Furnace for heating metal goods

Abstract

The invention pertains to a furnace for heating metal goods.

Having described the invention, the following is claimed: 
     
         1 . A furnace for heating metal goods, comprising:
 a furnace chamber that is designed for accommodating metal goods ;   an input side with a furnace inlet , through which metal goods to be heated in the furnace chamber can be introduced into the furnace chamber;   an output side with a furnace outlet, through which metal goods heated in the furnace chamber can be removed from the furnace chamber;   a ceiling that defines the top of the furnace chamber between the input side and the output side;   a furnace floor that defines the bottom of the furnace chamber between the input side and the output side;   sidewalls that laterally define the furnace chamber between the input side and the output side;   burners for firing the furnace chamber, wherein the burners comprise at least one of the following types of burners:   roof burners arranged in the region of the ceiling or lateral burners arranged in the region of the sidewalls;   additional burners for firing the furnace chamber that are arranged in the region of the furnace floor.   
     
     
         2 . The furnace according to  claim 1 , further comprising:
 a plane E, along which metal goods to be heated in the furnace chamber can be transported through the furnace chamber, wherein the plane E
 divides the furnace chamber into an upper furnace space that lies between the plane E and the ceiling and 
 a lower furnace space that lies between the plane E and the furnace floor; 
   at least one housing, in which the additional burners are arranged;   wherein the clearance between the upper side of the at least one housing and the underside of the plane E amounts to at least 40% of the height H of the lower furnace space.   
     
     
         3 . The furnace according to  claim 1 , further comprising a service channel that is arranged completely or essentially underneath the furnace floor, wherein the additional burners can be operated from said service channel. 
     
     
         4 . The furnace according to  claim 1 , further comprising a flue gas supply means, through which flue gases can be supplied to the additional burners. 
     
     
         5 . The furnace according to  claim 1 , further comprising:
 auxiliary burners for firing the furnace chamber that are arranged in the region of the furnace floor;
 between the additional burners and the input side. 
   
     
     
         6 . The furnace according to  claim 2 , further comprising:
 a plane E, along which metal goods to be heated in the furnace chamber can be transported through the furnace chamber, wherein the plane E
 divides the furnace chamber into an upper furnace space that lies between the plane E and the ceiling and 
 a lower furnace space that lies between the plane E and the furnace floor; 
   at least one housing, in which the additional burners are arranged;   wherein the clearance between the upper side of the at least one housing and the underside of the plane E amounts to at least 40% of the height H of the lower furnace space.   
     
     
         7 . The furnace according to  claim 2 , further comprising a flue gas supply means, through which flue gases can be supplied to the additional burners. 
     
     
         8 . The furnace according to  claim 2 , further comprising:
 auxiliary burners for firing the furnace chamber that are arranged in the region of the furnace floor;
 between the additional burners and the input side. 
   
     
     
         9 . The furnace according to  claim 3 , further comprising a flue gas supply means, through which flue gases can be supplied to the additional burners. 
     
     
         10 . The furnace according to  claim 3 , further comprising:
 auxiliary burners for firing the furnace chamber that are arranged in the region of the furnace floor;
 between the additional burners and the input side. 
   
     
     
         11 . The furnace according to  claim 4 , further comprising:
 auxiliary burners for firing the furnace chamber that are arranged in the region of the furnace floor;
 between the additional burners and the input side.