RU96118488A - INNER REFRACTORY COOLER - Google Patents

Claims (1)

1. The lining of the furnace wall having an outer casing and an external cooling source associated with the outer casing, containing a refractory lining adjacent to the outer casing, while the refractory lining has a hot front or firing surface exposed to high temperature during operation of the furnace, referred to as refractory the lining includes a plurality of elements from a highly heat-conducting material; the elements pass into the refractory lining in the direction of the firing surface, each of the elements does not provide discontinuous path of the heat sink from the end of the element located closer to the fire surface to the outer casing of the furnace, characterized in that in the refractory lining many elements are arranged and spaced at intervals to ensure an essentially uniform temperature along the fire surface of the furnace in the vicinity of the elements in the process ovens.  2. The lining of the furnace wall according to claim 1, characterized in that an essentially uniform temperature is reached over the entire firing surface of the furnace.  3. The lining of the furnace wall according to claim 2, characterized in that the plurality of elements are arranged in such a way that said elements are relatively concentrated in the hot zones of the furnace and a relatively smaller number of elements are located in the colder areas of the furnace.  4. The lining of the furnace wall according to any one of claims 1 to 3, characterized in that a plurality of elements of highly heat-conducting material pass only partially into the refractory lining in the direction towards the hot surface of the furnace.  5. The lining of the furnace wall according to any one of claims 1 to 4, characterized in that the highly heat-conducting material is a metal or metal alloy.  6. The lining of the furnace wall according to claim 5, characterized in that said metal or metal alloy is copper.  7. The lining of the furnace wall according to claim 5, characterized in that the elements of high-heat conductive material include metal wires or metal rods.  8. The lining of the furnace wall according to claim 7, characterized in that the diameter of the metal wires or metal rods is up to 25 mm.  9. The lining of the furnace wall according to any one of claims 1 to 6, characterized in that the elements of the highly heat-conducting material are made by soaking the refractory bricks with the molten metal and ensuring the solidification of the molten metal.  10. The lining of the furnace wall according to claim 9, characterized in that only part of the path to the refractory bricks is impregnated with the molten metal.  12. The lining of the furnace wall according to any one of claims 1 to 8, characterized in that a plurality of elements are fixed or attached to the outer wall.  11. The lining of the furnace wall according to any one of claims 1 to 8, characterized in that a plurality of elements are made in one piece with the outer casing.  13. The lining of the furnace wall according to claim 2, characterized in that a plurality of elements are present substantially throughout the lining of the wall.  14. The lining of the furnace wall according to any one of claims 1 to 12, characterized in that a plurality of wall elements are concentrated in areas that would otherwise have to be hot furnace areas.  15. Method of furnace lining with wall lining containing a refractory lining having a plurality of high-heat conducting material passing from the outer casing of the lining to a refractory lining, characterized in that it includes: (a) calculating the heat flux through the lining of the wall necessary to achieve the desired temperature on the firing surface of the wall lining; (b) determining the wall lining thickness and thermal conductivity of the wall lining required to achieve the heat flux calculated in step (a); (c) determining the location of the aforementioned set of elements and the intervals between them at the wall lining required to ensure thermal conductivity; and (d) supplying the furnace with a wall lining, with the elements being in thermal contact with the outer casing, said wall lining achieving a substantially uniform temperature along the hot face during operation of said furnace.  16. The method according to p. 15, characterized in that the elements are concentrated in the hot zones of the furnace and a relatively smaller number of elements are located in the cooler areas of the furnace. 17. The method according to PP.15 and 16, characterized in that the said heat flux is calculated by the equation

where Q is the heat flow, T _f is the furnace temperature, T _c is the cooling temperature used to cool the outer casing, R _TOT is the total total thermal resistance of the wall lining and the total thermal resistance of the wall lining R _TOT is determined by the expression

,
where L is the thickness of the wall lining; and λ is the thermal conductivity of the wall lining.  18. The method according to any of paragraphs.15-17, characterized in that it further includes fixing a number of the above elements to the inner wall of the outer casing of the furnace in such a way that the elements are in thermal contact with the outer casing and applying a fire-resistant material to the inner wall of the outer casing the formation of a coating on the inner wall.  19. The method according to p. 18, characterized in that the refractory lining has a thickness necessary to completely cover a number of elements.  20. The method according to p. 18 or 19, characterized in that the step of fixing the elements involves attaching the copper wire mesh to the inner mesh of the outer case, while the copper wire mesh has additional copper wires mounted at the intersection points on the mesh and extending essentially at right angles to the grid plane.