Tuyer device for introducing gas media under a liquid metal level

Abstract

The invention relates to producing and processing liquid metal in metallurgy. The inventive tuyer device comprises a well block with a built-in shell, coaxial metal pipes arranged inside the shell, a central working channel and an annular channel encompassing the working channel on the side of a device introducible into the liquid metal, wherein the channels are separately connected to ducts for supplying gas media to the metal and the coaxial metal pipes consist of two interconnected sections of different diameters, the second section having the larger diameter, being connected to the ducts for separately supplying gas media to the working channels of the first section, being provided with an extra pipe and having the annular channels only, the gaps of which are in the form of capillaries for the liquid metal, the internal section of the central pipe being closed on both ends and filled with a refractory material.

1 . A tuyer device for introducing gas media under a liquid metal level comprising a well block from a refractory material with a built-in shell, coaxial metal pipes arranged inside the shell, having on the side of a device introducible into the liquid metal, at least one central working channel and at least one annular working channel, the working channels are separately connected to ducts for supplying gas media to the metal, wherein the coaxial metal pipes along their length consist of two interconnected sections of different diameters, the first section having the smaller diameter and designed for the specified supplying gas media to liquid metal, the second section having the larger diameter, being connected to the ducts for separately supplying gas media to the working channels of the first section, being provided with an extra pipe and having the annular channels only and the internal pipe of the section being closed on both ends and filled with a refractory material, the gaps of annular working channels of this tuyer section are in the form of capillaries for the liquid metal. 
     
     
         2 . The tuyer device according to  claim 1 , wherein the annular working channels of the second section of the coaxial metal pipes in transition areas into working channels of the first section are outlined with straight taper surfaces with smooth transition at end points, while at least in the transition area the end part of the internal pipe passes into a taper rod located coaxially in the central working channel of the first section. 
     
     
         3 . The tuyer device according to  claim 1 , wherein the annular channels of the second section of the coaxial metal pipes in transition areas into the working channels of the first section have spherical surface with smooth transition at end points, while at least in the transition area the end part of the internal pipe passes into the taper rod, located coaxially in the central working channel of the first section. 
     
     
         4 . The tuyer device according to  claim 1 , wherein the annular working channels in the second section of the shell are calibrated being located between pipes of the calibration spring with initial diameter lower than the outside diameter of the pipe, that this spring is placed on. 
     
     
         5 . The tuyer device according to  claim 1 , wherein the internal pipe of the second section of the coaxial metal pipes is made with calibration ribs on the outside diameter, including over the transition area of the second section of the coaxial pipes into the first section. 
     
     
         6 . The tuyer device according to  claim 1 , wherein the pipes in the second section of the shell have circumferential weld.