The new control system for the EREMA laser filter improves process stability over the entire operating period because it reacts automatically to fluctuations during the recycling process. Melt loss is reduced by up to 50 percent as a result.
Recycling post consumer input material is characterised by a large number of fluctuations. This is a major challenge for recycling machines, and especially for melt filters. With the EREMA SW RTF® (backflush filter) and the EREMA laser filter, we offer two models of filters in different sizes, designs and performance levels.
The DischargePro control system for the EREMA laser filter significantly increases the level of automation by automatically compensating for fluctuations in the input material. By adjusting the speed of the scraper disc and the discharge screw according to demand, DischargePro ensures the melt thickens uniformly during filtration. This is a crucial parameter for a consistent and cost effective process.
"The DischargePro control system automatically determines the optimum process setpoints and ensures that these are maintained during the whole operating period of the laser filter. This is made possible using fully automatic reinitialisation, which is time and/or event driven. We have been able to achieve up to 50 percent lower melt losses for our customers compared to the previous EREMA laser filter control system.”
Robert Obermayr, Product Group Manager for POWERFIL at EREMA
Up to 50 percent lower melt loss
The innovative discharge control system reacts to specific disruptive factors, such as:
Longer-term changes are also taken into consideration because DischargePro takes the ongoing condition of the filter screen into account. Over the course of the screen's utilization period, its effective surface area decreases, causing the pressure drop to increase even though the input material is still the same. The intelligent control system reacts to this by automatically adjusting the setpoint to continuously ensure the optimum thickening ratio is achieved.
DischargePro is particularly user-friendly. The machine operator no longer needs to readjust the filter, which reduces the personnel time required. Depending on the application and degree of contamination, DischargePro reduces melt loss noticeably. "We have been able to achieve up to 50 percent lower melt losses for our customers compared to the previous EREMA laser filter control system," says Robert Obermayr.
DischargePro control system was honored with the Plastics Recycling Award Europe
In 2024, the DischargePro control system was presented with the Plastics Recycling Award Europe in the “Recycling Machinery Innovation of the Year” category.
