The process of selecting and classifying the incoming Urban Solid Waste(including gardening and pruning waste) to the complex is carried out in the pre-treatment warehouse, which has three treatment lines, each with a nominal capacity of 30 tons / hour. Each line has the necessary equipment to be able to carry out the classification and selection in the most effective and efficient way.
The main phases of treatment are:
The material supplied by the “panzer” feeders is introduced into a trommel equipped with bag-opening spikes, with a screening hole of Ø 300 mm
The smaller material goes through a manual glass selection for recovery.
After recovery of the glass, the material is introduced into a double-section screening trommel:
The separated fraction in the second body of the Double Screen is transported to the ballistic separators, where through the combined action of: plane inclination, vibratory movement, air impulsion and screening mesh, the incoming flow is broken down into three output flows, all of them with a very specific destination.
The heavy-rolling fraction separated in the ballistic equipment is transported to the optical sorting equipment, which, through a combination of optical and pneumatic technologies, decomposes the incoming flow into three output flows:
From each of these three lines, a series of common fractions are obtained, which are described below:
The vehicles that transport the waste, discharge directly onto a hopper that feeds the shredder. Once shredded, the waste is conveyed by a carrier belt to one of the two existing containers of 100 m3, equipped with a “moving floor” discharge type, being stored in one of them and dosed through the outlet with a smaller fraction of 80 mm, towards the composting area.
From the waste treatment, a general flow of primary rejection is finally obtained, which is directed to the annexed warehouse for compacting, storage and rejection dispatch.