CN207031245U - Glass molten tin bath and its heating burner - Google Patents
Glass molten tin bath and its heating burner Download PDFInfo
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- CN207031245U CN207031245U CN201720588032.7U CN201720588032U CN207031245U CN 207031245 U CN207031245 U CN 207031245U CN 201720588032 U CN201720588032 U CN 201720588032U CN 207031245 U CN207031245 U CN 207031245U
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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Abstract
It the utility model is related to building materials, light industry, field of glass production technology in electronics industry, more particularly to a kind of glass tin tank heating burner and the glass molten tin bath provided with the burner, the burner includes main casing and nozzle, main casing is internally formed a cavity, nozzle is placed in cavity and cavity is separated into feed chamber and combustion chamber, the material spraying hole of connection feed chamber and combustion chamber is offered on nozzle, feed chamber is connected with fuel supply system, the first through hole of multiple connection combustion chambers and main casing exterior space is offered on the chamber wall of combustion chamber.Pass through burning of the fuel in combustion chamber, glass molten tin bath internal environment can be heated, increase tin liquor and the temperature of porch glass metal in glass molten tin bath, reach the purpose for reducing transition position thermograde between runner and tin liquor face, prevent glass metal surface from occurring brittle, ensure glass quality.
Description
Technical field
It the utility model is related to field of glass production technology in building materials, light industry, electronics industry, more particularly to a kind of glass tin
Groove heating burner and a kind of glass molten tin bath provided with the burner.
Background technology
Float glass process is the main production of current plate glass, in current float glass process, from tank furnace
The high-quality glass metal by fusing, clarification, cooling flow into molten tin bath through runner, high temperature tin liquor is filled in molten tin bath, glass metal is molten
Melt tin liquor surface to complete to shakeout, open up the forming process such as thin, polishing, cooling, fixed, form the high quality flat better than polished glass
Glass.
In the prior art, the glass metal melted in tank furnace, at a temperature of 1100 DEG C or so, molten tin bath is flowed into along runner,
In flow process, because runner and tin liquor face have difference in height, while larger thermograde be present, cause glass metal surface
Generation is brittle, so as to influence the quality of glass.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of glass tin tank heating burner and provided with the burning
The glass molten tin bath of device, the burner can heat to molten tin bath internal environment, reduce transition position between runner and tin liquor face
Thermograde, to overcome the drawbacks described above of prior art.
In order to solve the above-mentioned technical problem, the utility model adopts the following technical scheme that：
A kind of glass tin tank heating burner, including main casing and nozzle, main casing are internally formed a cavity, and nozzle is put
In being separated into feed chamber and combustion chamber in cavity and by cavity, connection feed chamber and combustion chamber are offered on nozzle
Material spraying hole, feed chamber are connected with fuel supply system, and multiple connection combustion chambers are offered on the chamber wall of combustion chamber
With the first through hole of main casing exterior space.
Preferably, it is fed in chamber and is provided with separator, separator is connected with nozzle and feed chamber is separated into combustible gas
Body passage and combustion-supporting gas passage；Material spraying hole includes the first material spraying hole being connected with fuel gas passage and led to combustion-supporting gas
The second material spraying hole that road is connected；Fuel supply system include the fuel gas feedway that is connected with fuel gas passage and
The combustion-supporting gas feedway being connected with combustion-supporting gas passage.
Preferably, separator is the first feed pipe, and one end of the first feed pipe is connected with nozzle, and the other end stretches out feed
Chamber.
Preferably, the first feed pipe is internally formed fuel gas passage, the chamber wall of the first feed pipe and feed chamber it
Between formed combustion-supporting gas passage.
Preferably, the first feed pipe is connected with fuel gas feedway, is fed on the chamber wall of chamber and is communicated with
Second feed pipe of combustion-supporting gas passage and combustion-supporting gas feedway.
Preferably, in addition to shell body, the direction that shell body points to feed chamber along combustion chamber are coated at main casing simultaneously
Cooling chamber is formed between main casing, cooling chamber is connected with cooling gas feedway；It is all provided with each first through hole
There is a blast pipe, one end of blast pipe is connected with first through hole, and the other end stretches out cooling chamber.
Preferably, multiple connection cooling chamber and shell body are offered on cooling chamber's chamber wall relative with combustion chamber
Second through hole of exterior space.
Preferably, the second through hole is alternately distributed with direction of the blast pipe along combustion chamber sensing feed chamber.
Preferably, cooling chamber and the 3rd feed of cooling gas feedway are communicated with the chamber wall of cooling chamber
Pipe.
A kind of glass molten tin bath, the porch of glass molten tin bath are provided with glass tin tank heating burner as described above.
Compared with prior art, the utility model has significant progressive：
Glass tin tank heating burner of the present utility model, it can be conveyed and fired into feed chamber from fuel supply system
Material, fuel are sprayed into combustion chamber through the material spraying hole on nozzle, and in combustion chamber Indoor Combustion, caused flame is through first through hole
The exterior space of main casing is sprayed into, so as to be heated to the external environment condition of burner.Burner of the present utility model is set
In the porch of glass molten tin bath, due to being hot environment in glass molten tin bath so that the temperature in the combustion chamber of burner can
Reach the temperature needed for fuel combustion, therefore burning of the fuel in combustion chamber can be realized, inside to glass molten tin bath
Environment is heated, and on the one hand can increase the temperature of tin liquor in glass molten tin bath, and another side can also improve glass tin channel inlet
Locate the temperature of glass metal, so as to reach the purpose for reducing transition position thermograde between runner and tin liquor face, prevent glass metal table
Brittle, guarantee glass quality occurs for face.
Brief description of the drawings
Fig. 1 is the schematic perspective view of the glass tin tank heating burner of the utility model embodiment.
Fig. 2 is the schematic cross-sectional view of the glass tin tank heating burner of the utility model embodiment.
Fig. 3 is the partial cutaway view schematic of the glass tin tank heating burner of the utility model embodiment.
Fig. 4 is the schematic cross-sectional view of the nozzle of the glass tin tank heating burner of the utility model embodiment.
In figure：
1st, main casing 10, cavity 101, feed chamber
102nd, combustion chamber 103, fuel gas passage 104, combustion-supporting gas passage
2nd, nozzle 21, the first material spraying hole 22, the second material spraying hole
31st, first through hole 32, the second through hole 41, the first feed pipe
42nd, the second feed pipe 43, the 3rd feed pipe 5, shell body
50th, cooling chamber 6, blast pipe 7, connector
Embodiment
Specific embodiment of the present utility model is described in further detail below in conjunction with the accompanying drawings.These embodiments are only
For illustrating the utility model, and it is not limitation of the utility model.
, it is necessary to explanation in description of the present utility model, term " " center ", " longitudinal direction ", " transverse direction ", " on ", " under ",
The orientation or position relationship of the instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of description the utility model and simplifies description, rather than instruction
Or imply that signified device or element must have specific orientation, with specific azimuth configuration and operation, therefore be not understood that
For to limitation of the present utility model.In addition, term " first ", " second " be only used for describe purpose, and it is not intended that instruction or
Imply relative importance.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, on can understanding as the case may be
State concrete meaning of the term in the utility model.
In addition, in description of the present utility model, unless otherwise indicated, " multiple " are meant that two or more.
As shown in Figures 1 to 4, a kind of embodiment of glass tin tank heating burner of the present utility model.Such as Fig. 2 institutes
Show, the burner of the present embodiment includes main casing 1 and nozzle 2.Main casing 1 is internally formed a cavity 10, and nozzle 2 is placed in cavity 10
It is interior, also, cavity 10 is separated into feed chamber 101 and combustion chamber 102 by nozzle 2, and connection feed chamber is offered on nozzle 2
101 with the material spraying hole of combustion chamber 102.Feed chamber 101 is connected with fuel supply system (not shown), is supplied by fuel
Fuel is conveyed into feed chamber 101 to device, fuel is sprayed into combustion chamber 102 through the material spraying hole on nozzle 2, and is being burnt
Burnt in chamber 102.Multiple first through hole 31 are offered on the chamber wall of combustion chamber 102, first through hole 31 connects combustion chamber
Room 102 and the exterior space of main casing 1, fuel flame caused by burning in combustion chamber 102 sprays into through first through hole 31 to be led
The exterior space of housing 1, so as to be heated to the external environment condition of burner.
The burner of the present embodiment can be used for heating glass molten tin bath, and during application, the burner of the present embodiment is set
Put in the porch of glass molten tin bath, due to being hot environment in glass molten tin bath so that the temperature in the combustion chamber 102 of burner
The temperature needed for fuel combustion can be reached, therefore burning of the fuel in combustion chamber 102 can be realized, so as to glass tin
Groove internal environment is heated, and on the one hand increases the temperature of tin liquor in glass molten tin bath, and another side improves glass at glass tin channel inlet
The temperature of glass liquid, reach the purpose for reducing transition position thermograde between runner and tin liquor face, it is crisp to prevent that glass metal surface from occurring
Change, ensure glass quality.
Further, the present embodiment is provided with separator in feed chamber 101, and separator is connected with nozzle 2, also, separates
Part is separated into fuel gas passage 103 and combustion-supporting gas passage 104, fuel gas passage 103 and combustion-supporting gas by chamber 101 is fed
Body passage 104 is separate.Material spraying hole on nozzle 2 include the first material spraying hole 21 being connected with fuel gas passage 103 and
The second material spraying hole 22 being connected with combustion-supporting gas passage 104.Fuel supply system includes being connected with fuel gas passage 103
Fuel gas feedway and the combustion-supporting gas feedway that is connected with combustion-supporting gas passage 104.Supplied by fuel gas
Device and combustion-supporting gas feedway be passed through respectively into fuel gas passage 103 and combustion-supporting gas passage 104 fuel gas and
Combustion-supporting gas, and fuel gas and combustion-supporting gas spray into combustion chamber 102 through the first material spraying hole 21 and the second material spraying hole 22 respectively
In, fuel gas and combustion-supporting gas is remixed burning after entering in combustion chamber 102, it is possible thereby to avoid fuel from being fed
It is heated and burns in chamber 101, ensures safety.First material spraying hole 21 and the second material spraying hole 22 can set multiple, its number
Amount and distribution mode are not limited to.
Preferably, the separator in the present embodiment is the first feed pipe 41, and one end and the nozzle 2 of the first feed pipe 41 connect
Connect, the other end of the first feed pipe 41 stretches out feed chamber 101 so that the inner space of the first feed pipe 41 and feed chamber
101 is separate.The present embodiment is using the inner space of the first feed pipe 41 as fuel gas passage 103, by the first feed pipe
Space between 41 and the chamber wall of feed chamber 101 is as combustion-supporting gas passage 104.Preferably, the first feed pipe 41 is spraying
The middle part of mouth 2 is connected with nozzle 2, and direction of first feed pipe 41 along the sensing feed chamber 101 of combustion chamber 102 extends and stretched
Go out to be fed chamber 101 so that combustion-supporting gas passage 104 circumferentially surrounds the first feed pipe 41, that is, circumferentially surrounds fuel gas
Passage 103.
In this implementation, the first feed pipe 41 is connected with fuel gas feedway.It is fed on the chamber wall of chamber 101 and sets
There is the second feed pipe 42 of connection combustion-supporting gas passage 104 and combustion-supporting gas feedway.Preferably, it is fed the chamber of chamber 101
Locular wall is provided with two the second feed pipes 42, and two the second feed pipes 42 are relatively located at the both sides of the first feed pipe 41, can
Increase the uniformity of feeding.
The fuel gas feedway of the present embodiment can be nitrogen feedway or hydrogen gas supplying apparatus or nitrogen hydrogen
Mixed gas feedway, combustible gas is used as using supplying nitrogen or hydrogen into combustion chamber 102 or nitrogen hydrogen gas mixture
Body.The combustion-supporting gas feedway of the present embodiment is preferably oxygen feedway, using into combustion chamber 102 convey oxygen as
Combustion-supporting gas.Nitrogen or hydrogen or nitrogen hydrogen gas mixture mix with oxygen in combustion chamber 102, and in high temperature environments
Burn.
Further, the burner of the present embodiment also includes shell body 5, and shell body 5 points to feed chamber along combustion chamber 102
101 direction is coated at main casing 1, combustion chamber 102 and feed chamber 101 is respectively positioned on inside shell body 5, also, shell
Cooling chamber 50 is formed between body 5 and main casing 1, cooling chamber 50 is connected with cooling gas feedway (not shown)
It is logical, convey cooling gas into cooling chamber 50 from cooling gas feedway.Each first through hole 31 on combustion chamber 102
Place is equipped with a blast pipe 6, and one end of blast pipe 6 is connected with first through hole 31, and the other end of blast pipe 6 stretches out cooling chamber
Combustion chamber 102 is connected by room 50, blast pipe 6 with the exterior space of shell body 5, i.e., by combustion chamber 102 and burner
Exterior space is connected, and the combustion flame in combustion chamber 102 is sprayed by blast pipe 6, so as to the outer of burner
Portion's environment is heated.Cooling gas is passed through in cooling chamber 50, combustion chamber 102 can be played a part of cooling,
Prevent in combustion chamber 102 due to fuel combustion and temperature is too high, avoid producing scaling loss to the main casing 1 of burner and destroy.
Further, in the present embodiment, multiple companies are offered on the chamber wall relative with combustion chamber 102 of cooling chamber 50
Logical cooling chamber 50 and the second through hole 32 of the exterior space of shell body 5.The cooling gas being passed through in cooling chamber 50 can be from
Two through holes 32 are discharged into the exterior space of shell body 5, because cooling gas is changed in cooling chamber 50 with combustion chamber 102
Heat, absorb the heat in combustion chamber 102 and heat up, therefore from can be to the external environment condition of burner after the discharge of the second through hole 32
To heat effect.
Thus, the present embodiment is passed through cooling gas into cooling chamber 50, on the one hand combustion chamber 102 can be played cold
But the effect to cool, the heat that cooling gas exchanges heat and absorbed with combustion chamber 102 can also on the other hand be utilized to burner
External environment condition heated.
In the present embodiment, the second through hole 32 in cooling chamber 50 points to feed chamber with blast pipe 6 along combustion chamber 102
101 direction is alternately distributed.In the present embodiment, first through hole 31 and the quantity of blast pipe 6, cooling chamber on combustion chamber 102
The quantity of the second through hole 32 on 50 is not limited to.Preferably, as depicted in figs. 1 and 2, first through hole 31 on combustion chamber 102
And blast pipe 6 is distributed on main casing 1 in array, the second through hole 32 is also distributed on shell body 5 into array, the second through hole
32 and the blast pipe 6 through cooling chamber 50 be then alternately distributed on shell body 5 in array.
The present embodiment is communicated with cooling chamber 50 and cooling gas feedway on the chamber wall of cooling chamber 50
3rd feed pipe 43.Preferably, the 3rd feed pipe 43 is arranged on the chamber wall of cooling chamber 50 close to the one of feed chamber 101
End.The present embodiment is provided with two the 3rd feed pipes 43 on the chamber wall of cooling chamber 50, and two the 3rd feed pipes 43 are relative
Ground is located at the both sides of the first feed pipe 41, can increase the uniformity of feeding.
The cooling gas feedway of the present embodiment is nitrogen feedway, using into cooling chamber 50 supplying nitrogen as
Cooling gas.
Further, the present embodiment is provided with connector 7 in the outside of shell body 5, and connector 7 is used to realize that the present embodiment burns
The installation of device.Connector 7 is fixedly connected with glass molten tin bath, you can the burner of the present embodiment is installed on molten tin bath.It is preferred that
Ground, connector 7 are the ring flange circumferentially extended along shell body 5, can be detachably connected with glass molten tin bath, such as be connected by screw
Connect, can also be welded with glass molten tin bath.Preferably, connector 7 is arranged on shell body 5 close to the one of the feed chamber 101 of main casing 1
End.
The shape of main casing 1, nozzle 2 and shell body 5 is not limited to.In the present embodiment, it is preferable that main casing 1 and shell
Body 5 uses the cylindrical housings part of inner hollow, the cooling chamber 50 that main casing 1 and shell body 5 are formed in a ring, nozzle 2
It is then in the form of annular discs.As shown in figure 3, discoid nozzle 2 is located in main casing 1 with the axis perpendicular of main casing 1.Such as Fig. 2
Shown in Fig. 4, discoid nozzle 2 centre corresponding with the inside of the first feed pipe 41 is provided with multiple first material sprays
Hole 21, it is preferable that multiple first material spraying holes 21 are uniformly distributed, corresponding with the outside of the first feed pipe 41 in discoid nozzle 2
Peripheral position then circumferentially arranged with multiple second material spraying holes 22, it is preferable that multiple second material spraying holes 22 are uniformly distributed.
Based on said burner, the present embodiment additionally provides a kind of glass molten tin bath, the entrance of the glass molten tin bath of the present embodiment
Said burner of the place provided with the present embodiment.
In summary, the glass tin tank heating burner of the present embodiment and the glass molten tin bath provided with the burner, pass through
Burning of the fuel in combustion chamber 102, glass molten tin bath internal environment can be heated；Meanwhile by cooling chamber
Cooling gas is passed through in 50, on the one hand combustion chamber 102 can be played a part of cooling, on the other hand can also utilized
Cooling gas plays heat effect with the heat that combustion chamber 102 exchanges heat and absorbed to glass molten tin bath internal environment.Thus, a side
Face can increase the temperature of tin liquor in glass molten tin bath, and another side can also improve the temperature of glass metal at glass tin channel inlet, from
And reach the purpose for reducing transition position thermograde between runner and tin liquor face, prevent glass metal surface hair from, into embrittlement, ensureing glass
Glass quality.
Described above is only preferred embodiment of the present utility model, it is noted that for the common skill of the art
For art personnel, on the premise of the utility model technical principle is not departed from, some improvement and replacement can also be made, these change
Enter and replace and also should be regarded as the scope of protection of the utility model.
Claims (10)
1. a kind of glass tin tank heating burner, it is characterised in that including main casing (1) and nozzle (2), the main casing
(1) cavity (10) is internally formed, the nozzle (2) is placed in the cavity (10) and the cavity (10) is separated into feed
Chamber (101) and combustion chamber (102), the connection feed chamber (101) and the combustion chamber are offered on the nozzle (2)
The material spraying hole of room (102), the feed chamber (101) are connected with fuel supply system, the chamber of the combustion chamber (102)
Multiple connection combustion chambers (102) and the first through hole (31) of the main casing (1) exterior space are offered on wall.
2. glass tin tank heating burner according to claim 1, it is characterised in that in the feed chamber (101)
Provided with separator, the separator is connected with the nozzle (2) and the feed chamber (101) is separated into fuel gas passage
And combustion-supporting gas passage (104) (103)；The material spraying hole includes the first spray being connected with the fuel gas passage (103)
Material hole (21) and the second material spraying hole (22) being connected with the combustion-supporting gas passage (104)；The fuel supply system includes
The fuel gas feedway that is connected with the fuel gas passage (103) and it is connected with the combustion-supporting gas passage (104)
Logical combustion-supporting gas feedway.
3. glass tin tank heating burner according to claim 2, it is characterised in that the separator is the first feed
Manage (41), one end of first feed pipe (41) is connected with the nozzle (2), and the other end stretches out the feed chamber
(101)。
4. glass tin tank heating burner according to claim 3, it is characterised in that in first feed pipe (41)
Portion forms the fuel gas passage (103), between first feed pipe (41) and the chamber wall of the feed chamber (101)
Form the combustion-supporting gas passage (104).
5. glass tin tank heating burner according to claim 4, it is characterised in that first feed pipe (41) with
The fuel gas feedway is connected, and being communicated with the combustion-supporting gas on the chamber wall of the feed chamber (101) leads to
Second feed pipe (42) in road (104) and the combustion-supporting gas feedway.
6. glass tin tank heating burner according to claim 1, it is characterised in that described also including shell body (5)
The direction that shell body (5) points to the feed chamber (101) along the combustion chamber (102) is coated at the main casing (1) simultaneously
Cooling chamber (50) is formed between the main casing (1), the cooling chamber (50) is connected with cooling gas feedway；
Each first through hole (31) place is equipped with a blast pipe (6), one end and the first through hole (31) of the blast pipe (6)
It is connected, and the other end stretches out the cooling chamber (50).
7. glass tin tank heating burner according to claim 6, it is characterised in that the cooling chamber (50) and institute
State and multiple connections cooling chamber (50) and the shell body (5) are offered on the relative chamber wall of combustion chamber (102) outside
Second through hole (32) in portion space.
8. glass tin tank heating burner according to claim 7, it is characterised in that second through hole (32) and institute
Direction of the blast pipe (6) along the combustion chamber (102) the sensing feed chamber (101) is stated to be alternately distributed.
9. glass tin tank heating burner according to claim 6, it is characterised in that the chamber of the cooling chamber (50)
The 3rd feed pipe (43) of the cooling chamber (50) and the cooling gas feedway is communicated with locular wall.
10. a kind of glass molten tin bath, it is characterised in that the porch of the glass molten tin bath is provided with as any one in claim 1 to 9
Glass tin tank heating burner described in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720588032.7U CN207031245U (en) | 2017-05-24 | 2017-05-24 | Glass molten tin bath and its heating burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720588032.7U CN207031245U (en) | 2017-05-24 | 2017-05-24 | Glass molten tin bath and its heating burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207031245U true CN207031245U (en) | 2018-02-23 |
Family
ID=61469821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720588032.7U Active CN207031245U (en) | 2017-05-24 | 2017-05-24 | Glass molten tin bath and its heating burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207031245U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107162389A (en) * | 2017-05-24 | 2017-09-15 | 中国建材国际工程集团有限公司 | Glass molten tin bath and its heating burner |
| CN110255868A (en) * | 2019-07-31 | 2019-09-20 | 上海耀皮玻璃集团股份有限公司 | A kind of float glass forming arrangement and forming method improving protective gas utilization efficiency |
| CN111439917A (en) * | 2020-04-27 | 2020-07-24 | 河北南玻玻璃有限公司 | Nitrogen gas feeding device for ultra-white float glass production |
-
2017
- 2017-05-24 CN CN201720588032.7U patent/CN207031245U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107162389A (en) * | 2017-05-24 | 2017-09-15 | 中国建材国际工程集团有限公司 | Glass molten tin bath and its heating burner |
| CN107162389B (en) * | 2017-05-24 | 2020-07-31 | 中国建材国际工程集团有限公司 | Glass tin bath and burner for heating same |
| CN110255868A (en) * | 2019-07-31 | 2019-09-20 | 上海耀皮玻璃集团股份有限公司 | A kind of float glass forming arrangement and forming method improving protective gas utilization efficiency |
| CN110255868B (en) * | 2019-07-31 | 2024-04-02 | 上海耀皮玻璃集团股份有限公司 | Float glass forming device and forming method for improving utilization efficiency of shielding gas |
| CN111439917A (en) * | 2020-04-27 | 2020-07-24 | 河北南玻玻璃有限公司 | Nitrogen gas feeding device for ultra-white float glass production |
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