CN112794628A - Tin bath device - Google Patents
Tin bath device Download PDFInfo
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- CN112794628A CN112794628A CN202110050680.8A CN202110050680A CN112794628A CN 112794628 A CN112794628 A CN 112794628A CN 202110050680 A CN202110050680 A CN 202110050680A CN 112794628 A CN112794628 A CN 112794628A
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- tin bath
- valve
- partition
- cover
- pipeline
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B18/00—Shaping glass in contact with the surface of a liquid
- C03B18/02—Forming sheets
- C03B18/16—Construction of the float tank; Use of material for the float tank; Coating or protection of the tank wall
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B18/00—Shaping glass in contact with the surface of a liquid
- C03B18/02—Forming sheets
- C03B18/20—Composition of the atmosphere above the float bath; Treating or purifying the atmosphere above the float bath
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- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Molten Solder (AREA)
Abstract
The utility model relates to a molten tin bath device, including the molten tin bath cover, set up a plurality of first division boards and a plurality of second division boards inside this molten tin bath cover, a plurality of first division boards extend and set up along the left and right direction interval of this molten tin bath cover along the fore-and-aft direction of molten tin bath cover, a plurality of second division boards extend and set up along the fore-and-aft direction interval of this molten tin bath cover along the left and right direction of molten tin bath cover, in order to inject a plurality of partition regions, and also include the mixing line that sets up with every partition region one-to-one, the first pipeline, the second pipeline, and can carry on the first valve and the second valve that the aperture size adjusted; the inlet end of the first pipeline is used for being communicated with a hydrogen source, the outlet end of the first pipeline is used for being communicated with the inlet end of the mixing pipeline, and the first valve is arranged on the first pipeline; the inlet end of the second pipeline is used for being communicated with a nitrogen source, the outlet end of the second pipeline is used for being communicated with the inlet end of the mixing pipeline, and a second valve is arranged on the second pipeline; the outlet end of the mixing line is used for communicating with the separation area.
Description
Technical Field
The disclosure relates to the technical field of substrate glass, in particular to a tin bath device.
Background
The tin bath is a forming device for producing flat glass by a float method. The main structure is a groove body which is made of refractory materials and is provided with a top cover, and a metal shell is coated outside the groove body. The molten glass flows into the molten tin bath through the runner, floats on the molten tin, and forms a glass belt with uniform thickness, flat surface and nearly mechanical polishing surface due to surface tension. The whole tank body has good tightness, and the tank space is filled with nitrogen and hydrogen as protective gas to prevent the tin liquid from being oxidized.
In the prior art, the introduction mode of the tin bath protective gas of the glass production line cannot adjust the longitudinal and transverse protective gas quantity and the proportion of the protective gas (nitrogen and hydrogen) of the glass strip. Specifically, the flow of the protective gas in the tin bath is only dependent on production experience, which causes waste of nitrogen and hydrogen; in addition, the bare tin leakage liquid level in the tin bath and the covering surface of the glass belt can only be introduced with protective gas with the same proportion at present, so that the generation of tin ash and tin drops is aggravated to a certain extent, and the reduction of the yield of glass and the waste of tin liquid are caused.
Disclosure of Invention
The utility model aims at providing a molten tin bath device, this molten tin bath device can avoid the waste of nitrogen, hydrogen to can reduce tin ash, the production of tin drop, improve the glass yields and reduce the waste of tin liquid.
In order to achieve the above object, the present disclosure provides a tin bath device, including a tin bath cover, a plurality of first partition plates and a plurality of second partition plates, where the plurality of first partition plates extend along a front-rear direction of the tin bath cover and are arranged at intervals along a left-right direction of the tin bath cover, the plurality of second partition plates extend along the left-right direction of the tin bath cover and are arranged at intervals along the front-rear direction of the tin bath cover, the plurality of first partition plates and/or the plurality of second partition plates define a plurality of partition areas having open lower ends and being used for being opposite to tin liquid in a tin liquid bath, and the tin bath device further includes a mixing pipeline, a first pipeline, a second pipeline, and a first valve and a second valve, which are arranged in one-to-one correspondence with each partition area, and are capable of adjusting an opening size; the inlet end of the first pipeline is used for being communicated with a hydrogen source, the outlet end of the first pipeline is used for being communicated with the inlet end of the mixing pipeline, and the first valve is arranged on the first pipeline; the inlet end of the second pipeline is used for being communicated with a nitrogen source, the outlet end of the second pipeline is used for being communicated with the inlet end of the mixing pipeline, and the second valve is arranged on the second pipeline; and the outlet ends of the mixing pipelines are respectively communicated with the partition areas in a one-to-one correspondence manner.
Optionally, the plurality of partition regions include a middle partition region group arranged to face the glass ribbon flowing into the upper surface of the molten tin, and an edge partition region group arranged to face the molten tin outside the left and right edges of the glass ribbon, and when the molten tin bath apparatus is in an operating state, the partition regions satisfy: the first valve and the second valve corresponding to each separation region in the middle separation region group are respectively in a closed state and an open state; the first valve and the second valve corresponding to each of the partition regions in the edge partition region group are in an open state.
Optionally, the molten tin bath device further includes a pressure detection unit and a controller, the pressure detection unit, the first valve and the second valve are all electrically connected to the controller, each of the separation regions is provided with the pressure detection unit, and when the molten tin bath device is in a working state, the molten tin bath device satisfies: when a first pressure detected by the pressure detection unit corresponding to any one of the separation regions in the side separation region group is greater than a second pressure detected by the pressure detection unit corresponding to any one of the separation regions in the middle separation region group, the controller adjusts the opening degrees of the first valve and the second valve corresponding to the separation region in the side separation region group and the first valve and the second valve corresponding to the separation region in the middle separation region group, so that the first pressure is less than the second pressure.
Optionally, when the molten tin bath device is in an operating state, the following conditions are also met: in the middle divided region group or the side divided region group, when a third pressure detected by the pressure detection unit corresponding to the divided region located at the rear is lower than a fourth pressure detected by the pressure detection unit corresponding to the divided region located at the front, the controller adjusts the opening degrees of the first valve and the second valve corresponding to the divided region located at the rear and the first valve and the second valve corresponding to the divided region located at the front so that the third pressure is higher than the fourth pressure.
Optionally, the upper edges of the first partition plate and the second partition plate are abutted against the inner side of the top wall of the tin bath cover, and the lower edges of the first partition plate and the second partition plate are abutted against the upper surface of the top cover brick at the open end of the tin bath cover; at least part of the front edge of the first partition plate abuts against the inner side of the front side wall of the tin groove cover, and at least part of the rear edge of the first partition plate abuts against the inner side of the rear side wall of the tin groove cover; the left edge of the second separation plate is abutted against the inner side of the left side wall of the tin groove cover, and the right edge of the second separation plate is abutted against the inner side of the right side wall of the tin groove cover.
Optionally, the tin bath cover includes a first cover and a second cover along the front-back direction, the size of the first cover along the left-right direction is greater than the size of the second cover along the left-right direction, and the first partition plate includes a first portion and a second portion, the first portion is disposed in the first cover, the second portion is disposed in the second cover, and the distance between the two first partition plates along the left-most and right-most sides in the first portion is greater than the distance between the two first partition plates along the left-most and right-most sides in the second portion in the left-right direction.
Optionally, the second partition plates are all disposed in the first cover body.
Optionally, the molten tin bath device further comprises a controller, each of the separation regions is further provided with a temperature measuring unit and an electric heating unit, the temperature measuring units and the electric heating units are electrically connected with the controller, and when the temperature measuring units detect that the temperature of the corresponding separation region is lower than a preset temperature, the controller controls the corresponding electric heating units to heat up the separation region.
Optionally, the molten tin bath device further comprises a mixer, which is arranged in one-to-one correspondence to the mixing pipeline, and is used for mixing the hydrogen gas and the nitrogen gas.
Optionally, the molten tin bath device further includes a first flow meter and a second flow meter, the first flow meter is disposed on an outlet side of the first valve, and the second flow meter is disposed on an outlet side of the second valve.
In the above technical scheme, can be with the inside of tin groove cover along the front and back through setting up a plurality of first division boards and second division board, and left right direction divides into the open partition region of a plurality of lower extremes, every partition region is open lower extreme and all is used for setting up with the tin liquid in the below tin cistern relatively, and, every partition region one-to-one is provided with the mixed pipeline, first pipeline, the second pipeline, and can carry out the first valve and the second valve that aperture size was adjusted, first pipeline and second pipeline let in hydrogen and nitrogen gas respectively and all communicate with the mixed pipeline, and the mixed pipeline communicates with the partition region who corresponds. By adjusting the opening degree of the first valve in the first pipeline and the second valve in the second pipeline corresponding to the corresponding separation area, the flow rates of the nitrogen and the hydrogen introduced into the separation area can be adjusted, and the proportion of the nitrogen and the hydrogen can also be adjusted.
In other words, the tin bath device can adjust the flow of the protective gas and the proportion along the front-back direction and the left-right direction, avoid the waste of nitrogen and hydrogen, reduce the generation of tin ash and tin drops, improve the yield of glass and reduce the waste of tin liquid.
Additional features and advantages of the disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:
FIG. 1 is a schematic view of a tin bath apparatus according to an embodiment of the present disclosure;
fig. 2 is a plan view of a tin bath cover of a tin bath device according to an embodiment of the present disclosure.
Description of the reference numerals
1 mixing line 11 mixer
2 first pipeline 21 first valve
3 second line 31 second valve
4 pressure detection unit 5 controller
6 first flow meter 7 second flow meter
8 Metal hose
10 tin bath cover 101 first partition plate
1011 first part 1012 second part
102 second separation plate 103 middle separation area group
104 side separation zone group 105 top wall
106 roof brick 107 front side wall
108 rear side wall 109 left side wall
110 right side wall 120 first cover
130 second cover body 140 temperature measuring unit
100 separated area 200 tin groove body
201 bottom brick
Detailed Description
The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.
In the present disclosure, without being stated to the contrary, the use of the terms of orientation such as "upper and lower" means that the tin bath device in the present disclosure is defined as upper and lower in the normal use state, and can be specifically referred to as shown in fig. 1; the use of directional terms such as "front and back" refers to the direction of flow of the ribbon, i.e., the length of the ribbon, and may be specifically referred to in FIG. 1; the use of directional words such as "left and right" refers to the width of the ribbon and may be specifically referred to in FIG. 2; use of directional words such as "inner and outer" refers to the inner and outer of a particular structural profile; the use of terms such as "first" and "second" is intended only to distinguish one element from another, and is not intended to be sequential or important.
As shown in fig. 1 to 2, the present disclosure provides a tin bath apparatus including a tin bath cover 10, a plurality of first partition plates 101 and a plurality of second partition plates 102 disposed inside the tin bath cover 10, the plurality of first partition plates 101 extending in a front-rear direction of the tin bath cover 10 and being disposed at intervals in a left-right direction of the tin bath cover 10, the plurality of second partition plates 102 extending in the left-right direction of the tin bath cover 10 and being disposed at intervals in the front-rear direction of the tin bath cover 10, the plurality of first partition plates 101 and/or the plurality of second partition plates 102 defining a plurality of partition areas 100 having lower ends opened and being configured to be opposed to tin liquid in the tin bath.
The tin bath device also comprises a mixing pipeline 1, a first pipeline 2, a second pipeline 3, a first valve 21 and a second valve 31 which can be used for adjusting the opening degree, wherein the mixing pipeline 1, the first pipeline 2 and the second pipeline 3 are arranged in one-to-one correspondence with each separation area 100; the inlet end of the first pipeline 2 is used for being communicated with a hydrogen source, the outlet end of the first pipeline 2 is used for being communicated with the inlet end of the mixing pipeline 1, and the first valve 21 is arranged on the first pipeline 2; the inlet end of the second pipeline 3 is used for being communicated with a nitrogen source, the outlet end of the second pipeline 3 is used for being communicated with the inlet end of the mixing pipeline 1, and a second valve 31 is arranged on the second pipeline 3; the outlet ends of the mixing pipes 1 are in one-to-one correspondence with the partition areas 100, respectively.
The molten tin bath (not shown) is surrounded by bottom bricks 201 of the molten tin bath main body 200, the molten tin is set in the molten tin bath, and the molten tin bath main body 200 is used for sealing and matching with the molten tin bath cover 10.
In the above technical solution, the interior of the tin bath cover 10 can be divided into a plurality of partition areas 100 with open lower ends along the front-back direction and the left-right direction by arranging the plurality of first partition plates 101 and the plurality of second partition plates 102, each partition area 100 is provided with an open lower end for being arranged opposite to the tin liquid in the tin bath below, furthermore, each partition area 100 is provided with a mixing pipeline 1, a first pipeline 2, a second pipeline 3, and a first valve 21 and a second valve 31 which can adjust the opening degree, the first pipeline 2 and the second pipeline 3 are respectively introduced with hydrogen and nitrogen and are communicated with the mixing pipeline 1, and the mixing pipeline 1 is communicated with the corresponding partition area 100. By adjusting the opening of the first valve 21 in the first pipeline 2 and the second valve 31 in the second pipeline 3 corresponding to the corresponding separation area 100, the flow rates of the nitrogen and the hydrogen introduced into the separation area 100 can be adjusted, and the ratio of the nitrogen and the hydrogen can also be adjusted.
In other words, the tin bath device can adjust the flow of the protective gas and the proportion along the front-back direction and the left-right direction, avoid the waste of nitrogen and hydrogen, reduce the generation of tin ash and tin drops, improve the yield of glass and reduce the waste of tin liquid.
In one embodiment, referring to fig. 2, the plurality of partition areas 100 includes a middle partition area group 103 for being disposed opposite to the glass ribbon flowing into the upper surface of the molten tin, and side partition area groups 104 for being disposed opposite to the molten tin outside the left and right side edges of the glass ribbon, and satisfies, when the tin bath apparatus is in an operating state: the first valve 21 and the second valve 31 corresponding to each partition area 100 in the middle partition area group 103 are respectively in a closed state and an open state; the first valve 21 and the second valve 31 corresponding to each of the divided regions 100 in the side divided region group 104 are in an open state.
It should be noted that the introduced hydrogen is used to reduce tin oxide generated by oxidation reaction of the tin liquid, and the introduced nitrogen is used to pressurize the inside of the tin bath device so that the pressure inside the tin bath device is greater than atmospheric pressure, and the outside air can be prevented from entering the inside of the tin bath device while the oxygen inside the tin bath device is discharged.
In this embodiment, the glass ribbon covers a portion of the molten tin, and the molten tin is substantially free from oxidation, and no hydrogen gas needs to be introduced into the middle partition region group 103 opposite to the glass ribbon, so that the amount of hydrogen gas can be effectively reduced; however, in the portion of the glass not covered by the molten tin, the molten tin still undergoes an oxidation reaction, and hydrogen still needs to be introduced into the edge separation region group 104 disposed opposite to the exposed molten tin, and in consideration of the danger of explosion caused by the single introduction of hydrogen into the edge separation region group 104, nitrogen still needs to be introduced into the edge separation region group 104.
In one embodiment, referring to fig. 1 and 2, the tin bath device further includes a pressure detection unit 4 and a controller 5, the pressure detection unit 4, the first valve 21 and the second valve 31 are all electrically connected to the controller 5, each partition area 100 is provided with the pressure detection unit 4, and when the tin bath device is in an operating state, the following conditions are satisfied: when the first pressure detected by the pressure detection unit 4 corresponding to any one of the divided regions 100 in the side divided region group 104 is higher than the second pressure detected by the pressure detection unit 4 corresponding to any one of the divided regions 100 in the middle divided region group 103, the controller 5 adjusts the opening degrees of the first valve 21 and the second valve 31 corresponding to the divided region 100 in the side divided region group 104 and the first valve 21 and the second valve 31 corresponding to the divided region 100 in the middle divided region group 103 so that the first pressure is lower than the second pressure.
In this embodiment, in short, the pressure of any one of the partition regions 100 in the middle partition region group 103 is made greater than the pressure of any one of the partition regions 100 in the side partition region group 104. The design is made in such a way that the pressure of the middle part is higher than that of the side part in consideration of the higher oxygen content of the side part, so that the oxygen of the side part can be prevented from flowing to the middle part.
As shown in fig. 1 and 2, when the molten tin bath device is in an operating state, the following requirements are also satisfied: in the middle divided region group 103 or the side divided region group 104, when the third pressure detected by the pressure detection unit 4 corresponding to the rear divided region 100 is lower than the fourth pressure detected by the pressure detection unit 4 corresponding to the front divided region 100, the controller 5 adjusts the opening degrees of the first valve 21 and the second valve 31 corresponding to the rear divided region 100 and the first valve 21 and the second valve 31 corresponding to the front divided region 100 so that the third pressure is higher than the fourth pressure.
In this embodiment, in the middle partition group 103 or the side partition group 104, the reason why the pressure of the shielding gas in the rear partition 100 is made higher than the pressure of the shielding gas in the front partition 100 is that: the temperature of the ribbon is gradually reduced during the front-to-back flow of the ribbon, as is the temperature of the front-to-back separation region 100; because of the temperature in the place ahead is high, the difficult separation out of oxygen in the tin liquid, the back temperature is low, oxygen precipitates easily, and then can the tin liquid can take place oxidation reaction, and the pressure through making the guard gas of the partition region 100 at back is greater than the guard gas's of the partition region 100 in the place ahead pressure, even the oxygen is precipitated to the low temperature tin liquid in back, this oxygen of precipitating also can flow under the effect of front and back guard gas pressure difference, also follow the big back of pressure and flow to the little place ahead of pressure, and the temperature in place ahead is higher, the oxygen that flows in this place ahead also can be dissolved in the tin liquid, and then avoid the tin liquid to take place oxidation reaction.
Alternatively, as shown with reference to fig. 1 and 2, the upper edges of the first and second divider panels 101 and 102 each abut the inside of the top wall 105 of the tin can 10, and the lower edges of the first and second divider panels 101 and 102 each abut the upper surface of the top cover tile 106 at the open end of the tin can 10. At least part of the front edge of the first divider plate 101 abuts the inside of the front side wall 107 of the tin can 10 and at least part of the rear edge of the first divider plate 101 abuts the inside of the rear side wall 108 of the tin can 10; the left edge of the second partition plate 102 abuts the inside of the left side wall 109 of the tin bath cover 10, and the right edge of the second partition plate 102 abuts the inside of the right side wall 110 of the tin bath cover 10, thereby partitioning the tin bath cover 10 into a plurality of partition regions 100 in the front-rear left-right direction. Of course, the present disclosure does not limit the manner in which the separation region 100 is formed.
Further, the top cover brick 106 has a plurality of fine vent holes (not shown) formed in the vertical direction, and the shielding gas in the partitioned area 100 flows through the vent holes to the glass ribbon positioned on the upper surface of the molten tin or to the bare molten tin not covered by the glass ribbon.
Specifically, referring to fig. 2, the tin bath cover 10 includes a first cover 120 and a second cover 130 in the front-rear direction, the size of the first cover 120 in the left-right direction is larger than that of the second cover 130 in the left-right direction, the plurality of first partition plates 101 include a first portion 1011 and a second portion 1012, the first portion 1011 is disposed in the first cover 120, the second portion 1012 is disposed in the second cover 130, and the distance between the two leftmost and rightmost first partition plates 101 in the first portion 1011 in the left-right direction is larger than the distance between the two leftmost and rightmost first partition plates 101 in the second portion 1012 in the left-right direction.
In this embodiment, the glass ribbon is shrunk in the left-right direction in the second cover 130, and in consideration of the problem of convenience in molding after shrinking the glass ribbon, the distance in the left-right direction between the two leftmost and rightmost first partition boards 101 in the first portion 1011 is made larger than the distance in the left-right direction between the two leftmost and rightmost first partition boards 101 in the second portion 1012, and the two leftmost and rightmost partition boards 101 in the second portion 1012 can provide a good guiding function for the shrunk glass ribbon, thereby facilitating molding of the glass ribbon.
In another embodiment, referring to fig. 2, a plurality of second partitions 102 are disposed in the first housing 120, and no second partitions 102 are disposed in the second housing 130 because the width of the glass sheet tends to be stable when the glass sheet passes through the section of the second housing 130, and the top cover bricks 106 are disposed with partition wall means (not shown) and thus no second partitions 102 are disposed.
In one embodiment, referring to fig. 1, the tin bath apparatus further includes a controller 5, a temperature measuring unit 140 and an electric heating unit are further disposed in each of the divided areas 100, the temperature measuring unit 140 and the electric heating unit are both electrically connected to the controller 5, and when the temperature measuring unit 140 detects that the temperature of the corresponding divided area 100 is lower than a preset temperature, the controller 5 controls the corresponding electric heating unit to heat the divided area 100.
In this embodiment, it can be known from the above that the pressure of the shielding gas in the middle partition area group 103 is greater than the pressure of the shielding gas in the side partition area group 104, a large amount of shielding gas is input into the middle partition area group 103, the shielding gas is often a gas with a lower temperature, after a large amount of shielding gas is introduced into the middle partition area group 103, the temperature of the middle partition area group 103 is also reduced, and the inside of the tin bath device needs a high temperature condition, so for example, when the temperature measurement unit 140 detects that the temperature of one of the partition areas 100 in the middle partition area group 103 is lower than a preset temperature, the controller controls the corresponding electric heating unit to heat the partition area, so as to meet the high temperature requirement.
In one embodiment, referring to fig. 1, the molten tin bath apparatus further includes mixers 11 disposed in one-to-one correspondence with the mixing lines 1 for mixing hydrogen and nitrogen. By providing the mixer 11, the mixing of the hydrogen and nitrogen can be made more uniform.
Optionally, the molten tin bath device further comprises a first flow meter 6 and a second flow meter 7, wherein the first flow meter 6 is arranged on the outlet side of the first valve 21, and the second flow meter 7 is arranged on the outlet side of the second valve 31. The first flow meter 6 and the second flow meter 7 are provided to visually display the amounts of hydrogen and nitrogen introduced. For example, the first flow meter 6 and the second flow meter 7 may be configured as remote flow meters, the remote flow meters may be wirelessly connected to the controller 5, and the controller 5 may be electrically connected to the display to visually display the flowing amount of the hydrogen gas in each first pipeline 2 and the flowing amount of the nitrogen gas in each second pipeline 3, so as to facilitate the adjustment of the flow rate by the operator.
In another embodiment, referring to fig. 1, the molten tin bath apparatus further includes a metal hose 8, one end of the metal hose 8 is connected to the outlet end of the mixing pipe 1, and the other end is used for communicating with the inside of the partitioned area 100. Through setting up this metal collapsible tube 8, guaranteeing not to take place under the condition of high temperature harm, can improve the convenience of installation.
The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.
It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.
In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.
Claims (10)
1. A tin bath device is characterized by comprising a tin bath cover (10), a plurality of first partition plates (101) and a plurality of second partition plates (102) which are arranged inside the tin bath cover (10), wherein the first partition plates (101) extend along the front-back direction of the tin bath cover (10) and are arranged at intervals along the left-right direction of the tin bath cover (10), the second partition plates (102) extend along the left-right direction of the tin bath cover (10) and are arranged at intervals along the front-back direction of the tin bath cover (10), the first partition plates (101) and/or the second partition plates (102) define a plurality of partition areas (100) with lower ends opened and used for being opposite to tin liquid in a tin bath,
the tin bath device also comprises mixing pipelines (1), first pipelines (2), second pipelines (3) and first valves (21) and second valves (31) which can be used for adjusting the opening degree, wherein the mixing pipelines, the first pipelines and the second pipelines are arranged in one-to-one correspondence to each separation area (100); the inlet end of the first pipeline (2) is used for being communicated with a hydrogen source, the outlet end of the first pipeline (2) is used for being communicated with the inlet end of the mixing pipeline (1), and the first valve (21) is arranged on the first pipeline (2); the inlet end of the second pipeline (3) is used for being communicated with a nitrogen source, the outlet end of the second pipeline (3) is used for being communicated with the inlet end of the mixing pipeline (1), and the second valve (31) is arranged on the second pipeline (3); the outlet ends of the mixing pipelines (1) are respectively communicated with the partition areas (100) in a one-to-one correspondence mode.
2. A molten tin bath apparatus according to claim 1, wherein the plurality of divided regions (100) includes a middle divided region group (103) for being disposed opposite to the molten glass ribbon flowing into the upper surface of the molten tin, and side divided region groups (104) for being disposed opposite to the molten tin outside the left and right side edges of the molten glass ribbon, and when the molten tin bath apparatus is in an operating state, satisfy: the first valve (21) and the second valve (31) corresponding to each separation region (100) in the middle separation region group (103) are respectively in a closed state and an open state; the first valve (21) and the second valve (31) corresponding to each of the partition regions (100) in the edge partition region group (104) are in an open state.
3. A molten tin bath apparatus according to claim 2, characterized in that the apparatus further comprises a pressure detection unit (4) and a controller (5), the pressure detection unit (4), the first valve (21) and the second valve (31) are all electrically connected to the controller (5), the pressure detection unit (4) is disposed in each of the separation areas (100), and when the apparatus is in an operating state, the apparatus satisfies:
when a first pressure detected by the pressure detection means (4) corresponding to any one of the partition regions (100) in the side partition region group (104) is greater than a second pressure detected by the pressure detection means (4) corresponding to any one of the partition regions (100) in the middle partition region group (103),
the controller (5) adjusts the opening degrees of the first valve (21) and the second valve (31) corresponding to the separation region (100) in the side separation region group (104) and the opening degrees of the first valve (21) and the second valve (31) corresponding to the separation region (100) in the middle separation region group (103) so that the first pressure is lower than the second pressure.
4. A molten tin bath apparatus according to claim 3, wherein, when the molten tin bath apparatus is in an operating state, it further satisfies:
in the middle divided region group (103) or the side divided region group (104), when a third pressure detected by the pressure detection unit (4) corresponding to the divided region (100) located rearward is smaller than a fourth pressure detected by the pressure detection unit (4) corresponding to the divided region (100) located forward,
the controller (5) adjusts the opening degrees of the first valve (21) and the second valve (31) corresponding to the rear separation region (100) and the opening degrees of the first valve (21) and the second valve (31) corresponding to the front separation region (100) so that the third pressure is greater than the fourth pressure.
5. A tin bath arrangement according to any of the claims 1-4, characterized in that the upper edges of the first and second partition plates (101, 102) are each in abutment with the inside of the top wall (105) of the tin bath cover (10), and the lower edges of the first and second partition plates (101, 102) are each in abutment with the upper surface of the top cover brick (106) at the open end of the tin bath cover (10);
at least part of the front edge of the first partition plate (101) abuts the inside of the front side wall (107) of the tin groove cover (10), and at least part of the rear edge of the first partition plate (101) abuts the inside of the rear side wall (108) of the tin groove cover (10); the left edge of the second partition plate (102) abuts against the inside of the left side wall (109) of the tin groove cover (10), and the right edge of the second partition plate (102) abuts against the inside of the right side wall (110) of the tin groove cover (10).
6. A tin bath arrangement according to claim 5, characterized in that the tin bath cover (10) comprises a first cover (120) and a second cover (130) in the front-rear direction, the first cover (120) having a larger dimension in the left-right direction than the second cover (130), the plurality of first partition walls (101) comprises a first portion (1011) and a second portion (1012), the first portion (1011) is arranged inside the first cover (120), the second portion (1012) is arranged inside the second cover (130), and the distance in the left-right direction between the two leftmost and rightmost first partition walls (101) of the first portion (1011) is larger than the distance in the left-right direction between the two leftmost and rightmost first partition walls (101) of the second portion (1012).
7. A molten tin bath apparatus according to claim 6, wherein a plurality of the second partition plates (102) are each provided in the first enclosure (120).
8. A molten tin bath device according to claim 1 or 2, characterized in that the molten tin bath device further comprises a controller (5), each of the divided areas (100) is further provided with a temperature measuring unit (140) and an electric heating unit, the temperature measuring unit (140) and the electric heating unit are both electrically connected with the controller (5), and when the temperature measuring unit (140) detects that the temperature of the corresponding divided area (100) is lower than a preset temperature, the controller (5) controls the corresponding electric heating unit to heat the divided area (100).
9. A tin bath arrangement according to any of the claims from 1 to 4, characterised in that it further comprises mixers (11) arranged in one-to-one correspondence with the mixing lines (1) for mixing hydrogen and nitrogen.
10. A molten tin bath arrangement according to any one of claims 1-4, characterized in that the molten tin bath arrangement further comprises a first flow meter (6) and a second flow meter (7), the first flow meter (6) being arranged on the outlet side of the first valve (21) and the second flow meter (7) being arranged on the outlet side of the second valve (31).
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| CN113582516A (en) * | 2021-07-29 | 2021-11-02 | 河南旭阳光电科技有限公司 | Tin bath and cleaning method thereof |
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| CN112794628B (en) | 2022-07-19 |
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Application publication date: 20210514 Assignee: Hunan Xinghuai New Material Technology Co.,Ltd. Assignor: DONGXU OPTOELECTRONIC TECHNOLOGY Co.,Ltd. Contract record no.: X2022110000065 Denomination of invention: Bath unit Granted publication date: 20220719 License type: Common License Record date: 20221101 |