RU9457U1 - FIRE-RESISTANT HEAT-INSULATING COATING (ITS OPTIONS) - Google Patents

Abstract

(54) Fire-resistant heat-insulating coating (its variants) (57) The utility model relates to general-purpose building structures, in particular, coatings using fire protection equipment and can be used to protect metal supporting structures, ventilation systems and other objects in civil and military construction.

The purpose of the claimed utility model is to ensure the fire resistance of the insulating material and the convenience of attaching it to the protected structure.

The fire-resistant thermal insulation coating is made of mineral wool 1 in the form of a piercing mat or sheet without a lining or in a lining 5, 6 on both sides (depending on the embodiment). Layer 2 of fire-resistant enamel is applied on the outside of the mat / sheet or on the outer lining, and on the side of the attachment to the structure to be protected 7, an adhesive layer 3 and a layer 4 of heat-resistant adhesive. The lining can also be only on one side of the mineral wool material. When making mineral wool material in the form of a sheet, only a layer of heat-resistant adhesive can be applied to the latter from the side of the attachment.

The implementation of fire-resistant heat-insulating coating in the first embodiment of mineral wool impregnated with a fire-resistant solution, and in the second embodiment of mineral wool in a lining of fiberglass with impregnation of the material and the lining of a fire-resistant solution in conjunction with the application of a layer of flame-retardant enamel in both versions, and its fastening side - the adhesive layer and the heat-resistant adhesive layer provides high fire resistance of the coating due to fire-resistant impregnation, fire-resistant enamel (in the first embodiment), these same factors and noncombustible plate (second embodiment), and additional fire resistance and ease of attachment of the coating to the protected structure at the expense of the heat-resistant adhesive in both embodiments. 6 pp., 5 ill.

Description

FIRE RESISTANT

The utility model relates to general-purpose building structures, in particular, to coverings using means of their protection against knives and can be used to protect metal supporting structures, ventilation systems and other objects in civil and military construction.

Known fire-resistant coating described in a.z. Japan No. 3-16466 by class Е04ДЗ / 35, В32В15 / 15, з. 04/06/82, op. 03/05/91 Non-flammable roofing material from metal sheets and the method of its manufacture.

The known coating comprises a consecutive layer of thermosetting resin with anticorrosive additives, a primer layer, a paint layer of thermosetting or thermoplastic resin with flame retardants, a layer of coarse and fine-grained mineral particles and a paint layer of transparent thermosetting resin with flame retardants.

MKI-6: Е04В 1 / 02,1 / 94, Е04С 2/00 THERMAL INSULATION COATING (ITS OPTIONS)

The coating is intended for application on a metallic base,

however, it is technologically laborious since many layers of paint have to be alternated with layers of anticorrosion, primer and a layer of mineral particles.

Known fire-resistant thermal insulation coating for steel load-bearing structures, described in wz Japan No. 3-161635 The method of lining with fire retardant plates of a steel supporting structure according to cl. EB04 1 / 94.3. 21. 11.89, op. 07/11/91.

Known coating is a plate formed of an adhesive composition containing a mixture of hydraulic cement, an aqueous emulsion of a mixture of powdered synthetic polymer, powdered aluminum hydroxide, carbonate, lightweight aggregate and water, which after curing are glued to the surface of the column.

A disadvantage of the known coating is the complexity of its manufacture, consisting in the need for molding and curing of the plates, and the inconvenience of pasting them with columns.

The fireproof heat-insulating coating described in c. France No. 2680914 Method of thermal insulation of a building element according to class. ЕВВ 1/76, 1/94, С04В 35/36, з. 09. 08. 91, op. 12.02.93.

The known coating contains a mineral insulating material, which is in a pasty state and consisting of 4090% by volume of a microporous mineral binder. The curing of the applied roof cover is carried out as a result of the restriction

evaporation of water, which is originally in the insulating material.

A disadvantage of the known coating is the need to apply paste on a building element, which is rather laborious and inconvenient; in addition, the appearance of such a coating is unaesthetic.

Closest to the technical nature of the claimed is a thermal insulation coating described in GOST 21880-94 and selected as a prototype.

Known coating in one embodiment (brand Ml) is a forgiving mineral wool web and can withstand temperatures up to 700 ° C.

In the second embodiment, the known coating is a piercing fabric in the covering material in the form of fiberglass and can withstand temperatures up to 700 ° C.

Its disadvantage is that it is not fire resistant and it is inconvenient to attach it to the protected structure during operation.

The purpose of the claimed utility model is to ensure the fire resistance of the insulating material and the convenience of attaching it to the protected structure.

This goal is achieved by the fact that in a fireproof thermal insulation coating: - according to the first embodiment, it is made of mineral wool material,

according to a utility model, the material is impregnated with a fire-resistant solution, a layer of fire-resistant enamel is applied to it from the outside, and an adhesive layer and a layer of heat-resistant glue are applied on the fastening side; - according to the second embodiment, made of mineral wool material in a fiberglass lining, according to a utility model, the material and the lining are impregnated with a fire-resistant solution, a layer of fire-resistant enamel is applied to the outer lining, and on the fastening side - an adhesive layer and a layer of heat-resistant adhesive.

At the same time, mineral wool material can be made in the form of a piercing mat.

When this mineral wool material can also be made in the form of a sheet.

In addition, mineral wool material may be lined on one side only.

In addition, in a fire-resistant heat-insulating coating, when it is made in the form of a sheet without a lining, only a layer of heat-resistant glue can be applied on the fastening side.

The implementation of the fire-resistant heat-insulating coating in the first embodiment of mineral wool impregnated with a fire-resistant solution, and in the second embodiment of mineral wool in a glass cloth lining with the impregnation of the material and the fire-resistant solution lining in combination with application in both embodiments

And BKLAA, from the outside of the layer of fire-resistant enamel, and from the side of the fastening of the adhesive layer and the layer of heat-resistant glue, provides high fire resistance of the coating due to fire-resistant impregnation, fire-resistant enamel (in the first version), these same factors and non-combustible lining (in the second version) and additional fire resistance and ease of fastening of the coating to the protected structure due to heat-resistant adhesive in both versions.

Compared with the prototype, the claimed coating has a novelty, differing from it by the presence of such essential features as the impregnation of its elements in both versions with a fire-resistant solution, the presence of a layer of fire-resistant enamel on the outside of the coating, and an adhesive layer and a layer of heat-resistant adhesive on the fastening side, providing the desired result.

The inventive fire-resistant thermal insulation coating in both its variants can be widely used in the construction of residential buildings and industrial facilities, therefore, it meets the criterion of industrial applicability.

The inventive utility model is illustrated by drawings, which are presented on:

- FIG. 1 is a schematic cross-sectional view of a coating applied to a metal structure to be protected and made in the form of a piercing mat without facing;

Figure 2 is a schematic sectional view of a coating deposited on a protected metal structure and made in the form of a sheet without a lining;

-Fig.Z - is a schematic sectional view of a coating applied to a protected metal structure and made in the form of a piercing mat with a glass fabric lining on both sides;

-Fig. 4 is a schematic cross-sectional view of a coating applied to a protected metal structure and made in the form of a sheet with a lining on one side and without an adhesive layer;

-Fig. 5 is a schematic cross-sectional view of a coating applied to a metal structure to be protected and made in the form of a sheet without facings and without an adhesive layer.

The fire-resistant thermal insulation coating according to the first embodiment is made of mineral wool impregnated with a fire-resistant solution. From the outside, a layer of fire-resistant enamel is applied to the material, and from the fastening side, an adhesive layer and a layer of heat-resistant glue.

The fire-resistant thermal insulation coating according to the second embodiment is made of mineral wool material in a lining of fiberglass on both sides of the mineral wool material. The material and cover are impregnated with a fire-resistant solution. On the outside, a layer of fire-resistant enamel is applied to the outer lining, and an adhesive layer and a layer of heat-resistant glue are applied to the inside. In this case, the mineral wool material can be molded in the form

piercing mat or sheet.

In addition, mineral wool material may only be lined on one side.

In addition, when performing mineral wool material in the form of a sheet without a lining, only a layer of heat-resistant adhesive can be applied on the fastening side.

Almost fire-resistant thermal insulation coating can be performed, for example, as follows (see drawings).

Material 1 is made in the form of a knitting-piercing mat, in particular, from the MBVP-5 basalt material. It is stitched with a content of 12 ± 2 loops on a segment of 50 mm and is non-combustible; material thickness - 5 mm. The mat is impregnated with a fire-resistant solution, in particular from phenylsiloxane and phenol-formaldehyde resins. Impregnating solution is designed to increase the fire resistance of the coating. On the outside, mat 1 is covered with a layer 2 of fire-resistant enamel, and on the inside (fastening side), an adhesive layer 3 and a layer 4 of heat-resistant glue are applied to it. As fire-resistant enamel, for example, enamel according to TU UAO-1 is used. As heat-resistant adhesive is used, in particular, the adhesive described in the same application of the Russian Federation No. 93026295/05 by class. C09J 161/14, z. 05/14/93., Op. 10.0 (b 94 and tear off) The adhesive layer is made of the same adhesive, but diluted (more

liquid).

When performing a fireproof thermal insulation coating according to the second embodiment, the mineral wool material, for example, in the form of a piercing mat made of basalt fiber of the MBVP-5 brand, has a lining of 5.6 on both sides of fiberglass. Mat 1 and glass cloth panels 5, 6 are impregnated with the fire-resistant solution specified above. A layer 2 of the same fire-resistant enamel is applied on the outside of the outer panel 5, and an adhesive layer 3 and a layer 4 of said heat-resistant adhesive are applied on the outside of the inner panel 6.

The coating can be made with a lining of fiberglass on only one side.

The coating in the form of a piercing mat or piercing mat with a lining on both sides of fiberglass with a layer of fire-resistant enamel and a glue layer applied to it is rolled up and stored in a dry room with a relative humidity of not more than 85%. Before fixing the coating on the protected metal structure 7, the roll is expanded and a layer of liquid adhesive 4 is applied to the adhesive layer 3 and to the surface of the protected structure 7.

The coating can be made in the form of separate sheets, representing, for example, canvases of the brand BSTV-st made of superthin glass mixed up staple fibers, bonded to each other by forces of natural adhesion without a binder, impregnated

the above-mentioned fire-resistant solution n with a layer of fire-resistant enamel applied to them from the outside, and an adhesive layer and a layer of heat-resistant glue on the inside, as described above. The sheet may have, in particular, a thickness of 2 to 300 mm. For greater flexibility, the sheets are slightly corrugated and stored as sheets and rolls.

A glue layer may sometimes not be applied to such a sheet. Thin sheets are used, as a rule, without a lining, and thick sheets can be lined.

Fireproof thermal insulation coating is used as follows.

Before applying it to a protected supporting metal structure (for example, a support column), a layer 4 of heat-resistant adhesive is manually applied to it and to the adhesive layer 3 of the coating with a brush, and then, pressing the coating to the column, glue it onto the column. Moreover, the presence of an adhesive layer facilitates the application of a layer of glue. After gluing the coating and curing the adhesive, the metal structure 7 is protected from fire by means of a coating that can withstand temperatures up to 500 ° C for 2-3 hours.

This happens as follows. In the event of a fire, the flame-retardant enamel layer (up to a temperature of 800 ° С) is the first to take on the influence of the flame, then mineral wool material impregnated with a fire-resistant solution (up to 1100 ° С) and, finally, a layer of heat-resistant

glue (up to 2000 ° C). In this case, the enamel layer is initially swollen and carbonized, then the mineral wool material impregnated with a fire-resistant solution is carbonized in the form of a mat or sheet, and the layer of heat-resistant adhesive swells and charred last. The presence of a non-combustible lining of fiberglass also increases the time of the protective action of the coating. As a result, the fire-resistant coating does not allow a flame temperature of up to 500 ° С of a metal structure for 3 hours, allowing during this time to extinguish the fire and preserve the load-bearing capacity of the metal structure.

In comparison with the prototype of the inventive coating is fire resistant and more convenient to use.

Authors / O Ryabov SV

Matveev S.A.

Claims (6)

1. Fire-resistant heat-insulating coating made of mineral wool material, characterized in that the material is impregnated with a fire-resistant solution, a layer of fire-resistant enamel is applied on the outside, and an adhesive layer and a layer of heat-resistant glue are applied on the fastening side.  2. Fire-resistant heat-insulating coating made of mineral wool in a glass cloth lining, characterized in that the material and the lining are impregnated with a fire-resistant solution, a layer of fire-resistant enamel is applied to the outer lining, and an adhesive layer and a layer of heat-resistant glue are applied to the lining from the fastening side. .  3. The coating according to claims 1 and 2, characterized in that the mineral wool material is made in the form of a piercing mat.  4. The coating according to claims 1 and 2, characterized in that the mineral wool material is made in the form of a sheet.  5. The coating according to claim 2, characterized in that the mineral wool material has a lining on only one side. 6. The coating according to claims 2, 3 and 5, characterized in that from the side of the attachment, a layer of heat-resistant adhesive is applied to the sheet.