EREMA presents new filter discharge control system at NPE

At NPE 2024, EREMA’s POWERFIL presented its new control system, DischargePro, for the EREMA laser filter that reacts automatically to fluctuations during the recycling process, improving process stability over the entire operating period.

Christian Sommer, Application Sales Manager at EREMA, will be presenting the new DischargePro laser filter control system at the NPE.

The new laser filter control system significantly increases the level of automation by automatically compensating for fluctuations in the input material. It automatically determines the optimum process setpoints and ensures that these are maintained during the whole operating period of the laser filter.

By adjusting the speed of the scraper disc and the discharge screw according to demand, DischargePro ensures the melt thickens uniformly during filtration, which is crucial for a consistent and cost effective process.

The discharge control system can also react to specific disruptive factors, such as:

• Contamination peaks: DischargePro automatically adjusts the speed of the scraper star, returning it to the setpoint speed as soon as the contamination peak has been discharged.

• Reduced throughput: DischargePro detects significant changes in throughput and automatically adjusts the discharge rate so that thickening remains consistent during filtration. It also helps achieve up to 50% lower melt losses.

• Increased viscosity: As soon as the melt has a higher viscosity and creates a higher pressure drop across the filter screen, DischargePro automatically adjusts the setpoint value to ensure a consistent discharge rate.

Innovation in filtration technology

Another of EREMA's innovations in filtration technology is the new 2/406 size of laser filter. Compared to the 2/356 laser filter, it has a 50% larger screen area. With a larger surface area, EREMA enables the filtration of plastic melt at a much higher rate, which is leads to higher throughput.