Installation for Treating Continuously Cast Bars or Continuously Cast Billets

Abstract

The invention relates to an installation for treating continuously cast bars ( 1 ) or continuously cast billets ( 2 ), which can be heated inside a furnace ( 7 ) to a deformation temperature before shearing off to form slugs ( 6 ) and the subsequent pressing inside a press ( 4 ). To this end, a number of shaft elements ( 8 ) for axially transporting continuously cast bars ( 1 ) or continuously cast billets ( 2 ) extend through the furnace ( 7 ). These shaft elements ( 8 ) are arranged in a fixed manner and mounted outside the furnace ( 7 ).

1 . An installation for treating continuously cast bars or continuously cast billets that may be heated in a furnace to a deformation temperature before shearing to form slugs and subsequent pressing in a press wherein a plurality of shafts for axially transporting continuously cast bars or continuously cast billets extends radially through the furnace, the shafts being stationarily positioned and supported outside the furnace. 
   
   
       2 . The installation according to  claim 1  wherein the plurality of shafts is separated by an axial spacing from one another and linearly positioned, the individual shafts extending radially through the furnace, in particular through combustion chambers and insulation thereof. 
   
   
       3 . The installation according to  claim 2 , wherein each shaft is externally and stationarily supported on both sides outside the combustion chambers and insulation by means of bearings and drives. 
   
   
       4 . The installation according to  claim 1 , wherein at least one shaft, in particular all shafts, are actively driven-together or separately in a controllable manner outside the furnace, individual or correspondingly common conveying elements rotationally driving the shafts. 
   
   
       5 . An installation for treating continuously cast bars or continuously cast billets that may be heated in a furnace to a deformation temperature before shearing to form slugs and subsequent pressing in a press, wherein a plurality of gas burners is arrayed over the entire circumference of the furnace. 
   
   
       6 . The installation according to  claim 5  wherein the plurality of gas burners is distributed over the circumference in the combustion chambers and insulation in a completely radially circumferential manner, this array of gas burners preferably being provided between two adjacent shafts. 
   
   
       7 . The installation according to  claim 5  wherein a plurality of arrays together with completely radially circumferential gas burner arrays is provided over the entire length of the furnace. 
   
   
       8 . The installation according to at  claim 5  wherein the individual gas burners in a circumferential array are angularly offset with respect to the adjoining circumferential array. 
   
   
       9 . The installation according to  claim 5  wherein, with respect to a first array of completely radially circumferential gas burners, a subsequent array of radially circumferential gas burners that is axially offset with respect to the first array is also angularly offset, preferably always alternatingly offset. 
   
   
       10 . An installation for treating continuously cast bars or continuously cast billets that may be heated in a furnace to a deformation temperature before shearing to form slugs and subsequent pressing in a press wherein a plurality of waste-gas outlet elements is provided at an axial spacing from one another in a region of a waste-gas vent. 
   
   
       11 . The installation according to  claim 10  wherein the waste-gas outlet elements in the region of the waste-gas vent are fitted into the region at an axial spacing from one another, and are aligned approximately in a perpendicular, inclined, or curved manner with respect to a transport direction of the continuously cast bars or continuously cast billets. 
   
   
       12 . The installation according to  claim 10  wherein the respective waste-gas outlet elements are fitted directly into the waste-gas vent, in the region of the combustion chambers and insulation. 
   
   
       13 . The installation according to  claim 10  wherein the plurality of waste-gas outlet elements is mounted above a waste-gas vent. 
   
   
       14 . The installation according to  claim 10  wherein the individual waste-gas outlet elements are separated by the same or different axial, selectable spacings from one another, a spacing between adjacent waste-gas outlet elements being able to be manually or automatically changed. 
   
   
       15 . An installation for treating continuously cast bars or continuously cast billets that may be heated in a furnace to a deformation temperature before shearing to form slugs and subsequent pressing in a press wherein for direct preheating of a continuously cast bar or continuously cast billet to be heated, the continuously cast bar and/or continuously cast billet may be guided above a waste-gas vent in the furnace in the region of a waste gas duct. 
   
   
       16 . The installation according to  claim 15  wherein a plurality of shafts is provided above the waste-gas vent for axially transporting continuously cast bars or continuously cast billets, and is positioned transverse to the furnace, i.e., transverse to the waste gas duct. 
   
   
       17 . The installation according to  claim 15  wherein the plurality of shafts is stationarily supported outside the furnace and/or outside the waste gas duct, the shafts being driven outside the furnace and/or outside the waste gas duct. 
   
   
       18 . The installation according to  claim 15 , wherein the shafts are separated by an axial spacing from one another and extend through the waste gas duct and/or furnace in a radial, i.e., transverse, manner, the ends of the shafts being externally stationarily supported and driven outside the waste gas duct and furnace. 
   
   
       19 . The installation according to  claim 15  wherein a plurality of waste-gas outlet elements separated by an axial spacing from one another is provided in a region of a waste-gas vent, the continuously cast bar or the continuously cast billet on the shafts being heatable above the waste-gas outlet elements. 
   
   
       20 . The installation according to  claim 15 , wherein after the continuously cast bar or the continuously cast billet is heated, the bar or billet may be delivered via a conveyor to the furnace for tempering to the deformation temperature, whereby the preheated continuously cast bar or the preheated continuously cast billet may be delivered via the shafts to a transfer unit that supplies the bar or billet to the furnace for heating to the deformation temperature.