Ballistic separator DESCRIPTION FUNCTION Separates the stream of material by size, shape and density. Concentrates certain groups of materials to simplify the subsequent separation. Ballistic separators in sorting plants carry out the main task of dividing the various treatment streams. They are obtained in three currents: • Fine material fraction. Constitutes the filtered current from the ballistic separator with a high fine material content. • Fraction of rolling material, formed by material with higher apparent density and round or quadrangular shapes (mainly liquid containers). Mainly comprised of bottles, tins, beverage cartons and other 3D material. • Light flat material current, mainly comprised of plastic film sheets, P/C and other 2D materials. The ballistic separators of the sorting plants can be considered to perform the main function of dividing the different treatment streams. In general, a ballistic separator installed in a package sorting plant consists of the following elements: • Set of perforated paddles constituting a ramp. • One or more crankshafts to transmit the movement to the ramps. • Frame or assembly. • Device for controlling the ramp inclination. This device can be actuated hydraulically or manually. • Fans on the bottom providing a continuous blowing which helps improve the separation between rolling and light flat materials. Not all the ballistic separator models have these fans. • They can optionally include an upper guard to prevent material from scattering. • Collection chutes for the outlet streams. The oscillating movement caused by the crankshaft means that materials with a greater apparent density and more rounded shapes fall towards the bottom of the planes, while materials with flat shapes rise towards the top. At the same time, fine materials with a smaller size than the mesh perforations pass through the mesh and are considered as rejected waste from the ballistic classification. The fractions obtained are collected in chutes to be guided to the corresponding conveyors.
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