Recyclables Sorting and Balling Pontedera
ECOFOR SpAPontedera | Pisa - Italy
- System description: Sorting and baling
- Waste processed: Commingled recyclables (paper, plastic and metals)
- Plant capacity: 12 t/hour
The plant is designed for the sorting of dry municipal waste coming from source separation and containing recyclables, such as paper, cardboard, plastic bottles
and metals. A belt feeder, loaded by means of a wheel loader, goes through an inspection room, where bulky objects and waste that cannot be treated are removed. In the case of materials contained in bags, these are opened in this inspection room. The material moves forward on a lifting conveyor that brings it up to the inlet of a two-stage rotary screen, so that waste is separated into three fractions:
• Small size material, consisting of fine materials that are discarded because they are not recoverable;
• Intermediate size material;
• Large size material.
The intermediate size material contains metallic cans, which is why this part goes through a magnetic separator. A conveyor belt takes ferrous metals to a container. Intermediate-size and large-size materials are sent through distinct transport systems to the manual sorting room. Sorting is performed along two parallel conveyor belts.
The preliminary screening is meant to increase the efficiency in manual sorting operations as each one of the conveyors transfers materials with a more uniform
size, thus facilitating the operators’ job. It is also easier to perform negative sorting, i.e. rejects are removed from the conveyors. At the outlet from the sorting room, the materials transported by both sorting belts are unloaded on a reversible conveyor, which can unload the material in a storage area for loose material, or send it to the baler feeder. The baler, which was already in place before the Ecomaster plant was built, produces bales that are handled by a forklift.
The materials separated in the sorting room are dropped by the operators through channels into four bunkers below. From there, they can be taken to the baler by means of wheel loader. To process materials that do not need to be sorted, it is possible to load the baler feeder directly.