HUBER Multi-Rake Bar Screen RakeMax® V High-performance chain screen for water withdrawal from surface water
- Very high screenings removal capacity and separation efficiency with low head loss
- Simple and robust design adapted to project-specific requirements
- Variable cleaning intervals and speeds
- Various design options enable use for coarse and fine screening of large dirt loads
The powerful Multi-Rake Bar Screen RakeMax® V cleans surface water even with high dirt loads
Due to the increasing pollution of surface water, operators of water withdrawal systems are faced with the challenge of effectively removing contaminants through mechanical cleaning. The extent of surface water withdrawal from rivers and seas is also growing, for example due to increasing drinking water production via desalination plants, the use of renewable heat from river water, its use for cooling purposes, or for the generation of hydrogen. The correct choice of the mechanical screens determines the stability of subsequent process steps and thus the economic efficiency and safety of the entire plant.
Design and Function of the HUBER Multi-Rake Bar Screen RakeMax® V
Our decades of experience in planning, project management and after-sales service enable us to perfect the Multi-Rake Bar Screen RakeMax® V to suit any customer needs. The screen offers excellent versatility for use in a wide range of water qualities and dirt loads. Combined with modern engineering and manufacturing methods, this guarantees our customers a long service life of the RakeMax® V with high reliability and low maintenance.
The HUBER Multi-Rake Bar Screen RakeMax® V is a coarse screen with front flow in the channel as the first stage for screening surface water. The RakeMax® V can also be used as a fine screen.
As the water to be screened flows through the bar rack, the impurities are reliably retained by the bars. The retained material accumulates on the bar rack, crea-ting an additional filter effect, which further increases the screen’s separation efficiency. The cleaning rakes, which are attached to the chain system, are moved continuously upwards through the bars by the rake drive and transport the dirt load out of the channel. The separated material is discharged into a container or downstream transport or dewatering unit via a discharge mechanism in the upper part of the screen. The cleaning elements attached to the chain system can easily be adjusted to different requirements, enable project-specific design of the screening discharge capacity. This is especially favourable for high solids loads.
The discharge height of the RakeMax® V above the ground is very low. It is designed specifically for the project depending on the installation height of the planned screenings discharge. The design ensures that no impurities fall back into the incoming sewer.
The RakeMax® V can be operated manually, with time control or automatically with water level differential measurement. An integrated overload protection device ensures that the screen drive switches off in the event of a blockage.
The HUBER Multi-Rake Bar Screen RakeMax® V is ideally suited for stable surface water withdrawal from rivers and seas requirements and reliably removes high dirt loads from the water. Thanks to innovative solutions, the RakeMax® V can also meet special requirements such as the removal of jellyfish and seaweed or efficient water withdrawal without harming fish.
HUBER has supplied numerous machines for new plants and the modernisation of existing plants worldwide. High-quality screening machines ensure smooth water intake and reliably protect downstream systems from damage caused by contamination.
Sizes and process engineering data
- Channel width up to 4 m
- Channel depth up to 25 m
- Installation angle up to 90°
- Bar spacing: 2 – 100 mm
- Flow rates of up to 80,000 m³/h per channel
Numerous machines for new plants and the modernisation of existing plants worldwide
Success stories
Advantages of the HUBER Multi-Rake Bar Screen RakeMax® V
- Throughput – very low headloss with high separation efficiency
- Discharge capacity – short cleaning intervals to increase the machine’s discharge capacity
- Discharge capacity – optionally available with buckets for high quantities of jellyfish or for seaweed
- Installation and assembly – quick and easy installation of the machine in the structure
- Easy maintenance – all maintenance steps can be carried out from the operator level
- Increased corrosion resistance thanks to a suitable selection of materials or corrosion protection systems
- Variable cleaning speed to optimise machine runtimes
- Automatic wiper system – no washing water or brushes required for cleaning
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