Cooling protection system for the connection of a tunnel to a kiln

Abstract

The application discloses a cooling protection system for the connection between a kiln and a channel, comprising a kiln body and a platinum conduit, a flow liquid hole is formed on the pool wall brick at the bottom of the kiln body; the front end of the platinum conduit penetrates into the kiln body from the flow liquid hole, a front baffle and a rear baffle are sleeved on the platinum conduit, and the front baffle and the rear baffle are arranged in close contact with the pool wall brick; a cooling structure is arranged on the part of the platinum conduit outside the kiln body, and the side of the cooling structure close to the kiln body is in close contact with the rear baffle; the platinum conduit is provided with a filling layer, and the filling layer is arranged at least at the positions corresponding to the pool wall brick and the cooling structure of the kiln body of the platinum conduit. The front and rear platinum baffles are combined with the cooling brick structure, the pool wall brick is prevented from being rapidly eroded and damaged by glass liquid, the service life of the pool wall brick is prolonged, the frequency of kiln shutdown and repair is reduced, and the glass quality is improved.

Description

Technical Field

[0001] This invention relates to the field of glass processing equipment technology, and in particular to a cooling protection system at the connection between a kiln and a channel. Background Technology

[0002] On a glass production line, the furnace and the passageway are essential equipment; typically, the molten glass at the bottom of the furnace is conveyed to the passageway through flow holes in the furnace wall.

[0003] At the connection between the kiln and the channel, namely the flow channel, the molten glass is constantly eroded and washed by the molten glass, making it prone to severe corrosion and damage. This not only leads to a shorter service life of the kiln and requires frequent replacement of the flow channel wall bricks for maintenance, but also increases production costs and reduces production stability.

[0004] Due to platinum's extremely high chemical stability and high-temperature resistance, platinum conduits are increasingly widely used for the protection of flow tunnels. Ordinary platinum conduits are directly attached to the inside of the flow tunnel, their function being to replace the brick-structured tunnel walls, bearing the flow of molten glass, preventing direct erosion of the tunnel walls, and slowing down the corrosion of the furnace wall bricks. However, in reality, the swirling molten glass around the platinum conduit continues to erode the furnace wall bricks, leading to erosion of the surrounding brick structure, especially the upper part, affecting the lifespan of the flow tunnel wall bricks and even the furnace itself. Typically, to further protect the flow tunnel wall bricks, a cooling brick is attached tightly to the outside. Cooling water or other cooling media are circulated through the cooling brick to remove a large amount of heat, lowering the temperature of the furnace wall bricks and indirectly reducing the temperature of the molten glass eroding into them, thus slowing down the rate of erosion.

[0005] However, while the platinum conduit and cooling brick structure extended the lifespan of the pool wall bricks, it created new problems. First, while the cooling bricks lowered the temperature of the pool wall bricks, they also rapidly lowered the temperature of the platinum conduit, causing a rapid drop in the temperature of the molten glass inside the platinum conduit. This resulted in decreased chemical stability of the molten glass and affected its quality. Second, the cooling mechanism carried away a large amount of heat, requiring subsequent processes to consume more energy to raise the temperature of the molten glass, thus reducing energy efficiency. Summary of the Invention

[0006] To address the aforementioned shortcomings of existing technologies, the present invention aims to solve the problems of poor heat dissipation at the connection between the existing kiln and the channel, and the fact that platinum conduits combined with cooling bricks affect the stability of the glass and lead to increased energy consumption and reduced efficiency in subsequent glass processing. The invention provides a cooling protection system for the connection between the kiln and the channel. Through the combination of front and rear baffles and cooling bricks, the system prevents the pool wall bricks from being rapidly eroded and damaged by the molten glass, extending the lifespan of the pool wall bricks and reducing the frequency of kiln shutdowns and repairs. Simultaneously, by using an electrically powered platinum conduit in conjunction with real-time adjustment of the heating current, the system maintains a stable temperature of the molten glass within the platinum conduit, preventing drastic temperature changes, improving energy efficiency, and ultimately enhancing glass quality.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: a cooling protection system for the connection between a kiln and a channel, comprising a kiln body and a platinum conduit, wherein the kiln body is constructed of pool wall bricks, and a flow hole is formed in the pool wall bricks at the bottom of the kiln body; characterized in that: the front end of the platinum conduit passes through the flow hole and extends into the kiln body; a front baffle and a rear baffle are fitted on the platinum conduit, the front baffle being located inside the kiln body and the rear baffle being located outside the kiln body, and both the front baffle and the rear baffle are fitted in close contact with the pool wall bricks; a cooling structure is provided on the portion of the platinum conduit located outside the kiln body, and the side of the cooling structure closest to the kiln body is fitted in close contact with the rear baffle; the platinum conduit is provided with a filling layer, the filling layer being provided at least at the corresponding positions of the platinum conduit and the pool wall bricks and cooling structure of the kiln body.

[0008] In this design, the front end of the platinum conduit protrudes from the flow channel, and a front baffle is installed on the inner side of the pool wall brick. This isolates the pool wall brick from the direct scouring of the flowing molten glass vortex, allowing the molten glass to flow directly through the conduit without directly scouring the flow channel, thus effectively protecting the pool wall brick (the sidewall of the flow channel). By installing a rear baffle on the outer side of the pool wall brick, even after prolonged use and when the molten glass erodes the pool wall brick, the rear baffle, being in close contact with the outer wall, requires more time for the molten glass to erode until it exceeds the protective boundary of the rear baffle before leakage occurs, significantly extending the lifespan of the pool wall brick. Furthermore, the platinum conduit is equipped with a filling layer, which effectively supports and protects the platinum conduit. Simultaneously, a cooling structure is installed on the outer side of the pool wall brick to cool it, further reducing the erosion rate of the molten glass, improving the stability of the pool wall brick, reducing the frequency of kiln shutdowns and repairs, and thus improving production stability.

[0009] Furthermore, the length of the platinum conduit located on the front side of the front baffle is 10-50 cm. This ensures that the position where the molten glass enters the platinum conduit is at a certain distance from the inner wall of the pool wall brick, thus creating a certain gap between the flow position of the high-temperature molten glass and the inner wall of the pool wall brick. This prevents the inner wall of the pool wall brick from being corroded by the high-temperature molten glass for a long time, thereby improving the service life of the pool wall brick.

[0010] Furthermore, the front and rear baffles are provided with through holes, through which they are fitted onto the platinum conduit and fixedly connected. The distance between the outer edges of the front and rear baffles and the outer wall of the platinum conduit is 20-200mm, and the area of ​​the rear baffle is larger than that of the front baffle. Different shapes of front and rear baffles are used depending on the erosion conditions of the pool wall bricks in different kiln bodies, thereby more effectively preventing the erosion of the molten glass.

[0011] Furthermore, when both the front and rear baffles are circular, the diameter of the rear baffle is 1.2 to 3 times the diameter of the front baffle. Using circular front and rear baffles makes the overall structure easier to manufacture and provides better protection for the pool wall bricks.

[0012] Furthermore, the front and rear baffles are made of platinum or platinum-rhodium materials. This improves the stability and high-temperature resistance of the pool wall brick protection structure and allows for better connection (welding) and fixation with the platinum conduit.

[0013] Preferably, the filling layer located in front of the junction of the cooling structure and the rear baffle is a rigid support layer, while the filling layer located behind the junction of the cooling structure and the pool wall bricks is a thermal insulation layer. This design uses a rigid support layer to support the platinum conduit, preventing deformation and breakage; and uses a thermal insulation layer to isolate heat conduction between the inner and outer layers, reducing the cooling rate of the cooling bricks on the molten glass.

[0014] Preferably, the portion of the filling layer corresponding to the cooling structure is a thermal insulation layer, with the front end of the thermal insulation layer extending between the inner and outer sides of the pool wall bricks. The portion of the filling layer located in front of the thermal insulation layer is a rigid support layer. This design uses a rigid support layer to support the platinum conduit, preventing deformation and breakage; the thermal insulation layer isolates heat conduction between the inner and outer layers, reducing the cooling rate of the molten glass by the cooling bricks; simultaneously, the thermal insulation layer extends to the front of the junction between the cooling structure and the pool wall bricks, thus pre-insulating the molten glass and improving its temperature stability.

[0015] Furthermore, the rigid support layer is formed by curing alumina hollow sphere powder with water or by processing corundum bricks, and the thermal insulation layer uses thermal insulation cotton or a ring-shaped thermal insulation board. This makes the overall structure easier and faster to manufacture, and also lowers the cost.

[0016] Furthermore, the cooling structure includes a cooling brick and a cooling pipe. The cooling brick has a through hole and is fitted onto the platinum conduit through the through hole, fitting snugly against the rear baffle. A cooling groove is provided around the cooling brick, and the cooling pipe is wound within the cooling groove. Both ends of the cooling pipe are connected to a circulating cooling system to provide a flowing cooling medium for the cooling pipe. The cooling medium cools the cooling brick, and then the cooling brick cools the rear baffle and the pool wall bricks, thus making the temperature lower and the erosion weaker as the molten glass corrodes (closer to the rear baffle), thereby further extending the life of the pool wall bricks.

[0017] Furthermore, a first temperature sensor is installed between the rear baffle and the cooling bricks to detect the temperature of the outer side of the pool wall bricks in real time.

[0018] Furthermore, it also includes a controller and a first actuator. The first actuator is connected to the cooling pipe and is used to control the flow rate of the cooling medium in the cooling pipe. Both the first temperature sensor and the first actuator are connected to the controller. The temperature sensor on the rear baffle transmits the temperature of the outer side of the pool wall bricks to the controller in real time. In the early stage of glass melt erosion, the first actuator (using a pump) controls the cooling medium in the cooling pipe to operate at a low speed to reduce energy consumption. In the later stage of glass melt erosion, the cooling medium in the cooling pipe operates at a high speed to reduce the temperature of the pool wall bricks and slow down the erosion rate of the pool wall bricks.

[0019] Furthermore, a heating structure is also provided on the portion of the platinum conduit located on the side of the cooling structure away from the furnace body. By heating the platinum conduit through the heating structure, the temperature of the molten glass flowing through the cooling structure can be increased, ensuring that the molten glass has a sufficient temperature for subsequent processing.

[0020] Furthermore, the heating structure includes two conductive flanges, both of which are fitted onto and fixedly connected to the platinum conduit. One conductive flange is located near the cooling structure, and the other conductive flange is located near the rear end of the platinum conduit. This makes the platinum conduit a heating connection mechanism, thereby enabling the heating of the molten glass and preventing it from cooling.

[0021] Furthermore, a second temperature sensor is provided on the portion of the platinum conduit located behind the filler layer. In practice, the second temperature sensor is directly mounted on the surface of the platinum conduit; or a temperature sensor mounting hole is provided on the platinum conduit, the second temperature sensor is mounted in the mounting hole, and the detection end of the second temperature sensor extends into the inside of the platinum conduit; this is used to detect the temperature of the flowing molten glass in real time.

[0022] Furthermore, it also includes a second actuator, which is connected to the controller. The second actuator is used to control the voltage or current flowing through the platinum conduit. The controller, based on the temperatures collected by the two temperature sensors, drives the second actuator to adjust the voltage or current flowing through the platinum conduit to maintain a stable glass melt temperature and improve the quality of the glass melt.

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

[0024] 1. By installing front and rear baffles on the inside and outside of the pool wall bricks respectively, the position of the pool wall bricks near the platinum conduit can be protected, avoiding rapid erosion and damage of the pool wall bricks near the platinum conduit by the glass melt, extending the life of the pool wall bricks and reducing the frequency of kiln shutdown and repair.

[0025] 2. The cooling structure cools the pool wall bricks to further improve their stability; at the same time, by energizing the platinum conduit and adjusting the heating current in real time, the temperature of the glass melt inside the platinum conduit is kept stable, preventing drastic temperature changes, improving energy efficiency, and enhancing glass quality. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention.

[0027] Figure 2 for Figure 1 A diagram from another angle.

[0028] Figure 3 This is a cross-sectional view of Embodiment 1 of the present invention.

[0029] Figure 4 This is a schematic diagram showing the state of the pool wall bricks after erosion.

[0030] Figure 5 This is a block diagram illustrating the control principle of the present invention.

[0031] In the figure: 1—Kiln body, 2—Platinum conduit, 31—Rigid support layer, 32—Heat insulation layer, 4—Front baffle, 5—Rear baffle, 6—Cooling brick, 7—Cooling pipe, 8—First temperature sensor, 9—Second temperature sensor, 10—Conductive flange. Detailed Implementation

[0032] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to represent selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0034] It should be noted that similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figures, or the orientation or positional relationship commonly used when the product is in use. They are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. In addition, the terms "horizontal," "vertical," etc., do not indicate that the component is required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted. In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0035] In this plan, such as Figures 1 to 5 As shown, taking the platinum conduit 2 as a reference, the end of it that extends into the kiln body 1 is the front end, and the end that is outside the kiln body 1 is the rear end; correspondingly, the inner side of the side wall brick of the kiln body 1 is the side closer to the front end of the platinum conduit 2, and the outer side is the side closer to the rear end of the platinum conduit 2.

[0036] Example: See Figures 1 to 4A cooling and protection system for the connection between a kiln and a channel includes a kiln body 1 and a platinum conduit 2. The kiln body 1 is constructed of pool wall bricks, and flow holes are formed in the pool wall bricks at the bottom of the kiln body 1. The front end of the platinum conduit 2 passes through the flow holes and extends into the kiln body 1.

[0037] A front baffle 4 and a rear baffle 5 are fitted onto the platinum conduit 2. The front baffle 4 is located inside the furnace body 1, and the rear baffle 5 is located outside the furnace body 1. Both the front baffle 4 and the rear baffle 5 are fitted into the pool wall bricks. The front baffle 4 prevents the pool wall bricks from being directly eroded by the swirling molten glass, thereby extending the life of the pool wall bricks. The rear baffle 5 prevents molten glass from leaking directly from the erosion points of the pool wall bricks. The front baffle 4 and the rear baffle 5 are made of platinum or platinum-rhodium materials, which improves the strength, stability, and high-temperature resistance of the pool wall brick protection structure and allows for better connection (welding) and fixation with the platinum conduit 2. The front baffle 4 and the rear baffle 5 have through holes in their middle or lower parts, through which they are fitted onto the platinum conduit 2 and fixedly connected to it. The distance between the outer edges of the front baffle 4 and the rear baffle 5 (where the edge of the through hole is the inner edge and the edge away from the through hole is the outer edge) and the outer wall of the platinum conduit 2 is 20-200mm, and the area of ​​the rear baffle 5 is larger than the area of ​​the front baffle 4. Based on past experience with the equipment, the erosion caused by the swirling flow of molten glass is mainly located at the top of the platinum conduit 2. Therefore, during actual processing, the distance between the top edges of the front baffle 4 and the outer wall of the platinum conduit 2 is greater than the distance between the sides and bottom edges of the front baffle 4 and the outer wall of the platinum conduit 2. Preferably, the distance between the top of the front baffle 4 and the rear baffle 5 and the platinum conduit 2 is 20-200mm greater than the distance between the sides and the bottom edges; this more effectively slows down the erosion rate of the molten glass on the pool wall bricks. Depending on the erosion conditions of the pool wall bricks in different furnace bodies 1, front baffles 4 and rear baffles 5 of different shapes can be provided, such as circular, rectangular, or elliptical shapes, to more effectively prevent erosion by the molten glass. Specifically, since the rear baffle plays a role in preventing leakage of molten glass, in this design, when both the front baffle 4 and the rear baffle 5 are circular, the diameter of the rear baffle 5 is 1.2 to 3 times the diameter of the front baffle 4. This can effectively extend the time before the rear side of the pool wall bricks is eroded through, thereby extending the service life of the pool wall bricks. The circular shape of the front baffle 4 and the rear baffle 5 makes the overall structure easier to process and provides better protection for the pool wall bricks.

[0038] A cooling structure is provided on the portion of the platinum conduit 2 located on the outer side of the furnace body 1, and the side of this cooling structure closest to the furnace body 1 is in contact with the rear baffle 5. The contact between the cooling structure and the rear baffle reduces the temperature of the furnace wall bricks, thereby further slowing down the erosion rate of the molten glass. A filling layer is provided on the platinum conduit 2 (its inner side tightly attached to its inner wall), and this filling layer is at least located at the points where the platinum conduit 2 corresponds to the furnace wall bricks and the cooling structure; thus effectively supporting and protecting the platinum conduit 2. Specifically, the filling layer corresponding to the furnace wall bricks is a rigid support layer 31, and the filling layer corresponding to the cooling structure is a heat insulation layer 32. This design uses the rigid support layer 31 to support the platinum conduit 2, preventing deformation and breakage, and the heat insulation layer 32 to isolate heat conduction between the inner and outer layers, reducing the cooling rate of the molten glass by the cooling bricks.

[0039] In other implementations, the filling layer completely fills the corresponding area, but under the above installation method of the filling layer, there are different ways to define the boundary of the thermal insulation layer 32:

[0040] In this embodiment, the filling layer located in front of the junction between the cooling structure and the rear baffle is a rigid support layer 31, and the filling layer located behind the junction between the cooling structure and the pool wall bricks is a thermal insulation layer 32. Because the rigid support layer 31 is longer, this design allows for better stability of the platinum conduit 2.

[0041] In other embodiments, the front end of the thermal insulation layer 32 extends between the inner and outer sides of the pool wall bricks (as an optimization, the front end of the thermal insulation layer 32 is closer to the rear side of the pool wall bricks), and the portion of the filling layer located in front of the thermal insulation layer 32 is a rigid support layer 31. In this embodiment, the thermal insulation layer 32 extends to the front side of the junction between the cooling structure and the pool wall bricks, thereby pre-insulating the molten glass and improving its temperature stability. In implementation, the rigid support layer 31 is formed by curing alumina hollow sphere powder with water, or by processing corundum bricks; the thermal insulation layer 32 uses insulation cotton or a ring-shaped insulation board. This makes the overall structure easier and faster to manufacture, and also lowers the cost.

[0042] This design employs a platinum conduit 2 with its front end protruding from the flow channel, allowing the molten glass to flow directly through the conduit without directly eroding the flow channel. A front baffle 4 is installed on the inner side of the pool wall bricks to isolate the molten glass vortex from direct erosion of the pool wall bricks, effectively protecting the circumferential pool wall bricks at the flow channel inlet. A rear baffle 5 is installed on the outer side of the pool wall bricks. Even after prolonged use, when the molten glass erodes the pool wall bricks, the rear baffle 5, being in close contact with the outer wall, requires more time for the molten glass to erode until it exceeds the protective boundary of the rear baffle, thus significantly extending the lifespan of the pool wall bricks. Simultaneously, a cooling structure is installed on the outer side of the pool wall bricks to cool them, further reducing the erosion rate of the molten glass, improving the stability of the pool wall bricks, and decreasing the frequency of kiln shutdowns and repairs, thereby improving production stability.

[0043] In practice, the length of the platinum conduit 2 located on the front side of the front baffle 4 is 10-50 cm. This ensures that the position where the molten glass enters the platinum conduit 2 is at a certain distance from the inner wall of the pool wall brick, thus creating a certain gap between the flow position of the high-temperature molten glass (the generated eddy current) and the inner wall of the pool wall brick. This prevents the inner wall of the pool wall brick from being eroded by the high-temperature molten glass for a long time, thereby improving the service life of the pool wall brick.

[0044] In this embodiment, the cooling structure includes a cooling brick 6 and a cooling pipe 7. The cooling brick 6 has a through hole and is fitted onto the platinum conduit 2 through the through hole, and is in close contact with the rear baffle 5. A cooling groove is provided around the cooling brick 6, and the cooling pipe 7 is wound around the cooling groove. Both ends of the cooling pipe 7 are connected to a circulating cooling system to provide a flowing cooling medium for the cooling pipe 7. The circulating cooling system is a mature existing technology, such as a circulating liquid cooling system. The cooling medium cools the cooling brick, and then the cooling brick 6 cools the rear baffle 5 and the pool wall bricks, so that the closer the molten glass is to the rear baffle 5, the lower the temperature and the weaker the corrosive ability, thereby further extending the life of the pool wall bricks. At the same time, the cooling brick can also cool the platinum conduit 2 to protect it.

[0045] During implementation, a first temperature sensor 8 is installed between the rear baffle 5 and the cooling brick; it is used to detect the temperature on the outside of the pool wall brick in real time, so as to control the flow rate of the cooling medium in the cooling pipe 7 in real time, thereby ensuring the cooling effect.

[0046] See Figure 5In specific implementation, the system also includes a controller and a first actuator. The first actuator is connected to the cooling pipe 7. In this scheme, the first actuator (using a pump) is located between one end of the cooling pipe 7 and the circulating cooling system to control the flow rate of the cooling medium in the cooling pipe 7. Both the first temperature sensor 8 and the first actuator are connected to the controller. The temperature of the outer side of the pool wall bricks is transmitted to the controller in real time through the temperature sensor on the rear baffle 5. In the early stage of glass melt erosion, the first actuator controls the cooling medium in the cooling pipe 7 to operate at a low speed to reduce energy consumption; in the later stage of glass melt erosion, the cooling medium in the cooling pipe 7 operates at a high speed to reduce the temperature of the glass melt and slow down the erosion rate of the pool wall bricks. In other embodiments, the first actuator can be a pump or a flow control valve.

[0047] In implementation, a heating structure is also provided on the portion of the platinum conduit 2 located on the side of the cooling structure away from the furnace body 1. Heating the platinum conduit 2 through this heating structure raises the temperature of the molten glass flowing through the cooling structure, maintaining a stable temperature within the platinum conduit and improving glass quality. Specifically, the heating structure includes two conductive flanges 10, both of which are fitted onto and fixedly connected to the platinum conduit 2. One conductive flange 10 is closer to the cooling structure, and the other is closer to the rear end of the platinum conduit 2. Thus, when the two conductive flanges 10 are energized, the platinum conduit 2 becomes a heating connection mechanism, thereby heating the molten glass, compensating for the temperature of the molten glass flowing through the cooling structure, and ensuring the required temperature of the molten glass.

[0048] In practice, a second temperature sensor 9 is provided on the portion of the platinum conduit 2 located behind the filler layer. The second temperature sensor 9 is either directly mounted on the surface of the platinum conduit 2, or a temperature sensor mounting hole is provided on the platinum conduit 2, and the second temperature sensor 9 is mounted in the mounting hole with its detection end extending into the inside of the platinum conduit 2; this is used to detect the temperature of the flowing molten glass in real time.

[0049] In the specific implementation, a second actuator is also included. The second temperature sensor 9 and the second actuator are connected to the controller. The second actuator is connected to two conductive flanges 10 to control the current flowing through the two conductive flanges 10. The controller, based on the temperatures collected by the two temperature sensors, drives the second actuator to adjust the voltage or current of the platinum conduit to maintain a stable glass melt temperature and improve the quality of the glass melt. In the specific implementation, the second actuator is either a transformer or a rheostat. When a transformer is used, the second actuator provides voltage to the platinum conduit through the two conductive flanges 10 to adjust the voltage of the platinum conduit. When a rheostat is used, the second actuator is connected in series with the platinum conduit to adjust the current in the platinum conduit.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit the technical solutions. Those skilled in the art should understand that any modifications or equivalent substitutions to the technical solutions of the present invention without departing from the spirit and scope of the present invention should be covered within the scope of the claims of the present invention.

Claims

1. A cooling protection system for the connection between a kiln and a channel, comprising a kiln body and a platinum conduit, wherein the kiln body is constructed of pool wall bricks, and flow holes are formed in the pool wall bricks at the bottom of the kiln body; characterized in that: The front end of the platinum conduit passes through the flow hole and extends into the kiln body. A front baffle and a rear baffle are fitted onto the platinum conduit. The front baffle is located inside the kiln body, and the rear baffle is located outside the kiln body. Both the front and rear baffles are fitted to the pool wall bricks. A cooling structure is provided on the portion of the platinum conduit located outside the kiln body, and the side of the cooling structure closest to the kiln body is fitted to the rear baffle. The platinum conduit is provided with a filling layer, which is provided at least at the locations where the platinum conduit corresponds to the pool wall bricks and the cooling structure of the kiln body.

2. The cooling protection system at the connection between the kiln and the passage according to claim 1, characterized in that: The length of the platinum conduit located on the front side of the front baffle is 10-50 cm.

3. The cooling protection system at the connection between the kiln and the passage according to claim 1, characterized in that: The front and rear baffles are provided with through holes and are fitted onto the platinum conduit through these through holes and are fixedly connected to the platinum conduit; the distance between the outer edge of the front and rear baffles and the outer wall of the platinum conduit is 20-200mm, and the area of ​​the rear baffle is larger than that of the front baffle.

4. The cooling protection system at the connection between the kiln and the passage according to claim 3, characterized in that: When both the front and rear baffles are circular, the diameter of the rear baffle is 1.2 to 3 times the diameter of the front baffle.

5. A cooling protection system for the connection between a kiln and a passageway according to claim 1, characterized in that: The front and rear baffles are made of platinum or platinum-rhodium materials.

6. The cooling protection system at the connection between the kiln and the passage according to claim 1, characterized in that: The filling layer located in front of the junction between the cooling structure and the rear baffle is a rigid support layer, while the filling layer located behind the junction between the cooling structure and the pool wall bricks is a heat insulation layer.

7. A cooling protection system for the connection between a kiln and a passageway according to claim 1, characterized in that: The part of the filling layer corresponding to the cooling structure is the heat insulation layer, and the front end of the heat insulation layer extends to the area between the inner and outer sides of the pool wall bricks. The part of the filling layer located in front of the heat insulation layer is a rigid support layer.

8. A cooling protection system for the connection between a kiln and a passageway according to claim 6 or 7, characterized in that: The rigid support layer is formed by curing alumina hollow sphere powder with water or by processing corundum bricks, and the heat insulation layer is made of insulation cotton or annular insulation board.

9. A cooling protection system for the connection between a kiln and a passageway according to claim 1, characterized in that: The cooling structure includes a cooling brick and a cooling pipe. The cooling brick has a through hole and is fitted onto a platinum conduit through the through hole, and is in close contact with the rear baffle. A cooling groove is provided around the cooling brick, and the cooling pipe is wound around the cooling groove. Both ends of the cooling pipe are connected to a circulating cooling system to provide a flowing cooling medium for the cooling pipe.

10. A cooling protection system for the connection between a kiln and a passageway according to claim 9, characterized in that: A first temperature sensor is installed between the rear baffle and the cooling brick.

11. A cooling protection system for the connection between a kiln and a passageway according to claim 10, characterized in that: It also includes a controller and a first actuator, the first actuator being connected to a cooling pipe and used to control the flow rate of the cooling medium in the cooling pipe; both the first temperature sensor and the first actuator are connected to the controller.

12. A cooling protection system for the connection between a kiln and a passageway according to claim 11, characterized in that: A heating structure is also provided on the part of the platinum conduit located on the side of the cooling structure away from the kiln body.

13. A cooling protection system for the connection between a kiln and a passageway according to claim 12, characterized in that: The heating structure includes two conductive flanges, both of which are fitted onto the platinum conduit and fixedly connected to it. One conductive flange is close to the cooling structure, and the other conductive flange is close to the rear end of the platinum conduit.

14. A cooling protection system for the connection between a kiln and a passageway according to claim 13, characterized in that: The platinum conduit has a second temperature sensor located on the portion behind the filler layer.

15. A cooling protection system for the connection between a kiln and a passageway according to claim 14, characterized in that: It also includes a second actuator, which is connected to the controller. The second actuator is used to control the voltage or the magnitude of the current flowing through the platinum conduit.

Images