracy, and scatter on rock fragmentation is reviewed and offers reasons why there is significant progress in controlling blast results.

As greater certainty of blast results is achieved so it is possible to tune the outcome to optimize the performance of downstream processes.

The ability to predictably alter blasting variables, such as fragmentation, throw, wall stability, and vibration, using feedback from the downstream process, is
a huge advantage.

Two case studies are examined, which demonstrate the benefits of the technology on the economics of the operations under review.

DR. GYSBERT VAN ROOYEN LANDMAN

G.V.R._Landman

 

 

 

After graduating in 1983 from the University of Pretoria in mining engineering,
Gys worked in the mining division of Iscor. Experience was gained in
coal and iron ore mining, both on surface and underground. Apart from production
supervision, and management, he was involved in mine planning and mechanization projects.
In 1988 he moved from Iscor to the University of the Witwatersrand to lecture in mining
engineering. His researches led to a PhD in Mining Engineering. He lectured and consulted in
the fields of mineral economics, rock breaking, and mine design. Gys joined the explosives company,
AEL, in 1994 as technical services manager, managing the technical group, Blast Consult.
He moved to sales and marketing as business manager for underground mining, concentrating
on the narrow reef gold and platinum sectors.  He introduced paid service concepts such as value
added blasting and successfully introduced performance related business contracts in this sector.
Gys joined the board of AEL in the late nineties and in 2000 became executive director markets
of AEL. His role included all markets and business operations in  South Africa and the African
continent. At the beginning of 2007 Gys was appointed as the chief executive officer of DetNet,
a joint venture company between AECI Ltd and Dyno Nobel Ltd. DetNet designs and supplies
leading edge electronic initiation systems used worldwide by global mining houses.

 

SAIMM Advert button072017inner

SAIMM on twitter

Other mining news

Mining Weekly | Africa

The latest mining world news and project information from Africa.
  • NUM declares dispute with MCSA, Solidarity to continue gold wage negotiations
    The National Union of Mineworkers (NUM) on Tuesday declared a wage dispute with the Minerals Council South Africa (MCSA), after the MCSA on Tuesday presented a conditional revised offer, subject to trade unions removing the other claims from the table. The dispute comes amid the gold producers having tabled increase offers ranging from R675 for category four to eight, as well as for surface and underground workers, and 5% for artisans, miners and officials.
  • South Africa's new coal-fired plants must have emissions technology
    South Africa's first privately built coal-fired power plants must have the latest technology to reduce harmful emissions, the energy minister said on Tuesday, as a wave of court challenges threaten to derail the projects. Environmental activists have taken legal action against the new Thabametsi and Khanyisa coal-fired projects and are also lobbying banks and developers against investing in them.
  • Seriti’s Teke awarded Brigadier Stokes Memorial Award
    The Southern African Institute of Mining and Metallurgy has awarded coal producer Seriti Resources CEO Mike Teke with a Brigadier Stokes Memorial Award for his contribution to the mining industry and his leadership role in society. The platinum medal presented to Teke last week by Seriti’s outgoing president Professor Sehliselo Ndlovu is considered the highest honour to be bestowed by the mining and metallurgical sector.