Metso launches new flip-flow GFF screens for wonderful dry screening together with in HPGR circuits

Metso has launched the Metso GFF Sequence™ flip-flow screens, engineered for environment friendly wonderful dry screening of adverse and infrequently moist supplies. The rugged design delivers steady classification in demanding circumstances and allows finer lower sizes required in purposes equivalent to sand manufacturing in aggregates phase and high-pressure grinding rolls (HPGR) primarily based closed circuits in mining phase.

By strengthening the screening stage, Metso says the GFF Sequence helps prospects enhance vitality effectivity, cut back circulating masses and decrease water utilization, enhancing productiveness in wonderful product making and comminution processes.

The improved screening efficiency delivers worth in two key areas. In HPGR and downstream grinding circuits, finer and extra correct classification reduces circulating masses and improves general vitality effectivity. In wonderful combination manufacturing, excessive screening effectivity minimizes cross-contamination, supporting constant product high quality, for instance in sand manufacturing.

The GFF Sequence combines hybrid flip-flow and standard deck expertise with excessive excitation forces to ship exact screening in each dry and moist circumstances. It achieves lower sizes all the way down to 0.5 mm in dry purposes and 0.3 mm in moist purposes, whereas minimising blinding and pegging. In contrast with conventional screening options, this ends in larger effectivity, diminished course of water demand and fewer vitality wasted in downstream grinding, enabling extra environment friendly flowsheet design.

Sensible subject efficiency has been a key design driver. The flip-flow deck’s anti-blinding behaviour reduces unplanned stoppages, whereas simple entry, rugged development and simple serviceability help sooner upkeep, larger availability and a decrease complete price of possession.

Michael Gyberg, Vice President, Screening Gear Options, says: “Our prospects have been asking for a high-performance display screen that may deal with wonderful, troublesome and infrequently moist supplies with out forcing them into moist screening. The GFF flip-flow delivers the finer, extra correct cuts wanted to help HPGRs and the general comminution course of, making the display screen a real enabler of circuit efficiency.”

Past mining and aggregates, large-scale wonderful dry screening additionally opens new alternatives in purposes equivalent to biomass, fertilisers, development waste recycling and industrial minerals.

Classification performs a essential function in HPGR flowsheets, influencing vitality consumption, circulating masses and productiveness. The GFF Sequence widens the technical envelope for wonderful lower sizes and throughput, enabling extra correct classification forward of downstream grinding. The ensuing finer particle measurement distribution improves the effectivity of the whole circuit.

Stefan Sakendorf, Director, HRC merchandise, Metso, provides: “The a lot finer display screen cuts achieved with flip-flow expertise are a serious benefit for future HPGR circuits. Extra correct classification permits a larger share of the workload to be dealt with by energy-efficient HPGRs and strongly helps the implementation of extremely environment friendly HRC™e-Vertimill® circuits.”

The GFF Sequence additional expands Metso’s screening portfolio and strengthens its end-to-end comminution providing. Following the introduction of the Grande Sequence screens in 2025, Metso now presents fit-for-purpose options starting from coarse, high-capacity purposes to demanding wonderful dry screening.

Mixed with Metso’s screening media, lifecycle companies, HRC™e HPGRs, grinding mills and digital instruments, the GFF Sequence the corporate says positions Metso as a full flowsheet companion for patrons searching for larger productiveness, decrease vitality consumption and diminished water dependency.