Glass liquid level control device and glass production line

Abstract

The utility model provides a kind of glass liquid level control device and glass production line, it is related to glass production equipment technical field.Glass liquid level control device is installed in glass liquid storage tank, including float ball, control lever and sensor, the control lever is located at the filling opening of the glass liquid storage tank, the middle part of the control lever is rotatably connected with the lateral wall of the glass liquid storage tank, one end of the control lever is inserted into the filling opening and connected with the float ball, the float ball floats on the liquid level of glass liquid, the other end of the control lever is located outside the glass liquid storage tank, and inductive sheet for triggering the sensor is connected, the sensor is connected with the lateral wall of the glass liquid storage tank, and the sensor is used to be communicatively connected with feeding device.

Description

Technical Field

[0001] This utility model relates to the field of glass production equipment technology, and more specifically, to a glass liquid level control device and a glass production line. Background Technology

[0002] In a continuous production crucible glass melting furnace system, the molten glass is fed into a glass melt storage tank via a conveyor belt. The molten glass then flows continuously out of the central flow hole at the bottom of the tank. The glass level in the tank directly affects the glass pressure at the flow hole, and changes in this pressure affect the stability of the glass flow rate, thus impacting production stability.

[0003] Currently, the liquid level control of glass melt storage tanks suffers from low control accuracy and slow response speed. Especially when the glass melt level fluctuates significantly, it can lead to a mismatch between the feeding device and the liquid level control device, causing production interruptions or unstable product quality. Utility Model Content

[0004] The problem this invention addresses is: how to effectively control the liquid level of molten glass to ensure stable glass production.

[0005] To address the aforementioned problems, this utility model provides a glass melt level control device, installed in a glass melt storage tank, comprising a float, a control lever, and a sensor. The control lever is located at the inlet of the glass melt storage tank, with its middle portion rotatably connected to the side wall of the glass melt storage tank. One end of the control lever extends into the inlet and is connected to the float, which floats on the surface of the glass melt. The other end of the control lever is located outside the glass melt storage tank and is connected to a sensing element for triggering the sensor. The sensor is connected to the side wall of the glass melt storage tank and is used for communication with a feeding device.

[0006] Optionally, the control lever and the float each include a connected cooling water channel for receiving cooling water.

[0007] Optionally, the glass melt level control device further includes a counterweight connected to the end of the control lever away from the float, the counterweight being used to balance the weight of the float.

[0008] Optionally, the counterweight is detachably connected to the control lever.

[0009] Optionally, the portion of the control lever extending into the inlet is bent toward the bottom of the molten glass tank.

[0010] Optionally, the glass melt level control device further includes an auxiliary detection structure that is communicatively connected to the feeding device. The auxiliary detection structure is installed on the inner wall of the sealed cover of the glass melt storage tank. The portion of the control lever located below the sealed cover is provided with a trigger structure, which is used to trigger the auxiliary detection structure.

[0011] Optionally, the glass melt level control device further includes a connecting arm located outside the glass melt storage tank. One end of the connecting arm is connected to the control lever, and the other end extends to the bottom of the glass melt storage tank and is connected to the sensing plate. The sensor is located at the bottom of the glass melt storage tank.

[0012] Optionally, the limiting block is connected to the side wall and located on the rotation path of the control lever, and the limiting block is used to abut against the control lever to limit the rotation angle of the control lever.

[0013] Optionally, the surface of the float is covered with a ceramic coating.

[0014] Compared with the prior art, the glass melt level control device of this utility model has one end of a control lever that extends into the filling port and is connected to a float, while the other end of the control lever is located outside the glass melt storage tank and is equipped with a sensing element for triggering the sensor. The floating displacement of the float can be converted into the displacement of the sensing element through the control lever, so as to transmit the liquid level change by the control lever and directly feedback the liquid level change. The float is at least partially below the glass melt surface, so that the float directly contacts the liquid surface to ensure detection accuracy. In conjunction with the control lever, it converts the small liquid level change into a recognizable displacement signal, improves the detection sensitivity, and effectively maintains the liquid level stability through the communication connection between the sensor and the feeding device, thereby ensuring the constant hydraulic pressure at the flow orifice and ultimately achieving a continuous and stable output of glass melt flow rate.

[0015] In another aspect, this utility model provides a glass production line including a feeding device, a glass liquid storage tank, and a glass liquid level control device as described above.

[0016] Compared with existing technologies, the glass production line of this invention can sense changes in the liquid level of the molten glass storage tank in real time and automatically adjust the feeding amount through the synergistic effect of mechanical transmission and signal feedback, thereby maintaining a constant hydraulic pressure at the flow orifice. This not only reduces the frequency of manual intervention but also significantly improves the stability of the molten glass flow rate, ensuring the continuity of the production process and the consistency of the products. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the glass melt level control device in an embodiment of the present invention.

[0018] Explanation of reference numerals in the attached figures: 1-Float; 2-Control lever; 3-Sensor; 4-Induction plate; 5-Glass liquid storage tank; 6-Feeding device; 7-Counterweight; 8-Connecting arm. Detailed Implementation

[0019] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0020] In the attached diagram, the X-axis represents the horizontal position, with the positive direction of the X-axis indicating the left and the negative direction indicating the right. The Z-axis represents the vertical position, i.e., up and down, with the positive direction of the Z-axis indicating up and the negative direction indicating down. It should be noted that the aforementioned representations of the X and Z axes are merely for ease of description and simplification of the present invention, and do not indicate or imply that the device or component 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 present invention.

[0021] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this utility model 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 this utility model described herein can be implemented in sequences other than those illustrated or described herein.

[0022] Combination Figure 1 As shown, this embodiment of the present invention provides a glass liquid level control device, which is installed in a glass liquid storage tank 5. It includes a float 1, a control lever 2, and a sensor 3. The control lever 2 is located at the inlet of the glass liquid storage tank 5. The middle part of the control lever 2 is rotatably connected to the side wall of the glass liquid storage tank 5. One end of the control lever 2 extends into the inlet and is connected to the float 1. The float 1 floats on the surface of the glass liquid. The other end of the control lever 2 is located outside the glass liquid storage tank 5 and is connected to a sensing element 4 for triggering the sensor 3. The sensor 3 is connected to the side wall of the glass liquid storage tank 5 and is used for communication with a feeding device 6.

[0023] Specifically, float 1 refers to a hollow structure with buoyancy, which can be made of high-temperature resistant metal material. It moves with the rise and fall of the liquid level due to buoyancy. The middle part of the control lever 2 is rotatably connected to the side wall of the glass liquid storage tank 5 via a bearing seat. The control lever 2 converts the displacement of float 1 into the swing of the other end of the control lever 2 through the rotational connection point in the middle. Sensor 3 can be a magnetic induction sensor or a photoelectric sensor, which outputs an electrical signal based on the position change of the sensing element 4. The sensing element 4 is the metal piece that triggers the operation of sensor 3. It can be connected to the right end of control lever 2 and moves into or out of the detection range of sensor 3 as control lever 2 swings. Float 1 is partially immersed below the glass liquid surface to sensitively respond to small changes in the liquid level, while avoiding violent shaking due to impact from broken glass. Under the buoyancy of the glass liquid, when the liquid level drops, float 1 drives control lever 2 to rotate clockwise around the side wall connection point, causing the external sensing element 4 to approach sensor 3 and trigger a feeding signal; when the liquid level rises, float 1 pushes the lever to rotate counterclockwise, causing sensing element 4 to move away from sensor 3 and stop feeding. The pivot point at the center of the lever forms a fulcrum, amplifying the minute displacement of the float 1 end into a significant displacement of the sensing element 4 end. Sensor 3 converts the mechanical displacement into an electrical signal, which then controls the start and stop of the feeding device 6 via a communication line, forming a closed-loop feedback.

[0024] Therefore, in this embodiment, one end of the control lever 2 extends into the filling port and is connected to the float 1, while the other end of the control lever 2 is located outside the glass liquid storage tank 5 and is equipped with a sensing element 4 for triggering the sensor 3. The floating displacement of the float 1 can be converted into the displacement of the sensing element 4 through the control lever 2, so as to use the control lever 2 to transmit the liquid level change and directly feedback the liquid level change. The float 1 is partially located below the glass liquid surface, so that the float 1 directly contacts the liquid surface to ensure detection accuracy. This works in conjunction with the control lever 2 to convert minute liquid level changes into identifiable displacement signals, improve detection sensitivity, and effectively maintain liquid level stability through the communication connection between the sensor 3 and the feeding device 6, thereby ensuring constant hydraulic pressure at the flow orifice and ultimately achieving continuous and stable output of glass liquid flow rate.

[0025] Optionally, combined Figure 1 As shown, the control lever 2 and the float 1 each include a connected cooling water channel, which is used to connect to cooling water.

[0026] Specifically, the temperature of the molten glass reaches as high as 800 degrees Celsius. The cooling water channel refers to the fluid passage running through the control lever 2 and the float 1. This can be achieved using a hollow tubular structure or a built-in spiral flow channel, creating a circulation path for the cooling water within the metal components. The connecting structure refers to the cooling water channel between the control lever 2 and the float 1 being connected via flange joints or welded pipes. This can be achieved using high-temperature resistant sealing rings and threaded connections, ensuring leak-free transmission of the cooling medium between the lever and the float 1. When cooling water is injected into the inlet of the control lever 2 through an external pumping system, the water flows along the internal channel of the lever to the float 1. After heat exchange within the float 1, it returns to the circulation system through the outlet. Under high-temperature conditions, the flowing cooling water continuously absorbs the conductive heat generated by the control lever 2 in contact with the high-temperature molten glass, while simultaneously carrying away the radiant heat received by the float 1 when immersed in the molten glass.

[0027] Thus, by including interconnected cooling water channels in both the control lever 2 and the float 1, and with these channels used to receive cooling water, the internal cooling of the control lever 2 suppresses thermal expansion and deformation of the metal material, preventing increased frictional resistance at the pivot point due to dimensional changes. Simultaneously, internal cooling of the float 1 lowers its surface temperature, preventing creep or oxidation corrosion under long-term high-temperature conditions. The interconnected channels create a synchronous cooling circuit between the control lever 2 and the float 1, effectively reducing thermal stress accumulation in the high-temperature molten glass environment. This prevents dimensional deformation or mechanical degradation of the metal components due to thermal expansion, ensuring stable transmission accuracy and detection reliability of the level detection mechanism under continuous high-temperature conditions.

[0028] Optionally, combined Figure 1 As shown, the glass melt level control device also includes a counterweight 7, which is connected to the end of the control lever 2 away from the float 1. The counterweight 7 is used to balance the weight of the float 1.

[0029] Specifically, the counterweight 7 can be implemented using a metal block or a composite material block, and its mass is calculated to form a torque balance relationship with the weight of the float 1. The counterweight 7 adjusts its own weight to make the torques at both ends of the lever equal, eliminating the interference of the float 1's own weight on the rotation fulcrum. The counterweight 7 and the control lever 2 can be connected by a threaded connection or a snap-fit ​​structure, facilitating the adjustment of the number or position of the counterweight 7 according to the actual weight of the float 1. When the float 1 is immersed in the molten glass, buoyancy drives the control lever 2 to rotate around the fulcrum. The counterweight 7 is located at the right end of the control lever 2, generating a torque opposite to the weight of the float 1 through the lever principle, completely canceling out the torque generated by the float 1's own weight. At this time, the rotation of the control lever 2 is driven only by the buoyancy change caused by the liquid level change, avoiding lever offset caused by the float 1's own weight. When the liquid level drops, the buoyancy of the float 1 decreases, and the torque of the counterweight 7 causes the lever to rotate in the opposite direction, triggering the sensor 3; when the liquid level rises, the buoyancy increases, pushing the control lever 2 to rotate and reset.

[0030] Thus, by connecting the counterweight 7 to the end of the control lever 2 furthest from the float 1, the counterweight 7 balances the weight of the float 1 and eliminates the influence of the float 1's own weight on the rotational sensitivity of the control lever 2, ensuring that the rotation of the control lever 2 is entirely driven by changes in liquid level buoyancy. This avoids initial lever position deviation caused by the weight of the float 1, eliminates false triggering of the sensor 3, and ensures a strict correspondence between the liquid level detection signal and the actual liquid level height, thereby improving the stability and reliability of liquid level control.

[0031] Optionally, combined Figure 1 As shown, the counterweight 7 is detachably connected to the control lever 2.

[0032] Specifically, the counterweight 7 and the control lever 2 can be connected by a threaded fit, a snap-lock, or a pin positioning method. For example, a threaded rod can be provided at the end of the control lever 2, and a threaded hole can be opened in the center of the counterweight 7. The assembly and separation of the two can be achieved by screwing. During equipment maintenance, the counterweight 7 can be disassembled individually to reduce the load on the end of the lever and prevent the float 1 from shifting position due to the overall removal of the control lever 2. When the float 1 experiences a change in gravity due to long-term corrosion or wear, the gravity deviation of the float 1 can be compensated by increasing or decreasing the number of counterweights 7, thus restoring the balance of the lever system.

[0033] Thus, by detachably connecting the counterweight 7 to the control lever 2, when the liquid level control accuracy in the glass liquid storage tank 5 needs to be adjusted, the operator can remove the original counterweight 7 and replace it with a counterweight 7 of different mass to change the balance torque of the lever system, thereby adapting to the changing requirements of the liquid level detection sensitivity.

[0034] Optionally, combined Figure 1 As shown, the portion of the control lever 2 that extends into the inlet is bent toward the bottom of the glass liquid storage tank 5.

[0035] Specifically, the end where the control lever 2 connects to the float 1 refers to the left end of the control lever 2, that is, the bent end. For example... Figure 1 As shown, the left end of the control lever 2 bends downwards at an angle ranging from 30° to 60°, bringing the float 1 closer to the bottom of the molten glass tank 5. When the molten glass level drops, the float 1 moves downwards with the lower liquid level, causing the bent end of the control lever 2 to move at a greater angle, resulting in a more significant change in the sensor 3 signal. When the liquid level rises, the reverse movement of the bent end prevents the float 1 from being completely submerged, ensuring a continuously effective detection signal. The bending structure also limits the range of motion of the float 1, preventing mechanical interference from contact with the inner wall of the molten glass tank 5.

[0036] In this way, by controlling the portion of lever 2 that extends into the inlet to bend towards the bottom of the glass liquid storage tank 5, the immersion position of float 1 in the glass liquid is made closer to the bottom area of ​​the glass liquid storage tank 5, effectively improving the positional stability of float 1 in the glass liquid, keeping the liquid level detection signal synchronized with the actual liquid level height change, avoiding signal distortion caused by insufficient immersion depth of float 1, and thus ensuring that the feeding device 6 can adjust the feeding amount in a timely manner according to the accurate liquid level data.

[0037] Optionally, combined Figure 1 As shown, the glass melt level control device also includes an auxiliary detection structure that is communicatively connected to the feeding device 6. The auxiliary detection structure is installed on the inner wall of the sealed cover of the glass melt storage tank 5. The part of the control lever 2 located below the sealed cover is provided with a trigger structure, which is used to trigger the auxiliary detection structure.

[0038] Specifically, the auxiliary detection structure can be the sensor 3 mentioned earlier, and the triggering structure can be the sensing element 4 mentioned earlier. The sealed inner wall refers to the inner area of ​​the sealing cover plate on the top of the glass liquid storage tank 5. The auxiliary detection structure can be installed by welding or bolting. This location can avoid the influence of high temperature or splashes on the detection accuracy. When the glass liquid level changes, causing the float 1 to rotate the control lever 2, the triggering structure moves with the lever. When the liquid level reaches the preset threshold, the triggering structure and the auxiliary detection structure are in contact or disengaged. The auxiliary detection structure converts the mechanical action into an electrical signal and transmits it to the feeding device 6. In the event of failure of the main sensor 3, the auxiliary detection structure can still obtain liquid level information through the displacement change of the triggering structure, forming a dual detection mechanism to ensure the continuity of liquid level control.

[0039] Thus, by installing the auxiliary detection structure on the inner wall of the sealed cover of the glass liquid storage tank 5, and setting a trigger structure on the part of the control lever 2 located below the sealed cover, the auxiliary detection structure is used to trigger the auxiliary detection structure. The auxiliary detection structure and the trigger structure form an independent detection channel on the inner wall of the sealed cover, without the need to add external detection equipment, achieving redundant detection function in a limited space, and significantly improving the fault tolerance of liquid level control.

[0040] Optionally, combined Figure 1 As shown, the glass liquid level control device also includes a connecting arm 8, which is located outside the glass liquid storage tank 5. One end of the connecting arm 8 is connected to the control lever 2, and the other end extends to the bottom of the glass liquid storage tank 5 and is connected to the sensing plate 4. The sensor 3 is located at the bottom of the glass liquid storage tank 5.

[0041] Specifically, the upper end of the connecting arm 8 is connected to the control lever 2, and the lower end of the connecting arm 8 extends towards the bottom of the glass melt storage tank 5 and connects to the sensing element 4. When the glass melt level changes, the float 1 drives the control lever 2 to swing around the rotating connection point, and the connecting arm 8 rotates synchronously with the control lever 2, causing the sensing element 4 to move along the bottom of the storage tank. The sensor 3 is fixed at the bottom away from the filling port. The displacement of the sensing element 4 triggers the sensor 3 to generate an electrical signal to control the start and stop of the feeding device 6. The extended design of the connecting arm 8 keeps the detection area of ​​the sensing element 4 and the sensor 3 away from the high-temperature area at the top of the storage tank, avoiding direct radiation of high-temperature gas to the sensor 3 and reducing the operating temperature of the sensor 3.

[0042] Thus, with the connecting arm 8 located outside the glass liquid storage tank 5, and one end of the connecting arm 8 connected to the control lever 2, and the other end extending to the bottom of the glass liquid storage tank 5 and connected to the sensing plate 4, and the sensor 3 located at the bottom of the glass liquid storage tank 5, the sensing plate 4 is far away from the filling port, thereby keeping the sensor 3 away from the filling port. This avoids the problem of inaccurate detection signal caused by thermal interference of the sensor 3 in a high-temperature environment. By physically isolating the high-temperature area from the detection element, the stability of the liquid level control signal is ensured, thereby maintaining the constant outflow pressure of the glass liquid and improving production continuity.

[0043] Optionally, combined Figure 1 As shown, the limiting block is connected to the side wall and is located on the rotation path of the control lever 2. The limiting block is used to abut against the control lever 2 to limit the rotation angle of the control lever 2.

[0044] Specifically, the limiting block can be a metal block welded or bolted to the outer wall. When fluctuations in the liquid glass level cause the float 1 to swing around the rotation connection point, the limiting block blocks the rotation path of the control lever 2, limiting the maximum deflection angle of the lever to a preset range. For example, when the liquid level rises and causes the float 1 to sink, the lever rotates towards the limiting block until the two contact. At this point, the lever cannot continue to deflect, and the position of the float 1 is controlled within the effective range of liquid level detection.

[0045] Thus, by connecting the limiting block to the side wall and positioning it on the rotation path of the control lever 2, the limiting block is used to abut against the control lever 2 to limit the rotation angle of the control lever 2. The limiting block can prevent the lever from swinging excessively due to violent fluctuations in the liquid level, thereby constraining the swing of the control lever 2. It can also prevent the float 1 from deviating from the effective detection area due to excessive rotation of the lever, ensuring the matching of the liquid level detection signal with the control logic of the feeding device 6, and ensuring that the liquid level signal received by the feeding device 6 is consistent with the actual state, thereby maintaining the stability of the glass melt pressure and flow rate.

[0046] Optionally, the surface of the float 1 is covered with a ceramic coating.

[0047] Specifically, when the float 1 is immersed in high-temperature molten glass, the ceramic coating acts as a physical barrier to isolate the molten glass from the metal substrate of the float 1, reducing the wetting and adhesion of the molten glass on the surface of the float 1, preventing the float 1 from changing its effective volume due to surface scaling, and ensuring the long-term stability of the liquid level detection signal.

[0048] In this way, by covering the surface of the float 1 with a ceramic coating, not only is the service life of the liquid level detection device extended, but also abnormal glass liquid level control caused by the failure of the float 1 is avoided, thus ensuring the stability of glass liquid flow control during the production process.

[0049] Another embodiment of this utility model provides a glass production line, including a feeding device 6, a glass liquid storage tank 5, and a glass liquid level control device as described above.

[0050] Specifically, the feeding device 6 can be implemented using a belt conveyor or a screw feeder, with the feeding action triggered by a signal from sensor 3. A flow hole is located at the center of the bottom of the molten glass storage tank 5, through which molten glass continuously flows out. The middle part of the control lever 2 is rotatably connected to the side wall of the molten glass storage tank 5 via a bearing seat. The float 1 is connected to the left end of the control lever 2, and the displacement of the float 1 is converted into the swinging motion of the other end of the control lever 2 through the rotational connection point in the middle. Sensor 3 can be a magnetic induction sensor or a photoelectric sensor, outputting an electrical signal based on the position change of the sensing element 4. The sensing element 4 is the metal piece that triggers the operation of sensor 3, specifically connected to the right end of control lever 2, moving into or out of the detection range of sensor 3 as control lever 2 swings. During the operation of the glass production line, when the liquid level in the molten glass storage tank 5 drops, the float 1 sinks with the liquid level, causing control lever 2 to deflect clockwise around the rotational connection point, causing the sensing element 4 at the other end of the lever to move away from the detection area of ​​sensor 3. Sensor 3 then sends a start signal to the feeding device 6, and the feeding device 6 begins to replenish glass fragments. As the liquid level rises, float 1 rises and pushes control lever 2 to rotate counterclockwise. After sensor 4 re-enters the detection range of sensor 3, feeding device 6 stops working. Through the mechanical transmission of the lever and the real-time feedback of sensor 3, the liquid level is dynamically controlled within the set range, thereby ensuring the stability of the glass hydraulic pressure at the flow orifice.

[0051] In this way, the liquid level changes in the glass melt storage tank 5 can be sensed in real time, and the feeding rate can be automatically adjusted through the synergistic effect of mechanical transmission and signal feedback, thereby maintaining a constant glass melt pressure at the flow orifice. This not only reduces the frequency of manual intervention but also significantly improves the stability of the glass melt flow rate, ensuring the continuity of the production process and the consistency of the products.

[0052] Although the present invention has been disclosed above, its scope of protection is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the scope of protection of the present invention.

Claims

1. A glass melt level control device, installed in a glass melt storage tank (5), characterized in that, The device includes a float (1), a control lever (2), and a sensor (3). The control lever (2) is located at the inlet of the glass liquid storage tank (5). The middle part of the control lever (2) is rotatably connected to the side wall of the glass liquid storage tank (5). One end of the control lever (2) extends into the inlet and is connected to the float (1). The float (1) floats on the surface of the glass liquid. The other end of the control lever (2) is located outside the glass liquid storage tank (5) and is connected to a sensing element (4) for triggering the sensor (3). The sensor (3) is connected to the side wall of the glass liquid storage tank (5) and is used for communication with the feeding device (6).

2. The glass melt level control device according to claim 1, characterized in that, The control lever (2) and the float (1) each include a connected cooling water channel, which is used to connect to cooling water.

3. The glass melt level control device according to claim 1, characterized in that, It also includes a counterweight (7) connected to the end of the control lever (2) away from the float (1), and the counterweight (7) is used to balance the weight of the float (1).

4. The glass melt level control device according to claim 3, characterized in that, The counterweight (7) is detachably connected to the control lever (2).

5. The glass melt level control device according to claim 1, characterized in that, The portion of the control lever (2) that extends into the inlet is bent toward the bottom of the glass liquid storage tank (5).

6. The glass melt level control device according to claim 1, characterized in that, It also includes an auxiliary detection structure that is communicatively connected to the feeding device (6). The auxiliary detection structure is installed on the inner wall of the sealed cover of the glass liquid storage tank (5). The part of the control lever (2) located below the sealed cover is provided with a trigger structure, which is used to trigger the auxiliary detection structure.

7. The glass melt level control device according to claim 1, characterized in that, It also includes a connecting arm (8), which is located outside the glass liquid storage tank (5). One end of the connecting arm (8) is connected to the control lever (2), and the other end extends to the bottom of the glass liquid storage tank (5) and is connected to the sensing plate (4). The sensor (3) is located at the bottom of the glass liquid storage tank (5).

8. The glass melt level control device according to claim 1, characterized in that, It also includes a limiting block, which is connected to the side wall and located on the rotation path of the control lever (2). The limiting block is used to abut against the control lever (2) to limit the rotation angle of the control lever (2).

9. The glass melt level control device according to claim 1, characterized in that, The surface of the float (1) is covered with a ceramic coating.

10. A glass production line, characterized in that, It includes a feeding device (6), a glass liquid storage tank (5), and a glass liquid level control device as described in any one of claims 1-9.

Images