Patent ID: 6905528
Filing Date: 2005-06-14
Classification: D01G

Abstract:
1. An arrangement used for filtering out conveying air when supplying fiber material to a processing machine, the arrangement comprising: an essentially vertical filling chute for the fiber material, the chute having an upper intake opening and a lower exit opening; a device with pneumatic fiber feed at the upper intake opening; a floccule-forming device at the lower exit opening comprising a system of draw-in rolls and a fast-rotating opening roll; the chute including at least one air-permeable surface for filtering out the fiber material from the conveying air; an evacuating device for evacuating the filtered out conveying air; and an exhaust air device coupled to the evacuating device and having an air stream regulator which is connected to a control and regulating device, wherein a first partial airstream of the filtered out conveying air stream is guided along the opening roll, and second partial air stream of the filtered out conveying air is guided into the exhaust air device.