Steel converter double rotary duct connector - where two stationary concentric ducts are bolted to bearing permitting rotation of two other concentric ducts connected to converter

摘要

A fluid(5) is fed through a stationary duct(2), which is surrounded by a ring chamber(6) with an inlet(8) for a second fluid(7). Duct(2) ends in a flange(4) which is bolted to the outer race of a ball bearing(12). The inner race of bearing(12) is fixed to the end of a second ring chamber(16) mounted on an outlet duct(14), which is coaxial with duct(2), but is free to rotate. Flange(4) has a circular row of holes(9) via which fluid(7) flows into chamber(16), whereas fluid(5) flows through duct(14). The connector is used e.g. on a steelworks converter, for the supply of two separate fluids(5,7) from stationary ducts to ducts which can rotate via bearing(12).