INSTRUCTION FOR THE INTRODUCTION OF MEDIA IN A SHELL AND PROCEDURE FOR THE USE OF THIS INSTRUCTION

摘要

PCT No. PCT/EP92/02520 Sec. 371 Date Mar. 2, 1994 Sec. 102(e) Date Mar. 2, 1994 PCT Filed Nov. 3, 1992 PCT Pub. No. WO93/09255 PCT Pub. Date May 13, 1993.To increase the service life of a tuyere arrangement for the introduction of agents into a molten bath, comprising an apertured block (3) refractory material which can be fitted into the wall (1) of a vessel (12) and which includes a cylindrical body (4) with an inserted tuyere tube (6,7), the cylindrical (4) is axially displaceably fitted in the apertured block (3) the tuyere tip which is consumed is replaced by a follow-up movement of the cylindrical body (4).