Burner arrangement

Abstract

The invention relates to a burner arrangement ( 1 ) in particular for heating or keeping warm, in particular casting stream protection devices and/or immersion casting devices of a continuous casting plant, comprising a reservoir ( 5 ) that can receive, in particular a shroud tube or an immersion tube, said reservoir comprising a base ( 6 ) and a cover ( 7 ). The wall ( 8 ) of the reservoir ( 5 ) is formed by at least one porous burner.

1 . A burner arrangement ( 1 ) for heating or keeping hot the pouring stream shielding and/or submerged nozzle devices of a continuous casting plant with a container ( 5 ) for holding a ladle shroud or an immersion nozzle, wherein at least part of the wall ( 8 ) of the container ( 5 ) is formed by at least one porous burner ( 3 ) or comprises a porous burner ( 3 ), where the porous burner comprises porous burner segments ( 3   a,    3   b,    3   c,    3   d ) and the porous burner segments ( 3   a,    3   b,    3   c,    3   d ) of the porous burner form rings and/or rows extending in the axial direction, wherein a plurality of segments forms rings or rows extending in the circumferential direction, and each of the porous burner segments ( 3   a,    3   b,    3   c,    3   d ) is supplied with fuel through its own separate feed line ( 4 ), preferably radially from the outside, where at least certain individual feed lines ( 4 ) are supplied with fuel through a common supply line, and the supply line is designed in a ring-like manner and is connected to the feed lines. 
   
   
       2 . A burner arrangement according to  claim 1 , wherein the porous burner segments ( 3   a,    3   b,    3   c,    3   d ) of the porous burner are arranged hexagonally or octagonally around the circumference. 
   
   
       3 . A burner arrangement according to  claim 1 , wherein the container ( 5 ) comprises a bottom ( 6 ) and a cover ( 7 ), where the bottom ( 6 ) and/or the cover ( 7 ) preferably consists of a bottom plate and/or cover plate. 
   
   
       4 . A burner arrangement according to  claim 1 , wherein the container ( 5 ), preferably the cover ( 7 ), comprises an opening for the discharge of exhaust gas. 
   
   
       5 . A method for controlling a burner arrangement according to  claim 1 , wherein porous burner segments ( 3   a,    3   b,    3   c,    3   d ) are turned on or turned off as a function of the desired heating intensity or heat output. 
   
   
       6 . A method for controlling a burner arrangement according to  claim 1 , wherein at least every other segment ( 3   a,    3   b,    3   c,    3   d ) of a ring extending around the circumference of the porous burner is turned on or turned off. 
   
   
       7 . A method for controlling a burner arrangement according to  claim 1 , wherein segments ( 3   a,    3   b,    3   c    3   d ) of rings or rows of porous burner segments which are adjacent to each other or farther apart in the axial direction of the porous burner are turned on or turned off.