Multotec Manufacturing’s screening test rig helps to prove screen panel product efficiency at no risk to customer operations.
The screening test rig – located at Multotec’s Spartan headquarters – delivers two primary benefits, according to Chris Oldewage, technology manager at Multotec Manufacturing. Firstly, it facilitates the in-house development process of screening media products. Secondly, it allows screening media to be tested against customer requirements to ensure the right solution is delivered.
“The ongoing research and development behind our screening media products gives the industry opportunities to optimise efficiencies and recoveries,” says Oldewage. “However, changing anything on a plant brings risk of unexpected downtime. Our screening test rig can considerably reduce operational risks by proving any changes before they are implemented on site.”
In the controlled environment provided by the screening test rig, customers can view the actual performance of screening media products with material from their mining operations. Multotec’s testing protocols generate the data necessary for detailed process analysis which facilitates well-informed subsequent decisions.
The screening rig is made up of three test platforms: a vibrating screen, a sieve bend and a static drain screen platform. The vibrating screen can conduct classification tests, wet and dry dewatering tests, product development tests and plant screen simulations. The static drain screen and sieve bend screening test platforms are wet classification, drainage and dewatering tests.
Multotec process engineer PJ Pieters describes how accurate scaling of a customer’s on-mine process is vital for achieving representative and relevant test results. “We gather a range of key data from customers on our test work questionnaire,” says Pieters. “This includes their material tonnages, volumes of water, screen sizes in operation and aperture sizes on panels among other information.”
This ensures that sample sizes are representative and that the tests accurately reflect what is taking place in the mine’s processes. Tests are conducted in triplicate runs to ensure a sound scientific basis for the findings.
Oldewage highlights the valuable role that the screening test rig plays in Multotec’s collaboration with customers to lower cost per ton and in achieving mineral processing goals. “By removing the risk that mines face in trying new solutions, our testing capability smooths the way for valuable innovation to improve screening performance,” he says.
The screening test facility at Multotec also includes a small Lucotec screen and a small wedgewire trommel screen, both for small-scale verification test work.
