Device for measuring liquid level of aluminum in holding furnace

Abstract

The utility model provides a kind of heat preservation furnace aluminium water liquid level height measuring device: including L type guide rail, the vertical portion guide rail of L type guide rail is below, horizontal portion guide rail is on, horizontal slide joint is in the horizontal portion guide rail, vertical slide joint is in the vertical portion, the junction of vertical portion guide rail and horizontal portion guide rail is installed with the connecting rod mechanism for making horizontal slide block and vertical slide block linkage on.The utility model has following beneficial effects: reasonable in design, to control converter aluminium water quantity by measuring the liquid level height.Overmuch or too little converter aluminium water quantity is avoided to cause to the influence to ingot melt quality and yield rate, post-process processing defect etc., facilitate specialized production.

Description

Technical Field

[0001] This utility model relates to a device for measuring the height of molten aluminum in a heat preservation furnace. Background Technology

[0002] In the aluminum alloy casting process, the holding furnace (stationary furnace) serves as a crucial link between the melting furnace and casting equipment. Precise control of the aluminum molten material transfer rate in the holding furnace directly impacts the quality of the final product and production safety. The transfer rate refers to the weight of molten aluminum transferred from the melting furnace to the holding furnace, and its control precision is affected by various factors, including temperature fluctuations, flow rate errors, converter time, and equipment linkage failures. With the increasing performance requirements of high-end manufacturing for aluminum alloy components, precise control of the aluminum molten material transfer rate in the holding furnace converter has become a core aspect of casting process optimization.

[0003] The necessity of controlling the amount of molten aluminum in the holding furnace converter is mainly reflected in three aspects. First, insufficient converter volume will result in short-length cast ingots for aluminum alloy flat ingot casting, which will greatly affect the continuity of subsequent processing methods such as hot rolling, product defects (edge ​​cracks and uneven microstructure), and yield. Furthermore, during the casting process, especially for tank body and lid materials, insufficient molten aluminum will lead to a low casting liquid level at the end stage, increasing the risk of slag inclusions at the head, which is fatal for tank body and lid materials. Second, excessive converter volume will increase the risk of molten aluminum oxidation and melt gas absorption, not only wasting materials, but also, for high-Mg alloys, if a large amount of molten aluminum remains in the holding furnace for a long time, it will greatly affect the slag content of the melt, leading to a decrease in melt purity. Finally, molten aluminum leakage or splashing during the converter process may cause serious safety accidents. Therefore, constructing a scientific and comprehensive converter volume control system and detection methods is of great significance for improving product quality, reducing production costs, and ensuring production safety. The existing methods of high-level observation mostly involve setting conspicuous limit position lines inside the holding furnace to observe whether the molten aluminum is within the set range. However, this method has a drawback: due to the harsh environment inside the furnace, the lower limit position line is not easy to see, and sometimes the lower limit position line is even blurred by the molten aluminum burning or sticking together. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a device for measuring the height of molten aluminum in a heat-holding furnace, so as to control the amount of molten aluminum in the converter by measuring the height of the liquid level, and avoid the impact of too much or too little molten aluminum in the converter on the quality of the ingot melt, the yield, and defects in subsequent processing.

[0005] This utility model is implemented using the following scheme: A device for measuring the height of molten aluminum in a heat preservation furnace: including an L-shaped guide rail, with the vertical guide rail at the bottom and the horizontal guide rail at the top, a horizontal slider sliding inside the horizontal guide rail, and a vertical slider sliding inside the vertical guide rail, and a linkage mechanism for linking the horizontal slider and the vertical slider is installed at the junction of the vertical guide rail and the horizontal guide rail.

[0006] Furthermore, the L-shaped guide rail includes an L-shaped side plate, with the horizontal part of the L-shaped side plate on top and the vertical part on the bottom. Horizontal guide plates are provided on both the upper and lower sides of the horizontal part of the L-shaped side plate, and the two horizontal guide plates and the horizontal part of the L-shaped side plate form a horizontal guide rail. Vertical guide plates are provided on both the left and right sides of the vertical part of the L-shaped side plate, and the two vertical guide plates and the vertical part of the L-shaped side plate form a vertical guide rail.

[0007] Furthermore, the upper horizontal guide plate on the L-shaped side plate and the right vertical guide plate on the L-shaped side plate are connected at the junction of the vertical guide rail and the horizontal guide rail. The lower horizontal guide plate on the L-shaped side plate and the left vertical guide plate on the L-shaped side plate are both provided with clearances corresponding to the linkage mechanism.

[0008] Furthermore, the horizontal slider is slidably connected between two upper and lower horizontal guide plates. A horizontal guide hole is provided along the length direction on the upper horizontal guide plate. At least one first guide pin is installed on the horizontal slider, and the first guide pin is slidably connected in the horizontal guide hole.

[0009] Furthermore, the vertical slider is slidably connected between two vertical guide plates on the left and right sides. A vertical guide hole is provided along the length direction on the vertical guide plate on the right side. At least one second guide pin is installed on the vertical slider, and the second guide pin is slidably connected in the vertical guide hole.

[0010] Furthermore, a distance plate is connected to the lower horizontal guide plate edge of the L-shaped side plate, and the distance plate is provided with horizontal scale lines.

[0011] Furthermore, the linkage mechanism includes a swing rod and a linkage rod. One end of the swing rod is hinged to the middle of the junction of the horizontal and vertical parts of the L-shaped side plate, and the other end is hinged to the middle of the linkage rod. The two ends of the linkage rod are respectively hinged to the horizontal slider and the vertical slider. The scale distance on the scale line is the length from the hinge point of the linkage rod and the horizontal slider to the hinge point of the swing rod on the L-shaped side plate.

[0012] Furthermore, an operating lever for driving the horizontal slider to slide is horizontally positioned on the side of the horizontal slider.

[0013] Furthermore, a triangular bracket is installed under the horizontal guide plate at the lower part of the L-shaped side plate.

[0014] Furthermore, a measuring reference block is hung on the lower end of the vertical slider via a hook.

[0015] Compared with the prior art, the present invention has the following advantages: it is reasonably designed so that the amount of aluminum in the converter can be controlled by measuring the liquid level, thereby avoiding the impact of too much or too little aluminum in the converter on the quality of the ingot melt, the yield, and defects in subsequent processing. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a side view of the structure of this utility model.

[0017] In the diagram: 1-L-shaped guide rail; 2-Vertical guide rail; 3-Horizontal guide rail; 4-Horizontal slider; 5-Vertical slider; 6-Linkage mechanism; 7-L-shaped side plate; 8-Horizontal guide plate; 9-Vertical guide plate; 10-Horizontal guide hole; 11-First guide pin; 12-Vertical guide hole; 13-Second guide pin; 14-Swing rod; 15-Linkage rod; 16-Allowing opening; 17-Distance plate; 18-Scale line; 19-Operating lever; 20-Triangular bracket; 21-Measuring reference block. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] It should be noted that the following detailed descriptions are exemplary and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0020] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0021] like Figure 1-2As shown, a device for measuring the height of molten aluminum in a heat-preserving furnace includes an L-shaped guide rail 1, with a vertical guide rail 2 at the bottom and a horizontal guide rail 3 at the top. A horizontal slider 4 is slidably connected inside the horizontal guide rail, and a vertical slider 5 is slidably connected inside the vertical guide rail. A linkage mechanism 6 is installed at the junction of the vertical and horizontal guide rails to enable the horizontal and vertical sliders to move together. In use, the L-shaped guide rail is mounted on the furnace sill, with the horizontal guide rail above the molten aluminum. The first position of the horizontal slider is recorded. By sliding the horizontal slider, the linkage mechanism drives the vertical slider to slide until the lower part of the vertical slider touches the molten aluminum. The second position of the horizontal slider is recorded at this point. The position difference between the first and second positions of the horizontal slider is converted into the descent distance of the vertical slider, thus measuring the height of the molten aluminum.

[0022] In this embodiment, to enable the sliding of the horizontal and vertical sliders, the L-shaped guide rail includes an L-shaped side plate 7, with the horizontal portion of the L-shaped side plate at the top and the vertical portion at the bottom. Horizontal guide plates 8 are provided on both the upper and lower sides of the horizontal portion of the L-shaped side plate, forming a horizontal guide rail with the two horizontal guide plates and the horizontal portion of the L-shaped side plate. Vertical guide plates 9 are provided on both the left and right sides of the vertical portion of the L-shaped side plate. In this embodiment, the left side of the vertical portion of the L-shaped side plate is the side closer to the horizontal portion of the L-shaped side plate, and the right side is the side farther from the horizontal portion of the L-shaped side plate. The two vertical guide plates and the vertical portion of the L-shaped side plate form a vertical guide rail. The horizontal slider slides between the upper and lower horizontal guide plates, and the vertical slider slides between the left and right vertical guide plates.

[0023] In this embodiment, to achieve stable sliding of the horizontal and vertical sliders, at least one horizontal guide hole 10 is provided along the length direction on the upper horizontal guide plate. At least one first guide pin 11 is installed on the horizontal slider, and the first guide pin slides into the corresponding horizontal guide hole. Alternatively, at least one horizontal guide hole can be provided on the lower horizontal guide plate, or at least one horizontal guide hole can be provided on both the upper and lower horizontal guide plates. At least one vertical guide hole 12 is provided along the length direction on the right vertical guide plate, and at least one second guide pin 13 is installed on the vertical slider, and the second guide pin slides into the vertical guide hole. Alternatively, at least one vertical guide hole can be provided along the length direction on the left vertical guide plate, or at least one vertical guide hole can be provided along the length direction on both the left and right vertical guide plates.

[0024] In this embodiment, in order to enable the linkage mechanism to link the horizontal slider and the vertical slider, the specific structure of the linkage mechanism is as follows: the linkage mechanism includes a swing rod 14 and a linkage rod 15. One end of the swing rod is hinged to the middle of the junction of the horizontal and vertical parts of the L-shaped side plate, and the other end is hinged to the middle of the linkage rod. The two ends of the linkage rod are respectively hinged to the horizontal slider and the vertical slider. In use, the horizontal slider drives the linkage rod to move under the restriction of the swing rod, thereby driving the vertical slider to slide. The hinge point of the linkage rod and the horizontal slider is on the same horizontal line as the hinge point of the swing rod on the L-shaped side plate, and the hinge point of the linkage rod and the vertical slider is on the same vertical line as the hinge point of the swing rod on the L-shaped side plate.

[0025] In this embodiment, in order to strengthen the overall structure, the horizontal guide plate on the upper part of the L-shaped side plate and the vertical guide plate on the right side of the L-shaped side plate are connected as one piece at the junction of the vertical guide rail and the horizontal guide rail. In order to avoid interference, the horizontal guide plate on the lower part of the L-shaped side plate and the vertical guide plate on the left side of the L-shaped side plate are provided with clearance openings 16 corresponding to the linkage mechanism and are not connected.

[0026] In this embodiment, in order to achieve distance measurement, the specific distance measurement structure is as follows: a distance plate 17 is connected to the length edge of the horizontal guide plate located at the lower part of the L-shaped side plate, and a horizontal scale line 18 is provided on the distance plate. The scale distance on the scale line is the length of the hinge point between the linkage rod and the horizontal slider and the hinge point of the swing rod on the L-shaped side plate.

[0027] In this embodiment, in order to facilitate the operator to drive the horizontal slider, an operating rod 19 for driving the horizontal slider to slide is horizontally placed on the side of the horizontal slider. By pushing the operating rod, the horizontal slider is driven to move.

[0028] In this embodiment, in order to install and fix the L-shaped guide rail, a triangular bracket 20 is installed under the horizontal guide plate at the bottom of the L-shaped side plate. The L-shaped guide rail is installed on the furnace threshold by the triangular bracket. Of course, other brackets can also be used for fixing.

[0029] In this embodiment, since the length of the vertical slider is limited, a measuring reference block 21 is hung on the lower end of the vertical slider via a hook, which extends the vertical slider and facilitates measurement.

[0030] In this embodiment, during use, the L-shaped guide rail is horizontally placed on the platform of the furnace threshold using a triangular bracket. The vertical slider is moved by adjusting the operating lever, and the measuring reference block below moves along with the vertical slider. The height is adjusted so that the bottom of the measuring reference block just contacts the furnace threshold. At this point, the scale x1 is recorded, while the length of the linkage rod remains unchanged at L. Therefore, the initial height h1 is determined according to the valley theorem L.2 =x1 2 +h1 2 We can know that the initial height is: h1 = √(L 2 -x1 2 Then continue adjusting the operating lever until the bottom of the measuring reference block just touches the molten aluminum in the holding furnace. At this point, record the scale value x2. Therefore, the measured height h2 is calculated according to the valley theorem. 2 =x2 2 +h2 2 We can determine that the measured height is: h2 = √(L) 2 -x2 2 Finally, the height of the molten aluminum surface, h = h2 - h1, can be calculated.

[0031] Unless otherwise stated, if any of the technical solutions disclosed in this utility model discloses a numerical range, then the disclosed numerical range is a preferred numerical range. Any person skilled in the art should understand that the preferred numerical range is merely one among many feasible numerical values ​​that has a more obvious or representative technical effect. Because there are many numerical values, it is impossible to list them all. Therefore, this utility model discloses only some numerical values ​​to illustrate the technical solutions of this utility model. Furthermore, the numerical values ​​listed above should not constitute a limitation on the scope of protection of this utility model.

[0032] If the terms "first" or "second" are used in this document to specify components, those skilled in the art should know that the use of "first" or "second" is merely for the purpose of distinguishing components in description, and unless otherwise stated, the above terms have no special meaning.

[0033] If this utility model discloses or relates to mutually fixedly connected parts or structural components, then unless otherwise stated, a fixed connection can be understood as: a detachable fixed connection (e.g., using bolts or screws), or a non-detachable fixed connection (e.g., riveting, welding). Of course, mutually fixed connections can also be replaced by an integral structure (e.g., manufactured by integral molding using a casting process) (except where it is obviously impossible to use an integral molding process).

[0034] Furthermore, the orientations or positional relationships indicated by terms such as "longitudinal," "lateral," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" used in any of the technical solutions disclosed in this utility model are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing this patent. They are not intended to 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 this patent. In addition, unless otherwise stated, the terms used to indicate shape in any of the technical solutions disclosed in this utility model include shapes that are similar to, close to, or approximate with it.

[0035] Any component provided by this utility model can be assembled from multiple individual components, or it can be a single component manufactured by a one-piece molding process.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. A device for measuring the height of molten aluminum in a heat-preserving furnace, characterized in that: The system includes an L-shaped guide rail, with a vertical guide rail at the bottom and a horizontal guide rail at the top. A horizontal slider is slidably connected inside the horizontal guide rail, and a vertical slider is slidably connected inside the vertical guide rail. A linkage mechanism for linking the horizontal slider and the vertical slider is installed at the junction of the vertical guide rail and the horizontal guide rail.

2. The aluminum molten metal level measuring device for a heat-preserving furnace according to claim 1, characterized in that: The L-shaped guide rail includes an L-shaped side plate with a horizontal portion on top and a vertical portion on the bottom. Horizontal guide plates are provided on both the upper and lower sides of the horizontal portion of the L-shaped side plate, and the two horizontal guide plates and the horizontal portion of the L-shaped side plate form a horizontal guide rail. Vertical guide plates are provided on both the left and right sides of the vertical portion of the L-shaped side plate, and the two vertical guide plates and the vertical portion of the L-shaped side plate form a vertical guide rail.

3. The aluminum molten metal level measuring device for a heat-preserving furnace according to claim 2, characterized in that: The upper horizontal guide plate on the L-shaped side plate and the right vertical guide plate on the L-shaped side plate are connected at the junction of the vertical guide rail and the horizontal guide rail. The lower horizontal guide plate on the L-shaped side plate and the left vertical guide plate on the L-shaped side plate are both provided with clearance for the linkage mechanism.

4. The aluminum molten metal level measuring device for a heat-preserving furnace according to claim 2, characterized in that: The horizontal slider is slidably connected between two horizontal guide plates. A horizontal guide hole is provided along the length direction on the upper horizontal guide plate. At least one first guide pin is installed on the horizontal slider, and the first guide pin is slidably connected in the horizontal guide hole.

5. The aluminum molten metal level measuring device for a heat-preserving furnace according to claim 2, characterized in that: The vertical slider is slidably connected between two vertical guide plates on the left and right sides. A vertical guide hole is provided along the length direction on the vertical guide plate on the right side. At least one second guide pin is installed on the vertical slider, and the second guide pin is slidably connected in the vertical guide hole.

6. The aluminum molten metal level measuring device for a heat-preserving furnace according to claim 2, characterized in that: A distance plate is connected to the lower horizontal guide plate edge of the L-shaped side plate, and the distance plate is provided with horizontal scale lines.

7. The aluminum molten metal level measuring device for a heat-preserving furnace according to claim 6, characterized in that: The linkage mechanism includes a swing rod and a linkage rod. One end of the swing rod is hinged to the middle of the junction of the horizontal and vertical parts of the L-shaped side plate, and the other end is hinged to the middle of the linkage rod. The two ends of the linkage rod are respectively hinged to the horizontal slider and the vertical slider. The scale distance on the scale line is the length from the hinge point of the linkage rod and the horizontal slider to the hinge point of the swing rod on the L-shaped side plate.

8. The aluminum molten metal level measuring device for a heat-preserving furnace according to claim 1, characterized in that: An operating lever for driving the horizontal slider to slide is horizontally placed on the side of the horizontal slider.

9. The device for measuring the height of molten aluminum in a heat-preserving furnace according to claim 2, characterized in that: A triangular bracket is installed under the horizontal guide plate at the bottom of the L-shaped side plate.

10. The aluminum molten metal level measuring device for a heat-preserving furnace according to claim 1, characterized in that: A measuring reference block is hung on the lower end of the vertical slider via a hook.

Images