Coolable furnace wall structure
AssigneeHoogovens Groep B.V.
InventorFrank Kaptein
Life of this patent
Estimating the term…
Abstract
A coolable furnace wall structure has a steel shell and a refractory lining of the shell. Spaced apart openings through the shell, correspond with recesses in the lining which have a transverse width which increases away from the shell. In each opening and corresponding recess is an assembly of at least to hollow cooling plates which are removably connected to the shell. A first one of the cooling plates has a transverse width which does not increase away from the shell opening whereby that cooling plate can be removed first from the assembly through the opening and at least one other cooling plate of the assembly has a maximum transverse width which permits its removal through the opening after removal of the first plate.
Claims12
A coolable furnace wall structure comprising:
- a steel shell,
- a refractory lining of the steel shell on the inside thereof,
- a plurality of spaced apart openings through the shell,
- recesses in the refractory lining corresponding to said openings, each recess extending inwardly from the respective opening and having a transverse width which increases away from the shell,
- for each said opening and corresponding recess, an assembly of at least two hollow cooling plates which are removably connected to the shell and extend from the shell into the recess and have supply and discharge openings for coolant, wherein at least a first one of said cooling plates of the assembly has a transverse width which does not increase away from the shell opening whereby that cooling plate can be removed first from the assembly through the opening and at least one other cooling plate of the assembly has a maximum transverse width which permits its removal through the opening after the removal of said first plate.
An assembly of cooling plates for use in a furnace wall structure comprising a first cooling plate having an end with supply and discharge openings for coolant, top and bottom parallel sides and two vertical sides which do not increase in distance therebetween in extending from said end and a second cooling plate having an end with supply and discharge openings, top and bottom parallel sides and two vertical sides which increase in distance therebetween in extending from said end of said second cooling plate, said discharge opening of one plate being connected to the inlet opening of the other plate.
Dependencies are inferred from the claim text.