RU82371U1 - BUILDING MATERIAL FOR SCREENING - Google Patents

Abstract

1. A building material for shielding rooms, containing a base and a shungite-based shielding layer, characterized in that the base is made of a woven metal mesh, and the shielding layer is made of a coating using magnesia-shungite stucco mixture. ! 2. The building material according to claim 1, characterized in that it is fixed to the frame of a wooden beam, cement-particle board, gypsum board or plywood. ! 3. The building material according to claim 1, characterized in that the mesh is made of brass. ! 4. The building material according to claim 1, characterized in that the mesh is made with 2 × 2 cells. ! 5. The building material according to claim 2, characterized in that the grid is fixed to the frame with an overlap. ! 6. The building material according to claim 5, characterized in that in the place of overlap the mesh is fixed by strips of mesh material.

Description

The utility model relates to finishing building materials intended for the comprehensive protection of technical equipment and people in industrial, administrative and residential premises from exposure to electromagnetic fields (EMF) by shielding and to protect a person from the adverse effects of geopathic zones.

The main factors affecting technical means are (see, for example, Barsukov B.C. Personal energy protection. Means of protection against harmful radiation and not only. M: Amrita-Rus, 2004.):

- electromagnetic radiation and fields in the radio frequency and microwave ranges, functionally inherent in technical means;

- Spurious electromagnetic radiation (PEMI) of information processing facilities;

- spurious electromagnetic radiation;

- unintentional exposure of technical equipment to the electromagnetic fields of anthropogenic sources;

- electromagnetic factors of lightning discharges and other natural phenomena;

- deliberate power electromagnetic exposure created for criminal and criminal purposes.

Harmful production factors affecting personnel include (see, for example, “Guidelines for the hygienic assessment of working environment and labor process factors. Criteria and classification of working conditions.” Guideline R 2.2.2006-05):

- technogenic factors, primarily electromagnetic radiation of technical means;

- pathogenic radiation of geoactive zones;

- volume resonance of electromagnetic radiation in a shielded room;

- shielding of the Earth's natural magnetic field;

- static electricity.

Factors of a different physical nature must also be considered:

- radiation exposure;

- thermal effects (fires, etc.);

- climatic phenomena;

- mechanical factors;

- biological factors (microbes, rodents, etc.);

- chemical factors (chemically aggressive environments, etc.).

Electromagnetic radiation has a negative effect on the human body and, above all, on his brain and nervous system.

The main method of protecting a person from electromagnetic radiation is shielding. Shielding is also the main method of protection in various fields of technology - electromagnetic compatibility of technical means, protection against powerful electromagnetic fields, protection of means and information processing systems to prevent information leakage through technical channels.

The most common way to protect people and equipment by shielding is to create shielded rooms.

Modern requirements for the effectiveness of shielding of premises are at least 60 dB, which ensures the stable operation of technical equipment and effective protection of information (Kechiev LN, Stepanov PV "EMC and information security in telecommunication systems." Publishing House "Technologies" M., 2005., p.216).

Various materials are known for shielding rooms from harmful radiation, including materials containing carbon-containing substances.

The properties of coke have been well studied. For load-bearing building structures, bricks, concrete or blocks with the addition of coke are used, which provide shielding effectiveness from 10 to 20 dB for every 30 cm of thickness (Kechiev L.N., Stepanov P.V. “EMC and information security in telecommunication systems”. Publishing House "Technology". M., 2005., p. 216).

The use of graphite is known to absorb microwave radiation. Geometrical figures are made from it in the form of cylinders and cones of various sizes, which are fixed to walls and ceilings. (Yu.K. Kavneristy,

I.Yu. Lazareva, A.A. Ravaev. Microwave absorbing materials. M .: Nauka, 1982, p. 85).

Shielding with such materials is not very effective and is not suitable for protection against powerful (more than 60 dB) electromagnetic radiation from mobile and cordless phones, as well as for protecting information.

As protective shields, means are also used, which are a metal mesh on which woven or film materials are fixed. Such screens are intended mainly for shielding confined surfaces and for protecting biological objects. (Ya. A. Schneiderman. Foreign Radio Electronics, 1972, No. 7: 1975, No. 3), They are not very effective as building materials to protect against a wide range of harmful radiation.

It is known that the natural mineral shungite has specific unique properties, in particular, shungite is a strong diamagnet with the ability to shield and absorb electromagnetic radiation of various vibration frequencies. (S.E. Glebashev. Mineral raw materials. Shungit. Reference book. M.: ZAO "Geoinformmark", 1999).

Shungite has a specific volumetric electrical resistance of about 10 ⁹ Ohm / m and a specific surface electric resistance of about 10 ⁶ Ohm / m.

Shungite also has unique healing properties and a relaxing and healing effect. It is used for equipping relaxation grottoes in rehabilitation therapy, as an insulating and building material. [O.A. Rysyev. Shungite is a stone of health. - St. Petersburg: TESSA, 2001, p.41-82].

It was also found that shungite has the properties of neutralizing geopathogenic zones, therefore, it can be used to protect people in these zones (see OA Rysyev. “Shungite is a stone of health.” St. Petersburg: TESSA, 2001, p.41- 82). Pathogenic zones can be either natural, natural, or artificial - technogenic, associated with the operation of electronic equipment, information processing tools, high-voltage equipment, etc., therefore, the use of shungite in materials for the manufacture of protective screens, cladding panels, etc. It has a dual purpose - to protect against technogenic electromagnetic radiation and from the effects of geopathic zones.

All of the above suggests that natural shungite can be used as a material from which a screen can be made both for protection against electromagnetic radiation and for the neutralization of geopathic zones with a relaxing and healing effect.

To protect a person from the geopathogenic effects of the environment, it is known to use the crushed mineral shungite type III A, which is placed in bags. Bags with crushed mineral are laid tightly to each other, forming a layer of schungite 3-5 cm thick (RF patent No. 2157256, class A61N 1/16, 2000).

RF patent No. 2234176 proposes a protective screen in the form of a multilayer package, which consists of an alternating layer of insulating material and a layer of schungite, crushed into fractions from 6 nm to 15 nm.

However, these methods are not effective enough to protect technical equipment and humans and cannot be used as building materials for the construction of shielded buildings and premises.

Also known is a three-layer material according to the patent of the Russian Federation No. 22585866 dated February 13, 2004. Its outer layers are made of cardboard or plastic, on each side of which a printing ink containing particles of shungite mineral is applied. Aluminum foil was used as the middle shielding layer, all layers are connected by glue. For strength, a three-layer material is passed, for example, between the rollers, or placed under a press.

This material is difficult to manufacture and not effective enough for constructing shielded buildings and premises as a building material for floor and wall decoration due to its low strength and insufficient weather resistance.

The closest solution to the proposed one can be considered a coating based on dry construction mix ALFAPOL SHT-1; AMSH; ABS ”according to the patent of the Russian Federation for invention No. 2233255 dated January 29, 2003 (prototype), which include natural shungite of the III variety, active magnesium oxide in the form of caustic magnesite powder (MgO) and a modifying additive. The mixture is mixed with an aqueous solution of bischofite (MgCl ₂ ) and used for applying in the form of plaster or flooring on the inner or outer surfaces of the shielded room. After the curing of the mixture, durable, monolithic surfaces of building structures with conductive properties that provide protection against

electromagnetic radiation, while the shielding efficiency, depending on the thickness of the material layer, is up to tens of decibels. Materials are less conductive compared to metals, which eliminates the possibility of significant electromagnetic fields at the natural resonant frequencies of the shielded room. Building mixtures have a positive sanitary-epidemiological conclusion and are intended for leveling ceilings, internal and external walls (floor); for mounting on the surface of constructions of finishing piece goods from artificial and natural materials in industrial, residential, public, administrative and domestic buildings, in food, pharmaceutical, medical, printing, and children's institutions, including as collective protective equipment for electromagnetic shielding RF fields; protection against static electricity; electric fields of industrial frequency 50 Hz.

In addition, the walls, floor and ceiling of shielded rooms acquire unique properties: they provide comprehensive protection for shielded rooms from EMF; possess antistatic properties; do not distort the geomagnetic field of the Earth, which provides a natural geomagnetic environment in the homes and workplaces of personnel; do not emit dangerous gases and odors; do not contain cement; belong to the category of non-dusting and non-combustible materials; do not require additional finishing for painting or laying tile.

The effectiveness of shielding the plaster layer of the building mixture "ALFAPOL SHT-1; AMSH; ABS "15 mm thick is up to 26.9 dB in the frequency range from 0.01 to 34500 MHz (7th international symposium on electromagnetic compatibility and electromagnetic ecology. Proceedings of the symposium. St. Petersburg, June 2007, pp. 72-74 ) However, the required shielding efficiency of the premises (at least 60 dB) is achieved with a layer thickness of such a material of at least 100 mm, which does not always allow using the specified material as a finishing material for creating shielded rooms.

The objective of the proposed utility model is to increase the efficiency of providing comprehensive protection of technical equipment and people in industrial, administrative and residential premises from exposure

electromagnetic fields and human protection from pathogenic environmental influences.

To solve this problem, the material for shielding the premises contains a base and a shielding layer based on schungite. A woven metal mesh is proposed as the base, and a coating using the ALPHAPOL magnesia-schungite mixture is used as a shielding layer.

The material can be fixed to the frame of a wooden beam or plywood.

The mesh can have 2 × 2 cells and is attached to the lap surface.

The use of a metal mesh in addition to the shielding coating in the material improves the shielding efficiency.

The proposed technical solution is illustrated by figures 1 and 2, which show:

figure 1 - layered structure of the shielding material;

figure 2 - dependence of the screening coefficient (dB) at different frequencies (MHz) for the thickness of the plaster layer "ALPHAPOL" 15 mm

The proposed material (figure 1) contains a layer 1 made of a woven metal mesh with cells, for example 2 × 2 mm The overlap of the mesh at the joints is 100 mm. At the overlap, the mesh can be fixed with strips of mesh material. To ensure contact, the junction of the mesh fragments is coated with an electrically conductive paste.

The grid can be made of brass. In addition to the shielding properties, such a brass wire mesh provides good anti-corrosion performance.

A magnesia-shungite mixture 2, for example, “ALPHAPOL ШТ-1” of the required thickness, for example, with a layer of 15 mm, is applied to the mesh 1.

The mesh 1 can be fixed directly to the wall surface, for example, with industrial brackets or dowels, followed by applying the ALPHAPOL plaster mixture 2.

It is possible to fasten the mesh with the stucco mixture to plywood 3 or a timber frame. Then the material has the form of a three-layer panel.

The material is used to cover any internal surfaces of the premises and the facade of the building.

The use of a mesh in the shielding material provides the basic requirements for shielded rooms at a level of 60 dB, and the presence in the design of a 15 mm layer of magnesia-shungite stucco (floor) mixture ALFAPOL provides additional shielding for another 20 dB and comprehensive protection of the person from the pathogenic effects of the surrounding environment with a relaxing and healing effect.

The proposed shielding material is convenient for shielding surfaces of any configuration and can be used to align ceilings, internal and external walls, screeds and floor coverings in industrial, residential, public, administrative, domestic buildings, in children's and medical institutions. At the same time, it is a screen for protecting equipment and humans from electromagnetic radiation and a screen for protecting people from pathogenic environmental influences.

Thus, the proposed shielding panels are convenient to use and provide effective comprehensive protection of the premises from electromagnetic and pathogenic radiation.

Claims (6)

1. A building material for shielding rooms, containing a base and a shungite-based shielding layer, characterized in that the base is made of a woven metal mesh, and the shielding layer is made of a coating using magnesia-shungite stucco mixture. 2. The building material according to claim 1, characterized in that it is fixed to the frame of a wooden beam, cement-particle board, gypsum board or plywood. 3. The building material according to claim 1, characterized in that the mesh is made of brass. 4. The building material according to claim 1, characterized in that the mesh is made with 2 × 2 cells. 5. The building material according to claim 2, characterized in that the grid is fixed to the frame with an overlap. 6. The building material according to claim 5, characterized in that in the place of overlap the mesh is fixed by strips of mesh material.