SI22474A - Recycling of glass wool residuals and residuals of concrete based on aggregate from lightweight expanded glass - Google Patents

Abstract

The essence of the invention is a new procedure of recycling waste glass wool residuals and residuals of concrete (1) based on aggregate from lightweight expanded glass by addition of a new liquid concrete phase into a mould (2) for casting over and filling void spaces (3) in the mould, which enables the production of new auxiliary products (4) for insulation and reduces the consumption of starting raw materials.

Description

RECYCLING OF GLASS WOOL AND CONCRETE RESIDENTS BASED ON LIGHT Blown Glass

The present invention relates to a new process for recycling unusable waste glass wool and unusable residues of concrete based on a light-blown glass aggregate. Useless glass wool and concrete residue are generated in the construction industry or other similar activity. It provides a new insulation material suitable for installation in industrial buildings, residential buildings or structures requiring thermal insulation. This is a field of chemical technology, namely glass wool scraps and concrete wastes, which are generated as construction debris or waste.

To date, the known solutions for the production of insulating materials, regardless of the raw material base, have not yet provided such solutions as proposed. The technical problem of the invention is how to protect the environment by a uniform technical process, the protection problem of the production of large volumes of volumetric waste of glass wool and concrete on the basis of light-blown glass aggregate, which is generated as construction waste, mainly in the construction industry. So far, it has been collected in cans or sacks in accordance with the Waste Management Regulations (Official Gazette RS, No. 3/03) and the Rules on Amendments to the Rules on Waste Management arising from Construction Works (Official Gazette RS, No. 50/04). Pursuant to Article lO of the Rules on the management of waste arising from construction works, the investor need not be ordered to take over from the collector of construction waste or to dispose of construction waste directly for recovery or disposal before construction waste is generated due to works for which works no permit is required under the building regulations, and the amount of construction waste during the entire period of construction works does not exceed the minimum amount shown in Table 1:

Type of waste Minimum quantity Concrete, brick, tiles, ceramics and gypsum based materials 5 m ³ Asbestos-based construction material 0,5 m ³ Wood, glass, plastic 5 m ³ Asphalt, tar and tar products 50, m ³ Metals 20 dm ³ Earth excavation 500 m ³ Isolated materials 1 m ³

Table 1: Types of waste and minimum quantity

These are small quantities that are exceeded on larger objects. Pursuant to Articles 12 and 13 of the said Regulations, the investor is thus left with the option of re-using construction waste or disposing of it himself if he is authorized to recycle or dispose of that waste in accordance with the regulation governing waste management.

In finding a solution, I came up with a unique solution, I came up with a process for obtaining new insulation material from the remnants of the mentioned materials, which have usefulness in the form of various panels, walls, models or as granular-granular form, suitable for laying as thermal insulation, both in horizontal plane or as an additive (filler) for the production of screeds, walls, ceilings. In this way, new insulation material manufactured according to the present process has gained versatility in the construction industry as a hard or loose material.

At the same time, the process allows us to destroy, in many ways, scraps of glass wool and concrete scraps on the basis of light-blown glass aggregate. To a large extent, this kind of waste is deposited in the landfills of authorized organizations, where they take up a lot of space.

In our case, we examined the possibilities of processing concrete and insulating materials (glass wool). Concrete residues in the construction of structures are generated at various stages of construction of the facility, as classic construction waste, which must be handled in accordance with the Rules for the management of waste arising from construction works. It treats insulated materials in the same way. Glass wool waste is generated as a waste in the insulation of buildings, where it is necessary to adapt to the individual dimensions of the building.

When designing a solution for recycling waste, glass wool and concrete residues based on light blown glass aggregate, I started from the well-known technical solutions of individual devices used in chemical technology for various technological processes such as grinding, tearing, pressing, cutting , crushing, mixing, sorting, gluing, drying, adding additives and the experience of manufacturers of insulating materials, concrete and construction companies, as well as in similar areas of scrap processing such as plastics, paper, experience in the recycling of automotive scrap. To this end, according to previous research and my invention, I have found that it is reasonable to provide a different process for recycling scraps of glass wool and concrete based on light-blown glass aggregate using known devices and to place them in the correct sequence of my process, which will give the desired result at the end, as evidenced by the patent application. It is a crucial finding that I have come up with a new insulation material that satisfies all the prescribed standards and provides versatile use while solving environmental problems. The present invention solves the cost and environmental burden of construction and other similar activities and enables authorized organizations where such waste is disposed of in one place to supplement the recovery activity.

I have found that there are patent applications addressing the recycling of certain types of waste and scrap of various materials, which are primarily related to the recycling of unnecessary paper and other residues of cellulose, plastics, waste rubber, including the recycling of useless polyurethane foam and textile residues generated in Textile industry, but no application solved the problem of recycling glass wool, light-blown concrete, the combination of these two materials alone, and more precisely defined some products from this recycled mixture.

In reviewing the inventions disclosed, the applicant is only aware of his process for granular recycling of polyurethane residues and concrete residues based on aggregate of light-blown glass of this kind of recycling solution. There are various technical solutions for recycling lines already mentioned, but for my object of protection or for the recycling of scrap glass wool and concrete from blown glass, I did not find a similarly reported solution except my own mentioned above. I will list some of the solutions already reported that demonstrate the innovativeness of the solution and serve as a defense element in proving my innovation:

IT BL92A000019, which provides a solution for the process of manufacturing rigid sheets of scrap paper, pulp and similar materials.

SI 20267 A also provides a solution for the use of cellulosic waste materials in connection with cement.

AT 1318/85 and AT 2896/85 deal with walls made of glass wool-filled formwork, which otherwise has similarities to the use in one of the useful forms of my insulation material,

EP 08429667 A2 deals with composite material in the manufacture of glass and mineral fibers of glass wool and as such has no contact with my patent,

To my knowledge, no manufacturer of such patented equipment has so far integrated into a single comprehensive system such or similar apparatus and in such a way that glass wool and concrete residues can be processed on the basis of a light-blown glass aggregate.

The novelty is especially in the use of combinations of glass wool insulation residues and residues of light-blown glass aggregate concrete; it is a new product made of glass wool scraps and light-blown concrete based residues. The newly created product is a commercial product for wide use due to the quality of its insulating properties.

The present invention solves the problem of the bonding of glass wool residues and crushed concrete residues on the basis of an aggregate of blown glass (or mass of residues of both materials), which can be mixed in a ratio of 50% by volume of residual and 50% by volume of the additive of liquid phase concrete lightweight blown glass aggregate. The optimum recommended ratio is up to 50% by volume of a scrap of lightweight concrete based on a lightweight blown glass aggregate and glass wool insulation residues and 50% by volume of a new liquid concrete based on a lightweight blown glass aggregate according to the manufacturer's instructions .

The basic idea of the invention comes from the possibility of recycling the mechanical and chemical recovery or recycling of the listed waste. In the experimental part I came to the following conclusions:

a) insulates material - glass wool for insulation of buildings can be recovered by mechanical crushing and the use of fresh concrete mass again in insulates material,

b) Concrete with light-blown glass aggregate can be re-processed into a recycled concrete product through mechanical crushing and technological treatment.

With the implemented solution, we return to the LCA (Life Cycle Assessment and LCCA Life Cycle Cost Analysis) product (construction semi-finished product) two materials and eliminate the construction waste of glass wool residues / insulates material and concrete based on light blown glass aggregate. On the basis of the state of the art and the manufacturing experiments carried out, I have confirmed certain advantages of the process according to the invention, which is evident in the simplicity of the process.

I will show the invention with the sketches as follows, because I think that it is so simple and that the necessary devices for its realization are in an unlimited number of versions in quality and capacity so that everyone can adapt it to their technological needs.

The invention is described in the following steps and figures, which show:

FIG. 1 mold filled with debris with crushed scrap of glass wool and concrete based on light blown glass aggregate up to 50% of the mold volume,

FIG. 2 insulators panel made of scrap glass wool insulation and lightweight blown concrete.

Process steps:

a) crushing construction residues of insulation from glass wool and concrete based on light blown glass aggregate into a shredder of size 1 dm ³ to 5 dm ³ ,

b) pouring the mixed residue into the mold up to 50% by volume,

c) pouring of residues (glass wool, concrete, mixed, two variants are possible: only concrete scrap based on light blown glass, or a combination of both concrete and glass wool in different proportions) with the fresh concrete mass of the manufacturer's existing recipe into the mold;

d) drying and curing of the new product in accordance with the instructions of the manufacturer of the binder used - light-blown concrete,

e) cutting into desired dimensions of standard dimensions.

The recycling process is carried out by mechanically crushing the residues of glass wool insulation and concrete waste on the basis of an aggregate of blown glass into a shredder / granulate (1), e.g. from 1 dm ³ to 5 dm ³ and fill the mold with a maximum of 50% of the mold volume (2). Figure 1 represents a mold filled with a shredder of construction waste insulation of glass wool and concrete based on a light-blown glass aggregate. Pour the granules / granules with fresh liquid raw material on the basis of aggregate of lightly blown glass according to the manufacturer's recipe, regardless of the type of concrete recipe, since it serves as a binder for the crusher. The binder pours residues or mixture of residues and fills the space in the mold (3), 100% pouring and binding the residues in the closed mold (2) e.g. 3 m ³ size is possible by slightly shaking the mold to fill the space between the crusher. Pouring the crushed stone and drying the mass in a closed mold allows for hard bonding. The mixture of residues and new mass is allowed to dry in a mold for 72 hours to cure according to the manufacturer's instructions on the basis of a light-blown glass aggregate and after drying and curing it is cut into panels (4) of the desired standard dimensions as a new insulating material. The resulting product is cut into panels (4) of the desired standard dimensions as shown in Figure 2. It is a matter of making panels intended for insulation, e.g. screed in the house, insulation of houses. The product thus obtained is suitable as an insulator in the construction industry.

The invention solves:

The problem of construction waste accumulation

The problem of accumulation of construction waste in municipal landfills

The problem is reducing the cost of construction waste disposal

The problem solves the consumption of the raw material and returns it for further use in construction

Claims (1)

PATENT APPLICATIONS 1. A process for the recycling of glass wool scrap and residues of light-blown concrete aggregate based on the manufacture of new insulating material, a variety of rigid panels for a wide variety of applications and molded products, in particular for thermal insulation of various rooms, as well as for use in the construction industry is designed to use raw materials such as glass wool insulation residues (1) and residues of light-blown glass aggregate (l) and mixtures thereof, which are first roughly broken into smaller particles, and filled with mold (2), characterized in that residues of glass wool insulation (l) and residues of concrete based on light blown glass aggregate (2) are crushed and molded up to 50% of the mold volume (2) and used as a binder liquid concrete mass on the basis of aggregate of light-blown glass according to the recipe of the manufacturer, which pours up to 100% of the mold volume the residue or mixture of residues and fills the space in the mold (3), and allow to dry i n curing of new material according to the concrete manufacturer's instructions based on light-blown glass aggregate and after drying and curing, cut into panels (4) of the desired standard dimensions as new insulating material.