CN101643316A - Method for producing U-shaped glass by taking waste glass as raw material - Google Patents
Method for producing U-shaped glass by taking waste glass as raw material Download PDFInfo
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- CN101643316A CN101643316A CN200910094932A CN200910094932A CN101643316A CN 101643316 A CN101643316 A CN 101643316A CN 200910094932 A CN200910094932 A CN 200910094932A CN 200910094932 A CN200910094932 A CN 200910094932A CN 101643316 A CN101643316 A CN 101643316A
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Abstract
The invention provides a building U-shaped glass produced by taking waste glass as raw material, which is characterized by comprising chemical components with the mass ratio: 71.50-72% of SiO2, 1.20-1.30% of Al2O3, 0.15-0.20% of Fe2O3, 8.50-11.20% of CaO, 2.50-3.50% of MgO and 14.00-16.50% of Na2O. The doping quantity of the waste glass can be greatly increased and even approaches to 100%, so thatthe waste glass which is the industrial waste can be fully utilized, and the problems of environmental stress caused by the waste glass, land resource occupation and the like are fundamentally solved; meanwhile, as the using quantity of the waste glass is increased, the cost of raw materials of the production enterprises can be reduced, and smelting energy consumption is lowered; furthermore, themelting point of the waste glass is far lower than that of quartz sand, so that considerable economic and social benefits are brought to the production enterprises and the society. Therefore, the building U-shaped glass can ensure the glass shaping property, is beneficial to improving the finished product ratio and reducing the rejection rate, improves the quality of products, and protects the environment.
Description
Technical field
The present invention relates to a kind of production method of architectural shape glass, especially a kind of is the method for raw material production U type glass with the discarded glass, belongs to field of glass production technology.
Technical background
China has more than 1,200 ten thousand tons of waste and old glass cullet not obtain science, high-end reconstituted product utilization every year.And the major part of waste and old glass cullet is a low side poor quality raw product again, confuses as solid waste usually to be dropped in all kinds of rubbish or buried, not only causes serious environmental to pollute, and has also wasted valuable glass resource.
Existing glass as sheet glass, domestic glass, ambetti, electronic glass, vehicle glass etc., is numerous in variety, and style is numerous and diverse.But any glass all be unable to do without the most basic process of glass, that is to say that any glass in the world all must be through batching, various raw materials are mixed into admixtion, dropping into melting furnaces is glass metal through the above high temperature melting of 1460C, again through clarification row bubble, be cooled to the required temperature of moulding gradually, moulding and annealing then promptly gets glassy product.But in existing process of glass method, the utilization ratio of waste and old glass cullet is all very low.In order to save the limited natural resource, comprehensive utilization of resources is all advocated in countries in the world, and China is no exception, same advocate " recycling economy promotion law ".Waste and old glass cullet then are best recycling economy products, utilize waste and old broken broken glass to produce architectural shape in a large number, and also can say so one turns waste into wealth, and reduces the important channel of enterprise cost.
At present, for saving the energy, all need in the raw material (being raw material) of glass production, allocate a certain amount of glass cullet (also claiming grog) into usually.But because the adding of glass cullet, can cause material property embrittlement, even produce a large amount of bubbles, thereby reduce the glassy product quality, make its strength reduction, even directly can't produce because of the processability extreme difference, so the existing glass cullet amount of allocating into can only account for 15~25% of total raw material quality, otherwise will cause that glass structure changes, and such amount of allocating into far is difficult to satisfy energy-saving and cost-reducing requirement, make a large amount of glass cullet still based on air storage, both take valuable land resources, and caused serious environmental to pollute again, therefore, be necessary fully prior art is improved, developing and developing neither influences quality product, can maximally utilise this waste resource of glass cullet again, and making it turns waste into wealth, alleviate the environmental stress of society, for enterprise also is that society's creation is higher, better benefit.
Summary of the invention
The object of the present invention is to provide a kind of building U type glass.
It is the method for raw material production building U type glass with the discarded glass that another object of the present invention is to provide a kind of.
First purpose of the present invention realizes by following technical proposal: a kind of building U type glass is characterized in that being made up of the chemical ingredients of following mass ratio:
SiO
2????71.50~72%
Al
2O
3???1.20~1.30%
Fe
2o
3???0.15~0.20%
CaO?????8.50~11.20%
MgO?????2.50~3.50%
Na
2O????14.00~16.50%。
Second purpose of the present invention realizes by following technical proposal: a kind of is the method for raw material production building U type glass with the discarded glass, comprise feed intake, melt, clarification, moulding, annealing process step, before it is characterized in that feeding intake by following mass ratio batching:
Quartz sand 0~40%
Soda ash 0~13%
Feldspar 0~4%
Wingdale 0~4%
Rhombspar 1~8%
Sodium sulfate 0.4~4%
Discarded glass 30~95%.
Described quartz sand, soda ash, feldspar, Wingdale, rhombspar, sodium sulfate are commercial raw mineral materials and Chemicals.
Described discarded glass is anticipated through following technology: (1) carries out discarded glass to sieve after the fragmentation; (2) after the discarded glass after will sieving carried out branch Pick removal of impurities, water cleaned.
Building U type glass of the present invention prepares by following method:
A, by following mass ratio batching:
Quartz sand 0~40%
Soda ash 0~13%
Feldspar 0~4%
Wingdale 0~4%
Rhombspar 1~8%
Sodium sulfate 0.4~4%
Discarded glass 30~95%
Above-mentioned quartz sand, soda ash, feldspar, Wingdale, rhombspar are mixed into a expects standby;
It is standby that above-mentioned sodium sulfate and discarded glass are mixed into the b material;
In B, the raw material input smelting furnace, after carrying out melting, clarification, homogenizing under 1400~1500 ℃ of temperature, introduce on the glass shaper, be suppressed into the glass band, become U type glass band through the drawing flanging again the A step;
C, B step forming U type glass band is sent into annealing furnace, speed with 3.8 meters/minute, under 570 ℃, 560 ℃, 550 ℃, 540 ℃, 530 ℃ temperature condition, carry out gradient cooling successively, be cooled to 120 ℃ afterwards and go out annealing furnace, be cooled to 45 ℃ with high wind afterwards, and cut-out promptly gets architectural shape---U type glassy product as required.
Technological difficulties to be solved by this invention are: how to ensure that glassy product can be because of the adding of waste and old glass cullet, and cause material property embrittlement, even produce a large amount of bubbles, thereby influence glass ware forming, reduce under the prerequisite of glass quality, improve the glass cullet incorporation as far as possible, and composition of raw materials provided by the invention neither can cause material property embrittlement, also can not produce a large amount of bubbles, and processability is good, for production high quality glass product provides reliable guarantee.
The present invention compared with prior art has following advantage and effect: adopt such scheme; can improve the discarded glass incorporation largely; even can be near 100%; this trade waste of discarded glass is fully utilized; problems such as environmental stress that discarded glass brought and land occupation resource have fundamentally been solved; the increase of discarded glass consumption simultaneously; also can reduce the raw materials cost of manufacturing enterprise; reduce the melting energy consumption; because of the fusing point of discarded glass fusing point far below quartz sand; thereby bring considerable economic and social benefit for manufacturing enterprise and society; the present invention can ensure the glass ware forming performance, helps improving yield rate, the rate of reducing the number of rejects and seconds; improve the quality of products the protection environment.
Architectural shape U type glass provided by the invention is a kind of printing opacity and the novel wall material do not had an X-rayed mainly is to be used in the production of architectural shape glass.Through production practice for many years and theoretical investigation, develop to be the method for main material production U type glass with waste and old glass cullet fully, it has not only realized resource regeneration, and the architectural shape glass of producing meets " the U type glass for building " of national standard fully.Thoroughly solved the pollution problem of cullet to environment.Section bar glass has the characteristic of self in addition, can not apply mechanically conventional processing method and composition of raw materials, but use method of the present invention the discarded glass of different ratios is compared test and product composition chemical examination, optimum feed stock formula range and best product chemical ingredients scope have been drawn, as long as the product of producing in described composition of raw materials scope can both satisfy product chemistry composition range, and quality product is up to standard fully, and this is the innovation place of present patent application just.
The composition of raw materials that the invention provides can be applicable on the method for the various production glass of prior art and goods thereof, as above daraf(reciprocal of farad), glass tube down-drawing, horizontal sheet process, rolling process and float glass process etc.Realized the regeneration of the discarded glass body of different ratios.Through predesigne: per 1 ton of discarded glass can obtain 50 square metres of U type glass, and there are 1,200 ten thousand tons of discarded glass in the whole nation every year, can obtain 600,000,000 square metres U type glassy product after all utilizing.
Embodiment
Below by embodiment the present invention is described further.
Embodiment 1
A, the discarded glass of purchase is carried out following anticipating: (1) is adopted conventional crusher that discarded glass is carried out fragmentation and is sieved; (2) behind the foreign material in the discarded glass after branch Pick goes out to sieve, water cleans up, and is standby;
B, in the 500Kg raw material, by following mass parts batching:
Quartz sand 199.18kg
Soda ash 63.71kg
Feldspar 19.41kg
Wingdale 19.78kg
Rhombspar 43.91kg
Sodium sulfate 4.01kg
Discarded glass 150kg
Above-mentioned quartz sand, soda ash, feldspar, Wingdale, rhombspar are mixed into a expects standby;
It is standby that above-mentioned sodium sulfate and discarded glass are mixed into the b material;
C, the raw material of B step is dropped in the glass-melting furnace of prior art, process control condition under 1428 ℃ of temperature, is introduced glass on the U type glass shaper of prior art through operations such as melting, clarification, homogenizing, leader routinely, be pressed into the glass band, become U type glass band through the drawing flanging again;
D, C step forming U type glass band is sent in the conventional annealing kiln of prior art, transfer rate with 3.8 meters/minute, under 570 ℃, 560 ℃, 550 ℃, 540 ℃, 530 ℃ temperature condition, carry out gradient cooling successively, be cooled to 120 ℃ and go out annealing furnace, be cooled to 45 ℃ with high wind afterwards, and, promptly getting architectural shape by 5 meters requirements cut-outs---U type glassy product, its product Chemical Composition is as follows: SiO
2: 71.69%, Al
2O
3: 1.20%, Fe
2o
3: 0.17%, CaO:9.08%, MgO:3.20%, Na
2O:14.68%.
Table 1 has provided the composition of raw materials of embodiment 2-8, and table 2 has provided the U type glassy product Chemical Composition of embodiment 2-8 correspondence, and preparation technology is with embodiment 1.
Table 1
Sequence number | Discarded glass (Kg) | Quartz sand (Kg) | Feldspar (Kg) | Wingdale (Kg) | Rhombspar (Kg) | Soda ash (Kg) | Sodium sulfate (Kg) |
??2 | ??200(40%) | ??170.72 | ??16.64 | ??16.95 | ??37.63 | ??54.62 | ??3.44 |
??3 | ??250(50%) | ??142.27 | ??13.86 | ??14.14 | ??31.36 | ??45.51 | ??2.86 |
??4 | ??300(60%) | ??113.82 | ??11.09 | ??11.30 | ??25.09 | ??36.41 | ??2.29 |
??5 | ??350(70%) | ??85.36 | ??0 | ??8.48 | ??18.82 | ??27.31 | ??10.03 |
??6 | ??400(80%) | ??56.92 | ??5.50 | ??0 | ??12.50 | ??18.21 | ??6.87 |
??7 | ??450(90%) | ??28.46 | ??0 | ??2.82 | ??6.27 | ??0 | ??12.45 |
??8 | ??475(95%) | ??0 | ??0 | ??0 | ??6.50 | ??0 | ??18.50 |
Table 2
Sequence number | The discarded glass ratio | ??SiO 2 | ??Al 2O 3 | ??Fe 2O 3 | ??CaO | ??MgO | ??Na 2O |
??2 | ??40% | ??71.87 | ??1.28 | ??0.17 | ??9.54 | ??3.10 | ??15.12 |
??3 | ??50% | ??71.87 | ??1.28 | ??0.18 | ??9.81 | ??3.00 | ??15.29 |
??4 | ??60% | ??71.86 | ??1.28 | ??0.18 | ??10.07 | ??2.90 | ??15.44 |
??5 | ??70% | ??71.85 | ??1.27 | ??0.19 | ??10.32 | ??2.80 | ??15.60 |
??6 | ??80% | ??71.84 | ??1.27 | ??0.19 | ??10.59 | ??2.70 | ??15.76 |
??7 | ??90% | ??71.84 | ??1.26 | ??0.20 | ??10.84 | ??2.60 | ??15.91 |
??8 | ??95% | ??71.83 | ??1.26 | ??0.20 | ??11.11 | ??2.50 | ??16.07 |
Claims (4)
1, a kind of is the building U type glass of raw material production with the discarded glass, it is characterized in that being made up of the chemical ingredients of following mass ratio:
SiO
2????????71.50~72%
Al
2O
3???????1.20~1.30%
Fe
2o
3???????0.15~0.20%
CaO?????????8.50~11.20%
MgO?????????2.50~3.50%
Na
2O????????14.00~16.50%。
2, a kind of as claimed in claim 1 be the method for raw material production building U type glass with the discarded glass, comprise feed intake, melt, clarification, moulding, annealing process step, before it is characterized in that feeding intake by following mass ratio batching:
Quartz sand 0~40%
Soda ash 0~13%
Feldspar 0~4%
Wingdale 0~4%
Rhombspar 1~8%
Sodium sulfate 0.4~4%
Discarded glass 30~95%.
3, as claimed in claim 2 is the method for raw material production building U type glass with waste and old glass cullet, it is characterized in that specifically passing through following process steps:
A, by following mass ratio batching:
Quartz sand 0~40%
Soda ash 0~13%
Feldspar 0~4%
Wingdale 0~4%
Rhombspar 1~8%
Sodium sulfate 0.4~4%
Discarded glass 30~95%
Above-mentioned quartz sand, soda ash, feldspar, Wingdale, rhombspar are mixed into a expects standby;
It is standby that above-mentioned sodium sulfate and discarded glass are mixed into the b material;
In B, the raw material input smelting furnace, after carrying out melting, clarification, homogenizing under 1400~1500 ℃ of temperature, introduce on the glass shaper, be suppressed into strip, become the U type through the drawing flanging again the A step;
C, B step forming U type glass Tapes is sent into annealing furnace, speed with 3.8 meters/minute, under 570 ℃, 560 ℃, 550 ℃, 540 ℃, 530 ℃ temperature condition, carry out gradient cooling successively, be cooled to 120 ℃ afterwards and go out annealing furnace, be cooled to 45 ℃ with high wind afterwards, and cut-out promptly gets architectural shape---U type glassy product as required.
4, as claimed in claim 2 is the method for raw material production building U type glass with waste and old glass cullet, and it is characterized in that described discarded glass anticipates through following technology: (1) carries out discarded glass to sieve after fragmentation; (2) after the discarded glass after will sieving carried out branch Pick removal of impurities, water cleaned.
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CN200910094932A CN101643316B (en) | 2009-09-04 | 2009-09-04 | Method for producing U-shaped glass by taking waste glass as raw material |
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CN200910094932A CN101643316B (en) | 2009-09-04 | 2009-09-04 | Method for producing U-shaped glass by taking waste glass as raw material |
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CN101643316A true CN101643316A (en) | 2010-02-10 |
CN101643316B CN101643316B (en) | 2012-09-05 |
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ID=41655405
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