Metallurgical furnace
A metallurgical furnace including a hearth, a sidewall structure, and a surrounding cooling element structure including cooling elements. Each cooling element have a planar back surface. A surrounding binding structure including binding sections surrounds partly the surrounding surface. Adjacent binding sections of the surrounding binding structure are connected by tension assemblies. At least one planar back surface of at least one cooling element is parallel with and is in a horizontal direction of the metallurgical furnace supported by at least one planar surface means of at least one binding section of the surrounding binding structure. Said at least one cooling element of the surrounding cooling element structure is located at least partly between the surrounding surface and said one binding section.
1 . A metallurgical furnace comprising:
a hearth comprising a surrounding surface,
a sidewall structure that extends upwards from the hearth of the metallurgical furnace,
a surrounding cooling element structure comprising cooling elements, wherein each cooling element has a planar back surface,
a surrounding binding structure of metal surrounding at least partly the surrounding surface of the hearth of the metallurgical furnace,
the surrounding binding structure comprising binding sections of metal each binding section comprising at least one planar surface means,
adjacent binding sections of the surrounding binding structure being connected by tension assemblies configured to allow relative movement between adjacent binding sections in the surrounding binding structure and configured to force adjacent binding sections in the surrounding binding structure in a direction towards each other,
the surrounding cooling element structure being at least partly surrounded by the surrounding binding structure,
at least one planar back surface of at least one cooling element of the surrounding cooling element structure is parallel with at least one planar surface means of one binding section of the surrounding binding structure and is supported by said at least one planar surface means of one binding section of the surrounding binding structure, and
said at least one cooling element of the surrounding cooling element structure being located at least partly between the surrounding surface of the hearth of the metallurgical furnace and said one binding section of the surrounding binding structure.
2 . The metallurgical furnace according to claim 1 , wherein
the hearth comprises at least one continuous layer of refractory material, and
said at least one continuous layer of refractory material being laterally limited by the surrounding surface of the hearth.
3 . The metallurgical furnace according to claim 1 , wherein
the sidewall structure comprises at least one continuous surrounding upright refractory layer,
said at least one continuous surrounding upright refractory layer being in thermal contact with the surrounding cooling element structure, and
said at least one continuous surrounding upright refractory layer fully laterally surrounding a furnace space configured to hold molten material such as molten material containing molten metal.
4 . The metallurgical furnace according to claim 1 , wherein
adjacent binding sections of the surrounding binding structure being connected by tension assemblies so that tension assemblies extend between attachment means provided at adjacent binding sections of the surrounding binding structure.
5 . The metallurgical furnace according to claim 1 , wherein
the surrounding binding structure extend in the vertical direction to a level above the surrounding surface of the hearth of the metallurgical furnace and/or to a level below the surrounding surface of the hearth of the metallurgical furnace.
6 . The metallurgical furnace according to claim 1 , wherein
the ratio of the number of binding sections in the surrounding binding structure to the number of cooling elements in the surrounding cooling element structure being 1 to N, where N is 2 to 8.
7 . The metallurgical furnace according to claim 1 , wherein
the number of binding sections in the surrounding binding structure being at least 15, and
the number of cooling elements in the surrounding cooling element structure being at least 30.
8 . The metallurgical furnace according to claim 1 , wherein
adjacent binding sections in the surrounding binding structure being configured to overlap each other in at least 25% of second joints between two adjacent binding sections in the surrounding binding structure in a surrounding direction of the surrounding binding structure.
9 . The metallurgical furnace according to claim 1 , wherein
adjacent cooling element in the surrounding cooling element structure being configured to overlap each other in at least 25% of first joints between two adjacent cooling element in the surrounding cooling element structure in a surrounding direction of the surrounding cooling element structure.
10 . The metallurgical furnace according to claim 1 , wherein
at least 25% of first joints between two adjacent cooling elements of the surrounding cooling element structure are unaligned with a second joint between two adjacent binding sections of the surrounding binding structure at a vertical level of the surrounding binding structure of the metallurgical furnace.
11 . The metallurgical furnace according to claim 1 , wherein
at least 25% of first joints between two adjacent cooling elements of the surrounding cooling element structure are in a radial direction of the metallurgical furnace located at one binding section of the surrounding binding structure at a vertical level of the surrounding binding structure of the metallurgical furnace, and
at least 25% of second joints between two adjacent binding sections of the surrounding binding structure are in the radial direction of the metallurgical furnace located at a cooling element of the surrounding cooling element structure at the vertical level of the surrounding binding structure of the metallurgical furnace.
12 . The metallurgical furnace according to claim 1 , wherein
said at least one planar surface means of at least one binding section of the surrounding binding structure being formed at least partly by a planar metal plate of a plate section of said at least one binding section of the surrounding binding structure.
13 . The metallurgical furnace according to claim 1 , wherein
the cooling elements of the surrounding cooling element structure being unattached to the binding sections of the surrounding binding structure.
14 . The metallurgical furnace according to claim 1 , wherein
a surrounding sidewall supporting structure of metal surrounding at least partly the surrounding cooling element structure, and
the cooling elements of the surrounding cooling element structure being attached to the surrounding sidewall supporting structure.
15 . The metallurgical furnace according to claim 1 , wherein
the surrounding cooling element structure being partly surrounded by the surrounding binding structure.