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Libroplantasingl

Classification trommel FUNCTION Divides the material stream into two or more categories according to grain size using specific size sieves. This allows the concentration of certain groups of materials to aid their subsequent segregation. It performs the main function of distributing or dividing the different streams of the treatment. In addition, it can also perform the bag opening function as it can include spikes for this purpose. DESCRIPTION It consists of a revolving cylindrical surface arranged in an inclined position, with one or more areas provided with orifices of equal or different size, through which materials of a smaller size can pass. The materials that have not passed through the orifices come out of the cylindrical surface on the side opposite the inlet as sieving rejected waste. This creates two currents: a sieved material current known as the passing current and a nonsieved material rejected waste current known as the overflow. To collect the sieved material and rejected waste streams there are chutes that lead these to other areas of the sorting facility, as well as guards to prevent spillage and projection to the outside. These units comprise the following main parts: • revolving cylinder with a frame that holds and joins the perforated areas or meshes and the areas without orifices on which the cylinder rests, known as blind ferrules. • Support and actuation system for wheels or cylinders provided with electromechanical elements (gear reducers) to drive the rotation of the cylinder. • Support frame in which the drive elements of the revolving surface are integrated. • Static assembly of chutes for collecting passing and overflow materials from the sieve mesh. • Static enveloping assembly to prevent material projections out of the revolving cylinder, leading the projected material to the outside of the passing material collection chutes. It comprises labyrinthine closures between the revolving and static parts to prevent spillage and projections. • Sieving areas and mesh. The mesh is generally made of perforated steel plate, with a high impact and abrasive strength (steel with a high


Libroplantasingl
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