RU2561119C1 - Primerless production of polyisocyanurate flame-proof construction sandwiched pir-boards - Google Patents

Abstract

FIELD: process engineering.SUBSTANCE: invention relates to production of construction materials, particularly, PIR-boards. Two reels of self-adhesive decorative protective film and two reels of lining material installed in parallel at appropriate unwinders are fed. Said self-adhesive decorative protective film is applied on top and bottom bands of lining material to laminate one of said bands with film at 20 130°C. Note here that film is applied from above on lining material top band while on bottom band it is applied from below. Then, inner surfaces of top and bottom band sides are processed by corona discharge to up the adhesion. Shaped lining material bands are carried by conveyor at preheating station. Thereafter, components of foam polyisocyanurate polymer components are fed to get the foam polyisocyanurate polymer with further production of continuous block of PIR-board. The latter is conveyed to band press to compact said block of PIR-board. Then, said block of PIR-board is fed to cutting unit to get finished boards to be cooled down.EFFECT: continuous process, lower costs, higher process line efficiency, non-polluting products.19 cl, 3 dwg, 3 tbl

Description

The invention relates to the production of building sandwich panels from non-combustible polyisocyanurate foam (PIR panels) without using a primer and their use as building material in buildings and structures for industrial and civil use, terminals, warehouses, for storage and processing of goods, shopping and entertainment centers , supermarkets and shops, exhibition, entertainment, sports, concert complexes, business centers; service stations, repair areas, parking lots, gas stations, agricultural complexes (cowsheds, poultry houses, pigsties), other types of prefabricated and mobile buildings.

The use of PIR material significantly reduces thermal decomposition, melting, and the formation of flammable or pyrophoric gases, which can be created on the basis of pyrolysis or decomposition of the main materials of insulation panels.

PIR-panel structures are significantly cheaper than alternative brick buildings, have low thermal conductivity, are not deformed and have a long service life.

The following methods are known in the art for the production of sandwich panels.

So, from the description of the patent of the Russian Federation No. 2395396 (published on July 27, 2010), a method is known for producing sandwich-type multilayer elements by arranging the material forming the middle layer between the coating layers using the adhesion promoter, which is applied to the lower coating layer, and then cutting the resulting multilayer element into parts to the desired length, the material forming the middle layer, if necessary, is subjected to foaming, characterized in that the application is carried out by means of a rotating Relkom in the form of a shallow hollow cylinder open at the top, at least one lateral outlet opening, which is connected to a conduit for supplying the adhesion promoter.

In addition, there is a known method of producing multilayer panels by applying an adhesive composition to surfaces to be glued, applying layers to be glued to each other to obtain a preform consisting of the lower, upper and middle layers, and then forming the resulting preform, characterized in that the adhesive composition is sequentially applied on the inner side of the lower layer, applying a middle layer to it, applying an adhesive composition to the free surface of the middle layer, applying an upper layer to it loya, and the molding of the obtained preform is carried out by crimping on rolls, moreover, polystyrene foam, polyurethane foam or mineral wool are used as the middle layer, and as an adhesive composition, a composition comprising component A based on a polyester and component B based on a polyisocyanate, characterized in that as component A, it contains a pre-mixed product of 99.0-99.9 wt. including a polyester with a molecular weight of up to 1000 obtained by polycondensation of an aliphatic dicarboxylic acid with the number of C4.8 atoms and a polyol selected from the group consisting of ethylene glycol, diethylene glycol, triethylene glycol, 1,4-butanediol, glycerol, trimethylolpropane and mixtures thereof, 0, 1-1.0 wt. including a catalyst selected from the group comprising diazobicyclooctane, tertiary amines, organotin compounds and mixtures thereof, and 0-30 wt. including toluene or ethyl acetate, and as component B, the product of preliminary mixing of 70-80 wt. including polyisocyanate and 20-30 wt. including an 18-20% solution in ethyl acetate of the condensation product of an equimolar amount of polybutylene glycol adipate, butylene glycol and 2,4-toluene diisocyanate, with a mass ratio of components A and B 1: 1 (RF patent No. 2207359, published June 27, 2003).

The closest analogue to the patented solution is a method for the production of sandwich structures using continuous or discontinuous technology is well known from the general state of the art. For this, a still liquid reaction mixture is applied to the lower coating layer using the application device according to the invention. Then, the slowly foaming reaction mixture is advanced by means of a lower conveyor to a molding section bounded by upper and lower guide tapes. The expandable reaction mixture reaches the upper coating layer and thus adheres both coating layers to each other. Within the molding section, the foam hardens, with the upper and lower guide tapes setting the thickness of the product being manufactured, and after passing through the molding section, it is cut off by a special trimmer to obtain panels of the desired length (RF patent No. 2440855, published January 27, 2012).

The disadvantages of the known methods are the need to use a polyurethane primer (glue) for bonding insulation with casing. The primer has a combustibility group G4, it is unacceptable for the creation of slow-burning sandwich panels based on PIR insulation, approaching the combustibility group to P. Moreover, the use of a primer for bonding presents technological difficulties for mastering the production of panels in large volumes, for example, with a continuous method receipt.

The objective of the proposed method is to eliminate the above disadvantages.

The technical result of the patented solution is to ensure the continuity of the process of obtaining sandwich panels without additional costs for the primer surface treatment of the skin and, accordingly, the line productivity, improving environmental safety and reducing the combustibility of the resulting panels. The claimed technical result is achieved by implementing an unprecedented method for the production of polyisocyanurate non-combustible building sandwich panels, which consists in supplying two rolls of self-adhesive decorative protective film and two rolls of sheathing material installed in parallel in the corresponding unwinding devices in the case of the processing line, applied to the upper and the lower tape of the sheathing material is a self-adhesive protective decorative film, one of the sides of each tape of the sheathing material is laminated wrap film at a temperature of + 20 ° C to + 130 ° C, while the film is applied to the upper ribbon of the sheathing material from above, and the film is applied to the lower ribbon from the bottom, then the internal surfaces of the upper and lower ribbons are treated with a corona discharge of 3-6 kW to improve adhesion, profiled sheathing material belts are transported by conveyor to a preheating station, where they are heated to 40-42 ° C, and then into the space between the upper and lower belts from the device for preparing polyisocyanurate foam Using the application device, EPA supplies the components of the foam polyisocyanurate polymer with the subsequent production of a continuous sandwich panel block, transports the continuous sandwich panel block to a belt press with a roll temperature of 70-73 ° C and compacts the sandwich panel block between the metal tracks of the crawler press, then the block of sandwich panels is sent to a cutting device to obtain finished sandwich panels, followed by cooling them to room temperature in a cooling device.

As a decorative protective film, a self-adhesive decorative film with a thickness of 35-40 microns with an adhesive composition based on aqueous acrylic dispersion can be used.

The polyisocyanurate foam polymer is a closed-cell polyisocyanurate polymer which is prepared as follows: a polyol based on a mixture of polyhydric alcohols containing at least two hydroxyl-OH groups and an isocyanate based on aromatic or aliphatic isocyanates containing at least , two isocyanate groups —N = C = O in the presence of catalysts (from tin salts, potassium carboxylates and tertiary amines), a foaming agent (n-pentane, cyclopentane, isopentane, butane, 1-pentene , cyclopentene, hexanes, heptane or Freon R-141B) and additives (from representatives of emulsifiers). The resulting mixture is poured between the inner surfaces of two metal plating for the entire length in a continuous manner.

In a particular case, the polyisocyanurate foam polymer may contain a catalyst based on the ammonium salt of 1,4-diazabicyclo [2.2.2] octane derivatives and Huntsman Suprasec® 2085 isocyanate reaction products, which is a polymer diphenylmethanediisocyanate with an average functionality of 2.9, mass of cyano group in the amount of 30.5 ± 0.5% and a viscosity of 625 MPa · s at 25 ° C, in turn obtained by the phosgenation reaction of aniline-formaldehyde condensate, polyester polyol, which is used as polyoxyethylene-polyoxypropylene p Lyol with an average molecular weight of 2000-10000 and secondary nominal hydroxyl value of 2-6 for alcohol functional groups and comprising polyexyethylene fragment - up to 50 wt. % in the amount of 676-2270, a blowing agent in an amount of 24-27, a blowing agent n-pentane in an amount of 64-243.

As the polyester polyol, the polyester polyol DaltofoamTR 33209 can be used, which is obtained by the polymerization of sorbitol and epoxypropylene (epoxyethylene) in the presence of potassium hydroxide (sodium hydroxide), followed by neutralization of the reaction mass, degassing and vacuum filtration of the resulting product.

As a blowing agent, a Daltofoam TR 33204 blowing agent with a viscosity of 54 mPa · s and a specific gravity of 1.072 g / ml manufactured by Huntsman is an emulsifier from the class of synthetic detergents with fatty alkyl radicals (C ₁₂ -C ₁₈ ) based on water . This blowing agent is added to the reaction mixture to prevent phase separation during polymerization by dissolving the fat-like components.

As the experiments showed, the PIR / PUR ratio for the reduced composition of the foam polyisocyanurate polymer decreases as it approaches the surface to a value that is sufficient and acceptable to create adhesion, which allows you to do without using a primer when forming sandwich panels.

In this case, the unwinding devices (unwinders) of the rolls of the sheathing material and the film are electric unwinders (uncoiler with electric drive).

The profiling device is made with base frames and a tool for profiling the front and profile of the side surface of the metal tape.

The belt press is a closed continuous belt of articulated flat rectangular metal tracks.

The supply of the components of the foam polyisocyanurate insulation is carried out using a computer system that controls the supply of chemical components of the foam polyisocyanurate sealant.

The temperature conditions of the preheating station and the belt press, as well as the introduction of geometric length parameters for cutting the continuous block of the sandwich panel, are set by means of a computer control system.

As a metal strip, it is possible to use galvanized steel, galvanized painted steel, steel coated with Zn-Al alloy (zinc with the addition of aluminum and silicon) or Zn-Al-Mg alloy (zinc with the addition of aluminum and magnesium), stainless steel, aluminum. As an alternative to a metal tape, it is possible to use roll paper with the use of flame retardants or wound rolls of composite materials based on non-combustible and chemically resistant plastics with fiberglass, gypsum plasterboard, asbestos-cement or cement-bonded fillers, and polymeric materials as a protective decorative film based on polyvinyl chloride (PVC), polyethylene (PE), polypropylene (PP) or polyethylene terephthalate (PET). In the case of the use of flexible facing tapes of non-metallic nature, profiling is not used.

When metal tape is used as a sheathing material, a protective film is applied to the upper and lower surfaces of the metal tapes, the inner surface of the metal tapes is treated by corona discharge and then the tapes are fed through rollers to the device for profiling the front and profile of the side surfaces of the material. In this case, the profiling device is made with base frames and a tool for profiling the front and profile of the side surfaces of the metal tape.

After installing the panels on a building site, the protective film is removed (it is only protective in nature).

As the studies showed, the line speed should preferably be chosen equal to 2.8-7 m / s, since at a speed of less than 2.7 m / s the process is not economically efficient due to the low line productivity, and at a speed of more than 7 m / s the panels go off from rolls of a belt press with unreacted components. The reaction will then go outside the press, which will lead to loss of shape (propelleriness) and the panels will become unsuitable for construction.

Thus, the invention lies in the technological feasibility of the production of polyisocyanurate non-combustible (PIR) building sandwich panels without additional primer surface treatment of the skin. An advantage of this invention is that the production of polyisocyanurate non-combustible (PIR) building sandwich panels is achieved without additional costs for the primer surface treatment of the skin. The technical effect was achieved by optimizing the corresponding technological process (ratio of volume fractions of the main reagents isocyanate / polyol / catalyst, blowing agent, line speed, temperature) using a multicomponent system consisting of Suprasec2085 / DaltofoamTR33209 / DaltofoamT033219 / DaltofoamTR33204 ”manufactured by Huntsman n -pentane or Freon R-141B as foaming agents for foaming sandwich panels in a continuous manner.

An unprecedented method for the production of polyisocyanurate non-combustible (PIR) building sandwich panels is based on the close relationship of the three components of the production cycle: (a) specialized conditions and equipment, which allows you to profile and pack metal cladding with non-combustible polyisocyanurate (PIR) insulation, (b) special conditions and equipment used to obtain non-combustible polyisocyanurate (PIR) insulation using special formulations to control the quantitative proportions of chemical reagents, (c) special conditions and devices for applying (casting) non-combustible polyisocyanurate (PIR) insulation to the inner side of metal plating. In this invention, the advantages in the method for producing polyisocyanurate non-combustible (PIR) building sandwich panels are achieved by optimizing the production parameters according to points b and c.

Next, the solution is illustrated by reference to the figures, which depict the following.

In FIG. 1 is a sandwich panel production line according to a patented method.

Figure 2 is a device for the preparation of polyisocyanurate polymer foam.

Figure 3 is a schematic representation of the process of applying PIR between the casing of the material.

Specialized conditions and equipment in accordance with paragraph a in this method are represented by a fully automated continuous technological process on the line, which consists of two electric unwinders 1 metal rolls, two electric unwinders 2 decorative protective film, device 3 for creating a corona electric discharge with power from 3 to 6 kW, devices 4 for profiling metal tapes, stations 5 for preheating with heated air or infrared lamps, devices 6 for applying a polyisocyanurate polymer foam from a preparation device 7, a fume hood 8 (to remove excess foaming agent) at a polyisocyanurate polymer preparation site, a computer system 9 for controlling the supply of chemical components of a polyisocyanurate polymer (sealant), a tape press 10, which is a closed continuous tape from articulated flat rectangular metal tracks that harden the aforementioned foam polymer in such a way to form a PIR-insulating layer, a computer system 11 that controls the cutter (band saw) 12, the cutter (band saw) 12, which cuts the panel across and allows you to remove burrs from the side of the aforementioned panel, device 13 for cooling the panels ( ventilated room), fixtures 14 for storing (warehouse) panels.

Computer control in devices 9 and 11 (Fig. 1) over the parameters of the process includes: (a) fully automated control of all parameters of the process, (b) the ability to control the process in automatic mode by one operator, (c) making a sandwich panels with an installation width of 1100 mm and 1180 mm, a working length of 2 m to 14 m, (d) the manufacture of sandwich panel webs from 20 mm to 200 mm thick, (e) the manufacture of wall panels with locking parts of the standard Z-Lock type for 1PTS, (f) outgoing tovlenie wall panel with hidden fastening of panels to a load-bearing metal type Secret Fix for 2PTS, (g) use as a heat-insulating core retardant foams (PIR).

In accordance with FIG. 1, a phased panel manufacturing process includes:

1. Transportation by a forklift of metal rolls from a warehouse into a continuous line body for panel manufacturing.

2. The supply of a decorative protective film from the warehouse to the casing of a continuous line.

3. Installation of a metal roll (2 pcs.) In an electric unwinder of rolled metal 1.

4. Installing a roll of decorative protective film (2 pcs.) In the unwinder 2.

5. Turning on the power for device 8 for preparing polyisocyanurate foam polymer.

6. Turning on the power for the belt press 10.

7. Power on for the profiling device 4.

8. Automated feeding of the ends of the metal roll by rollers into the profiling device 4 with base frames and a tool for profiling the front and side surface profiles.

9. Transportation of the obtained profiled sheet by conveyor to the preheating station 5.

10. The power supply for the device 3 create a corona discharge for processing the inner surfaces of the upper and lower rolls (to improve adhesion), and the corona discharge is not applied if there is no primer, painting or polymer coating on the inner side of the metal tape.

11. Turning on the power for the computer system 9, which controls the supply of chemical components of the foam polyisocyanurate polymer.

12. The introduction of parameters for the ratio of components to the PIR system for a given recipe in a computer control system 9.

13. The introduction of temperature parameters for the pre-heating station 5 and the belt press 10 in the computer control system 9.

14. Achievement of the set temperature conditions for the pre-heating station 5 and the belt press 10.

15. Application (filling) of the components of the foam polyisocyanurate (PIR) sealant using a computer control system 9 on the inner side of the metal sheathing using a device for applying foamed polymer (foam) 6.

16. Transportation of the resulting continuous block of sandwich panels in a belt press 10.

17. Introduction of geometric parameters of length for cutting a continuous block of a sandwich panel in a computer control system 11.

18. The supply of a continuous block of sandwich panels in the cutting device 12.

19. The supply of cut panels along the conveyor to the area of cooling panels 13.

20. Packing and transportation of finished panels in the storage area of the panels 14.

Special conditions for obtaining a non-combustible polyisocyanurate (PIR) polymer (insulation) in accordance with paragraph b are achieved by using a device for supplying chemical reagents, which is a series of mechanisms and devices for supplying chemical reagents and subsequent mixing (Fig. 2).

The device (Fig. 2) includes a container 15 for storing the polyol, a heat exchanger 16, a device for supplying air 17 (12% of the amount of polyol), a dynamic mixer 18. The combination of devices 15, 16, 17 and 18 form a low-pressure area 19. Also, the device contains a high-capacity pump 20 (up to 300 kg / h) designed to supply the polyol to the mixing chamber 27, a catalyst reservoir 23, a foaming agent reservoir 24, a foaming agent reservoir 25, and the outlet of each of these reservoirs through low-capacity pumps 22 ( up to 10 kg / h) s connected through a static mixer 26 to the mixing chamber 27. In addition, the device contains a container 29 with an isocyanate, the output of which is connected to a heat exchanger 30 and a pump 31, dosing the isocyanate into the mixing chamber 27. The pumps 20 and 31, the static mixer 26 and the mixing chamber 27 form high pressure region 21. At the outlet of mixing chamber 27, a mixed liquid PIR is obtained.

The essence of this multi-stage process is that: (a) they are mixed in a mixing chamber 27 in the presence of catalysts (tin salts, potassium carboxylates and tertiary amines), a foaming agent (n-pentane, cyclopentane, isopentane, butane, 1-pentene, cyclopentene , hexanes, heptane or freon) and additives (from representatives of emulsifiers), a polyol based on a mixture of polyhydric alcohols containing at least two hydroxyl-OH groups and an isocyanate based on aromatic or aliphatic isocyanates containing at least two isocyanates n-groups = N = C = O. The resulting mixture is poured between the inner surfaces of two metal plating for the entire length in a continuous way to obtain the finished product 28.

Special conditions and devices for applying non-combustible polyisocyanurate (PIR) insulation in accordance with paragraph b are achieved by using a series of mechanisms and devices indicated in figure 3.

The upper and lower casing 32-33 are solid or flexible sheets of metal or non-combustible material fed by a conveyor belt. Typical materials for the top and bottom cladding of panels are: galvanized painted steel, galvanized steel, steel coated with Zn-Al alloy (zinc with the addition of aluminum and silicon) or Zn-Al-Mg alloy (zinc with the addition of aluminum and magnesium), stainless steel , aluminum, paper with the use of flame retardants, composite materials based on non-combustible and chemically resistant plastics with fiberglass, gypsum plasterboard, asbestos-cement or cement-bonded fillers. The inner surface of the material is usually coated with a primer or other corrosion resistant coating. In this invention, we used sandwich panel sheathing made from rolled hot dip galvanized rolled sheets with continuous lines according to GOST R 52246-2004, a group of PCs or CPs (for painting) of normal drawing, normal thickness difference of HP, first class zinc coating with cut edge 0. Thickness applied metal: 0.45-0.6 mm. The nozzle 34 is a device in which the formulated components from containers 23, 24, 25, 15 and 29 are deeply mixed until they come into contact with the lower skin at room temperature or slightly elevated temperature for a short period. The nozzle 34 with a length of 0.384 m and an inner diameter of 10 mm is designed to achieve a uniform distribution of reagents. The nozzle 34 has 35 holes with a diameter of 2 mm, distributed at intervals along one side. Holes can be designed in a wide variety of forms. The nozzle has a removable housing for simple cleaning and can be made of metal or plastic. The nozzle 34 is connected to a power conduit supplying reagents through the inlet choke and moves perpendicular to the longitudinal axis of the supplied surface of the substrate on a special device that is controlled by a computer control system to achieve a given performance (for example, for a system with a density of 1.2 g / cm ^{3 a} given performance was 240.33 g / s). Heated to a temperature of 70-73 ° C and supplied by a closed belt conveyor, the upper and lower plates 36 and 37 are thick metal tracks, which simultaneously act as heat exchangers and forming segments. The metal tracks are heated by the ventilation system 35 using independent hot air blowing in a closed cycle along the belt press, and the air is heated from oil coolers heated by an autonomous boiler room with a regulated supply of gas fuel. Foam 38 is a foamed polyisocyanurate (PIR) polymer resulting from the reaction after mixing the liquid components. The polyisocyanurate polymer 38 prepared according to this method is a closed cell polymer.

According to the preferred embodiment according to points b and c, the reagents and conditions specified in Tables 1-3 were used to form a solid polyisocyanurate (PIR) foam (as a sample for wall panels with a thickness of 50 to 100 mm). The specified insulation was obtained by deep mixing of the reaction components, along with a foaming component (n-pentane), followed by applying a mixed stream of reagents to the inner side of the lower skin. Adhesion was absent as a result of the application of the initial (unprecedented) formulation. On the contrary, the use of a primer was not required after adjusting the initial formulation according to the application parameters and the resulting adhesion.

As a result of the application of the conditions and reagents indicated in Table 1, the following indicators were achieved (measurements after 24 hours):

1. acceptable experimental thickness of the sandwich panels:

1.1. spike - 50.44 mm;

1.2. groove - 50.74 mm;

1.3. the middle is 50.82 mm.

2. acceptable homogeneous foam without impurities, full filling (according to the results of visual inspection).

Benefits:

1. Achieving positive strength adhesion with respect to the skin.

2. Achieving a higher fire resistance limit, in view of the exclusion of the fuel primer from the production cycle (E 60, I 4).

3. Avoidance of material losses achieved as a result of:

3.1. reducing the amount of Daltofoam TO 33219 catalyst by 1.25 parts by weight;

3.2. reducing additives Daltofoam TR 33204 by 0.5 weight parts;

3.3. reducing the blowing agent, n-pentane, by 0.7 parts by weight;

3.4. reduce Suprasec 2085 isocyanate by 5 parts by weight.

As a result of the application of the conditions and reagents indicated in Table 2, the following indicators were achieved (measurements after 24 hours):

3. acceptable experimental thickness of the sandwich panels:

3.1. spike - 81.1 mm;

3.2. groove - 83.2 mm;

3.3. the middle is 82.6 mm.

4. acceptable homogeneous foam without impurities, full filling (according to the results of visual inspection).

Benefits:

1. Achieving positive strength adhesion with respect to the skin.

2. Achieving a higher fire resistance limit, in view of the exclusion of the fuel primer from the production cycle (E 60, I 45).

3. Avoidance of material losses achieved as a result of:

3.1. reducing the amount of Daltofoam TO 33219 catalyst by 1.5 parts by weight;

3.2. reducing additives Daltofoam TR 33204 by 2.0 parts by weight;

3.3. reducing the blowing agent, n-pentane, by 0.3 parts by weight;

3.4. reduce Suprasec 2085 isocyanate by 30 parts by weight.

Table 3. Conditions and ratio of components for wall panels with a thickness of 100 mm.

As a result of the application of the conditions and reagents indicated in Table 3, the following indicators were achieved (measurements after 24 hours):

1. acceptable experimental thickness of the sandwich panels:

1.1. spike - 101.7 mm;

1.2. groove - 103.1 mm;

1.3. the middle is 102.4 mm.

2. acceptable homogeneous foam without impurities, full filling (according to the results of visual inspection).

Benefits:

1. Achieving positive strength adhesion with respect to the skin.

2. Achieving a higher fire resistance limit, in view of the exclusion of the fuel primer from the production cycle (E 60, I 45).

3. Avoidance of material losses achieved as a result of:

3.1. reducing the amount of Daltofoam TO 33219 catalyst by 1.4 parts by weight;

3.2. reducing the additive of Daltofoam TR 33204 by 1.7 parts by weight;

3.3. reducing the blowing agent, n-pentane, by 0.6 parts by weight;

3.4. reduce Suprasec 2085 isocyanate by 30 parts by weight.

Claims (19)

1. An unprecedented method for the production of polyisocyanurate non-combustible building sandwich panels, characterized in that two rolls of a self-adhesive decorative protective film and two rolls of sheathing material, installed in parallel in the corresponding unwinding devices in the case of the processing line, are applied to the upper and lower tapes of the sheathing material with a self-adhesive protective a decorative film, one of the sides of the tapes of the sheathing material is laminated at a temperature of 20 ° C to 130 ° C, while on the upper tape of the material the film is applied from above, and the film is applied from below to the lower ribbon, then the internal surfaces of the upper and lower ribbons are treated with a corona discharge of 3-6 kW to improve adhesion, the profiled ribbons of the sheathing material are transported by conveyor to a preheating station, where they are heated to 40 -42 ° C, after which the components of the polyisocyanate foam are fed into the space between the upper and lower ribbons from the device for preparing polyisocyanurate foam using the application device polymer with the subsequent production of a continuous sandwich panel block, the continuous sandwich panel block is transported to a belt press whose roll temperature is 70-73 ° C and the sandwich panel block is sealed between the metal tracks of the caterpillar press, then the sandwich panel block is sent to the device cutting to obtain finished sandwich panels, followed by cooling them to room temperature in a cooling device. 2. The method according to p. 1, characterized in that the unwinding device of the rolls of sheathing material and decorative film are electric unwinders. 3. The method according to p. 1, characterized in that the supply of the components of the foam polyisocyanurate insulation is carried out using a computer system that controls the supply of chemical components of the foam polyisocyanurate sealant. 4. The method according to p. 1, characterized in that the temperature conditions of the preheating station and the belt press, as well as the introduction of geometric length parameters for cutting a continuous block of sandwich panels are set using a computer control system. 5. The method according to claim 1, characterized in that the polyisocyanurate foam polymer is a closed cell polyisocyanurate foam. 6. The method according to p. 1, characterized in that the polyisocyanurate insulation foam contains a catalyst based on the ammonium salt of 1,4-diazabicyclo [2.2.2] octane derivatives, isocyanate, polyester polyol, a foaming agent in an amount of 24-27, a blowing agent n- pentane in an amount of 64-243. 7. The method according to p. 6, characterized in that the isocyanate is a polymer diphenylmethanediisocyanate with an average functionality of 2.9, a mass of a cyano group in an amount of 30.5 ± 0.5% and a viscosity of 625 MPa · s at 25 ° C obtained by the phosgenation reaction aniline formaldehyde condensate. 8. The method according to p. 6, characterized in that as the polyester polyol use polyoxyethylene-polyoxypropylene polyol with an average molecular weight of 2000-10000 and an average hydroxyl value of 2-6 for alcohol functional groups and with a polyoxyethylene fragment content of up to 50 wt.% in the amount of 676-2270. 9. The method according to p. 6, characterized in that the polyester polyol DaltofoamTR 33209 is used, which is obtained by the polymerization of sorbitol and epoxypropylene or epoxyethylene in the presence of potassium hydroxide or sodium hydroxide, followed by neutralization of the reaction mass, degassing and vacuum filtration of the resulting product . 10. The method according to p. 6, characterized in that as a foaming agent used foaming additive Daltofoam TR 33204 with a viscosity of 54 MPa * s and a specific gravity of 1,072 g / ml manufactured by Huntsman is an emulsifier from the class of synthetic detergents with greasy water-based alkyl radicals (C ₁₂ -C ₁₈ ). 11. The method according to p. 1, characterized in that as the skin material use flexible facing tapes of non-metallic nature. 12. The method according to p. 10, characterized in that as flexible facing tapes of non-metallic nature, roll paper with fire retardant additives, composite materials based on non-combustible and chemically resistant plastics with fiberglass, gypsum plaster, asbestos-cement or cement-bonded fillers are used. 13. The method according to p. 1, characterized in that as a decorative protective film using a self-adhesive decorative film with a thickness of 40 microns with an adhesive composition based on aqueous acrylic dispersion. 14. The method according to p. 12, characterized in that as the material of the self-adhesive decorative film using polymeric materials based on polyvinyl chloride, polyethylene, polypropylene or polyethylene terephthalate. 15. The method according to p. 1, characterized in that a metal tape is used as the skin material. 16. The method according to p. 13, characterized in that galvanized steel, galvanized painted steel, galvanized steel, stainless steel, steel coated with Zn-Al alloy (zinc with the addition of aluminum and silicon) or Zn-Al alloy are used as a metal tape. -Mg (zinc with the addition of aluminum and magnesium), stainless steel, aluminum. 17. The method according to p. 14, characterized in that the upper and lower metal sheathing tapes with a film deposited on them are treated with a corona discharge and then fed through rollers to a device for profiling the front and side surfaces of the material. 18. The method according to p. 15, characterized in that the profiling device is made with base frames and a tool for profiling the front and side surfaces of the metal strip. 19. The method according to p. 1, characterized in that the line speed is selected equal to 2.8-7 m / s.

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