Coperion has successfully proven the advantages of the innovative conveying technology FLUIDLIFT ecoblue®. Starting point was an aging LDPE production line of sensitive grade pellets with high product quality requirements which was suffering from typical wear after a production life of approximately 10 years. The product quality targets could still be met, however, the waste generated and removed at the pellet cleaning unit was significant and resulted in remarkable lost revenue. The objective of an improvement project was to reduce the waste by retrofitting the innovative conveying technology FLUIDLIFT ecoblue®.
Retrofitting the LDPE plant with FLUIDLIFT ecoblue® took only a few days. Immediately after commissioning, the success could already be monitored at the elutriator unit of the conveying system. The amount of waste material was reduced considerably, in turn, creating a higher amount of quality end product. Furthermore, the conveying pressure within the pneumatic conveying line was reduced by almost 20% which results in energy savings or offers the potential to increase production capacity with the same existing pneumatic conveying line.
The LDPE plant ran automatically in FLUIDLIFT ecoblue® mode for six months, resulting in a total waste reduction of 67% and continued to maintain the high product quality at the same time. Hence, the benefit is that the material formerly discarded at the elutriator outlet is now saved as resource and the cost of producing this product is also saved. These achievements are especially remarkable because only one out of three parts of the conveying system was equipped with FLUIDLIFT ecoblue®.