WO2002008557A1 - Method and device for producing a fire prevention closing wing, and fire prevention closing wing produced therewith - Google Patents

Abstract

The invention relates to a method for producing a fire prevention closing wing (33, 16), especially a fire door panel (16), comprising an outer housing (7, 19), especially made of sheet metal and enclosing a filling material (13) made of mineral substances (2, 25) and binding agents (6). The aim of the invention is to produce a fire prevention closing wing in a cost-effective manner. In order to achieve this, the outer housing (7, 19) comprises a cavity which can be accessed from outside by means of at least one housing opening (11, 22), said housing opening being preferably smaller than the cavity in terms of length and/or width. A mineral-based loading agent (2, 25), either in bulk or in liquid form, and an inorganic binding agent (6) are introduced via the at least one housing opening (11, 22) to form the filling material (13). The invention also relates to a device for carrying out said method and a fire prevention closing wing produced (13) therewith.

Description

METHOD AND DEVICE FOR MANUFACTURING A FIRE-PROTECTIVE EBÄU DE LOCKING WING AND A PRODUCTABLE FIRE PROTECTING BUILDING LOCKING WING

The invention relates to a method for producing a fire protection building closing wing, in particular a fire protection door leaf, with an outer housing, in particular made of sheet metal, which encloses a filling filled with minerals with a binder. In addition, the invention relates to a fire protection building closing wing, in particular fire protection door leaf, with an outer housing, in particular made of sheet metal, which encloses a filling formed from minerals with a binder. Finally, the invention relates to a device for producing a fire protection end wing, in particular a fire door leaf, with an outer housing, in particular made of sheet metal, which encloses a filling formed from minerals with a binder.

The invention thus relates generally to building closures suitable for fire protection, such as fire protection doors and fire protection gates, and in particular relates to a wing intended for such a fire protection building closure, for example a door leaf of a fire protection door or a door leaf of a fire protection gate. Known fire protection doors, as they are available on the market, have an outer jacket made of sheet metal and an inner filling of an insulating and insulating layer, which is formed from a glass fiber or rock wool mat. The housing is formed, for example, by a door leaf box which forms one broad side of the door leaf and several or all of the narrow sides of the door leaf and which is closed by means of a cover.

A fire protection door leaf formed with such a door leaf box is known from WO96 / 07004, to which full reference is made for further details regarding materials and structure, including that of the invention.

The insulating materials usually used as fillers in fire protection doors consist of mineral fiber panels (rock wool panels or glass wool panels). The production takes place in such a way that the filling is inserted into the box in the form of a plate and then the box is closed by means of the lid. The mineral fiber panels are supplied for the various door types with the appropriate length, width and thickness and are stored by the door manufacturer. Such mineral wool mats are manufactured, for example, by Grünzweig and Hartmann AG. These known mineral wool boards generally consist of mineral wool, namely rock wool or glass wool, which are kept in plate form by means of an organic binder, the plates being cut to the desired size.

In fire tests, it has now emerged that doors constructed in this known manner have failed, even though the temperatures measured on the door had not yet reached the permitted limit values. Nevertheless, fire has penetrated.

Known devices for producing such fire doors have a device for providing mineral mats in the appropriate size and thickness. Depending on the type of casing, other known devices for producing the casing are naturally also provided, such as, for example, a device for producing the box and a device for producing the lid. Devices for producing a door leaf housing are also indicated in WO96 / 07004. They also have an insertion device for inserting the mineral wool mats and a welding device in which the lid and the box are connected to one another. The supply of suitable mats is complex, because the mats either have to be delivered "just in time" for manufacture or corresponding mat sizes have to be stored for each desired size.

The object of the invention is to provide a method and a device for producing a fire protection building closing wing of the type mentioned at the outset, with which fire protection building closing wings with improved fire resistance can be produced in a more cost-effective manner. In addition, a fire protection building end wing that can be produced with such a method or with such a device is to be created with improved fire resistance.

This object is achieved by a method having the steps of the appended claim 1, an apparatus having the features of the appended claim 14 and a fire protection building end wing having the features of claim 10.

Advantageous embodiments of the invention are the subject of the dependent claims. According to the invention, a manufacturing method is provided for producing the fire protection building end wing, in particular a fire protection door leaf, which is characterized by manufacturing the outer housing with a hollow space via at least one housing opening, preferably with a smaller dimension from the outside than the length and / or width of the hollow space is accessible, and introducing a mineral-based filling material in pourable or flowable form and an inorganic binder via the at least one housing opening to form the filling.

The invention therefore provides a method for producing fire protection doors or similar fire protection closures, in which method a housing of the building closure wing is filled with really loose mineral wool or other debrisable, flowable and / or isolated mineral-based insulating material.

The filling material (insulating material) is supplied or provided in a flowable form, in particular in bulk form, preferably without a binder, for example in a silo. Such a silo contains, for example, mineral wool as it is spun. This loose filling material is then blown into the hollow housing of the fire protection building end wing by means of a fluid, such as compressed air, using a device. When the mineral insulating material composed of granular or fibrous debris is introduced, an inorganic binder is preferably added at the same time.

In the fire tests carried out by the applicant, it was recognized that the failure of the known fire protection doors is often due to the development of flammable gases from the organic binders of the mineral wool mats previously used. These flammable gases escaped the well-known fire protection door leaves on the side facing away from the fire in the fire test and ignited, which led to a flame escaping on the side facing away from the fire and thus causing the door to fall through in the fire test. In contrast, if an inorganic binder is used to bind the particles of the mineral insulating material, this does not lead to burning. As a rule, inorganic binders can also withstand much higher temperatures than organic binders currently used in the mineral wool mats available on the market, and which begin to volatilize at temperatures of around 150 ° C. Due to the special type of filling by blowing in loose filling material with the simultaneous addition of binders, the manufacturing process is independent of the shape of the supplied mats. You can fill all types of fire protection end wings (eg fire protection door leaves, fire protection door leaves, fire protection flaps) from a storage container. The complicated internal and external logistics for supplying the manufacturing device with suitable insulating mats is eliminated. There is also no need for special productions of mineral wool mats and the storage facilities necessary to store them. You are not dependent on whether the filler plates are cut out or notched somewhere. You simply fill in the remaining cavity of the outer cladding of the building wing. The invention provides methods of filling such as an injection method or an injection method. In another technical field, mineral fibers are already used for ceiling cladding by injection molding. With such a method intended for ceiling cladding, one could also fill the wing housing of a fire protection end wing in a correspondingly modified and modified form.

With the method according to the invention, one is not only independent of the door sizes and independent of the door thicknesses, one can also change the amount of the filling material to be introduced into the housing by means of the corresponding processing method. This gives you the opportunity to influence the density of the insulation layer in the door during manufacture. Even if special internals are provided in the interior of the fire protection end wing, no further work needs to be carried out on the filling material. The filling material simply takes on the shape of the cavity to be filled. It is also possible to first produce the housing in the desired shape, for example, to produce the lid and the box of the door leaf in one step. The housing opening does not have to be so large that a preformed mat can be passed through. It is sufficient, for example, to leave a small opening on the underside or another narrow side for introducing the loose filler material and the binder, which after filling is hardly noticeable and / or (also visually appealing) can be closed. The inorganic binder added to the filler has the further advantage that it also serves as a binder between the filler and the outer housing. Additional fixations or misalignments are unnecessary.

Processes for producing a door or gate leaf are already known from EPO 280 306 A1 and from BE-A-571 576, in which a housing formed from sheet metal is used of the wing encloses a cavity that is completely foamed with a plastic foam. For this purpose, however, plastic foam materials are used on a known organic basis (e.g. PU sponges), which are completely unsuitable for forming a fire protection closure. In addition, such plastics naturally also contain organic binders, which would lead to fire failure if the door or gate wings produced in this way were subjected to a fire test.

In the method according to the invention, on the other hand, a filler material based on mineral substances is introduced into the cavity of the building end wing with the addition of an (inorganic) binder in a swirling or foaming manner.

This is preferably done by blowing or injecting the loose filler material and adding the binder through the at least one housing opening into the cavity. By blowing or injecting, the loose filling material is swirled immediately, which leads to air pockets or other cavities within the filling material that will later develop. These air pockets or cavities are used for thermal insulation as in the known mineral wool mats.

In order to introduce the filling material evenly into the cavity, the filling material is preferably blown in through a pipe, hose or the like. The tube is inserted into the at least one housing opening in the cavity of the building end wing. The tube is inserted so far that it extends close to the edge of the cavity opposite the housing opening. During the filling process, the tube is then slowly pulled out of the housing opening, leading through the cavity. In this way, the entire cavity can be filled evenly. In the case of further extended building end wings, such as particularly wide doors or gates, a plurality of such pipes, for example a battery of pipes arranged in parallel, can be inserted into a corresponding row of housing openings and slowly withdrawn again in a corresponding manner.

A bulk material is preferably used as the filling material, which is made from temperature-resistant, poorly heat-conducting, fire-insensitive minerals. For example, the filler material is made up of molten minerals in bulk. The bulk material formed in this way is preferably in the form of loose mineral fibers or mineral grains from the molten mineral. Examples are loose spun glass or rock wool, loose glass fibers or loose glass beads made of blown glass. The glass ball- Chen could also be hollow inside. The same applies to mineral grains from other molten minerals.

The inorganic binder should preferably offer essentially two advantages:

1. As an inorganic binder, it does not cause burning.

2. It should withstand higher temperatures.

A water glass or a ceramic-based adhesive can be used as an inorganic binder. Such adhesives are available on the market in the form of high-temperature-resistant adhesives, casting compounds or coatings, which are made from ceramic, refractory materials such as silicon dioxide (SiO ₂ ), aluminum oxide (AI ₂ O ₃ ), zirconium oxide (ZRO ₂ ), magnesium oxide (MgO) , Mica and aluminosilicates mixed with water or mixed before use. These pastes form high-temperature-resistant adhesive bonds during curing.

The use of water glass in the inorganic binder or as an inorganic binder is particularly preferred. In known fire protection constructions, additional materials that emit moisture when heated are introduced. Water glass is one such material that splits off water at higher temperatures. Such additional coolants can be saved through the use of water glass or other moisture-releasing inorganic binders.

On the other hand, the method according to the invention can also be used to introduce such additional coolants in a simple form and very uniformly into the interior of the housing, more precisely into the filling, namely at least during or before the filling material formed from the filling material and the inorganic binder is introduced Another pourable or flowable additive that contains moisture such as water for release under the influence of heat is added. This is then swirled with the filling material and thus introduced evenly into the cavity.

Another advantage of the method according to the invention is that when mineral fibers are used as filler, the mineral fibers are no longer arranged in one direction or arranged in layers, as is customary in the prior art, but rather lie whirled inside the fire protection building end wing. Due to this total turbulence, the filling material is also glued with which the surrounding housing wall function better than what has been tried to date in the prior art.

The invention therefore provides for the production of fire protection door leaves or the like fire protection building end wings:

a) Manufacture of a fire protection wing housing, for example a door leaf housing and b) Introducing, in particular blowing in or injecting loose insulating wool or other pourable or flowable filler material based on minerals, in particular loose mineral wool or bulk material made of blown glass, which is, for example, fibrous and / or grained, into the cavity of the case. If appropriate, the introduction takes place with the addition of an inorganic binder, such as, in particular, water glass or sodium silicate, in particular an inorganic binder which releases moisture under the influence of temperature.

Instead of mixing the filling material and possibly other additives only during the introduction, the procedure could also be such that a flowable or pourable mixture is immediately stored. For example, loose mineral wool or granular glasses could be mixed with an inorganic powder that acts as a binder when water or other solvents are added. It is also possible to stock the backfill as a type of paste or in another flowable form, which paste or other fluid z. B. could also have a foaming agent in order to form the cavities which are advantageous for the insulating effect within the fiber material or other mineral material within the housing cavity. In principle, it is sufficient to add the binder if the individual particles of the filler material are wetted with the inorganic binder or if they are sprayed into the cavity, they pass through a corresponding spray mist of the inorganic binder introduced at the same time.

The larger the cavity to be filled, the greater the risk that the filling material will be distributed inhomogeneously when it is introduced or during subsequent drying or curing. It is therefore provided according to one embodiment that the cavity to be filled is divided into several sections. For this reason and in order to achieve the flatness of the building end wing, a particularly preferred embodiment of the invention provides for bars, preferably made of insulating material, to be introduced before the blowing or injection of the filler material, in particular before the assembly of the housing, which then then with the Housing inner wall surfaces are glued to both broad sides of the cavity. This enables you to control the thickness of the housing end wing and prevent bulging of the wide surfaces when blowing in, or at least to reduce it considerably. The individual cavities formed between these rods are then filled with the filling material.

If these bars are used as spacers - in principle, spacers in other shapes would also be possible - the plate shape of the door is reinforced. The spacer in which the filler material is to be introduced is also limited in a simple manner by such spacers in order to securely apply the material uniformly and with the same density over the entire height of the building end wing. The adhesive added when the filling material is blown in has the advantage that the filling material then introduced does not shake down over time as the door opens and closes, as could happen with loose cotton wool. The building end wing preferably comes to or after being blown into a press in which it is pressed into the desired shape or held in the desired shape until the filling material is dry on the inside. The curing or drying time can be influenced by selecting the inorganic binder or its additives.

After the manufacturing process, the fire protection building end wing again contains - as in the prior art - an insulating plate or insulating mat made of mineral material. There is no loose debris inside the housing, the material becomes plate-shaped again, but you no longer need any prefabricated panels or mats to fill the building end wing.

This is also a significant manufacturing advantage, because according to the state of the art you have to order the panel, it has to be delivered somewhere, specifically for the type and size of building you want, for the thickness, width and height you want. With the invention, these dimensions of the building end wing are unimportant for providing a filling, since the production of the filler plate or filler mat takes place within the cavity of the building wing closing housing while adapting to its inner shape. An asbestos-free calcium silicate material, such as that sold by Calsitherm Silikatbaustoffe GmbH, D-33175 Bad Lippspringe, could be used as the material for reinforcements or spacers within the cavity, for example the insulating rods mentioned above. Materials with more than 95% (CaO-; MgO-; AI ₂ O ₃ -) silicate are well suited. Strips of such material have sufficient strength on the one hand, on the other hand they are easy to glue and chemically ingressive, so that they cannot cause any corrosion on the metal walls of the housing. These are the most important criteria for the selection of reinforcing bar materials.

According to one embodiment, the loose filler material, for example mineral fiber material, is introduced by injecting, blowing in or otherwise introducing under pressure in a swirling or foaming manner through an opening in the housing, which is preferably located on one of the narrow sides of the building end wing.

The opening is located on the underside in accordance with an embodiment of the fire protection end wing according to the invention, which is designed as a fire protection door leaf.

There is a thick U-profile for some fire protection doors, as have already been manufactured by the applicant. The underside also lies outside the visual appearance of a door leaf used as intended, so that the housing opening for introducing the filler material can be introduced there without any optical impairment. A hole, for example of approximately 30 mm in diameter, depending on the size of the door leaf, is also made in each spacer bar running transversely to the direction of insertion through the housing opening. The tube is then inserted through the housing opening and these holes up to practically the end of the building end wing opposite the housing opening. The pipe is slowly pulled back and the filling material is blown out. According to one exemplary embodiment, ventilation bores are arranged on the side opposite the housing opening, for example the upper end face or narrow side, as a ventilation device for the escape of the blown-in air or the other gases introduced as carrier fluid. Compressed air is preferably used as the carrier fluid. According to a further exemplary embodiment, the carrier fluid escapes at the same end at which the housing opening is also introduced. Instead of a tube, a flexible hose could also be used, which can also be moved transversely to the direction of insertion in order to achieve a better distribution. It would also be conceivable to provide an elongated insertion opening, for example also to leave one of the end faces completely open, in order to permit movement of the insertion device (for example of the tube mentioned above) transversely to the insertion direction. The end of the tube or hose provided with the blow-out opening could thus also be guided in a serpentine manner through the cavity to be filled.

Except for the ventilation openings, the building wing is preferably closed on three sides on its narrow sides. Thus, the housing cavity is preferably closed on all sides except for the ventilation opening and the housing opening.

In addition to the binder, the process according to the invention can also be used to introduce further additives, for example granules which store crystalline water, e.g. made of or with aluminum hydroxide. The amount of the substances or additives to be introduced can be regulated - also in some areas - by means of a separately controlled mixing head. This means that individual areas within the door can be filled individually to meet the desired requirements.

Pourable materials that meet the fire protection requirements or other requirements for the insulating material come into consideration as filling materials. Bulk materials made of glass materials are well suited, e.g. from glass fibers or glass beads, in particular from fibers and / or grains, beads from blown glass. Bulk glass made of expanded glass is also recommended due to the general requirement that building closures such as fire doors should not be too heavy.

Spacers within the wing, for example rods made of insulating material, preferably extend in the vertical direction. The spacer bars are, for example, undercut, provided with a recess, a recess on their retaining web, as shown in the figures. The spacer bars thus have, for example, a double T profile. This has fire protection advantages. Many insulating materials have the tendency to shrink under heat (e.g. due to water loss). Due to the undercut, however, no gaps running smoothly, for example at the interface between the spacers and the insulating material, which would negatively influence the heat transfer can occur. The distances between the distance Holder rods are to be chosen arbitrarily so that the surface of the door leaf has a smooth appearance, for example approx. 190 mm distance.

The method according to the invention can thus be used to produce a fire protection building end wing, for example a fire protection door leaf, with an outer housing, which is formed in particular from sheet metal, the housing enclosing a filling, preferably in the form of a plate, made of minerals with binder. This filling is formed from a swirled or foamed mixture of a granular or fibrous form of filler material made from molten minerals with an inorganic binder, although other additives may also be present but need not be present. For example, additives can be included that give off moisture under the influence of heat. The interior of the housing is preferably supported and / or subdivided by spacers such as the insulating rods and / or separating rods mentioned above. The separating bars are preferably designed as double-T profiles. The filler material can be easily introduced into the undercut area formed in this way and positively connected to the dividing bars.

The device according to the invention for producing the fire protection end wing contains, in addition to conventional devices for producing or providing a housing of the type mentioned above, in particular an outer housing made of sheet metal, a storage container for debris or flow material, in which the filling material is contained, that contains grains or fibers made from minerals. Furthermore, an insertion device is provided with which the filling material can be blown or injected into a cavity of the building end wing housing.

A binder addition device is preferably also provided, which adds an inorganic binder to the filler material to be introduced. Such a binder addition device can be dispensed with if the filler material contained in the storage container is already mixed with such an inorganic binder. Furthermore, a filling material feed line is provided, with which the filling material can be guided from the storage container to the introduction device.

In a preferred embodiment, the device further contains an additive addition device, a metering device, an automatic process control, a controllable mixing head and / or a carrier fluid supply device. With the additive addition device, additional additives can be added in a metered manner, if necessary, in particular under the influence of heat. The quantity and the flow rate of the filler material that can be introduced can be adjusted by means of the metering device and thus the density of the filler material can be adjusted. The amount of inorganic binder added to the filling material and the amount of other additives can be set via the controllable mixing head. A compressed air source, for example, serves as the carrier fluid supply device. With a carrier fluid such as compressed air - or, depending on the type of material to be introduced, liquid carrier fluids - the filling material, which is formed from filler material, inorganic binder and, if necessary, additives, can be blown or injected into the building wing housing.

Exemplary embodiments of the invention are explained in more detail below with reference to the attached figures. It shows:

Figure 1 is a schematic view of a device for filling a housing of a fire protection building wing with mineral fiber material.

Figure 2 is a front view of a fire door panel as an example of a building wing to be filled.

3 shows a plan view of the door leaf;

4 shows a section through the door leaf according to A-A in Fig. 2.

Fig. 5 is a bottom view of the door panel;

6 shows a longitudinal section through the door leaf during the filling process;

7 shows a plan view of a further embodiment of a door leaf;

FIG. 8 shows a sectional side view of the door leaf according to FIG. 7;

Fig. 9 is a sectional bottom view of the door panel of Fig. 7;

FIG. 10 shows a view of the detail X from FIG. 9; FIG. 11 shows a view of the detail Y from FIG. 8; and

Fig. 12 is a schematic view of another device for filling a

Building enclosure with insulating filling material.

1 shows a device for filling a building closure housing wing with filler material formed on the basis of minerals. This filling device is part of a system for the production of building end wings such. B. a plant for the manufacture of fire door panels. This system is not shown in particular, but contains conventional devices for metal processing in order to produce a housing of a fire protection door leaf as shown in FIG. 2 and explained in more detail later.

The filling device according to FIG. 1 comprises a debris or flow material storage container in the form of a silo 1, in which loose mineral wool 2 is contained as a filling material in a spun state without a binder. Mineral wool is a term used to refer to fibrous materials made from, in particular, molten minerals, such as glass wool, rock wool or basalt wool. Instead of mineral wool, other mineral fibers that are available in bulk can also be used as filling material. In further exemplary embodiments, the filling material is made of e.g. B. melted minerals produced granules, for example a bulk material from glass beads made of blown glass.

The filling device furthermore has a filling material supply line in the form of a mineral fiber line 3, which is provided with a compressed air pumping and blowing mechanism 3a serving as a carrier fluid supply device. The mineral fiber line 3 opens into a tube 4 for introducing the mineral fiber material into a door leaf. A supply line also opens to the tube 4, which is connected at the other end to a container 5 for inorganic binder. The container 5 is filled with inorganic binder in the form of sodium silicate or water glass 6 in the liquid or dissolved state.

In the following, the housing 7 of a fire protection door leaf, which is manufactured on the door leaf manufacturing system and made available for filling by means of the filling device, is discussed in more detail with reference to FIGS. 2 to 5. The housing 7 is an internally hollow sheet metal housing. Bars 8 are arranged across the sheet metal housing for supporting the metal broad sides and for separating filling fields of the cavity within the sheet metal housing 7. In the exemplary embodiment shown in FIGS. 2-6, the rods 8 run in the horizontal direction when the arrangement is as intended. door leaf. As shown in FIG. 3, the upper end face 9 is provided with a plurality of ventilation openings 10. 4, each rod 8 is provided with an opening 11 in the middle for the passage of the tube 4. On the lower end face, the sheet metal housing 7 has an end in the form of a lower U-shaped end profile 12, which is also provided with the central opening 11 for the passage of the tube 4. Except for the ventilation openings 10 and the opening 11 in the end profile 12, the cavity to be filled formed in the housing 7 is closed on all sides. As can be seen from FIG. 6, the tube 4 is guided across all openings 11 up to close to the upper end of the housing 7. By means of the compressed air pumping and blowing mechanism 3a, the loose mineral wool is now blown into the interior of the housing 7 through the tube 4 with the addition of the sodium silicate or water glass 6. The compressed air escapes through the ventilation openings, as indicated at 14. Due to the blowing in under pressure, the individual mineral fibers are strongly intermingled. They are wetted with the water glass 6 and thus form a whirled-up, adhesive mass. The tube, as indicated by an arrow in FIG. 6, is slowly pulled downward out of the housing, so that all of the filling fields separated by the rods 8 are successively filled by the filling material 13 formed from mineral fiber wool with binder. The housing 7 is then fed to a press, where the hardening process of the filling material takes place. After the inorganic binder (water glass 6) has dried out and hardened, the filling material 13 is in the form of a mat in the cavity of the housing 7.

FIGS. 9-11 show a further exemplary embodiment of a fire protection door leaf 16 filled with the filling material 13. In this, rods 8 'acting as spacers and separations are arranged in the fire protection door leaf 16 not in the horizontal but in the vertical direction. In the lower U-shaped end profile 12 'there are a plurality of openings 22 for introducing filler material, one opening 22 per filling field separated by the rods 8'. As can be seen from FIGS. 9 and 10, the metal housing 19 to be filled (see also FIG. 8) is formed, among other things, by the metal sheets 20 and 21 forming the broad sides, which are connected to one another by the rods 8 ′. The rods 8 'consist of calcium silicate, have a double-T profile with undercuts 23 and are glued to the metal sheets 21 and 20, respectively. The metal sheets 21, 20 can be connected to one another at the top edge and on the side as described and described in EP 0 733 149 B1. A filling of the housing 19 shown in FIGS. 7 to 11 takes place either by successively filling each of the filling fields separated by the bars 8 ′ by means of the single tube of the filling device shown in FIG. 1, or by an ensemble of several tubes 4 arranged parallel to one another which can be inserted and removed at the same time through the openings 22 in the end profile 12 '.

FIG. 12 shows a filling device with such a set of tubes 4. The filling device has a storage container 24 for pourable insulating and insulating material based on mineral substances, which is filled here with grains and / or fibers made of blown glass as filling material 25. This reservoir 24 has a metering valve 26 as a metering device for metering the filling material 25. A pressurized carrier fluid (e.g. compressed air) flows into a line 28 for the insulating bulk material by means of a pressure medium source 27 serving as a carrier fluid supply device, such that it carries along the filler material 25 metered from the reservoir 24 via the metering valve 26 and through line 28 to one controllable mixing head 31 conducts. A further line to the controllable mixing head 31 is a connecting line to the container 5 for inorganic binder with the sodium silicate or water glass 6 contained therein in a liquid or dissolved state. The term water glass denotes in particular solidified, glassy, water-soluble (potassium or sodium) from melt casting ) Silicates or their viscous, aqueous solutions with the chemical composition Me ₂ O • nSiO ₂ , where Me is mostly sodium or potassium, but also lithium, NH ₄ with n = 2 ... 4. Another supply line to the controllable mixing head 31 is connected at the other end to a container 29 for additive 30 such as, in particular, aluminum hydroxide granules.

The output of the controllable mixing head 31 opens into a controllable distributor head 32, which directs the mixture formed in the mixing head 31 onto the plurality of pipes 4 for filling the fire protection wing 33. An automatic process control 34 is used to divide and control the individual devices 26, 27, 31, 32.

The reference symbols denote:

1 silo with loose mineral wool

2 loose mineral wool in a spun state without binding agents

3 Mineral fiber line with compressed air pump and blowing mechanism 4 Pipe for introducing the mineral fiber material into a door leaf

5 containers for inorganic binder Sodium silicate or water glass (liquid or dissolved state) inside a hollow sheet metal housing of a door leaf, 8 'rods for supporting the metal broad sides and for separating filling areas in the housing 7 upper front side 0 ventilation openings 1 opening for passing the pipe 4 2, 12' lower U-shaped end profile 3 mineral fiber wool with binding agent 4 escaping compressed air fire protection door leaf 7 lock 8 hinges 9 metal housing 0 metal plate 1 metal plate opening for inserting insulating material 3 undercut storage container for pourable insulating and insulating material grains and / or fibers made of blown glass dosing valve, dosing discharge device pressure medium source (carrier fluid source) line for insulating bulk material in the carrier fluid flow container for additive additive, e.g. aluminum hydroxide granulate 1 controllable mixing head distributor head, if necessary controllable building closing wing automatic process control

Claims

claims 1. Method for producing a fire protection building wing (33, 16), in particular a fire protection door leaf (16), with an outer housing (7, 19), in particular made of sheet metal, which is made of mineral materials (2, 25) with a binder (6) formed filling (13) encloses, characterized by Manufacture of the outer housing (7, 19) with a cavity which is accessible from the outside via at least one housing opening (11, 22), preferably with a smaller dimension than the length and / or width of the cavity, and Introducing a filler material (2, 25) on a mineral basis in pourable or flowable form and an inorganic binder (6) via the at least one housing opening (11, 22) to form the filling (13). 2. The method according to claim 1 characterized by The loose filler material (2, 25) is blown into or injected into the cavity via the at least one housing opening (11, 22) while adding the inorganic binder (6). 3. The method according to claim 2, characterized in that the filling material is blown through (2, 25) a pipe (4) which is blown into the door leaf housing (7, 19) or the like building via the housing opening (11, 22) or the like. closing housing is inserted and slowly withdrawn during the blowing process to evenly fill the cavity. 4. The method according to any one of claims 1 to 3, characterized in that bulk material (2, 25) made from temperature-resistant, poorly heat-conducting, fire-insensitive minerals is used as the filling material. 5. The method according to any one of claims 1 to 4, characterized in that the filling material is formed from molten minerals in loose, fibrous or granular form, from loose mineral wool products (2) or mineral fibers, from loose spun glass or rock wool, loose glass fibers or loose Glass beads (25) made of blown glass. 6. The method according to any one of claims 1 to 4, characterized in that a ceramic-based adhesive containing silicon dioxide, aluminum oxide, zirconium oxide, magnesium oxide, mica, sodium silicates, potassium silicates or aluminosilicates is used as the inorganic binder. 7. The method according to any one of claims 1 to 6, characterized in that the inorganic binder contains or is water glass (6). 8. The method according to any one of claims 1 to 7, characterized by Adding at least one further flowable or flowable additive (30) to the filling material (13) formed from the filler material (2, 25) and the inorganic binder (6) during or before the introduction, which additive (30) moisture, such as water, for Includes heat release. 9. The method according to any one of claims 1 to 8, characterized in that a prefabricated mixture of the filling material (2, 25) and the inorganic binder (6) and optionally one or more further additives (30) in a swirling or foaming manner by the Housing opening (11, 22) is introduced into the cavity. 10. Fire protection building end wing (33, 16), in particular fire protection door leaf (16), with an outer housing (7, 19), in particular made of sheet metal, which encloses a filling (13) formed from minerals (2, 25) with binder (6), characterized in that the filling (13) is formed from a swirled or foamed mixture of a filling material (2, 25) in granular or fibrous form made from molten minerals with an inorganic binder (6). 11. Fire protection building closing wing according to claim 10, characterized in that the filling has an additive (30) which releases moisture under the action of heat. 12. Fire protection building closing wing according to one of claims 10 or 11, characterized in that an interior of the housing (7, 19) containing the filling is supported and / or divided by spacers (8, 8 ') and / or separating bars. 13. Fire protection building wing according to claim 12, characterized in that the separating bars (8, 8 ') undercut, in particular double T-shaped, are formed. 14. Device for producing a fire protection building end wing (33, 16), in particular a fire protection door leaf (16), with an outer housing (7, 19), in particular made of sheet metal, which is a filling formed from minerals (2, 25) with binder (6) (13), with a device for producing the outer housing (7, 19), characterized by a debris or flowable material storage container (1, 24) for grains (25) or fibers containing filler material (2, 25) and one Introducing device (4) for pouring, blowing or injecting the filling material (2, 25) into a cavity of a housing (7, 19). 15. The apparatus according to claim 14, characterized by a filler feed line (3,28) for feeding the filler (2, 25) from the debris or flowable container (1, 24) to the introduction device (4) and a binder addition device (5) an inorganic binder (6) is added to the filling material (2, 25) to be introduced. 16. The device according to one of claims 14 or 15, characterized by an additive addition device (29) for adding and / or metering at least one, in particular under the action of moisture emitting additive (30), a metering device (26) for metering the filling material, an automatic Process control (34), a controllable mixing head (31) and / or a carrier fluid supply device (3a, 27) for providing pressurized carrier fluid, by means of which the filling material (2, 25) or a filling material mixture (13) to be introduced made of filling material ( 2, 25), inorganic binder (6) and optionally additives) (30) can be blown or injected into the housing (7, 19).