Haver & Boecker Niagara custom-engineers the world's lergest vibrating grizzly screen. Manufactured with Hardox® steel perforated plates and grizzly bars for a large Brazilian iron ore operation, the Niagara XL-Class vibrating grizzly screen boasts a capacity of 8,000 tph and a cut size of 200 mm. As the biggest exciter-driven machine in the industry, the XL-Class provides operation with high-capacity screening while maximising uptime and production. Combined with the grizzly technology, the XL-Class can remove large stones, relieving pressure on the primary crusher.
At 120 tons, the machine’s size required a modular approach, so Haver & Boecker Niagara engineered the XL-Class vibrating grizzly screen as two bodies. With this customisation, the 1.3-meter particles did not allow for the normal placement of exciters. This resulted in adjusting the design to place three exciters beneath each body rather than the standard overhead location. Effectively screening material top sizes of 1.3 meters, the XL-Class grizzly vibrating screen removes oversized materials to relieve the crusher.
“We recognise that no two operations are the same, which is why Haver & Boecker Niagara takes the time to understand each of our customers and their needs for every new quarry or mine location,” said Denilson Moreno, sales manager at Haver & Boecker Niagara.
“We have worked with this customer for many years, but as they began production at the largest iron ore operation in the world, we realised that to maximise output truly, it would require a durable and extremely efficient primary screen. That led us to engineer and manufacture this XL-Class, which is now the largest vibrating grizzly screen on the market.”
Haver & Boecker Niagara listened to the operation’s challenges and employed their signature NIAflow plant simulation software to address them. The software analysed the proposed plans, processes, goals and material for plant optimisation, providing information to the customer and Haver & Boecker Niagara to design and custom engineer the one-deck vibrating grizzly screen.
To maximize uptime, the customer opted to equip the XL-Class vibrating grizzly screen with Haver & Boecker Niagara’s signature Pulse condition monitoring (Pulse CM) system. The advanced technology provides the producer with 24/7 access to the health of its vibrating screen. Pulse CM includes up to 20 sensors placed on the bearings and bodies, which continually assess the acceleration of the machine and provide a forecast of the equipment’s dynamic condition in intervals of 48 hours, five days, and four weeks.
