Liquid outlet control structure for lithium liquid ingot casting

Abstract

The utility model relates to the technical field of metal lithium forming, in particular to a liquid outlet control structure for a lithium liquid cast ingot. Comprising an output pipe and an intermediate tank communicated with the output pipe, and a liquid outlet pipe communicated with the intermediate tank is arranged at the bottom end of the intermediate tank; an output port of the liquid outlet pipe is higher than the joint of the liquid outlet pipe and the intermediate tank, an argon pipe and an exhaust pipe are arranged at the top of the intermediate tank, a first valve is arranged on the argon pipe, and a second valve is arranged on the exhaust pipe. According to the utility model, the argon pipe and the exhaust pipe are arranged on the intermediate tank, the first valve is arranged on the argon pipe, and the second valve is arranged on the exhaust pipe, so that lithium liquid in the intermediate tank can be output and intercepted, the first valve and the second valve are not in contact with high-heat lithium liquid, and the service life of the valves is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of lithium metal forming technology, specifically to a lithium liquid ingot discharge control structure. Background Technology

[0002] Lithium is a particularly reactive metal. It is silvery-white in appearance, very soft, and can spontaneously combust in oxygen and air. Lithium is also an important energy metal. Its use in high-energy lithium batteries and controlled thermonuclear reactions makes lithium an important material for providing long-term power to mankind. The development of the lithium industry is closely related to the development of the military industry.

[0003] In the production process of lithium ingots, liquid lithium needs to be cast into lithium ingots, usually one by one in a drying room or under argon protection. After a lithium ingot is cast, in order to prevent the waste of lithium liquid, a valve is usually installed on the lithium liquid output pipe. For example, in Chinese utility model CN215315572U, a shut-off valve is used to control the opening and closing of the lithium liquid supply pipeline. However, using valves to control the opening and closing of the lithium liquid supply pipeline has some problems. At high temperatures, the valve life is relatively short and it is easily blocked by slag in the lithium liquid, which is not conducive to the control of lithium liquid discharge. If the valve is damaged during casting, it will cause lithium liquid to leak, which is very troublesome to deal with and affects production. In addition, valves are expensive and replacement is costly. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a lithium liquid ingot discharge control structure for controlling the output and cut-off of lithium liquid.

[0005] The technical solution adopted by this utility model to solve its technical problem is a lithium liquid ingot discharge control structure, including an output pipe and an intermediate tank connected to the output pipe. The bottom end of the intermediate tank is provided with an outlet pipe connected to the intermediate tank. The height of the outlet of the outlet pipe is higher than the height of the connection between the outlet pipe and the intermediate tank. The top of the intermediate tank is provided with an argon gas pipe and an exhaust pipe. The argon gas pipe is provided with a first valve, and the exhaust pipe is provided with a second valve.

[0006] Furthermore, the outlet pipe includes a horizontally arranged first pipe and a vertically arranged second pipe. The first pipe and the second pipe are connected. The outlet of the second pipe is connected to an outlet pipe. The height of the outlet of the second pipe is higher than the height of the connection between the first pipe and the intermediate tank, and the height of the outlet of the second pipe is lower than the height of the connection between the outlet pipe and the intermediate tank.

[0007] Furthermore, a heating device is installed inside the intermediate tank.

[0008] Furthermore, the heating device is a heating coil, which is electrically connected to a power supply device, and the power supply device is communicatively connected to a controller.

[0009] Furthermore, a level gauge is installed inside the intermediate tank.

[0010] Furthermore, both the first valve and the second valve are solenoid valves.

[0011] Furthermore, the output pipe, liquid outlet pipe, argon gas pipe, and exhaust pipe are all connected to the intermediate tank via sealed joints.

[0012] The beneficial effects of this utility model are: by setting an argon gas pipe and an exhaust pipe on the intermediate tank, with a first valve on the argon gas pipe and a second valve on the exhaust pipe, the lithium liquid in the intermediate tank can be output and blocked. The first valve and the second valve will not come into contact with the hot lithium liquid, thus improving the service life of the valves. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure reference numerals: 1-Output pipe; 2-Intermediate tank; 3-Liquid outlet pipe; 4-Argon gas pipe; 5-Exhaust pipe; 6-First valve; 7-Second valve; 8-First pipeline; 9-Second pipeline; 10-Heating coil; 11-Power supply equipment; 12-Controller. Detailed Implementation

[0015] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0016] like Figure 1 As shown, the lithium liquid ingot discharge control structure of this utility model includes an output pipe 1 and an intermediate tank 2 connected to the output pipe 1. An outlet pipe 3 connected to the intermediate tank 2 is provided at the bottom end of the intermediate tank 2. The height of the outlet port of the outlet pipe 3 is higher than the height of the connection between the outlet pipe 3 and the intermediate tank 2. An argon gas pipe 4 and an exhaust pipe 5 are provided at the top of the intermediate tank 2. A first valve 6 is provided on the argon gas pipe 4, and a second valve 7 is provided on the exhaust pipe 5. The connection between the output pipe 1 and the intermediate tank 2 is located at the top of the intermediate tank 2, and the height of the outlet port of the outlet pipe 3 is higher than the height of the connection between the outlet pipe 3 and the intermediate tank 2. This arrangement ensures that during flow control, the lithium liquid level in the intermediate tank 2 is higher than the height of the connection between the outlet pipe 3 and the intermediate tank 2. The argon gas pipe 4 is connected to an external argon gas tank to input argon gas from the argon gas tank into the intermediate tank 2. The exhaust pipe 5 is connected to the external space to discharge gas from the intermediate tank 2. The first valve 6 is used to open and close the argon gas pipe 4, and the second valve 7 is used to open and close the exhaust pipe 5.

[0017] The specific operation process of this utility model is as follows:

[0018] After closing the first valve 6 and the second valve 7, the lithium liquid enters the intermediate tank 2 from the output pipe 1. Once the lithium liquid level in the intermediate tank 2 is higher than the height of the connection between the outlet pipe 3 and the intermediate tank 2, the intermediate tank 2 is in a closed state. Continue to input lithium liquid into the intermediate tank 2 so that the pressure inside the intermediate tank 2 is higher than the external pressure. The lithium liquid will then flow out from the outlet pipe 3 and enter the ingot mold.

[0019] After the lithium ingot casting is completed, it is necessary to cut off the flow. At this time, the second valve 7 is opened, and the lithium liquid enters the intermediate tank 2 from the output pipe 1. The gas in the intermediate tank 2 is discharged through the exhaust port. Since the height of the output port of the liquid outlet pipe 3 is higher than the height of the connection between the liquid outlet pipe 3 and the intermediate tank 2, the lithium liquid can be temporarily stored in the intermediate tank 2. The deepest depth of lithium liquid storage is the distance from the height of the output port of the liquid outlet pipe 3 to the bottom of the intermediate tank 2, thus achieving the effect of cutting off the flow.

[0020] When casting is required again, close the second valve 7. At this time, the intermediate tank 2 is in a closed state. Continue to input lithium liquid into the intermediate tank 2 so that the pressure inside the intermediate tank 2 is higher than the external pressure. The lithium liquid will flow out from the outlet pipe 3 and enter the ingot mold.

[0021] When the lithium liquid in intermediate tank 2 reaches a high level, i.e., when there is too much lithium liquid stored in intermediate tank 2, the first valve 6 is opened, and argon gas is introduced into intermediate tank 2 through argon gas pipe 4 to apply pressure to the lithium liquid in intermediate tank 2. At this time, the lithium liquid in intermediate tank 2 flows out from the outlet pipe 3. Due to the increased pressure in intermediate tank 2, the flow rate of the output pipe 1 is greatly reduced, or even the feeding stops, until the lithium liquid level in intermediate tank 2 is level with the height of the connection between the outlet pipe 3 and intermediate tank 2. Then, the first valve 6 is closed and the second valve 7 is opened, and the gas in intermediate tank 2 is discharged through the exhaust pipe 5. The lithium liquid is temporarily stored in intermediate tank 2. At this time, other molds can be used for casting.

[0022] To prevent the lithium liquid level in the intermediate tank 2 from becoming too high, which would cause lithium liquid to be discharged from the vent pipe 5, the outlet pipe 3 further includes a horizontally arranged first pipe 8 and a vertically arranged second pipe 9. The first pipe 8 and the second pipe 9 are connected, and the outlet of the second pipe 9 is connected to an outlet pipe. The height of the outlet of the second pipe 9 is higher than the height of the connection between the first pipe 8 and the intermediate tank 2, and lower than the height of the connection between the outlet pipe 1 and the intermediate tank 2. The first pipe 8 is horizontally arranged and connected to the intermediate tank 2, while the second pipe 9 is vertically arranged. This allows for better pipe layout. The lithium liquid flows through the first pipe 8 and the second pipe 9 and then flows out through the outlet pipe. The height of the outlet of the second pipe 9 is higher than the height of the connection between the first pipe 8 and the intermediate tank 2, and lower than the height of the connection between the outlet pipe 1 and the intermediate tank 2. Thus, during the flow control operation, when the liquid level in the intermediate tank 2 is level with the outlet of the second pipe 9, the lithium liquid will flow out from the outlet pipe, preventing the liquid level in the intermediate tank 2 from continuously rising and causing lithium liquid to be discharged from the vent pipe 5.

[0023] If the lithium liquid is left in the intermediate tank 2 for too long, it may solidify. To ensure the fluidity of the lithium liquid, a heating device is further provided in the intermediate tank 2. The heating device is a heating coil 10, which is electrically connected to a power supply device 11, and the power supply device 11 is communicatively connected to a controller 12. When it is necessary to heat the lithium liquid in the intermediate tank 2, the controller 12 controls the power supply device 11 to supply power to the heating coil 10, and the heating coil 10 generates heat to heat the lithium liquid.

[0024] In order to monitor the liquid level in the intermediate tank 2 in real time, a level gauge is further installed in the intermediate tank 2.

[0025] To facilitate the opening or closing of the argon gas pipe 4 and the exhaust pipe 5, both the first valve 6 and the second valve 7 are solenoid valves.

[0026] To ensure a tight seal, the output pipe 1, liquid outlet pipe 3, argon gas pipe 4, and exhaust pipe 5 are all connected to the intermediate tank 2 via sealing joints.

[0027] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A lithium liquid ingot discharge control structure, comprising an output pipe (1) and an intermediate tank (2) connected to the output pipe (1), wherein the bottom end of the intermediate tank (2) is provided with an outlet pipe (3) connected to the intermediate tank (2); characterized in that: The height of the outlet of the liquid outlet pipe (3) is higher than the height of the connection between the liquid outlet pipe (3) and the intermediate tank (2). The top of the intermediate tank (2) is provided with an argon pipe (4) and an exhaust pipe (5). The argon pipe (4) is provided with a first valve (6), and the exhaust pipe (5) is provided with a second valve (7).

2. The lithium liquid ingot discharge control structure as described in claim 1, characterized in that: The outlet pipe (3) includes a horizontally arranged first pipe (8) and a vertically arranged second pipe (9). The first pipe (8) and the second pipe (9) are connected. The outlet of the second pipe (9) is connected to an outlet pipe. The height of the outlet of the second pipe (9) is higher than the height of the connection between the first pipe (8) and the intermediate tank (2). The height of the outlet of the second pipe (9) is lower than the height of the connection between the outlet pipe (1) and the intermediate tank (2).

3. The lithium liquid ingot discharge control structure as described in claim 1, characterized in that: The intermediate tank (2) is equipped with a heating device.

4. The lithium liquid ingot discharge control structure as described in claim 3, characterized in that: The heating device is a heating coil (10), which is electrically connected to a power supply device (11) and is communicatively connected to a controller (12).

5. The lithium liquid ingot discharge control structure as described in claim 1, characterized in that: A level gauge is installed inside the intermediate tank (2).

6. The lithium liquid ingot discharge control structure as described in claim 1, characterized in that: Both the first valve (6) and the second valve (7) are solenoid valves.

7. The lithium liquid ingot discharge control structure as described in claim 1, characterized in that: The output pipe (1), liquid outlet pipe (3), argon gas pipe (4) and exhaust pipe (5) are all connected to the intermediate tank (2) through sealed joints.

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