Instrumentation for Botswana diamond mine
Jan 2000
Flow Measurement & Control
Endress & Hauser -
Endress+Hauser has supplied a number of instruments to the Orapa 2000 project at the Orapa Mine in Botswana. The De Beers project is the biggest of its kind with a total value of more than R2 billion and extends the existing Orapa open-pit diamond mine to double its present size with an output of 12 million carats per year.
Over 140 HART Smart Promag 30 and 35 electromagnetic flowmeters were installed on water and slurry systems throughout the plant, which includes the automated recovery and extraction process utilising X-ray technology to produce a concentrate with a high diamond content. The instruments are required to operate under harsh environmental and process conditions including ambient temperatures from 0-50°C and humidity up to 90%. Promags were also installed on the primary and secondary scrubbing and screening systems, the well fields, slimes waste disposal and water reticulation systems.
In addition to water balancing applications, the electromagnetic flowmeters are used for the measurement of abrasive slurries with a density of 2,6 and a high flow rate from 2m/s to 3m/s. The nature of the slurry called for the units to be equipped with ultra soft rubber liners. The plant's jet sump was fitted with Magphant flow switches while more than 70 HART-based PMC 731 pressure transmitters were installed on the jet sump pumps as well as the dense media separation (DMS) system, water services, diamond recovery plant and ultraceps.
More than 60 Omnigrad TMD 833 temperature transmitters are used to monitor the temperature of critical bearings in the scrubber plant. The units are fully programmable incorporating HART technology for added reliability and easy parameterisation using a HART configurator.
Says Abri de Wet, Chief C&I Engineer, Debswana Projects, "At this stage we are very pleased that all of the Endress+Hauser instrumentation is meeting our expectations."
Endress+Hauser has a track record with Anglo American Corporation that goes back more than 10 years. Its products have been used previously for Orapa's No. 1 Plant as well as for Letlhakane and Jwaneng diamond mines and have established a reputation for reliability, backed by strong service and support.
Endress+Hauser
(011) 444 1386
Further reading:
Mastering inline LNG flow monitoring
Flow Measurement & Control
[Sponsored] As global demand for cleaner, more flexible energy sources continues to rise, liquefied natural gas (LNG) stands at the forefront of the energy transition. Engineered for excellence in cryogenic environments, the Anton Paar L-Cor 8000 flowmeter redefines inline LNG flow monitoring.
Read more...
Magnetic-inductive flowmeter with effective compact electronics and IO-link
Instrotech
Flow Measurement & Control
KOBOLD has combined two of its proven components, the successful type MIK magnetic-inductive flow meter and the popular U-PACE compact electronics, creating an exciting new compact flow instrument at the best price.
Read more...
Dosing chlorine gas safely and sustainably
Flow Measurement & Control
Chlorine gas is central to a range of industrial processes but is highly dangerous. The solution is the deployment of a system solution for chlorination from Lutz-Jesco.
Read more...
Oil monitoring solution drives performance gains for paper mill
SKF South Africa
Flow Measurement & Control
By integrating real-time monitoring with precise flow control, SKF’s Flowline oil monitor meters have significantly improved the flow rate control and performance of oil circulation lubrication systems installed on a paper mill.
Read more...
Flow measurement in mobile applications
ifm - South Africa
Flow Measurement & Control
The SU Puresonic Mobile ultrasonic sensor from ifm is characterised by its displayless design and high temperature resistance. It is ideal for mobile applications and processes with permanent media temperatures of up to 120°C.
Read more...
Optimising water quality in a building cooling system
ifm - South Africa
Flow Measurement & Control
A leading company in industrial water management has installed water treatment systems that not only optimise water quality but also help customers to improve their processes, thanks to the new insights and actions that can be generated based on the process data collected.
Read more...
New uncompromisingly simple flowmeter line for processes
Endress+Hauser South Africa
Flow Measurement & Control
The demand for simplicity in commissioning, operation and maintenance in industrial process plants has increased significantly in recent years. The new Proline 10 range of flowmeters from Endress+Hauser meets this requirement without compromise, because simplicity is the top priority.
Read more...
Rotork joins Rockwell Automation’s Technology Partner Programme
Flow Measurement & Control
Rotork has entered into the Rockwell Automation Technology Partner Programme, marking a significant step in expanding the company’s presence within the industrial automation landscape.
Read more...
Loop signature 29: Averaging or surge level control
Editor's Choice Flow Measurement & Control
There are many processes where it is undesirable for the load to suddenly change quickly, for example in the paper industry. Examples of level control have involved reasonably fast tuning. An example of a level loop tuned this way and responding to a step change in setpoint is given.
Read more...
A reliable water supply: The make or break in building metros across South Africa
VEGA Controls SA
Flow Measurement & Control
South Africa’s urban centres encounter substantial water supply challenges. Maintaining stable water infrastructure is essential for the health, economic vitality and well-being of communities.
Read more...
printer friendly version