The Independence High Frequency Screen plant from Superior Industries offers maximum control over spec accuracy by combining a wide RPM range with adjustability across each deck section. As a result, processors meet tighter gradations and achieve more efficient fines processing, especially in tertiary crushing stages.
As crushing circuits accelerate and specifications tighten, many plants create more fines than traditional screening equipment can efficiently process. The result is bottlenecks such as excess recirculation, shortened media life and stockpiles that miss specifications.
Superior’s new Independence Screen allows motor adjustments from 3,000rpm to 6,000rpm across each deck section. This fine-tuning of the screening process optimises material separation amid ever-changing deposits. Essentially, it is a plant that adapts to the deposit size, rather than the deposit having to adapt to the plant operation.
The heart of the plant is a multi-slope 183cm x 610cm screen that can increase material throughput. Instead of a single operating speed, each deck is controlled in two sections and can be tuned independently by individual motors controlled by a variable frequency drive. This fine-tuning capability enables operators to “dial in” specifications based upon moisture content and feed size.
The plant features a vibrating feed distribution box that ensures material is evenly spread across the deck from the start, improving media efficiency and reducing buildup. Also, a uniform tensioning system evenly distributes tension across the media, preventing the premature wear and tear common in fine media screens.
Importantly, it has an automated clean-out cycle – a self-cleaning mode that ramps motors to 6,000rpm to clear media blinding without stopping production. This can extend media life while reducing downtime for maintenance.
