Patent ID: 7897100

Claim:
Equipment ( 1 ) for the continuous production of steel with the use of metal charge materials ( 8 ), which comprises a melting vessel ( 2 ) with at least one burner ( 14 ) for fossil fuels ( 23 ) that acts on the charge materials in a lower part ( 9 ) of the melting vessel ( 2 ), and a treatment vessel ( 3 ), which is connected with the lower part ( 6 ) of the melting vessel ( 2 ) by a taphole ( 10 ), such that the molten metal ( 16 ) is continuously discharged into the treatment vessel, in which the desired grade of steel is adjusted, such that the charge materials ( 8 ) are preheated in an upper part of the melting vessel ( 2 ) by the process gases ( 13 ), and such that gases ( 22 ) are introduced into the melting vessel ( 2 ) from the outside for post combustion of the process gases ( 13 ), wherein the melting vessel ( 2 ) has a central hollow interior shaft ( 5 ), which extends from above into the melting vessel ( 2 ) along the longitudinal axis of the melting vessel ( 2 ) substantially up to a level of the tap hole, and that the wall ( 20 ) of the interior shaft ( 5 ) has inlets ( 21 ) that connect an interior of the shaft ( 5 ) with an interior of the melting vessel ( 2 ) for introducing post-combustion gases ( 22 ) from the interior of the shaft ( 5 ) to the interior of the melting vessel ( 2 ), which are arranged one above the other along the casing of the interior shaft for post combustion of the process gases ( 13 ) in stages in post-combustion planes (E 1 -E 4 ) arranged one above the other, wherein the interior shaft ( 5 ) has feed means ( 19 ) for introducing fossil fuels to at least one burner ( 14 ) arranged at an end of the interior shaft that projects into the charge materials (B).