A method for extending the life of a system by purging platinum channel leaks

Abstract

This invention discloses a method for extending the lifespan of a system by guiding the leakage of molten glass in a platinum channel, belonging to the TFT-LCD substrate glass industry. It primarily addresses the problem of localized, multi-point leakage during the later stages of platinum channel operation. A dedicated unloading device is designed below the original platinum channel, including a semi-circular trough and unloading pipes on both sides for guiding and unloading. This device can effectively bear and divert leakage from the platinum body. The holes at the connection between the unloading pipe and the trough are filled with mud to form a seal at the top of the unloading pipe. The unloading pipe is also filled with insulation and sealing material, allowing the molten glass leaking from inside the channel to be discharged outside the equipment in a short time. This prevents continuous diffusion and erosion of the internal refractory material, ensuring the integrity of the channel structure over a large area and preventing further expansion of localized leakage problems, thus effectively extending the channel's service life to a certain extent.

Description

Technical Field

[0001] This invention belongs to the field of substrate glass manufacturing technology, and specifically relates to a method for extending system life by guiding the leakage of platinum channels in the glass. Background Technology

[0002] With the continuous development of substrate glass manufacturing technology, new technical requirements have been raised regarding the system lifespan of equipment. In recent years, platinum channel equipment has seen its overall lifespan extended from the earlier 2-3 years to approximately 4 years through continuous optimization of system processes and structural reinforcement of local weak points. This significantly improves the overall production capacity of a single production line. System analysis reveals that under the longer lifespan system, the weak areas of the platinum channel have shifted from a single high-temperature region to multiple, randomized areas. While the overall system reliability of the longer-life channel body still meets requirements, multiple points of localized damage and material leakage will gradually emerge. This is mainly related to the system sealing of the channel, a complex problem that cannot be precisely located and completely improved in the short term. Therefore, through comprehensive analysis of the shutdown characteristics of multiple production lines, it is concluded that over 80% of line shutdowns are ultimately due to material leakage at multiple points. This causes the molten glass in a certain area to continuously erode the internal filling layer and even the supporting structure. When this destructive range continues to spread and touches some critical areas, the local stable environment is disrupted, resulting in irreversible defects such as N2 and SO2 bubbles. In summary, the irreversible defects in the platinum channel in the later stages are due to the large-scale leakage of molten glass and the formation of a large cavity in the refractory material area around the channel. This damages the original glass environment inside the platinum channel, while external refractory material and air continuously enter the channel, forming persistent bubbles and stones.

[0003] Therefore, for this type of lifespan problem that leads to uncontrollable defects in the later stages of the channel, if the problem of multiple local leakage points cannot be completely solved, it is necessary to mitigate or effectively block it through other means so that the leakage can be controlled within a small area and will not cause further regional expansion and affect other sections. This will extend the system lifespan of the channel by at least six months.

[0004] The existing platinum channel suffers from multiple leakage points, leading to continuous erosion of the internal filling layer and even the supporting structure by molten glass, causing the line to shut down. This disrupts the local stable environment, resulting in the formation of N2 and SO2 bubbles. External refractory materials and air continuously enter the channel, creating persistent bubbles and aggregates—irreversible defects. There is an urgent need to find a method to extend the system's lifespan by channeling leaking molten glass through the platinum channel. Timely drainage of the molten glass allows it to flow smoothly out of the unloading pipe, achieving the purpose of drainage and preventing the accumulation of more molten glass inside the channel from spreading to other areas and causing more serious equipment accidents. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, the present invention aims to provide a method for extending the system life by guiding the leakage of glass in the platinum channel, so as to solve the technical problem of multiple leakage points in the platinum channel, accumulation of molten glass in the pipeline, corrosion of the channel, and equipment accidents.

[0006] To achieve the above objectives, the present invention employs the following technical solution:

[0007] This invention discloses a method for extending system life by guiding the leakage of platinum channel glass, comprising the following steps:

[0008] 1) Lay support bricks to form an open "U" structure, and make holes in the support bricks. Apply mud around the holes so that the actual reserved hole is smaller than the outer contour of the unloading pipe.

[0009] 2) Place the platinum channel unloading device on the support brick, insert the unloading pipe of the platinum channel unloading device into the hole of the support brick, so that the outer surface of the material trough of the platinum channel unloading device is in contact with the inner surface of the support brick, and the unloading pipe and the hole of the support brick are sealed by mud.

[0010] 3) Fill the hole at the connection between the unloading pipe and the trough with mud to seal the upper part of the unloading pipe;

[0011] 4) Install the platinum channel and fill the filler layer outside the platinum channel with alumina or zirconium oxide slurry;

[0012] 5) Fill the unloading pipe from the bottom until it is completely filled. When leakage occurs in the corresponding section, the molten glass first erodes the filling layer, then melts the blockage at the top of the unloading pipe, and finally melts the filling material inside the unloading pipe, thus forming a complete unloading channel, allowing the leaked molten glass to be fully discharged.

[0013] In step 2), the platinum channel unloading device includes a trough and unloading pipes installed on both sides of the lower part of the trough. Holes are opened at the bottom of the trough, and the unloading pipes are installed at the holes.

[0014] Preferably, the viscosity of the slurry is greater than the viscosity of the alumina or zirconium oxide slurry in the filling layer; the thickness of the seal at the top of the discharge pipe is 15~25mm.

[0015] Preferably, the feed trough is made of pure platinum or a platinum-rhodium alloy; in the platinum-rhodium alloy, the rhodium content is 0~20%.

[0016] Preferably, the material trough has a semi-circular structure, with an inner diameter 15-20 mm larger than that of the platinum channel, a wall thickness of 0.8-1.2 mm, and a length of 500-1500 mm.

[0017] Preferably, multiple sets of unloading pipes are provided at equal or varying intervals on both sides of the lower part of the material trough; the material and wall thickness of the unloading pipes are the same as those of the material trough, and the unloading pipes are connected to the material trough by welding.

[0018] Preferably, the unloading pipe is filled with an insulation sealant, which is made of ceramic fiber cotton material.

[0019] Preferably, the discharge pipe is inclined at 30° to 120°.

[0020] Preferably, the area at the outlet end of the unloading pipe is smaller than the area at the inlet end.

[0021] Preferably, the connection area between the unloading pipe and the trough is a rounded rectangle or an ellipse with an area of ​​6~10cm².

[0022] Preferably, a discharge pipe monitoring thermocouple is provided on the upper surface of the discharge pipe.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] This invention discloses a method for extending the lifespan of a platinum channel by guiding leaking molten glass. This method is primarily applied to controlling leaks in the later stages of platinum channel operation. It includes a dedicated platinum channel guiding and unloading device designed to prevent further diffusion of leaked platinum molten glass, and a targeted installation method. First, support bricks are laid to form an open "U-shaped" structure, and holes are made within the support bricks for assembling the guiding and unloading device. A mud material is applied around the holes, ensuring the actual allowance of the holes is smaller than the outer contour of the unloading pipe. The platinum channel guiding and unloading device is placed on the support bricks, and the unloading pipe is inserted into the holes in the support bricks, so that the outer surface of the trough is in contact with the inner surface of the support bricks, and a sealed state is formed between the unloading pipe and the holes in the support bricks through the mud material. The unloading process is then performed. The holes at the connection between the pipe and the trough are filled with mud to form a seal at the top of the unloading pipe. A platinum channel is installed, and alumina or zirconium oxide mud is filled into the filling layer outside the platinum channel. The unloading pipe is filled from the bottom until it is completely filled. When leakage occurs in the corresponding section, the molten glass first erodes the filling layer, then melts the seal at the top of the unloading pipe, and finally melts the filling material inside the unloading pipe, thus forming a complete unloading channel, allowing the leaked molten glass to be fully discharged. The platinum channel unloading device includes a trough and unloading pipes installed on both sides of the lower part of the trough. Holes are opened at the bottom of the trough, and the unloading pipes are installed at the holes. Using the same platinum structure as the main body, it relies on the inside of the channel to form a curved trough shape, and unloading channels are designed on both sides of the trough. The platinum channel unloading device is installed and fitted with the original platinum channel body, and the structure is locally fixed and sealed. In the later stage of production, when leakage occurs in the corresponding section, the molten glass will first locally erode the filling layer. Within about half a month, the molten glass will reach the inlet end of the unloading pipe and quickly melt the upper part of the unloading pipe. The ceramic fiber cotton that insulates the unloading pipe will melt within a few days due to the erosion of the molten glass, thus forming a complete unloading channel. This allows the leaked molten glass to be fully discharged to the outside of the refractory material, preventing the filling layer inside the channel from expanding due to the accumulation of more glass and affecting other areas, thus avoiding more serious equipment accidents and a high incidence of defects. This invention addresses the problem of localized, multi-point leakage from platinum channels during their later operation. By designing a dedicated diversion and unloading device, it can effectively support and divert leakage from the platinum body. This allows the molten glass leaking from inside the channel to be discharged outside the equipment in a short time, preventing continuous diffusion and erosion of the internal refractory materials. This ensures that the structure of a large area of ​​the channel remains intact, preventing further expansion of localized leakage problems and effectively extending the service life of the channel to a certain extent.

[0025] Furthermore, the viscosity of the slurry is greater than that of the alumina or zirconium oxide slurry in the filling layer; the thickness of the seal at the top of the discharge pipe is 15~25mm; this ensures that the filler material in this area does not flow out of the discharge pipe under normal circumstances.

[0026] Furthermore, the unloading pipe is filled with an insulation plug made of ceramic fiber cotton. The ceramic fiber cotton is inserted into all the unloading pipes from the bottom using stainless steel wire, so that the cotton completely fills the unloading pipe, forming a structure similar to an insulation plug. This effectively prevents leakage during daily production and provides sealing and insulation protection for this area, avoiding relatively localized cold spots that could cause uneven heat distribution inside the platinum and affect normal production quality.

[0027] Furthermore, a thermocouple for monitoring the unloading pipe is installed on the upper surface of the unloading pipe. Based on the abnormal temperature changes of the monitored thermocouple, it is determined whether the molten glass has leaked out. In the later stages of production, based on the abnormal changes of the thermocouple in the platinum channel itself, it is first determined that the corresponding section has leaked. By monitoring the abnormal changes of the thermocouple in the unloading pipe, it is determined that the molten glass has melted and eroded the upper seal of the unloading pipe and entered the main section of the unloading pipe. In order to promptly clear the heat preservation seal of the unloading pipe, the molten glass can flow out smoothly from the unloading pipe, thus achieving the purpose of unloading. Attached Figure Description

[0028] Figure 1 This is a schematic cross-sectional view of the original structure of the platinum channel disclosed in this invention;

[0029] Figure 2 This is a schematic diagram of the platinum leaking glass unloading tube structure disclosed in this invention;

[0030] Figure 3 This is a schematic diagram of the overall cross-section of the platinum channel unloading device disclosed in this invention;

[0031] Figure 4 This is a schematic diagram of a multi-point drainage scheme for extending system life by diverting leaking glass through a platinum channel, as disclosed in this invention.

[0032] Wherein: 1-Platinum channel; 2-Filling layer; 3-Material trough; 4-Discharge pipe; 5-Support brick; 6-Discharge pipe insulation and sealing; 7-Discharge pipe upper sealing; 8-Discharge pipe monitoring thermocouple. Detailed Implementation

[0033] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0034] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0035] The present invention will now be described in further detail with reference to the accompanying drawings:

[0036] A method for extending system life by channeling leaking molten platinum through a platinum channel includes a dedicated channeling unloading structure designed to prevent further diffusion of leaked platinum molten glass and a targeted installation method.

[0037] See Figure 1 This is a schematic diagram of the original structure of the platinum channel disclosed in this invention. As can be seen from the figure, the cross-section of the traditional platinum channel structure mainly consists of a platinum channel 1, a filling layer 2, and a supporting brick 5. When a local breakage and leakage occurs, the high-temperature molten glass will first erode the filling layer 2 and spread from the radial height direction and the flow length direction. Generally, after several months, the filling material inside a single section of the channel will be basically eroded and melted, forming a large-scale cavity, and even further eroding the supporting structure. The support of these large-scale cavities for the platinum body is also reduced. Therefore, in the later stages, deformation and irreversible defects of the platinum body often occur.

[0038] See Figure 2 This is a schematic diagram of the platinum leaking glass unloading tube structure disclosed in this invention; Figure 3 This is a schematic diagram of the overall cross-section of the platinum channel unloading device disclosed in this invention; Figure 4This is a schematic diagram of the multi-point drainage scheme for extending system life by diverting leaking glass through the platinum channel, as disclosed in this invention. As shown in the diagram, this invention specifically adds a drainage and unloading device to the original platinum channel 1. A concentric semi-circular material trough 3 is designed in the lower half of the original platinum channel 1, and unloading pipes 4 are designed on both sides of the material trough 3 for drainage and unloading. This device can play a certain role in bearing and diverting leaking glass from the platinum channel 1. The platinum channel 1 is the main channel for substrate glass manufacturing and belongs to the original basic structure. It is generally a circular tube made of platinum-rhodium alloy, with an Rh content generally between 5% and 20%. The material is selected according to the regional process temperature differences, and the thickness is usually 1.0 to 2.0 mm. Combined with refractory materials and other components, it forms the overall structure of this invention. Besides the original platinum channel 1, filling layer 2, and supporting brick 5, the core components of this invention include the material trough 3, unloading pipe 4, unloading pipe insulation seal 6, unloading pipe upper seal 7, and unloading pipe monitoring thermocouple 8. The discharge pipes 4 are located on both sides of the lower part of the material trough 3. The cross-sectional area of ​​each pipe is generally symmetrically distributed from left to right. The flow direction can be increased according to the bearing length. Generally, one pair is set every 500mm according to the current pipe diameter. On longer pipes, multiple sets can be distributed at equal or variable intervals for large-scale random material leakage discharge. The discharge pipe monitoring thermocouples 8 are standard welded thermocouples, one of which is installed on the upper surface of each discharge pipe 4.

[0039] The material of the material tank 3 is similar to that of the platinum body, also a platinum-rhodium alloy. The Rh content is generally the same as that of the platinum body, or can be appropriately reduced. At the very least, pure Pt material is used, and the Rh content is generally controlled between 0% and 20%. The structure of the material tank 3 is semi-circular, with an inner diameter 15-20mm larger than that of the platinum body. This range is basically the same as the thickness of the original filling layer 2, with a wall thickness of 0.8-1.2mm. Its outer wall surface is in contact with the inner wall surface of the supporting brick 5. The thickness selection mainly considers the structural strength requirements of different temperature ranges. The length range of the material tank 3 is generally determined by the length range of the platinum channel 1 to be protected. According to the current high-speed transmission line structure, it is generally designed in the range of 500-1500mm. Custom designs can also be made for certain local areas, such as the docking area between the cooling outlet and the stirring inlet, which can generally be designed to be within a range of 200mm. The design principle mainly combines the length of a single functional area, that is, the range where there are flanges at both ends to prevent leakage from spreading further.

[0040] The material and wall thickness of the unloading pipe 4 are consistent with those of the material trough 3, and the two are connected by welding. The distribution size and symmetrical span of the unloading pipe 4 are generally related to the diameter of the platinum channel 1. The center lines of the two generally form a symmetrical 60° angle, which can maximize the absorption and drainage of leaked glass. A characteristic range of 30°~120° can also be designed. The connection area between the unloading pipe 4 and the material trough 3 can be designed as a rounded rectangle or elliptical structure. The area combined with the leakage amount of the channel is generally designed to be 6~10cm². The area of ​​its outlet end is generally reduced by 50% compared with the inlet end to achieve controllable unloading. This is designed in combination with the actual leakage temperature and the conventional leakage amount.

[0041] The unloading pipe insulation and sealing 6 mainly uses high-temperature resistant ceramic fiber cotton. This material can be purchased directly. Using this cotton can effectively prevent leakage during daily production. It provides sealing and insulation protection for this area, avoiding relatively local cold spots and causing uneven heat distribution inside the platinum, which would affect normal production quality.

[0042] The upper sealing 7 of the discharge pipe is designed with the same material as the filling layer 2, and compared with the filling layer, it generally uses a slurry with higher viscosity, which can ensure that the filling material in this area does not flow out to the outside of the discharge pipe under normal circumstances.

[0043] The unloading pipe monitoring thermocouple 8 uses a standard welded thermocouple, with one installed on the upper surface of each unloading pipe 4. In the later stages of production, based on the abnormal changes of the thermocouples in the platinum channel 1, it is first determined that leakage has occurred in the corresponding section. Further, by monitoring the abnormal changes of the unloading pipe monitoring thermocouple 8, it is determined that the molten glass has melted and eroded the upper sealing 7 of the unloading pipe and entered the main section of the unloading pipe 4. This allows for timely drainage of the unloading pipe insulation sealing 6, enabling the molten glass to flow smoothly out of the unloading pipe and achieving the purpose of drainage.

[0044] The above describes the structural layout and functional role of the present invention. However, this structure requires a specific installation method to function effectively.

[0045] This invention discloses a method for extending system life by guiding the leakage of platinum channel glass, specifically including the following steps:

[0046] 1) Following the normal assembly method of the platinum channel, first lay the bottom support bricks 5 to form an open "U" structure. For the unloading pipe 4, holes need to be opened in the corresponding positions in advance to facilitate the assembly of the unloading device.

[0047] 2) The special device for placing the present invention includes a material trough 3, a discharge pipe 4, a discharge pipe insulation seal 6, a discharge pipe upper seal 7, and a discharge pipe monitoring thermocouple 8. The filling layer of mud is applied around the hole where the discharge pipe 4 is to be placed in advance, so that the actual reserved hole is smaller than the outer contour of the discharge pipe 4.

[0048] 3) Insert the corresponding unloading pipe 4 into the pre-reserved corresponding hole so that the outer surface of the material trough 3 is in contact with the inner surface of the supporting brick 5, and the pre-reserved holes of the unloading pipe 4 are sealed by the pre-coated mud.

[0049] 4) Use the same mud to fill the openings of the connection area between each unloading pipe 4 and the trough 3, and form a sealing surface with a thickness of about 20mm to form the upper plug 7 of the unloading pipe;

[0050] 5) Begin normal installation of platinum channel 1. The main process is the same as normal installation. During this period, routine mud filling is carried out for filling layer 2. The mud used here is generally alumina or zirconium oxide.

[0051] 6) After the platinum channel 1 and the upper support brick 5 are assembled, the platinum body, including the platinum channel 1, the filling layer 2 and the support brick 5, is also installed.

[0052] 7) Starting from the bottom, use stainless steel wire to put ceramic fiber cotton into all the unloading pipes 4, so that the cotton completely fills the unloading pipes, forming a structure similar to an insulation plug, i.e., unloading pipe insulation and sealing 6.

[0053] This completes the assembly and sealing of the present invention. In the later stages of production, when leakage occurs in the corresponding section, the molten glass first begins to locally erode the filling layer 2. Within about half a month, the molten glass will reach the inlet end of the unloading pipe 4 and quickly melt the upper sealing 7 of the unloading pipe. Subsequently, the temperature of the monitoring thermocouple 8 located on the upper part of the unloading pipe 4 changes abnormally, confirming that the molten glass has leaked out. The ceramic fiber cotton of the insulation sealing 6 of the unloading pipe will melt within a few days due to the erosion of the molten glass, thus forming a complete unloading channel. This allows the leaked molten glass to be fully discharged to the outside of the refractory material, preventing the filling layer 2 inside the channel from expanding due to the accumulation of more glass and affecting other areas, thus avoiding more serious equipment accidents and a high incidence of defects.

[0054] This invention discloses a method for extending system life by guiding the leakage of platinum channel glass, comprising the following steps:

[0055] 1) Lay support bricks 5 to form an open "U" structure, and make holes in the support bricks 5. Apply mud around the holes so that the actual reserved hole is smaller than the outer contour of the unloading pipe 4.

[0056] 2) Place the platinum channel unloading device on the support brick 5. The platinum channel unloading device includes a material trough 3 and unloading pipes 4 installed on both sides of the lower part of the material trough 3. A hole is opened at the bottom of the material trough 3, and the unloading pipes 4 are installed at the hole. The unloading pipes 4 of the platinum channel unloading device are inserted into the hole of the support brick 5, so that the outer surface of the material trough 3 of the platinum channel unloading device is in contact with the inner surface of the support brick 5, and a sealed state is formed between the unloading pipes 4 and the hole of the support brick 5.

[0057] 3) Fill the hole at the connection between the unloading pipe 4 and the trough 3 with mud to form the upper part of the unloading pipe blockage 7;

[0058] 4) Install platinum channel 1 and fill the filling layer 2 outside platinum channel 1 with alumina or zirconium oxide slurry;

[0059] 5) Fill the unloading pipe 4 from the bottom until it is completely filled. When leakage occurs in the corresponding section, the molten glass first erodes the filling layer 2, then melts the upper blockage 7 of the unloading pipe, and finally melts the filling material inside the unloading pipe 4, thereby forming a complete unloading channel so that the leaked molten glass can be fully discharged.

[0060] Employing the same platinum structure as the main body, it forms a curved material trough within the channel, with unloading channels designed on both sides. The platinum channel unloading device is installed and fitted with the original platinum channel body, providing local fixation and sealing for this structure. In the later stages of production, when leakage occurs in the corresponding section, the molten glass first locally erodes the filling layer. Within about half a month, the molten glass will reach the inlet of the unloading pipe, quickly melting the upper seal of the unloading pipe. The ceramic fiber cotton used for insulation and sealing the unloading pipe will melt within a few days due to the erosion of the molten glass, thus forming a complete unloading channel. This allows the leaked molten glass to be fully discharged to the outside of the refractory material, preventing the filling layer inside the channel from expanding due to the accumulation of more glass and affecting other areas, ultimately leading to more serious equipment accidents and a high incidence of defects. This invention addresses the problem of localized, multi-point leakage from platinum channels during their later operation. By designing a dedicated diversion and unloading device, it can effectively support and divert leakage from the platinum body. This allows the molten glass leaking from inside the channel to be discharged outside the equipment in a short time, preventing continuous diffusion and erosion of the internal refractory materials. This ensures that the structure of a large area of ​​the channel remains intact, preventing further expansion of localized leakage problems and effectively extending the service life of the channel to a certain extent.

[0061] The viscosity of the slurry is greater than that of the alumina or zirconium oxide slurry in the filling layer 2; the thickness of the upper sealing 7 of the discharge pipe is 15~25mm; this ensures that the filling material in this area does not flow out of the discharge pipe under normal circumstances. The trough 3 is made of pure platinum or a platinum-rhodium alloy; in the platinum-rhodium alloy, the rhodium content is 0~20%. The trough 3 has a semi-circular structure, with an inner diameter 15~20mm larger than the platinum channel, a wall thickness of 0.8~1.2mm, and a length of 500~1500mm. Multiple sets of discharge pipes 4 are provided at equal or varying intervals on both sides of the lower part of the trough 3; the material and wall thickness of the discharge pipes 4 are the same as those of the trough 3, and the discharge pipes 4 are connected to the trough 3 by welding. The unloading pipe 4 is filled with an insulation plug 6 made of ceramic fiber cotton. The ceramic fiber cotton is inserted into all the unloading pipes from the bottom using stainless steel wire, completely filling them and forming a structure similar to an insulation plug. This effectively prevents leakage during daily production, providing sealing and insulation for this area and avoiding localized cold spots that could cause uneven heat distribution within the platinum, affecting normal production quality. The unloading pipe 4 is inclined at 30°~120°. The outlet area of ​​the unloading pipe 4 is smaller than the inlet area. The connection area between the unloading pipe 4 and the material trough 3 is a rounded rectangle or ellipse with an area of ​​6~10 cm². A thermocouple 8 for monitoring the unloading pipe is installed on the upper surface of the unloading pipe 4. Based on the abnormal temperature change of the monitoring thermocouple, it is determined whether the molten glass has leaked out. In the later stage of production, based on the abnormal temperature change of the thermocouple of the platinum channel itself, it is first determined that the corresponding section has leaked. By monitoring the abnormal temperature change of the thermocouple of the unloading pipe, it is determined that the molten glass has melted and eroded the upper seal of the unloading pipe and entered the main section of the unloading pipe. In order to promptly clear the heat preservation and sealing of the unloading pipe, the molten glass can flow out smoothly from the unloading pipe, thus achieving the purpose of unloading.

[0062] The above content is only for illustrating the technical concept of the present invention and should not be construed as limiting the scope of protection of the present invention. Any modifications made to the technical solution based on the technical concept proposed in this invention shall fall within the scope of protection of the claims of this invention.

Claims

1. A method for extending system lifespan by guiding the leakage of platinum channel glass, characterized in that, Includes the following steps: 1) Lay support bricks (5) to form an open "U" structure, and make holes in the support bricks (5). Apply mud around the holes so that the actual reserved hole is smaller than the outer contour of the unloading pipe (4). 2) Place the platinum channel unloading device on the support brick (5), insert the unloading pipe (4) of the platinum channel unloading device into the hole of the support brick (5), so that the outer surface of the material trough (3) of the platinum channel unloading device is in contact with the inner surface of the support brick (5), and a sealed state is formed between the unloading pipe (4) and the hole of the support brick (5). 3) Fill the hole at the connection between the unloading pipe (4) and the trough (3) with mud to form a blockage (7) at the top of the unloading pipe; 4) Install the platinum channel (1) and fill the filling layer (2) outside the platinum channel (1) with alumina or zirconium oxide slurry; 5) Fill the unloading pipe (4) from the bottom to make it completely filled. When leakage occurs in the corresponding section, the glass liquid first erodes the filling layer (2), then melts the upper blockage (7) of the unloading pipe, and finally melts the filling material inside the unloading pipe (4) to form a complete unloading channel, so that the leaked glass liquid inside can be fully discharged. In step 2), the platinum channel unloading device includes a trough (3) and unloading pipes (4) installed on both sides of the lower part of the trough (3). A hole is opened below the trough (3), and the unloading pipes (4) are installed at the hole.

2. The method for extending system life by guiding the leakage of platinum channel glass according to claim 1, characterized in that, The viscosity of the mud material in the upper plug (7) of the unloading pipe is greater than the viscosity of the alumina or zirconium oxide mud material in the filling layer (2); the thickness of the upper plug (7) of the unloading pipe is 15~25mm.

3. The method for extending system life by guiding the leakage of platinum channel glass according to claim 1, characterized in that, The feed trough (3) is made of pure platinum or a platinum-rhodium alloy; in the platinum-rhodium alloy, the rhodium content is 0~20%.

4. The method for extending system life by guiding the leakage of platinum channel glass according to claim 1, characterized in that, The material trough (3) has a semi-circular structure with an inner diameter 15-20 mm larger than the platinum channel, a wall thickness of 0.8-1.2 mm, and a length of 500-1500 mm.

5. The method for extending system life by guiding the leakage of platinum channel glass according to claim 1, characterized in that, Multiple sets of unloading pipes (4) are provided at equal or variable intervals on both sides of the lower part of the material trough (3); the material and wall thickness of the unloading pipes (4) are the same as those of the material trough (3), and the unloading pipes (4) are connected to the material trough (3) by welding.

6. The method for extending system life by guiding the leakage of platinum channel glass according to claim 1, characterized in that, The unloading pipe (4) is filled with an unloading pipe insulation seal (6), which is made of ceramic fiber cotton material.

7. The method for extending system life by guiding the leakage of platinum channel glass according to claim 1, characterized in that, The outlet area of ​​the unloading pipe (4) is smaller than the inlet area.

8. The method for extending system life by guiding the leakage of platinum channel glass according to claim 1, characterized in that, The connection area between the unloading pipe (4) and the trough (3) is a rounded rectangle or an ellipse with an area of ​​6~10cm².

9. The method for extending system life by guiding the leakage of platinum channel glass according to claim 1, characterized in that, The upper surface of the unloading pipe (4) is provided with an unloading pipe monitoring thermocouple (8).

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