Continuous Casting Device for Producing Slabs Made of Steel

Abstract

A continuous casting device for producing slabs of steel having a mold and a roller apron downstream of the mold which has frameworks with bottom frames and top frames at which are provided guide rollers whose gap width is continuously adjustable by means of adjusting elements which connect the frames. Cylinders controlled by switching valves are provided as adjusting elements. The advantages of position-regulated cylinders as adjusting elements are made use of, but at a reduced cost. To this end, the valves are constructed as fast switching valves, or the valves are provided with a control enabling a fast switching process.

1 .- 6 . (canceled) 
   
   
       7 . A continuous casting device configured for producing slabs of steel comprising:
 a mold;   a roller apron arranged downstream of the mold, the roller apron comprising a framework of at least one bottom frame and at least one top frame;   a plurality of guide rollers arranged in at least one of the at least one bottom frame and at least one top frame;   at least one cylinder configured as an adjusting element that connects the at least one bottom frame and at least one top frame, the at least one adjusting element configured to continuously adjust a gap width between the at least one bottom frame and at least one top frame; and   a fast switching valve configured to control the at least one cylinder configured as an adjusting element.   
   
   
       8 . A continuous casting device for producing slabs of steel comprising:
 a mold;   a roller apron arranged downstream of the mold, the roller apron comprising a framework of at least one bottom frame and at least one top frame;   a plurality of guide rollers whose gap width is continuously adjustable;   a plurality cylinders configured as adjusting elements connect the at least one bottom frame and at least one top frame;   a plurality of switching valves configured to control respective ones of the plural cylinders; and   a control configured to control the plural switching valves enabling a fast switching process.   
   
   
       9 . The continuous casting device according to  claim 7 , wherein the fast switching valve has a connection configured for attaching at least one pressure measuring cell. 
   
   
       10 . The continuous casting device according to  claim 7 , wherein at least one unit configured for convective heat removal is associated with the fast switching valve. 
   
   
       11 . A method for the operation of a continuous casting device, the continuous casting device comprising:
 a mold;   a roller apron arranged downstream of the mold, the roller apron comprising a framework of at least one bottom frame and at least one top frame;   a plurality of guide rollers whose gap width is continuously adjustable;   a plurality cylinders configured as adjusting elements connect the at least one bottom frame and at least one top frame;   a plurality of valves configured to control respective ones of the plural cylinders; and   a control configured to control the plural valves,   
     the method comprising:
 oscillating the top frame using a triangular signal. 
 
   
   
       12 . The method for the operation of a continuous casting device according to  claim 11 , wherein a measuring time for the oscillating of the top frame is as short as possible. 
   
   
       13 . The continuous casting device according to  claim 8 , wherein at least one of the plural switching valves has a connection configured for attaching at least one pressure measuring cell. 
   
   
       14 . The continuous casting device according to  claim 8 , wherein at least one unit configured for convective heat removal is associated with at least one of the plural switching valves. 
   
   
       15 . The method for the operation of a continuous casting device according to  claims 11 , wherein the triangular signal is eroded. 
   
   
       16 . The continuous casting device according to  claim 10 , wherein the at least one unit configured for convective heat removal is a ventilator. 
   
   
       17 . The continuous casting device according to  claim 14 , wherein the at least one unit configured for convective heat removal is a ventilator. 
   
   
       18 . The continuous casting device according to  claim 7 , further comprising dies wherein the dies are about 1.8 mm to about 2 mm. 
   
   
       19 . The continuous casting device according to  claim 8 , further comprising dies wherein the dies are about 1.8 mm to about 2 mm. 
   
   
       20 . The continuous casting device according to  claim 8 , wherein the control is configured to oscillate the top frame using a triangular signal.