The RakeMax® HF is a L-shaped multi-rake bar screen and like the RakeMax® screen belongs to the MAX family of HUBER screens.
This screen features a flat, hydraulically advantageous bottom section that transitions into a steep conveying section. This design combines the proven benefits of the RakeMax®, including reliable solids separation and high screenings discharge capacity, with minimal head loss due to the large effective screen rake surface.
The HUBER RakeMax® HF Multi-Rake Bar Screen is the ‘high flow’ version and further development of the successful HUBER RakeMax® Multi-Rake Bar Screen that is well-proven in thousands of installations.
The RakeMax® HF screen consists of two distinct sections: a flat bottom section that provides a large screening surface and optimal hydraulic conditions, and a steep conveying section that ensures efficient screening in a compact footprint. Material removal begins right at the bar rack, mounted flat to the channel bottom, preventing the accumulation of unwanted material.
The ideal flow conditions and large effective bar rack surface ensure a high hydraulic throughput capacity. The cleaning elements, attached to the chain system, can be easily adjusted to meet varying requirements, offering a highly flexible screenings discharge capacity. This is particularly beneficial for handling high solids loads. Depending on the bar spacing, the bar rack can be designed with either a flow-optimizing bar profile or a non-blocking wedge wire profile.
Both ends of the cleaning elements are connected to drive chains, with each chain powered by a sprocket on a common shaft and a flange-mounted gear motor. At the end of the bar rack cleaning cycle, the cleaning elements are cleaned by a pivoted comb, which effectively discharges the removed screenings into a downstream transport, washing, or disposal unit. The drive unit, which is easy to access and maintain, is installed above the channel. Thanks to the screen’s compact design, its height above the floor is kept very low.
The innovative HUBER Detection System Safety Vision enables the screen to "see" the screenings and reliably identify potentially critical contaminants.
This effective protection mechanism reliably prevents damage to both the screen and downstream equipment, enhancing the availability of the involved machines and improving the overall operational safety of the plant. Additionally, the adaptive operation, based on event detection, ensures that the machine is always utilized optimally, while the runtime of downstream machines is optimized according to the actual demand.
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