CN107915394A - A kind of calcium and magnesium aluminium silicon building float glass process devitrified glass material path and its application method - Google Patents
A kind of calcium and magnesium aluminium silicon building float glass process devitrified glass material path and its application method Download PDFInfo
- Publication number
- CN107915394A CN107915394A CN201711232791.0A CN201711232791A CN107915394A CN 107915394 A CN107915394 A CN 107915394A CN 201711232791 A CN201711232791 A CN 201711232791A CN 107915394 A CN107915394 A CN 107915394A
- Authority
- CN
- China
- Prior art keywords
- glass
- temperature
- material path
- space
- heating
- 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.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B7/00—Distributors for the molten glass; Means for taking-off charges of molten glass; Producing the gob, e.g. controlling the gob shape, weight or delivery tact
- C03B7/02—Forehearths, i.e. feeder channels
- C03B7/06—Means for thermal conditioning or controlling the temperature of the glass
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B7/00—Distributors for the molten glass; Means for taking-off charges of molten glass; Producing the gob, e.g. controlling the gob shape, weight or delivery tact
- C03B7/02—Forehearths, i.e. feeder channels
- C03B7/06—Means for thermal conditioning or controlling the temperature of the glass
- C03B7/07—Electric means
-
- 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
Abstract
The present invention relates to a kind of calcium and magnesium aluminium silicon building float glass process devitrified glass material path and its application method,Belong to devitrified glass production technical field,The material path includes bottom of pond,The material path main body that pool wall and cover board are formed,Outside is provided with housing,There are running-out pit and stirring pool in inside,And it is provided with temperature of glass liquid measuring device and glass liquid heating device,There is heating space between cover board and housing and be provided with space temperature measuring device and space heating device,All temperature datas that measure are transmitted to DCS automatic control systems to control to adjust the temperature of relevant position,There is hot air circulation hole in pool wall,The structure of material path of the present invention can prevent and handle glass metal crystallization,Help to improve the clarification and homogenization quality of glass metal,The safety and stability of devitrified glass float process process can be ensured using the material path,Realize the accurate adjustment of temperature of glass liquid and quality,Finally the devitrified glass product defects after tin groove forming operates greatly reduces,Yield rate significantly improves.
Description
Technical field
The invention belongs to devitrified glass production technical field, and in particular to a kind of calcium and magnesium aluminium silicon builds float glass process devitrified glass material
Road and its application method.
Background technology
At present, devitrified glass production technology is mainly using rolling process and sintering process, national rolling process crystallite in 2014
Glass throughput is up to 14,000,000 square metres, and only 150,000 square metres of Sintering of Glass-Ceramics yield, in the market is also without more mature
Float glass process devitrified glass product.Leading way of the rolling process as in the market, there are many problems for it：Generally use fluoride conduct
Nucleating Agent, not only erosion of refractory, but also pollution environment；Product surface flatness is not high, and mechanical polishing amount is big, and yield rate is low；No
Slab and thin plate can be produced.Problem above restricts the development of rolling process devitrified glass, whole devitrified glass and micro crystal material row
Industry is more slow in production capacity and quality level development.
Calcium and magnesium aluminium silicon builds float glass process devitrified glass compared with traditional sintering process and rolling process devitrified glass, and calcium and magnesium aluminium silicon is built
Build float glass process devitrified glass have composition not fluoride, product surface flatness height, high yield rate, the thin of 3~18mm can be produced
The advantages that plate and slab, have extensive market application foreground, have a clear superiority in production capacity, quality and cost etc., but
It is its producting process difficulty bigger, faces the techniques such as fusion temperature height, refining quality, clarification homogenizing, float glass process shaping, subsequent annealing
Control requires high difficult point, especially calcium and magnesium aluminium silicon building float glass process devitrified glass easily to produce analysis because temperature reduces in part
Crystalline substance, seriously affects its steady production and product quality.In calcium and magnesium aluminium silicon building float glass process devitrified glass production technology, it is easiest to produce
The position of crystallization is the material path in connection melting furnaces and molten tin bath.Common plate glass, domestic glass material path are not in production at present
Meet devitrified glass manufacturing technique requirent, and existing devitrified glass material path is also unsatisfactory for float glass process devitrified glass production technology,
There are local crystallization, easy the defects of generating striped, the problems such as control of product quality is unstable, the knot that material path is connected with former
Structure does not apply to calcium and magnesium aluminium silicon building float glass process devitrified glass condition of molding yet, it is impossible to meets that calcium and magnesium aluminium silicon builds float glass process devitrified glass
Manufacturing requirements, it is necessary to designed on the basis of existing material path a kind of material path structure for meeting float glass process devitrified glass production requirement with
And process control method.
The content of the invention
The present invention overcomes shortcoming and defect existing in the prior art, there is provided one kind building float glass process devitrified glass material
Road, the peculiar structure and control system of the material path can improve melt flow and temperature difference distribution situation, improve glass metal quality,
The defects of eliminating striped, brush line, prevents the production accident such as fluctuate widely of local crystallization, quality from occurring, meets crystallite to provide
The glass metal of glass float forming requirement.
The present invention concrete technical scheme be：
A kind of calcium and magnesium aluminium silicon builds float glass process devitrified glass material path, which is connected to melting furnaces as the flow channel of glass metal
Between output terminal and molten tin bath input terminal, including pool wall, bottom of pond and cover board form for melt flow material path main body and its
Exterior insulation shell, key point are that the bottom of pond is arranged to front and rear connected horizontal channel and rising passway in inlet,
The afterbody of the material path is provided with flow gate, and flow gate is being provided with heating element with glass metal contact site, and material path exists
The lip tile for being connected with molten tin bath input terminal is provided with outside flow gate, the bottom of pond is provided with along melt flow direction
One group of trough for being provided with material drain system, is provided with heating space, is set in pool wall between the cover board and insulation shell
There is one group of hot air circulation hole, heating space is connected with hot air circulating system by hot air circulation hole；The material path is provided with temperature
Control system, including controller and coupled be arranged in material path main body one group of temperature of glass liquid measuring device and one
Group glass liquid heating device, the stirring system being arranged in material path main body, the one group of space temperature survey being arranged in heating space
Amount device and one group of space heating device being arranged in heating space, the controller are also followed with material drain system and hot wind
Loop system is connected, and is provided with heating element in stirring system with glass metal contact site, it is on stirring system and flow gate plus
Thermal element is connected with controller.
The temperature of glass liquid measuring device is respectively at the inlet of material path main body, trough and flow gate
Place, space temperature measuring device is identical with temperature of glass liquid measuring device quantity and installation site corresponds.
Length of the material path when glass metal day fusing amount is 50-100t is 4-6m, and the width of material path main body is
800-1000mm, is highly 400-500mm.
The upper surface of bottom of pond upper surface and lip tile at the material path body exit is generally aligned in the same plane and the plane is in
Rear end tilts down 3-5 ° of inclination angle.
The heating space is divided into the heating zone of one group of independence along melt flow direction, is all provided with each heating zone
It is equipped with space temperature measuring device and space heating device.
The application method of calcium and magnesium aluminium silicon building float glass process devitrified glass material path as described above, key point is the use
Method comprises the following steps：
A, glass metal inputs
The glass metal of fusing is flowed into material path main body from melting furnaces output terminal；
B, glass metal adjusts
Measured temperature is transmitted to controller by the temperature of glass liquid measuring device, and controller adjusts glass liquid heating dress
Put so that the temperature of glass liquid measuring device measured temperature at the inlet of material path main body and flow gate is respectively
1350-1400 DEG C and 1200-1250 DEG C, other temperature of glass liquid measuring device measured temperatures along melt flow direction successively under
Drop and between 1250-1350 DEG C；Measured temperature is transmitted to controller, controller tune by the space temperature measuring device
Section space heating device so that the two spaces temperature measuring equipment measured temperature at head and the tail both ends be respectively 1400-1450 DEG C and
1250-1300 DEG C, other space temperature measuring device measured temperatures decline and are located at 1300- successively along melt flow direction
Between 1400 DEG C；Waste heat in heating space is transferred to pool wall by the hot air circulating system by hot air circulation hole, or
Cooled down by the form blown a cold wind over to heating space；The flow gate controls glass metal output flow, and controller
Ensure that temperature of glass liquid is not less than 1250 DEG C herein by controlling the heating element in flow gate；
C, off-grade glass liquid is handled
When crystallization occurs in glass metal, controller starts material drain system discharge bottom glass, meanwhile, controller improves glass
The power of glass liquid heating unit and space heating device, control hot air circulating system are blown a cold wind over so that temperature of glass liquid is in crystallization
It is more than temperature so that flow gate front glass liquid temperature degree maintains to stablize, until crystallization disappears, controller control material drain system
Phased out blowing；When glass metal occur striped, brush line and it is of poor quality the defects of when, controller start stirring system be stirred
Operation, meanwhile, controller adjusts heating element on stirring system so that the temperature of glass liquid contacted does not decline, defect
After elimination, controller control stirring system tapers off work；
D, glass metal exports
Glass metal is flowed into molten tin bath after flow gate, lip tile.
The improved beneficial effect of the present invention is：Compared to existing material path, the material path in the present invention can be fully solved micro-
The crystallization such as the devitrification problem of material path, common pool wall, bottom of pond, stirring system and flow gate position leads in crystal glass production process
Material path glass metal crystallization can effectively be prevented by crossing hot air circulating system, material drain system, heating element；The structure that the present invention passes through material path
The layout of layout and temperature control element, can accurately measure the temperature of glass liquid of appointed part, accurate to adjust temperature of glass liquid distribution
Situation, helps to improve clarification, the homogenizing quality of glass metal；The present invention is set according to building float glass process devitrified glass manufacturing technique requirent
A whole set of control system is put, the adjustment of glass metal quality, control material path outlet temperature of glass liquid and viscosity can be realized, so as to be formed
For glass metal that is high-quality and meeting float glass process condition of molding subsequently into tin groove forming, the glass metal quality produced is good and more
The generation for the defects of stablizing, can effectively prevent local crystallization, and greatly reduce striped, brush line, greatly improves building float glass process crystallite
Glass product quality and yield rate.
Brief description of the drawings
Fig. 1 is material path and the attachment structure schematic diagram of melting furnaces and molten tin bath in the present invention.
Fig. 2 is material path internal structure schematic diagram in the present invention.
Fig. 3 is the profile of A-A in Fig. 2.
Fig. 4 is the profile of B-B in Fig. 2.
In attached drawing, 1 is melting furnaces, and 2 be material path, and 3 be molten tin bath, and 4 be controller, and 202 be bottom of pond, and 203 be pool wall, and 204 be lid
Plate, 205 be trough, and 207 be heating space, and 208 be hot air circulation hole, and 209 be agitating paddle, and 301 be safe flashboard, and 302 are
Flow gate, 303 be lip tile, and 401 be temperature of glass liquid measuring device, and 402 be glass liquid heating device, and 403 be space temperature
Measuring device, 404 be space heating device, and 414 be hot air circulating system.
Embodiment
The present invention relates to a kind of calcium and magnesium aluminium silicon to build float glass process devitrified glass material path, which leads to as the flowing of glass metal
Road is connected between 3 input terminal of 1 output terminal of melting furnaces and molten tin bath, including pool wall 203, bottom of pond 202 and cover board 204 form be used for glass
The material path main body and its insulation shell of outside that glass liquid stream is moved, the bottom of pond 202 are arranged to front and rear connected water in inlet
The setting of flat passage and rising passway, horizontal channel and rising passway avoids speed when glass metal initially enters material path main body
It is uncontrollable, when glass metal is raised to the top along rising passway, entered in a manner of overflow in material path main body, the stream of glass metal
Dynamic speed can accurately be controlled by flow, and the afterbody for avoiding the generation material path 2 of unqualified waste material is set
There is flow gate 302, flow gate 302 is being provided with heating element with glass metal contact site, and material path 2 is in flow gate 302
Outside is provided with the lip tile 303 for being connected with 3 input terminal of molten tin bath, and the bottom of pond 202 is provided with along melt flow direction
One group of trough 205 for being provided with material drain system, is provided with heating space 207, pond between the cover board 204 and insulation shell
One group of hot air circulation hole 208 is provided with wall 203, heating space 207 is connected with hot air circulating system by hot air circulation hole 208
414；The material path 2 is provided with temperature control system, including controller 4 and coupled be arranged in material path main body one
Group temperature of glass liquid measuring device 401 and one group of glass liquid heating device 402, the stirring system being arranged in material path main body, set
The one group of space put one in heating space 207 group of space temperature measuring device 403 and be arranged in heating space 207 adds
Thermal 404, the controller 4 are also connected with material drain system and hot air circulating system 414, are connect in stirring system with glass metal
Contact portion position is provided with heating element, and the heating element on stirring system and flow gate 302 is connected with controller 4.
Specific embodiment, as shown in Figures 1 to 4, material path 2 are provided with safe flashboard 301 in 202 terminal position of bottom of pond, its
Need to stop the urgent means used during production as there is accident, quickly stop melt flow, do not work under normal circumstances,
Flow gate 302 is located at safe 301 rear end of flashboard and is located at 303 upper surface terminal position of lip tile, in the middle part of material path main body and rear portion
It is respectively arranged with a trough 205, the material drain system in trough 205 is provided with platinum fistulae, and glass metal is in material drain system
Material path 2 bottom is discharged by platinum fistulae under operation, the material drain system in trough 205 includes the blowing of 205 bottom of trough
Hole, tapping hole bottom are provided with blowing bushing, and blowing bushing is heat resisting steel material, and brick used in tapping hole is one block of zircon corundum brick,
There is the circular hole of a diameter 30mm in bottom centre, and one block of heat resisting steel blowing bushing is close in brick bottom used in tapping hole, in blowing bushing
Core diameter 50mm circular holes are overlapped with tapping hole brick center, when not in use with the stopper of zirconium mullite material by the hole of blowing bushing into
Row closure, and is blowed cooling to blowing bushing, prevents glass metal from flowing out, and when use removes stopper, and heats blowing and leak
Plate, subsequent glass metal flow out at blowing bushing, reach blowing purpose, each 205 position of trough one glass of corresponding installation
Glass liquid temperature measuring equipment 401, therefore, is provided with four temperature of glass liquid measuring devices 401, temperature of glass liquid in material path main body
Measuring device 401 is temperature thermocouple, which is bag platinum thermocouple, be separately positioned at material path body inlet,
At two troughs 205 and at flow gate 302, glass liquid heating device 402 is ten set along melt flow direction
Group molybdenum electrode heating system, each molybdenum electrode heating system can adjust individually, and heating space 207 is along melt flow direction
It is divided into four independent heating zones, space temperature measuring device 403 and space heating device is both provided with each heating zone
404, each heating zone can independent measurement temperature and control temperature, space temperature measuring device 403 be temperature thermocouple, sky
Between heating unit 404 be globar heating system；
It is provided with poke hole in material path main body, stirring system is installed on above poke hole, and stirring system is that include can be upper and lower
Mobile blender, blender uses the whipped form of agitating paddle 209, and during work, agitating paddle extends downwardly entrance from poke hole
Glass metal, agitating paddle upper end connection motor control agitating paddle mixing speed and direction, blender with glass metal contact site
Position is provided with platinum heating element, and flow gate 302 is also being provided with platinum heating element, all platinum with glass metal contact site
Golden heating element is respectively connected with power supply unit, and can carry out heating to glass metal as needed prevents crystallization；
One group of equally distributed hot air circulation hole 208 is provided between the outside of pool wall 203 and insulation shell, each hot wind follows
Annular distance 208 both passes through pool wall 203 and is connected with hot air circulating system 414, and temperature is required when the temperature in heating space is not higher than
When, wind turbine 414 is closed, hot wind along hot air circulation hole 208 to pool wall 203 outside discharge, when temperature be higher than require temperature when, open
Open the operation that wind turbine 414 is blown a cold wind over, the temperature in heating space can be reduced quickly, each 208 equal energy of hot air circulation hole
Enough into cold wind or to go out hot wind by the independence of hot air circulating system 414, the heat in heating space 207 can pass through hot air circulation hole
208, which are delivered to pool wall 203, heats it；
Based on said structure, the glass metal melted enters in material path main body from melting furnaces 1, and material path 2 is by controller 4 to glass
After glass liquid temperature degree, quality are adjusted, enter back into molten tin bath 3 and be molded, controller used thereby 4 is DSC automatic control systems, the material path
Specifically used method comprises the following steps：
A, glass metal inputs
The glass metal of fusing is flowed into material path main body from 1 output terminal of melting furnaces；
B, glass metal adjusts
Measured temperature is transmitted to by four temperature of glass liquid measuring devices 401 being sequentially arranged along melt flow direction
In DSC automatic control systems, DSC automatic control systems adjust glass liquid heating device 401 so that four temperature thermocouple institutes
Testing temperature is respectively 1350-1400 DEG C, 1300-1350 DEG C, 1250-1300 DEG C and 1200-1250 DEG C, along melt flow side
It is no more than 25 DEG C/m to vertical temperature difference, transverse temperature difference is no more than 5 DEG C, and glass metal top layer to the bottom temperature difference is no more than 10 DEG C, along glass
Glass liquid flow direction forms stable temperature distribution history, improves bottom glass liquid temperature degree, prevents that bottom glass liquation is brilliant, reduces
The temperature difference between upper strata glass metal and lower floor's glass metal；
Measured temperature is transmitted in DSC automatic control systems by all space temperature measuring devices 403, and DSC is controlled automatically
System adjustment space heating device 404 processed is so that four 403 measured temperatures of space temperature measuring device are respectively 1400-1450
DEG C, 1350-1400 DEG C, 1300-1350 DEG C and 1250-1300 DEG C, with auxiliary control material path main body in temperature of glass liquid formed
Stable temperature distribution history；
Waste heat in heating space 207 is transferred to pool wall by the hot air circulating system 414 by hot air circulation hole 208
203, the temperature of glass liquid contacted with pool wall 203 is improved, prevents edge glass metal crystallization, reduces glass metal transverse temperature difference, or
Cooled down by the form blown a cold wind over to heating space 207, it is out of control to avoid enter into 3 glass flow quantity of molten tin bath；The flow lock
Plate 302 controls glass metal output flow, with the glass metal that flow gate 302 contacts because temperature and flow velocity reduce easily crystallization, shadow
Glass flow quantity Adjustment precision is rung, DSC automatic control systems are by controlling the heating element in flow gate 302 to ensure herein
Temperature of glass liquid is not less than 1250 DEG C；
C, off-grade glass liquid is handled
When crystallization occurs in glass metal, DSC automatic control systems start material drain system discharge bottom glass, improve material path
The mobility of glass metal in main body, meanwhile, DSC automatic control systems improve glass liquid heating device 402 and space heating device
404 power, improves glass metal middle and lower part, top and edge temperature so that temperature of glass liquid is more than recrystallization temperature, control heat
Air circulating system 414 is blown a cold wind over so that 302 front glass liquid temperature degree of flow gate maintains to stablize, and ensures that molten tin bath 3 shapes production technology
Stabilization, until crystallization disappear, DSC automatic control systems control the phased out work of material drain system；
When glass metal occur striped, brush line and it is of poor quality the defects of when, DSC automatic control systems adjust stirring by operation
Depth, rotating speed and steering, eliminate defect, improve glass metal homogenizing quality, meanwhile, DSC automatic control systems adjust stirring system
Heating element on middle blender, so that the temperature of glass liquid contacted is not less than 1250 DEG C, production constantly regulate early period
Rotating speed, depth and steering, state when obtaining glass metal stable quality is set as running parameter, when there is defect, according to scarce
Fall into generating unit and improve or reduce stirring depth, speed of agitator is improved or reduced according to the defects of different.Such as bottom surface is analysed
Crystalline substance, then reduce stirring depth, rev up, and improving melt flow improves Temperature Distribution, eliminates crystallization；When there is striped,
Accelerate or reduce rotating speed until striped disappears, different defects need different methods of adjustment, it is necessary to which technical staff provides instruction, stirring
System DCS system is performed.
D, glass metal exports
Glass metal is flowed into molten tin bath 3 after flow gate 302, lip tile 303, and DCS automatic control systems are according to molten tin bath 3
Differing formed requirement, adjusts rapidly the temperature of glass liquid in 2 exit of material path, and temperature of glass liquid is at 1215 DEG C -1230 at lip tile 303
DEG C and more than, corresponding viscosity be not less than 102.5PaS, the temperature of glass liquid at lip tile 303 is by the molybdenum at flow gate 302
Heated by electrodes temperature is adjusted control in advance, it is ensured that the viscosity of glass metal into molten tin bath 3 is adapted to float forming to require.
Claims (6)
1. a kind of calcium and magnesium aluminium silicon builds float glass process devitrified glass material path, which is connected to molten as the flow channel of glass metal
Between kiln (1) output terminal and molten tin bath (3) input terminal, including pool wall (203), bottom of pond (202) and cover board (204) form be used for glass
The material path main body and its insulation shell of outside that glass liquid stream is moved, it is characterised in that：The bottom of pond (202) is arranged in inlet
Front and rear connected horizontal channel and rising passway, the afterbody of the material path are provided with flow gate (302), flow gate (302)
Glass metal contact site is being provided with heating element, material path (2) is provided with flow gate (302) place to be used for and molten tin bath (3)
The lip tile (303) that input terminal is connected, the bottom of pond (202) are provided with one group along melt flow direction and are provided with material drain system
Trough (205), the cover board (204) is provided with heating space (207) between insulation shell, and pool wall is set in (203)
One group of hot air circulation hole (208) is equipped with, heating space (207) is by the exterior wind turbine in hot air circulation hole (208) and pool wall (203)
(414)；The material path (2) is provided with temperature control system, including controller (4) and coupled is arranged on material path main body
In one group of temperature of glass liquid measuring device (401) and one group of glass liquid heating device (402), be arranged on stirring in material path main body
One group of space temperature measuring device (403) for mix system, being arranged in heating space (207) and one group of space heating device
(404), the controller (4) is also connected with material drain system and hot air circulating system, in stirring system with glass metal contact site
Position is provided with heating element, and the heating element on stirring system and flow gate (302) is connected with controller (4).
A kind of 2. calcium and magnesium aluminium silicon building float glass process devitrified glass material path according to claim 1, it is characterised in that：The glass
Glass liquid temperature measuring equipment (401) is located at inlet, trough (205) place and the flow gate (302) of material path main body respectively
Place, space temperature measuring device (403) is identical with temperature of glass liquid measuring device (401) quantity and installation site corresponds.
A kind of 3. calcium and magnesium aluminium silicon building float glass process devitrified glass material path according to claim 1, it is characterised in that：The material
Length of the road (2) when glass metal day fusing amount is 50-100t is 4-6m, and the width of material path main body is 800-1000mm, height
For 400-500mm.
A kind of 4. calcium and magnesium aluminium silicon building float glass process devitrified glass material path according to claim 1, it is characterised in that：The material
The upper surface of bottom of pond (202) upper surface and lip tile (303) at road body exit be generally aligned in the same plane and the plane in rear end to
The lower inclination angle for tilting 3-5 °.
A kind of 5. calcium and magnesium aluminium silicon building float glass process devitrified glass material path according to claim 1, it is characterised in that：Described adds
Heat space (207) is divided into the heating zone of one group of independence along melt flow direction, and space temperature is both provided with each heating zone
Spend measuring device (403) and space heating device (404).
6. the application method of calcium and magnesium aluminium silicon building float glass process devitrified glass material path as claimed in claim 1, it is characterised in that described
Application method comprise the following steps：
A, glass metal inputs
The glass metal of fusing is flowed into material path main body from melting furnaces (1) output terminal；
B, glass metal adjusts
Measured temperature is transmitted to controller (4) by the temperature of glass liquid measuring device (401), and controller (4) adjusts glass
Liquid heating unit (402) fills so that being measured positioned at the temperature of glass liquid at the inlet of material path main body and flow gate (302) place
It is respectively 1350-1400 DEG C and 1200-1250 DEG C to put (401) measured temperature, other temperature of glass liquid measuring devices (401) are surveyed
Temperature declines and between 1250-1350 DEG C successively along melt flow direction；The space temperature measuring device (403) will
Measured temperature is transmitted to controller (4), and controller (4) adjusts space heating device (404) so that two of head and the tail both ends
Space temperature measuring device (403) measured temperature is respectively 1400-1450 DEG C and 1250-1300 DEG C, other space temperatures measure
Device (403) measured temperature declines and between 1300-1400 DEG C successively along melt flow direction；The hot air circulation system
Waste heat in heating space (207) is transferred to pool wall (203) by system (414) by hot air circulation hole (208), or by blowing
The form of cold wind cools down heating space (207)；The flow gate (302) controls glass metal output flow, and controls
Device (4) processed ensures that temperature of glass liquid is not less than 1250 DEG C herein by controlling the heating element in flow gate (302)；
C, off-grade glass liquid is handled
When crystallization occurs in glass metal, controller (4) starts material drain system discharge bottom of pond (202) glass metal, meanwhile, controller
(4) power of glass liquid heating device (402) and space heating device (404) is improved, control hot air circulating system (414) is blown cold
Wind so that temperature of glass liquid is more than recrystallization temperature so that flow gate (302) front glass liquid temperature degree maintains to stablize, until analysis
Brilliant phenomenon disappears, controller (4) the control phased out blowing of material drain system；When striped, brush line and of poor quality etc. occurs in glass metal
During defect, controller (4) starts stirring system and is stirred operation, meanwhile, controller (4) adjusts the heating unit on stirring system
Part is not so that the temperature of glass liquid contacted declines, and after defect expressivity, controller (4) control stirring system tapers off work
Make；
D, glass metal exports
Glass metal is flowed into molten tin bath (3) after flow gate (302), lip tile (303).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711232791.0A CN107915394B (en) | 2017-11-30 | 2017-11-30 | Calcium-magnesium-aluminum-silicon building float glass-ceramic channel and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711232791.0A CN107915394B (en) | 2017-11-30 | 2017-11-30 | Calcium-magnesium-aluminum-silicon building float glass-ceramic channel and use method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107915394A true CN107915394A (en) | 2018-04-17 |
| CN107915394B CN107915394B (en) | 2020-10-27 |
Family
ID=61898160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711232791.0A Active CN107915394B (en) | 2017-11-30 | 2017-11-30 | Calcium-magnesium-aluminum-silicon building float glass-ceramic channel and use method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107915394B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109437520A (en) * | 2019-01-10 | 2019-03-08 | 江西鼎盛玻璃实业有限公司 | A kind of novel forming device and method of float glass process devitrified glass |
| CN113233736A (en) * | 2021-04-25 | 2021-08-10 | 中国建材国际工程集团有限公司 | Float glass melting furnace with contraction type clarification area |
| CN115259637A (en) * | 2022-08-12 | 2022-11-01 | 浙江大学 | Rapid forming device and method for ultra-large single glass device |
| CN115626761A (en) * | 2022-10-31 | 2023-01-20 | 沧州四星玻璃股份有限公司 | Method for preventing surface devitrification of medium borosilicate glass tube |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6286337B1 (en) * | 2000-06-29 | 2001-09-11 | Corning Incorporated | Tubing system for reduced pressure finer |
| US20100126223A1 (en) * | 2008-11-26 | 2010-05-27 | Robert Richard Thomas | Apparatus for making glass and methods |
| CN102887620A (en) * | 2012-11-09 | 2013-01-23 | 江苏元升太阳能集团有限公司 | Feeding channel waste blowdown device for all-electric melting glass tank furnace |
| CN204434463U (en) * | 2015-01-06 | 2015-07-01 | 河北省沙河玻璃技术研究院 | A kind of devitrified glass melting furnaces material duct device |
| CN104843970A (en) * | 2015-04-14 | 2015-08-19 | 南京航空航天大学 | Method for rapidly adjusting viscosity of glass liquid through electric heating material channel |
| CN106630552A (en) * | 2016-09-19 | 2017-05-10 | 东华大学 | Forehearth coloring device for preparation of colored glass |
-
2017
- 2017-11-30 CN CN201711232791.0A patent/CN107915394B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6286337B1 (en) * | 2000-06-29 | 2001-09-11 | Corning Incorporated | Tubing system for reduced pressure finer |
| US20100126223A1 (en) * | 2008-11-26 | 2010-05-27 | Robert Richard Thomas | Apparatus for making glass and methods |
| CN102887620A (en) * | 2012-11-09 | 2013-01-23 | 江苏元升太阳能集团有限公司 | Feeding channel waste blowdown device for all-electric melting glass tank furnace |
| CN204434463U (en) * | 2015-01-06 | 2015-07-01 | 河北省沙河玻璃技术研究院 | A kind of devitrified glass melting furnaces material duct device |
| CN104843970A (en) * | 2015-04-14 | 2015-08-19 | 南京航空航天大学 | Method for rapidly adjusting viscosity of glass liquid through electric heating material channel |
| CN106630552A (en) * | 2016-09-19 | 2017-05-10 | 东华大学 | Forehearth coloring device for preparation of colored glass |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109437520A (en) * | 2019-01-10 | 2019-03-08 | 江西鼎盛玻璃实业有限公司 | A kind of novel forming device and method of float glass process devitrified glass |
| CN109437520B (en) * | 2019-01-10 | 2021-06-01 | 江西鼎盛新材料科技有限公司 | Novel forming device and method for float glass ceramics |
| CN113233736A (en) * | 2021-04-25 | 2021-08-10 | 中国建材国际工程集团有限公司 | Float glass melting furnace with contraction type clarification area |
| CN115259637A (en) * | 2022-08-12 | 2022-11-01 | 浙江大学 | Rapid forming device and method for ultra-large single glass device |
| CN115626761A (en) * | 2022-10-31 | 2023-01-20 | 沧州四星玻璃股份有限公司 | Method for preventing surface devitrification of medium borosilicate glass tube |
| CN115626761B (en) * | 2022-10-31 | 2023-12-29 | 沧州四星玻璃股份有限公司 | Method for preventing crystallization on surface of medium borosilicate glass tube |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107915394B (en) | 2020-10-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107915394A (en) | A kind of calcium and magnesium aluminium silicon building float glass process devitrified glass material path and its application method | |
| FI59576B (en) | FOERFARANDE OCH ANORDNING FOER FRAMSTAELLNING AV GLAS | |
| US4110097A (en) | Method for the manufacture of glass | |
| CN101456664B (en) | Special fiber glass melting method and its special electric melting furnace | |
| CA1073213A (en) | Method and apparatus for the manufacture of glass | |
| US5588978A (en) | Process and apparatus for coloring glass | |
| CN103130398B (en) | Float glass runner | |
| US2975224A (en) | Method and apparatus for melting glass | |
| CN204434463U (en) | A kind of devitrified glass melting furnaces material duct device | |
| CN102849920B (en) | Optical glass melting method and optical glass melting device used for method | |
| WO2019223325A1 (en) | Cross-fired furnace production system and production method for glass product | |
| KR102017037B1 (en) | Method for drawing vitrifiable materials | |
| CN101348320B (en) | Method for and agitating apparatus for eliminating display plate glass strip flaw | |
| US3989497A (en) | Glass melting | |
| CN104817267A (en) | Crystal glass and preparation method thereof | |
| CN102190424B (en) | Manufacturing method and device of inorganic plates and inorganic plates | |
| TWI758187B (en) | Glass tube overflow molding equipment | |
| CN109879581A (en) | A kind of manufacturing device and method of fluorophosphate optical glass | |
| CN205387540U (en) | Glass's forming die and former | |
| CN213113039U (en) | Laser glass smelting furnace | |
| US20120272685A1 (en) | Melting method and apparatus | |
| CN207175755U (en) | For producing the smelting apparatus of optical glass | |
| CN105541084B (en) | A kind of composite stirrer and the preparation facilities of glass and the preparation method of glass | |
| US5630860A (en) | Method and apparatus for conditioning and homogenizing a glass stream | |
| CN109437520B (en) | Novel forming device and method for float glass ceramics |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |