MXPA00005832A - Top hat furnace - Google Patents

Abstract

The invention relates to a top hat furnace. In order to be able to place a metal coil in a top hat furnace, the coil must be tilted by 90°from its transport position. For doing so, a so-called tilting cradle is used. The annealing hood, heating hood and cooling hood of the top hat furnace have to be lifted by a crane and removed. The aim of the invention is to simplify the structure of such a furnace by avoiding the use of the tilting cradle and an expensive crane. To this end, at least one arbor (6) is arranged on the annealing understructure (1), said arbor extending perpendicular in relation to the base surface of the annealing understructure. The annealing understructure (1) including the annealing hood (10) and the metal coil(s) (7) is supported such that it can be tilted by 90°between a vertical and a horizontal position. In its horizontal position, said annealing hood (10) can be placed onto and removed from the annealing understructure (1). Both the heating hood (11) and the cooling hood are laterally provided with closing and opening means so that an opening is formed that permits the annealing hood (10) to be passed through. In its vertical position, the heating hood (11) as well as the cooling hood can be horizontally moved in a vertical position in relation to the annealing hood (10). The top hat furnace is suitable for annealing bundles or rings of strips, wires and tubes.

Description

OVEN SYSTEM WITH HOOD Technical Field The invention relates to a furnace system with bell for annealing rolls or metal spools, having an annealing substructure, which is seated on a base of the furnace and on which at least one roll or metal spool can be placed with its vertical winding shaft, and having an annealing cap or cap, which can be placed in a sealing manner on the annealing substructure and on which a heating cap or cap or alternatively a cooling cap or cap can be placed .

Background of the Invention To anneal rolls or metal reels, "bell" annealing furnaces are used. These are manufactured by several firms, Junker, Ebner and LOI inter alia. The prior technique described below can be found in the brochures published by the previous firms, for example Ebner Journal, Volume 2, Ref.121106 (September 1998). A system made by Junker is known since 1978, this system is being described in a similar way in a company propaganda publication. The term metal rolls or reels in this context should be taken to mean bundles or rings of strips, wires and tubes. In this context, the metallic rolls or reels are arranged or distributed on an annealing substructure in such a way that their winding axis is vertical. A plurality of rolls or reels are generally stacked one on top of the other, being separated from each other by an intermediate layer, a so-called convective plate or convective star. An annealing cap or cap connected in a sealing manner to the annealing substructure is then placed on the spool or spools, allowing the interior of the annealing cap or cap to be supplied with a protective gas. To heat the annealing cap or cap including the annealing raw materials, i.e. metal rolls or spools, a heating cap or cap equipped with appropriate heating devices is placed on the annealing cap or cap. Once the annealing has been completed, the heating cap or cap is removed again and replaced with a cooling cap or cap, which ensures. the accelerated cooling of the annealing cap or cap and of the annealing material therein. The placement of the rolls or metal reels on the annealing substructure and the placement of the covers or caps is effected by means of a crane system. For handling with conventional means of transport, for example trailers with lifting means with forks, the metal rolls or reels are mounted in such a way that their winding axis is horizontal. This makes it possible, for example, to insert the lifting arms of a trailer equipped with fork lift means into the roll or reel and thereby lift and transport the latter easily. If appropriate, they can also be removed from a rotating pedestal and transported directly to the bell-shaped oven system by the guide using a so-called "C" hook. To place a roll or reel in a bell-shaped oven, the same it must therefore be rotated 90 ° out of its transport position. For this purpose, a so-called tilting support is used. The tilting support has a similar axis or guide element on which the metal roll or spool is placed first of all, if appropriate after a convective plate has been placed on top. The tilting support is mounted so that it is incunable on one side and, after a metal coil has been placed on it, tilts 90 °, with the result that the winding axis of the roll or reel now occupies a vertical position. The roll or reel is then hooked and lifted with the special tabs or the convective plate on which the roll or reel may already be resting is lifted by hooks and crane chains, which simultaneously support the roll or spool laterally, and the roll or spool is moved to the annealing substructure of the bell furnace and placed on this substructure. The convection plates must have the necessary resistance for this purpose, that is, they must be sized to be lifted with a roll or reel. For the bell furnace, they therefore represent a quantity of "dead" material which has to be heated with the rest. The annealing cap or cap, the heating cap or cap and the cooling cap or cap provided with the corresponding lifting lugs, allow themselves to be similarly elevated and transferred by means of the crane. The guide means connected to the annealing substructure are additionally required during placement to ensure the exact position of the rolls or reels and the covers or caps. The handling of the rolls or reels and the covers or caps as described, requires a considerable investment for the furnace system with bell. For work with a crane, for example, the warehouse or workshop must have a corresponding height or the annealing substructure must be arranged in corresponding depth pits or holes. Despite the useful guidance means, accurate placement of the reels and decks and their removal while annealing is completed require experienced operating personnel and continuously alert and are not really safe from risks. The object on which this invention is based is to specify a furnace system with hood which requires less investment and which makes it possible to operate more quickly, more economically and with a lower risk. According to the invention, the object is achieved by virtue of the fact that at least one axis extending normal to the base surface of the annealing substructure is mounted on said annealing substructure, the annealing substructure, including the cover or Annealing cap and the metal spool or reels, are mounted in such a way that they are tiltable 90 ° between a vertical and a horizontal position, the annealing cap or cap can be placed on the annealing substructure and removed from the latter in its position horizontal, both the heating cap or cap and the cooling cap or cap are provided laterally with opening and closing means, which provide the opening which allows the annealing cap or cap, and both the heating cap or cap to be the cooling cap cover can be moved in a vertical position horizontally relative to the 'cover or annealing cap. It is preferable if the pivot about which the annealing substructure can be tilted is located horizontally in an imaginary plane that passes vertically through the base surface of the annealing substructure. The closer the tilt point is moved to the center of gravity of the annealing substructure, the shorter the tilt lever and consequently the force that has to be applied to tilt the annealing substructure. The inclination can be made with conventional hydraulic systems. It is convenient if the heating cap or cap and the cooling cap or cap are provided with a door to open on one side. The door can be of a single design or of double design and is mounted with hinges on the covers or caps. It can also be configured as a fin or spoiler that can be raised. It is possible, for example, that the covers or caps are movable on rails or rails. Distribution is now possible with an economic crane system or deep base pits to load and unload the bell furnace and transport the covers or caps. The rolls or metal reels are placed on the guide means of the annealing substructure, which is inclined by 90 °, in its usual transport position, that is to say with its horizontal winding axis. If appropriate, they are transported to the annealing substructure directly from a winding pedestal on a C-shaped hook of a single-stroke truck. For this purpose, the axes on the annealing substructure are grooved in the axial direction, allowing the hook C to run or extend into these grooves to deposit the rolls or reels. By virtue of the configuration of the bell-oven system according to the invention, it is still possible to automate this process. If the intention is to place a plurality of rolls or reels one above the other in the furnace, a convection plate is placed between each pair of rolls or reels during loading but this convection plate must now be sized only in such a way that it can resist the pressure of the spool or reels above it. After loading the rolls or reels, the annealing cap or cap on the annealing substructure is in a horizontal position on the rolls or reels and connected to said substructure. For this purpose, a transport vehicle based on the principle of a trailer with fork lift means or, once again, the carrier truck, can be provided, for example. The annealing substructure, including the annealing cap or cap and the metal rolls or reels accommodated there, are then tilted back 90 ° to the vertical position. It is in this position that the annealing is effected. For this purpose, the open heating cap or cap is first moved completely on the cover or annealing cap in a vertical position and then closed. After annealing, the heating cap or cap is replaced by a cooling cap or cap of similar construction. Since a number of furnace systems are usually accommodated in a warehouse, the operation cycle can be chosen so that one furnace system is being charged - or discharged while another is annealed and a third is in cooling - mode . The times for the loading and unloading of the bell ovens and the change of the covers or caps can be reduced considerably compared with the previous method. There is no longer any need to handle metal rolls or reels with tabs or projections, which always present a risk of surface damage to the annealing materials. Finally, the safety of workers is improved through the complete management process. The invention will be explained in more detail with reference to an exemplary embodiment. In the associated drawings, Figure 1 shows the annealing substructure according to the invention, with the annealing cap or cap on a schematic side view and Figure 2 shows a heating cap or cap placed on the annealing cap or cap. in a schematic plan view.

Detailed Description of the Ition According to Figure 1, an annealing substructure 1 rests on a furnace base (not specifically shown here). The substructures 2 mounted on the annealing substructure and proposed for the supply equipment, for example the supply lines for the air and for the protective gas and for the assembly of a fan 3, project towards a base pit 4 lowered in the 5th floor of a warehouse or production workshop. Mounted on the annealing substructure 1 are the axes 6, the diameters of which correspond to the internal diameter of the metal rolls or reels 7. For loading the metal rolls or reels 7, the annealing substructure 1, which is mounted on a pivot 8, it is inclined 90 °. In this position, it can now be loaded with the metal reels 7. The drawing indicates the slots 9, within which a 'corresponding C-shaped hook of a coor can travel or operate. An annealing cap or cap 10 is then placed in a horizontal position and connected in a sealing manner to the annealing substructure 1. In Figure 1, the system is shown with interrupted lines in this arrangement, substructures 2 have been omitted by reasons for clarity. After loading and placing the annealing cap or cap 10, the annealing substructure 1 is tilted back to its working position. Cotional hydraulic systems (not shown here) are provided, for example, for tilting. A heating cap or cap 11, shown in Figure 2, is then placed on the annealing cap or anvil 10 for annealing the metal rolls or reels 7. The annealing cap 11 can be removed on the rails or rails 12. and has a door with two fins 13 mounted on the hinges 14 of the door. Once door 13 has been closed, annealing can begin. Once the annealing is completed, the heating cap or cap 11 is then replaced by a cooling cap or cap (not shown here), this cooling cap or cap is again provided with a door. After cooling and after the annealing substructure 1 has been tilted 90 ° again and the annealing cap 10 has been removed, the bright annealed metal rolls or reels 7 can be removed. The loading space 15 for these operations is indicated in Figure 2.

It is noted that in relation to this date, the best method known by the applicant to carry out the aforementioned ition, is the cotional one for the manufacture of the objects to which it relates.

Having described the ition as above, property is claimed as contained in the following

Claims (6)

1. A furnace system with hood for annealing rolls or metal spools, having an annealing substructure which is seated on a furnace base and on which at least one roll or metal spool can be placed with its vertical winding shaft, and having an annealing cap or cap, which can be placed in a sealing manner on the annealing substructure and on which a heating cap or cap or alternatively a cooling cap or cap can be placed, characterized in that at least one The shaft extending normal to the base surface of the annealing substructure is mounted on the annealing substructure, wherein the annealing substructure, including the cover or annealing cap and the metal spool or reels, is mounted in such a way that be incunable 90 ° between a vertical position and a horizontal position, where the cover or annealing cap can be placed on the annealing substructure and removed from the latter in its horizontal position, where both the heating cap or cap and the cooling cap or cap are provided laterally with opening and closing means, causing an opening which allows access through the annealing cap or cap, and wherein both the heating cap or cap and the cooling cap or cap can be moved in a vertical position horizontally relative to the annealing cap or cap.

2. The furnace system with hood according to claim 1, characterized in that the pivot around which the annealing substructure can be inclined is located horizontally in an imaginary plane that passes vertically through the base surface of the annealing substructure.

3. The bell surface system according to claim 1 or 2, characterized in that the annealing substructure can be hydraulically inclined.

4. The bell surface system according to one of the preceding claims, characterized in that the heating cap or cap and the cooling cap each have a door for opening and closing a side.

5. The furnace system with hood according to one of the preceding claims, characterized in that the heating cap or cover and the cover or cooling hat can each be moved on the rails or rails.

6. The furnace system with hood according to any of the preceding claims, characterized in that the shaft or shafts are grooved in the axial direction. SUMMARY OF THE INVENTION The present invention provides a furnace system with hood for annealing rolls or metal spools (7), having an annealing substructure (1) which is seated on a base of the oven and on which at least one roll or metal spool ( 7) can be placed with its vertical winding shaft, and has an annealing cap or cap (10), 1-which can be placed in a sealing manner on the annealing substructure (1) and on which it can be placing a heating cap or cap (11) or alternatively a cooling cap or cap, wherein at least one axis (6) extending normal to the base surface of the annealing substructure (1) is mounted on the substructure of annealing, wherein the annealing substructure (1), including the cover or annealing cap (10) and the metal spool or reels (7), is mounted in such a manner as to be incunable 90 ° between a vertical position and a position n horizontal, where the cover or annealing cap (10) can be placed on the annealing substructure (1) and removed from it in its horizontal position, wherein both the heating cap or cap (11) and the cooling cap or cap are provided laterally with opening and closing means, causing an opening which allows access through the cover or annealing cap (10) , and wherein both the heating cap or cap (11) and the cooling cap or cap can be moved in a vertical position horizontally relative to the annealing cap or cap (10).