TH50085B - Industrial furnaces - Google Patents

Abstract

The DC60 (07/06/58) industrial furnace is designed, for example, in accordance with the Maerz regenerative furnace principle, with multiple (4) inner walls converging into a curve. and is the part that touches hot gas swirl which at least has a convex outer lining (11) of the furnace in which it was built. from molded bricks to interlock with each other and refractory (11) in order to prevent damage due to stress caused by The heat in the convex lining (13) when the furnace is heated. These layers are intercepted in the direction they converge. together by at least one replacement site (15). These areas consist of concrete molded bricks and Two fireproof areas (20,21) which are poured on adjacent molded brick (11) and on the other side of the expanded weld (19). For example, according to the principle of the Maerz regenerative kiln, there are several (4) inner walls that are curved to meet. and is the part that touches hot gas swirl which at least has a convex outer lining (11) of the furnace in which it was built. from molded bricks to interlock with each other and refractory (11) in order to prevent damage due to stress caused by Heat in the convex linings (13) When the furnace is heated, these layers are obstructed in the direction of convergence. together by at least one replacement area (15). These areas consist of concrete molded bricks and Two fire-resistance (20,21), poured over the adjacent molded brick (11) and on the other side of the expanded weld (19) -------------- ------------------------ Industrial furnaces designed, for example, in accordance with the principle of the Maerz regenerative furnace, which have floor walls. in several layers (4), which are convergent and convergent, and are exposed to the eddy gas, at least with the convex outer wall (11) of the furnace for which it is made; from Refractory molded bricks welded together (11) to prevent stress damage caused by The heat in the wall bushings is borne in convex arcs (13). When the furnace is heated, these layers are obstructed in the direction of converged by at least one replacement site (15). These areas consist of bricks. Two areas of fire-resistant molded concrete (20,21), which is poured over adjacent molded brick (11) and on the other side of the Expandable anchor (19)

Claims (9)

All rights reserved which will not appear on the advertisement page: Edited 17/06/15 1. An industrial kiln having a multi-layered inner wall (4) which is convergently curved, wherein at least one convex lining layer (13) has interlocking refractory molded bricks (11), characterized in that the convex lining layer (13) formed by said molded bricks (11) is interrupted in the convergent direction by at least one replacement zone (15) formed by concrete and refractory molded bricks (20, 21; 30, 31) and having an expanding interface (19; 28, 29), wherein concrete and refractory molded bricks (20,21; 30,31) are poured over the adjacent molded bricks (11), so that these bricks interlock with each other, forming a tooth pattern of these bricks, and are bonded to the inner layer (5) of the inner wall (4) by concrete bonds (22,23). 2. The furnace according to claim 1, wherein the expanded connection portion (28,29) is of a labyrinth shape. 3. The furnace according to claim 1 or 2, characterized in that the width of the expanded weld (19; 28,29) when the furnace is cooled is completely closed at the furnace operating temperature. 4. The kiln of claim 3, characterized in that the dimensions of the expansion joints (19; 28, 29) are such that they are closed at the operating temperature of the kiln and the formed bricks (9) of the convex lining layer (11) are displaced under the compression force arising in the direction of the converging curves of these outer layers. 5. The furnace according to any one of claims 1 to 4, characterized in that the compressible insulating material is placed within the expanded weldment (19; 28, 29). 6. The kiln of any one of claims 1 to 5, characterized in that the inner support layer (5) of the inner wall (4) is made of metal, and the concrete anchors (22, 23) inserted within the poured concrete formwork bricks (20, 21; 30, 31) surrounding the expansion joints (19; 28, 29) are secured to the metal support layer (5). 7. The furnace of any one of claims 1 to 6, characterized in that the inner wall (4) is suspended in the furnace, the metal support layer (5) being aligned with the supporting wall by a bottom bracket (7). 8. The kiln of any one of claims 1 to 7, characterized in that the width of the radius of the concrete forming bricks (20, 21) of at least one replacement area is equal to the width of the radius of the forming bricks (11) in the convex inner lining wall (13). 9. The kiln of any one of claims 1 to 7, characterized in that the concrete forming bricks (32, 33) are designed in an inward-curving direction (34, 35) surrounding at least one concrete anchor (22, 23), and extending to a metal support layer (5). The kiln of any one of claims 6 to 9, characterized in that the anchors in at least one region adjacent to the metal support layer (5) are designed to be flexible or adherent in the direction of the converging curve of the inner wall (4) and fixed in a direction perpendicular to that direction. ---------------------------------------------An industrial kiln having multiple inner walls (4) convergingly curved, wherein at least one inner wall has a convex shape (13) and is provided with interlocking, fire-resistant molded bricks (11), characterized in that the convex inner wall (13) formed by said molded bricks (11) is interrupted in the converging direction by at least one replacement zone (15) formed by refractory concrete molded bricks (20,21; 30,31) and having expanding anchors (19; 28,29), wherein refractory concrete molded bricks (20,21; 30,31) are poured over the adjacent molded bricks (11), so that they lock together by their teeth and are bonded to the inner layer (5) of the inner wall (4) by concrete bonds. (22,23)The kiln of claim 1, characterized in that the expandable anchors (28,29) are of a labyrinth shape; the kiln of claims 1 or 2, characterized in that the width of the expandable anchors (19; 28,29) when the kiln is cooled is completely closed at the kiln operating temperature; the kiln of claim 3, characterized in that the dimensions of the expandable anchors (19; 28,29) are such that they are closed at the kiln operating temperature, and the molded bricks (9) of the convex outer layer (11) are displaced under the compressive stresses arising in the direction of the converging curves of these outer layers; the kiln of any one of claims 1 to 4, characterized in that the insulating material A compressible can be arranged within an expandable anchorage (19; 28, 29). The kiln of any one of claims 1 to 5, characterized in that the inner support layer (5) of the inner wall (4) is made of metal, and concrete anchors (22, 23) inserted within poured concrete formwork bricks (20, 21; 30, 31) surrounding the expandable anchorage (19; 28, 29) are secured to the metal support layer (5). The kiln of any one of claims 1 to 6, characterized in that the inner wall (4) is suspended in the kiln, wherein the metal support layer (5) is aligned with the wall supported by a lower anchorage (7). The kiln of any one of claims 1 to 7, characterized in that the width of the radius of the concrete formwork bricks (20, 21) of at least one backfill zone is equal to the width of Radius of the concrete formwork brick (11) in the convex inner wall (13). The kiln of any one of claims 1 to 7, characterized in that the concrete formwork brick (32, 33) is designed in an inward-curving direction (34, 35) surrounding at least one concrete anchor (22, 23), and extending to a metal support layer (5). The kiln of any one of claims 6 to 9, characterized in that the anchors separated in at least one region adjacent to the metal support layer (5) are designed to be flexible or flexural in the direction of the converging curve of the inner wall (4) and fixed in a direction perpendicular to that direction.