CN108793755A - A kind of devitrified glass and preparation method thereof - Google Patents
A kind of devitrified glass and preparation method thereof Download PDFInfo
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- CN108793755A CN108793755A CN201810856304.6A CN201810856304A CN108793755A CN 108793755 A CN108793755 A CN 108793755A CN 201810856304 A CN201810856304 A CN 201810856304A CN 108793755 A CN108793755 A CN 108793755A
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C10/00—Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition
- C03C10/0063—Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition containing waste materials, e.g. slags
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B32/00—Thermal after-treatment of glass products not provided for in groups C03B19/00, C03B25/00 - C03B31/00 or C03B37/00, e.g. crystallisation, eliminating gas inclusions or other impurities; Hot-pressing vitrified, non-porous, shaped glass products
- C03B32/02—Thermal crystallisation, e.g. for crystallising glass bodies into glass-ceramic articles
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Abstract
The invention discloses a kind of devitrified glasses, and by mass percentage, which becomes：Ferrochrome slag 88-92wt%, fluxing agent 5-7wt%, fining agent 2.2-4.4wt%, KOH 0.5-1.5wt%.The present invention also provides the preparation method of above-mentioned devitrified glass, this method by batch mixing, heating melting, moulding by casting, annealing, Crystallizing treatment and etc. be prepared.Devitrified glass produced by the present invention has preferable wearability, corrosion resistance and shock resistance, and solves the problems such as environmental pollution of existing ferrochrome tailing, safety problem.
Description
Technical field
The present invention relates to microcrystal glass material technical fields, and in particular to a kind of devitrified glass and preparation method thereof.
Background technology
Devitrified glass is also known as microcrystalline jade or glass-ceramic, is comprehensive glass, and it is novel to be that a kind of foreign country has just developed
Construction material, its scientific name are called glass quartz.Devitrified glass and our common glass seem to differ widely.It has glass
The double grading of glass and ceramics, the atomic arrangement inside simple glass be do not have the reason of well-regulated, this is also Glass breadks easily it
One, and devitrified glass is made of, that is to say, that its atomic arrangement is regular as ceramics crystal.So crystallite
Glass is higher than the brightness of ceramics, stronger than glass toughness, and composition includes silicate.
Tailing is one of the product of separation operation in ore dressing, and in the product of this operation, the content of useful component is minimum,
It is the mine that should not be further sorted under current condition of technology and economy.Most composition is silicic acid in general tailing
Salt, it is much like with cast stone and the required ingredient of devitrified glass, thus be possible to add part chemical industry as raw material using tailing
Raw material and prepare high abrasion, acid and alkali-resistance corrode, impact-resistant devitrified glass replace cast stone.It is domestic to use rare earth tail through having
Mine, flyash, iron tailings etc. prepare the report of devitrified glass.
As CN101024554A is disclosed, a kind of rich rare earth, niobium, fluorite is dilute selects tailing microcrystal glass and manufacturing method, belongs to
In the comprehensive utilization of trade waste.Feature is：The raw material for preparing of the devitrified glass selects tailing, quartz sand, chemical group to be dilute
At being by weight percentage：SiO2 30-70%, CaO 5-20%, Al2O35-15%, CaF2 3-15%, ReO 3-15%, Nb2O5
0-5%, TiO2 0-10%。
And a kind of microcrystalline glass prepared from desulphurized and preparation method thereof is disclosed in CN102167516A, it is to use desulfurized powder
Coal ash (30-65wt%), through dispensing, mixing, be melted, molding, annealing, nucleus crystallization, be cold worked.Product main component
For：SiO2(50-60%), Fe2O3(1-2.5%), Al2O3(3-10%), CaO (20-30%), MgO (1-9%), Na2O(5-
10%).
And devitrified glass is prepared using the tailing of slag containing ferrochrome and is not yet reported that.And ferrochrome slag belongs to weight toxicity waste,
A large amount of soils are not only taken up, and cause seriously to pollute.Therefore preparing devitrified glass by using ferrochrome slag has important meaning
Justice.
Invention content
The present invention provides a kind of devitrified glass and preparation method thereof, devitrified glass obtained have preferable wearability,
Corrosion resistance and shock resistance, and solve the problems such as environmental pollution of existing ferrochrome tailing, safety problem.
It is of the existing technology in order to solve the problems, such as, it adopts the following technical scheme that：
A kind of devitrified glass, by mass percentage, the glass raw material group become：Ferrochrome slag 88-92wt%, fluxing agent 5-7wt%,
Fining agent 2.2-4.4wt%, KOH 0.5-1.5wt%, and prepared using following methods：
（1）The desired amount of ferrochrome slag, fluxing agent and fining agent are crushed, and ferrochrome slag, fluxing agent and fining agent after sieving are thrown
Enter batch mixer to be sufficiently mixed, obtains devitrified glass basis batch；
（2）Mixed devitrified glass basis batch is preheated into 30-40min at 650 DEG C, is added in high temperature furnace and is melted
Change, fusion temperature is 1300-1400 DEG C, keeps the temperature 40-60min, and KOH is then added, is first warming up to 1500 with the speed of 5 DEG C/min
DEG C, 30-50min is kept the temperature, is then cooled to 1350 DEG C again with the speed of 8 DEG C/min, 20-30min is kept the temperature, waits for that melt is uniform, clear
Qualified glass metal is formed after clear；
（3）Uniform, clear glass metal is poured into preheated mold, after glass metal molding after after be sent into Muffle furnace in anneal
Processing, obtains parent glass plate；
（4）Molding parent glass plate is sent into resistance furnace and carries out crystallization, the technical process of crystallization is as follows：In 520-650 DEG C of stove
Inside holding 1-2h；Then it is warming up to 740-780 DEG C with≤5 DEG C/min, keeps the temperature 2-4h；Then 820- is warming up to≤5 DEG C/min
850 DEG C, keep the temperature 1-2h；Then it is warming up to 930-950 DEG C with 10-14 DEG C/min, keeps the temperature 0.5-1h；Then with 15-20 DEG C/min
It is cooled to 520-650 DEG C, keeps the temperature 1-2h；Then 100 DEG C or less are cooled to 10-14 DEG C/min to come out of the stove, devitrified glass hair is made
Blanket；
（5）Thickness, corase grinding, fine polishing, cutting, chamfered edge are determined to the devitrified glass blank flat of preparation, obtain devitrified glass.
Preferably, which becomes：Ferrochrome slag 89-91wt%, fluxing agent 5.5-6.5wt%, fining agent
2.8-3.8wt%、KOH 0.8-1.2wt%。
Preferably, by mass percentage, which becomes：Ferrochrome slag 90wt%, fluxing agent 6wt%,
Fining agent 3wt%, KOH 1wt%.
Preferably, the main chemical compositions group of the ferrochrome slag becomes：SiO2：37.5-46.7%,MgO：13.0-
19.5%,CaO：12.1-13.5%,Al2O3:7.3-11.5%、Fe2O3：4.8-5.9%,Cr2O3：2.2-4.8%,Na2O：1.2-
3.5%、TiO2:0.3-0.7%,NiO：0.2-0.6%,MoO3：0.1-0.5%.
Preferably, the cosolvent is fluorite, boron oxide, dolomite and barite, and the weight between them
Than being 15:8:3:1.
Preferably, the fining agent is sodium nitrate, carbon treatment conditions：It is made annealing treatment in 650 DEG C of Muffle furnace
80-100min。
Preferably, the step（4）In, the technical process of crystallization is as follows：In 540 DEG C of stove inside holding 1.5h；So
760 DEG C are warming up to≤5 DEG C/min afterwards, keeps the temperature 3h；Then 835 DEG C are warming up to≤5 DEG C/min, keep the temperature 1.5h；Then with 12
DEG C/min is warming up to 940 DEG C, keep the temperature 0.8h；Then 535 DEG C are cooled to 18 DEG C/min, keep the temperature 1.5h；Then with 12 DEG C/min
It is cooled to 100 DEG C or less to come out of the stove, devitrified glass blank flat is made.
Compared with prior art, the present invention it has the advantages that：
（1）The present invention uses ferrochrome slag, and by adding fluxing agent, fining agent, KOH, prepares with preferable wear-resisting property, resistance to
Corrosive nature and impact-resistant devitrified glass, while also solving the environmental pollution of ferrochrome tailing, security problems.
（2）Not only contain the main chemical compositions prepared needed for devitrified glass in the ferrochrome slag of the present invention, contains adjust simultaneously
Control the Cr of devitrified glass institutional framework2O3、TiO2、NiO、MoO3Etc. micro constitutents, it is brilliant to make the more tiny of crystal development
Body eduction rate is high, and then improves wearability, acid-alkali-corrosive-resisting and the excellent shock resistance of devitrified glass.
（3）Invent addition fluxing agent can the fusion temperature of system reduce, while the crystallization of devitrified glass can be effectively improved
Rate and principal crystalline phase percentage；And the addition of fining agent can eliminate the bubble in glass metal, improve devitrified glass quality；And
KOH can be used as the oxidant and activator of devitrified glass, can not only be oxidized to K at high temperature2O, have the function of it is fluxing, together
When, KOH activity becomes strong under high temperature, the Cr in adsorbable ferrochrome slag, to which Cr to be fixed in devitrified glass, prevents its dissolution dirty
Contaminate environment.
（4）For the present invention by constantly regulating and controlling fusing, molding and crystallization process parameter, it is principal crystalline phase that can obtain as diopside
Devitrified glass and crystal content can arrive 70-76%, and to be the devitrified glass of principal crystalline phase using diopside have excellent mechanical property
Energy, wearability and corrosion resistance, to make devitrified glass obtained that there is preferable wearability, corrosion resistance and impact resistance
Energy.
Specific implementation mode
To make the object, technical solutions and advantages of the present invention clearer, technical scheme of the present invention will be carried out below
Clear, complete description.Obviously, described embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.
Based on the embodiments of the present invention, those of ordinary skill in the art obtained institute without making creative work
There are other embodiments, belongs to the range that the present invention is protected.
Embodiment 1
The devitrified glass of the present embodiment, by mass percentage, the glass raw material group become：Ferrochrome slag 88%, fluxing agent
6.5wt%, fining agent 4.4wt%, KOH 1.1wt%.
Wherein, the cosolvent is fluorite, boron oxide, dolomite and barite, and the weight ratio between them is 15:8:
3:1。
Wherein, the fining agent is sodium nitrate, sodium carbonate or antimony oxide.
The present invention also provides the preparation methods of above-mentioned devitrified glass, include the following steps：
（1）The desired amount of ferrochrome slag, fluxing agent and fining agent are crushed, and ferrochrome slag, fluxing agent and fining agent after sieving are thrown
Enter batch mixer to be sufficiently mixed, obtains devitrified glass basis batch；
（2）Mixed devitrified glass basis batch is preheated into 30min at 650 DEG C, is added in high temperature furnace and is melted,
Fusion temperature is 1300 DEG C, keeps the temperature 40min, and KOH is then added, and is first warming up to 1500 DEG C with the speed of 5 DEG C/min, heat preservation
Then 30min is cooled to 1350 DEG C with the speed of 8 DEG C/min again, keep the temperature 20min, and qualification is formed after, clarification uniform after melt
Glass metal；
（3）Uniform, clear glass metal is poured into preheated mold, after glass metal molding after after be sent into Muffle furnace in anneal
Processing, obtains parent glass plate；
（4）Molding parent glass plate is sent into resistance furnace and carries out crystallization, the technical process of crystallization is as follows：It is protected in 520 DEG C of stoves
Warm 1h；Then 740 DEG C are warming up to≤5 DEG C/min, keep the temperature 2h；Then 820 DEG C are warming up to≤5 DEG C/min, keep the temperature 1h；So
930 DEG C are warming up to 10 DEG C/min afterwards, keeps the temperature 0.5h；Then 520 DEG C are cooled to 15 DEG C/min, keep the temperature 1h；Then with 10
DEG C/min is cooled to 100 DEG C or less and comes out of the stove, devitrified glass blank flat is made；
（5）Thickness, corase grinding, fine polishing, cutting, chamfered edge are determined to the devitrified glass blank flat of preparation, obtain devitrified glass.
Wherein, the step（1）Further include that ferrochrome slag, fluxing agent and the fining agent of crushing are crossed into 50 mesh sieve.
Wherein, the step（3）In, the temperature of mold preheating is 800 DEG C.
Preferably, the step（3）Middle annealing condition：It is made annealing treatment in 650 DEG C of Muffle furnace
80min。
Embodiment 2
The devitrified glass of the present embodiment, by mass percentage, the glass raw material group become：Ferrochrome slag 90wt%, fluxing agent
5.5wt%, fining agent 3.3wt%, KOH 1.2wt%.
Wherein, the cosolvent is fluorite, boron oxide, dolomite and barite, and the weight ratio between them is 15:8:
3:1。
Wherein, the fining agent is sodium nitrate, sodium carbonate or antimony oxide.
The present invention also provides the preparation methods of above-mentioned devitrified glass, include the following steps：
（1）The desired amount of ferrochrome slag, fluxing agent and fining agent are crushed, and ferrochrome slag, fluxing agent and fining agent after sieving are thrown
Enter batch mixer to be sufficiently mixed, obtains devitrified glass basis batch；
（2）Mixed devitrified glass basis batch is preheated into 40min at 650 DEG C, is added in high temperature furnace and is melted,
Fusion temperature is 1400 DEG C, keeps the temperature 60min, and KOH is then added, and is first warming up to 1500 DEG C with the speed of 5 DEG C/min, heat preservation
Then 50min is cooled to 1350 DEG C with the speed of 8 DEG C/min again, keep the temperature 30min, and qualification is formed after, clarification uniform after melt
Glass metal；
（3）Uniform, clear glass metal is poured into preheated mold, after glass metal molding after after be sent into Muffle furnace in anneal
Processing, obtains parent glass plate；
（4）Molding parent glass plate is sent into resistance furnace and carries out crystallization, the technical process of crystallization is as follows：It is protected in 650 DEG C of stoves
Warm 2h；Then 780 DEG C are warming up to≤5 DEG C/min, keep the temperature 4h；Then 850 DEG C are warming up to≤5 DEG C/min, keep the temperature 2h；Then
950 DEG C are warming up to 14 DEG C/min, keeps the temperature 1h；Then 650 DEG C are cooled to 20 DEG C/min, keep the temperature 2h；Then with 14 DEG C/min
It is cooled to 100 DEG C or less to come out of the stove, devitrified glass blank flat is made；
（5）Thickness, corase grinding, fine polishing, cutting, chamfered edge are determined to the devitrified glass blank flat of preparation, obtain devitrified glass.
Wherein, the step（1）Further include that ferrochrome slag, fluxing agent and the fining agent of crushing are crossed into 50 mesh sieve.
Wherein, the step（3）In, the temperature of mold preheating is 800 DEG C.
Wherein, the step（3）Middle annealing condition：100min is made annealing treatment in 650 DEG C of Muffle furnace.
Embodiment 3
The devitrified glass of the present embodiment, by mass percentage, the glass raw material group become：Ferrochrome slag 90wt%, fluxing agent
6wt%, fining agent 3wt%, KOH 1wt%.
Wherein, the cosolvent is fluorite, boron oxide, dolomite and barite, and the weight ratio between them is 15:8:
3:1。
Wherein, the fining agent is sodium nitrate, sodium carbonate or antimony oxide.
The present invention also provides the preparation methods of above-mentioned devitrified glass, include the following steps：
（1）The desired amount of ferrochrome slag, fluxing agent and fining agent are crushed, and ferrochrome slag, fluxing agent and fining agent after sieving are thrown
Enter batch mixer to be sufficiently mixed, obtains devitrified glass basis batch；
（2）Mixed devitrified glass basis batch is preheated into 35min at 650 DEG C, is added in high temperature furnace and is melted,
Fusion temperature is 1350 DEG C, keeps the temperature 50min, and KOH is then added, and is first warming up to 1500 DEG C with the speed of 5 DEG C/min, heat preservation
Then 40min is cooled to 1350 DEG C with the speed of 8 DEG C/min again, keep the temperature 25min, and qualification is formed after, clarification uniform after melt
Glass metal；
（3）Uniform, clear glass metal is poured into preheated mold, after glass metal molding after after be sent into Muffle furnace in anneal
Processing, obtains parent glass plate；
（4）Molding parent glass plate is sent into resistance furnace and carries out crystallization, the technical process of crystallization is as follows：It is protected in 540 DEG C of stoves
Warm 1.5h；Then 760 DEG C are warming up to≤5 DEG C/min, keep the temperature 3h；Then 835 DEG C are warming up to≤5 DEG C/min, heat preservation
1.5h；Then 940 DEG C are warming up to 12 DEG C/min, keep the temperature 0.8h；Then 535 DEG C are cooled to 18 DEG C/min, keep the temperature 1.5h；
Then 100 DEG C or less are cooled to 12 DEG C/min to come out of the stove, devitrified glass blank flat is made；
（5）Thickness, corase grinding, fine polishing, cutting, chamfered edge are determined to the devitrified glass blank flat of preparation, obtain devitrified glass.
Wherein, the step（1）Further include that ferrochrome slag, fluxing agent and the fining agent of crushing are crossed into 50 mesh sieve.
Wherein, the step（3）In, the temperature of mold preheating is 800 DEG C.
Wherein, the step（3）Middle annealing condition：90min is made annealing treatment in 650 DEG C of Muffle furnace.
Embodiment 4
The devitrified glass of the present embodiment of the present embodiment, by mass percentage, the glass raw material group become：Ferrochrome slag 89wt%,
Fluxing agent 7wt%, fining agent 3.6wt%, KOH 0.8wt%.
Wherein, the cosolvent is fluorite, boron oxide, dolomite and barite, and the weight ratio between them is 15:8:
3:1。
Wherein, the fining agent is sodium nitrate, sodium carbonate or antimony oxide.
The present invention also provides the preparation methods of above-mentioned devitrified glass, include the following steps：
（1）The desired amount of ferrochrome slag, fluxing agent and fining agent are crushed, and ferrochrome slag, fluxing agent and fining agent after sieving are thrown
Enter batch mixer to be sufficiently mixed, obtains devitrified glass basis batch；
（2）Mixed devitrified glass basis batch is preheated into 32min at 650 DEG C, is added in high temperature furnace and is melted,
Fusion temperature is 1330 DEG C, keeps the temperature 45min, and KOH is then added, and is first warming up to 1500 DEG C with the speed of 5 DEG C/min, heat preservation
Then 35min is cooled to 1350 DEG C with the speed of 8 DEG C/min again, keep the temperature 22min, and qualification is formed after, clarification uniform after melt
Glass metal；
（3）Uniform, clear glass metal is poured into preheated mold, after glass metal molding after after be sent into Muffle furnace in anneal
Processing, obtains parent glass plate；
（4）Molding parent glass plate is sent into resistance furnace and carries out crystallization, the technical process of crystallization is as follows：It is protected in 560 DEG C of stoves
Warm 1.3h；Then 750 DEG C are warming up to≤5 DEG C/min, keep the temperature 2.5h；Then 830 DEG C are warming up to≤5 DEG C/min, heat preservation
1.2h；Then 940 DEG C are warming up to 11 DEG C/min, keep the temperature 0.6h；Then 530 DEG C are cooled to 16 DEG C/min, keep the temperature 1.3h；
Then 100 DEG C or less are cooled to 12 DEG C/min to come out of the stove, devitrified glass blank flat is made；
（5）Thickness, corase grinding, fine polishing, cutting, chamfered edge are determined to the devitrified glass blank flat of preparation, obtain devitrified glass.
Wherein, the step（1）Further include that ferrochrome slag, fluxing agent and the fining agent of crushing are crossed into 50 mesh sieve.
Wherein, the step（3）In, the temperature of mold preheating is 800 DEG C.
Wherein, the step（3）Middle annealing condition：85min is made annealing treatment in 650 DEG C of Muffle furnace.
Embodiment 5
The devitrified glass of the present embodiment of the present embodiment, by mass percentage, the glass raw material group become：Ferrochrome slag 91wt%,
Fluxing agent 6wt%, fining agent 2.5wt%, KOH 0.5wt%.
Wherein, the cosolvent is fluorite, boron oxide, dolomite and barite, and the weight ratio between them is 15:8:
3:1。
Wherein, the fining agent is sodium nitrate, sodium carbonate or antimony oxide.
The present invention also provides the preparation methods of above-mentioned devitrified glass, include the following steps：
（1）The desired amount of ferrochrome slag, fluxing agent and fining agent are crushed, and ferrochrome slag, fluxing agent and fining agent after sieving are thrown
Enter batch mixer to be sufficiently mixed, obtains devitrified glass basis batch；
（2）Mixed devitrified glass basis batch is preheated into 38min at 650 DEG C, is added in high temperature furnace and is melted,
Fusion temperature is 1380 DEG C, keeps the temperature 55min, and KOH is then added, and is first warming up to 1500 DEG C with the speed of 5 DEG C/min, heat preservation
Then 45min is cooled to 1350 DEG C with the speed of 8 DEG C/min again, keep the temperature 28min, and qualification is formed after, clarification uniform after melt
Glass metal；
（3）Uniform, clear glass metal is poured into preheated mold, after glass metal molding after after be sent into Muffle furnace in anneal
Processing, obtains parent glass plate；
（4）Molding parent glass plate is sent into resistance furnace and carries out crystallization, the technical process of crystallization is as follows：It is protected in 620 DEG C of stoves
Warm 1.8h；Then 770 DEG C are warming up to≤5 DEG C/min, keep the temperature 3.5h；Then 840 DEG C are warming up to≤5 DEG C/min, heat preservation
1.8h；Then 945 DEG C are warming up to 13 DEG C/min, keep the temperature 0.8h；Then 620 DEG C are cooled to 18 DEG C/min, keep the temperature 1.8h；
Then 100 DEG C or less are cooled to 13 DEG C/min to come out of the stove, devitrified glass blank flat is made；
（5）Thickness, corase grinding, fine polishing, cutting, chamfered edge are determined to the devitrified glass blank flat of preparation, obtain devitrified glass.
Wherein, the step（1）Further include that ferrochrome slag, fluxing agent and the fining agent of crushing are crossed into 50 mesh sieve.
Wherein, the step（3）In, the temperature of mold preheating is 800 DEG C.
Wherein, the step（3）Middle annealing condition：95min is made annealing treatment in 650 DEG C of Muffle furnace.
Embodiment 6
The devitrified glass of the present embodiment, by mass percentage, the glass raw material group become：Ferrochrome slag 88.5wt%, fluxing agent
5.6wt%, fining agent 4.4wt%, KOH 1.5wt%.
Wherein, the cosolvent is fluorite, boron oxide, dolomite and barite, and the weight ratio between them is 15:8:
3:1。
Wherein, the fining agent is sodium nitrate, sodium carbonate or antimony oxide.
The present invention also provides the preparation methods of above-mentioned devitrified glass, include the following steps：
（1）The desired amount of ferrochrome slag, fluxing agent and fining agent are crushed, and ferrochrome slag, fluxing agent and fining agent after sieving are thrown
Enter batch mixer to be sufficiently mixed, obtains devitrified glass basis batch；
（2）Mixed devitrified glass basis batch is preheated into 35min at 650 DEG C, is added in high temperature furnace and is melted,
Fusion temperature is 1300 DEG C, keeps the temperature 55min, and KOH is then added, and is first warming up to 1500 DEG C with the speed of 5 DEG C/min, heat preservation
Then 45min is cooled to 1350 DEG C with the speed of 8 DEG C/min again, keep the temperature 25min, and qualification is formed after, clarification uniform after melt
Glass metal；
（3）Uniform, clear glass metal is poured into preheated mold, after glass metal molding after after be sent into Muffle furnace in anneal
Processing, obtains parent glass plate；
（4）Molding parent glass plate is sent into resistance furnace and carries out crystallization, the technical process of crystallization is as follows：It is protected in 560 DEG C of stoves
Warm 1.5h；Then 760 DEG C are warming up to≤5 DEG C/min, keep the temperature 3.5h；Then 840 DEG C are warming up to≤5 DEG C/min, heat preservation
1.5h；Then 940 DEG C are warming up to 12 DEG C/min, keep the temperature 0.8h；Then 600 DEG C are cooled to 16 DEG C/min, keep the temperature 1.2h；
Then 100 DEG C or less are cooled to 12 DEG C/min to come out of the stove, devitrified glass blank flat is made；
（5）Thickness, corase grinding, fine polishing, cutting, chamfered edge are determined to the devitrified glass blank flat of preparation, obtain devitrified glass.
Wherein, the step（1）Further include that ferrochrome slag, fluxing agent and the fining agent of crushing are crossed into 50 mesh sieve.
Wherein, the step（3）In, the temperature of mold preheating is 800 DEG C.
Wherein, the step（3）Middle annealing condition：85min is made annealing treatment in 650 DEG C of Muffle furnace.
Embodiment 7
The devitrified glass of the present embodiment, by mass percentage, the glass raw material group become：Ferrochrome slag 90.5wt%, fluxing agent
5.5wt%, fining agent 2.7wt%, KOH 1.3wt%.
Wherein, the cosolvent is fluorite, boron oxide, dolomite and barite, and the weight ratio between them is 15:8:
3:1。
Wherein, the fining agent is sodium nitrate, sodium carbonate or antimony oxide.
The present invention also provides the preparation methods of above-mentioned devitrified glass, include the following steps：
（1）The desired amount of ferrochrome slag, fluxing agent and fining agent are crushed, and ferrochrome slag, fluxing agent and fining agent after sieving are thrown
Enter batch mixer to be sufficiently mixed, obtains devitrified glass basis batch；
（2）Mixed devitrified glass basis batch is preheated into 38min at 650 DEG C, is added in high temperature furnace and is melted,
Fusion temperature is 1330 DEG C, keeps the temperature 45min, and KOH is then added, and is first warming up to 1500 DEG C with the speed of 5 DEG C/min, heat preservation
Then 35min is cooled to 1350 DEG C with the speed of 8 DEG C/min again, keep the temperature 25min, and qualification is formed after, clarification uniform after melt
Glass metal；
（3）Uniform, clear glass metal is poured into preheated mold, after glass metal molding after after be sent into Muffle furnace in anneal
Processing, obtains parent glass plate；
（4）Molding parent glass plate is sent into resistance furnace and carries out crystallization, the technical process of crystallization is as follows：It is protected in 550 DEG C of stoves
Warm 1.8h；Then 750 DEG C are warming up to≤5 DEG C/min, keep the temperature 2.5h；Then 830 DEG C are warming up to≤5 DEG C/min, heat preservation
1.2h；Then 935 DEG C are warming up to 12 DEG C/min, keep the temperature 0.6h；Then 580 DEG C are cooled to 18 DEG C/min, keep the temperature 1.8h；
Then 100 DEG C or less are cooled to 12 DEG C/min to come out of the stove, devitrified glass blank flat is made；
（5）Thickness, corase grinding, fine polishing, cutting, chamfered edge are determined to the devitrified glass blank flat of preparation, obtain devitrified glass.
Wherein, the step（1）Further include that ferrochrome slag, fluxing agent and the fining agent of crushing are crossed into 50 mesh sieve.
Wherein, the step（3）In, the temperature of mold preheating is 800 DEG C.
Wherein, the step（3）Middle annealing condition：95min is made annealing treatment in 650 DEG C of Muffle furnace.
Embodiment 8
The devitrified glass of the present embodiment, by mass percentage, the glass raw material group become：Ferrochrome slag 91.5wt%, fluxing agent
5.5wt%, fining agent 2.2wt%, KOH 0.8wt%.
Wherein, the cosolvent is fluorite, boron oxide, dolomite and barite, and the weight ratio between them is 15:8:
3:1。
Wherein, the fining agent is sodium nitrate, sodium carbonate or antimony oxide.
The present invention also provides the preparation methods of above-mentioned devitrified glass, include the following steps：
（1）The desired amount of ferrochrome slag, fluxing agent and fining agent are crushed, and ferrochrome slag, fluxing agent and fining agent after sieving are thrown
Enter batch mixer to be sufficiently mixed, obtains devitrified glass basis batch；
（2）Mixed devitrified glass basis batch is preheated into 33min at 650 DEG C, is added in high temperature furnace and is melted,
Fusion temperature is 1350 DEG C, keeps the temperature 55min, and KOH is then added, and is first warming up to 1500 DEG C with the speed of 5 DEG C/min, heat preservation
Then 35min is cooled to 1350 DEG C with the speed of 8 DEG C/min again, keep the temperature 22min, and qualification is formed after, clarification uniform after melt
Glass metal；
（3）Uniform, clear glass metal is poured into preheated mold, after glass metal molding after after be sent into Muffle furnace in anneal
Processing, obtains parent glass plate；
（4）Molding parent glass plate is sent into resistance furnace and carries out crystallization, the technical process of crystallization is as follows：It is protected in 550 DEG C of stoves
Warm 1.8h；Then 770 DEG C are warming up to≤5 DEG C/min, keep the temperature 3.5h；Then 845 DEG C are warming up to≤5 DEG C/min, heat preservation
1.8h；Then 945 DEG C are warming up to 12 DEG C/min, keep the temperature 0.8h；Then 580 DEG C are cooled to 18 DEG C/min, keep the temperature 1.5h；
Then 100 DEG C or less are cooled to 12 DEG C/min to come out of the stove, devitrified glass blank flat is made；
（5）Thickness, corase grinding, fine polishing, cutting, chamfered edge are determined to the devitrified glass blank flat of preparation, obtain devitrified glass.
Wherein, the step（1）Further include that ferrochrome slag, fluxing agent and the fining agent of crushing are crossed into 50 mesh sieve.
Wherein, the step（3）In, the temperature of mold preheating is 800 DEG C.
Wherein, the step（3）Middle annealing condition：95min is made annealing treatment in 650 DEG C of Muffle furnace.
Experimental example
To devitrified glass made from above-described embodiment 1-8 according to national standard《GB/T9966-2001》It makes a service test, specifically
The results are shown in Table 1.
Table 1
| Test event | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Embodiment 6 | Embodiment 7 | Embodiment 8 |
| Draw strength（MPa） | 67.87 | 69.86 | 75.34 | 71.15 | 65.87 | 64.59 | 73.23 | 70.28 |
| Acid resistance（%） | 0.056 | 0.044 | 0.038 | 0.056 | 0.054 | 0.062 | 0.048 | 0.053 |
| Alkali resistance（%） | 0.001 | 0 | 0 | 0.002 | 0 | 0.003 | 0.002 | 0 |
| Wearability（g/cm2) | 0.039 | 0.035 | 0.032 | 0.037 | 0.033 | 0.034 | 0.036 | 0.033 |
As shown in Table 1, the devitrified glass that prepared by the present invention has preferable wearability, acid-alkali-corrosive-resisting and impact resistance
Energy.
To sum up, creativeness of the invention is mainly reflected in the following：
（1）The present invention uses ferrochrome slag, and by adding fluxing agent, fining agent, KOH, prepares with preferable wear-resisting property, resistance to
Corrosive nature and impact-resistant devitrified glass, while also solving the environmental pollution of ferrochrome tailing, security problems.
（2）Not only contain the main chemical compositions prepared needed for devitrified glass in the ferrochrome slag of the present invention, contains adjust simultaneously
Control the Cr of devitrified glass institutional framework2O3、TiO2、NiO、MoO3Etc. micro constitutents, it is brilliant to make the more tiny of crystal development
Body eduction rate is high, and then improves wearability, acid-alkali-corrosive-resisting and the excellent shock resistance of devitrified glass.
（3）Invent addition fluxing agent can the fusion temperature of system reduce, while the crystallization of devitrified glass can be effectively improved
Rate and principal crystalline phase percentage；And the addition of fining agent can eliminate the bubble in glass metal, improve devitrified glass quality；And
KOH can be used as the oxidant and activator of devitrified glass, can not only be oxidized to K at high temperature2O, have the function of it is fluxing, together
When, KOH activity becomes strong under high temperature, the Cr in adsorbable ferrochrome slag, to which Cr to be fixed in devitrified glass, prevents its dissolution dirty
Contaminate environment.
（4）For the present invention by constantly regulating and controlling fusing, molding and crystallization process parameter, it is principal crystalline phase that can obtain as diopside
Devitrified glass and crystal content can arrive 70-76%, and to be the devitrified glass of principal crystalline phase using diopside have excellent mechanical property
Energy, wearability and corrosion resistance, to make devitrified glass obtained that there is preferable wearability, corrosion resistance and impact resistance
Energy.
Specific embodiments of the present invention are described above.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims, this not shadow
Ring the substantive content of the present invention.
Claims (10)
1. a kind of devitrified glass, which is characterized in that by mass percentage, which becomes：Ferrochrome slag 88-92wt%,
Fluxing agent 5-7wt%, fining agent 2.2-4.4wt%, KOH 0.5-1.5wt%, and prepared using following methods：
（1）The desired amount of ferrochrome slag, fluxing agent and fining agent are crushed, and ferrochrome slag, fluxing agent and fining agent after sieving are thrown
Enter batch mixer to be sufficiently mixed, obtains devitrified glass basis batch；
（2）Mixed devitrified glass basis batch is preheated into 30-40min at 650 DEG C, is added in high temperature furnace and is melted
Change, fusion temperature is 1300-1400 DEG C, keeps the temperature 40-60min, and KOH is then added, is first warming up to 1500 with the speed of 5 DEG C/min
DEG C, 30-50min is kept the temperature, is then cooled to 1350 DEG C again with the speed of 8 DEG C/min, 20-30min is kept the temperature, waits for that melt is uniform, clear
Qualified glass metal is formed after clear；
（3）Uniform, clear glass metal is poured into preheated mold, after glass metal molding after after be sent into Muffle furnace in anneal
Processing, obtains parent glass plate；
（4）Molding parent glass plate is sent into resistance furnace and carries out crystallization, the technical process of crystallization is as follows：In 520-650 DEG C of stove
Inside holding 1-2h；Then it is warming up to 740-780 DEG C with≤5 DEG C/min, keeps the temperature 2-4h；Then 820- is warming up to≤5 DEG C/min
850 DEG C, keep the temperature 1-2h；Then it is warming up to 930-950 DEG C with 10-14 DEG C/min, keeps the temperature 0.5-1h；Then with 15-20 DEG C/min
It is cooled to 520-650 DEG C, keeps the temperature 1-2h；Then 100 DEG C or less are cooled to 10-14 DEG C/min to come out of the stove, devitrified glass hair is made
Blanket；
（5）Thickness, corase grinding, fine polishing, cutting, chamfered edge are determined to the devitrified glass blank flat of preparation, obtain devitrified glass.
2. devitrified glass according to claim 1, which is characterized in that by mass percentage, which becomes：
Ferrochrome slag 89-91wt%, fluxing agent 5.5-6.5wt%, fining agent 2.8-3.8wt%, KOH 0.8-1.2wt%.
3. devitrified glass according to claim 1, which is characterized in that by mass percentage, which becomes：
Ferrochrome slag 90wt%, fluxing agent 6wt%, fining agent 3wt%, KOH 1wt%.
4. devitrified glass according to claim 1, which is characterized in that the main chemical compositions group of the ferrochrome slag becomes：
SiO2：37.5-46.7%,MgO：13.0-19.5%,CaO：12.1-13.5%,Al2O3:7.3-11.5%、Fe2O3：4.8-5.9%,
Cr2O3：2.2-4.8%,Na2O：1.2-3.5%,TiO2:0.3-0.7%,NiO：0.2-0.6%,MoO3：0.1-0.5%.
5. devitrified glass according to claim 1, which is characterized in that the cosolvent be fluorite, boron oxide, dolomite and
Barite, and the weight ratio between them is 15:8:3:1.
6. devitrified glass according to claim 1, which is characterized in that the fining agent is sodium nitrate, sodium carbonate or oxidation
Antimony.
7. devitrified glass according to claim 1, which is characterized in that the step（1）Further include the ferrochrome slag that will be crushed,
Fluxing agent and fining agent cross 50 mesh sieve.
8. the devitrified glass according to claim, which is characterized in that the step（3）In, the temperature of mold preheating is 800
℃。
9. devitrified glass according to claim 1, which is characterized in that the step（3）Middle annealing condition：In 650
DEG C Muffle furnace in make annealing treatment 80-100min.
10. devitrified glass according to claim 1, which is characterized in that the step（4）In, the technical process of crystallization is such as
Under：In 540 DEG C of stove inside holding 1.5h；Then 760 DEG C are warming up to≤5 DEG C/min, keep the temperature 3h；Then it is heated up with≤5 DEG C/min
To 835 DEG C, 1.5h is kept the temperature；Then 940 DEG C are warming up to 12 DEG C/min, keep the temperature 0.8h；Then 535 are cooled to 18 DEG C/min
DEG C, keep the temperature 1.5h；Then 100 DEG C or less are cooled to 12 DEG C/min to come out of the stove, devitrified glass blank flat is made.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109437535A (en) * | 2018-11-27 | 2019-03-08 | 成都光明光电股份有限公司 | Devitrified glass crystallization system and method |
| CN113998895A (en) * | 2021-12-13 | 2022-02-01 | 西安邮电大学 | Controllable crystallization method of lithium disilicate glass ceramics |
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| CN103539357A (en) * | 2013-08-27 | 2014-01-29 | 中国科学院过程工程研究所 | Silicon-slag microcrystalline glass and preparation method thereof |
| CN105923981A (en) * | 2016-05-04 | 2016-09-07 | 昆明理工大学 | Method for preparing common glass by means of molten-state yellow phosphorus slag |
| CN105924013A (en) * | 2016-04-25 | 2016-09-07 | 四川名微晶科技股份有限公司 | Glass ceramic produced by all electric fused rolling process technique using ferrochrome slags as raw materials and production method therefor |
| CN106698953A (en) * | 2016-12-21 | 2017-05-24 | 江苏省冶金设计院有限公司 | Cordierite microcrystalline glass prepared by using high-carbon ferrochrome slag and preparation method of cordierite microcrystalline glass |
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| CN103539357A (en) * | 2013-08-27 | 2014-01-29 | 中国科学院过程工程研究所 | Silicon-slag microcrystalline glass and preparation method thereof |
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| CN109437535A (en) * | 2018-11-27 | 2019-03-08 | 成都光明光电股份有限公司 | Devitrified glass crystallization system and method |
| CN109437535B (en) * | 2018-11-27 | 2021-11-09 | 成都光明光电股份有限公司 | Crystallizing device and method for microcrystalline glass |
| CN113998895A (en) * | 2021-12-13 | 2022-02-01 | 西安邮电大学 | Controllable crystallization method of lithium disilicate glass ceramics |
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