Method of production of foamed glass mat and device for realization of this method
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Foam decoration manufacturing method / 2276659 Invention relates to foam production technology and can be used manufacture of foam decoration. Invention aims at simplifying production technology and obtaining effective decorative heat-retention material for out-door and in-door facing of residential and industrial constructions. Method according to invention consists in grinding commercial broken glass to specific surface 5000-7000 cm2/g followed by moistening to moisture 8%. Thus obtained material is compacted on press at 20 MPa. Resulting samples are subjected to watering during thermomoist processing to form silanol water, which would favor swelling during heat treatment. Thermomoist processing conditions: temperature rise for 2 h, ageing at 85-95°C for 6 h, and cooling to 15-25°C for 3 h. Watered samples are coated with decorative layer using flooding technique and then subjected to heat treatment at 800°C followed by annealing. Finally obtained samples show density 350 kg/m3, bending strength 28 kg-force/cm2 and decorative glossy water-impermeable film 0.2-0.3 mm thick. |
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Method of production of calibrated granulated foamed glass / 2272005 Initial raw mixture is made from aqueous alkaline solution of sodium silicate in the amount of no less than 30-70 mass-% and broken glass powder of arbitrary chemical composition in the amount of 25-65 mass-%. This raw mixture is subjected to heat treatment to dehumidified state and powder-like charge and aqueous dispersion are prepared in presence of plasticizing agents. Product thus obtained is dried at dried at temperature of 450-500°C, pelletized and is held at foaming temperature within range of 800-850°C. |
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Foaming mixture and a method of production of a modular foamed glass with the mixture use / 2265582 The invention is pertaining to the methods of production of effective functional heat-insulating materials with a low value of their thermal conduction and densities, in particular, to the methods of production of the vitreous silicate materials, namely, the foamed glass with usage of a foaming mixture and is dealt with utilization of the vitreous wastes produced as a result of the household vital activity of people, and also the technogenic products of the people household activity and industrial origination. The problem of the offered invention is production of an effective functional modular foamed glass with improved operational characteristics: an apparent density - 0.15-0.45 g/cm3, high heat-insulating properties λ = 0.06-0.08 W/(m·°K), volumetric water adsorption of no more than 10%, capable to withstand mechanical loadings of no less than 7 kg/cm2; utilization of alkaline silica-alumina and borosilicate vitreous wastes of different kinds of glass, both individual glass and mixtures of glasses. The foaming mixture for production of the modular foamed glass includes I in mass %): active carbon-black with a specific surface area of 50-100 m/g -20-70; sulfates of alkaline-earth elements - 10-40, carbonates of alkaline-earth elements - 20-40. The method of production of the modular foamed glass with a usage of the foaming mixture provides for: a dispersion of the utilized glassbats up to the specific surface of 15000-20000 cm2/g; an addition to 95.0-99.8 mass % of the dispersed glassbats of 0.2-5.0 mass % of the foaming mixture; agitation at humidity of 1.2-1.5 mass %; granulation into particles with the diameter of no more than 2000 microns; a filling of the granules in the mold and their subcompaction up to a porosity of 0.35-0.55; sintering at the temperature of 600-750°C; a foaming at the temperature of 800-900°C, a hardening by temperature decrease to 550-650°C at the rate of 200°C /minute and annealing at the temperature of 500-600°C. |
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Glass foam fabrication method / 2255060 Invention relates to building materials with low heat conductivity and density values. Fabrication of glass foam comprises preliminary heat treatment at temperature below foaming temperature of starting mixture prepared from broken glass powder, carbon-containing gasifier, and sodium and/or potassium silicate aqueous solution, pausing at this temperature to complete foaming process, and subsequent cooling. Starting mixture is prepared at temperature not superior to 70°C by consecutively mixing sodium and/or potassium silicate aqueous solution (30-70%), not sorted broken glass powder (25-65%), and carbon-containing gasifier (4-9%), after which mixture is treated at 450-550°C until removal of water, including chemically bound one, is completed. Resulting product is cooled and then heated to foaming temperature (750-830°C). |
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Glass foam fabrication method / 2255059 Invention relates to building materials with low values of heat conductivity and density. Fabrication of glass foam comprises heating powderlike blend with carbon-containing gasifier to foaming temperature, pausing at this temperature to complete foaming process, and subsequent cooling. Blend utilized is a cooled raw mix ground to powdered state, which is prepared via heat treatment of mixture of sodium and/or potassium silicate alkali aqueous solution and silicate-reactive additive, in particular fine broken glass powder and carbon-containing gasifier, at 450-550°C until removal of water, including chemically bound one, is completed. According to invention, content of sodium and/or potassium silicate alkali aqueous solution amounts to 30-70%, mixing is carried out at temperature not superior to 70°C, and foaming temperature of blend lies within a range of 750 to 830°C. |
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Method of preparing blend for fabricating glass foam / 2255058 Invention relates to building materials with low heat conductivity and density values. Preparation of blend comprises stirring glass-forming components and powderlike additives containing gasifier among other components. Glass-forming component utilized is sodium and/or potassium silicate aqueous solution taken in amounts 50 to 70% and silicate-reactive additive is fine powder of broken glass. Stirring is carried out at temperature not superior to 70°C and viscous-flow mix is thermally treated at 450-550°C to completely remove of water, including chemically bound one, after which mix is cooled and ground into power with particle size at most 60-70 μm. |
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Method of preparing raw mix for fabricating glass foam / 2255057 Invention relates to building materials with low values of heat conductivity and density. Preparation of raw mix comprises stirring glass-forming components and powderlike additives containing gasifier among other components. Glass-forming component utilized is sodium and/or potassium silicate aqueous solution taken in amounts 30 to 70% and silicate-reactive additive is fine powder of broken glass. Stirring is carried out at temperature not superior to 70°C and, after stirring, resulting mix is subjected to heat treatment at temperature between 450 and 550°C for a period of time long enough to completely remove of water, including chemically bound one, after which mix is cooled and powdered. |
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Method of preparing raw mix for fabricating glass foam / 2255057 Invention relates to building materials with low values of heat conductivity and density. Preparation of raw mix comprises stirring glass-forming components and powderlike additives containing gasifier among other components. Glass-forming component utilized is sodium and/or potassium silicate aqueous solution taken in amounts 30 to 70% and silicate-reactive additive is fine powder of broken glass. Stirring is carried out at temperature not superior to 70°C and, after stirring, resulting mix is subjected to heat treatment at temperature between 450 and 550°C for a period of time long enough to completely remove of water, including chemically bound one, after which mix is cooled and powdered. |
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Method of preparing blend for fabricating glass foam / 2255058 Invention relates to building materials with low heat conductivity and density values. Preparation of blend comprises stirring glass-forming components and powderlike additives containing gasifier among other components. Glass-forming component utilized is sodium and/or potassium silicate aqueous solution taken in amounts 50 to 70% and silicate-reactive additive is fine powder of broken glass. Stirring is carried out at temperature not superior to 70°C and viscous-flow mix is thermally treated at 450-550°C to completely remove of water, including chemically bound one, after which mix is cooled and ground into power with particle size at most 60-70 μm. |
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Glass foam fabrication method / 2255059 Invention relates to building materials with low values of heat conductivity and density. Fabrication of glass foam comprises heating powderlike blend with carbon-containing gasifier to foaming temperature, pausing at this temperature to complete foaming process, and subsequent cooling. Blend utilized is a cooled raw mix ground to powdered state, which is prepared via heat treatment of mixture of sodium and/or potassium silicate alkali aqueous solution and silicate-reactive additive, in particular fine broken glass powder and carbon-containing gasifier, at 450-550°C until removal of water, including chemically bound one, is completed. According to invention, content of sodium and/or potassium silicate alkali aqueous solution amounts to 30-70%, mixing is carried out at temperature not superior to 70°C, and foaming temperature of blend lies within a range of 750 to 830°C. |
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Glass foam fabrication method / 2255060 Invention relates to building materials with low heat conductivity and density values. Fabrication of glass foam comprises preliminary heat treatment at temperature below foaming temperature of starting mixture prepared from broken glass powder, carbon-containing gasifier, and sodium and/or potassium silicate aqueous solution, pausing at this temperature to complete foaming process, and subsequent cooling. Starting mixture is prepared at temperature not superior to 70°C by consecutively mixing sodium and/or potassium silicate aqueous solution (30-70%), not sorted broken glass powder (25-65%), and carbon-containing gasifier (4-9%), after which mixture is treated at 450-550°C until removal of water, including chemically bound one, is completed. Resulting product is cooled and then heated to foaming temperature (750-830°C). |
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Foaming mixture and a method of production of a modular foamed glass with the mixture use / 2265582 The invention is pertaining to the methods of production of effective functional heat-insulating materials with a low value of their thermal conduction and densities, in particular, to the methods of production of the vitreous silicate materials, namely, the foamed glass with usage of a foaming mixture and is dealt with utilization of the vitreous wastes produced as a result of the household vital activity of people, and also the technogenic products of the people household activity and industrial origination. The problem of the offered invention is production of an effective functional modular foamed glass with improved operational characteristics: an apparent density - 0.15-0.45 g/cm3, high heat-insulating properties λ = 0.06-0.08 W/(m·°K), volumetric water adsorption of no more than 10%, capable to withstand mechanical loadings of no less than 7 kg/cm2; utilization of alkaline silica-alumina and borosilicate vitreous wastes of different kinds of glass, both individual glass and mixtures of glasses. The foaming mixture for production of the modular foamed glass includes I in mass %): active carbon-black with a specific surface area of 50-100 m/g -20-70; sulfates of alkaline-earth elements - 10-40, carbonates of alkaline-earth elements - 20-40. The method of production of the modular foamed glass with a usage of the foaming mixture provides for: a dispersion of the utilized glassbats up to the specific surface of 15000-20000 cm2/g; an addition to 95.0-99.8 mass % of the dispersed glassbats of 0.2-5.0 mass % of the foaming mixture; agitation at humidity of 1.2-1.5 mass %; granulation into particles with the diameter of no more than 2000 microns; a filling of the granules in the mold and their subcompaction up to a porosity of 0.35-0.55; sintering at the temperature of 600-750°C; a foaming at the temperature of 800-900°C, a hardening by temperature decrease to 550-650°C at the rate of 200°C /minute and annealing at the temperature of 500-600°C. |
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Method of production of calibrated granulated foamed glass / 2272005 Initial raw mixture is made from aqueous alkaline solution of sodium silicate in the amount of no less than 30-70 mass-% and broken glass powder of arbitrary chemical composition in the amount of 25-65 mass-%. This raw mixture is subjected to heat treatment to dehumidified state and powder-like charge and aqueous dispersion are prepared in presence of plasticizing agents. Product thus obtained is dried at dried at temperature of 450-500°C, pelletized and is held at foaming temperature within range of 800-850°C. |
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Foam decoration manufacturing method / 2276659 Invention relates to foam production technology and can be used manufacture of foam decoration. Invention aims at simplifying production technology and obtaining effective decorative heat-retention material for out-door and in-door facing of residential and industrial constructions. Method according to invention consists in grinding commercial broken glass to specific surface 5000-7000 cm2/g followed by moistening to moisture 8%. Thus obtained material is compacted on press at 20 MPa. Resulting samples are subjected to watering during thermomoist processing to form silanol water, which would favor swelling during heat treatment. Thermomoist processing conditions: temperature rise for 2 h, ageing at 85-95°C for 6 h, and cooling to 15-25°C for 3 h. Watered samples are coated with decorative layer using flooding technique and then subjected to heat treatment at 800°C followed by annealing. Finally obtained samples show density 350 kg/m3, bending strength 28 kg-force/cm2 and decorative glossy water-impermeable film 0.2-0.3 mm thick. |
 Method of production of foamed glass mat and device for realization of this method / 2299185Proposed method consists in applying the gas-forming agent on continuous band of film glass which is placed in mold layer by layer for obtaining the mat of required thickness. Then glass is heated and is foamed. Device proposed for realization of this method has two shafts, vacuum drum, unit for application of gas forming agent, spreader and mold. Unit for application of gas-forming agent may be made in spreader rollers. |
 Tunnel furnace / 2310616The invention is pertaining to the tunnel furnaces for production of the block lightweight building materials. The technical result of the invention consists in the increased furnace capacity. The tunnel furnace is made in the form of the double-level tunnel. Each level has the zones of foaming, quenching, stabilizing and annealing, the heaters power adjustment both from above and from below of each zone. In the tunnel furnace there are dollies for relocation of the molds. The lower heaters of each level are disposed in the form of two longitudinal rows, between which there is the central guide as the support for the dollies. The central guide is made in the form of the U-beam. Each dolly is supplied with the additional wheels: the central wheel mounted vertically and the front wheel mounted horizontally engaged from the inside with the horizontal ledge and the lateral ledges of the central guide. |
 Method of manufacturing of longlasting foamglass / 2332364Invention relates to method of manufacturing heat-insulating, foamy materials. Pieces of glass are melted, melted mass is degassed by keeping it at temperature 1450°C for 10-60 minutes and are cooled to 950-1200°C. Overheated water steam, obtained from degassed water is passed through melted mass for blowing of great number of bubbles of different diameter from melted glass. Glass bubbles are cut off into form with formation of blocks, baked at temperature 450-600°C and cooled. |
FIELD: manufacture of building materials.
SUBSTANCE: proposed method consists in applying the gas-forming agent on continuous band of film glass which is placed in mold layer by layer for obtaining the mat of required thickness. Then glass is heated and is foamed. Device proposed for realization of this method has two shafts, vacuum drum, unit for application of gas forming agent, spreader and mold. Unit for application of gas-forming agent may be made in spreader rollers.
EFFECT: reduced labor input; reduced power requirements.
4 cl, 3 dwg
The claimed method and device relate to the field of building materials industry and can be used to produce material based on glass with low thermal conductivity, sufficient strength and environmentally friendly for use in the construction of buildings and structures as insulation.
Widely known methods for producing laminated panels, including layer-by-layer stacking of glass and foaming the mixture in the form of heating and foaming the mixture (GB 1431086 And class. SW 19/08, publ. 07.04.1976).
The known device comprises rollers, pulling the ribbon of glass, devices for applying glass powder and a blowing agent to the surface of the ribbon of glass and the charge on the rollers, giving the edges of the ribbon of glass shape (GB 1217956 And class. SW 19/08, publ. 22.01.1968).
A disadvantage of the known method and the known device lies in the fact that they do not provide new material of low thermal conductivity with the same density layers.
This is because the method of producing foamed glass requires to produce the glass itself, then grind, then re-sintering with gasifier.
The device not having a stacker for layer-by-layer stacking of the glass and forms, has no possibility of obtaining stekloprokata.
The purpose of the invention is to eliminate the above problems is Atkov.
This objective is achieved in that in the method of obtaining stekloprokata blowing agent is applied on a continuous ribbon of film glass stacked in the form to obtain a Mat of the desired thickness, thereby obtaining stekloprom having the same density layers. Foaming of the blowing agent occurs due to the residual heat produced by the film of the glass.
Device for receiving stekloprokata in addition to the two seed beads, a special vacuum drum and a device for the application of gasifier contains stacker and shape.
Figures 1 and 2 show the device to obtain stekloprokata.
An example of the method. On the surface of the produced film glass was applied gasifier, one of the many used for the production of foam glass, and the glass was placed in layers in the form in which under the influence of the residual temperature of the glass was heaving.
A device for receiving stekloprokata consists of two or more seed beads 1, more than one special vacuum drum 2, the device for applying the gasifier 3, stacker 4 with the rollers 5 and form 6.
The device operates as follows.
The molten glass flows, emerging through the slit boats, picked up a pair of bare rollers 1 and stretches the I in a continuous thin ribbon of glass. Upon reaching the tape of the required thickness, the rollers disengage and further stretching is carried out by means of a special vacuum drum 2, which are devices for applying the gasifier 3, through which the blowing agent is uniformly applied to the surface of the glass. Then, the stacker 4 stacks layers of film glass blowing agent in the form 6, in which swelling occurs glasses and education stekloprokata, the size of which depends on the dimensions of the shape and the number of stacked layers of a film of glass.
Device for the application of gasifier can be made in the rollers 5 of the stacker.
Using the proposed method to obtain stekloprokata and device for its implementation reduces the complexity and intensity of the process and to obtain a new material with low thermal conductivity and uniform density throughout its layers.
1. The method of obtaining stekloprokata, including layer-by-layer stacking of sheet glass and blowing agent into a mold to obtain a Mat of the desired thickness, heating and foaming, characterized in that the blowing agent is applied on a continuous ribbon of film glass with getting stekloprokata having the same density layers.
2. The device is to obtain stekloprokata, containing bare cushions, stretching molten glass in a continuous ribbon, the device for causing the blowing agent to the surface of the ribbon of glass, characterized in that it contains more than two seed beads and more than one vacuum drum for pulling the tape film glass stacker for layer-by-layer stacking film glass blowing agent in the form, and the number of devices for applying the blowing agent is not less than the number of bare spots.
3. The device according to claim 2, characterized in that the device for applying the gasifier can be performed in one of the rollers of the stacker.
4. The device according to claim 2, characterized in that the device for applying the gasifier can be performed in the stacker rollers.