Aury Africa thinks coal-plant operators can get more out of their operations by taking a closer look at their screening and vibrating equipment, and machine and product specifications.

The company says it can advise coal-plant operators on the correct screen size to maximise operational efficiency, coupled with comprehensive aftermarket support to assist with all proactive maintenance requirements.

While the mechanical principles of vibrating screens are well understood, there are numerous variables that need to be taken into account, especially with diverse applications such as dewatering.

Aury Africa said: “Perhaps the most important criteria is robustness, where local manufacture is important in guaranteeing the best quality and longest service life possible, especially for the large-tonnage outputs in the coal-mining industry, in particular.”

Aury Africa Business Development Manager George Sturgeon points out that vibrating-screen aperture sizes need to be calibrated carefully depending on the type of raw coal being processed. This is especially important for coal being supplied to electricity utility Eskom, for example, which has specific quality standards for power-generation purposes.

The manufacturer produces a range of vibrating screens for the coal and minerals-processing industries. Banana vibrating screens are available in single- and double-deck configuration, from 1.8 m x 4.8 m up to 4.8 m wide and 8.5 m long.

Horizontal vibrating screens are available in single- and double-deck configuration, from 1.2 m x 2.4 m up to 4.3 m wide and 8.5 m long. High-frequency vibrating screens are available from 0.9 m x 1.8 m up to 2.4 m x 3.7 m.

Circular motion vibrating screens are available in single- and double-deck configuration, from 1.8 m x 3 m up to 3 m x 6.1 m. Flip flop vibrating screens are available in single-, double- or triple-deck configuration, from 1.5 m wide up to 12 m long.

The company is also able to supply a range of exciters to fit most OEM-screen types. Available consumable products include inter-tank/inter-stage cylinder screens for classification, sieve bends and static panels for separation, and centrifuge baskets.

Aury Africa Director Sydney Parkhouse said: “The fact that we can access technical expertise from our international group is a major advantage for our customers, as we have extensive experience coupled with expertise, due to having worked with vibrating equipment in the mining industry for many years.”

The company can also provide bespoke solutions, in addition to having a standard equipment range.

“We have an in-house design capability, and can even undertake research and development in order to be able to cater for specific requirements and applications,” Parkhouse said.