Molten aluminum liquid level monitoring device for aluminum plate cast rolling
By employing a high-temperature eddy current sensor and an adjustable sensor mounting structure during the aluminum plate casting and rolling process, the problems of easy damage and difficult maintenance of liquid level monitoring equipment have been solved, achieving stable monitoring and convenient maintenance under high-temperature environments, and improving the accuracy of liquid level monitoring and the service life of the equipment.
Patent Information
- Application Number
- CN202520328820.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-02-27
AI Technical Summary
Traditional aluminum plate casting and rolling processes often involve level monitoring equipment that is prone to deformation and damage, and is inconvenient to install and maintain, failing to meet the high-temperature environment and high-precision requirements of the modern aluminum plate casting and rolling industry.
A device for monitoring the liquid level of molten aluminum for aluminum plate casting and rolling was designed. It adopts a high-temperature eddy current sensor for non-contact monitoring. The sensor is adjustablely connected to the movable base plate and can be quickly positioned by a positioning pin and a C-clamp. Combined with a lifting rod and an adjusting rod, the sensor can be adjusted in multiple directions, which is convenient for installation and maintenance.
This technology enables stable monitoring of the sensor in high-temperature environments, simplifies the installation and maintenance process, and improves the accuracy of liquid level monitoring and the service life of the equipment.
Smart Images

Figure CN223775960U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of aluminum plate casting and rolling technology, specifically to an aluminum liquid level monitoring device for aluminum plate casting and rolling. Background Technology
[0002] In the aluminum sheet casting and rolling process, the liquid level of the molten aluminum is a crucial parameter, directly affecting product quality, production efficiency, and production safety. An excessively high liquid level may cause the molten aluminum to overflow, wasting materials and potentially damaging production equipment or causing safety accidents; conversely, an excessively low liquid level may result in uneven thickness of the cast and rolled aluminum sheet, affecting the overall quality and performance of the product.
[0003] Traditional methods for monitoring liquid level in aluminum plate casting have many shortcomings in terms of accuracy, high-temperature resistance, and maintenance efficiency, failing to meet the high requirements of the modern aluminum plate casting and rolling industry for liquid level monitoring. For example, traditional float-type liquid level gauges in aluminum plate casting measure the liquid level by the change in buoyancy of the float in the molten aluminum. The float is directly exposed to the high-temperature molten aluminum, and under long-term high-temperature operation, the float is prone to deformation and damage, and maintenance is difficult. Therefore, it is particularly important to develop an easy-to-install and maintain, high-temperature resistant aluminum liquid level monitoring device. Utility Model Content
[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes an aluminum molten metal level monitoring device for aluminum plate casting and rolling, which solves the problems of easy deformation and damage, and inconvenience in installation and maintenance of existing level monitoring equipment.
[0005] To achieve the above objectives, this utility model proposes an aluminum molten metal level monitoring device for aluminum plate casting and rolling, comprising an iron box, a heat-resistant box fixedly installed inside the iron box, a liquid level sensor adjustablely installed on the heat-resistant box, a fixed plate fixedly installed on the side of the iron box, a movable base plate fixedly installed on the fixed plate, a lifting rod adjustablely installed on the movable base plate, an adjusting rod adjustablely installed on the lifting rod, a liquid level sensor fixedly installed at the end of the adjusting rod, the lifting rod and the movable base plate being fixedly connected by a second positioning clamp, and the lifting rod and the adjusting rod being fixedly connected by a first positioning clamp.
[0006] As a further embodiment of this utility model, the movable base plate and the fixed plate are fixedly connected by C-shaped clips.
[0007] As a further embodiment of this utility model: the movable base plate is provided with symmetrical positioning holes on both sides, and the fixed plate is provided with a pair of positioning holes.
[0008] As a further embodiment of this utility model: the positioning holes on the movable base plate and the fixed plate are aligned, and a positioning pin is provided.
[0009] As a further embodiment of this utility model: the adjusting rod is L-shaped, and one side of the adjusting rod is perpendicular to the lifting rod.
[0010] As a further embodiment of this utility model: the second positioning clamp includes a second upper clamp and a second lower clamp; the second upper clamp and the second lower clamp are fixedly connected by screws.
[0011] As a further embodiment of this utility model: the lifting rod is disposed between the second upper clamp and the second lower clamp, and the second lower clamp is fixedly connected to the movable base plate.
[0012] As a further embodiment of this utility model: the first positioning clamp includes a first upper clamp and a first lower clamp, one end of the first lower clamp is fixedly connected to the lifting rod, and the other end is fixedly connected to the first upper clamp by screws.
[0013] As a further embodiment of this utility model: the adjusting rod is disposed between the first upper clamp and the first lower clamp.
[0014] As a further embodiment of this utility model, mounting plates are symmetrically fixed on both sides of the iron box.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] 1. The sensor is adjustable to the movable base plate, which is quickly positioned to the front box using locating pins and then fixed with C-clamps. This allows for quick separation and repositioning of the sensor components from the front box during inspection and maintenance.
[0017] 2. A high-temperature eddy current sensor is used to monitor the real-time aluminum liquid level. The sensor is cooled by conventional compressed air and has a built-in temperature sensor that alarms when the temperature exceeds 80 degrees Celsius. The sensor can be quickly adjusted to a suitable working position by rotating it forward, backward, up, and down, avoiding interference from the casting chamber. The sensor's mounting and connecting components are made of stainless steel that is resistant to high temperatures and oxidation. Attached Figure Description
[0018] Figure 1 The three-dimensional structure of this utility model Figure 1 ;
[0019] Figure 2 The three-dimensional structure of this utility model Figure 2 ;
[0020] Figure 3 This utility model Figure 2 Enlarged view of point A;
[0021] Figure 4 This utility model Figure 2 Enlarged view of point B.
[0022] In the diagram: 1. Iron box; 2. Heat-resistant box; 3. Liquid level sensor; 4. First positioning clamp; 5. Adjusting rod; 6. Lifting rod; 7. Second positioning clamp; 8. Movable base plate; 9. C-shaped clamp; 10. Fixing plate; 11. Mounting plate; 12. First upper clamp; 13. First lower clamp; 14. Second upper clamp; 15. Second lower clamp. Detailed Implementation
[0023] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0024] like Figure 1-4 As shown, an aluminum liquid level monitoring device for aluminum plate casting and rolling includes an iron box 1, a heat-resistant box 2 fixedly installed inside the iron box 1, and aluminum liquid inside the heat-resistant box 2. In specific implementations, it is used in conjunction with a flow controller. A liquid level sensor 3 is installed on the heat-resistant box 2 to monitor the aluminum liquid level inside the heat-resistant box 2. The liquid level sensor 3 is made of high-temperature resistant material. In this embodiment, it is a high-temperature eddy current sensor for non-contact monitoring of the aluminum liquid. The liquid level sensor 3 is cooled by conventional compressed air and has a built-in temperature sensor that automatically alarms when the temperature exceeds 80 degrees Celsius. The position of the liquid level sensor 3 is adjustable to facilitate the maintenance of the device's stability. A fixed plate 10 is fixedly installed on the side of the iron box 1, and a movable base plate 8 is fixedly installed on the fixed plate 10. The movable base plate 8 and the fixed plate 10 are fixedly connected by C-shaped clips 9. Specifically, the movable base plate 8 has symmetrical positioning holes on both sides, and the fixed plate 10 has a pair of positioning holes. The positioning holes on the movable base plate 8 and the fixed plate 10 are aligned, and positioning pins are inserted into the positioning holes for quick positioning. Then, the C-shaped clips 9 are used for fixation.
[0025] A lifting rod 6 is adjustable on the movable base plate 8. The lifting rod 6 is used to adjust the vertical position of the liquid level sensor 3. An adjusting rod 5 is adjustable on the lifting rod 6. The adjusting rod 5 is L-shaped, and the liquid level sensor 3 is fixedly mounted at the end of the adjusting rod 5. The mounting and connecting components of the sensor 3 and the adjusting rod 5 are made of stainless steel, which is resistant to high temperature and oxidation. The adjusting rod 5 is perpendicular to the lifting rod 6. The lifting rod 6 is fixedly connected to the movable base plate 8 by a second positioning clamp 7, and the lifting rod 6 is fixedly connected to the adjusting rod 5 by a first positioning clamp 4. Specifically, the second positioning clamp 7 includes a second upper clamp 14 and a second lower clamp 15. The lifting rod 6 is positioned between the second upper clamp 14 and the second lower clamp 15, and the second upper clamp 14 and the second lower clamp 15 are fixedly connected by screws. The second lower clamp 15 is fixedly connected to the movable base plate 8. In use, loosening the second upper clamp 14 allows the liquid level sensor 3 to rotate and adjust its height. Tightening the second upper clamp 14 limits the adjustment height and orientation. The first positioning clamp 4 includes a first upper clamp 12 and a first lower clamp 13. One end of the first lower clamp 13 is fixedly connected to the lifting rod 6, and the other end is fixedly connected to the first upper clamp 12 by screws. The adjusting rod 5 is located between the first upper clamp 12 and the first lower clamp 13. Loosening the first upper clamp 12 allows the adjusting rod 5 to move laterally, thus adjusting the liquid level sensor 3 to its front and rear orientation. The first positioning clamp 4 and the second positioning clamp 7 facilitate the front and rear, up and down rotation adjustment of the liquid level sensor 3, allowing it to be quickly adjusted to the appropriate working position.
[0026] As one implementation method in this embodiment, mounting plates 11 are symmetrically fixed on both sides of the iron box 1. In specific implementation, the mounting plates 11 can be used to conveniently limit the position of the iron box 1.
[0027] Working principle:
[0028] Align the positioning holes on the movable base plate 8 and the fixed plate 10, insert the positioning pins into the positioning holes for quick positioning, and then fix them with C-clamps 9; thus, the movable base plate 8 is fixedly installed. Then, the liquid level sensor 3 is installed on the movable base plate 8. The lifting rod 6 is connected to the movable base plate 8 through the second positioning clamp 7, and the lifting rod 6 is connected to the adjusting rod 5 through the first positioning clamp 4. Loosen the second upper clamp 14 to achieve the rotation and height adjustment of the liquid level sensor 3. Loosen the first upper clamp 12 to achieve the lateral movement of the adjusting rod 5, thereby achieving the front and rear orientation adjustment of the liquid level sensor 3. After adjustment, tighten the first positioning clamp 4 and the second positioning clamp 7 respectively to adjust the position of the liquid level sensor 3. When it is necessary to repair the heat-resistant box 2 or the liquid level sensor 3, remove the C-clamps 9 and remove the positioning pins on the movable base plate 8 and the fixed plate 10 to separate the liquid level sensor 3 from the heat-resistant box 2.
[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," etc., 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 utility model based on the specific circumstances.
[0030] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.
Claims
1. A device for monitoring the level of molten aluminum in aluminum plate casting and rolling, characterized in that, The device includes an iron box (1), a heat-resistant box (2) is fixedly installed inside the iron box (1), a liquid level sensor (3) is adjustablely installed on the heat-resistant box (2), a fixing plate (10) is fixedly installed on the side of the iron box (1), a movable base plate (8) is fixedly installed on the fixing plate (10), a lifting rod (6) is adjustablely installed on the movable base plate (8), an adjusting rod (5) is adjustablely installed on the lifting rod (6), a liquid level sensor (3) is fixedly installed at the end of the adjusting rod (5), the lifting rod (6) and the movable base plate (8) are fixedly connected by a second positioning clamp (7), and the lifting rod (6) and the adjusting rod (5) are fixedly connected by a first positioning clamp (4).
2. The aluminum molten metal level monitoring device for aluminum plate casting and rolling according to claim 1, characterized in that, The movable base plate (8) and the fixed plate (10) are fixedly connected by C-shaped clips (9).
3. The aluminum molten metal level monitoring device for aluminum plate casting and rolling according to claim 1, characterized in that, The movable base plate (8) has symmetrical positioning holes on both sides, and the fixed plate (10) has a pair of positioning holes.
4. The aluminum molten metal level monitoring device for aluminum plate casting and rolling according to claim 3, characterized in that, The movable base plate (8) is aligned with the positioning holes on the fixed plate (10) and is provided with positioning pins.
5. The aluminum molten metal level monitoring device for aluminum plate casting and rolling according to claim 1, characterized in that, The adjusting rod (5) is L-shaped, and one side of the adjusting rod (5) is perpendicular to the lifting rod (6).
6. The aluminum molten metal level monitoring device for aluminum plate casting and rolling according to claim 1, characterized in that, The second positioning clamp (7) includes a second upper clamp (14) and a second lower clamp (15); the second upper clamp (14) and the second lower clamp (15) are fixedly connected by screws.
7. The aluminum molten metal level monitoring device for aluminum plate casting and rolling according to claim 6, characterized in that, The lifting rod (6) is positioned between the second upper clamp (14) and the second lower clamp (15), and the second lower clamp (15) is fixedly connected to the movable base plate (8).
8. The aluminum molten metal level monitoring device for aluminum plate casting and rolling according to claim 1, characterized in that, The first positioning clamp (4) includes a first upper clamp (12) and a first lower clamp (13). One end of the first lower clamp (13) is fixedly connected to the lifting rod (6), and the other end is fixedly connected to the first upper clamp (12) by screws.
9. The aluminum molten metal level monitoring device for aluminum plate casting and rolling according to claim 8, characterized in that, The adjusting rod (5) is positioned between the first upper clamp (12) and the first lower clamp (13).
10. The aluminum molten metal level monitoring device for aluminum plate casting and rolling according to claim 1, characterized in that, Mounting plates (11) are symmetrically fixed on both sides of the iron box (1).