CN209890485U - Tin liquid convection blocking device for float glass tin bath - Google Patents
Tin liquid convection blocking device for float glass tin bath Download PDFInfo
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- CN209890485U CN209890485U CN201921324981.XU CN201921324981U CN209890485U CN 209890485 U CN209890485 U CN 209890485U CN 201921324981 U CN201921324981 U CN 201921324981U CN 209890485 U CN209890485 U CN 209890485U
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- graphite
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- molten tin
- tin
- float glass
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Abstract
The utility model discloses a float glass molten tin bath tin liquor convection current blocking device, keep off rectangular pieces of land in a field and graphite inner liner including floated scalable graphite, wherein, all be equipped with the graphite inner liner on the both sides curb wall inside wall on the molten tin width direction, the both sides equipartition has put one set of floated scalable graphite and has kept off rectangular pieces of land in a field on the molten tin width direction, floated scalable graphite keeps off rectangular pieces of land in a field and can slide for the molten tin, floated scalable graphite keeps off rectangular pieces of land in a field and is equipped with a stop part, stop part is located between graphite inner liner and the glass area, stop part's lower edge and molten tin bath bottom brick smooth contact, stop part go up along being higher than the. The utility model provides a float glass molten tin bath convection current blocking device, the molten tin is held like the cooling space from the low temperature effectively in the suppression float glass production molten tin bath, to the high temperature end like the flow in shaping district, has especially reduced the backward flow of molten tin between glass area and molten tin bath side wall.
Description
Technical Field
The utility model relates to a float glass makes technical field, especially relates to a float glass molten tin bath convection current blocking device.
Background
The forming process of float glass production is completed in a tin bath, high-temperature tin liquid is filled in the tin bath, molten glass continuously flows into the tin bath from an inlet end of the tin bath and floats on a tin liquid surface with a large specific gravity, and the molten glass is gradually cooled and hardened along the length direction of the tin bath through technological links of flattening, polishing, forming, cooling and the like, and finally is lifted to a transition roller table at an outlet end of the tin bath, enters an annealing kiln through the transition roller table, and then the subsequent working section is completed. The forming principle of float glass is that the molten glass liquid produces plate glass with required thickness and width under the combined action of self gravity, surface tension, annealing roller traction and edge roller tension.
The tin bath can be divided into a leveling zone, a polishing zone, a forming zone and a cooling zone along the running direction of the glass ribbon, wherein the tin liquor temperature of the leveling zone, the polishing zone and the forming zone is higher than that of the cooling zone. And the viscosity of the glass liquid before the cooling zone is small, and the small fluctuation of the tin liquid surface can influence the flatness of the glass product and is difficult to recover. As the ribbon moves forward (in the direction of the tail of the bath), the molten tin below the ribbon also flows forward, and as the ribbon leaves the end of the bath, the molten tin will flow back. The tin liquid reflows to two parts, one part reflows from the bottom of the advancing tin liquid, and the other part reflows from the gap between the glass ribbon and the side wall brick of the tin bath. Because the temperature difference between the high-temperature end and the low-temperature end of the tin bath is larger, in addition, the heat dissipation of the edge part of the tin bath is quicker, and the temperature of the reflowing tin liquid is lower than that of the normally flowing tin liquid. When the cold reflow tin liquid flows to the forming area and the high temperature area in front of the forming area, a larger transverse temperature difference is generated, so that stronger tin liquid turbulence is caused, and the forming quality of the plate glass product is further influenced. The greater the area of molten tin exposed between the glass ribbon and the side walls of the tin bath, the more intense the convection.
In the prior art, the most common technical means for solving the problem of the transverse temperature difference of the glass ribbon in the tin bath is to use a linear motor as a tin liquor convection controller. The tin liquid belongs to conductive metal, and the flow direction of the tin liquid can be controlled through a magnetic field, so that the convection of the tin liquid between the forming area and the cooling area is controlled. However, the linear motor can only control the convection of the exposed tin liquid between the glass ribbon and the side wall of the tin bath, and meanwhile, the linear motor has high operation cost and difficult maintenance, which bring some inconvenience to production.
Accordingly, there is a need in the art for a tin bath apparatus that effectively inhibits the convection of molten tin.
SUMMERY OF THE UTILITY MODEL
The utility model aims to reduce the reflux of tin liquor between a glass belt and a tin bath side wall.
In order to achieve the purpose, the utility model provides a tin bath tin liquor convection blocking device for float glass, which comprises a suspension type telescopic graphite blocking ridge and a graphite lining layer, wherein,
all be equipped with the graphite inner liner on the lateral wall inside wall of both sides on the molten tin bath width direction, one set of floated scalable graphite fender rectangular pieces of land in a field has been put to the both sides equipartition on the molten tin bath width direction, and floated scalable graphite keeps off rectangular pieces of land in a field and can slide for the molten tin bath, and floated scalable graphite keeps off rectangular pieces of land in a field and is equipped with a stop part, and stop part is located between graphite inner liner and the glass area, the lower edge of stop part and molten tin bath end brick smooth contact, the last edge of stop part is higher than the.
Preferably, the tin bath tin liquor convection blocking device for float glass further comprises a refractory material blocking ridge paved above the bottom bricks of the tin bath, the refractory material blocking ridge penetrates through the transverse direction of the whole tin bath, and the lower edge of the blocking part is in smooth contact with the upper part of the refractory material blocking ridge.
Preferably, the upper edge of graphite inner liner layer and molten tin bath side wall top end face parallel and level, the lower edge of graphite inner liner layer is located refractory material and keeps off bank lower edge below.
Preferably, the floated scalable graphite fender rectangular pieces of land in a field includes many mobilizable baffles relatively, and the front end of baffle is the stop part, and the baffle rear end is equipped with the connecting rod, and the connecting rod of many baffles all supports through the bracing piece.
Preferably, the baffle comprises a blocking part, a connecting part and a moving part which are sequentially connected, the blocking part, the connecting part and the moving part form a Z-shaped structure, one side of the connecting part is abutted to the graphite lining layer, the lower edge of the moving part is placed above the top end face of the tin bath, and the connecting rod is fixedly connected with the moving part.
Preferably, the support rod is fixed on a positioning bracket, and the positioning bracket is fixed on a steel structure on the outer wall of the tin bath in a welding mode.
Preferably, the lower edges of the blocking parts of the baffles in each set of suspended telescopic graphite blocking ridges are arranged in parallel.
Preferably, the blocking part and the moving part are both flat plate-shaped structures and are arranged in parallel.
Preferably, the suspension type telescopic graphite ridge blocking frame is internally provided with a hollow groove, and metal with density larger than that of tin liquid is contained in the hollow groove.
Preferably, a cooling and/or heating device is further arranged inside the suspension type retractable graphite check ridge.
The utility model provides a float glass molten tin bath tin liquid convection current blocking device through set up this convection current blocking device in molten tin bath suitable position, carries out cold and hot tin liquid and separates, and the horizontal difference in temperature in glass area has effectively been solved to the convection current of reasonable control tin liquid. Especially when the width of the glass plate is changed in production, the tin bath edge seal does not need to be opened to replace blocking ridges with different specifications, and the position for blocking tin liquid can be controlled only by adjusting part of the baffle plates of the device, so that the flatness of the plate glass is improved, and the production efficiency is greatly improved. In addition, the tin bath tin liquor convection blocking device for float glass also has the advantages of simple structure and easy realization. Compared with the method of a linear motor in the prior art, the tin bath convection blocking device for float glass can be used for investing equipment in the early stage at one time, and the subsequent operation cost is far lower than that of the prior art.
Drawings
FIG. 1 is a schematic view of a structure of a convection barrier for molten tin in a float glass molten tin bath according to the present invention;
FIG. 2 is a schematic view of the overhead structure of the tin bath convection barrier of the float glass of the present invention.
In the figure, 1, a tin bath bottom brick, 2, a tin bath side wall, 3, molten tin, 4, a refractory material retaining bank, 5, a graphite lining layer, 6-1, a first baffle, 6-2, a second baffle, 6-3, a connecting rod, 7, a positioning bracket and 8, a supporting rod.
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It should be noted that, in the description of the present invention, the terms "lateral", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Referring to fig. 1 and 2, a tin bath convection blocking device for a float glass includes a floating type retractable graphite blocking ridge and a graphite lining layer 5, wherein,
all be equipped with graphite inner liner 5 on the lateral wall inside wall of both sides on the molten tin bath width direction (graphite inner liner 5 width can set up 30 ~ 80 mm), one set of floated scalable graphite fender rectangular pieces of land in a field has been put to the both sides equipartition on the molten tin bath width direction, floated scalable graphite keeps off rectangular pieces of land in a field and can slide for the molten tin bath, floated scalable graphite keeps off rectangular pieces of land in a field and is equipped with a stop part, stop part is located between graphite inner liner 5 and the glass area, stop part lower along with molten tin bath bottom brick 1 upper surface smooth contact, stop part go up along being higher than the molten tin level, keep off rectangular pieces of land in a field and graphite inner liner 5's combined action control molten tin 3's backward flow through floated scalable graphite fender rectangular pieces of land, two sets.
Further, this float glass molten tin bath tin liquor convection current blocking device still keeps off bank 4 including the refractory material of laying in molten tin bath bottom brick 1 top, and refractory material keeps off bank 4 and link up in whole molten tin bath transverse direction, and refractory material keeps off bank 4 both ends and all is connected with both sides graphite inner liner 5, and the lower edge of blocking part keeps off bank 4 top smooth contact with refractory material. The height of the refractory material baffle ridge 4 is lower than the height of the tin liquid level. The length direction both ends of refractory material keep off bank 4 are equipped with graphite inside liner 5. In some cases, the width of the floated retractable graphite dam is the same as the refractory dam 4. In some cases, the width of the floated retractable graphite dam is wider than the refractory dam 4. In some cases, the width of the floated retractable graphite dam is narrower than the refractory dam 4. The graphite check ridge can also be used alone without the refractory material check ridge 4.
In this embodiment, the upper edge of the graphite lining layer 5 is flush with the top end face of the side wall 2 of the molten tin bath, and the lower edge of the graphite lining layer 5 is located below the lower edge of the refractory material baffle ridge 4.
Referring to fig. 2, each set of suspension type telescopic graphite blocking ridge comprises a plurality of relatively movable baffles (each set comprises at least two baffles), the front ends of the baffles are blocking parts, the rear ends of the baffles are provided with connecting rods 6-3, the connecting rods 6-3 of the baffles are all supported through supporting rods 8, and the positions of the baffles are adjusted to meet the requirements of producing glass with different plate widths. In each set of suspension type telescopic graphite check ridge, part of the baffle plates can be arranged for fixation, and part of the baffle plates can be arranged for movement. In this embodiment, two baffle plates are provided as an example, wherein the first baffle plate 6-1 is fixed, and the second baffle plate 6-2 is retractable back and forth. The baffle can be propelled by people and/or machinery, and the utility model discloses do not limit to this. The baffle plates can move relatively, so that the effective length of the graphite blocking ridges can be freely adjusted according to the requirements of producing glass with different plate widths.
Specifically, the baffle comprises a blocking part, a connecting part and a moving part which are sequentially connected, the blocking part, the connecting part and the moving part form a Z-shaped structure, one side of the connecting part is used for abutting against the graphite lining layer 5, the lower edge of the moving part is placed above the top end face of the tin bath, and the connecting rod 6-3 is fixedly connected with the moving part. The support rod 8 is fixed on the positioning bracket 7, and the positioning bracket 7 is fixed on a steel structure on the outer wall of the tin bath in a welding mode. The tail connecting rods 6-3 of the baffles are arranged in parallel. The blocking part and the moving part are both of flat plate structures and are arranged in parallel. The connecting part is also of a flat structure and is perpendicular to the blocking part.
The lower edges of the blocking parts of the baffles in each set of suspension type telescopic graphite blocking ridge are arranged in parallel. The length of the moving part is 300-500mm, namely the distance for the baffle to advance forwards is 300-500mm, or the distance for the baffle to advance forwards is 4/5 which is the maximum thickness of the side wall of the tin bath.
Further, a hollow groove (not shown in the figure) is arranged inside the suspension type retractable graphite blocking ridge, and metal (such as tungsten steel) with density larger than that of the molten tin 3 is contained in the hollow groove to overcome buoyancy of the molten tin 3 to the hollow groove.
Furthermore, a cooling and/or heating device is arranged in the suspension type telescopic graphite blocking ridge and is used for adjusting the temperature of the molten tin and/or the space temperature.
It should be noted that the molten tin convection blocking device can be installed at any position in the length direction of the molten tin bath where the molten tin convection needs to be blocked, such as at the junction of the molten tin bath forming area and the cooling area.
The float glass molten tin bath convection current blocking device that this embodiment provided through set up this convection current blocking device at molten tin bath suitable position, carries out cold and hot molten tin and separates, and the horizontal difference in temperature in glass area has effectively been solved to the convection current of rational control molten tin. Especially when the width of the glass plate is changed in production, the tin bath edge seal does not need to be opened to replace blocking ridges with different specifications, and the position for blocking tin liquid can be controlled only by adjusting part of the baffle plates of the device, so that the flatness of the plate glass is improved, and the production efficiency is greatly improved. In addition, the tin bath tin liquor convection blocking device for float glass also has the advantages of simple structure and easy realization. Compared with the method of a linear motor in the prior art, the tin bath convection blocking device for float glass can be used for investing equipment in the early stage at one time, and the subsequent operation cost is far lower than that of the prior art.
The above is only the preferred embodiment of the present invention, and not the scope of the present invention, all the equivalent structural changes made by the contents of the specification and the drawings, or the direct or indirect application in other related technical fields are included in the patent protection scope of the present invention.
Claims (10)
1. A tin liquid convection blocking device of a float glass tin bath is characterized by comprising a suspension type telescopic graphite blocking ridge and a graphite lining layer, wherein,
all be equipped with the graphite inner liner on the lateral wall inside wall of both sides on the molten tin bath width direction, one set of floated scalable graphite fender rectangular pieces of land in a field has been put to the both sides equipartition on the molten tin bath width direction, and floated scalable graphite keeps off rectangular pieces of land in a field and can slide for the molten tin bath, and floated scalable graphite keeps off rectangular pieces of land in a field and is equipped with a stop part, and stop part is located between graphite inner liner and the glass area, the lower edge of stop part and molten tin bath end brick smooth contact, the last edge of stop part is higher than the.
2. The convection barrier of molten tin in a float glass bath according to claim 1, further comprising a refractory sill laid over the bottom bricks of the bath, wherein the refractory sill extends across the entire lateral direction of the bath, and wherein the lower edge of the barrier portion is in smooth contact with the upper side of the refractory sill.
3. The tin bath convection barrier of float glass as claimed in claim 2, wherein the graphite lining layer has an upper edge flush with the top end surface of the side wall of the tin bath, and a lower edge below the lower edge of the refractory dam.
4. The convection barrier of molten tin in a float glass bath according to claim 1, wherein the floating type retractable graphite blocking ridge comprises a plurality of relatively movable blocking plates, the front ends of the blocking plates are blocking parts, the rear ends of the blocking plates are provided with connecting rods, and the connecting rods of the plurality of blocking plates are supported by the supporting rods.
5. The tin bath convection blocking device for float glass according to claim 4, wherein the baffle comprises a blocking portion, a connecting portion and a moving portion which are connected in sequence, the blocking portion, the connecting portion and the moving portion are formed into a zigzag structure, one side of the connecting portion abuts against the graphite lining layer, the lower edge of the moving portion is placed above the top end face of the tin bath, and the connecting rod is fixedly connected with the moving portion.
6. The tin convection barrier of float glass bath as claimed in claim 4, wherein the support bar is fixed on the positioning bracket, and the positioning bracket is fixed on the steel structure of the outer wall of the bath by welding.
7. The convection barrier of molten tin in a float glass bath according to claim 4, wherein the baffles in each set of floating retractable graphite dam have the lower edges of the barrier portions arranged in parallel.
8. The convection barrier of molten tin in a float glass bath according to claim 5, wherein the barrier portion and the moving portion are both of a plate-like structure and are disposed in parallel.
9. The float glass tin bath tin liquor convection barrier of claim 1, wherein the floating expandable graphite dam has a hollow channel therein, the hollow channel containing a metal having a density greater than tin liquor.
10. The convection barrier of molten tin in a float glass bath according to any one of claims 1 to 9, wherein the inner portion of the floating expandable graphite dam is further provided with a cooling and/or heating device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921324981.XU CN209890485U (en) | 2019-08-15 | 2019-08-15 | Tin liquid convection blocking device for float glass tin bath |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921324981.XU CN209890485U (en) | 2019-08-15 | 2019-08-15 | Tin liquid convection blocking device for float glass tin bath |
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| Publication Number | Publication Date |
|---|---|
| CN209890485U true CN209890485U (en) | 2020-01-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921324981.XU Expired - Fee Related CN209890485U (en) | 2019-08-15 | 2019-08-15 | Tin liquid convection blocking device for float glass tin bath |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112939429A (en) * | 2021-03-15 | 2021-06-11 | 四川虹科创新科技有限公司 | Tin bath and glass production line |
| CN115583784A (en) * | 2022-07-13 | 2023-01-10 | 沭阳县弘阳玻璃科技有限公司 | Glass plate manufacturing equipment and processing method thereof |
-
2019
- 2019-08-15 CN CN201921324981.XU patent/CN209890485U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112939429A (en) * | 2021-03-15 | 2021-06-11 | 四川虹科创新科技有限公司 | Tin bath and glass production line |
| CN115583784A (en) * | 2022-07-13 | 2023-01-10 | 沭阳县弘阳玻璃科技有限公司 | Glass plate manufacturing equipment and processing method thereof |
| CN115583784B (en) * | 2022-07-13 | 2023-12-22 | 沭阳县弘阳玻璃科技有限公司 | Glass plate manufacturing equipment and processing method thereof |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200103 Termination date: 20210815 |