Operating machine

An operating machine (1) for continuously draining a liquid phase (L) from wet material (MU);

• said machine comprising a frame (10) extending along a rectilinear direction (D) oriented in a determined way between a loading station (30) of said wet material (MU) and an unloading station (40) of drained material (MD) containing dry matter;
• said loading station (30) and said unloading station (40) being connected by an intermediate operating station (50);
• drainage means (60) of said wet material (MU) being associated with said operating station (50) to progressively drain said material up to said unloading station;
• said drainage means (60) comprising a drainage duct (62) carried by said frame (10) and extending along said direction (D) between said loading station (30) and said unloading station (40);
• said drainage means (60) comprising a first auger (64) and a second auger (64′) carried by said frame (10) inside said drainage duct (62) in a rotating manner;
• a coefficient of compression associated with said drainage means (60) having a variable value proceeding from said loading station (30) to said unloading station (40) according to a graph that can comprise, individually or in combination, an increasing or decreasing linear section, a downward facing concave section, an upward facing concave section, at least one inflection point on the basis of said wet material (MU) to be treated;
• characterised in that said drainage means (60) comprise a concentrating member (120) (120′) of the drainage rigidly carried by said frame (10) facing the said unloading station (40) and shaped to determine locally a specific value of the concentration of dry matter contained in the drained material (MD) fed to said unloading station (40).