Device for atomizing melts

Abstract

A device for atomizing melts, in particular liquid slags, includes a tundish intended to receive the melts and an atomizer head arranged in or on the outlet opening, A cooling chamber for the atomized melt is connected to the atomizer head. The atomizer head is designed as a hot cyclone running into the cooling chamber. Burners and/or propellant gas nozzles are connected to the hot cyclone.

What I claim is:  
     
         1 . In a device for atomizing a melt, such as a liquid slag, of the type including 
 a melt tundish having an outlet opening and intended to receive said melt,    an atomizer head arranged in or on said outlet opening of said melt tundish and intended to produce an atomized melt, and    a cooling chamber connected to said atomizer head and intended to receive said atomized melt, the improvement wherein 
 said atomizer head is designed as a hot cyclone opening into said cooling chamber, and which further comprises  
 at least one of burner means and propellant gas nozzle means connected to said hot cyclone.  
   
     
     
         2 . A device as set forth in  claim 1 , wherein said propellant gas nozzle means have propellant gas nozzle means axes and said hot cyclone has a hot cyclone axis, said propellant gas nozzle means axes extending tangentially to said hot cyclone axis, viewed axially.  
     
     
         3 . A device as set forth in  claim 1 , wherein said hot cyclone includes a hot cyclone jacket and said propellant gas nozzle means are designed as slot nozzles extending in the axial direction of said hot cyclone jacket.  
     
     
         4 . A device as set forth in  claim 3 , wherein said hot cyclone includes a discharge opening and said slot nozzles have clear width tapering towards said discharge opening of said hot cyclone.  
     
     
         5 . A device as set forth in  claim 2 , wherein said outlet opening of said melt tundish opens into said hot cyclone outside of said hot cyclone axis.  
     
     
         6 . A device as set forth in  claim 2 , wherein said propellant gas nozzle means axes enclose an acute angle with the projection of said hot cyclone axis and extend in a downwardly oriented manner.  
     
     
         7 . A device as set forth in  claim 1 , wherein said hot cyclone includes a discharge opening running into said cooling chamber and having a cross section corresponding to the clear cross section of said hot cyclone.  
     
     
         8 . A device as set forth in  claim 1 , wherein said hot cyclone includes a discharge opening running into said cooling chamber and having a conical runout region, said conical runout region having a clear cross section smaller than the clear cross section of said hot cyclone.  
     
     
         9 . A device as set forth in  claim 1 , wherein said hot cyclone is powered with a propellant gas having a temperature ranging between 200° and 800° C. and a pressure ranging between 1.5 and 6 bars.  
     
     
         10 . A device as set forth in  claim 9 , wherein said propellant gas is comprised of propellant vapor.  
     
     
         11 . A device as set forth in  claim 1 , further comprising further nozzle means connected to said cooling chamber to inject at least one of water, vapor and hydrocarbons.  
     
     
         12 . A device as set forth in  claim 1 , further comprising a gas duct connected to said hot cyclone to carry off hot gases.  
     
     
         13 . A device as set forth in  claim 1 , further comprising a gas duct connected to said cooling chamber to carry off hot gases.  
     
     
         14 . A device as set forth in  claim 12 , wherein said hot gases comprise at least one of synthesis gases and burning gases.  
     
     
         15 . A device as set forth in  claim 13 , wherein said hot gases comprise at least one of synthesis gases and burning gases.