CN220867274U - Tin adding device for tin bath in float glass production line - Google Patents
Tin adding device for tin bath in float glass production line Download PDFInfo
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- CN220867274U CN220867274U CN202322334325.0U CN202322334325U CN220867274U CN 220867274 U CN220867274 U CN 220867274U CN 202322334325 U CN202322334325 U CN 202322334325U CN 220867274 U CN220867274 U CN 220867274U
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- melting chamber
- chamber
- remelting
- primary melting
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- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 title claims abstract description 272
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 22
- 239000005329 float glass Substances 0.000 title claims abstract description 20
- 238000002844 melting Methods 0.000 claims abstract description 127
- 230000008018 melting Effects 0.000 claims abstract description 126
- 239000007788 liquid Substances 0.000 claims abstract description 67
- 238000010438 heat treatment Methods 0.000 claims abstract description 38
- 238000009413 insulation Methods 0.000 claims abstract description 26
- 239000010410 layer Substances 0.000 claims description 36
- 239000011241 protective layer Substances 0.000 claims description 19
- HMDDXIMCDZRSNE-UHFFFAOYSA-N [C].[Si] Chemical compound [C].[Si] HMDDXIMCDZRSNE-UHFFFAOYSA-N 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 13
- 230000008569 process Effects 0.000 abstract description 11
- 230000017525 heat dissipation Effects 0.000 abstract description 2
- 239000011521 glass Substances 0.000 description 7
- 239000007789 gas Substances 0.000 description 4
- 238000006124 Pilkington process Methods 0.000 description 3
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 3
- 229910010271 silicon carbide Inorganic materials 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000000137 annealing Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- QHGNHLZPVBIIPX-UHFFFAOYSA-N tin(ii) oxide Chemical compound [Sn]=O QHGNHLZPVBIIPX-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007496 glass forming Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000006060 molten glass Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Manufacture And Refinement Of Metals (AREA)
Abstract
The present disclosure relates to a tin adding device for a tin bath in a float glass production line, the tin adding device comprising: the box body is internally provided with a tin melting chamber, a heat insulation layer which divides the tin melting chamber into a primary melting chamber and a secondary melting chamber along a first direction is arranged in the tin melting chamber, a tin liquid flow hole is formed in the heat insulation layer, a cover plate is arranged at the tin liquid flow hole in an openable manner, a tin adding port and a tin outlet which are communicated with the primary melting chamber and the secondary melting chamber are respectively arranged on the primary melting chamber and the secondary melting chamber in a corresponding manner, a movable baffle is arranged at the tin adding port in an openable manner, a valve is arranged at the tin outlet, the tin adding port is arranged at a position higher than the surface of tin liquid in the primary melting chamber, and the tin outlet is arranged at a position lower than the surface of tin liquid in the secondary melting chamber; the tin liquid channel is obliquely arranged at the tin outlet downwards, so that tin liquid in the remelting chamber flows out of the tin liquid channel through the tin outlet when the valve is opened; and the heating piece comprises a first heating piece arranged on the inner wall of the primary melting chamber and a second heating piece arranged on the inner wall of the remelting chamber. The tin adding device can reduce heat dissipation in the tin ingot adding process.
Description
Technical Field
The present disclosure relates to the technical field of float glass production, and in particular, to a tin adding device for a tin bath in a float glass production line.
Background
The float process is the most commonly used forming method in glass production processes. In the float process, molten glass flows from a glass furnace into a tin bath, is laid out, flattened, hardened and cooled under the action of gravity, surface tension and external tensile stress, and then enters an annealing furnace through a transition roller table for annealing treatment.
In the float process, the stability of the molten tin in the molten tin bath is a key factor for glass forming, however, the molten tin is extremely easy to oxidize to generate tin oxide and stannous oxide under a high-temperature environment, commonly called as tin ash, and therefore, defects at the lower part of the glass and the liquid level of the molten tin can be reduced. Particularly for ultra-thin glass with a thickness of less than 1.1mm, whether the tin liquid amount is stable has an important influence on the physical properties of the product, so that the control of the tin liquid amount is important. In actual production, in order to keep the stability of the tin liquid amount, tin needs to be periodically added into a tin bath, and the tin adding method adopted in the related art is to melt a tin ingot in a container in advance and then directly add the melted tin liquid into the tin bath.
Disclosure of utility model
It is an object of the present disclosure to provide a tin adding apparatus for a tin bath in a float glass production line, which divides a tin melting chamber into a primary melting chamber and a re-melting chamber through a heat insulating layer, and then adds a tin ingot into the primary melting chamber through a tin adding port, wherein heat dissipation during the tin ingot addition process can be reduced due to a relatively low temperature of the primary melting chamber.
In order to achieve the above object, the present disclosure provides a tin adding device for a tin bath in a float glass production line, the tin adding device comprising: the tin melting device comprises a box body, wherein a tin melting chamber is arranged in the box body, a heat insulation layer is arranged in the tin melting chamber, the heat insulation layer divides the tin melting chamber into a primary melting chamber and a secondary melting chamber along a first direction, a tin liquid flow hole is formed in the heat insulation layer, a cover plate is arranged at the tin liquid flow hole in an openable manner, a tin adding port communicated with the interior of the primary melting chamber is arranged on the primary melting chamber, a movable baffle is arranged at the tin adding port in an openable manner, a tin outlet communicated with the interior of the primary melting chamber is arranged on the secondary melting chamber, and a valve is arranged at the tin outlet, wherein the tin adding port is arranged at a position higher than the tin surface in the primary melting chamber, and the tin outlet is arranged at a position lower than the tin surface in the secondary melting chamber; the tin liquid channel is obliquely arranged at the tin outlet, so that tin liquid in the remelting chamber flows out of the tin liquid channel through the tin outlet when the valve is opened; and the heating piece comprises a first heating piece and a second heating piece, the first heating piece is arranged on the inner wall of the primary melting chamber, and the second heating piece is arranged on the inner wall of the remelting chamber.
Optionally, the thermal insulation layer comprises a first protective layer, an intermediate thermal insulation layer and a second protective layer arranged along a first direction, wherein the first protective layer is located in the primary melting chamber, and the second protective layer is located in the remelting chamber.
Optionally, the apron rotationally sets up one side of keeping away from of first inoxidizing coating the intermediate heat preservation, and be connected with the push rod on the apron, the through-hole has been seted up along the second direction on the primary melting chamber, the setting position of through-hole is used for being higher than tin liquid surface in the primary melting chamber, the push rod passes through the through-hole extends to outside the primary melting chamber, and the push rod can follow the through-hole removes in order to drive the apron is opened or is closed the tin liquid through-hole, wherein, the second direction perpendicular to the first direction.
Optionally, the apron rotationally sets up the second inoxidizing coating keep away from one side of intermediate heat preservation, and be connected with the push rod on the apron, the through-hole has been seted up along the second direction on the remelting chamber, the setting position of through-hole is used for being higher than tin liquid surface in the remelting chamber, the push rod passes through the through-hole extends to outside the remelting chamber, and the push rod can follow the through-hole removes in order to drive the apron is opened or is closed the tin liquid through-hole, wherein, the second direction perpendicular to the first direction.
Optionally, at least one of the first heating element and the second heating element is configured as a resistance wire or a silicon carbide rod.
Optionally, the tin adding device further comprises an air inlet, the air inlet comprises a first air inlet and a second air inlet which are communicated with external shielding gas, the first air inlet is formed in the primary melting chamber, the setting position of the first air inlet is higher than the surface of tin liquid in the primary melting chamber, the second air inlet is formed in the remelting chamber, and the setting position of the second air inlet is higher than the surface of tin liquid in the remelting chamber.
Optionally, the tin adding device further comprises a temperature measuring part, a temperature control system and a control panel, wherein the control panel is arranged on the box body, the temperature measuring part comprises a first temperature measuring part arranged in the primary melting chamber and used for detecting the temperature in the primary melting chamber and a second temperature measuring part arranged in the remelting chamber and used for detecting the temperature in the remelting chamber, the first temperature measuring part and the second temperature measuring part are respectively electrically connected with the temperature control system, and the temperature control system is respectively electrically connected with the first heating part, the second heating part and the control panel.
Optionally, the working temperature range in the primary melting chamber is 300-350 ℃; and/or the operating temperature in the remelting chamber ranges from 800 ℃ to 1000 ℃.
Optionally, a roller is arranged at the bottom of the box body.
Optionally, a tin adding groove is further arranged at the tin adding opening, and the tin adding groove extends away from the box body.
According to the technical scheme, in the tin adding device for the tin bath in the float glass production line, the tin melting chamber is arranged in the box body outside the tin bath, the tin melting chamber is divided into the primary melting chamber and the remelting chamber with different temperatures according to different tin treatment stages by adopting the heat insulation layer, the primary melting chamber and the remelting chamber are heated to different temperatures through different heating pieces, so that tin ingots are initially melted in the primary melting chamber with relatively low temperature to obtain tin liquid, and then the tin liquid is further heated in the remelting chamber with relatively high temperature, and therefore the temperature of the tin liquid obtained after the temperature is basically consistent with the temperature of the tin liquid at the adding position in the tin bath, and when the tin liquid is added from the remelting chamber to the corresponding position in the tin bath, the added tin liquid and the tin liquid in the tin bath are uniform and consistent in temperature originally, convection current is not generated, and the forming quality of the glass surface can be improved.
In the process, the arrangement of the two independent chambers of the primary melting chamber and the remelting chamber avoids that the tin ingot directly enters into a high-temperature environment during adding, namely, the tin ingot firstly enters into the primary melting chamber with relatively low temperature and then enters into the remelting chamber with relatively high temperature during adding, so that heat loss during adding of the tin ingot can be reduced. In addition, because the tin liquid is easier to oxidize in a high-temperature environment, the tin ingot is added into the primary melting chamber with relatively low temperature, and then is introduced into the remelting chamber from the primary melting chamber for heating, so that the problem of massive oxidation caused by the fact that the tin ingot directly enters the high-temperature environment can be avoided. In addition, the tin ingot is added into the primary melting chamber with relatively low temperature, so that the damage to operators caused by tin liquid splashing in the tin ingot adding process can be further reduced.
Additional features and advantages of the present disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings are included to provide a further understanding of the disclosure, and are incorporated in and constitute a part of this specification, illustrate the disclosure and together with the description serve to explain, but do not limit the disclosure. In the drawings:
fig. 1 is a schematic perspective view of a tin adding device for a tin bath in a float glass production line of the present disclosure.
Description of the reference numerals
1-A box body; 11-a tin melting chamber; 111-a primary melting chamber; 112-a remelting chamber; 12-a tin adding port; 121-a tin adding tank; 13-a tin outlet; 14-air inlet; 141-a first air inlet; 142-a second air inlet; 15-a movable baffle; 2-tin liquid channels; 3-a heat insulation layer; 31-a first protective layer; 32-an intermediate heat-insulating layer; 33-a second protective layer; 4-tin flow through holes; 5-cover plate; 6-pushing rod; 7-opening; 8-a temperature measuring piece; 81-a first temperature measuring member; 82-a second temperature measurement member; 9-a control panel; 10-roller.
Detailed Description
Specific embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the disclosure, are not intended to limit the disclosure.
In the present disclosure, unless otherwise stated, terms such as "up and down" refer to up and down in the direction of gravity in actual use, corresponding to the up and down positions of the paper surface in fig. 1. In addition, with the surface of the control panel as the front, the first direction corresponds to the up-down direction of the paper surface in fig. 1, and the second direction corresponds to the left-right direction of the paper surface in fig. 1. In addition, "inner and outer" refer to "inner and outer" with respect to the outline of the corresponding component itself. Furthermore, the terms "first," "second," and the like, as used in this disclosure, are used for distinguishing one element from another and not for sequential or importance. Furthermore, in the following description, when referring to the drawings, the same reference numerals in different drawings denote the same or similar elements unless otherwise explained. The foregoing definitions are provided for the purpose of illustrating and explaining the present disclosure and should not be construed as limiting the present disclosure.
The present disclosure provides a tin adding apparatus for a tin bath in a float glass production line, as shown with reference to fig. 1, comprising: the tin melting device comprises a box body 1, wherein a tin melting chamber 11 is arranged in the box body 1, a heat insulation layer 3 is arranged in the tin melting chamber 11, the heat insulation layer 3 divides the tin melting chamber 11 into a primary melting chamber 111 and a secondary melting chamber 112 along a first direction, a tin liquid flow hole 4 is formed in the heat insulation layer 3, a cover plate 5 is arranged at the tin liquid flow hole 4 in an openable manner, a tin adding port 12 communicated with the interior of the primary melting chamber is arranged on the primary melting chamber 111, a movable baffle 15 is arranged at the tin adding port 12 in an openable manner, a tin outlet 13 communicated with the interior of the secondary melting chamber is arranged on the secondary melting chamber 112, and a valve is arranged at the tin outlet 13, wherein the tin adding port 12 is arranged at a position higher than the tin surface in the primary melting chamber 111, and the tin outlet 13 is arranged at a position lower than the tin surface in the secondary melting chamber 112; a tin liquor channel 2, wherein the tin liquor channel 2 is arranged at the tin outlet 13 in a downward inclined way, so that tin liquor in the remelting chamber 112 flows out of the tin liquor channel 2 through the tin outlet 13 when the valve is opened; and a heating member including a first heating member provided on an inner wall of the primary melting chamber 111 and a second heating member provided on an inner wall of the remelting chamber 112.
According to the technical scheme, in the tin adding device for the tin bath in the float glass production line, the tin melting chamber 11 is arranged in the box body 1 outside the tin bath, the heat insulation layer 3 is adopted to divide the tin melting chamber 11 into the primary melting chamber 111 and the remelting chamber 112 with different temperatures according to the treatment stage of tin, and the primary melting chamber 111 and the remelting chamber 112 are heated to different temperatures through different heating pieces, so that tin ingots are initially melted in the primary melting chamber 111 with relatively low temperature to obtain tin liquid, and then the tin liquid is further heated in the remelting chamber 112 with relatively high temperature, so that the temperature of the tin liquid obtained after the temperature is basically consistent with the temperature of the tin liquid at the adding position in the tin bath, and when the tin liquid is added from the remelting chamber 112 to the corresponding position in the tin bath, the added tin liquid is uniform in temperature with the original tin liquid in the tin bath, no convection is generated, and the molding quality of the glass surface can be improved.
In the above process, the two independent chambers of the primary melting chamber 111 and the remelting chamber 112 avoid that the tin ingot directly enters into a high-temperature environment during the adding process, that is, the tin ingot firstly enters into the primary melting chamber 111 with a relatively low temperature and then enters into the remelting chamber 112 with a relatively high temperature during the adding process, so that the heat loss during the adding process of the tin ingot can be reduced. In addition, since the tin liquid is easier to oxidize in the high-temperature environment, the tin ingot is added into the primary melting chamber 111 with relatively low temperature, and then is introduced into the remelting chamber 112 from the primary melting chamber 111 for heating, so that the problem of massive oxidation caused by the fact that the tin ingot directly enters into the high-temperature environment can be avoided. In addition, the addition of the tin ingot into the primary melting chamber 111 with relatively low temperature can further reduce the harm to operators caused by tin liquid splashing in the tin ingot adding process.
In the embodiment provided in the present disclosure, referring to fig. 1, in order to prevent heat loss in the remelting chamber 112 caused by heat radiation generated from the remelting chamber 112 to the initial melting chamber 111, the heat insulation layer 3 may be provided to include a first protection layer 31, an intermediate heat insulation layer 32, and a second protection layer 33 arranged along a first direction, wherein the first protection layer 31 is located in the initial melting chamber 111, and the second protection layer 33 is located in the remelting chamber 112, and thus the first protection layer 31 and the second protection layer 33 are provided to have good high temperature resistance, and the intermediate heat insulation layer 32 is mainly provided to prevent heat loss in the remelting chamber 112, and thus the intermediate heat insulation layer 32 needs to be constructed as any suitable heat insulation structure. Illustratively, the first and second protective layers 31, 33 herein may be made of high temperature resistant steel sheet, while the intermediate insulating layer 32 may be made of insulating brick.
In the specific embodiment provided in the present disclosure, the cover plate 5 disposed at the tin flow through hole 4 may have at least two possible embodiments as follows:
In a first possible embodiment, referring to fig. 1, the cover plate 5 is rotatably disposed on a side of the first protective layer 31 far away from the middle insulating layer 32, and the cover plate 5 is connected with a push rod 6, the primary melting chamber 111 is provided with a through hole 7 along a second direction, the position of the through hole 7 is higher than the surface of the tin liquid in the primary melting chamber 111, the push rod 6 extends out of the primary melting chamber 111 through the through hole 7, and the push rod 6 can move along the through hole 7 to drive the cover plate 5 to open or close the tin liquid through hole 4, wherein the second direction is perpendicular to the first direction.
In a second possible embodiment, the cover plate 5 is rotatably disposed on a side (not shown) of the second protective layer 33 away from the intermediate heat insulation layer 32, and a push rod 6 is connected to the cover plate 5, a through hole 7 is formed in the remelting chamber 112 along a second direction, the through hole 7 is disposed at a position higher than the surface of tin liquid in the remelting chamber 112, the push rod 6 extends out of the remelting chamber 112 through the through hole 7, and the push rod 6 can move along the through hole 7 to drive the cover plate 5 to open or close the tin liquid flow hole 4, wherein the second direction is perpendicular to the first direction.
In both of the above possible embodiments, the through-hole may be constructed in an elongated structure, the length of which may be set according to the moving path of the push rod 6 in actual use, that is, the length of the through-hole in the second direction is at least required to be sufficient to enable the push rod 6 to open and close the cover plate 5. In order to ensure that the cover plate 5 is reliably covered on the molten tin through hole 4 during operation, the cover plate 5 can be rotatably connected to the protection plate through a rotating shaft and the like, and a stop block is arranged at a proper position on the protection layer, so that the cover plate 5 is reliably covered on the molten tin through hole due to the limitation of the stop block in the rotating process. Specifically, when the cover plate 5 adopts the first possible embodiment, the cover plate 5 is rotatably connected to the first protective layer 31 through the rotation shaft, and the stopper is disposed on the side of the first protective layer 31 away from the intermediate heat insulation layer 32, whereas when the cover plate 5 adopts the second possible embodiment, the cover plate 5 is rotatably connected to the second protective layer 33 through the rotation shaft, and the stopper is disposed on the side of the second protective layer 33 away from the intermediate heat insulation layer 32. Here, in order to be suitable for the high temperature environment in the primary melting chamber 111 and the reflow chamber 112, the cover plate 5 and the push rod 6 may be both made of a high temperature resistant stainless steel material and connected by welding.
In the embodiment provided in the present disclosure, in order to uniformly stabilize the temperatures in the primary melting chamber 111 and the reflow chamber 112, the first heating member may be uniformly disposed around the entire inner wall of the primary melting chamber 111, and the second heating member may be uniformly disposed around the entire inner wall of the reflow chamber 112. Here, the first heating member and the second heating member may be configured in any suitable manner. Alternatively, since the resistance wire and the silicon carbide rod are common heating means and are easily available, at least one of the first heating member and the second heating member may be configured as the resistance wire or the silicon carbide rod.
In the specific embodiment provided in the disclosure, referring to fig. 1, in order to avoid the influence of air entering on the surface of the molten tin, the tin adding device may further include an air inlet 14, the air inlet 14 includes a first air inlet 141 and a second air inlet 142 that are in communication with the external shielding gas, the first air inlet 141 is opened on the primary melting chamber 111, the setting position of the first air inlet 141 is used for being higher than the surface of the molten tin in the primary melting chamber 111, the second air inlet 142 is opened on the remelting chamber 112, and the setting position of the second air inlet 142 is used for being higher than the surface of the molten tin in the remelting chamber 112, by such setting, the influence of air entering on the surface of the molten tin can be avoided to make the surface of the molten tin unstable or form bubbling. Here, the shielding gas introduced into the first and second gas inlets 141 and 142 may be an inert gas such as nitrogen, argon, or the like.
In the specific embodiment provided by the disclosure, referring to fig. 1, the tin adding device further includes a temperature measuring member 8, a temperature control system (not shown in the drawing) and a control panel 9, the control panel 9 is disposed on the box 1, the temperature measuring member 8 includes a first temperature measuring member 81 disposed in the primary melting chamber 111 and used for detecting the temperature in the primary melting chamber 111, and a second temperature measuring member 82 disposed in the remelting chamber 112 and used for detecting the temperature in the remelting chamber 112, the first temperature measuring member 81 and the second temperature measuring member 82 are respectively electrically connected with the temperature control system, the temperature control system is respectively electrically connected with the first heating member, the second heating member and the control panel 9, so that the first temperature measuring member 81 and the second temperature measuring member 82 can respectively measure the temperature in the primary melting chamber 111 and the remelting chamber 112 and transmit measured temperature signals to the temperature control system, and because the temperature control system is electrically connected with the control panel 9, the temperature of the primary melting chamber 111 and the remelting chamber 112 respectively measured by the first temperature measuring member 81 and the second temperature measuring member 82 can be displayed by the control panel 9, and thus the temperature of the primary melting chamber 111 and the remelting chamber 112 can be adjusted by the operator after observing the temperature of the primary melting chamber 111 and the temperature measuring member and the second temperature measuring member 112 in time. Here, the temperature control system, the first temperature measuring part 81 and the second temperature measuring part 82 may be configured in any suitable manner, and illustratively, the temperature control system may be configured as a PID temperature control system, and the first temperature measuring part 81 and the second temperature measuring part 82 may be configured as thermocouples.
In the specific embodiment provided in the present disclosure, the temperatures in the primary melting chamber 111 and the secondary melting chamber 112 may be set in at least the following three possible embodiments:
In a first possible embodiment, the operating temperature within the primary melting chamber 111 ranges from 300 ℃ to 350 ℃.
In a second possible embodiment, the operating temperature within the remelting chamber 112 ranges from 800 ℃ to 1000 ℃.
In a third possible embodiment, the operating temperature in the primary melting chamber 111 ranges from 300 ℃ to 350 ℃ and the operating temperature in the remelting chamber 112 ranges from 800 ℃ to 1000 ℃.
In the above three embodiments, the tin can be completely melted in the primary melting chamber 111 by limiting the operating temperature range in the primary melting chamber 111, and the molten tin is substantially identical to the molten tin temperature at the adding position in the molten tin bath after the temperature of the molten tin in the reflow chamber 112 is raised by limiting the operating temperature range in the reflow chamber 112, so that the influence of convection due to the excessive temperature difference on the molding quality of glass when the molten tin in the tin adding device is added into the molten tin bath can be avoided. The working temperature in the primary melting chamber 111 needs to be higher than the melting point of tin, and the working temperature in the remelting chamber 112 is set according to the temperature of the molten tin in the molten tin bath in practical situations. Here, the working temperature in the primary melting chamber 111 may be 300 ℃, 310 ℃, 320 ℃, 330 ℃, 340 ℃ or 350 ℃, or any suitable temperature between these values, which is not limited to this disclosure. The operating temperature in the remelting chamber 112 may be 800 ℃, 850 ℃, 900 ℃, 950 ℃, or 1000 ℃, or any suitable temperature therebetween, and the disclosure is not limited thereto.
In the specific embodiment provided in the disclosure, referring to fig. 1, in order to enable the tin adding device to flexibly move according to the tin adding position of the tin bath in actual situations during use, rollers 10 may be provided at the bottom of the box 1, for example, the four corners of the box 1 are respectively provided with rollers 10.
In the specific embodiment provided in the disclosure, referring to fig. 1, in order to further prevent the operator from being burned due to the sputtering of the tin liquid during the tin ingot adding, a tin adding groove 121 may be provided at the tin adding port 12, and the tin adding groove 121 extends away from the box body 1, so that when tin needs to be added into the primary melting chamber 111, the tin ingot may be placed on the tin adding groove 121 first, and then pushed into the primary melting chamber 111 through the tin adding port 12 by a sliding shovel.
When the tin adding device is used, referring to fig. 1, firstly, the tin adding device is moved to a proper position of a tin tank through a roller 10, so that an outlet of a tin liquid channel 2 of the tin adding device is positioned at the tin adding position of the tin tank, then, a tin ingot is placed on a tin adding tank 121, the tin ingot is pushed into a primary melting chamber 111 through a tin adding port 12 by a sliding shovel, after the tin ingot is completely melted in the primary melting chamber 111, a cover plate 5 is moved through a push rod 6, a tin liquid through hole 4 is opened, and tin liquid in the primary melting chamber 111 flows into a remelting chamber 112 through the tin liquid through hole 4, after the tin liquid completely enters the remelting chamber 112, a cover plate 5 is moved through the push rod 6, so that the cover plate 5 is completely covered on the tin liquid through hole 4, after the tin liquid is kept in the remelting chamber 112 for more than 20 minutes, a valve is opened, and the tin liquid flows into the proper position in the tin tank through the tin liquid channel 2 and the tin outlet 13.
In the above-described process, after the molten tin flows entirely into the remelting chamber 112 and the cover plate 5 completely covers the tin flow through-hole 4, the addition of the tin ingot into the preliminary melting chamber 111 and the start of the melting of the next round may be continued as necessary in the above-described manner.
The preferred embodiments of the present disclosure have been described in detail above with reference to the accompanying drawings, but the present disclosure is not limited to the specific details of the embodiments described above, and various simple modifications may be made to the technical solutions of the present disclosure within the scope of the technical concept of the present disclosure, and all the simple modifications belong to the protection scope of the present disclosure.
In addition, the specific features described in the foregoing embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, the present disclosure does not further describe various possible combinations.
Moreover, any combination between the various embodiments of the present disclosure is possible as long as it does not depart from the spirit of the present disclosure, which should also be construed as the disclosure of the present disclosure.
Claims (9)
1. A tin adding device for a tin bath in a float glass production line, the tin adding device comprising:
The tin melting device comprises a box body, wherein a tin melting chamber is arranged in the box body, a heat insulation layer is arranged in the tin melting chamber, the heat insulation layer divides the tin melting chamber into a primary melting chamber and a secondary melting chamber along a first direction, a tin liquid flow hole is formed in the heat insulation layer, a cover plate is arranged at the tin liquid flow hole in an openable manner, a tin adding port communicated with the interior of the primary melting chamber is arranged on the primary melting chamber, a movable baffle is arranged at the tin adding port in an openable manner, a tin outlet communicated with the interior of the primary melting chamber is arranged on the secondary melting chamber, and a valve is arranged at the tin outlet, wherein the tin adding port is arranged at a position higher than the tin surface in the primary melting chamber, and the tin outlet is arranged at a position lower than the tin surface in the secondary melting chamber;
The tin liquid channel is obliquely arranged at the tin outlet, so that tin liquid in the remelting chamber flows out of the tin liquid channel through the tin outlet when the valve is opened; and
The heating piece, the heating piece includes first heating piece and second heating piece, first heating piece sets up the interior wall of primary melting chamber, the second heating piece sets up the interior wall of remelting chamber.
2. The tin adding device for a tin bath in a float glass production line according to claim 1, wherein the heat insulating layer comprises a first protective layer, an intermediate heat insulating layer and a second protective layer arranged along a first direction, wherein the first protective layer is located in the primary melting chamber and the second protective layer is located in the remelting chamber.
3. The tin adding device for a tin bath in a float glass production line according to claim 2, wherein the cover plate is rotatably arranged on one side of the first protective layer far away from the middle heat insulation layer, and is connected with a push rod, a through hole is formed in the primary melting chamber along a second direction, the position of the through hole is higher than the surface of tin liquid in the primary melting chamber, the push rod extends out of the primary melting chamber through the through hole, and the push rod can move along the through hole to drive the cover plate to open or close the tin liquid through hole, wherein the second direction is perpendicular to the first direction.
4. The tin adding device for a tin bath in a float glass production line according to claim 2, wherein the cover plate is rotatably arranged on one side of the second protective layer far away from the middle heat insulation layer, a push rod is connected to the cover plate, a through hole is formed in the remelting chamber along a second direction, the through hole is arranged at a position higher than the surface of tin liquid in the remelting chamber, the push rod extends out of the remelting chamber through the through hole, and the push rod can move along the through hole to drive the cover plate to open or close the tin liquid through hole, wherein the second direction is perpendicular to the first direction.
5. The tin adding device for a tin bath in a float glass production line according to claim 1, wherein at least one of the first heating member and the second heating member is configured as a resistance wire or a silicon carbon rod.
6. The tin adding device for a tin bath in a float glass production line according to claim 1, further comprising an air inlet, wherein the air inlet comprises a first air inlet and a second air inlet which are communicated with an external protection gas, the first air inlet is formed in the primary melting chamber, the first air inlet is arranged at a position higher than the surface of tin in the primary melting chamber, the second air inlet is formed in the remelting chamber, and the second air inlet is arranged at a position higher than the surface of tin in the remelting chamber.
7. The tin adding device for a tin bath in a float glass production line according to claim 1, further comprising a temperature measuring member, a temperature control system and a control panel, wherein the control panel is arranged on the box body, the temperature measuring member comprises a first temperature measuring member arranged in the primary melting chamber and used for detecting the temperature in the primary melting chamber and a second temperature measuring member arranged in the remelting chamber and used for detecting the temperature in the remelting chamber, the first temperature measuring member and the second temperature measuring member are respectively electrically connected with the temperature control system, and the temperature control system is respectively electrically connected with the first heating member, the second heating member and the control panel.
8. A tin adding device for a tin bath in a float glass production line according to any one of claims 1 to 7, wherein the bottom of the tank is provided with rollers.
9. The tin adding device for a tin bath in a float glass production line according to claim 8, wherein a tin adding groove is further arranged at the tin adding port, and the tin adding groove extends away from the box body.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322334325.0U CN220867274U (en) | 2023-08-29 | 2023-08-29 | Tin adding device for tin bath in float glass production line |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322334325.0U CN220867274U (en) | 2023-08-29 | 2023-08-29 | Tin adding device for tin bath in float glass production line |
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| Publication Number | Publication Date |
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| CN220867274U true CN220867274U (en) | 2024-04-30 |
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|---|---|---|---|
| CN202322334325.0U Active CN220867274U (en) | 2023-08-29 | 2023-08-29 | Tin adding device for tin bath in float glass production line |
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| Country | Link |
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| CN (1) | CN220867274U (en) |
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