Apparatus in a spinning room preparation, ginning or like installation for the detection and separation of foreign matter in or between fibre material.

摘要

An apparatus in a spinning room preparation, ginning or like installation for the detection and separation of foreign matter in or between fibre material, having a fibre transport duct 2 along which there are arranged a sensor system 7 for the detection of foreign matter and a separation device 13 having at least one compressed-air nozzle effective transversely with respect to the fibre transport duct, the fibre transport duct having opposite the compressed-air nozzle a first opening 17 which leads into a separation chamber 15 connected to .a waste-discharge device 18, the blast air from the at least one compressed-air nozzle is suppliable in a closed system from the separation chamber through a further opening 19 to the conveying air current again. In order to allow reliable segregation of the foreign matter from the fibre material stream, without adversely affecting the air balance, in a structurally simple way, the separation chamber 15 is integrally connected to the fibre transport duct 2 and the blast air, before being returned to the conveying air current, passes through a filter device 20.