JP3033602U - Lightweight portable fireproof storage - Google Patents

Abstract

(57) [Summary] [Purpose] One hour for general paper, which is the most widespread in light-weight, small, portable fire-resistant storage for storing valuable materials and floppy disks or valuables for personal or business use. The purpose is to safely and reliably perform the function by storing it in a fireproof storage room of a fireproof level, to reduce the overall price and to greatly improve the fireproof performance. [Structure] A lightweight portable fire-resistant storage having an outer surface made of a metal plate or a synthetic resin composite material coated with a fire-resistant foam paint and an inside made of a laminate of an inorganic foam and a synthetic resin foam.

Description

[Detailed description of the invention]

[0001]

[Industrial applications]

 The lightweight portable fireproof storage according to the present invention stores floppy disks, important materials, valuables, etc. and stores them in the fireproof storage. Lightweight, safe and secure personal portable or commercial fireproof storage. It provides a warehouse.

[0002]

[Prior art]

 In the Great Hanshin Earthquake, valuable materials and properties could not be protected from a fire simply by storing them in a fireproof safe, and carbonization and discoloration were often seen in the fireproof safe.

A fireproof safe is called a fireproof warehouse, and JIS standard S1037 of the fireproof warehouse is for general paper, magnetic tape, and flexible disk cartridge depending on the contents and structure. 1 hour fire resistance, 2 hour fire resistance, 3 hour fire resistance performance. There is a division. The maximum temperature is set to 925 ° C for 1 hour fire, 1010 ° C for 2 hours fire and 1050 ° C for 3 hours fireproof. The internal temperature of the fireproof cabinet at that time is 180 ° C or less for ordinary paper and 65 ° C for magnetic tape. It is stipulated that the internal humidity is 85% or less below ℃, the flexible disk cartridge is 52 ° C or below, and the internal humidity is below 80%.

In order to safely and reliably protect a floppy disk or the like from a fire, it is necessary to withstand fire for 3 hours, and the internal temperature must be 52 ° C. or less with respect to the external temperature of 1050 ° C., which is very expensive. Become. For this reason, it is not possible to obtain it easily, and in recent years, a large amount of important floppy disks have not been protected at home or for business use.

[0005]

[Problems to be solved by the invention]

 In order to solve the above problems, the present invention creates a lightweight and small portable fireproof storage cabinet for storing valuable personal or business materials, floppy disks, or valuable assets. By storing the refractory storage cabinet for refractory as it is, the refractory cabinet can perform its function sufficiently even if it is a relatively cheap one-hour refractory for general paper, and the overall price is reduced. The objective is to be lightweight and to significantly improve fire resistance.

[0006]

[Means for Solving the Problems]

 The present invention has been made to solve the above problems, and the outer surface is made of a metal plate material or a synthetic resin composite material coated with a fire-resistant foam paint, and the inside is made of a laminated body of an inorganic foam and a synthetic resin foam. . The synthetic resin composite material is preferably flame-retardant or non-flammable, and when it is flame-retardant, it has a heat insulating property by being carbonized after combustion.

As the non-combustible synthetic resin composite material, a glass fiber / aluminum hydroxide mixed phenol resin foam plate is used. The inorganic foam is preferably a ceramic foam, and particularly preferably one that allows air to pass through but blocks heat. As such, a ceramic composition and / or a ceramic material containing a material having a compressive strength of 600 kgf / cm ² or more, a bulk specific gravity of 0.3 to 0.5 g / cm ³ , and a melting point of 1500 ° C. or more of ceramic fine hollow particles as a fluxing agent. A foam ceramic molded plate bonded with a melt of the composition is used.

[0008]

[Action]

 The fire-resistant foam coating applied to the outer surface of the lightweight portable fire-resistant storage is applied to a coating thickness of about 1 to 3 mm to form a carbonization barrier layer of several tens of mm in the event of a fire. The foam layer is composed of four main materials: a catalyst such as ammonium polyphosphate, a carbon source, a resin or binder, and a foaming agent. It protects the outer surface of a lightweight portable fireproof storage cabinet from the heat of fire. is there.

In the case of the outer surface metal plate material, stainless steel, steel plate, aluminum or the like can be used. Stainless steel is the best in terms of durability, but aluminum is suitable for weight reduction. The thickness of the metal plate material is in the range of 0.1 to 3.2 mm.

When a synthetic resin composite material is used for the outer surface, it is a flame-retardant material, for example, a 3 to 4 mm thick double-sided aluminum plate-clad polyethylene resin plate, urethane resin-mixed stone plate, vinyl chloride sheet lined rock wool A plate, a natural crushed stone powder molding material PVC sheet, a vinyl chloride resin foam plate containing aluminum hydroxide, a calcium carbonate vinyl chloride resin foam plate containing fiber, or the like can be used. When using a non-combustible synthetic resin composite material on the outer surface, use a phenolic resin foam plate mixed with glass fiber and aluminum hydroxide.

The inside of the lightweight portable fireproof storage has a structure in which an inorganic foam, a synthetic resin foam and an inorganic foam are laminated in this order in contact with the outer surface, and the inside surface of the lightweight portable fireproof storage has a synthetic resin foam. It is the body. The entire inner surface of the lightweight portable fireproof storage cabinet is formed of 5-20 mm flame-retardant soft polyurethane resin foam to improve the barrier performance and prevent damage to the floppy disk to be stored.

[0012] Examples of the inorganic foam that constitutes the inside of the lightweight portable fireproof storage include lightweight foam concrete, silica-containing foam cement plate, ceramic foam, shirasu-perlite mixed foam glass plate, black stone foam plate, and foam. A polystyrene cement-containing aerated cement plate can be used, but it is more preferable to use ceramic fine hollow particles having a compressive strength of 600 kgf / cm ² or more, a bulk specific gravity of 0.3 to 0.5 g / cm ³ and a melting point of 1500 ° C or more as a fluxing agent. It is a foamed ceramic molded plate joined by a melt of a ceramic composition containing materials and / or a porcelain composition.

The ceramic fine hollow particles used in the present invention have particularly high compressive strength as compared with the conventional fine hollow foams, and can withstand the high stress and shearing force generated in the process of manufacturing the foamed ceramic molded body. Is what you can get. Further, by pressure molding, it is possible to obtain a dense foam ceramic molded plate despite its light weight.

The compressive strength of the fine hollow foam is synonymous with the hydrostatic strength, and the compressive strength is measured by pressurizing the fine hollow foam in water and transmitting the pressure applied to the water to the fine hollow foam. The pressure at which the hollow foam breaks is the compressive strength.

A foamed ceramic molded plate capable of exhibiting excellent performance must have a sufficient kneading step, and is particularly important for a foamed ceramic molded plate of a uniform product and of good quality. When sufficient kneading is performed, it is said that the stress and shearing force applied to the ceramic fine hollow particles during the kneading will be about 400 kgf / cm ² . There is no conventional fine hollow foam that can withstand such high pressure and most of it breaks. Therefore, there was no one that could be used as such a foamed ceramic molded plate and had sufficient performance.

Next, when the ceramic fine hollow particles are used in the foamed ceramic molded plate, the important factor is the thermal conductivity. It depends on the particle size of the fine hollow foam, but is generally around 0.1 (kcal / mhr ° C.), and when half of the filled fine hollow foam is destroyed, the thermal conductivity is about 0.2 (kcal / mhr ° C). mhr ° C). An excellent effect can be obtained only when a perfectly fine hollow foam which is not broken is used. The ceramic fine hollow particles used in the present invention have significantly higher compressive strength than conventional fine hollow foams such as silica balloons, glass balloons, silica balloons, and fly ash balloons. The hollow body is 100% complete. Incidentally, the compressive strength of the conventional fine hollow foam is 80 to 300 kgf / cm ² .

The melting point of the ceramic fine hollow particles used in the present invention is 1500 ° C. or higher. Naturally, the fine hollow ceramic particles are caused by their materials, but generally, the higher the melting point, the higher the compressive strength. If the compressive strength is 600 kgf / cm ² or more, the melting point is 1500 ° C. or more.

The foamed ceramic molded plate is formed by placing the slurry in a mold, pressure-molding, curing for a predetermined time, and then firing. The firing temperature is 700 to 1300 ° C., which varies depending on the melting point depending on the type of the ceramic composition or / or the ceramic composition containing the material to be the flux used. The ceramic hollow micro particles are joined at points and are firmly bonded. A ceramic composition or // ceramic composition containing a material serving as a flux is melted, and the ceramic fine hollow particles are fixed by this melt. However, the ceramic fine hollow particles should not be melted during firing, nor should the strength be lowered by heating. Therefore, the melting point of the ceramic fine hollow particles must be 1500 ° C. or higher.

As described above, the ceramic fine hollow particles used in the present invention are obtained by foaming a composition composed of 40 to 45% alumina, 50 to 60% silica, and 1.5 to 2.5%, and the physical properties thereof. Has a compressive strength of 700 kgf / cm ² , a melting point of 1600 to 1800 ° C., a bulk specific gravity of 0.3 to 0.5 g / cm ³ , and a thermal conductivity of 0.1 (kcal / mhr r ° C.) and is composed only of completely hollow particles. ing. The fine ceramic hollow particles have a particle size in the range of 12 to 350 μm, and are finely mixed to be 12 to 75 μm, medium to 75 to 150 μm, and coarse to 150 to 350 μm by adjusting the particle size. Bulk specific gravity is heavy for finer particles and lighter for coarse ones. Therefore, the range of bulk specific gravity is 0. It becomes ³ to 0.5 g / cm ³ .

The flux of the present invention is added with one or more of feldspar, limestone, magnesium carbonate, lime phosphate, lead oxide, boric acid, borax, sodium carbonate, sodium nitrate, zinc oxide and the like. The ceramic composition and / or the ceramic composition means B ₂ O ₃ , SiO ₂ , GeO ₂ , ZrO ₂ , P ₂ O ₅ , As ₂ O ₅ , Sb ₂ O ₃ , B i ₂ O ₃ , P ₂ O. ₃ , basic oxides such as Na ₂ O, K ₂ O, CaO, and MgO, Al ₂ O ₃ , Fe ₂ O ₃ , ZnO, Pb ₂ O, and TiO _{2 in addition to} acidic oxides such as ₃ , Sb ₂ O ₅ , and SO _3. And the like are added. For example _{SiO 2 -Na 2 O-B 2} O 3, SiO 2 -Na 2 O-CaO, SiO 2 -K 2 O-CaO, Al 2 O 3 - SiO 2 -Na 2 O-CaO-B 2 O 3, _{al 2 O 3 -SiO 2 -TiO 2} -C aO-B 2 O 3, CaO-SiO 2 -Al 2 O 3 -Fe 2 O 3, SiO 2 -Al 2 O 3 -K 2 either O or the like 1 Kaolin, plastic clay (frog eye clay, kibushi clay, ball clay, etc.), sericite, porcelain stone, wax stone, bentonite, silica stone, chamotte, feldspar, limestone, magne Used in combination with one or more of site, dolomite, wollastonite, talc, bone ash, etc.

[0021] The fine ceramic particles have fine, medium, and coarse particle sizes adjusted, and for 100 parts by weight, 10 to 300 parts by weight of a ceramic composition containing a material serving as a flux and / or a ceramic composition. Add. When the amount of the ceramic composition and / or the ceramic composition containing the material serving as the flux is 5 parts by weight or less, sufficient bonding cannot be achieved and the bonding strength between the ceramic fine hollow particles cannot be increased. On the other hand, when the amount is 300 parts by weight or more, the amount of melt in the foamed ceramic molded plate is too large to form the capillary air flow holes.

Since the ceramic fine hollows having high strength are joined to each other in the foamed ceramic molded plate, and this portion is firmly fixed by the welded body of the ceramic composition or / and the ceramic composition containing the material serving as the flux, It is lightweight, and the specific gravity of the foam ceramic molded plate is 0.5 to 0.7 g / cm ³ . Further, since the pressure is applied at 10 to 500 kgf / cm ² during molding, the foamed ceramic molded plate becomes dense and has high strength, and the compressive strength is 100 kgf / cm ² or more.

Since the ceramic fine hollow particles having high strength can be completely present in the foamed ceramic molded plate in the form of a hollow body, the ceramic fine hollow particles are fixed to each other by the point bonding so that the parts other than the point bonding are not bonded. It was found that there are innumerable capillary-shaped air circulation holes.

Due to the innumerable mesh-shaped capillary air circulation holes, air flows from the surface of the foamed ceramic molded plate even at a low air pressure of only about 1 kgf / cm ² . That is, the air from the surface flows not only to the back surface of the foam ceramic molded plate but also to the four circumferences of the foam ceramic plate. Especially in the case of high-heat air, most of it flows from the front surface in the upward and left-right directions and diffuses from the upper and left and right ends of the expanded ceramic molded plate, so the back-side temperature does not rise.

Therefore, even if a flame is applied to the surface of the foamed ceramic plate according to the present invention, high-heat air due to the flame flows evenly throughout the foamed ceramic molded plate. Therefore, the rise of the backside temperature is small and the whole foam ceramic molded plate acts as a heat dissipation plate.

As the synthetic resin foam that constitutes the lightweight portable fireproof storage internal laminate, a phenol resin foam plate, a hard polyurethane resin foam plate, or the like can be used.

[0027]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail.

Example 1 A 0.3 mm thick stainless steel thin plate was used on the outer surface, and a 2 mm thick fire resistant foam coating (“Narifa System S”, sold by Kakohki Shoji Co., Ltd.) was applied. A 5 mm thick foamed ceramic plate according to claim 3 of the present invention, and a 5 mm thick hard polyurethane resin foamed plate according to claim 3 of the present invention, and a 5 mm thick foamed ceramic plate according to claim 3 of the present invention are laminated on the inside thereof to make it lightweight and portable. The interior interior of the fireproof store was finished with a 10 mm thick soft polyurethane resin foam.

An upper lid type lightweight portable fireproof storage cabinet as shown in FIG. 3 was produced with the above-mentioned structure. This light portable refractory storehouse had an internal temperature of 50 ° C or lower even when left in an atmosphere of an external temperature of 300 ° C for 1 hour. Therefore, the lightweight portable fireproof storage cabinet according to the present invention can be safely stored in the most popular and popular one-hour fireproof cabinet for general paper, so that floppy disks, important materials, valuables, etc. Can be protected from fire.

Example 2 Instead of the stainless steel thin plate on the outer surface used in Example 1 with a 2 mm thick glass fiber / aluminum hydroxide mixed phenol resin foam plate, a light portable refractory storage similar to that of Example 1 was used. It was made.

[0031]

[Effect of the invention]

 As described above, the lightweight portable fireproof storage according to the present invention is lightweight and excellent in fireproof performance, and contains valuable personal data or floppy disks or valuable assets for business use and is used for the most popular general paper. Only by storing it in a relatively inexpensive refractory box that can withstand one hour of fire, it is possible to safely and reliably protect from fire.

[Brief description of the drawings]

FIG. 1 is a sectional view of a first embodiment.

FIG. 2 is a sectional view of a second embodiment.

[Figure 3] Lightweight portable fireproof storage cabinet created

[Explanation of symbols]

1. Fire resistant foam paint 2. Stainless steel sheet 3. 3. The foamed ceramic plate according to claim 3. Hard polyurethane resin foam board 5. 5. Soft polyurethane resin foam interior 6. Phenolic resin foam board mixed with glass fiber and aluminum hydroxide Lightweight portable fireproof storage

Claims (3)

[Utility model registration claims] 1. A lightweight portable fireproof storage characterized in that an outer surface is made of a metal plate material or a synthetic resin composite material coated with a fireproof foam paint, and an inside is made of a laminate of an inorganic foam and a synthetic resin foam. Warehouse. 2. The lightweight portable fireproof storage cabinet according to claim 1, wherein the synthetic resin composite material is a glass fiber / aluminum hydroxide mixed phenol resin foam plate. 3. The inorganic foam has a compressive strength of 600 kgf /
cm ² or more, bulk specific gravity 0.3-0.5 g / cm ³ , melting point 1
2. The lightweight ceramic molded plate according to claim 1, which is a foamed ceramic molded plate obtained by joining ceramic fine hollow lamellae of 500 ° C. or higher with a melt of a ceramic composition or / or a ceramic composition containing a material serving as a fluxing agent. Portable fireproof storage.