Capital Equipment News October 2023

woven wire has been the traditional go-to for its high open area and inexpensive cost, it has a short wear life relative to the options previously discussed. “High-vibration wire screens are more efficient and provide a compromise between the wear life of synthetic and woven wire media,” says Bräunling. The wires vibrate independently, amplifying the screening process and increasing throughput by as much as 40%. Plus, the blinding and pegging issues suffered by synthetic and even traditional woven wire media are significantly reduced. High-vibration wire screens are often the optimal choice for producers searching for ways to improve their production efficiency and output. Correct installation Proper screen media installation can ensure efficient and safe operation. Before starting the installation, the vibrating screen should be inspected. Maintenance technicians should examine the machine frame for cracks, loose bolts and broken welds and check for worn crown bars, weak or broken leaf springs and bent clamping rails. Any issues discovered should be addressed before installing the new screen media. “Technicians handling the screen media changeout should review the manufacturer’s instructions and ensure the panel is the proper size before starting the process. With each new set of screens, the crown bar rubber should be replaced. If not, it may not sit properly on the crown bar, which can cause the cloth to chatter and eventually break,” says Bräunling. When working with tensioned screen media, the number one priority is proper screen tensioning. Maintenance technicians

Synthetic media, such as rubber or polyurethane, offers long wear life but can have performance issues.

High-vibration wire screens can increase screening efficiency by as much as 40% and reduce blinding and pegging issues.

Proper screen media installation is crucial for efficient and safe operation, including checking for cracks, loose bolts, and worn components.

Vibration analysis sensors can identify and prevent equipment issues, helping mines and quarries fine-tune their vibrating screens.

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with blinding and pegging. This tradeoff might lead some producers concerned with maximising productivity to search elsewhere for their screen media solutions,” he says. Some of the most durable options for primary decks are perforated steel plates and heavy-duty rubber. Steel plates are desirable for applications that require durable media and high open area. The heavier media can make maintenance and operation more

challenging, however. Rubber media can likewise provide large openings but may be limited in open area and can suffer from blinding and pegging issues that hamper screening efficiency. Despite their drawbacks, steel plate and rubber media might be the best option for applications with heavy, abrasive material. Wire screens Wire screens are a third option. Though

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