Patent ID: 8092674

Claim:
A traveling band screen machine for mechanically depositing and extracting solid components, solid bodies or solid matter from a stream of liquid flowing in a sluice channel the machine comprising: a plurality of screen panels that form a revolving endless screen band immersing into the stream of liquid in which a plurality of screen panels that are juxtaposed and arranged consecutively in the direction of movement of the endless screen band, both in the downwardly moving section of the endless screen band and in the upwardly moving section of the endless screen band, respectively form a common screen surface in the sluice channel, wherein the direction of flow is from the inside of the endless screen band through the screen panels to the outside of the endless screen band both for the downwardly moving section of the endless screen band and for the upwardly moving section of the endless screen band, a drive means for driving the endless screen band in its direction of movement, and a cleaning means arranged in the upper guidance zone of the endless screen band for cleaning screen panels lifted out of the stream of liquid in a cleaning zone of the traveling band screen machine by means of spray nozzles or compressed air nozzles arranged on the outside of the endless screen band, and a debris collecting drain arranged on the inside of the endless screen band opposite to the spray nozzles or compressed air nozzles to collect debris sprayed off the endless screen band, wherein the traveling band screen machine comprises screen panels that each have a fish lifting channel on their inflow side, which is arranged and constructed such that it is located at the lower end of the upwardly moving screen panels; in the upwardly moving screen panels it respectively forms a collecting recess filled with liquid for aquatic animals found in the respective screen panel, whereby upon movement of the endless screen band with the screen panel, the liquid contained in the collecting recess and aquatic animals therein are lifted out of the stream of liquid in the direction of movement of the endless screen band; and in an upper guidance zone of the endless screen band it is emptied in an emptying zone of the traveling band screen machine into a catch collecting channel by tilting the screen panel and the collecting recess, wherein the cleaning zone is arranged so far behind the emptying zone in the direction of movement of the endless screen band that the collecting recesses are emptied before they reach the cleaning zone, wherein the catch collecting drain is constructed separately from the debris collecting drain, and the upper guidance of the endless screen band comprises two guidance bends arranged at a distance from each other, namely a first upper guidance bend in the emptying zone and a second upper guidance bend in the cleaning zone.