Modern Quarrying Q3 2019

Bell Equipment’s Finlay scalping screens take run of mine (ROM) and feed sizes of up to 1 000 mm.

Pilot Crushtec International’s range of the Metso mobile screening equipment comes standard with the Metso Extended Protection Services, which offers clients (and in turn their customers) additional peace of mind in terms of equipment reliability.

KEY TAKEAWAYS

Screening media has a larger effect than the type of screen when size and shape of a product are major considerations

If the size requirements are very stringent with a very narrow tolerance for deviation, then a horizontal screen would typically provide a much more accurate cut (separation) than an inclined screen

type of screen you need, especially given the fact that screening quality in aggregate production is mainly based on size and shape. According to Tyron Ravenscroft, Finlay Product Manager at Bell Equipment, the South African OEM offers four types of Finlay screens. The first is heavy duty scalping screens used for primary screening, which sometimes takes place before crushing. “Our Terex Finlay scalping screens take run of mine (ROM) and feed sizes of up to 1 000 mm. They push high production for the primary separation of material and can be used to remove unwanted fines in ROM when producing aggregates,” says Ravenscroft. He adds that incline screens are used for secondary and tertiary screening with the primary func- tion being to produce aggregate of

Dependent on the final specifications, screening below 3 mm is often performed with the general-purpose inclined screen using media such as piano wire

While screening in a wet or dry configuration is available on most screen types, the cut size will make a difference on whether you would opt for a wet inclined or wet horizontal screen, as well as the type of media

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QUARTER 3 - 2019 MODERN QUARRYING