Structure of oxygen passage in steel converter vessel supporting trunnion

摘要

A structure of the oxygen passage in a steel converter supporting trunnion comprises a hollow chamber provided where a trunnion shaft projects from a trunnion ring. In the hollow chamber is inserted a hermetic manifold, to which a horizontal pipe communicating with a rotary joint and a vertical pipe communicating with an oxygen tuyere in the bottom of the converter vessel are welded. Inside the manifold, there is fitted a communicating member containing a bend-like passage through which the horizontal and vertical pipes communicate with each other.