JP4991979B2 - Industrial waste glassware - Google Patents

Description

  The present invention relates to a glass product obtained by mixing other industrial waste with a residue discharged in a polishing process such as an optical lens and performing high-temperature pressure treatment.

    In recent years, with the development of optical technology industries such as electronic cameras and video cameras in addition to cameras, the need for optical lens consumption has increased. Conventionally, there has been a problem in the processing of industrial waste of polishing slurry containing an abrasive that is generated in large quantities by a glass cutting / polishing process during processing of a general optical lens. These optical glasses contain inorganic compounds of heavy metals such as lead, and the polishing slurry contains abrasives, which cannot be disposed of as they are and are usually buried in a managed landfill. It is. For this reason, the processing cost is high. On the other hand, industrial waste treatment methods and solutions have been demanded in the industry. Optical glass vendors want to reuse these polishing slurries, but there has been no suitable recycling method in the past.

In addition to optical glass, hazardous waste such as molten slag discharged from a garbage incinerator is solidified with concrete and landfilled. However, life improvement and industrial development have become enormous in volume for general industrial waste, and disposal of such waste has become a big problem for local governments. In addition, also it has become a problem processing your Keru harmful substances in a landfill. There is a need for safeguards other than waste when disposed of.

JP 2000-192585 A JP, 2002-18409, A These processing methods of patent documents 1 are solidified by adding cement etc. to incineration waste of garbage, and are characterized by having formed many holes, The cement deteriorated over a long period of time, and the extract sometimes exudes. In addition, the treatment method of Patent Document 2 is a process that adds various kinds of additives to waste such as garbage, and is costly. In particular, in the past, landfill treatment by solidification of the concrete has had a problem with harmful treatment that has caused soil and water pollution due to concrete deterioration for a long time.

Thus, it was necessary not to discard the polishing slurry generated by the cutting and polishing operation of optical glass that has been conventionally discarded as industrial waste.
An object of the present invention is to provide a glass product that reuses a polishing slurry of a general lens optical glass and other molten slag discharged from a garbage incinerator.
Another object of the present invention is to provide a glass product by reusing a polishing slurry of optical glass of waste, which effectively utilizes a kiln processed material embedded as industrial waste.

In order to achieve the above object, the present invention according to claim 1 is characterized in that 10 to 40% by weight of a polishing slurry containing glass scraps and an abrasive generated by cutting and polishing optical glass , a bottle, a plate glass, and a lighting fixture. glass, household appliances glass, automotive glass and construction glass, the other 10 to 40% by weight of waste glass of the glass products, 20 to 40% by weight of the molten slag discharged from the waste incineration plant, crockery, pottery, tiles, tile of the kiln The raw material formed by mixing the modified material at a rate of 10 to 20% by weight is pulverized, pressed and dried at 10 to 25 tons, and this molded product is heated at a temperature of 100 ° C. per hour in a continuous melting furnace. Industrial waste characterized in that it is heated up to 800-1200 ° C., heated and sintered at 800-1200 ° C. for 1 hour, and after several hours, left to cool slowly to 50-60 ° C. The gala To provide a product.

In order to achieve the above object, the present invention according to claim 2 is a glass product of industrial waste according to claim 1, wherein grinding slurry , waste glass, molten slag, kiln modified material, etc. are pulverized to 10 mm or less. It is characterized by using as a raw material.

In order to achieve the above object, the present invention according to claim 3 is characterized in that 10 to 40% by weight of a polishing slurry containing glass scraps and an abrasive generated by cutting and polishing optical glass , a bottle, a plate glass, and a lighting fixture. Waste glass of glass, home appliance glass, automobile glass, construction glass, and other glass products, 10-40% by weight , molten slag discharged from the garbage incinerator, 20-40% by weight , and pottery, ceramics, straw, tile kilns The raw material formed by mixing the modified material at a rate of 10 to 20% by weight is pulverized, pressed and dried at 10 to 25 tons, and this molded product is heated at a temperature of 100 ° C. per hour in a continuous melting furnace. Industrial waste characterized in that it is heated up to 800-1200 ° C., heated and sintered at 800-1200 ° C. for 1 hour , and after several hours, left to cool slowly to 50-60 ° C. Glass To provide a process for the production of goods.

When producing the glass product of the present invention, two or more kinds of optical slurry, waste glass, molten slag, and kiln modified material are individually pulverized to obtain raw materials. These mixing ratios are mixed at an optimum ratio for the intended use.
% By weight
Optical glass slurry 10-40%
Waste glass 10-40%
Molten slag 20-40%
Waste ceramics 10-20%
These are mixed, put into a mold, and press-molded with a press. This molded product is naturally dried, and a product that has been completely dried in a few days is put into a melting furnace and heated and sintered at a high temperature.

When the mixture is put into a mold and molded, it is pressure-molded with a press machine at 10 to 25 t. At this time, it is a feature of the present invention that it is not necessary to use molding aids, additives and other raw materials at all.
The pressure molded product is dried. At this time, natural drying for 24 hours may be performed, but it is also possible to completely dry with a drying apparatus.
The dried molded product is put into a continuous melting kiln and heated to melt sintering at 800 ° C to 1200 ° C. Melt sintering is performed at an optimum temperature for about 1 hour.
This is taken out from the kiln and naturally cooled to 50-60 ° C. to make a product.

    The glass product thus produced becomes a glass product that is safe, has excellent acid resistance, and has water permeability because the harmful substances are completely trapped by the glass melt.

  A mixture of a glass product of the present invention, in which a predetermined amount of colored glass cullet is mixed with the optical glass cutting waste and polishing waste polishing slurry of a general lens, has a melting temperature of 1250 to 1500 in an electric melting furnace. A range of ° C is suitable. The softening point of log η = 7.6 is 727 ° C., or the annealing point (log η = 13.0) is 585 ° C., and the recycled glass product of the mixture of the polishing slurry and the glass cullet is a general gas melting furnace or electric melting. It can be produced in a melting furnace such as a furnace and a slow cooling furnace.

These raw materials are mixed with scraps of transparent glass such as window glass or cullet waste of colored glass such as general beer bottles and wine bottles at an arbitrary ratio with the above-mentioned polishing slurry, and are heated to 1450 ° C. in an electric melting furnace. It is held and dissolved, poured into a mold, and molded into a predetermined mold.

      The raw materials used for the production of the glass products of the present invention are bottles, plate glass, lighting equipment glass, household appliance glass, automobile glass, construction glass, and other glass products, in addition to optical lens slurry and residues discharged in the optical lens production process. Waste glass, molten slag discharged from garbage incinerators, pottery, pottery, tiles, etc. These raw materials are pulverized to have a uniform particle size, mixed, pressed and dried.

The glass product of the present invention can be used as a decorative item for roads and buildings without burying molten slag discharged from industrial waste incinerators, etc. in landfills. Contribute greatly. In particular, the conventional landfill treatment by solidification of the concrete has had a problem in the treatment of harmful substances causing soil and water pollution due to deterioration of the concrete for a long time. In the case of the glass product of the present invention, optical glass, glass Since the surface of the molten slag is coated with scraps or the like by high-temperature treatment, it is possible to prevent harmful substances from eluting. Moreover, the aesthetic effect of the glass component is excellent.
It can be used for interiors and exteriors of buildings as well as outdoor glass blocks, tile materials, brick materials, decorative members, and the like.

An embodiment shown in the drawing of the glass product of the present invention will be described.
FIG. 1 is a flowchart of an embodiment of a glass product manufacturing process according to the present invention.

The manufacturing process of the glass product of this invention is demonstrated based on FIG.
First, each of optical lens slurry, waste glass, molten slag, and kiln modified material containing cutting and polishing glass scraps and abrasives generated in the manufacturing process of general optical glass cutting and polishing of lenses is crushed. . Preferably it is 10 mm or less. These are mixed in a predetermined ratio.

The mixture is pressed. Molding a daily natural drying, placed in a continuous melting furnace, and heated raised until 800 to 1200 ° C. at a temperature increase per hour 100 ° C., for 1 hour melt sintered at this 800 to 1200 ° C.. Thereafter, it is gradually cooled to 50 to 60 ° C. to obtain a product. In the inspection process F, inspection is carried out by visual inspection or other inspection devices, and the products are packaged and shipped.

Molten slag discharged from the incinerator, glass waste discharged from the incineration plant, and optical glass polishing slurry generated in the cutting / polishing process of optical glass are put in a dryer and mixed in the dryer at 100 ° C. for 1 to 7 days. Dry completely. Dry thoroughly to accurately determine the weight of each material.
The dry powder is aged to make the particle size uniform. Mix the molten slag, glass waste, and optical glass polishing slurry, which are made uniform, at a predetermined ratio and stir well. Add 12 to 15% by weight of water as a binder to the stirred mixture and knead well. This is put into a mold and subjected to pressure molding, and the molded product is naturally dried for 1 to 7 days.

40% of molten slag discharged from the incinerator, 30% of glass waste discharged from the incineration plant, 20% of optical polishing slurry generated in the optical lens cutting / polishing step, and 10% of kiln modified material are mixed. To this, 12 to 15% by weight of water is poured as a binder, and the mixture is stirred well. It is naturally dried for 1 to 7 days, put in a melting kiln, heated up to 800 to 1200 ° C. at a temperature increase of 100 ° C. per hour, and melt-sintered at 800 to 1200 ° C. for 1 hour. Thereafter, it is gradually cooled to 50 to 60 ° C.

  As the polishing slurry, there are various components depending on the type of optical glass. Therefore, a slurry that can be used as a glass product by changing the mixing ratio of cullet according to the component of the polishing slurry is obtained.

    By mixing molten slag and kiln modified material into optical lens polishing slurry and waste glass, the range of melt sintering temperature is widened, and it is very easy to manufacture a product. Further, a colored glass product can be obtained by mixing a colored cullet into the mixture.

Table 1 shows embodiments of various mixing ratios of the glass product of the present invention.

It is a flowchart of embodiment of the manufacturing process of the glass product of this invention.

Claims (3)

10 to 40% by weight of polishing slurry containing glass scrap and abrasives generated by cutting and polishing optical glass , bottles, plate glass, lighting equipment glass, home appliance glass, automobile glass, construction glass, and other glass products 10 to 40 wt% of the waste glass, 20 to 40 wt% of the molten slag discharged from incinerators, crockery, porcelain, tiles, raw materials kiln varying workpiece tiles formed by mixing at a ratio of 10 to 20 wt% , Crushed and pressure-molded at 10 to 25 tons, dried, and this molded product was heated up to 800 to 1200 ° C. at a temperature increase of 100 ° C. per hour in a continuous melting furnace, and 1 at 800 to 1200 ° C. A glass product of industrial waste, characterized in that it is heated and sintered for a period of time, and after several hours, left to cool slowly to 50 to 60 ° C. 2. The glass product of industrial waste according to claim 1, wherein the polishing slurry , the waste glass, the molten slag, the kiln modified material and the like are pulverized to 10 mm or less. 10 to 40% by weight of polishing slurry containing glass scrap and abrasives generated by cutting and polishing optical glass , bottles, plate glass, lighting equipment glass, home appliance glass, automobile glass, construction glass, and other glass products Raw material made by mixing 10 to 40% by weight of waste glass, 20 to 40% by weight of molten slag discharged from a garbage incineration plant, and 10 to 20% by weight of pottery materials, ceramics, straw, and tiles. , Crushed and pressure-molded at 10 to 25 tons, dried, and this molded product was heated up to 800 to 1200 ° C. at a temperature increase of 100 ° C. per hour in a continuous melting furnace, and 1 at 800 to 1200 ° C. A method for producing a glass product of industrial waste, characterized in that it is heated and sintered for a period of time, and after a few hours, it is left to cool slowly to 50 to 60 ° C.