SYSTEM FOR LIQUID AERATION IN A TANK

摘要

PCT No. PCT/DE89/00388 Sec. 371 Date Jul. 31, 1990 Sec. 102(e) Date Jul. 31, 1990 PCT Filed Jun. 15, 1989 PCT Pub. No. WO90/08742 PCT Pub. Date Aug. 9, 1990.One or more hoses (10) belong to the ventilation system which through a perforation are constructed at least partially as ventilation hose (60). Each of the hoses is permanently connected with a number of holding devices distributed over its length, which hold the hose (10) from below. The holding devices run in a guide rail (14). The hose (10) is drawn into the empty or liquid-filled basin (10) with a traction device along the guide rail (14) which introduces the tractive force onto the body of the hose and holds it there without prestress.