Modern Quarrying October-November 2016

ON THE COVER

In the event that excess vibration occurs, the vibration switch will shut down the crusher to protect it from possible damage. A further safety feature is the micro switch incorporated into the lid lift. This prevents the crusher from starting up during inspection or maintenance. Weir Minerals is known for its design, engineering and manufacturing capa- bilities, and Singleton says this plays an important role in ensuring the crushing machines provide reliable performance while reducing overall cost of ownership. “By partnering with customers from design through to final decommission- ing, our skilled personnel are able to devise the best crushing solution to meet customer requirements including the production of a quality product for the quarry owner,” Singleton concludes.

Steel-on-steel configurations are suit- able for crushing non-abrasive materials in secondary and tertiary crushing appli- cations with larger feed sizes, while a rock-on-rock configuration is best where additional fines or shape of material are required. Rock-on-steel configurations are used for crushing low abrasive materials where a higher rotor speed is necessary to achieve additional fines production. Fully customisable to meet individual operation requirements, the crushers can operate in either open or closed circuits, dependent on the type of performance required. An independent modular oil lubri- cation system with built-in heating and cooling ensures optimum bearing lubri- cation. A flowmeter and temperature sen- sors with interlock safety shut switches provides protection for the bearings. An integral vibration protection sys- tem that includes a maintenance alarm alerts personnel to potential problems.

Featuring advanced open table designs, multi-port rotors and a larger bearing capacity than most other VSI crushers in the industry, the Trio VSI crusher is capable of achieving high throughput while offering reliable and cost-efficient performance. The large receiving hopper facilitates easier feed conveyor placement while the adjustable feed diverter ensures even feed distribution into the crusher. An important feature is the externally adjust- able feed tube which allows adjustment without opening the crusher. The conve- nient inspection door mounted in the lid allows safe and easy inspection. Sukdhoe says that the Trio VSI crusher is available with three different inter- changeable chamber configurations. “This allows for maximum application flexibility and the Trio VSI crushers have consistently demonstrated their ability to produce high-quality cubical aggregates,” he says.

www.minerals.weir A customised Trio modular crushing and conveyor system.

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MODERN QUARRYING

October - November 2016