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CN105980318A - Glass melt production device and glass article production method - Google Patents

Glass melt production device and glass article production method Download PDF

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Publication number
CN105980318A
CN105980318A CN201480066919.9A CN201480066919A CN105980318A CN 105980318 A CN105980318 A CN 105980318A CN 201480066919 A CN201480066919 A CN 201480066919A CN 105980318 A CN105980318 A CN 105980318A
Authority
CN
China
Prior art keywords
particle
glass melting
pelletize body
glass
pelletize
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201480066919.9A
Other languages
Chinese (zh)
Inventor
中川博之
宫崎诚司
大川智
渡边邦彦
加藤邦洋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AGC Inc
Original Assignee
Asahi Glass Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Asahi Glass Co Ltd filed Critical Asahi Glass Co Ltd
Publication of CN105980318A publication Critical patent/CN105980318A/en
Pending legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B1/00Preparing the batches
    • C03B1/02Compacting the glass batches, e.g. pelletising
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/28Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
    • B07B1/40Resonant vibration screens
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B3/00Charging the melting furnaces
    • C03B3/02Charging the melting furnaces combined with preheating, premelting or pretreating the glass-making ingredients, pellets or cullet
    • C03B3/026Charging the melting furnaces combined with preheating, premelting or pretreating the glass-making ingredients, pellets or cullet by charging the ingredients into a flame, through a burner or equivalent heating means used to heat the melting furnace
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00Technologies relating to the processing of minerals
    • Y02P40/50Glass production, e.g. reusing waste heat during processing or shaping
    • Y02P40/57Improving 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)
  • Glass Melting And Manufacturing (AREA)
  • Combined Means For Separation Of Solids (AREA)

Abstract

The invention discloses a glass melt production device and a glass article production method. The glass melt production device is capable of suppressing the attachment of fine powder onto an oven wall, a flue inner wall, or the like. One embodiment of a glass melt production device according to the present invention is provided with: a receiving device for receiving a granulated body having a glass raw material as the forming material; a sorting device whereby the granulated body, after being received by the receiving device, is sorted into first particles and second particles having a smaller average particle diameter than the average particle diameter of the first particles; and a glass melting oven for melting the first particles in the high-temperature atmosphere inside the oven.

Description

Glass melting material producing device and the manufacture method of glass article
Technical field
The present invention relates to the manufacture method of glass melting material producing device and glass article.
Background technology
Known by the high-temperature atmosphere in stove by frit pellet melting, build up and manufacture the sky of glass melting thing Middle fusion method (referring for example to patent documentation 1 to 3).In this aerial fusion method, major part frit particle is by plasma Or in the heating region of the formation such as burner or vitrification in flame.Therefore, aerial fusion method puts into extremely with by batch On glass melting thing, with burner on this glass melting thing formed batch pile heating melt existing melt Method is different.
Prior art literature
Patent documentation
Patent documentation 1: Japanese Patent Laid-Open 2008-100865 publication
Patent documentation 2: Japanese Patent Laid-Open 2009-137780 publication
Patent documentation 3: International Publication the 2011/021576th
Summary of the invention
Invent technical problem to be solved
In above-mentioned aerial fusion method, in the case of the frit particle being supplied in stove is pelletize body, the most sometimes It is contaminated with because a part of frit particle crumbles etc. and the tiny micropowder that produces.The light weight of this micropowder, the most floating, because of This cannot arrive the glass melts face of furnace bottom sometimes, and is attached to inwall or the furnace wall of the flue of aerofluxus.Accordingly, there exist cigarette The problem that road is blocked, and the micropowder the being attached to furnace wall reaction product that reacts with stove material and generate falls to glass and melts Liquid level, manufacture glass melting thing quality decline problem.
A kind of form of the present invention completes in view of the above problems, and one of its purpose is to provide one can suppress micropowder It is attached to the glass melting material producing device of the inwall etc. of furnace wall or flue and uses the glass of this glass melting material producing device The manufacture method of glass article.
Solve the technical scheme that technical problem is used
The present inventor etc. have investigated the generating unit of micropowder to solve above-mentioned problem, it was found that at carrying pelletize body Operation in the ratio of micropowder dramatically increase.Additionally, the present inventor etc. are based on this understanding, find by the work at carrying pelletize body The grading plant removing micropowder is set in sequence, and then utilizes composition shown below, it is possible to resolve above-mentioned problem.
That is, a kind of form of the glass melting material producing device of the present invention includes: receive using frit as forming material The storage device of the pelletize body of material;Described pelletize body after being accommodated in described storage device is classified as the first particle and has ratio The grading plant of the second particle of the mean diameter that the mean diameter of this first particle is little;By described first particle height in stove Glass melting furnace melted in wet atmosphere.
Its composition can also include discharger, after this discharger will be accommodated in described storage device and use described classification Described pelletize body before device classification is discharged with constant basis.
Its composition can also include feedway, and this feedway will be accommodated in the described pelletize body before described storage device It is classified as the 3rd particle and there is the 4th particle of the mean diameter less than the mean diameter of the 3rd particle, by described 3rd Son supply is to described storage device.
Its constitute can be described grading plant be that to make the mean diameter of described first particle be more than 200 μm, 2000 μm Hereinafter, and make the device that mean diameter is below more than 10 μm, 100 μm of described second particle.
Its constitute can be described grading plant be vibrosieve.
Its constitute can be described vibrosieve be that the gradable quality of the described pelletize body of gradable time per unit is Supply is to more than 1.2 times of supply quality of time per unit of described pelletize body of described grading plant, the dress of less than 2.5 times Put.
Its composition can be that described vibrosieve includes that the mesh of described screen cloth is for the screen cloth by described pelletize body classification More than 2 times of the hierarchical objectives particle diameter of described second particle, and less than the mean diameter of described first particle.
Its constitute can be described grading plant be cyclone separator.
Its composition can also include manufacturing the prilling granulator of described pelletize body, and described second particle is carried to described pelletize Device.
A kind of form of the manufacture method of the glass article of the present invention includes: with described glass melting material producing device by institute State pelletize body be classified as described first particle and there is described the of the mean diameter less than the mean diameter of described first particle Two particles, are manufactured the operation of glass melting thing by described first particle;Described glass melting thing is configured to the operation of formed body; The operation of glass article is made in the annealing of described formed body.
A kind of form of the manufacture method of the glass article of the present invention includes: make using frit as forming material Plastochondria carries out quantitative operation;Described pelletize body is classified as the first particle and has less than the mean diameter of this first particle The operation of the second particle of mean diameter;With in glass melting furnace high-temperature atmosphere in stove by described first pellet melting system Make the operation of glass melting thing;Described glass melting thing is configured to the operation of formed body;The annealing of described formed body is made The operation of glass article.
This manufacture method can be the mean diameter of the first particle of described pelletize body be below more than 200 μm, 2000 μm, And the mean diameter of described second particle is below more than 10 μm, 100 μm.
This manufacture method can be that described classification operation is after described quantitative procedure.
This manufacture method also includes other classification operation outside can being in addition to described classification operation.
The effect of invention
By a kind of form of the present invention, it is possible to provide the glass of a kind of inwall etc. suppressing micropowder to be attached to furnace wall or flue Glass melts material producing device and uses the manufacture method of glass article of this glass melting material producing device.
Accompanying drawing explanation
Fig. 1 is the brief configuration figure of the glass melting material producing device representing the first embodiment.
Fig. 2 is the axonometric chart of the discharger representing the first embodiment.
Fig. 3 is the sectional view of the vibrosieve representing the first embodiment.
Fig. 4 is the flow chart of the manufacture method of the glass melting thing representing the first embodiment.
Fig. 5 is the figure that medelling represents the attachment of the micropowder in glass melting furnace.
Fig. 6 is the figure of another example of the discharger representing the first embodiment.
Fig. 7 is the figure of another example of the grading plant representing the first embodiment.
Fig. 8 is the brief configuration figure of the glass melting material producing device representing the second embodiment.
Fig. 9 is the brief configuration figure of the glass melting material producing device representing the 3rd embodiment.
Figure 10 is the brief configuration figure of the glass melting material producing device representing the 4th embodiment.
Figure 11 is the flow chart of the embodiment of the manufacture method representing glass article.
Figure 12 is to represent in embodiment 1 as the brief configuration figure of glass melting material producing device measuring object.
Figure 13 is the figure of the result representing embodiment 1.
Figure 14 is the figure of the result representing embodiment 2.
Figure 15 is the figure of the result representing embodiment 3.
Detailed description of the invention
In this specification, " frit " refers to the composition as frit, and " frit compositions " refers to comprise The compositions of the multiple composition as frit.As frit, oxide or composite oxides can be enumerated, heat can be passed through It is decomposed into the compound of oxide.As enumerating hydroxide, carbonic acid by being thermally decomposed into the compound of sub-oxide Salt, nitrate, sulfate, halogenide etc..
In this specification, " pelletize body " refers to the product of frit compositions pelletize, substantially 1 pelletize Body comprises all the components needed for glass manufacture.Pelletize body refers to: if such as 1 pelletize body being added heat fusing to make its glass Change, then can obtain the glass with the glass composition to be obtained.
In this specification, if no special instructions, " mean diameter " refers to 50% diameter (D50) of running summary of the points scored.D50 is In the case of below 1mm, using 50% diameter of the running summary of the points scored of volume reference that measures with laser diffractometry as D50.D50 surpasses In the case of crossing 1mm, the 50% of the mass accumulation method (sieve method) being tried to achieve mean diameter by screen sizing measured is straight Footpath is as D50.As Particle Size Determination Method based on laser diffractometry, use the method that JIS Z8825-1 (calendar year 2001) records.
In this specification, " upstream side " and " downstream " refers to making relative to carrying in glass melting material producing device For the flowing of plastochondria.I.e., such as " upstream side " of each device described in this specification refers to that the supply in each device is made The side of plastochondria, " downstream " of each device refers to the side discharging pelletize body in each device.
In the case of in this specification, being individually denoted as " pressure ", refer to the absolute pressure on the basis of absolute vacuum, be denoted as In the case of " gauge pressure ", refer to the relative pressure on the basis of atmospheric pressure.
Glass melting material producing device and the manufacturer of glass article to embodiments of the present invention with reference to the accompanying drawings Method illustrates.
It addition, the scope of the present invention is not limited to implementation below, can be in the range of the technological thought of the present invention Arbitrarily change.Additionally, in the following drawings, for the ease of understanding each composition, sometimes make the ratio in actual structure and each structure The difference such as chi and numerical value.
<the first embodiment>
(glass melting material producing device)
As it is shown in figure 1, the glass melting material producing device 100 of the first embodiment includes receiving device 110, discharger 150, the carrying of pelletize body pipe 154, vibrosieve 160, micropowder Handling device 170, coarse powder Handling device 174, glass melting furnace 180.
It addition, vibrosieve 160 is equivalent to the grading plant in claims.
[storage device]
Storage device 110 is to receive the pelletize body (not shown) as frit to discharger 150 supply Device.Storage device 110 includes saving hopper 140.
Such as in the case of using alkali-free glass, pelletize body is by by silica sand, aluminium oxide (Al2O3), boric acid (H3BO3), hydrogen-oxygen Change magnesium (Mg (OH)2), calcium carbonate (CaCO3), strontium carbonate (SrCO3), brium carbonate (BaCO3) etc. frit according to target glass The glass composition that the condition that glass composition matches is deployed into is constituted.The first particle in the size of pelletize body e.g. pelletize body Mean diameter be below more than 200 μm, 2000 μm.
Pelletize body is carried to save hopper 140 by conveyer etc..
Savings hopper 140 includes hopper portion 141 and valve 142.Hopper portion 141 is that savings are carried to save hopper 140 The accumulator tank of pelletize body.Hopper portion 141 is connected with the weigh-hatching plant 151 of following discharger 150 by valve 142.First is real Executing in mode, weigh-hatching plant 151 is arranged at the vertical lower side (on the downside of diagram) of savings hopper 140.By opening valve 142, save the pelletize body in hopper portion 141 and fall because of deadweight, be supplied to weigh-hatching plant 151, i.e. discharger 150.
The switch motion of valve 142 according to the quality of pelletize body saved in weigh-hatching plant 151 by not shown control portion It is controlled.That is, save the quality of pelletize body in weigh-hatching plant 151 more than setting in the case of, valve 142 is in closedown State.In contrast, saving in the case of the quality of the pelletize body of weigh-hatching plant 151 is less than setting, valve 142 is opened, Pelletize body in savings hopper 140 is supplied to weigh-hatching plant 151.If the quality of the pelletize body in weigh-hatching plant 151 reaches More than setting, then valve 142 is again switched off.
[discharger]
Discharger 150 is the dress discharged with constant basis by the pelletize body supplied from the savings hopper 140 of storage device 110 Put.In other words, discharger 150 be will be accommodated in storage device 110 after and with the pelletize body before vibrosieve 160 classification with constant The device that amount is discharged.
Discharger 150 includes that weigh-hatching plant 151, quantitatively discharge batcher the 152, first oxygen flow into pipe 153.
It addition, in this specification, " constant basis " might not represent constant amount closely, can allow a certain degree of mistake Difference.Such as can allow more than 0.9 times of aim parameter, the error of about less than 1.1 times.
As in figure 2 it is shown, weigh-hatching plant 151 is to save the pelletize body 111 supplied from savings hopper 140 in being arranged in advance The accumulator tank of its internal hopper portion 151a.Hopper portion 151a is included in and quantitatively discharges batcher 152 side, the i.e. first embodiment In the peristome 151b of vertical lower side (on the downside of diagram) opening.Save the pelletize body 111 in hopper portion 151a to pass through Peristome 151b is supplied to quantitatively discharge batcher 152.
Weigh-hatching plant 151 is provided with not shown force cell, it is thus possible to making in hopper portion 151a is saved in metering The quality of plastochondria 111.Force cell is connected with above-mentioned control portion, sends and saves the hopper portion 151a in weigh-hatching plant 151 The quality information of pelletize body 111.
Quantitatively discharging batcher 152 is the device discharged by the pelletize body 111 of constant basis.Quantitatively discharge batcher 152 Inside has swivel plate 155.
It is vertical that swivel plate 155 is arranged to thickness direction.On swivel plate 155, in position equidistant with center It is formed with the multiple through hole 155a running through swivel plate 155 in a thickness direction.
The peristome 151b of hopper portion 151a is positioned on the upside of the vertical of swivel plate 155.Peristome 151b be arranged to The central shaft AX of swivel plate 155 is distance away, and this distance is equivalent to from central shaft AX to the position forming through hole 155a Distance between putting.That is, peristome 151b is arranged as follows: if making swivel plate 155 rotate around central shaft AX, then exist Under vertical view, peristome 151b is the most overlapping with multiple through hole 155a.Thereby, if through hole 155a is bowing with peristome 151b Depending on lower overlap, then save the pelletize body 111 in hopper portion 151a and be filled the inside to through hole 155a.
First oxygen flows into pipe 153 and is disposed on the upside of the vertical of swivel plate 155, across the center of swivel plate 155 Axle AX is in the opposition side (on the right side of diagram) of peristome 151b and distance away with the central shaft AX of swivel plate 155, should Distance is equivalent to the distance from the central shaft AX to peristome 151b of swivel plate 155.That is, the first oxygen flows into pipe 153 and opens Oral area 151b is arranged the most as follows: if making swivel plate 155 rotate around central shaft AX, then under overlooking, the first oxygen Flow into pipe 153 the most overlapping with multiple through hole 155a.First oxygen flows into aerobic AR1 in pipe 153 and flows into.
In first embodiment, the influx of oxygen AR1 for example, 2Nm3/h。
The vertical lower side quantitatively discharging batcher 152 is provided with pelletize body carrying pipe 154.Pelletize body carrying pipe 154 are arranged at the position overlapping under overlooking with the first oxygen inflow pipe 153.If by the rotation of swivel plate 155, internal filling There are position and the location overlap of pelletize body carrying pipe 154 of the through hole 155a of pelletize body 111, then through hole 155a and pelletize body Carrying pipe 154 connects.Thereby, it is filled in pelletize body within through hole 155a 111 and falls to pelletize body carrying pipe because of deadweight The inside of 154.
Additionally, now the first oxygen inflow pipe 153 also connects with through hole 155a.Therefore, pipe 153 is flowed into from the first oxygen The oxygen AR1 flowed into flows in pelletize body carrying pipe 154 via through hole 155a.Thereby, making within through hole 155a it is filled in Plastochondria 111 is also by oxygen AR1 extrusion to pelletize body carrying pipe 154.
To sum up, the pelletize body 111 of constant basis is expelled to pelletize body carrying pipe 154 from discharger 150.First embodiment In, it is that ratio supplies the pelletize body 111 to glass melting furnace 180 from the quality settings of the pelletize body 111 of discharger 150 discharge The desired value of quality is big.Its reason is, by by vibrosieve 160 by pelletize body 111 classification, supply is to glass melting furnace 180 The quality of pelletize body 111 discharged from discharger 150 of the mass ratio of pelletize body 111 little.
In first embodiment, the quality settings of the pelletize body 111 such as discharged from discharger 150 is for supplying to glass More than 1.02 times of the aimed quality of the pelletize body 111 of melting furnace 180, less than 1.1 times.By so setting, easily make supply The quality of time per unit of pelletize body to glass melting furnace 180 reaches desired value.
Additionally, in the first embodiment, such as can also obtain the following micropowder 111b's of use vibrosieve 160 recovery in advance Average quality, is added this average quality with aimed quality, is the pelletize discharged from discharger 150 by the quality settings of gained The quality of body 111.Additionally, in the first embodiment, such as can also measure at any time in the operation process of discharger 150 and shake The yield of the micropowder 111b in dynamic sieve 160, is automatically set from discharger 150 row by sequential control according to this yield The quality of the pelletize body 111 gone out.
Quantitatively discharge batcher 152 and there is not shown motor.Under the effect of this motor, swivel plate 155 around Central shaft AX rotates.This motor according to the quality of the pelletize body 111 of the hopper portion 151a saved in weigh-hatching plant 151 by not scheming The control portion shown is controlled.Thereby, adjustable is expelled to the quality of the pelletize body 111 of pelletize body carrying pipe 154, makes constant basis Pelletize body 111 be expelled to pelletize body carrying pipe 154.
Can phase with the control portion being arranged at savings hopper 140 it addition, be arranged at the control portion quantitatively discharging batcher 152 Together can also be different.
[pelletize body carrying pipe]
Pelletize body carrying pipe 154 is as it is shown in figure 1, be and the pipe arrangement quantitatively discharging batcher 152 and vibrosieve 160 is connected. From quantitatively discharging pelletize body carrying in pelletize body carrying pipe 154 that batcher 152 is discharged, it is supplied to vibrosieve 160.Pelletize If body falls because of deadweight, then under the effect flowing into the oxygen AR1 that pipe 153 flows into from the first oxygen, carry pipe 154 at pelletize body Inside it is handled upside down.
In first embodiment, pelletize body carrying pressure within pipe 154 is set as bigger than atmospheric pressure.In other words, pelletize Body carrying gauge pressure within pipe 154 is malleation.That is, pelletize body pelletize body carrying pipe 154 in by force feed.First embodiment In, pelletize body carrying gauge pressure within pipe 154 is such as set as more than 1kPa, below 40kPa, be more preferably set as 3kPa with Upper, below 15kPa.By so setting, easily carrying pelletize body.
[vibrosieve]
Pelletize body is classified as the first particle and second by the particle diameter of the particle that vibrosieve 160 is comprised according to pelletize body Son, described pelletize body is the pelletize body from carrying pipe 154 supply of pelletize body, in other words, is making after being accommodated in storage device 110 Plastochondria.
First particle refers to be carried in the pelletize body after vibrosieve 160 classification the particle of glass melting furnace 180.This Outward, it is carried to following micropowder by micropowder Handling device 170 during the second particle refers to the pelletize body after vibrosieve 160 classification save The particle of container etc..
First particle mainly comprises coarse powder 111a.Second particle mainly comprises micropowder 111b.The mean diameter of the second particle Less than the mean diameter of the first particle.
Coarse powder 111a has for being supplied to glass melting furnace 180 as the formation material of manufactured glass melting thing Particle for the particle of preferred mean diameter.
Here, as being supplied to the pelletize body of glass melting material producing device 100, select to have for being supplied to glass The pelletize body of preferred mean diameter for the particle of glass melting furnace 180.Coarse powder 111a average accordingly, as the first particle Particle diameter is similar with the mean diameter of pelletize body.That is, in the first embodiment, the mean diameter of coarse powder 111a for example, 200 μm Above, below 2000 μm.
Micropowder 111b is that mean diameter is less than coarse powder 111a, it is easy to be floating in stove to be supplied to during glass melting furnace 180 Particle.
In first embodiment, as more than mean diameter for example, 10 μm of the micropowder 111b of the second particle, 100 μm with Under.
In the scope that the mean diameter of the second particle is less than the mean diameter of the first particle, the first particle can comprise Micropowder 111b, can comprise coarse powder 111a in the second particle.Additionally, the first particle can be only made up of coarse powder 111a, second Son can be only made up of micropowder 111b.
Although the mean diameter of the first particle also depends on the mean diameter of the particle being classified to the second particle, but with make The mean diameter of plastochondria is similar.Its reason is, the second particle mainly comprises micropowder 111b, the micropowder 111b's in pelletize body The volume ratio volume ratio relative to the coarse powder 111a in pelletize body is sufficiently small.
The mean diameter of the second particle determines according to setting, the most following hierarchical objectives particle diameter of vibrosieve 160.First is real Executing in mode, the mean diameter of the first particle that vibrosieve 160 is such as set so that in pelletize body is more than 200 μm, 2000 μ Below m, and the mean diameter of the second particle is below more than 10 μm, 100 μm.
Here, vibrosieve 160 be set so that the mean diameter of the second particle that classification goes out less than in the case of 10 μm, from By micropowder 111b classification the weak effect removed in pelletize body.Additionally, suppression micropowder is attached to the following interior of glass melting furnace 180 The weak effect of the drain passageway 186a of wall 184a or flue 186.
Additionally, vibrosieve 160 be set so that the mean diameter of the second particle that classification goes out more than in the case of 100 μm, The quality of the second particle gone out from pelletize body classification by vibrosieve 160 increases.Therefore, supply is to the first of glass melting furnace 180 The quality of particle reduces, and the utilization rate of raw materials of glass article reduces.
Therefore, it is below more than 10 μm, 100 μm by the mean diameter that vibrosieve 160 is set so that the second particle, Can effectively suppress the attachment of micropowder in the stove of glass melting furnace 180, and suppress the utilization rate of raw materials of glass article simultaneously Reduction.
In following description, vibrosieve 160 classification the first particle gone out is referred to as coarse powder 111a, by the most micro-for the second particle Powder 111b.
As it is shown on figure 3, vibrosieve 160 includes fractionated container 161, coarse powder discharge pipe 162, micropowder discharge pipe 163, screen cloth 164, vibration section 165.
Fractionated container 161 is the container that the pelletize body 111 carried by pelletize body carrying pipe 154 flows into.Fractionated container 161 Inner space is divided into upper space 161a and lower space 161b by screen cloth 164.Pelletize body 111 carries pipe 154 from pelletize body Flow into the upper space 161a of fractionated container 161.
Screen cloth 164 can be selected according to the desired value of the particle diameter of classification pelletize body 111.It is to say, the gap of screen cloth 164 The width of 164a, i.e. mesh W1 are set as that big and than coarse powder 111a the mean diameter of the hierarchical objectives particle diameter than micropowder 111b is little.
In this specification, " hierarchical objectives particle diameter " refers to the maximum of the particle diameter of the particle of micropowder 111b to be classified as.
It addition, hierarchical objectives particle diameter is intended only as the value of hierarchical objectives.The micropowder 111b that classification goes out sometimes comprises and has ratio The particle of the particle diameter that hierarchical objectives particle diameter is big.
In first embodiment, more than 2 times of the hierarchical objectives particle diameter that mesh W1 is micropowder 111b of screen cloth 164, and ratio The mean diameter of coarse powder 111a is little.By so setting, the time per unit of coarse powder 111a that can make to discharge from vibrosieve 160 Steady quality.
In first embodiment, hierarchical objectives particle diameter for example, 50 μm of micropowder 111b.That is, target be by have 50 μm with Under the particle of particle diameter be classified as micropowder 111b.In first embodiment, mesh W1 for example, 150 μm of screen cloth 164.By such as This sets, and the output easily making coarse powder 111a is constant.
It addition, as it has been described above, hierarchical objectives particle diameter is target.Therefore, even if in the situation of setting proceeded as above Under, micropowder 111b the most also comprises the particle diameter particle more than 50 μm.
Vibration section 165 is the driving source for making vibrosieve 160 vibrate.The concrete composition of vibration section 165 for example, includes 2 Individual weight and make the composition of motor that these 2 weights rotate.By changing the phase place of the rotation of each weight of vibration section 165 Angle, can control the vibrational state of vibrosieve 160.In first embodiment, for example, 40 ° of the phase angle of vibrosieve 160.
Utilize the vibration that produced by vibration section 165 and screen cloth 164, to the upper space 161a flowing into fractionated container 161 Pelletize body 111 carries out classification.That is, micropowder 111b falls to lower space 161b by the gap 164a of screen cloth 164, from bottom The micropowder discharge pipe 163 that space 161b connects is discharged.Coarse powder 111a cannot pass through gap 164a, therefore from upper space 161a The coarse powder discharge pipe 162 connected is discharged.
Flow into the oxygen AR1 of upper space 161a about carrying pipe 154 from pelletize body together with pelletize body 111, arrange with micropowder The micropowder Handling device 170 going out pipe 163 connection is blocked by following first valve 172a.Therefore, oxygen AR1 is from pelletize body carrying pipe 154 flow to the coarse powder discharge pipe 162 being connected with upper space 161a.Thereby, the coarse powder 111a discharged from coarse powder discharge pipe 162 It is carried to coarse powder Handling device 174.Pressure within vibrosieve 160 is in the same manner as the pressure within pelletize body carrying pipe 154 It is set as bigger than atmospheric pressure.That is, the gauge pressure within vibrosieve 160 is set as malleation.
In first embodiment, the gradable quality settings of the time per unit of vibrosieve 160 is to carry than from pelletize body The supply quality of the pelletize body 111 of the time per unit of pipe 154 supply is big.Gradable quality refers to that vibrosieve 160 is when unit The biggest quality of interior gradable pelletize body 111.In first embodiment, gradable quality is such as set as pelletize body 111 More than 1.2 times of supply quality, less than 2.5 times.
[micropowder Handling device]
The micropowder 111b gone out by vibrosieve 160 classification is carried to not shown micropowder savings by micropowder Handling device 170 to be held Device etc..
As it is shown in figure 1, the midway of the carrying pipe 171 of micropowder Handling device 170 is provided with force-displacement portion 172.Carrying pipe Micropowder discharge pipe 163 and the micropowder of vibrosieve 160 are saved container etc. and are connected by 171.
Force-displacement portion 172 includes the first valve 172a and the second valve 172b.By by the first valve 172a and second Valve 172b alternately turns on closedown, and the force-displacement portion 172 in available carrying pipe 171 is by vibrosieve 160 side (in diagram Side) internal gauge pressure is maintained at gauge pressure vibrosieve 160 within almost, and is carried to be in air by micropowder 111b simultaneously Micropowder savings container etc. under pressure ring border.
Can will save the micropowder 111b formation Reuse of materials as pelletize body saving container etc. in micropowder.Now, The utilization rate of raw materials of manufactured glass melting thing Gf can be improved.
[coarse powder Handling device]
Coarse powder Handling device 174 is the dress that the coarse powder 111a gone out by vibrosieve 160 classification is carried to glass melting furnace 180 Put.
Coarse powder Handling device 174 includes that connecting tube the 175, second oxygen flows into pipe 176, carrying pipeline 177.
Connecting tube 175 is connected with the coarse powder discharge pipe 162 of vibrosieve 160.Coarse powder discharge pipe 162 side in connecting tube 175 Opposition side end connect have carrying pipeline 177.The end of the opposition side of connecting tube 175 side of carrying pipeline 177 is with following The aerial fusing burner 182 of glass melting furnace 180 connects.
Connect near the end of the opposition side of coarse powder discharge pipe 162 side of connecting tube 175 and have the second oxygen to flow into pipe 176. Second oxygen flows into aerobic AR2 in pipe 176 and flows into.Flow into the second oxygen and flow into the oxygen AR2 of pipe 176 via connecting tube 175 inflow carrying In pipeline 177.
That is, in carrying pipeline 177, flowing into the oxygen AR1 of pipe 153 inflow from the first oxygen and flowing into pipe 176 from the second oxygen Under the effect of the oxygen AR2 flowed into, coarse powder 111a is carried to glass melting furnace 180.
Pressure within coarse powder Handling device 174 keeps in the same manner as the inside of pelletize body carrying pipe 154 and vibrosieve 160 For bigger than atmospheric pressure.That is, the gauge pressure within coarse powder Handling device 174 is malleation.
In first embodiment, by the quality of the coarse powder 111a (solid) in carrying pipeline 177 divided by oxygen AR1 and oxygen AR2 Value, i.e. solid-gas ratio for example, 4~about 10 obtained by the quality of (gas).The value of solid-gas ratio within the range in the case of, can Force feed coarse powder 111a while reducing the melted impact caused on the coarse powder 111a in glass melting furnace 180.But, another Aspect, even if the value of solid-gas ratio is within the range, when carrying carrying in pipeline 177, coarse powder 111a the most also can be trapped in and remove In fortune pipeline 177.Therefore, connecting tube 175 and carrying pipeline 177 preferably in the way of being not provided with inflection point as far as possible by vibrosieve 160 and glass melting furnace 180 connect.
[glass melting furnace]
Glass melting furnace 180 is as it is shown in figure 5, include body of heater 181, aerial fusing burner 182, flue 186.
Body of heater 181 is the box of hollow.Body of heater 181 is such as made up of refractory materials such as refractory brick, can store the glass of high temperature Glass fused mass Gf.The bottom side (on the downside of diagram) of body of heater 181 is the storing section 185 of glass melting thing Gf.Body of heater 181 is configured to The glass melting thing Gf being reserving at storing section 185 as required is maintained at target temperature, such as 1400 DEG C left sides with molten condition Right.
The bottom of body of heater 181 is provided with not shown glass melting thing outlet.By glass melting thing outlet, can be by The glass melting thing Gf made is expelled to outside.The variola wooden partition portion 183 of body of heater 181 is provided with aerial fusing burner 182.
Aerial fusing burner 182 is arranged in the ceiling running through body of heater 181 on thickness direction (diagram above-below direction) Wall portion 183, and ejection side is storing section 185 side (on the downside of diagram).Although not shown, melt in the air to connect on burner 182 and remove Fortune fuel gas and the pipeline of combustion-supporting gas.As fuel gas, such as, use methane, propane, butane, LPG (liquefied petroleum gas (Liquefied Petroleum Gas)).As combustion-supporting gas, such as, use oxygen, air.
Aerial fusing burner 182 is by fuel gas, combustion-supporting gas, the coarse powder 111a flowed into from carrying pipeline 177 and oxygen It is internal that AR1, AR2 are ejected to body of heater 181, forms combustion flame Fc.By forming combustion flame by melting burner 182 in the air Fc, can form high-temperature atmosphere.This high-temperature atmosphere is formed by the high-temperature portion near combustion flame Fc and combustion flame Fc.
Depicted herein for forming the combustion flame (flame) situation as high-temperature atmosphere, but as other method, it is possible to example Lift and form the situation of heating region or use combustion flame and the situation of heating region simultaneously.From by pelletize body From the perspective of melting efficiently, more preferably form the situation of heating region.
Under the effect of above-mentioned high-temperature atmosphere, the coarse powder 111a being ejected in stove is melted, become glass melting thing Gf and It is reserving at storing section 185.
Flue 186 is disposed on more leaning on the upside of vertical (on the upside of diagram) than the glass melting face 185a of storing section 185 The air vent of side of sidewall portion 184 of body of heater 181.The drain passageway 186a being internally formed exhaust gas of flue 186.Discharge logical Road 186a connects with the through hole 184b of the side of sidewall portion 184 being formed at body of heater 181.
(manufacture method of glass melting thing)
Then, the manufacture method of the glass melting thing using above-mentioned glass melting material producing device 100 is illustrated.
As shown in Figure 4, the manufacture method of the glass melting thing of the first embodiment includes pelletize body storage operation S11, makes Plastochondria discharge operation S12, pelletize body classification operation S13, coarse powder melt operation S14.
Pelletize body storage operation S11 is the operation receiving pelletize body with storage device 110.The pelletize body of storage is via savings Hopper 140 is supplied to discharger 150.
It is the operation discharged by pelletize body with discharger 150 that pelletize body discharges operation S12.
Discharge operation S12 by pelletize body, with discharger 150, the pelletize body of constant basis is expelled to the carrying of pelletize body and manages 154.The pelletize body being expelled to pelletize body carrying pipe 154 is supplied to vibrosieve 160.
Pelletize body classification operation S13 be with vibrosieve 160 pelletize body is classified as the first particle coarse powder 111a and Operation as the micropowder 111b of the second particle.
By pelletize body classification operation S13, pelletize body is classified to coarse powder 111a and micropowder 111b.Coarse powder 111a is via slightly Powder Handling device 174 is carried to glass melting furnace 180.Micropowder 111b is carried to micropowder storage via micropowder Handling device 170 Store container etc..
It is the melted work of coarse powder 111a glass melting furnace 180 that will be gone out by vibrosieve 160 classification that coarse powder melts operation S14 Sequence.
By the aerial fusing burner 182 of glass melting furnace 180, at the high-temperature atmosphere that is internally formed of body of heater 181, utilize The coarse powder 111a sprayed from aerial fusing burner 182 is melted by this high-temperature atmosphere.
Melting operation S14 by coarse powder, coarse powder 111a is melted, and glass melting thing Gf is reserving at storing section 185.
Glass melting thing Gf is manufactured by above operation.
According to the first embodiment, after discharger 150, it is provided with vibrosieve 160.Therefore, supply is to glass melting The amount of the micropowder that the particle of stove 180 is comprised reduces, and can suppress the inwall of the side of sidewall portion 184 that micropowder is attached in body of heater 181 In the drain passageway 186a of 184a or flue 186.Below it is described in detail.
As it is shown in figure 5, supply is in the case of comprising micropowder 311b in the particle of glass melting furnace 180, micropowder 311b's Mean diameter is little, light weight, thus the most floating, sometimes cannot arrive glass melting face 185a.Under such circumstances, exist micro- Powder 311b is attached to as set thing M in the inwall 184a of the side of sidewall portion 184 or drain passageway 186a of flue 186, flue 186 quilt The problem of blocking.Additionally, the reaction product of the formation material and set thing M (micropowder 311b) that there is also side of sidewall portion 184 falls To the problem etc. that storing section 185 and glass melting thing Gf mix, the quality of glass melting thing Gf declines.
For these problems, according to the glass melting material producing device 100 of the first embodiment, pelletize body it is classified as slightly Powder 111a (the first particle) and micropowder 111b (the second particle), supplies coarse powder 111a to glass melting furnace 180.Thereby, can subtract Few quality supplying the micropowder to glass melting furnace 180.Therefore, according to the first embodiment, can obtain and micropowder can be suppressed to adhere to Glass melting thing manufacture dress in the inwall 184a of the side of sidewall portion 184 in the body of heater 181 or drain passageway 186a of flue 186 Put.
Additionally, according to the first embodiment, as it is shown in figure 1, pelletize body contain most micropowder discharger 150 it Afterwards, i.e., be provided with vibrosieve 160 in the downstream of discharger 150, therefore can be from the pelletize of supply to glass melting furnace 180 Micropowder is got rid of by body efficiently.Thereby, can reduce further and supply the quality of micropowder to glass melting furnace 180.Therefore, supply The degree of stability giving the quantity delivered of the pelletize body to glass melting furnace 180 is high, can preferably suppress micropowder to be attached in body of heater 181 In the inwall 184a of the side of sidewall portion 184 or drain passageway 186a of flue 186.
Pelletize body after discharger 150 is discharged, containing most micropowder 111b, this is the discovery that the present inventor's is new Find.The inventors discovered that, during pelletize body is carried to glass melting furnace 180, because of crumbling of a part of pelletize body Micropowder 111b is produced etc. reason.Also finding, after discharger 150, pelletize body contains most micropowder 111b.
Additionally, according to the first embodiment, be expelled to the pelletize of the time per unit of vibrosieve 160 from discharger 150 The quality settings of body is less than the gradable quality of the time per unit of vibrosieve 160.Therefore, can make to discharge from vibrosieve 160 The output stabilisation of time per unit of coarse powder 111a.Below it is described in detail.
If supply the pelletize body of more than the gradable quality of time per unit to vibrosieve 160, then pelletize body easily exists It is detained on the screen cloth 164 of vibrosieve 160.If pelletize body is detained on screen cloth 164, the most thus cause the table in vibrosieve 160 Pressure-volume easily becomes unstable, and the force feed of coarse powder 111a becomes unstable sometimes.As a result of which it is, the coarse powder discharged from vibrosieve 160 The quality of the time per unit of 111a becomes unstable sometimes.
For this situation, according to the first embodiment, by making supply to the pelletize of the time per unit of vibrosieve 160 The supply quality of body, less than the gradable quality of the time per unit of vibrosieve 160, can suppress pelletize body stagnant on screen cloth 164 Stay.Therefore, according to the first embodiment, the steady quality of the time per unit of the coarse powder 111a discharged from vibrosieve 160 can be made Change.Thereby, vibrosieve 160 can be configured after discharging the discharger 150 of pelletize body of constant basis.I.e., i.e. use vibration Sieve 160 is by the pelletize body classification of quantification, it is possible to supply the pelletize body (coarse powder 111a) of constant basis to glass melting furnace 180.
Additionally, according to the first embodiment, the mesh W1 of screen cloth 164 is set as the 2 of the hierarchical objectives particle diameter of micropowder 111b More than Bei.Therefore, pelletize body can be suppressed to be blocked in the gap 164a of screen cloth 164, in more detail, can suppress by gap 164a Micropowder 111b be blocked in the gap 164a of screen cloth 164.Thereby, according to the first embodiment, pelletize body can be suppressed to be blocked in sieve The gap 164a of net 164 and be trapped on screen cloth 164, as a result of which it is, the coarse powder 111a's that can make to discharge from vibrosieve 160 is every single The output stabilisation of bit time.
Additionally, according to the first embodiment, because the pressure from pelletize body carrying pipe 154 to micropowder Handling device 170 sets It is set to the pressure higher than atmospheric pressure, so pelletize body is carried to glass melting furnace 180 by force feed.Therefore, real according to first Execute mode, can stably carry pelletize body.
Additionally, according to the first embodiment, because oxygen AR1 flows into pelletize body carrying pipe 154, so can be more stably from row Go out device 150 and supply the pelletize body of constant basis to vibrosieve 160.
Additionally, according to the first embodiment, because using vibrosieve 160 as the grading plant by pelletize body classification, institute With such as without as air classifier from outside suction airflow, the easiest.
Additionally, according to the first embodiment, because micropowder Handling device 170 is provided with force-displacement portion 172, so can Micropowder 111b is carried to the decline of micropowder savings container isochronous vibration sieve pressure within 160 by suppression.
It addition, the first embodiment can also use following composition.
In described above, use is used to include the discharger 150 quantitatively discharging batcher 152 structure as discharger Becoming, this is quantitatively discharged batcher 152 and has swivel plate 155, but is not limited to this.In first embodiment, such as, can also adopt With using the composition as discharger of the discharger 250 including feeding screw 252 shown in Fig. 6.
Discharger 250 includes weigh-hatching plant 151 and feeding screw 252 as shown in Figure 6.
Feeding screw 252 includes drive division 253 and screw rod 254.
Drive division 253 applies the rotary driving force around axle to the rotating shaft 255 of screw rod 254.If rotating shaft 255 rotates, then set The screw rod blade 256 being placed in rotating shaft 255 rotates, and the pelletize body being fed in feeding screw 252 is carried in such as figure Right side.Drive division 253 is controlled by not shown control portion, comes according to the quality of the pelletize body of accumulation in weigh-hatching plant 151 Control rotating speed.Thereby, the quality quantification of the time per unit of the pelletize body of pelletize body carrying pipe 154 it is expelled to.
Additionally, in described above, use the composition using vibrosieve 160 as grading plant, but be not limited to this.First In embodiment, such as, can also use the composition using the cyclone separator 260 shown in Fig. 7 as grading plant.
Cyclone separator 260 is as it is shown in fig. 7, comprises main part 261, pelletize body flow into pipe 262, micropowder discharge pipe 263, thick Powder discharge pipe 264, revolving valve 265.
Main part 261 is made up of cylindric container.Flow if the oxygen AR1 comprising pelletize body flows into pipe 262 from pelletize body Enter main part 261, then the oxygen AR1 comprising pelletize body forms whirlpool in the internal flow of main part 261.Then, pelletize body is wrapped The coarse powder 111a that the mean diameter that contains is big falls because of deadweight, is discharged to the vertical lower side (diagram with main part 261 Downside) end connect coarse powder discharge pipe 264.The coarse powder 111a being expelled to coarse powder discharge pipe 264 is removed via revolving valve 265 It is transported to coarse powder Handling device 174.
On the other hand, the little micropowder 111b of pelletize body is comprised mean diameter together with oxygen AR1 in main part 261 on Rise, discharge from the micropowder discharge pipe 263 of the vertical upper side (on the upside of diagram) being arranged at main part 261.Thereby, can will make Plastochondria is classified as coarse powder 111a and micropowder 111b.The micropowder 111b discharged such as can trap with bag filter.
Additionally, in the first embodiment, be not limited to vibrosieve 160 and cyclone separator 260 as grading plant, can be by Pelletize body is classified as in the range of coarse powder 111a and micropowder 111b, and its composition can use any grading plant.
Additionally, in described above, use the composition only arranging 1 grading plant (vibrosieve 160), but be not limited to this. In first embodiment, it would however also be possible to employ there is the composition of multiple grading plant.At this time it is also possible at such as discharger 150 With any part etc. between storage device 110 or before storage device 110 arranges 1 or the grading plant of more than 2.This Time, the grading plant of setting can all have identical composition, it is possible to have different compositions.
Additionally, in described above, use the composition making oxygen AR1, AR2 flow into for the pelletize body after carrying quantitatively, but It is not limited to this.In first embodiment, such as in the scope that can be formed combustion flame Fc by aerial fusing burner 182 In, pelletize body can also be carried by the inflow of the gas beyond oxygen.In first embodiment, such as, can also pass through air Etc oxygen and the inflow of mixed gas of nitrogen etc. carry pelletize body.Additionally, use cyclone separator 260 as grading plant In the case of, in order to improve classification efficiency, need a certain amount of above gas flow, the most economically from the point of view of, the most preferably Make to flow into pipe 176 from the air of aerator etc. from the first oxygen inflow pipe 153 and the second oxygen to flow into.
Additionally, in described above, quantitatively after the method for carrying of pelletize body be to use oxygen AR1, the force feed of oxygen AR2 gas, But it is not limited to this.In first embodiment, can carry in the range of pelletize body, can be any method for carrying.
Additionally, in described above, use glass melting furnace 180 to have the flue 186 composition as air vent, but do not limit In this.In first embodiment, in the range of the aerofluxus that can carry out in body of heater 181, glass melting furnace 180 can have any Constitute as air vent.
<the second embodiment>
Second embodiment and the first embodiment are compared, different on this point of being provided with prilling granulator 210.
It addition, for the structure as the first embodiment, labelling same symbol the most in the accompanying drawings, omits explanation.
As shown in Figure 8, the glass melting material producing device 200 of the second embodiment includes prilling granulator 210, storage device 110, discharger 150, pelletize body carrying pipe 154, vibrosieve 160, micropowder Handling device 170, coarse powder Handling device 174, glass Glass melting furnace 180.
In second embodiment, the carrying pipe 171 of micropowder Handling device 170 is connected with micropowder savings container 173.
[prilling granulator]
Prilling granulator 210 includes comminutor 212, drying machine 213.
In second embodiment, comminutor 212 such as by frit compositions and water being mixed and can make it solidify Manufacture pelletize body.
Drying machine 213 makes the pelletize soma manufactured by comminutor 212 dry, removes the moisture contained by pelletize body.As being dried Machine 213, is not particularly limited in can making the dry scope of pelletize soma.
In second embodiment, as shown by the arrows in fig. 8, can use and will save in the micropowder of micropowder savings container 173 Supply the composition to comminutor 212.That is, according to the second embodiment, by micropowder is supplied to comminutor 212, can improve former Stock utilization.
It addition, in the second embodiment, prilling granulator 210 is not limited to the composition of described above, pelletize body can manufactured In the range of, can be any composition.
<the 3rd embodiment>
(glass melting material producing device)
3rd embodiment and the first embodiment are compared, and the upstream side at storage device 110 is provided with feedway 310 The most different.
It addition, for the structure as the first embodiment, labelling same symbol the most in the accompanying drawings, omits explanation.
As it is shown in figure 9, the glass melting material producing device 300 of the 3rd embodiment includes feedway 310, storage device 110, discharger 150, pelletize body carrying pipe 154, vibrosieve 160, micropowder Handling device 170, coarse powder Handling device 174, glass Glass melting furnace 180.
[feedway]
Pelletize body before feedway 310 will be accommodated in storage device 110 is classified as coarse powder (the 3rd particle) and has ratio The micropowder (the 4th particle) of the mean diameter that the mean diameter of coarse powder is little, by coarse powder supply to storage device 110.
Feedway 310 can by be accommodated in storage device 110 before pelletize body be classified as in the range of coarse powder and micropowder It is not particularly limited, can be the vibrosieve with the composition as vibrosieve 160.In addition it is also possible to be have with shown in Fig. 7 The cyclone separator of the same composition of cyclone separator 260.
The coarse powder gone out by feedway 310 classification and micropowder and the coarse powder 111a gone out by vibrosieve 160 classification and micropowder 111b can have same mean diameter, it is possible to have different mean diameters.
The coarse powder gone out by feedway 310 classification is supplied to receive device 110 via coarse powder Handling device 311.By supplying The micropowder gone out to device 310 classification is carried to not shown micropowder savings container etc. via micropowder Handling device 312.Can be by Save the micropowder formation Reuse of materials as pelletize body saving container etc. in micropowder.Now, manufactured glass can be improved The utilization rate of raw materials of fused mass Gf.
(manufacture method of glass melting thing)
The manufacture method using the glass melting thing of the glass melting material producing device 300 of the 3rd embodiment is real with first The manufacture method of the glass melting thing executing mode is compared, and has pelletize body classification operation S13 before pelletize body storage operation S11 Classification operation in addition is the most different.
According to the 3rd embodiment, because storage device 110 also will be accommodated in addition to carrying out classification by vibrosieve 160 Front pelletize body is classified as coarse powder and micropowder, so the quality supplying the micropowder to glass melting furnace 180 can be reduced further.Cause This, according to the 3rd embodiment, can obtain the inwall of the side of sidewall portion 184 that can preferably suppress micropowder to be attached in body of heater 181 Glass melting material producing device in the drain passageway 186a of 184a or flue 186.
<the 4th embodiment>
(glass melting material producing device)
4th embodiment and the first embodiment are compared, vibrosieve 160 to arrange position different.
It addition, for the structure as the first embodiment, labelling same symbol the most in the accompanying drawings, omits explanation.
As shown in Figure 10, in the glass melting material producing device 400 of the 4th embodiment, vibrosieve 160 is arranged at storage Between device 110 and discharger 150.
Pelletize body supplies to vibrosieve 160 from storage device 110, in more detail, supplies to vibration from savings hopper 140 Sieve 160.Supply is classified to coarse powder 111a and micropowder 111b to the pelletize body of vibrosieve 160.Coarse powder 111a is supplied to discharge Device 150, micropowder 111b is carried to not shown micropowder savings container etc..
(manufacture method of glass melting thing)
The manufacture method using the glass melting thing of the glass melting material producing device 400 of the 4th embodiment is real with first The manufacture method of the glass melting thing executing mode is compared, pelletize body classification operation S13 be arranged on pelletize body discharge operation S12 it The difference on this point of front.
According to the 4th embodiment, because vibrosieve 160 is arranged at ratio discharger 150 upstream side, so can carry The degree of stability of the high quantity delivered supplying the pelletize body to glass melting furnace 180 from discharger 150.
It addition, in the 4th embodiment, it is also possible to the upstream side at storage device 110 arranges explanation in the 3rd embodiment Feedway 310.By this composition, the micropowder that the pelletize body supplied to glass melting furnace 180 is comprised can be reduced further Quality.
In each embodiment of described above, the first embodiment, the second embodiment and the 4th embodiment and the 3rd Embodiment is compared, because being not provided with feedway 310, so manufacturing process's number of glass melting thing can be reduced, can cut down into This.Additionally, in the first embodiment and the 4th embodiment, because the transport distance of pelletize body is shorter than the 3rd embodiment, institute Micropowder is produced so that pelletize body can be suppressed to crumble.
Additionally, the first embodiment, the second embodiment and the 3rd embodiment and the 4th embodiment are compared, because The downstream of discharger 150 is provided with vibrosieve 160, it is possible to more effectively remove produced with discharger 150 Micropowder.
<embodiment of the manufacture method of glass article>
As shown in figure 11, the manufacture method of the glass article in embodiment includes glass melting thing manufacturing process S21, one-tenth Shape operation S22, annealing operation S23, cutting action S24.
First, glass melting thing manufacturing process S21 is to use the first embodiment, the 3rd embodiment or the 4th embodiment party The device that manufactures of the glass melting thing described in formula manufactures the operation of glass melting thing Gf.
Then, forming process S22 is that the glass melting thing Gf forming device of manufacture is configured to the shaping of target shape The operation of body.
Then, annealing operation S23 is the operation that this formed body is annealed into glass.
Then, the formed body after cutting action S24 is by annealing cuts into the operation of Len req.
Glass article G5 is manufactured by above operation.
Alternatively, it is also possible to arrange the grinding that the glass to well cutting is ground as required after cutting action S24 Operation.Additionally, after glass article includes the glass melting thing to annealing operation S23 midway or formed body or annealing operation S23 And the formed body after cutting action S24 carries out glass article obtained by the processing such as surface process or pad pasting.
Additionally, as the manufacture method of above-mentioned glass article, known method can be used.Manufacturer as glass article The example of method, as the method for the glass of main forming belt tabular, can enumerate float glass process, under draw draw under method, fusion method, discharge orifice method, Traction method again, roller forming process, roll-in method, pulling method etc., as other manufacture method, can enumerate press molding method, extrusion-blown modling Forming process, blow-moulding process (Japanese: Block ロ Block ロ forming process), casting etc..
[embodiment]
<embodiment 1>
In embodiment 1, respectively measure a little for the glass melting material producing device 500 shown in Figure 12, pelletize body is wrapped The ratio of the micropowder contained measures.The glass melting thing manufacture dress of glass melting material producing device 500 and the first embodiment Put 100 to compare, different on this point of being not provided with vibrosieve 160 with micropowder Handling device 170.
Being supplied to the measurement point A before glass melting furnace 180 to a measurement point D for pelletize body, carry out in pelletize body is micro- The measurement of the containing ratio of powder.Measuring each measurement point at measurement point A to measurement point D to carry out respectively 2 times, that obtains in pelletize body is micro- The meansigma methods of the containing ratio of powder and standard deviation.Here, the containing ratio of micropowder is by pelletize system Cheng Wei that particle diameter is below 50 μm The micropowder of each measurement point during powder is relative to quality % of the gross mass of pelletize body.The mean diameter of the pelletize body before carrying is 500μm。
Measurement point A is the top of the flexible container bag stored with not shown pelletize body.Measurement point B is stored with not shown The bottom of flexible container bag of pelletize body.Measurement point C is the inside of weigh-hatching plant 151.Measurement point D is pelletize body carrying pipe The inside of 154.
Measurement result is shown in Figure 13.In Figure 13, the longitudinal axis be measurement point A at the pelletize body with standardizing average values in micro- The containing ratio of powder.In Figure 13, the point of drawing represents meansigma methods, and the line extended up and down from the point of drawing represents standard deviation.
By Figure 13 it has been confirmed that the containing ratio of micropowder in pelletize body is substantially carried to glass melting thing along with pelletize body Manufacture device 500 and increase.Can also confirm that, at measurement point D, the containing ratio of the micropowder in pelletize body is maximum.I.e., it is possible to really Recognize from quantitatively discharging the pelletize body after batcher 152 (discharger 150) is discharged containing most micropowders.
<embodiment 2>
In embodiment 2, make the glass melting material producing device 100 of the first embodiment work, to from vibrosieve supply to The quality of the pelletize body of glass melting furnace measures.
For the aimed quality of pelletize body of time per unit supply to glass melting furnace is respectively set as 190kg/h, The situation of 285kg/h measures.
The quality of the pelletize body discharged from discharger, the supply quality i.e. supplying the pelletize body to vibrosieve are as follows Amount: the amount of the micropowder that measurement classification in advance is reclaimed, adds to the aimed quality of the pelletize body of glass melting furnace in supply Measure obtained by this amount upper.
In vibrosieve, the hierarchical objectives particle diameter of micropowder is 50 μm.The screen cloth of vibrosieve is 100 mesh, and mesh is 150 μm.Shake The phase angle of dynamic sieve is 40 °.The gradable quality of vibrosieve is 380kg/h.
From discharger, the gauge pressure to the inside of coarse powder Handling device is set as 4kPa.The oxygen flowed into from the first oxygen inflow entrance For 2Nm3/ h, the oxygen flowed into from the second oxygen inflow entrance is 13Nm3/h.The mean diameter of the pelletize body before carrying now is 500 μ M, vibrosieve the mean diameter of the micropowder reclaimed is 25 μm.
Measuring the quality supplying the pelletize body to glass melting furnace in the above conditions, result is shown in Figure 14.In Figure 14, vertical Axle represents the supply quality (kg/h) supplying the pelletize body to glass melting furnace, and transverse axis represents the fortune of glass melting material producing device Turn the time (minute).
By Figure 14 it has been confirmed that reached the supply quality of constant under the conditions of each desired value.Additionally, desired value is Average supply quality in the case of 190kg/h is 190.6kg/h, and desired value is averagely to supply matter in the case of 285kg/h Amount is 284.8kg/h.Thus it has been confirmed that the supply quality of approximate target value can be realized.
To sum up, even if can confirm that configuration vibrosieve after discharger, being also not result in cannot making constant basis Plastochondria supplies to glass melting furnace.
<embodiment 3>
In embodiment 3, use the glass melting material producing device in embodiment 2, with JIS Z8808 (2013) as base Standard, attracts the exhaust gas from flue, the amount that measurement is trapped by filter paper through filter paper, obtains supply making to glass melting furnace The containing ratio of the micropowder that plastochondria is comprised.The mean diameter of the pelletize body before carrying now is 500 μm.As comparative example, make With only different on this point of being not provided with vibrosieve glass melting material producing device, as described above with JIS The containing ratio of micropowder is measured on the basis of Z8808 (2013).Measurement carries out 2 times at moment α and moment β.
Result is shown in Figure 15.In Figure 15, the longitudinal axis represents the containing ratio supplying to the pelletize body in stove the micropowder comprised (%).By Figure 15 it has been confirmed that no matter at moment α or at moment β, in the case of there is no vibrosieve, i.e. in comparative example, micro- The containing ratio of powder is about more than 1.4%, less than 1.5%, in contrast, in the case of having vibrosieve, i.e. the reality of the present invention Executing in example, the containing ratio of micropowder is about more than 0.4%, less than 0.5%.Thus it has been confirmed that by the present invention, confession can be reduced Give the micropowder to glass melting furnace.
<embodiment 4>
In embodiment 4, micro-for make in the flue when glass melting material producing device in embodiment 2 works long hours The attachment state of powder is observed.As comparative example, only different on this point of being not provided with vibrosieve glass is used to melt Melt material producing device, carry out same observation.
As a result of which it is, be not provided with in the glass melting material producing device of the comparative example of vibrosieve, flue is about a few hours The attachment of time endogenous cause of ill micropowder and blocked.In contrast, as the glass melting material producing device of embodiments of the invention In, even if flue is the most blocked in the case of working more than 3 months.
Thus it has been confirmed that by the present invention, can obtain and micropowder can be suppressed to be attached to the glass melting thing system within flue Manufacturing apparatus.
Probability is utilized in industry
Pass through the present invention, it is possible to provide micropowder can be suppressed to be attached to the glass melting material producing device of inwall etc. of flue, In the manufacture method of glass article useful.
The description of Japanese patent application 2013-257955 that 2013 incorporated herein Decembers are filed an application on the 13rd, power The full content of profit claim, accompanying drawing and summary is as the announcement of the description of the present invention.
The explanation of symbol
100,200,300,400,500 ... glass melting material producing device, 110 ... storage device, 111 ... pelletize body, 111a ... coarse powder (the first particle), 111b ... micropowder (the second particle), 150,250 ... discharger, 160 ... vibrosieve (classification Device), 164 ... screen cloth, 180 ... glass melting furnace, 210 ... prilling granulator, 260 ... cyclone separator, 310 ... feedway, G5 ... glass article, Gf ... glass melting thing, W1 ... mesh.

Claims (14)

1. a glass melting material producing device, comprising:
Receive the storage device using frit as the pelletize body forming material;
Described pelletize body after being accommodated in described storage device be classified as the first particle and have than this first particle average The grading plant of the second particle of the mean diameter that particle diameter is little;
By glass melting furnace melted in described first particle high-temperature atmosphere in stove.
2. glass melting material producing device as claimed in claim 1, it also includes discharger, and this discharger will be accommodated in Discharge with constant basis after described storage device and with the described pelletize body before described grading plant classification.
3. glass melting material producing device as claimed in claim 1 or 2, it also includes feedway, and this feedway will be received It is contained in the described pelletize body before described storage device be classified as the 3rd particle and have less than the mean diameter of the 3rd particle 4th particle of mean diameter, by described 3rd particle supply to described storage device.
4. the glass melting material producing device as according to any one of claims 1 to 3, wherein, described grading plant is to make institute The mean diameter stating the first particle is below more than 200 μm, 2000 μm, and to make the mean diameter of described second particle be 10 μm Above, the device below 100 μm.
5. the glass melting material producing device as according to any one of Claims 1 to 4, wherein, described grading plant is vibration Sieve.
6. glass melting material producing device as claimed in claim 5, wherein, described vibrosieve is gradable time per unit The gradable quality of described pelletize body be supply to the supply matter of the time per unit of the described pelletize body of described grading plant More than 1.2 times, the device of less than 2.5 times of amount.
7. the glass melting material producing device as described in claim 5 or 6, wherein, described vibrosieve includes for making described The screen cloth of plastochondria classification, the mesh of described screen cloth is more than 2 times of the hierarchical objectives particle diameter of described second particle, and ratio is described The mean diameter of the first particle is little.
8. the glass melting material producing device as according to any one of Claims 1 to 4, wherein, described grading plant is whirlwind Separator.
9. the glass melting material producing device as according to any one of claim 1~8, it also includes manufacturing described pelletize body Prilling granulator, described second particle is carried to described prilling granulator.
10. a manufacture method for glass article, comprising:
With the glass melting material producing device according to any one of claim 1~9, described pelletize body is classified as described first Particle and described second particle with the mean diameter less than the mean diameter of described first particle, by described first particle system Make the operation of glass melting thing;
Described glass melting thing is configured to the operation of formed body;
The operation of glass article is made in the annealing of described formed body.
The manufacture method of 11. 1 kinds of glass articles, comprising:
Quantitative operation is carried out as the pelletize body forming material to using frit;
Described pelletize body is classified as the first particle and there is the second of the mean diameter less than the mean diameter of this first particle The operation of particle;
By the operation that in glass melting furnace high-temperature atmosphere in stove, described first pellet melting is manufactured glass melting thing;
Described glass melting thing is configured to the operation of formed body;
The operation of glass article is made in the annealing of described formed body.
The manufacture method of 12. glass articles as described in claim 10 or 11, wherein, the mean diameter of described first particle is More than 200 μm, below 2000 μm, and the mean diameter of described second particle is below more than 10 μm, 100 μm.
The manufacture method of 13. glass articles as described in claim 11 or 12, wherein, described classification operation is in described quantitative work After sequence.
The manufacture method of 14. glass articles as according to any one of claim 11~13, wherein, except described classification operation Outside also include other classification operation.
CN201480066919.9A 2013-12-13 2014-12-09 Glass melt production device and glass article production method Pending CN105980318A (en)

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