Glass furnace electrode brick propelling method and propelling system
By setting up a temperature measuring device in the electrode brick, calculating the erosion amount based on the temperature changes, and accurately advancing the position of the electrode brick, the problem of inaccurate erosion of the electrode brick is solved, and the reliability and life of the glass furnace are improved.
Patent Information
- Application Number
- CN202311822963.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-27
- Publication Date
- 2025-07-08
AI Technical Summary
The erosion of electrode bricks in existing glass furnaces cannot be accurately grasped, resulting in reduced electrical energy utilization efficiency, shortened furnace life, and inaccurate propulsion distance dependence on experience.
Set up a temperature measurement device in the electrode brick, calculate the erosion amount through temperature changes, accurately push the electrode brick to restore the original position, and use a PID controller to ensure propulsion accuracy.
The accuracy of the propulsion distance of the electrode brick is achieved, the reliability and life of the glass furnace is improved, the number of shutdowns is reduced, and the production efficiency is improved.
Smart Images
Figure CN120271207A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of flat glass manufacturing, and in particular to a method and system for advancing electrode bricks in a glass melting furnace. Background Art
[0002] During the production process of glass substrates for displays, a glass furnace is required to make molten glass. Most glass furnaces usually use electricity to heat the molten glass. At this time, electrode bricks are needed to transmit electricity to the molten glass. The existing electrode bricks are mainly tin oxide electrode bricks or molybdenum electrode bricks. During the use of the glass furnace, current will be loaded between the electrodes, and the loss of electrode bricks is inevitable. At the same time, the refractory materials around the electrodes will also be lost, resulting in the erosion rate of electrode bricks much higher than that of the pool wall bricks. However, when the electrode bricks are eroded and are not on the same horizontal plane as the pool wall bricks, the electricity provided by the electrodes will not be able to play its maximum role, and the pool wall bricks will also be continuously washed by the glass liquid, which will directly lead to an increase in the power consumption of the melting furnace, greatly reducing the heating effect, and shortening the life of the glass furnace.
[0003] In the prior art, in order to cope with the loss of electrode bricks, electrode bricks are often pushed forward a certain distance to meet production needs according to the age or cycle of electrode brick erosion. However, this method cannot grasp the specific amount of erosion. The distance the electrode bricks are pushed forward is entirely based on experience, and the accuracy of the amount of advancement cannot be guaranteed, resulting in unstable process conditions.
[0004] Therefore, there is an urgent need to provide a new glass melting furnace electrode brick propulsion method and propulsion system to solve the above-mentioned technical problems in the prior art. Summary of the invention
[0005] One object of the present invention is to provide a method for advancing electrode bricks in a glass melting furnace, which can ensure the accurate advancement distance of the electrode bricks, effectively ensure that the electrode bricks return to their original positions after wear and tear, thereby improving the reliability of the glass melting furnace and increasing the service life of the glass melting furnace.
[0006] To achieve this object, the present invention adopts the following technical solutions:
[0007] The glass melting furnace electrode brick advancing method comprises the steps of:
[0008] S1. A temperature measuring device is arranged inside the electrode brick, and the distance between the temperature measuring device and the outer side wall of the glass melting furnace remains unchanged, and the temperature T1 measured by the temperature measuring device when the glass melting furnace is used for the first time is recorded;
[0009] S2, after the glass melting furnace has been used for a preset time, the temperature T2 measured by the temperature measuring device is recorded again;
[0010] S3. Calculate the erosion amount of the above electrode bricks according to ΔT = T2 - T1;
[0011] S4. Push the above electrode bricks by a preset distance ΔL, and record the temperature T3 measured by the above temperature measuring device again until T3 = T1, then stop pushing.
[0012] Optionally, a fixed bracket is fixedly arranged outside the glass furnace, and the above temperature measuring device is fixed on the fixed bracket and extends into the above electrode bricks.
[0013] Optionally, a temperature measuring blind hole is arranged along the length direction of the above electrode bricks on one side of the above electrode bricks outside the glass furnace, and the above temperature measuring device is accommodated in the temperature measuring blind hole.
[0014] Optionally, the above temperature measuring device is an insertion type thermocouple, and a water-cooled circulation protection sleeve is clamped between the temperature measuring device and the temperature measuring blind hole.
[0015] Optionally, an insulating board is sleeved on the part of the above temperature measuring device exposed outside the temperature measuring blind hole.
[0016] Optionally, a support frame is fixedly connected to the external ground of the above glass furnace, and the above fixed bracket is fixedly connected to the support frame.
[0017] Optionally, in step S1, the above temperature measuring device is arranged inside the above electrode bricks that are most severely eroded.
[0018] Optionally, the above temperature measuring device is communicatively connected to a display, and the display is used to display the temperature data measured by the above temperature measuring device in real time.
[0019] Optionally, in step S4, an electrode pushing device is used to push the above electrode bricks into the glass furnace by the above preset distance ΔL.
[0020] Another object of the present invention is to provide a glass furnace electrode brick pushing system, which uses the glass furnace electrode brick pushing method described in any of the above solutions, and includes a temperature measuring device and a fixed bracket fixed outside the glass furnace. The above temperature measuring device is fixed on the fixed bracket. A temperature measuring blind hole is arranged along the length direction of the above electrode bricks on one side of the electrode bricks of the above glass furnace outside the glass furnace, and the above temperature measuring device is arranged in the temperature measuring blind hole.
[0021] Beneficial effects:
[0022] The present invention first provides a temperature measuring device inside the electrode brick. The temperature measuring device measures the temperature in real time and obtains the internal temperature T1 of the electrode brick when the glass furnace is first used. During the use of the glass furnace, the side wall of the electrode brick located inside the glass furnace is gradually eroded and worn, and the internal temperature measured by the temperature measuring device gradually increases. After a certain period of time, the internal temperature is measured to be T2. According to ΔT = T2 - T1, it can be known that the erosion amount of the above-mentioned electrode brick has reached the preset value. At this time, the electrode brick needs to be pushed in to compensate for the erosion amount. The electrode brick is continuously pushed inward until the internal temperature T3 of the electrode brick measured by the temperature measuring device is the same as the original temperature T1. At this time, it can be indicated that the inner wall surface of the electrode brick has reached the position at the first use, and the pushing of the electrode brick can be completed. The temperature measuring device continues to monitor at the original position until the electrode brick needs to be pushed again. This method for pushing the electrode brick of the glass furnace can push the electrode brick to displace a certain distance according to the temperature change without complicated formula calculations for the loss of the electrode brick, ensuring the accurate pushing distance of the electrode brick, effectively ensuring that the electrode brick returns to the original position after loss, improving the use reliability of the glass furnace and extending the service life of the glass furnace. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 is an axonometric view of the electrode brick pushing system of the glass furnace provided by the specific embodiment of the present invention;
[0024] Figure 2 is the front view of the electrode brick pushing system of the glass furnace provided by the specific embodiment of the present invention;
[0025] Figure 3 is Figure 2 the sectional view at A - A in
[0026] Figure 4 is Figure 3 the partial enlarged view at B in
[0027] In the figure:
[0028] 100, electrode brick; 110, temperature measuring blind hole; 120, water cooling plate;
[0029] 200, temperature measuring device; 210, water cooling circulation protection sleeve; 220, insulating plate;
[0030] 310, fixed bracket; 320, support frame. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0031] The present invention will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present invention, rather than limiting the present invention. In addition, it should be noted that, for the sake of description, only parts related to the present invention are shown in the drawings, not all structures.
[0032] In the description of the present invention, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.
[0033] In the present invention, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "over", and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "beneath", and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.
[0034] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "right", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.
[0035] As described above, during the use and heating of the glass furnace, the erosion of the electrode brick 100 is faster than that of the tank wall brick. When the electrode brick 100 erodes and becomes shorter, the electrode brick 100 will sink into the tank wall brick. And when the current is transmitted to the molten glass, it is in a divergent state. As the electrode brick 100 continuously erodes and becomes shorter, the tank wall brick around the electrode brick 100 will be eroded, resulting in the tank wall brick around the electrode brick 100 being eroded faster than the tank wall brick in other parts, making the tank wall brick in this part thinner and seriously affecting the service life of the glass furnace. And through the method for pushing the electrode brick 100 of the glass furnace provided in this embodiment, pushing the electrode brick 100 into the furnace after the temperature change reaches the preset value can effectively avoid the weakness of the tank wall brick around the electrode brick 100 caused by the erosion of the electrode brick 100, thereby increasing the service life of the furnace.
[0036] Please refer to Figures 1 to 4 , in this embodiment, the method for pushing the electrode brick 100 of the glass furnace includes the steps:
[0037] S1. A temperature measuring device 200 is provided inside the electrode brick 100, and the distance between the temperature measuring device 200 and the outer side wall of the glass melting furnace remains unchanged. Record the temperature T1 measured by the temperature measuring device 200 when the glass melting furnace is used for the first time.
[0038] S2. After the glass melting furnace is used for a preset time, record the temperature T2 measured by the temperature measuring device 200 again.
[0039] S3. Calculate the erosion amount of the electrode brick 100 according to ΔT = T2 - T1.
[0040] S4. Push the electrode brick 100 by a preset distance ΔL, and record the temperature T3 measured by the temperature measuring device 200 again until T3 = T1 and then stop pushing.
[0041] In this embodiment, first, a temperature measuring device 200 is provided inside the electrode brick 100. The temperature measuring device 200 measures the temperature in real time and obtains the internal temperature T1 of the electrode brick 100 when the glass melting furnace is used for the first time. During the use of the glass melting furnace, the side wall of the electrode brick 100 located inside the glass melting furnace is gradually eroded and worn, and the internal temperature measured by the temperature measuring device 200 gradually increases. After a certain period of time, the internal temperature is measured as T2. According to ΔT = T2 - T1, it can be known that the erosion amount of the electrode brick 100 has reached the preset value. At this time, it is necessary to push the electrode brick 100 to make up for the erosion amount. Continuously push the electrode brick 100 inward until the internal temperature T3 of the electrode brick 100 measured by the temperature measuring device 200 is the same as the original temperature T1. At this time, it can be indicated that the inner wall surface of the electrode brick 100 has reached the position at the first use, and the pushing of the electrode brick 100 can be completed. The temperature measuring device 200 continues to monitor at the original position until the electrode brick 100 needs to be pushed again. The method for pushing the electrode brick 100 of the glass melting furnace does not require complex formula calculations for the loss of the electrode brick 100, and the electrode brick 100 can be pushed by a certain distance according to the temperature change, ensuring the accurate pushing distance of the electrode brick 100, effectively ensuring that the electrode brick 100 returns to the original position after loss, improving the use reliability of the glass melting furnace and extending the service life of the glass melting furnace.
[0042] Specifically, in step S1, the temperature measuring device 200 is arranged inside the electrode brick 100 that is most severely eroded. Such a setting can enable the electrode brick 100 to be pushed when it is used to the limit, give full play to all the electrode bricks 100, effectively extend the service life of the glass melting furnace, reduce the number of times of pushing the electrode brick 100, thereby reducing the number of shutdowns and improving the production efficiency.
[0043] As a preferred embodiment, in step S4, the electrode brick 100 is pushed into the glass furnace by the electrode pushing device by the preset distance ΔL. The electrode pushing device can be a hydraulic pushing device or a mechanical pushing device. The control system is selected as a PID controller (Proportion Integration Differentiation) in this embodiment. When the electrode pushing device is adopted, the control system can send the electrode pushing amount to the electrode pushing device, and the electrode pushing device receives the electrode pushing amount data and pushes the electrode brick 100 according to the electrode pushing amount, so that the pushing distance and the pushing position are more accurate.
[0044] Please continue to refer to Figures 1 to 4 , in this embodiment, a glass furnace electrode brick 100 pushing system is further provided. The glass furnace electrode brick 100 pushing system uses the glass furnace electrode brick 100 pushing method described in any of the above solutions. The glass furnace electrode brick 100 pushing system includes a temperature measuring device 200 and a fixing bracket 310 fixed outside the glass furnace. The temperature measuring device 200 is fixed on the fixing bracket 310. A temperature measuring blind hole 110 is formed along the length direction of the electrode brick 100 on one side of the electrode brick 100 outside the glass furnace, and the temperature measuring device 200 is arranged in the temperature measuring blind hole 110.
[0045] When the glass furnace electrode brick 100 pushing system uses the above glass furnace electrode brick 100 pushing method to push the electrode brick 100, it can judge whether the electrode brick 100 is pushed in place according to the temperature change, without complicated formula calculation of the loss amount and the pushing distance of the electrode brick 100, ensuring the accuracy of the pushing distance of the electrode brick 100, effectively ensuring that the electrode brick 100 returns to the original position after loss, improving the use reliability of the glass furnace and extending the service life of the glass furnace.
[0046] Furthermore, please refer to Figures 1 to 3 , a fixing bracket 310 is fixedly arranged outside the glass furnace, and the fixing bracket 310 fixes the temperature measuring device 200 extending into the electrode brick 100. Using the fixing bracket 310 to install the temperature measuring device 200 can ensure that the position of the temperature measuring device 200 remains relatively unchanged, and ensure that the distance between the temperature measuring device 200 and the molten glass inside the glass furnace remains unchanged. That is, during the pushing process of the electrode brick 100, the real-time temperature T3 measured by the temperature measuring device 200 is only consistent with the original temperature T1 when the electrode brick 100 returns to the original position, ensuring the accuracy of the pushing position of the electrode brick 100.
[0047] As a preferred embodiment, a support frame 320 is fixedly connected to the external ground of the above glass melting furnace, and the above fixed bracket 310 is fixedly connected to the support frame 320. The support frame 320 is fixed to the ground, which can connect the fixed bracket 310 to the ground, further ensuring that the position of the temperature measuring device 200 remains unchanged, so that the real-time temperature T3 measured by the temperature measuring device 200 is consistent with the original temperature T1 only when the electrode brick 100 returns to its original position, ensuring the accurate advancement position of the electrode brick 100.
[0048] In this embodiment, a water-cooled plate 120 is attached to one side wall of the end of the electrode brick 100 located outside the glass melting furnace, so as to cool the electrode brick 100, reduce the erosion of the electrode brick 100 by the glass liquid, and further extend the service life of the electrode brick 100 and the glass melting furnace.
[0049] Furthermore, the above temperature measuring device 200 is communicatively connected to a display, and the display is used to display the temperature data measured by the above temperature measuring device 200 in real time. The setting of the display facilitates the operator to directly read the temperature measurement data of the temperature measuring device 200. During the process of advancing the electrode brick 100, real-time monitoring is carried out, reducing the difficulty of collecting temperature data, facilitating the operator to perform the advancement operation of the electrode brick 100, and ensuring the accuracy of the advancement position and advancement distance of the electrode brick 100.
[0050] As Figure 4 shown, specifically, a temperature measuring blind hole 110 is provided on one side of the above electrode brick 100 located outside the above glass melting furnace and extends along the length direction of the electrode brick 100, and the above temperature measuring device 200 is accommodated in the temperature measuring blind hole 110. The temperature measuring blind hole 110 extends along the length direction of the electrode brick 100, that is, along the direction in which the electrode brick 100 is to be advanced, which can enable the temperature measuring device 200 to slide along the inner wall of the temperature measuring blind hole 110, ensuring the stability when the electrode brick 100 is advanced and the position of the temperature measuring device 200 remains unchanged, and ensuring the accuracy of the position and advancement distance of the electrode brick 100 after advancement.
[0051] In this embodiment, the above temperature measuring device 200 is an inserted thermocouple, and a water-cooled circulation protection sleeve 210 is clamped between the temperature measuring device 200 and the temperature measuring blind hole 110. The inserted thermocouple can be directly inserted into the temperature measuring blind hole 110 for measurement, which is convenient for installation and disassembly, and the inserted thermocouple has a wide temperature measurement range and high temperature measurement accuracy, and can accurately and real-time obtain the internal temperature of the electrode brick 100; the water-cooled circulation protection sleeve 210 can effectively protect the internal inserted thermocouple from being damaged by high temperature, and improves the service life of the inserted thermocouple and the electrode brick 100 propulsion system in this embodiment.
[0052] Return to reference Figure 3, an insulating plate 220 is sleeved on the part of the above temperature measuring device 200 exposed outside the above temperature measuring blind hole 110. The insulating plate 220 can provide insulation protection for the temperature measuring device 200, that is, the part of the inserted thermocouple exposed outside, preventing external devices or operators from contacting the exposed part of the temperature measuring device 200 and preventing the occurrence of electric shock accidents, thus improving the use safety.
[0053] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limiting the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.
Claims
1. A method for pushing electrode bricks in a glass melting furnace, characterized in that, Including the steps: S1. A temperature measuring device (200) is arranged inside the electrode brick (100), and the distance between the temperature measuring device (200) and the outer side wall of the glass melting furnace remains unchanged. Record the temperature T1 measured by the temperature measuring device (200) when the glass melting furnace is first used. S2. After the glass melting furnace is used for a preset time, record the temperature T2 measured by the temperature measuring device (200) again. S3. Calculate the erosion amount of the electrode brick (100) according to ΔT=T2-T1. S4. Push the electrode brick (100) by a preset distance ΔL, and record the temperature T3 measured by the temperature measuring device (200) again until T3=T1 and then stop pushing.
2. The method for pushing the electrode brick of the glass melting furnace according to claim 1, characterized in that, A fixed bracket (310) is fixedly arranged outside the glass melting furnace, and the fixed bracket (310) fixes the temperature measuring device (200) extending into the electrode brick (100).
3. The method for pushing the electrode brick of the glass melting furnace according to claim 2, characterized in that, On one side of the electrode brick (100) outside the glass melting furnace, a temperature measuring blind hole (110) is formed along the length direction of the electrode brick (100), and the temperature measuring device (200) is accommodated in the temperature measuring blind hole (110).
4. The method for pushing the electrode brick of the glass melting furnace according to claim 3, characterized in that, The temperature measuring device (200) is an inserted thermocouple, and a water-cooled circulation protection sleeve (210) is clamped between the temperature measuring device (200) and the temperature measuring blind hole (110).
5. The method for pushing the electrode brick of the glass melting furnace according to claim 4, characterized in that, An insulating plate (220) is sleeved on the part of the temperature measuring device (200) exposed outside the temperature measuring blind hole (110).
6. The method for pushing the electrode brick of the glass melting furnace according to claim 2, characterized in that, A support frame (320) is fixedly connected to the external ground of the glass melting furnace, and the support frame (320) is fixedly connected to the fixed bracket (310).
7. The method for pushing the electrode brick of the glass melting furnace according to any one of claims 1-6, characterized in that, In step S1, the temperature measuring device (200) is arranged inside the electrode brick (100) with the most serious erosion.
8. The method for pushing the electrode brick of the glass melting furnace according to any one of claims 1-6, characterized in that, The temperature measuring device (200) is communicatively connected to a display, and the display is used to display the temperature data measured by the temperature measuring device (200) in real time.
9. The method for pushing the electrode bricks of a glass melting furnace according to any one of claims 1-6, characterized in that, In step S4, an electrode pushing device is used to push the electrode brick (100) into the glass melting furnace by the preset distance ΔL.
10. Glass melting furnace electrode brick propulsion system, characterized in that, Using the method for pushing the electrode brick of the glass melting furnace according to any one of claims 1-9, including a temperature measuring device (200) and a fixed bracket (310) fixed outside the glass melting furnace, the temperature measuring device (200) is fixed on the fixed bracket (310), a temperature measuring blind hole (110) is formed along the length direction of the electrode brick (100) on one side of the electrode brick (100) of the glass melting furnace outside the glass melting furnace, and the temperature measuring device (200) is arranged in the temperature measuring blind hole (110).