CN111847846B - Preparation method of large-size glass beads with refractive index greater than or equal to 1.7 and bead forming device thereof - Google Patents
Preparation method of large-size glass beads with refractive index greater than or equal to 1.7 and bead forming device thereof Download PDFInfo
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- CN111847846B CN111847846B CN202010775537.0A CN202010775537A CN111847846B CN 111847846 B CN111847846 B CN 111847846B CN 202010775537 A CN202010775537 A CN 202010775537A CN 111847846 B CN111847846 B CN 111847846B
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- 239000011521 glass Substances 0.000 title claims abstract description 191
- 239000011324 bead Substances 0.000 title claims abstract description 88
- 238000002360 preparation method Methods 0.000 title claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 193
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 100
- 239000000956 alloy Substances 0.000 claims abstract description 100
- 238000010791 quenching Methods 0.000 claims abstract description 43
- 230000000171 quenching effect Effects 0.000 claims abstract description 43
- 238000007599 discharging Methods 0.000 claims abstract description 31
- 238000002844 melting Methods 0.000 claims abstract description 23
- 230000008018 melting Effects 0.000 claims abstract description 23
- 238000004519 manufacturing process Methods 0.000 claims abstract description 20
- 238000005485 electric heating Methods 0.000 claims abstract description 15
- 239000006066 glass batch Substances 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims description 117
- 238000010438 heat treatment Methods 0.000 claims description 43
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 38
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 38
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 38
- 238000002156 mixing Methods 0.000 claims description 35
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 34
- 238000000034 method Methods 0.000 claims description 34
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims description 32
- 238000003756 stirring Methods 0.000 claims description 31
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 27
- 239000000203 mixture Substances 0.000 claims description 24
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 24
- 230000008569 process Effects 0.000 claims description 24
- 239000012153 distilled water Substances 0.000 claims description 22
- 239000000395 magnesium oxide Substances 0.000 claims description 20
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 20
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 20
- 239000006004 Quartz sand Substances 0.000 claims description 19
- AYJRCSIUFZENHW-DEQYMQKBSA-L barium(2+);oxomethanediolate Chemical compound [Ba+2].[O-][14C]([O-])=O AYJRCSIUFZENHW-DEQYMQKBSA-L 0.000 claims description 19
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 19
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 19
- 239000004408 titanium dioxide Substances 0.000 claims description 19
- 239000011787 zinc oxide Substances 0.000 claims description 19
- BDAGIHXWWSANSR-NJFSPNSNSA-N hydroxyformaldehyde Chemical compound O[14CH]=O BDAGIHXWWSANSR-NJFSPNSNSA-N 0.000 claims description 18
- 229910000018 strontium carbonate Inorganic materials 0.000 claims description 18
- 229910000410 antimony oxide Inorganic materials 0.000 claims description 17
- VTRUBDSFZJNXHI-UHFFFAOYSA-N oxoantimony Chemical compound [Sb]=O VTRUBDSFZJNXHI-UHFFFAOYSA-N 0.000 claims description 17
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 17
- 229910000027 potassium carbonate Inorganic materials 0.000 claims description 16
- 238000007873 sieving Methods 0.000 claims description 13
- 238000005507 spraying Methods 0.000 claims description 13
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 12
- 229910052697 platinum Inorganic materials 0.000 claims description 12
- 238000001035 drying Methods 0.000 claims description 11
- 238000003892 spreading Methods 0.000 claims description 11
- 230000007480 spreading Effects 0.000 claims description 11
- 239000011449 brick Substances 0.000 claims description 4
- 239000000377 silicon dioxide Substances 0.000 claims description 4
- 230000007246 mechanism Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 2
- 230000008719 thickening Effects 0.000 claims 1
- 230000003287 optical effect Effects 0.000 abstract description 7
- 230000009471 action Effects 0.000 description 12
- 238000010009 beating Methods 0.000 description 11
- 230000001105 regulatory effect Effects 0.000 description 9
- 238000005406 washing Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 239000012634 fragment Substances 0.000 description 6
- 238000007664 blowing Methods 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
- 239000000567 combustion gas Substances 0.000 description 2
- 238000010924 continuous production Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000004005 microsphere Substances 0.000 description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 238000006124 Pilkington process Methods 0.000 description 1
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B19/00—Other methods of shaping glass
- C03B19/10—Forming beads
- C03B19/1005—Forming solid beads
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
- C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
- C03B5/235—Heating the glass
-
- 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
- C03C1/00—Ingredients generally applicable to manufacture of glasses, glazes, or vitreous enamels
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Manufacturing & Machinery (AREA)
- Glass Compositions (AREA)
Abstract
The invention discloses a preparation method of large-size glass beads with refractive index greater than or equal to 1.7 and a bead forming device thereof, wherein the bead forming device comprises a discharging funnel, the discharging funnel is connected with the feeding end of an alloy furnace tube of a calciner, the alloy furnace tube is driven to rotate by a first engine, a thermocouple and an electric heating wire are arranged in the calciner, the thermocouple and the electric heating wire are connected with a temperature controller outside the calciner, the discharging end of the alloy furnace tube is connected with a receiving funnel, and a movable hammer which is driven by a second engine and is used for reciprocally knocking the alloy furnace tube is arranged at the discharging end of the alloy furnace tube; the preparation method comprises the specific steps of preparing a batch, melting the batch, water quenching, preparing a water quenched glass batch with middle size, and beading by using a beading device. The glass beads prepared by the preparation method and the beading device have the diameter of more than 1mm, good optical performance, high mechanical strength, high stability and high yield, and can reduce the production cost while improving the productivity.
Description
Technical Field
The invention relates to the technical field of glass bead production, in particular to a preparation method of large-size glass beads with refractive index greater than or equal to 1.7 and a bead forming device thereof.
Background
The glass beads are novel silicate materials, have the characteristics of transparency, adjustable refractive index, directional retro-reflection, smooth surface, electric insulation and the like, and are often used as reflective marks or road surface marks.
The reflective glass beads applied to traffic signs, art propaganda and the like in the market at present are glass beads with smaller refractive indexes, and the reflective glass beads are used as reflective signs or road pavement signs in highway and traffic, so that the defects of insufficient reflective performance and insufficient reflective distance exist, particularly the visibility of road traffic on rainy night days is greatly reduced, the reflective effect of reflective ground marks on the road surface is greatly reduced after the road is wet or soaked by rainwater, and traffic signs on the road surface are difficult to identify by twenty-ten meters away from the reflective ground marks, so traffic accidents are extremely easy to occur.
The all-weather high refractive index glass microsphere is a basic optical application material, and is characterized by that it can make incident light undergo the process of directional retroflection to produce bright reflecting effect so as to obtain bright visual sense. All-weather high-refractive-index glass beads have stronger light reflecting effect and light reflecting function, so that the glass beads are more and more valued by the market, but the high-refractive-index glass beads with high reflection performance are more and more widely applied, and the number of products produced on the market is difficult to meet the actual needs of the products.
At present, the methods for preparing glass beads on the market are more such as powder method, melt method, flame float method and the like, but all the methods are used for preparing glass beads with common refractive index, are not common to the methods for preparing high-refractive glass beads, and particularly in the aspect of bead-forming combustion of all-weather glass beads, only a single pure air or gas mode is usually adopted, so that the prepared glass beads are difficult to meet the requirement of high refractive index. In the method for preparing the glass beads with high refractive index in the prior art, the flame length of combustion gas is increased when the combustion gas is combusted in a beading furnace to ensure that the raw materials are fully heated, so that the raw materials can be completely melted, the yield is improved, the raw materials are cooled within 1-30s, the internal stress is reduced, the optical performance of the glass beads is ensured, the glass beads with the diameter of 150-1060 microns and the refractive index of 1.90-1.95 can be mass produced, but the flame length required by the method is longer, the height of the beading furnace is increased, the temperature gradient of the flame in the length direction is overlarge, and the product stability is influenced; some glass beads of 1.93 are prepared by using a slurry spraying beading method, and although the high yield and the high stability of high-refractive-index glass bead production are realized, the large-scale batch production can be realized, the large-specification high-refractive-index glass beads, especially glass beads with the diameter of more than 1mm, cannot be produced in batches well by adopting the method, the rejection rate is high, the optical performance and the mechanical strength of the produced glass beads are not very good, and the production cost of manufacturers is greatly increased.
Therefore, how to provide a preparation method of high-refraction glass beads is a real requirement of current glass bead preparation enterprises.
Disclosure of Invention
The invention aims to provide a preparation method of large-size glass beads with refractive index larger than or equal to 1.7 and a beading device thereof, and the glass beads prepared by the preparation method and the beading device have large size with diameter larger than 1mm, good optical performance, high mechanical strength, good light reflection effect, high stability, high yield, mass production and short preparation time, and can reduce production cost while improving productivity.
The aim of the invention is achieved by the following technical scheme:
The utility model provides a beading device of jumbo size glass bead that refracting index is greater than or equal to 1.7, including the blowing funnel, the discharge gate of blowing funnel passes through the discharging pipe and links to each other with the alloy boiler tube feed end of calciner, the both ends of alloy boiler tube run through calciner and alloy boiler tube pass through first engine drive and rotate, be equipped with in the calciner be used for measuring alloy boiler tube temperature the thermocouple, be used for heating alloy boiler tube's heating wire, thermocouple and heating wire all link to each other with the outer temperature controller of calciner, the discharge end of alloy boiler tube links to each other with the receiving funnel, alloy boiler tube discharge end department is equipped with the activity drive hammer that is used for reciprocal striking alloy boiler tube by the second engine drive.
Further, the discharging pipe is an alloy steel pipe, a funnel switch for controlling discharging is arranged on the alloy steel pipe, and a discharging hole of the alloy steel pipe is inserted into 5 centimeters in the alloy furnace pipe.
Further, two alloy furnace tubes are arranged, a thermocouple is positioned between the two alloy furnace tubes and is close to the alloy furnace tubes, the feeding end of the alloy furnace tubes is higher than the discharging end, the feeding end of the first engine and the feeding end of the alloy furnace tubes form a belt transmission mechanism through a sleeved gear chain, and teeth capable of being meshed with the gear chain are arranged at the feeding end of the alloy furnace tubes.
Further, the discharge end of the alloy furnace tube is thickened.
Furthermore, the side of the calciner is provided with a frame body, the frame body is provided with a bearing with an inner ring connected with the alloy furnace tube, and a gap is reserved between the alloy furnace tube and the inner ring of the bearing.
Further, the shell of the calciner is a silica brick furnace wall.
The preparation method for preparing the large-size glass beads with the refractive index being more than or equal to 1.7 based on any one of the beading devices comprises the following specific steps:
Step one: mixing 30-34% of quartz sand, 8-12% of calcium carbonate, 12-16.26% of titanium dioxide, 26-32% of barium carbonate, 1-3% of zinc oxide, 0.4-1.2% of aluminum oxide, 0.8-1.4% of magnesium oxide, 0.4-1% of strontium carbonate, 6-10% of sodium carbonate, 0.2-1.02% of potassium carbonate and 0.6-1.2% of antimony oxide according to mass percentage, spraying distilled water with the mass being 2% -4% of the total mass of the mixture in the mixing process, and mixing until the uniformity is more than 98.5%, thus obtaining a mixture;
Step two: heating a heating furnace to 1440-1480 ℃, adding the batch obtained in the step one into a platinum crucible of the heating furnace, melting for 20-40 min, stirring for 20-40 min, pouring into distilled water at 30 ℃ for water quenching, and obtaining water quenched glass batch;
step three: spreading the water quenched glass frit in a tray, putting the water quenched glass frit in an oven, drying the water quenched glass frit for 5 hours at the temperature of 100 ℃, crushing the dried water quenched glass frit by using a crusher, and sequentially sieving the crushed water quenched glass frit with a 20-mesh sieve and a 30-mesh sieve to leave water quenched glass frit with middle size;
Step four: beading by using a beading device: and (3) adjusting a temperature controller to enable an electric heating wire to heat the inside of the calciner to 800-900 ℃, opening a first engine and a second engine to enable the first engine to drive an alloy furnace tube to rotate, enabling a movable hammer to reciprocally strike the discharge end of the alloy furnace tube, adding the water quenched glass material with the middle size obtained in the step (III) into a discharging funnel to enable the water quenched glass material to fall into a receiving funnel after being beaded by the alloy furnace tube, sequentially sieving a beaded product with a 20-mesh sieve and a 30-mesh sieve to remove a bonding part and scraps, and finally obtaining the large-size glass beads with the refractive index of more than or equal to 1.7.
Further, in the first step, a QH type strong mixer is used for mixing.
Further, stirring is carried out during water quenching in the second step.
Further, in the third step, the water quenched glass material is washed before being paved in a tray, and the crusher is a jaw crusher.
Compared with the prior art, the invention has the following beneficial effects:
The beading device has simple and reasonable structure, wherein the first engine drives the alloy furnace tube to rotate so that the glass beads are heated uniformly and reduced in internal stress, the finally obtained glass beads have good optical performance and high mechanical strength, the stability and the yield of products are improved, the second engine drives the movable hammer to reciprocally strike the side surface of the discharge end of the alloy furnace tube, the water quenching materials are not adhered to the tube, the adhered products are separated, scraps are removed, the whole beading process is continuous production, and the full-automatic process is from feeding to output, so that the preparation time is saved, and the production efficiency is improved.
Further, the alloy steel tube is inserted into the alloy furnace tube, so that the mounting and dismounting are convenient, and the replacement of the discharging funnel is convenient according to actual conditions.
Furthermore, the thermocouple is placed between the two alloy furnace tubes, so that the measured temperature is more accurate, and the inclined placement of the alloy furnace tubes is convenient for blanking.
Further, the arrangement of the bearing can enable the rotation of the alloy furnace tube to be easier, and the bearing can also play a role in supporting and fixing the involution Jin Luguan.
Furthermore, the silica brick furnace wall has good fireproof and heat-insulating effects, and can be relieved by gaps when being heated and expanded.
According to the preparation method, unique glass formula design is carried out according to a glass formation theory, so that a glass system with all-weather high refractive index (nd more than or equal to 1.7) and special physical and chemical performance requirements is formed; glass is prepared by high-temperature melting through a magnetic platinum continuous melting kiln technology, so as to form glass microsphere raw materials; the special bead spraying and collecting are carried out by utilizing the bead forming device, the glass frit is formed into beads by utilizing the surface tension and accurately controlling the temperature and atmosphere of a furnace body, the process is simple, the daily production is up to two tons of beads, continuous production is carried out, the furnace alloy can rise to the bead forming temperature without damaging the furnace during production, the furnace tube is oriented, the beads are heated uniformly and easily, the hammering is arranged at the rear, the balling efficiency is high, the defects are few, thereby forming large-size all-weather high-refraction glass beads, the whole preparation time is short, the production cost can be reduced while the production rate is improved, and the obtained product has good optical performance, high mechanical strength, good reflection effect, high stability and high yield and can be produced in a large batch stably.
Drawings
FIG. 1 is a schematic diagram of the whole structure of a beading device for large-size glass beads with refractive index greater than or equal to 1.7;
FIG. 2 is a top view of FIG. 1 in accordance with the present invention;
fig. 3 is a cross-sectional view taken along A-A of fig. 1 in accordance with the present invention.
Wherein, 1-the desk body; 2-a discharging funnel; 3-a funnel switch; 4-alloy steel pipe; 5-alloy furnace tube; 6-a gear chain; 7-a first engine; 8-bearing; 9-a base; 10-heating wire; 11-a thermocouple; 12-a calciner; 13-a movable hammer; 14-a receiving hopper; 15-a second engine; 16-temperature controller.
Detailed Description
The invention is described in further detail below with reference to the drawings and the specific embodiments.
As shown in fig. 1, the beading device for large-size glass beads with the refractive index being greater than or equal to 1.7 comprises a discharge funnel 2 fixed on a table body 1, wherein the upper part of the discharge funnel 2 is charged and the lower part of the discharge funnel is discharged, a discharge pipe is connected to a discharge port of the discharge funnel 2, the discharge pipe is an alloy steel pipe 4, and a funnel switch 3 for controlling discharge is arranged on the alloy steel pipe 4.
The discharge gate of alloy steel pipe 4 links to each other with the alloy furnace pipe 5 feed end of calciner 12, the both ends of alloy furnace pipe 5 run through calciner 12, calciner 12 shell is preferably the silica brick furnace wall that has good heat preservation effect, calciner 12 is installed on base 9, and it is preferable that the feed end is higher than the feed end and put to one side, i.e. the feed end of alloy furnace pipe 5 is higher than the feed end and put to one side, for convenient installation and disassembly, be convenient for carry out the change of blowing funnel according to actual feeding condition, peg graft alloy steel pipe 4 to 5 public department in the alloy furnace pipe 5, in order to improve production efficiency, see fig. 2, alloy furnace pipe 5 is equipped with two, and correspondingly set up two blowing funnels 2, alloy furnace pipe 5 carries out the drive rotation through first action 7, in this embodiment, the support is set up at the bottom of calciner 12 in the selection, fixedly place first action 7 on the support, the feed end of first action 7 and the feed end department of alloy furnace pipe 5 forms the area drive mechanism through cup jointing gear chain 6, alloy furnace pipe 5 feed end department is equipped with can with the tooth that meshes with gear chain 6, in order to make the rotation of furnace pipe 5 be easier, the left side is equipped with the inner ring 8 for the inner ring 8, the expansion bearing is set up in the inner ring 8, i.e. the expansion bearing is set up between the inner ring 8 for the inner ring 8 on the side of the bearing is set up for the inner ring 8 of the furnace pipe, that is used for the expansion bearing 8 is heated.
The thermocouple 11 for measuring the temperature of the alloy furnace tube 5 and the heating wire 10 for heating the alloy furnace tube 5 are arranged in the calciner 12, the thermocouple 11 and the heating wire 10 are connected with the temperature controller 16 outside the calciner 12, the heating wire 10 is controlled by the temperature controller 16 to heat, the temperature data measured by the thermocouple 11 are displayed on the temperature controller 16, in order to enable the measurement result of the thermocouple 11 to be more accurate, the thermocouple 11 is arranged between the two alloy furnace tubes 5 and close to the alloy furnace tube 5, and the heating wire 10 is uniformly arranged above and below the alloy furnace tube 5, see fig. 3.
The discharge end of the alloy furnace tube 5 is connected with a receiving hopper 14, a movable hammer 13 driven by a second engine 15 for beating the side surface of the alloy furnace tube 5 in a reciprocating manner is arranged at the discharge end of the alloy furnace tube 5, so that water quenching materials are not sticky to the tube, bonded products are separated, scraps are removed, the discharge end of the alloy furnace tube 5 can normally grow out of the right side 1 cm of the calciner 12, the discharge end of the alloy furnace tube 5 is thickened to adapt to long-term beating of the movable hammer 13, and the second engine 15 is a small engine because the power required for driving the movable hammer 13 is small, so that the second engine 15 can be directly fixed on the right side surface of the calciner 12.
The preparation of the large-size glass beads with the refractive index of 1.7 or more is carried out by using the beading device, and the following examples are:
Example 1
The invention relates to a preparation method of large-size glass beads with refractive index greater than or equal to 1.7, which comprises the following specific steps:
step one: preparing a batch. Taking 31.29% of quartz sand, 9.47% of calcium carbonate, 16.26% of titanium dioxide, 29.15% of barium carbonate, 2.03% of zinc oxide, 0.64% of aluminum oxide, 1.12% of magnesium oxide, 0.54% of strontium carbonate, 8.28% of sodium carbonate, 0.26% of potassium carbonate and 0.96% of antimony oxide according to the mass percentage, putting the materials into a QH type strong mixer for mixing for 4min, spraying distilled water with the mass being 3% of the total mass of the mixture in the mixing process, and obtaining the mixture after the mixing is finished, wherein the uniformity of the mixture is more than 98.5%;
Step two: and (5) melting and water quenching the batch. Heating a heating furnace to 1450 ℃, adding the batch obtained in the step one into a platinum crucible of the heating furnace, melting for 25min, then dropping a stirring paddle to stir for 30min, pouring into distilled water at 30 ℃ to perform water quenching, and stirring in the water quenching process to finally obtain a water quenching glass batch;
Step three: a water quenched frit of intermediate size was prepared. Washing, spreading the water quenched glass material in a tray, putting the water quenched glass material in an oven, drying the water quenched glass material at 100 ℃ for 5 hours, crushing the dried water quenched glass material by a jaw crusher, namely crushing the water quenched material and the large-size glass water quenched material which are bonded together, and sieving the water quenched glass material with a 20-mesh sieve and a 30-mesh sieve in sequence after crushing, so as to leave the water quenched glass material with a middle size;
Step four: and (5) performing beading by using a beading device. The temperature controller 16 is regulated to enable the electric heating wire 10to heat the inside of the calciner 12 to 800-900 ℃, the first engine 7 and the second engine 15 are opened, the first engine 7 drives the alloy furnace tube 5 to rotate, the movable hammer 13 is used for beating the discharge end of the alloy furnace tube 5 in a reciprocating manner, the rotating speed of the first engine 7 is determined by the glass bead material property, the water quenched glass material with the middle size obtained in the third step is added into the discharging funnel 2to enable the water quenched glass material to pass through the alloy furnace tube 5, the water quenched glass material is beaded under the action of surface tension and then falls into the receiving funnel 14, and then the beaded product is sequentially screened by a 20-mesh sieve and a 30-mesh sieve to remove bonding parts and fragments, so that the large-size glass beads with the refractive index of 1.725 are finally obtained.
Example 2
The invention relates to a preparation method of large-size glass beads with refractive index greater than or equal to 1.7, which comprises the following specific steps:
step one: preparing a batch. Taking 31.59% of quartz sand, 9.56% of calcium carbonate, 16.06% of titanium dioxide, 28.83% of barium carbonate, 2.05% of zinc oxide, 0.65% of aluminum oxide, 1.13% of magnesium oxide, 0.55% of strontium carbonate, 8.35% of sodium carbonate, 0.26% of potassium carbonate and 0.97% of antimony oxide according to the mass percentage, putting the quartz sand, the calcium carbonate, the titanium dioxide, the barium carbonate, the zinc oxide, the aluminum oxide, the magnesium oxide and the magnesium oxide into a QH type powerful mixer, mixing for 4min, spraying distilled water with the mass being 3% of the total mass of the mixture in the mixing process, and after the mixing is finished, obtaining the mixture, wherein the uniformity of the mixture is more than 98.5%;
Step two: and (5) melting and water quenching the batch. Heating a heating furnace to 1450 ℃, adding the batch obtained in the step one into a platinum crucible of the heating furnace, melting for 25min, then dropping a stirring paddle to stir for 30min, pouring into distilled water at 30 ℃ to perform water quenching, and stirring in the water quenching process to finally obtain a water quenching glass batch;
Step three: a water quenched frit of intermediate size was prepared. Washing, spreading the water quenched glass material in a tray, putting the water quenched glass material in an oven, drying the water quenched glass material at 100 ℃ for 5 hours, crushing the dried water quenched glass material by a jaw crusher, namely crushing the water quenched material and the large-size glass water quenched material which are bonded together, and sieving the water quenched glass material with a 20-mesh sieve and a 30-mesh sieve in sequence after crushing, so as to leave the water quenched glass material with a middle size;
Step four: and (5) performing beading by using a beading device. The temperature controller 16 is regulated to enable the electric heating wire 10 to heat the inside of the calciner 12 to 800-900 ℃, the first engine 7 and the second engine 15 are opened, the first engine 7 drives the alloy furnace tube 5 to rotate, the movable hammer 13 is used for beating the discharge end of the alloy furnace tube 5 in a reciprocating manner, the rotating speed of the first engine 7 is determined by the glass bead material property, the water quenched glass material with the middle size obtained in the third step is added into the discharging funnel 2 to enable the water quenched glass material to pass through the alloy furnace tube 5, the water quenched glass material is beaded under the action of surface tension and then falls into the receiving funnel 14, and then beaded products are sequentially screened by a 20-mesh sieve and a 30-mesh sieve to remove bonding parts and fragments, so that the large-size glass beads with the refractive index of 1.7149 are finally obtained.
Example 3
The invention relates to a preparation method of large-size glass beads with refractive index greater than or equal to 1.7, which comprises the following specific steps:
step one: preparing a batch. Taking 31.94% of quartz sand, 9.66% of calcium carbonate, 15.8% of titanium dioxide, 28.48% of barium carbonate, 2.07% of zinc oxide, 0.65% of aluminum oxide, 1.14% of magnesium oxide, 0.56% of strontium carbonate, 8.45% of sodium carbonate, 0.27% of potassium carbonate and 0.98% of antimony oxide according to the mass percentage, putting the quartz sand, the calcium carbonate, the titanium dioxide, the barium carbonate, the zinc oxide, the aluminum oxide, the magnesium oxide, the strontium carbonate, the 8.45% of sodium carbonate, the 0.27% of potassium carbonate and the 0.98% of antimony oxide into a QH type strong mixer for mixing for 4min, spraying distilled water with the mass being 3% of the total mass of the mixture in the mixing process, and obtaining the mixture after the mixing is finished, wherein the uniformity of the mixture is more than 98.5%;
Step two: and (5) melting and water quenching the batch. Heating a heating furnace to 1450 ℃, adding the batch obtained in the step one into a platinum crucible of the heating furnace, melting for 25min, then dropping a stirring paddle to stir for 30min, pouring into distilled water at 30 ℃ to perform water quenching, and stirring in the water quenching process to finally obtain a water quenching glass batch;
Step three: a water quenched frit of intermediate size was prepared. Washing, spreading the water quenched glass material in a tray, putting the water quenched glass material in an oven, drying the water quenched glass material at 100 ℃ for 5 hours, crushing the dried water quenched glass material by a jaw crusher, namely crushing the water quenched material and the large-size glass water quenched material which are bonded together, and sieving the water quenched glass material with a 20-mesh sieve and a 30-mesh sieve in sequence after crushing, so as to leave the water quenched glass material with a middle size;
Step four: and (5) performing beading by using a beading device. The temperature controller 16 is regulated to enable the electric heating wire 10 to heat the inside of the calciner 12 to 800-900 ℃, the first engine 7 and the second engine 15 are opened, the first engine 7 drives the alloy furnace tube 5 to rotate, the movable hammer 13 is used for beating the discharge end of the alloy furnace tube 5 in a reciprocating manner, the rotating speed of the first engine 7 is determined by the glass bead material property, the water quenched glass material with the middle size obtained in the third step is added into the discharging funnel 2 to enable the water quenched glass material to pass through the alloy furnace tube 5, the water quenched glass material is beaded under the action of surface tension and then falls into the receiving funnel 14, and then the beaded product is sequentially screened by a 20-mesh sieve and a 30-mesh sieve to remove bonding parts and fragments, so that the large-size glass beads with the refractive index of 1.72 are finally obtained.
Example 4
The invention relates to a preparation method of large-size glass beads with refractive index greater than or equal to 1.7, which comprises the following specific steps:
Step one: preparing a batch. Taking 32.24% of quartz sand, 9.77% of calcium carbonate, 15.53% of titanium dioxide, 28.2% of barium carbonate, 2.09% of zinc oxide, 0.66% of aluminum oxide, 1.15% of magnesium oxide, 0.57% of strontium carbonate, 8.53% of sodium carbonate, 0.27% of potassium carbonate and 0.99% of antimony oxide according to the mass percentage, putting the quartz sand, the calcium carbonate, the titanium dioxide, the barium carbonate, the zinc oxide, the aluminum oxide, the magnesium oxide, the strontium carbonate, the 8.53% of sodium carbonate and the 0.27% of potassium carbonate into a QH type strong mixer for mixing for 4min, spraying distilled water with the mass being 3% of the total mass of the mixture in the mixing process, and obtaining the mixture after the mixing is finished, wherein the uniformity of the mixture is more than 98.5%;
Step two: and (5) melting and water quenching the batch. Heating a heating furnace to 1450 ℃, adding the batch obtained in the step one into a platinum crucible of the heating furnace, melting for 25min, then dropping a stirring paddle to stir for 30min, pouring into distilled water at 30 ℃ to perform water quenching, and stirring in the water quenching process to finally obtain a water quenching glass batch;
Step three: a water quenched frit of intermediate size was prepared. Washing, spreading the water quenched glass material in a tray, putting the water quenched glass material in an oven, drying the water quenched glass material at 100 ℃ for 5 hours, crushing the dried water quenched glass material by a jaw crusher, namely crushing the water quenched material and the large-size glass water quenched material which are bonded together, and sieving the water quenched glass material with a 20-mesh sieve and a 30-mesh sieve in sequence after crushing, so as to leave the water quenched glass material with a middle size;
Step four: and (5) performing beading by using a beading device. The temperature controller 16 is regulated to enable the electric heating wire 10 to heat the inside of the calciner 12 to 800-900 ℃, the first engine 7 and the second engine 15 are opened, the first engine 7 drives the alloy furnace tube 5 to rotate, the movable hammer 13 is used for beating the discharge end of the alloy furnace tube 5 in a reciprocating manner, the rotating speed of the first engine 7 is determined by the glass bead material property, the water quenched glass material with the middle size obtained in the third step is added into the discharging funnel 2 to enable the water quenched glass material to pass through the alloy furnace tube 5, the water quenched glass material is beaded under the action of surface tension and then falls into the receiving funnel 14, and then the beaded product is sequentially screened by a 20-mesh sieve and a 30-mesh sieve to remove bonding parts and fragments, so that the large-size glass beads with the refractive index of 1.7149 are finally obtained.
Example 5
The invention relates to a preparation method of large-size glass beads with refractive index greater than or equal to 1.7, which comprises the following specific steps:
Step one: preparing a batch. Taking 32.3% of quartz sand, 9.9% of calcium carbonate, 15.22% of titanium dioxide, 27.4% of barium carbonate, 2.12% of zinc oxide, 0.67% of aluminum oxide, 1.17% of magnesium oxide, 0.57% of strontium carbonate, 8.65% of sodium carbonate, 1% of potassium carbonate and 1% of antimony oxide according to the mass percentage, putting the quartz sand, the calcium carbonate, the titanium dioxide, the barium carbonate, the zinc oxide, the aluminum oxide, the magnesium oxide, the strontium carbonate, the 8.65% of sodium carbonate, the 1% of potassium carbonate and the 1% of antimony oxide into a QH type strong mixer for mixing for 4min, spraying distilled water with the mass being 3% of the total mass of the mixture in the mixing process, and obtaining the batch after the mixing is finished, wherein the uniformity of the mixture is more than 98.5%;
Step two: and (5) melting and water quenching the batch. Heating a heating furnace to 1470 ℃, adding the batch obtained in the step one into a platinum crucible of the heating furnace, melting for 35min, then dropping a stirring paddle to stir for 30min, pouring into distilled water at 30 ℃ to perform water quenching, and stirring in the water quenching process to finally obtain a water quenching glass batch;
Step three: a water quenched frit of intermediate size was prepared. Washing, spreading the water quenched glass material in a tray, putting the water quenched glass material in an oven, drying the water quenched glass material at 100 ℃ for 5 hours, crushing the dried water quenched glass material by a jaw crusher, namely crushing the water quenched material and the large-size glass water quenched material which are bonded together, and sieving the water quenched glass material with a 20-mesh sieve and a 30-mesh sieve in sequence after crushing, so as to leave the water quenched glass material with a middle size;
Step four: and (5) performing beading by using a beading device. The temperature controller 16 is regulated to enable the electric heating wire 10 to heat the inside of the calciner 12 to 800-900 ℃, the first engine 7 and the second engine 15 are opened, the first engine 7 drives the alloy furnace tube 5 to rotate, the movable hammer 13 is used for beating the discharge end of the alloy furnace tube 5 in a reciprocating manner, the rotating speed of the first engine 7 is determined by the glass bead material property, the water quenched glass material with the middle size obtained in the third step is added into the discharging funnel 2 to enable the water quenched glass material to pass through the alloy furnace tube 5, the water quenched glass material is beaded under the action of surface tension and then falls into the receiving funnel 14, and then the beaded product is sequentially screened by a 20-mesh sieve and a 30-mesh sieve to remove bonding parts and fragments, so that the large-size glass beads with the refractive index of more than or equal to 1.723 are finally obtained.
Example 6
The invention relates to a preparation method of large-size glass beads with refractive index greater than or equal to 1.7, which comprises the following specific steps:
Step one: preparing a batch. Taking 33.25% of quartz sand, 10.06% of calcium carbonate, 14.94% of titanium dioxide, 26.3% of barium carbonate, 2.16% of zinc oxide, 0.68% of aluminum oxide, 1.19% of magnesium oxide, 0.58% of strontium carbonate, 8.8% of sodium carbonate, 1.02% of potassium carbonate and 1.02% of antimony oxide according to the mass percentage, putting the quartz sand, the calcium carbonate, the titanium dioxide, the barium carbonate, the zinc oxide, the aluminum oxide, the magnesium oxide, the strontium carbonate, the 8.8% of sodium carbonate, the 1.02% of potassium carbonate and the antimony oxide into a QH type strong mixer for mixing for 4min, spraying distilled water with the mass being 3% of the total mass of the mixture in the mixing process, and obtaining the mixture after the mixing is finished, wherein the uniformity of the mixture is more than 98.5%;
Step two: and (5) melting and water quenching the batch. Heating a heating furnace to 1470 ℃, adding the batch obtained in the step one into a platinum crucible of the heating furnace, melting for 35min, then dropping a stirring paddle to stir for 30min, pouring into distilled water at 30 ℃ to perform water quenching, and stirring in the water quenching process to finally obtain a water quenching glass batch;
Step three: a water quenched frit of intermediate size was prepared. Washing, spreading the water quenched glass material in a tray, putting the water quenched glass material in an oven, drying the water quenched glass material at 100 ℃ for 5 hours, crushing the dried water quenched glass material by a jaw crusher, namely crushing the water quenched material and the large-size glass water quenched material which are bonded together, and sieving the water quenched glass material with a 20-mesh sieve and a 30-mesh sieve in sequence after crushing, so as to leave the water quenched glass material with a middle size;
step four: and (5) performing beading by using a beading device. The temperature controller 16 is regulated to enable the electric heating wire 10 to heat the inside of the calciner 12 to 800-900 ℃, the first engine 7 and the second engine 15 are opened, the first engine 7 drives the alloy furnace tube 5 to rotate, the movable hammer 13 is used for beating the discharge end of the alloy furnace tube 5 in a reciprocating manner, the rotating speed of the first engine 7 is determined by the glass bead material property, the water quenched glass material with the middle size obtained in the third step is added into the discharging funnel 2 to enable the water quenched glass material to pass through the alloy furnace tube 5, the water quenched glass material is beaded under the action of surface tension and then falls into the receiving funnel 14, and then the beaded product is sequentially screened by a 20-mesh sieve and a 30-mesh sieve to remove bonding parts and fragments, so that the large-size glass beads with the refractive index of 1.712 or more are finally obtained.
Example 7
The invention relates to a preparation method of large-size glass beads with refractive index greater than or equal to 1.7, which comprises the following specific steps:
Step one: preparing a batch. Taking 30% of quartz sand, 12% of calcium carbonate, 12% of titanium dioxide, 32% of barium carbonate, 1% of zinc oxide, 0.4% of aluminum oxide, 1.4% of magnesium oxide, 0.4% of strontium carbonate, 10% of sodium carbonate, 0.2% of potassium carbonate and 0.6% of antimony oxide according to the mass percentage, putting the quartz sand, the calcium carbonate, the titanium dioxide, the barium carbonate, the zinc oxide, the aluminum oxide, the magnesium oxide, the strontium carbonate, the sodium carbonate, the potassium carbonate and the antimony oxide into a QH type strong mixer for mixing for 4min, spraying distilled water with the mass of 2% of the total mass of the mixture in the mixing process, and after the mixing is finished, obtaining the mixture with the uniformity of more than 98.5%;
Step two: and (5) melting and water quenching the batch. Heating a heating furnace to 1440 ℃, adding the batch obtained in the step one into a platinum crucible of the heating furnace, melting for 20min, then dropping a stirring paddle to stir for 40min, pouring into distilled water at 30 ℃ to perform water quenching, and stirring in the water quenching process to finally obtain a water quenching glass batch;
Step three: a water quenched frit of intermediate size was prepared. Washing, spreading the water quenched glass material in a tray, putting the water quenched glass material in an oven, drying the water quenched glass material at 100 ℃ for 5 hours, crushing the dried water quenched glass material by a jaw crusher, namely crushing the water quenched material and the large-size glass water quenched material which are bonded together, and sieving the water quenched glass material with a 20-mesh sieve and a 30-mesh sieve in sequence after crushing, so as to leave the water quenched glass material with a middle size;
step four: and (5) performing beading by using a beading device. The temperature controller 16 is regulated to enable the electric heating wire 10 to heat the inside of the calciner 12 to 800-900 ℃, the first engine 7 and the second engine 15 are opened, the first engine 7 drives the alloy furnace tube 5 to rotate, the movable hammer 13 is used for beating the discharge end of the alloy furnace tube 5 in a reciprocating manner, the rotating speed of the first engine 7 is determined by the glass bead material property, the water quenched glass material with the middle size obtained in the third step is added into the discharging funnel 2 to enable the water quenched glass material to pass through the alloy furnace tube 5, the water quenched glass material is beaded under the action of surface tension and then falls into the receiving funnel 14, and then the beaded product is sequentially screened by a 20-mesh sieve and a 30-mesh sieve to remove the bonding part and scraps, so that the large-size glass beads are finally obtained.
Example 8
The invention relates to a preparation method of large-size glass beads with refractive index greater than or equal to 1.7, which comprises the following specific steps:
Step one: preparing a batch. Taking 34% of quartz sand, 10.2% of calcium carbonate, 16% of titanium dioxide, 26% of barium carbonate, 3% of zinc oxide, 1.2% of aluminum oxide, 0.8% of magnesium oxide, 1% of strontium carbonate, 6% of sodium carbonate, 0.6% of potassium carbonate and 1.2% of antimony oxide according to the mass percentage, putting the quartz sand, the 10.2% of calcium carbonate, the 16% of titanium dioxide, the 26% of barium carbonate, the 3% of zinc oxide, the 1.2% of aluminum oxide, the 0.8% of magnesium oxide, the 1% of strontium carbonate, the 6% of sodium carbonate and the 1.2% of antimony oxide into a QH type strong mixer for mixing for 4min, spraying distilled water with the mass of 2% of the total mass of the mixture in the mixing process, and after the mixing is finished, obtaining the batch;
Step two: and (5) melting and water quenching the batch. Heating a heating furnace to 1480 ℃, adding the batch obtained in the step one into a platinum crucible of the heating furnace, melting for 20min, then dropping a stirring paddle to stir for 40min, pouring into distilled water at 30 ℃ to perform water quenching, and stirring in the water quenching process to finally obtain a water quenching glass batch;
Step three: a water quenched frit of intermediate size was prepared. Washing, spreading the water quenched glass material in a tray, putting the water quenched glass material in an oven, drying the water quenched glass material at 100 ℃ for 5 hours, crushing the dried water quenched glass material by a jaw crusher, namely crushing the water quenched material and the large-size glass water quenched material which are bonded together, and sieving the water quenched glass material with a 20-mesh sieve and a 30-mesh sieve in sequence after crushing, so as to leave the water quenched glass material with a middle size;
step four: and (5) performing beading by using a beading device. The temperature controller 16 is regulated to enable the electric heating wire 10 to heat the inside of the calciner 12 to 800-900 ℃, the first engine 7 and the second engine 15 are opened, the first engine 7 drives the alloy furnace tube 5 to rotate, the movable hammer 13 is used for beating the discharge end of the alloy furnace tube 5 in a reciprocating manner, the rotating speed of the first engine 7 is determined by the glass bead material property, the water quenched glass material with the middle size obtained in the third step is added into the discharging funnel 2 to enable the water quenched glass material to pass through the alloy furnace tube 5, the water quenched glass material is beaded under the action of surface tension and then falls into the receiving funnel 14, and then the beaded product is sequentially screened by a 20-mesh sieve and a 30-mesh sieve to remove the bonding part and scraps, so that the large-size glass beads are finally obtained.
Example 9
The invention relates to a preparation method of large-size glass beads with refractive index greater than or equal to 1.7, which comprises the following specific steps:
Step one: preparing a batch. Taking 34% of quartz sand, 8% of calcium carbonate, 16% of titanium dioxide, 28.2% of barium carbonate, 3% of zinc oxide, 1.2% of aluminum oxide, 0.8% of magnesium oxide, 1% of strontium carbonate, 6% of sodium carbonate, 0.6% of potassium carbonate and 1.2% of antimony oxide according to the mass percentage, putting the quartz sand, the 8% of calcium carbonate, the 16% of titanium dioxide, the 28.2% of barium carbonate, the 3% of zinc oxide, the 1.2% of aluminum oxide, the 0.8% of magnesium oxide, the 1% of strontium carbonate and the 1.2% of antimony oxide into a QH type strong mixer for mixing for 4min, spraying distilled water with the mass accounting for 4% of the total mass of the mixture in the mixing process, and after the mixing is finished, obtaining a batch;
Step two: and (5) melting and water quenching the batch. Heating a heating furnace to 1480 ℃, adding the batch obtained in the step one into a platinum crucible of the heating furnace, melting for 20min, then dropping a stirring paddle to stir for 40min, pouring into distilled water at 30 ℃ to perform water quenching, and stirring in the water quenching process to finally obtain a water quenching glass batch;
Step three: a water quenched frit of intermediate size was prepared. Washing, spreading the water quenched glass material in a tray, putting the water quenched glass material in an oven, drying the water quenched glass material at 100 ℃ for 5 hours, crushing the dried water quenched glass material by a jaw crusher, namely crushing the water quenched material and the large-size glass water quenched material which are bonded together, and sieving the water quenched glass material with a 20-mesh sieve and a 30-mesh sieve in sequence after crushing, so as to leave the water quenched glass material with a middle size;
step four: and (5) performing beading by using a beading device. The temperature controller 16 is regulated to enable the electric heating wire 10 to heat the inside of the calciner 12 to 800-900 ℃, the first engine 7 and the second engine 15 are opened, the first engine 7 drives the alloy furnace tube 5 to rotate, the movable hammer 13 is used for beating the discharge end of the alloy furnace tube 5 in a reciprocating manner, the rotating speed of the first engine 7 is determined by the glass bead material property, the water quenched glass material with the middle size obtained in the third step is added into the discharging funnel 2 to enable the water quenched glass material to pass through the alloy furnace tube 5, the water quenched glass material is beaded under the action of surface tension and then falls into the receiving funnel 14, and then the beaded product is sequentially screened by a 20-mesh sieve and a 30-mesh sieve to remove the bonding part and scraps, so that the large-size glass beads are finally obtained.
Claims (9)
1. A preparation method of large-size glass beads with refractive index greater than or equal to 1.7 is characterized by comprising the following steps: the method comprises the steps that glass beads are prepared by adopting a beading device, the beading device comprises a discharging funnel (2), a discharging hole of the discharging funnel (2) is connected with a feeding end of an alloy furnace tube (5) of a calciner (12) through a discharging pipe, two ends of the alloy furnace tube (5) penetrate through the calciner (12) and the alloy furnace tube (5) is driven to rotate through a first engine (7), a thermocouple (11) for measuring the temperature of the alloy furnace tube (5) and an electric heating wire (10) for heating the alloy furnace tube (5) are arranged in the calciner (12), the thermocouple (11) and the electric heating wire (10) are connected with a temperature controller (16) outside the calciner (12), the discharging end of the alloy furnace tube (5) is connected with a receiving funnel (14), and a movable hammer (13) which is driven by a second engine (15) and used for reciprocally knocking the alloy furnace tube (5) is arranged at the discharging end of the alloy furnace tube (5);
The preparation method comprises the following specific steps:
Step one: mixing 30-34% of quartz sand, 8-12% of calcium carbonate, 12-16.26% of titanium dioxide, 26-32% of barium carbonate, 1-3% of zinc oxide, 0.4-1.2% of aluminum oxide, 0.8-1.4% of magnesium oxide, 0.4-1% of strontium carbonate, 6-10% of sodium carbonate, 0.2-1.02% of potassium carbonate and 0.6-1.2% of antimony oxide according to mass percentage, spraying distilled water with the mass being 2% -4% of the total mass of the mixture in the mixing process, and mixing until the uniformity is more than 98.5%, thus obtaining a batch;
step two: heating a heating furnace to 1440-1480 ℃, adding the batch obtained in the step one into a platinum crucible of the heating furnace, melting for 20-40 min, stirring for 20-40 min, pouring into distilled water at 30 ℃ for water quenching, and obtaining water quenched glass batch;
Step three: spreading the water quenched glass frit in a tray, putting the water quenched glass frit in an oven, drying at 100 ℃ for 5h, crushing the dried water quenched glass frit by a crusher, and sequentially sieving the crushed water quenched glass frit with a 20-mesh sieve and a 30-mesh sieve to leave water quenched glass frit with middle size;
step four: beading by using a beading device: and (3) adjusting a temperature controller (16) to enable an electric heating wire (10) to heat the inside of a calciner (12) to 800-900 ℃, opening a first engine (7) and a second engine (15), enabling the first engine (7) to drive an alloy furnace tube (5) to rotate, enabling a movable hammer (13) to reciprocally strike the discharge end of the alloy furnace tube (5), adding the water quenched glass frit with the middle size obtained in the step (III) into a discharging funnel (2) to enable the water quenched glass frit to fall into a receiving funnel (14) after being beaded by the alloy furnace tube (5), and sequentially sieving a beaded product through a 20-mesh sieve and a 30-mesh sieve to remove bonding parts and scraps, thereby finally obtaining large-size glass beads with the refractive index of more than or equal to 1.7.
2. The method for producing large-sized glass beads having a refractive index of 1.7 or more according to claim 1, characterized by: the discharging pipe is an alloy steel pipe (4), a hopper switch (3) for controlling discharging is arranged on the alloy steel pipe (4), and a discharging hole of the alloy steel pipe (4) is inserted into a 5 cm position in the alloy furnace pipe (5).
3. The method for producing large-sized glass beads having a refractive index of 1.7 or more according to claim 1, characterized by: the alloy furnace tube (5) is provided with two, the thermocouple (11) is located between the two alloy furnace tubes (5) and is close to the alloy furnace tube (5), the feeding end of the alloy furnace tube (5) is higher than the feeding end, the feeding end of the first engine (7) and the feeding end of the alloy furnace tube (5) form a belt transmission mechanism through a sleeved gear chain (6), and teeth which can be meshed with the gear chain (6) are arranged at the feeding end of the alloy furnace tube (5).
4. The method for producing large-sized glass beads having a refractive index of 1.7 or more according to claim 1, characterized by: and thickening the discharge end of the alloy furnace tube (5).
5. The method for producing large-sized glass beads having a refractive index of 1.7 or more according to claim 1, characterized by: the side of the calciner (12) is provided with a frame body, the frame body is provided with a bearing (8) with an inner ring connected with the alloy furnace tube (5), and a gap is reserved between the alloy furnace tube (5) and the inner ring of the bearing (8).
6. The method for producing large-sized glass beads having a refractive index of 1.7 or more according to claim 1, characterized by: the shell of the calciner (12) is a silica brick furnace wall.
7. The method for producing large-sized glass beads having a refractive index of 1.7 or more according to claim 1, characterized by: in the first step, a QH type powerful mixer is used for mixing.
8. The method for producing large-sized glass beads having a refractive index of 1.7 or more according to claim 1, characterized by: stirring is carried out during water quenching in the second step.
9. The method for producing large-sized glass beads having a refractive index of 1.7 or more according to claim 1, characterized by: and in the third step, the water quenched glass material is washed before being paved in a disc, and the crusher is a jaw crusher.
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