Molten aluminum refining and degassing equipment for aluminum ingot processing

Abstract

The utility model relates to the technical field of aluminum ingot processing, in particular to molten aluminum refining degassing equipment for aluminum ingot processing, and solves the problems that in the prior art, air outlet holes of an air outlet inner pipe are formed in the position of an outer ring, and a certain distance is generally kept between an air outlet pipe and the bottom of a pool, so that molten aluminum at the bottom of the pool cannot be fully and fully contacted with gas; and the overall hydrogen removal efficiency and quality are reduced. Molten aluminum refining and degassing equipment for aluminum ingot processing comprises a molten aluminum heat preservation pool, a gas storage tank and a conveying pipe. One end of the conveying pipe is connected with the gas outlet end of the gas storage tank, and the other end extends to the bottom of the inner cavity of the molten aluminum heat preservation pool. According to the utility model, the gas outlet holes are uniformly distributed on the gas outlet disc, and the gas outlet disc is in direct contact with the bottom of the pool, so that gas can be uniformly distributed at the whole bottom of the pool, all layers in molten aluminum can be in full contact with inert gas, and the overall efficiency and quality of hydrogen removal are effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of aluminum ingot processing technology, and in particular to an aluminum liquid refining and degassing device for aluminum ingot processing. Background Technology

[0002] Aluminum ingots, as the raw material for aluminum alloy products, occupy an important position in many industries such as aerospace, automobile manufacturing, and building decoration. In the aluminum ingot processing, removing hydrogen and other impurities from molten aluminum is a crucial step to improve the quality of aluminum products. As a core component of this process, the performance and quality of aluminum molten refining degassing equipment have a decisive impact on the purity and mechanical properties of the final product. Especially in the core stage of aluminum molten refining, existing equipment is gradually revealing significant limitations when handling aluminum molten aluminum containing varying concentrations of hydrogen.

[0003] Specifically, utility model patent CN 220887637 U discloses an aluminum molten metal refining and degassing device for aluminum processing, including an aluminum molten metal insulation tank, a gas storage tank, a gas supply pipe, connecting components, and a diversion component. These components achieve effective contact between inert gas and aluminum molten metal, thereby removing hydrogen from the aluminum molten metal. However, this device has certain limitations: the gas outlet of the inner gas outlet pipe is located on the outer ring, and the gas outlet pipe generally maintains a certain distance from the bottom of the tank. This results in the aluminum molten metal at the bottom of the tank not being able to fully contact the gas, reducing the overall hydrogen removal efficiency and quality.

[0004] Therefore, to address the shortcomings of existing technologies, we urgently need a degassing and refining equipment for aluminum ingot processing. This equipment should ensure that all layers within the molten aluminum are in full contact with inert gases to improve the comprehensiveness and reliability of hydrogen removal, thus guaranteeing the safety and effectiveness of aluminum products in various application scenarios. Utility Model Content

[0005] The purpose of this invention is to provide an aluminum liquid refining and degassing device for aluminum ingot processing, which solves the problem in the prior art where the gas outlet of the inner pipe is located on the outer ring, and the gas outlet pipe is generally kept at a certain distance from the bottom of the pool. This results in the aluminum liquid at the bottom of the pool not being able to fully contact the gas, thus reducing the overall hydrogen removal efficiency and quality.

[0006] To achieve the above objectives, this utility model provides an aluminum liquid refining and degassing device for aluminum ingot processing, including an aluminum liquid heat preservation tank, a gas storage tank, and a conveying pipe;

[0007] One end of the conveying pipe is connected to the gas outlet of the gas storage tank, and the other end extends to the bottom of the inner cavity of the aluminum liquid insulation pool.

[0008] The bottom of the inner cavity of the aluminum liquid heat preservation tank is provided with a gas distribution cylinder that can be detachably connected to the end of the conveying pipe. The outer ring of the gas distribution cylinder is provided with several gas outlet discs that are in contact with the bottom of the inner cavity of the aluminum liquid heat preservation tank. Several gas outlet holes are opened on the top of the gas outlet discs.

[0009] Several of the aforementioned air outlet discs are connected to the air distribution cylinder through a connecting structure.

[0010] A control valve is installed on one side of the conveying pipe, and a bend is provided at the corner of the conveying pipe.

[0011] The top center of the gas distribution cylinder is connected to a connecting pipe, and one end of the delivery pipe is connected to the inner wall of the connecting pipe.

[0012] The air outlet holes are arranged in a ring on the top of the air outlet disk, the air outlet disk has a cavity inside, and the thickness of the air outlet disk is 2-5cm.

[0013] The bottom of the outer ring of the gas distribution cylinder is connected to several external threaded pipes, which are arranged in a ring along the circumference of the gas distribution cylinder. The outer ring of each external threaded pipe is threaded with a sealing sleeve.

[0014] The connecting structure includes an air supply pipe and a connecting screw pipe. One end of the connecting screw pipe is connected to the top of the air outlet disc, and the other end is threaded to the inner wall of the air supply pipe. The end of the air supply pipe away from the air outlet disc is threaded to an external threaded pipe.

[0015] This invention relates to an aluminum ingot processing aluminum molten refining and degassing device. Compared to existing technologies where the vent holes of the inner vent pipe are only located on the outer ring, this invention employs a gas distribution cylinder and a vent disc design. This allows inert gas to directly act on the bottom of the aluminum molten insulation tank, overcoming the problem of insufficient gas-aluminum-molten contact in the original design and improving the overall efficiency and quality of hydrogen removal. Furthermore, because the vent disc directly contacts the bottom of the inner cavity of the aluminum molten insulation tank, and the vent holes are evenly distributed on the vent disc, this not only ensures that the gas is evenly dispersed throughout the aluminum molten material but also enhances the stirring effect of the aluminum molten material, further promoting the effective removal of hydrogen. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0017] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0018] Figure 2 This is a schematic diagram of the conveying pipe and the gas distribution cylinder according to an embodiment of the present invention.

[0019] Figure 3 This is a schematic diagram of the structure of the gas distribution cylinder and the connecting pipe according to an embodiment of the present utility model.

[0020] Figure 4 This is a schematic diagram of the sealing sleeve according to an embodiment of the present invention.

[0021] Figure 5 This is a schematic diagram of the structure of the air outlet disc and the connecting screw tube according to an embodiment of the present invention.

[0022] In the diagram: 1. Aluminum liquid insulation tank; 2. Conveying pipe; 3. Gas storage tank; 4. Gas distribution cylinder; 5. Gas outlet disc; 6. Connecting pipe; 7. External threaded pipe; 8. Sealing sleeve; 9. Gas outlet hole; 10. Connecting screw pipe; 11. Gas supply pipe. Detailed Implementation

[0023] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0024] Example 1

[0025] Please see Figure 1-5 As shown in the figure, an aluminum liquid refining and degassing device for aluminum ingot processing in this embodiment includes an aluminum liquid heat preservation tank 1, a gas storage tank 3, and a conveying pipe 2; one end of the conveying pipe 2 is connected to the gas outlet end of the gas storage tank 3, and the other end extends to the bottom of the inner cavity of the aluminum liquid heat preservation tank 1; a gas distribution cylinder 4 is provided at the bottom of the inner cavity of the aluminum liquid heat preservation tank 1 and is detachably connected to the end of the conveying pipe 2; a plurality of gas outlet discs 5 are provided on the outer ring of the gas distribution cylinder 4 and are in contact with the bottom of the inner cavity of the aluminum liquid heat preservation tank 1; a plurality of gas outlet holes 9 are opened on the top of the gas outlet discs 5; the plurality of gas outlet discs 5 are all connected to the gas distribution cylinder 4 through a connecting structure.

[0026] First, the inert gas in the gas storage tank 3 is transported to the bottom of the inner cavity of the aluminum liquid insulation tank 1 through the conveying pipe 2. A gas distribution cylinder 4, detachably connected to the end of the conveying pipe 2, is installed at the bottom of the inner cavity of the aluminum liquid insulation tank 1. The outer circumference of the gas distribution cylinder 4 has several gas outlet discs 5, which directly contact the bottom of the inner cavity of the aluminum liquid insulation tank 1, ensuring that the gas is evenly distributed throughout the entire bottom of the tank. Each gas outlet disc 5 has several gas outlet holes 9 at its top, which are connected to the gas distribution cylinder 4 through a connecting structure. This allows the inert gas to be evenly released into the aluminum liquid from each gas outlet hole 9, ensuring that all layers inside the aluminum liquid are in full contact with the inert gas, effectively removing hydrogen and other impurities from the aluminum liquid.

[0027] Example 2

[0028] Please see Figure 1-5As shown in this embodiment, an aluminum liquid refining and degassing device for aluminum ingot processing has a control valve installed on one side of the conveying pipe 2 and a bend at the corner of the conveying pipe 2. Specifically, the design of installing a control valve on one side of the conveying pipe 2 and setting a bend at the corner of the conveying pipe 2 can accurately control the flow rate and direction of the inert gas, ensuring that the gas can enter the aluminum liquid insulation tank 1 smoothly and evenly, thus improving the flexibility of operation and the uniformity of gas distribution.

[0029] Several vent holes 9 are arranged in a ring on the top of the vent disk 5. The vent disk 5 has an internal cavity and a thickness of 2-5cm. Specifically, the design of several vent holes 9 arranged in a ring on the top of the vent disk 5 and having an internal cavity with a thickness of 2-5cm allows the inert gas to be fully mixed inside the vent disk 5 and then evenly released into the molten aluminum. This increases the contact area and efficiency between the gas and the molten aluminum, thereby more effectively removing hydrogen and other impurities and improving the refining effect.

[0030] The connecting structure includes an air supply pipe 11 and a connecting screw pipe 10. One end of the connecting screw pipe 10 is connected to the top of the air outlet disc 5, and the other end is threaded to the inner wall of the air supply pipe 11. The end of the air supply pipe 11 away from the air outlet disc 5 is threaded to the external threaded pipe 7. Specifically, the design of the connecting structure including the air supply pipe 11 and the connecting screw pipe 10, wherein one end of the connecting screw pipe 10 is connected to the top of the air outlet disc 5, the other end is threaded to the inner wall of the air supply pipe 11, and the end of the air supply pipe 11 away from the air outlet disc 5 is threaded to the external threaded pipe 7, realizes efficient gas transmission and quick installation and disassembly between the components. According to the actual number of required air outlet discs 5, the air outlet discs 5 can be quickly connected to the corresponding external threaded pipes 7 through the air supply pipe 11.

[0031] Example 3

[0032] Please see Figure 1-5 As shown in this embodiment, an aluminum ingot processing aluminum liquid refining degassing device has a connecting pipe 6 at the top center of the gas distribution cylinder 4. One end of the conveying pipe 2 is connected to the inner wall of the connecting pipe 6. Specifically, by connecting the connecting pipe 6 at the top center of the gas distribution cylinder 4 and connecting one end of the conveying pipe 2 to the inner wall of the connecting pipe 6, efficient transmission of inert gas from the gas storage tank 3 to the gas distribution cylinder 4 is achieved. This design simplifies the equipment assembly process, ensures the sealing and stability of gas transmission, reduces the risk of leakage, and improves work efficiency.

[0033] The bottom of the outer ring of the air distribution cylinder 4 is connected to several external threaded pipes 7. These external threaded pipes 7 are arranged in a ring along the circumference of the air distribution cylinder 4. The outer ring of each external threaded pipe 7 is threaded with a sealing sleeve 8. Specifically, the bottom of the outer ring of the air distribution cylinder 4 is connected to several external threaded pipes 7. These external threaded pipes 7 are arranged in a ring along the circumference of the air distribution cylinder 4, and the outer ring of each external threaded pipe 7 is threaded with a sealing sleeve 8. This design allows for flexible adjustment or maintenance of the working state of each air outlet disc 5 according to actual needs, improving the maintainability and flexibility of the equipment. At the same time, it facilitates cleaning and replacement of parts, extending the service life of the equipment.

[0034] This solution includes the following work process:

[0035] When using this aluminum ingot processing aluminum liquid refining and degassing equipment, the inert gas in the gas storage tank 3 is first transported to the bottom of the inner cavity of the aluminum liquid holding tank 1 through the conveying pipe 2. A control valve is installed on one side of the conveying pipe 2, which can precisely control the flow rate and direction of the inert gas, ensuring that the gas can enter the aluminum liquid holding tank 1 smoothly and evenly, improving the flexibility of operation and the uniformity of gas distribution. At the same time, a bend is provided at the corner of the conveying pipe 2 to further ensure the smoothness of gas transmission. At the bottom of the inner cavity of the aluminum liquid holding tank 1, a gas distribution cylinder 4 is provided, which is detachably connected to the end of the conveying pipe 2. The outer ring of the gas distribution cylinder 4 is provided with several gas outlet discs 5. These gas outlet discs 5 are in direct contact with the bottom of the inner cavity of the aluminum liquid holding tank 1, ensuring that the gas can be evenly distributed throughout the bottom of the tank. Each venting disc 5 has several venting holes 9 on its top, and is connected to the gas distribution cylinder 4 through a connecting structure, so that the inert gas can be evenly released into the aluminum liquid from each venting hole 9, thereby ensuring that all layers inside the aluminum liquid can fully contact the inert gas and effectively remove hydrogen and other impurities from the aluminum liquid.

[0036] Furthermore, a connecting pipe 6 is connected to the top center of the gas distributor 4, and one end of the conveying pipe 2 is connected to the inner wall of the connecting pipe 6, realizing the efficient transmission of inert gas from the gas storage tank 3 to the gas distributor 4. This design simplifies the equipment assembly process, ensures the sealing and stability of gas transmission, reduces the risk of leakage, and improves work efficiency. The several outlet holes 9 in the annular array at the top of the outlet disc 5, and the 2-5cm thick cavity inside the outlet disc 5, allow the inert gas to be fully mixed within the outlet disc 5 and then uniformly released into the molten aluminum. This increases the contact area and efficiency between the gas and the molten aluminum, thereby more effectively removing hydrogen and other impurities and improving the refining effect. The bottom of the outer ring of the gas distributor 4 is connected to several externally threaded pipes 7. These externally threaded pipes 7 are arranged in a ring along the circumference of the gas distributor 4, and each externally threaded pipe 7 is threadedly connected to a sealing sleeve 8. This design allows for flexible adjustment or maintenance of the working state of each gas outlet disc 5 according to actual needs, improving the maintainability and flexibility of the equipment, while facilitating cleaning and replacement of parts, and extending the service life of the equipment. Finally, the connecting structure includes a gas supply pipe 11 and a connecting screw pipe 10. One end of the connecting screw pipe 10 is connected to the top of the gas outlet disc 5, and the other end is threaded to the inner wall of the gas supply pipe 11. The design of the end of the gas supply pipe 11 away from the gas outlet disc 5 being threaded to the externally threaded pipe 7 realizes efficient gas transmission and quick installation and disassembly between the components. According to the actual number of gas outlet discs 5 required, the gas outlet discs 5 can be quickly connected to the corresponding externally threaded pipes 7 through the gas supply pipe 11. This modular design not only improves the reliability and ease of use of the equipment, but also greatly simplifies the installation and maintenance process.

[0037] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that implementing all or part of the above embodiments and making equivalent changes in accordance with the claims of this application still fall within the scope of this application.

Claims

1. An aluminum molten metal refining and degassing device for aluminum ingot processing, characterized in that, include: Aluminum molten metal insulation tank, gas storage tank and conveying pipe; One end of the conveying pipe is connected to the gas outlet of the gas storage tank, and the other end extends to the bottom of the inner cavity of the aluminum liquid insulation pool. The bottom of the inner cavity of the aluminum liquid heat preservation tank is provided with a gas distribution cylinder that can be detachably connected to the end of the conveying pipe. The outer ring of the gas distribution cylinder is provided with several gas outlet discs that are in contact with the bottom of the inner cavity of the aluminum liquid heat preservation tank. Several gas outlet holes are opened on the top of the gas outlet discs. Several of the aforementioned air outlet discs are connected to the air distribution cylinder through a connecting structure.

2. The apparatus according to claim 1, wherein A control valve is installed on one side of the conveying pipe, and a bend is provided at the corner of the conveying pipe.

3. The apparatus according to claim 1, wherein The top center of the gas distribution cylinder is connected to a connecting pipe, and one end of the delivery pipe is connected to the inner wall of the connecting pipe.

4. The apparatus according to claim 2, wherein A plurality of the aforementioned air outlets are arranged in a circular array on the top of the air outlet disk, the air outlet disk having an internal cavity, and the thickness of the air outlet disk being 2-5 cm.

5. The apparatus according to claim 3, wherein The bottom of the outer ring of the gas distribution cylinder is connected to several external threaded pipes, which are arranged in a ring along the circumference of the gas distribution cylinder. The outer ring of each external threaded pipe is threaded with a sealing sleeve.

6. The apparatus according to claim 4, wherein The connecting structure includes an air supply pipe and a connecting screw pipe. One end of the connecting screw pipe is connected to the top of the air outlet disc, and the other end is threaded to the inner wall of the air supply pipe. The end of the air supply pipe away from the air outlet disc is threaded to an external threaded pipe.

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