Submerged high-temperature melt discharging valve

Abstract

The utility model discloses an under-liquid high-temperature melt discharging valve which comprises a heat preservation container, a valve body and a valve rod, a feeding pipe of the heat preservation container is connected with upstream equipment, a discharging pipe of the heat preservation container is connected with downstream equipment, and one end of the discharging pipe extends into the heat preservation container and is bent upwards so that an inlet of the discharging pipe can face upwards; the valve body is arranged at an inlet of the discharging pipe; the valve rod is vertically inserted into the valve body, the valve rod is configured to move in the vertical direction and used for opening or closing the valve body, and when the valve body is opened, the melt in the heat preservation container needs to immerse the valve body. According to the valve, the problem of poor sealing caused by a conventional valve can be avoided, the purity of discharged materials is guaranteed, meanwhile, the mode that the valve rod is controlled to move up and down is adopted, on-off of the materials can be accurately controlled, closure is thorough, leakage is avoided, and the accuracy of the discharging amount is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of metallurgical technology, specifically to a submerged high-temperature melt discharge valve. Background Technology

[0002] Some liquid metals (such as lithium) are chemically reactive and cannot come into direct contact with air or water vapor. Therefore, the equipment used for refining these metals requires a high degree of airtightness. Typically, after the metal refining is completed, it needs to be connected to subsequent ingot casting equipment. Currently, valves are used to control the flow of liquid metal into the ingot casting equipment, which is externally connected to the chemical mixing pot. After long-term use, the airtightness becomes poor, which can cause the metal to react with the air and reduce the purity of the final ingot metal. Utility Model Content

[0003] To address the aforementioned issues, this utility model provides a submerged high-temperature melt discharge valve, which avoids the sealing problems associated with conventional valves, thereby ensuring the purity of the discharged material. It also ensures thorough interception and prevents leakage, guaranteeing the accuracy of the discharge volume. It is suitable for high-precision metering and ingot casting.

[0004] Specifically, this utility model is implemented as follows:

[0005] A submerged high-temperature melt discharge valve, comprising:

[0006] The insulated container has an inlet pipe connected to upstream equipment and an outlet pipe connected to downstream equipment; one end of the outlet pipe extends into the insulated container and is bent upward so that its inlet faces upward.

[0007] The valve body is located at the inlet of the discharge pipe;

[0008] A valve stem is inserted vertically into the valve body, and the valve stem is configured to move in a vertical direction to open or close the valve body;

[0009] For the valve to open, the melt inside the insulated container must submerge the valve body.

[0010] Furthermore, the valve body includes:

[0011] The valve core is a hollow tubular structure. Its bottom is connected to the inlet of the discharge pipe, and its top is adapted to the bottom end of the valve stem. When the valve stem is lowered to the low position, the valve core is blocked.

[0012] The valve seat, located at the top of the valve core, is used to guide the valve stem.

[0013] Furthermore, the top of the valve core has a ball-and-cup shaped structure, and the bottom of the valve stem is provided with a valve ball. After the valve stem extends into place, the valve ball and the inner wall of the ball-and-cup shaped valve core form a sealing surface, and the sealing surface is a spherical surface.

[0014] Furthermore, the valve seat is provided with a discharge hole. When the valve body is opened, the melt enters the valve seat through the discharge hole and is discharged from the valve core.

[0015] Furthermore, the insulated container is provided with a valve stem drive component, the output shaft of which passes through the insulated container and is connected to the valve stem to drive the valve stem to move in the vertical direction.

[0016] Furthermore, the insulated container is equipped with a heating element.

[0017] Compared with the prior art, the working principle and beneficial effects of this utility model are as follows:

[0018] (1) The submerged high-temperature melt discharge valve provided by this utility model uses a sealed heat-insulating container as a temporary storage container, which can effectively isolate the air and ensure that the liquid metal inside does not come into contact with the air, thereby ensuring the purity of the discharged material.

[0019] (2) The valve is placed at the bottom of the pot and submerged in the melt. There is no need to heat the valve separately, and there is no need to worry about oxide residue clogging it. It has the characteristics of corrosion resistance, high temperature resistance, high response, high efficiency and high sealing.

[0020] (3) By using the up-and-down movement of the control valve stem, the response speed is fast, the material flow can be accurately controlled, and the flow is completely blocked without leakage, ensuring the accuracy of the discharge amount. It is suitable for high-precision metering and ingot casting.

[0021] (4) The valve body has a simple structure, which is easy to repair and replace, and can reduce maintenance costs. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the submerged high-temperature melt discharge valve in Example 1;

[0023] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle.

[0024] Figure label:

[0025] 1-Chemical pot; 11-Discharge pipe; 2-Valve stem; 21-Valve ball; 3-Valve stem drive; 41-Valve core; 42-Valve seat; 43-Discharge hole; 5-Heating component. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0027] Example 1

[0028] like Figure 1As shown, this embodiment provides a submerged high-temperature melt discharge valve, including: an insulated container, a valve body, a valve stem 2, and a valve stem drive 3. The insulated container is a melting pot 1 with an external heating component 5 to ensure that the material in the melting pot 1 is always in a molten state. The melt completely submerges the valve body, ensuring that the melt can flow smoothly out from the discharge pipe 11. One end of the discharge pipe 11 of the insulated container 1 extends into the interior of the insulated container 1, and this end is curved with its inlet facing upward. The valve body is located at the inlet of the discharge pipe 11, and the valve stem 2 is vertically inserted into the valve body. The valve body is opened and closed by raising and lowering the valve stem 2. The raising and lowering of the valve stem 2 is achieved by the valve stem drive 3, which can be selected from cylinders, hydraulic cylinders, electric cylinders, electromagnets, etc., according to the actual working conditions.

[0029] Specifically, such as Figure 2 As shown, the valve body includes a valve core 41 and a valve seat 42. The valve core 41 is a hollow tubular structure, with both ends connected to the valve seat 42 and the discharge pipe 11 respectively by threads. The top end is a ball-and-cup structure, and a valve ball 21 is provided at the bottom of the valve stem. The valve ball 21 is adapted to the top of the valve core 41. When the valve stem 2 extends into the position, the valve ball 21 and the end of the valve core 41 enter the valve core 41, forming a sealing surface with the inner wall of the ball-and-cup shape of the valve core 41. The sealing performance is improved by the spherical sealing method, ensuring the effective closure of the valve.

[0030] The valve seat 42 serves as a guide and discharge mechanism, used to guide the valve ball 21 and discharge material. Several discharge holes 43 are provided on the side wall of the valve seat 42. When the valve ball 21 rises, separates from the valve core 41, and rises to a position higher than the discharge holes 43, the discharge holes 43 are exposed, and the material enters the interior of the valve seat 42 through the discharge holes 43 and is discharged from the valve core 41.

[0031] The above-described specific examples are for illustrative purposes only and are not intended to limit the scope of this invention. Those skilled in the art to which this invention pertains can make various simple deductions, modifications, or substitutions based on the concept of this invention.

Claims

1. A submerged high-temperature melt discharge valve, characterized in that, include: The insulated container has an inlet pipe connected to the upstream equipment and an outlet pipe (11) connected to the downstream equipment; one end of the outlet pipe (11) extends into the insulated container and is bent upward so that its inlet faces upward. The valve body is located at the inlet of the discharge pipe (11); A valve stem (2) is inserted vertically into the valve body, and the valve stem (2) is configured to move in the vertical direction to open or close the valve body; For the valve to open, the melt inside the insulated container must submerge the valve body.

2. The submerged high-temperature melt discharge valve as described in claim 1, characterized in that, The valve body includes: The valve core (41) is a hollow tubular structure. Its bottom is connected to the inlet of the discharge pipe (11), and its top is adapted to the bottom of the valve stem (2). When the valve stem (2) is lowered to the low position, the valve core (41) is blocked. The valve seat (42) is located on top of the valve core (41) and is used to guide the valve stem (2).

3. The submerged high-temperature melt discharge valve as described in claim 2, characterized in that, The top of the valve core (41) is a ball-and-bowl shaped structure, and the bottom of the valve stem (2) is provided with a valve ball (21). After the valve stem (2) is inserted into place, the valve ball (21) and the inner wall of the valve core (41) form a sealing surface, and the sealing surface is a spherical surface.

4. The submerged high-temperature melt discharge valve as described in claim 2 or 3, characterized in that, The valve seat (42) is provided with a discharge hole (43). When the valve body is opened, the melt enters the valve seat (42) through the discharge hole (43) and is discharged from the valve core (41).

5. The submerged high-temperature melt discharge valve as described in claim 1, characterized in that, The insulated container is provided with a valve stem drive component. The output shaft of the valve stem drive component passes through the insulated container and is connected to the valve stem (2) to drive the valve stem (2) to move in the vertical direction.

6. The submerged high-temperature melt discharge valve as described in claim 1, characterized in that, The insulated container is equipped with a heating element (5).

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