Energy from waste

Energy from waste

The Polish company FBSerwis needed a reliable shredder to crush municipal solid waste with particle s greater than 80 mm and process mixtures of plastics. Vecoplan replaced an old machine in the company’s existing line with an energy-efficient VVZ 2500 pre-shredder, which is designed for a throughput of roughly 42 tonnes per hour. Thanks to this system, the customer is now able to shred almost 200,000 tonnes of waste each year, producing high-quality output with particle s below 250 mm.

Does it make sense to dump waste into landfills? This not only harms the environment, it squanders valuable resources and takes up a lot of space. Waste can be put to good uses, for example generating energy and replacing expensive fossil fuels like coal, gas and oil. For cement works and steel mills in particular, this can be a very economical solution. It also enables them to cut back their air pollutants emissions.

“We collect municipal solid waste and use it to make high-quality refuse-derived fuel (RDF),” says Arkadiusz Mężyk, CEO of FBSerwis Kamieńsk, an indirect subsidiary of Budimex. In addition to disposal, processing and collection of waste, FBSerwis Group provides technical maintenance services for buildings and industrial facilities, road maintenance services and modernizes street lighting infrastructure. The municipal installation of FBSerwis Kamieńsk has a processing line for municipal waste with particle s greater than 80 mm and mixtures of plastics, that’s why it searched for a reliable pre-shredder to increase the system’s performance. This led it to Vecoplan AG.

Vecoplan, based in Bad Marienberg in Germany’s Westerwald region, develops systems for shredding, conveying and processing wood, biomass, plastics, paper and domestic & commercial waste. The company employs some 500 people worldwide. “Our tasks include consultancy, planning and finding solutions. We provide integrated project management, including installation, commissioning and comprehensive service,” explains Ireneusz Suszyna, Area Sales Manager of the Polish subsidiary Vecoplan Polska. He was the person responsible for the project.

From delivery to commissioning

Vecoplan installed a VVZ 2500 T pre-shredder in response to the company's needs. “This double-shaft shredder can even process difficult and contaminated materials such as domestic and commercial waste,” says Vecoplan expert Suszyna. “We delivered the system, coordinated the whole project, planned the layout in detail, set up the mechanical and electrical connections and finally commissioned the system.” The biggest challenge? “We had to integrate the pre-shredder into the existing line and remove the old machine. At the same time, we had to avoid downtimes.” The installation had to go quickly.

Vecoplan’s application engineers matched the system to the customer’s input and output requirements by installing suitable rotors and blades and selecting the right screen. They fine-tuned these components according to the FBSerwis’ needs by means of numerous tests at Vecoplan’s in-house technical centre. At all times they were in touch with the customer in order to determine the requirements for the optimum particle in the downstream process. The experts selected rotor diameters, cutting geometries, screens and cutting tools to correspond to the mechanical properties, thermal properties and dimensions of the input material and the output requirements.

Vecoplan installed a VVZ 2500 T shredder. This double-shaft shredder efficiently processes even difficult and contaminated materials such as domestic waste.