Separating device

A separating device (1) for fractionally separating different material out of a feed-material mixture (2), comprising:

• a flow channel (3), which has a slope, extends in parallel with the direction of gravity in its main longitudinal extension direction (Z), and comprises an inner chamber (35), a first end region and a second end region opposite the first end region;
• a material inlet region (34) arranged between the first end region and the second end region and intended for feeding the feed-material mixture (2) into the inner chamber (35) of the flow channel (3);
• an outlet (36), which is arranged above the material inlet region (2) in the first end region of the flow channel (3) and through which an air stream (5), containing a lightweight material, can exit the flow channel (3);
• at least one conveying means (10, 42), which conveys air through the flow channel (3);
• and
• a cross-flow device (4), which is connected to the second end region of the flow channel (3) in flow communication with the flow channel (3) and has a separation chamber (44, 45, 49) and an air intake (41), which leads into said chamber and through which the cross-flow device (4) can introduce air into the separation chamber (44, 45, 49) in a flow direction extending at an angle to the main longitudinal extension direction (Z) of the flow channel (3), wherein the separation chamber (44, 45, 49) has at least one first separation region (44) positioned adjacent to the air intake (41), and a second separation region (45) positioned further away from the air intake (41) in comparison with the first separation region, wherein a separation apparatus (46) formed as a baffle element is arranged between the first and the second separation region (44, 45).