CN112919808A - Iron tailing microcrystalline glass sintering process - Google Patents
Iron tailing microcrystalline glass sintering process Download PDFInfo
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- CN112919808A CN112919808A CN202110254345.XA CN202110254345A CN112919808A CN 112919808 A CN112919808 A CN 112919808A CN 202110254345 A CN202110254345 A CN 202110254345A CN 112919808 A CN112919808 A CN 112919808A
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- microcrystalline glass
- glass
- iron tailings
- sintering process
- iron
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 194
- 239000011521 glass Substances 0.000 title claims abstract description 124
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 97
- 238000000034 method Methods 0.000 title claims abstract description 42
- 238000005245 sintering Methods 0.000 title claims abstract description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 46
- 238000010791 quenching Methods 0.000 claims abstract description 36
- 230000000171 quenching effect Effects 0.000 claims abstract description 36
- 238000012216 screening Methods 0.000 claims abstract description 23
- 238000001035 drying Methods 0.000 claims abstract description 22
- 239000000463 material Substances 0.000 claims abstract description 22
- 239000011812 mixed powder Substances 0.000 claims abstract description 21
- 238000007689 inspection Methods 0.000 claims abstract description 19
- 238000002844 melting Methods 0.000 claims abstract description 17
- 230000008018 melting Effects 0.000 claims abstract description 17
- 238000005520 cutting process Methods 0.000 claims abstract description 16
- 239000000156 glass melt Substances 0.000 claims abstract description 13
- 239000000203 mixture Substances 0.000 claims abstract description 13
- 239000004927 clay Substances 0.000 claims abstract description 11
- 238000001816 cooling Methods 0.000 claims abstract description 11
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- 239000012535 impurity Substances 0.000 claims abstract description 11
- 239000002689 soil Substances 0.000 claims abstract description 11
- 238000005498 polishing Methods 0.000 claims abstract description 10
- 238000002156 mixing Methods 0.000 claims abstract description 9
- 238000004140 cleaning Methods 0.000 claims abstract description 7
- 238000000227 grinding Methods 0.000 claims abstract description 6
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 30
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 30
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 20
- 239000002131 composite material Substances 0.000 claims description 20
- 239000002667 nucleating agent Substances 0.000 claims description 19
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 15
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 15
- 238000005406 washing Methods 0.000 claims description 13
- 239000003795 chemical substances by application Substances 0.000 claims description 12
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 claims description 10
- 229910000423 chromium oxide Inorganic materials 0.000 claims description 10
- CHWRSCGUEQEHOH-UHFFFAOYSA-N potassium oxide Chemical compound [O-2].[K+].[K+] CHWRSCGUEQEHOH-UHFFFAOYSA-N 0.000 claims description 10
- 229910001950 potassium oxide Inorganic materials 0.000 claims description 10
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 claims description 10
- 229910001948 sodium oxide Inorganic materials 0.000 claims description 10
- 239000004408 titanium dioxide Substances 0.000 claims description 10
- 238000002425 crystallisation Methods 0.000 claims description 6
- 230000008025 crystallization Effects 0.000 claims description 6
- 238000007517 polishing process Methods 0.000 claims description 6
- 239000006184 cosolvent Substances 0.000 claims description 5
- 239000002241 glass-ceramic Substances 0.000 claims description 5
- 239000004615 ingredient Substances 0.000 abstract description 5
- 238000002360 preparation method Methods 0.000 abstract description 4
- 239000002994 raw material Substances 0.000 abstract description 3
- 238000004806 packaging method and process Methods 0.000 abstract 1
- 230000002194 synthesizing effect Effects 0.000 abstract 1
- 239000013081 microcrystal Substances 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000004907 flux Effects 0.000 description 3
- 238000003786 synthesis reaction Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 239000003484 crystal nucleating agent Substances 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000005447 environmental material Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B1/00—Preparing the batches
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B19/00—Other methods of shaping glass
- C03B19/06—Other methods of shaping glass by sintering, e.g. by cold isostatic pressing of powders and subsequent sintering, by hot pressing of powders, by sintering slurries or dispersions not undergoing a liquid phase reaction
-
- 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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Ceramic Engineering (AREA)
- Dispersion Chemistry (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses an iron tailing microcrystalline glass sintering process, which belongs to the technical field of microcrystalline glass preparation and comprises the following steps: s1: cleaning the iron tailings; s2: drying the iron tailings; s3: screening iron tailings; s4: preparing raw materials; s5: mixing the raw materials to obtain a mixture; s6: grinding to obtain mixed powder; s7: screening; s8: melting to obtain a glass melt; s9: water quenching to obtain glass material; s10: drying the glass material; s11: sintering and crystallizing heat treatment to obtain a microcrystalline glass blank; s12: naturally cooling the microcrystalline glass blank in air; s13: quality inspection; s14: polishing and cutting to obtain a microcrystalline glass finished product; s15: packaging; the invention can remove the soil and impurities mixed in the iron tailings or the clay attached to the surface of the iron tailings, avoid the problem that the soil or impurities mixed in the iron tailings and the clay attached to the surface of the iron tailings enter the ingredients along with the iron tailings during the ingredients mixing, cause impure ingredients in the ingredients synthesizing process, and improve the quality of finished products after the microcrystalline glass is sintered.
Description
Technical Field
The invention belongs to the technical field of microcrystalline glass preparation, and particularly relates to an iron tailing microcrystalline glass sintering process.
Background
The microcrystal glass is made of basic glass with crystallization behavior controlled and is a material with uniformly distributed microcrystal and glass phase, and is different from common glass, and the atomic arrangement in the common glass is irregular and easy to break, and the microcrystal glass is made of crystal whose atomic arrangement is regular, so that in the structural composition, the toughness of the microcrystal glass is superior to that of the common glass, and the application range of the microcrystal glass is larger than that of the common glass.
The microcrystalline glass prepared from the iron tailing waste residues can be used for developing high-grade architectural decoration or industrial wear-resistant and corrosion-resistant materials with high performance and low cost, so that the iron tailing resources can be regenerated, the national environmental protection concept is facilitated, and the technical content and the additional value of the materials are improved, so that the microcrystalline glass prepared from the iron tailing waste residues becomes a green environmental material in twenty-first century and can be widely applied.
The sintering process is needed in the process of preparing the iron tailings into the microcrystalline glass, and although the existing iron tailing microcrystalline glass sintering process is gradually improved, part of the defects still need to be improved.
The prior art has the following problems: the iron tailings cannot be pretreated before the iron tailings are mixed, and soil or impurities mixed in the iron tailings and clay attached to the surface of the iron tailings enter the mixture along with the iron tailings during the mixing, so that the components are impure in the mixing synthesis process, and the finished product quality of the sintered microcrystalline glass is influenced.
Disclosure of Invention
To solve the problems set forth in the background art described above. The invention provides an iron tailing microcrystalline glass sintering process which has the characteristics that iron tailings are pretreated before batching, so that the problem that the ingredients are impure in the batching synthesis process due to the fact that soil or impurities mixed in the iron tailings and clay attached to the surface of the iron tailings enter the batching along with the iron tailings during batching is avoided, and the quality of finished products after sintering the microcrystalline glass is improved.
In order to achieve the purpose, the invention provides the following technical scheme: the iron tailing microcrystalline glass sintering process comprises the following steps:
s1: pouring the iron tailings into an ore washing machine for cleaning, and removing soil mixed in the iron tailings and clay attached to the surface of the iron tailings;
s2: pouring the cleaned iron tailings into a dryer for drying, and removing water stains on the surface of the iron tailings;
s3: pouring the dried iron tailings into a screening machine for screening to remove impurities in the iron tailings;
s4: preparing pretreated iron tailings, calcium carbonate, alumina, zirconia, a composite nucleating agent and a fluxing agent;
s5: pouring the iron tailings, calcium carbonate, alumina, zirconia, the composite nucleating agent and the fluxing agent into a mixer according to a certain proportion for mixing to prepare a mixture;
s6: pouring the mixture into a pulverizer to pulverize to obtain mixed powder;
s7: pouring the prepared mixed powder into a square-hole sieve with the diameter of 0.09mm for screening, and extracting and grinding the qualified mixed powder;
s8: transferring the extracted mixed powder into a glass melting furnace, heating the glass melting furnace at the speed of 10-11 ℃/min until the temperature rises to 1300 ℃ and 1500 ℃, stopping melting for 60-75 min, and cooling at the speed of 8-10 ℃/min to prepare a glass melt;
s9: quickly putting the prepared glass melt into a water quenching tank for water quenching treatment to prepare glass material;
s10: putting the prepared glass material into a dryer for drying;
s11: transferring the dried glass material into a refractory mold, transferring the refractory mold into a tunnel kiln, and performing sintering and crystallization heat treatment to obtain a microcrystalline glass blank;
s12: naturally cooling the prepared microcrystalline glass blank in air;
s13: performing quality inspection on the air-cooled and cooled microcrystalline glass blank, and removing the sintered unqualified microcrystalline glass blank;
s14: polishing and cutting the microcrystalline glass blank after the quality inspection to obtain a finished microcrystalline glass product;
s15: performing quality inspection on the prepared microcrystalline glass finished product, and removing unqualified microcrystalline glass finished products;
s16: and (4) performing different packages on the prepared microcrystalline glass finished product according to factors such as the transportation distance to an application place, the transportation mode, the transportation road section and the like.
Further, in the present invention, in step S1, the washing water pressure of the ore washer is 147-.
Further, in the present invention, in the step S2, the drying temperature of the dryer is 120-150 ℃, and the drying time of the dryer is 40-60 minutes.
Further, in the present invention, in step S3, the screening machine is provided with an upper screen and a lower screen, the mesh number of the upper screen is 110 meshes, and the mesh number of the lower screen is 90 meshes.
Further, in the present invention, in step S4, the composite nucleating agent includes chromium oxide and titanium dioxide, and the addition ratio of the chromium oxide to the titanium dioxide is 1: 3.
in the present invention, in step S4, the cosolvent includes potassium oxide and sodium oxide, and the addition ratio of potassium oxide to sodium oxide is 3: 5.
further, in the present invention, in step S5, the adding ratio of the iron tailings, calcium carbonate, alumina, zirconia, composite crystal nucleating agent and fluxing agent is: 78: 12: 2.5: 3.5: 2: 2.
further, in the present invention, in step S9, a steam discharge system is installed above the water quenching tank, the primary water quenching of the frit is completed, and the steam discharge system of the water quenching tank is opened to discharge steam generated during the water quenching process.
Further, in the present invention, in step S14, when the glass ceramics is polished and cut, the scrap collecting device collects the scraps generated in the polishing process and the scraps generated in the cutting process.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention carries out the pretreatment work of cleaning, drying and screening on the iron tailings before the batching, can remove the soil and impurities mixed in the iron tailings or the clay attached to the surface of the iron tailings, avoids the problem that the soil or impurities mixed in the iron tailings and the clay attached to the surface of the iron tailings enter the batching along with the iron tailings during the batching, which causes impure components in the batching synthesis process, and improves the quality of finished products after the microcrystalline glass is sintered.
2. The steam discharge system is arranged above the water quenching tank, and the steam discharge system of the water quenching tank can be opened after the glass material is subjected to one-time water quenching, so that the purpose of discharging steam generated in the water quenching process is achieved, the steam generated in the water quenching process can be effectively prevented from entering a glass melting furnace to influence the preparation of glass melt, and the preparation effect of the glass melt can be improved.
3. The method can perform quality inspection on the microcrystalline glass blank before polishing and cutting the microcrystalline glass blank, remove the unqualified sintered microcrystalline glass blank, reduce the workload of polishing and cutting equipment, perform quality inspection after polishing and cutting the microcrystalline glass blank, remove the unqualified microcrystalline glass finished product, perform quality inspection twice, prevent the microcrystalline glass finished product with poor quality from leaving the factory and circulating on the market, improve the yield of leaving the microcrystalline glass factory, and improve the popularity of manufacturers.
4. During polishing and cutting, the scrap collecting device collects and cleans scraps generated in the polishing process and scraps generated in the cutting process, and the scraps are used as raw materials for sintering a new round of microcrystalline glass, so that the utilization rate of the scraps and the scraps can be improved, and the problem of material waste is avoided.
Drawings
FIG. 1 is a flow chart of the iron tailing microcrystalline glass sintering process of the invention;
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1, the present invention provides the following technical solutions: the iron tailing microcrystalline glass sintering process comprises the following steps:
s1: pouring the iron tailings into an ore washing machine for cleaning, and removing soil mixed in the iron tailings and clay attached to the surface of the iron tailings;
s2: pouring the cleaned iron tailings into a dryer for drying, and removing water stains on the surface of the iron tailings;
s3: pouring the dried iron tailings into a screening machine for screening to remove impurities in the iron tailings;
s4: preparing pretreated iron tailings, calcium carbonate, alumina, zirconia, a composite nucleating agent and a fluxing agent;
s5: pouring the iron tailings, calcium carbonate, alumina, zirconia, the composite nucleating agent and the fluxing agent into a mixer according to a certain proportion for mixing to prepare a mixture;
s6: pouring the mixture into a pulverizer to pulverize to obtain mixed powder;
s7: pouring the prepared mixed powder into a square-hole sieve with the diameter of 0.09mm for screening, and extracting and grinding the qualified mixed powder;
s8: transferring the extracted mixed powder into a glass melting furnace, heating the glass melting furnace at the speed of 10 ℃/min until the temperature is increased to 1300 ℃, stopping melting for 60min, and cooling at the speed of 8 ℃/min to prepare a glass melt;
s9: quickly putting the prepared glass melt into a water quenching tank for water quenching treatment to prepare glass material;
s10: putting the prepared glass material into a dryer for drying;
s11: transferring the dried glass material into a refractory mold, transferring the refractory mold into a tunnel kiln, and performing sintering and crystallization heat treatment to obtain a microcrystalline glass blank;
s12: naturally cooling the prepared microcrystalline glass blank in air;
s13: performing quality inspection on the air-cooled and cooled microcrystalline glass blank, and removing the sintered unqualified microcrystalline glass blank;
s14: polishing and cutting the microcrystalline glass blank after the quality inspection to obtain a finished microcrystalline glass product;
s15: performing quality inspection on the prepared microcrystalline glass finished product, and removing unqualified microcrystalline glass finished products;
s16: and (4) performing different packages on the prepared microcrystalline glass finished product according to factors such as the transportation distance to an application place, the transportation mode, the transportation road section and the like.
Specifically, in step S1, the washing water pressure of the ore washer is 147 kpa, and the washing time of the ore washer is 20 minutes.
Specifically, in step S2, the drying temperature of the dryer is 120 degrees celsius, and the drying time of the dryer is 40 minutes.
Specifically, in step S3, the screening machine is provided with an upper screen and a lower screen, the mesh number of the upper screen is 110 meshes, and the mesh number of the lower screen is 90 meshes.
Specifically, in step S4, the composite nucleating agent includes chromium oxide and titanium dioxide, and the addition ratio of chromium oxide to titanium dioxide is 1: 3.
specifically, in step S4, the cosolvent includes potassium oxide and sodium oxide, and the addition ratio of potassium oxide to sodium oxide is 3: 5.
specifically, in step S5, the iron tailings, calcium carbonate, alumina, zirconia, composite nucleating agent and flux are added in the following proportions: 78: 12: 2.5: 3.5: 2: 2.
specifically, in step S9, a steam discharge system is installed above the water quenching tank, the primary water quenching of the frit is completed, and the steam discharge system of the water quenching tank is opened to discharge steam generated during the water quenching process.
Specifically, in step S14, when the glass ceramics is polished and cut, the scrap collecting device collects the scraps generated during the polishing process and the scraps generated during the cutting process.
Example 2
Referring to fig. 1, the present invention provides the following technical solutions: the iron tailing microcrystalline glass sintering process comprises the following steps:
s1: pouring the iron tailings into an ore washing machine for cleaning, and removing soil mixed in the iron tailings and clay attached to the surface of the iron tailings;
s2: pouring the cleaned iron tailings into a dryer for drying, and removing water stains on the surface of the iron tailings;
s3: pouring the dried iron tailings into a screening machine for screening to remove impurities in the iron tailings;
s4: preparing pretreated iron tailings, calcium carbonate, alumina, zirconia, a composite nucleating agent and a fluxing agent;
s5: pouring the iron tailings, calcium carbonate, alumina, zirconia, the composite nucleating agent and the fluxing agent into a mixer according to a certain proportion for mixing to prepare a mixture;
s6: pouring the mixture into a pulverizer to pulverize to obtain mixed powder;
s7: pouring the prepared mixed powder into a square-hole sieve with the diameter of 0.09mm for screening, and extracting and grinding the qualified mixed powder;
s8: transferring the extracted mixed powder into a glass melting furnace, heating the glass melting furnace at the speed of 10 ℃/min until the temperature is raised to 1400 ℃, melting for 65min, and cooling at the speed of 9 ℃/min to prepare a glass melt;
s9: quickly putting the prepared glass melt into a water quenching tank for water quenching treatment to prepare glass material;
s10: putting the prepared glass material into a dryer for drying;
s11: transferring the dried glass material into a refractory mold, transferring the refractory mold into a tunnel kiln, and performing sintering and crystallization heat treatment to obtain a microcrystalline glass blank;
s12: naturally cooling the prepared microcrystalline glass blank in air;
s13: performing quality inspection on the air-cooled and cooled microcrystalline glass blank, and removing the sintered unqualified microcrystalline glass blank;
s14: polishing and cutting the microcrystalline glass blank after the quality inspection to obtain a finished microcrystalline glass product;
s15: performing quality inspection on the prepared microcrystalline glass finished product, and removing unqualified microcrystalline glass finished products;
s16: and (4) performing different packages on the prepared microcrystalline glass finished product according to factors such as the transportation distance to an application place, the transportation mode, the transportation road section and the like.
Specifically, in step S1, the washing water pressure of the ore washer is 172 kpa, and the washing time of the ore washer is 25 minutes.
Specifically, in step S2, the drying temperature of the dryer is 135 degrees celsius, and the drying time of the dryer is 50 minutes.
Specifically, in step S3, the screening machine is provided with an upper screen and a lower screen, the mesh number of the upper screen is 110 meshes, and the mesh number of the lower screen is 90 meshes.
Specifically, in step S4, the composite nucleating agent includes chromium oxide and titanium dioxide, and the addition ratio of chromium oxide to titanium dioxide is 1: 3.
specifically, in step S4, the cosolvent includes potassium oxide and sodium oxide, and the addition ratio of potassium oxide to sodium oxide is 3: 5.
specifically, in step S5, the iron tailings, calcium carbonate, alumina, zirconia, composite nucleating agent and flux are added in the following proportions: 78: 12: 2.5: 3.5: 2: 2.
specifically, in step S9, a steam discharge system is installed above the water quenching tank, the primary water quenching of the frit is completed, and the steam discharge system of the water quenching tank is opened to discharge steam generated during the water quenching process.
Specifically, in step S14, when the glass ceramics is polished and cut, the scrap collecting device collects the scraps generated during the polishing process and the scraps generated during the cutting process.
Example 3
Referring to fig. 1, the present invention provides the following technical solutions: the iron tailing microcrystalline glass sintering process comprises the following steps:
s1: pouring the iron tailings into an ore washing machine for cleaning, and removing soil mixed in the iron tailings and clay attached to the surface of the iron tailings;
s2: pouring the cleaned iron tailings into a dryer for drying, and removing water stains on the surface of the iron tailings;
s3: pouring the dried iron tailings into a screening machine for screening to remove impurities in the iron tailings;
s4: preparing pretreated iron tailings, calcium carbonate, alumina, zirconia, a composite nucleating agent and a fluxing agent;
s5: pouring the iron tailings, calcium carbonate, alumina, zirconia, the composite nucleating agent and the fluxing agent into a mixer according to a certain proportion for mixing to prepare a mixture;
s6: pouring the mixture into a pulverizer to pulverize to obtain mixed powder;
s7: pouring the prepared mixed powder into a square-hole sieve with the diameter of 0.09mm for screening, and extracting and grinding the qualified mixed powder;
s8: transferring the extracted mixed powder into a glass melting furnace, heating the glass melting furnace at the speed of 11 ℃/min until the temperature is raised to 1500 ℃, stopping melting for 75min, and cooling at the speed of 10 ℃/min to prepare a glass melt;
s9: quickly putting the prepared glass melt into a water quenching tank for water quenching treatment to prepare glass material;
s10: putting the prepared glass material into a dryer for drying;
s11: transferring the dried glass material into a refractory mold, transferring the refractory mold into a tunnel kiln, and performing sintering and crystallization heat treatment to obtain a microcrystalline glass blank;
s12: naturally cooling the prepared microcrystalline glass blank in air;
s13: performing quality inspection on the air-cooled and cooled microcrystalline glass blank, and removing the sintered unqualified microcrystalline glass blank;
s14: polishing and cutting the microcrystalline glass blank after the quality inspection to obtain a finished microcrystalline glass product;
s15: performing quality inspection on the prepared microcrystalline glass finished product, and removing unqualified microcrystalline glass finished products;
s16: and (4) performing different packages on the prepared microcrystalline glass finished product according to factors such as the transportation distance to an application place, the transportation mode, the transportation road section and the like.
Specifically, in step S1, the washing water pressure of the ore washer is 196 kpa, and the washing time of the ore washer is 30 minutes.
Specifically, in step S2, the drying temperature of the dryer is 150 degrees celsius, and the drying time of the dryer is 60 minutes.
Specifically, in step S3, the screening machine is provided with an upper screen and a lower screen, the mesh number of the upper screen is 110 meshes, and the mesh number of the lower screen is 90 meshes.
Specifically, in step S4, the composite nucleating agent includes chromium oxide and titanium dioxide, and the addition ratio of chromium oxide to titanium dioxide is 1: 3.
specifically, in step S4, the cosolvent includes potassium oxide and sodium oxide, and the addition ratio of potassium oxide to sodium oxide is 3: 5.
specifically, in step S5, the iron tailings, calcium carbonate, alumina, zirconia, composite nucleating agent and flux are added in the following proportions: 78: 12: 2.5: 3.5: 2: 2.
specifically, in step S9, a steam discharge system is installed above the water quenching tank, the primary water quenching of the frit is completed, and the steam discharge system of the water quenching tank is opened to discharge steam generated during the water quenching process.
Specifically, in step S14, when the glass ceramics is polished and cut, the scrap collecting device collects the scraps generated during the polishing process and the scraps generated during the cutting process.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The iron tailing microcrystalline glass sintering process is characterized by comprising the following steps of:
s1: pouring the iron tailings into an ore washing machine for cleaning, and removing soil mixed in the iron tailings and clay attached to the surface of the iron tailings;
s2: pouring the cleaned iron tailings into a dryer for drying, and removing water stains on the surface of the iron tailings;
s3: pouring the dried iron tailings into a screening machine for screening to remove impurities in the iron tailings;
s4: preparing pretreated iron tailings, calcium carbonate, alumina, zirconia, a composite nucleating agent and a fluxing agent;
s5: pouring the iron tailings, calcium carbonate, alumina, zirconia, the composite nucleating agent and the fluxing agent into a mixer according to a certain proportion for mixing to prepare a mixture;
s6: pouring the mixture into a pulverizer to pulverize to obtain mixed powder;
s7: pouring the prepared mixed powder into a square-hole sieve with the diameter of 0.09mm for screening, and extracting and grinding the qualified mixed powder;
s8: transferring the extracted mixed powder into a glass melting furnace, heating the glass melting furnace at the speed of 10-11 ℃/min until the temperature rises to 1300 ℃ and 1500 ℃, stopping melting for 60-75 min, and cooling at the speed of 8-10 ℃/min to prepare a glass melt;
s9: quickly putting the prepared glass melt into a water quenching tank for water quenching treatment to prepare glass material;
s10: putting the prepared glass material into a dryer for drying;
s11: transferring the dried glass material into a refractory mold, transferring the refractory mold into a tunnel kiln, and performing sintering and crystallization heat treatment to obtain a microcrystalline glass blank;
s12: naturally cooling the prepared microcrystalline glass blank in air;
s13: performing quality inspection on the air-cooled and cooled microcrystalline glass blank, and removing the sintered unqualified microcrystalline glass blank;
s14: polishing and cutting the microcrystalline glass blank after the quality inspection to obtain a finished microcrystalline glass product;
s15: performing quality inspection on the prepared microcrystalline glass finished product, and removing unqualified microcrystalline glass finished products;
s16: and (4) performing different packages on the prepared microcrystalline glass finished product according to factors such as the transportation distance to an application place, the transportation mode, the transportation road section and the like.
2. The sintering process of the iron tailing microcrystalline glass as claimed in claim 1, wherein the sintering process comprises the following steps: in the step S1, the washing water pressure of the ore washer is 147-.
3. The sintering process of the iron tailing microcrystalline glass as claimed in claim 1, wherein the sintering process comprises the following steps: in the step S2, the drying temperature of the dryer is 120-.
4. The sintering process of the iron tailing microcrystalline glass as claimed in claim 1, wherein the sintering process comprises the following steps: in the step S3, the screening machine is provided with an upper screen and a lower screen, the mesh number of the upper screen is 110 meshes, and the mesh number of the lower screen is 90 meshes.
5. The sintering process of the iron tailing microcrystalline glass as claimed in claim 1, wherein the sintering process comprises the following steps: in step S4, the composite nucleating agent includes chromium oxide and titanium dioxide, and the addition ratio of chromium oxide to titanium dioxide is 1: 3.
6. the sintering process of the iron tailing microcrystalline glass as claimed in claim 1, wherein the sintering process comprises the following steps: in the step S4, the cosolvent includes potassium oxide and sodium oxide, and the addition ratio of potassium oxide to sodium oxide is 3: 5.
7. the sintering process of the iron tailing microcrystalline glass as claimed in claim 1, wherein the sintering process comprises the following steps: in the step S5, the addition ratio of the iron tailings, the calcium carbonate, the alumina, the zirconia, the composite nucleating agent and the fluxing agent is as follows: 78: 12: 2.5: 3.5: 2: 2.
8. the sintering process of the iron tailing microcrystalline glass as claimed in claim 1, wherein the sintering process comprises the following steps: in the step S9, a steam discharge system is installed above the water quenching tank, the primary water quenching of the frit is completed, and the steam discharge system of the water quenching tank is opened to discharge steam generated in the water quenching process.
9. The sintering process of the iron tailing microcrystalline glass as claimed in claim 1, wherein the sintering process comprises the following steps: in step S14, when the glass ceramics is polished and cut, the scrap collecting device collects the scraps generated in the polishing process and the scraps generated in the cutting process.
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