A high-purity aluminum impurity targeting removal auxiliary device

Abstract

The utility model relates to a kind of high-purity aluminum impurity targeted removal auxiliary device, it is characterized by: including powder spraying module and pipeline fixed drive module;In the chemical reaction of targeted removal impurity of high-purity aluminum in the utility model, powder spraying type feeding mode is used to ensure that the powder participating in reaction can fully enter into molten aluminum liquid and carry out chemical reaction with impurity, reduce the content of impurity in high-purity aluminum;And the power source of powder spraying feeding adopts pulse unit, and inert gas is used to wrap and carry powder into aluminum liquid, the device solves the powder feeding problem to aluminum liquid, and ensures that the substance participating in impurity removal can be fully mixed in aluminum liquid, improves the impurity removal effect of high-purity aluminum.

Description

Technical Field

[0001] This utility model relates to the field of high-purity aluminum processing technology, and in particular to an auxiliary device for targeted removal of impurities in high-purity aluminum. Background Technology

[0002] Currently, recycled aluminum alloys are obtained by remelting and refining aluminum scrap. However, due to the variety and complex composition of aluminum scrap, impurities such as Mg, Ca, and Li are introduced into the molten aluminum during the smelting process. Mg, Ca, and Li are alkali metal elements and are chemically reactive. When their content exceeds a certain level, they will affect the fluidity and surface quality of the molten aluminum, thereby affecting casting performance.

[0003] By adding sodium chloride, aluminum fluoride, sodium fluorosilicate, and hexachloroethane to molten aluminum and stirring thoroughly, the following reactions occur: Sodium fluorosilicate decomposes upon heating (Na₂SiF₆ → SiF₄ + 2NaF), and the resulting NaF reacts with Ca to remove some Ca impurities (NaF + Ca → Na + CaF₂). Aluminum fluoride reacts with Mg, Ca, and Li according to the following equations: AlF₃ + Mg → Al + MgF₂; AlF₃ + Li → Al + LiF; AlF₃ + Ca → Al + CaF₂. Hexachloroethane, upon heating, ultimately produces carbon and chlorine gas. Chlorine gas then reacts with Mg, Ca, and Li according to the following equations: Cl₂ + Li → LiCl; Cl₂ + Mg → MgCl₂; Cl₂ + Ca → CaCl₂. The addition of sodium fluorosilicate, aluminum fluoride, and hexachloroethane reduces the impurities Mg, Ca, and Li in the molten aluminum through these reactions, thereby improving the fluidity and surface quality of the molten aluminum and enhancing its casting performance.

[0004] The above-mentioned raw materials are added directly to the molten aluminum, which results in poor mixing and uneven distribution, leading to insufficient chemical reaction. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide an auxiliary device for targeted removal of high-purity aluminum impurities, which can solve the problem of uneven distribution of raw materials added in general targeted removal of high-purity aluminum impurities.

[0006] To solve the above-mentioned technical problems, the technical solution of this utility model is: a high-purity aluminum impurity targeted removal auxiliary device, the innovation of which is: including a powder spraying module and a pipeline fixing drive module;

[0007] The powder spraying module is located at the edge of an aluminum melting pool, and targeted impurity removal powder is added to the pool through the module. A powder spraying pipe is connected to the output end of the module. The module includes a powder hopper, a powder feeding unit, a powder outlet cylinder, and a pulse unit. The powder hopper is funnel-shaped, and its bottom end is electrically connected to the powder feeding unit. The powder outlet cylinder is located at the bottom of the powder feeding unit and is electrically connected to it. The pulse unit is connected to one end of the powder outlet cylinder, and the other end of the cylinder is connected to the powder spraying pipe.

[0008] The powder feeding unit includes a housing, a powder feeding wheel, and a powder feeding motor; the upper and lower ends of the housing are respectively electrically connected to the powder hopper and the powder discharge cylinder; the powder feeding wheel is rotatably mounted inside the housing, and the powder feeding wheel is provided with a through groove for transferring powder; the powder feeding motor is mounted inside the housing, and the powder feeding motor and the powder feeding wheel are connected by a magnetic coupler, and rotating the powder feeding wheel controls the opening and closing of the through groove on the powder feeding wheel and the powder hopper;

[0009] The pulse unit includes an air tank and a pulse pipeline; the air tank is filled with inert gas, and one end of the pulse pipeline is connected to the air tank, with a pulse solenoid valve installed at the connection between the pulse pipeline and the air tank; the other end of the pulse pipeline is connected to one end of the powder outlet cylinder.

[0010] The pipeline fixing drive module is located above the aluminum melting pool, and the pipeline fixing drive module is used to drive the powder spraying pipeline to move horizontally above the aluminum liquid pool, so as to spray the powder in the powder hopper onto the surface of the aluminum liquid in the aluminum melting pool and mix it with the molten aluminum liquid.

[0011] Furthermore, the pipe fixing drive module includes a drive motor and a powder spraying pipe frame; the drive motor is installed at the edge of the aluminum melting pool, and the output end of the drive motor extends above the aluminum melting pool; the powder spraying pipe frame has an L-shaped structure, and one end of the powder spraying pipe frame is connected to the output end of the drive motor, which drives the powder spraying pipe frame to swing in a vertical plane; the powder spraying pipe is fixedly installed on the powder spraying pipe frame, and the end of the powder spraying pipe is provided with a powder spraying nozzle for spraying the powder in the powder outlet cylinder into the surface of the molten aluminum in the aluminum melting pool.

[0012] The advantages of this utility model are:

[0013] 1) In the chemical reaction for targeted removal of impurities from high-purity aluminum in this utility model, a powder spraying feeding method is adopted to ensure that the powder participating in the reaction can fully enter the molten aluminum liquid and react chemically with the impurities, thereby reducing the impurity content in high-purity aluminum; and the power source for powder spraying feeding adopts a pulse unit, and inert gas is used to carry the powder into the aluminum liquid. This device solves the problem of feeding powder into the aluminum liquid and ensures that the substances participating in impurity removal can be fully mixed in the aluminum liquid, thereby improving the impurity removal effect of high-purity aluminum. Attached Figure Description

[0014] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0015] Figure 1 This is a schematic diagram of the structure of an auxiliary device for targeted removal of impurities in high-purity aluminum according to the present invention. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0017] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0018] like Figure 1 The high-purity aluminum impurity targeted removal auxiliary device shown includes a powder spraying module 1 and a pipeline fixing drive module 2.

[0019] The powder spraying module 1 is located at the edge of a molten aluminum pool 3. Targeted impurity removal powder is added to the molten aluminum pool 3 through the powder spraying module 1. The output end of the powder spraying module 1 is connected to a powder spraying pipe 4. The powder spraying module 1 includes a powder hopper 11, a powder feeding unit 12, a powder outlet cylinder 13, and a pulse unit 14. The powder hopper 11 is funnel-shaped, and its bottom end is electrically connected to the powder feeding unit 12. The powder outlet cylinder 13 is located at the bottom end of the powder feeding unit 12 and is electrically connected to it. The pulse unit 14 is connected to one end of the powder outlet cylinder 13, and the other end of the powder outlet cylinder 13 is connected to the powder spraying pipe 4.

[0020] The powder feeding unit 12 includes a housing 121, a powder feeding wheel 122, and a powder feeding motor 123. The upper and lower ends of the housing 121 are respectively connected to the powder hopper 11 and the powder discharge cylinder 13. The powder feeding wheel 122 is rotatably disposed inside the housing 121, and the powder feeding wheel 12 is provided with a through groove for transferring powder. The powder feeding motor 123 is disposed inside the housing 121, and the powder feeding motor 123 and the powder feeding wheel 122 are connected by a magnetic coupler. Rotating the powder feeding wheel 122 controls the opening and closing of the through groove on the powder feeding wheel 122 and the powder hopper 11.

[0021] The pulse unit 14 includes an air reservoir 141 and a pulse pipe 142; the air reservoir 141 is filled with inert gas, and one end of the pulse pipe 142 is connected to the air reservoir 141. A pulse solenoid valve 143 is provided at the connection between the pulse pipe 142 and the air reservoir 141; the other end of the pulse pipe 142 is connected to one end of the powder discharge cylinder 13.

[0022] The pipe fixing drive module 2 is set above the aluminum melting pool 3, and the pipe fixing drive module 2 is used to drive the powder spraying pipe 4 to move horizontally above the aluminum liquid pool 3, so as to spray the powder in the powder bin 11 onto the surface of the aluminum liquid in the aluminum melting pool 3 by spraying powder and fully mixing it with the molten aluminum liquid.

[0023] The pipe fixing drive module 2 includes a drive motor 21 and a powder spraying pipe frame 22. The drive motor 21 is installed at the edge of the aluminum melting pool 3, and the output end of the drive motor 21 extends above the aluminum melting pool 3. The powder spraying pipe frame 22 has an L-shaped structure, and one end of the powder spraying pipe frame 22 is connected to the output end of the drive motor 21. The drive motor 21 drives the powder spraying pipe frame 22 to swing in the horizontal plane. The powder spraying pipe 4 is fixedly installed on the powder spraying pipe frame 22, and the end of the powder spraying pipe 4 is provided with a powder spraying nozzle for spraying the powder in the powder discharge cylinder 13 into the surface of the aluminum liquid in the aluminum melting pool 3.

[0024] The working principle of this invention is as follows: In the chemical reaction for targeted removal of impurities from high-purity aluminum, a powder spraying feeding method is adopted to ensure that the powder participating in the reaction can fully enter the molten aluminum liquid and react chemically with the impurities, thereby reducing the impurity content in the high-purity aluminum. Furthermore, the power source for the powder spraying feeding adopts a pulse unit, and inert gas is used to encapsulate the powder into the aluminum liquid. This device solves the problem of feeding powder into the aluminum liquid and ensures that the substances participating in impurity removal can be fully mixed in the aluminum liquid, thereby improving the impurity removal effect of high-purity aluminum.

[0025] Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of this utility model as claimed.

Claims

1. A high purity aluminum impurity targeted removal assist device, characterized by: Includes a powder spraying module and a pipe fixing drive module; The powder spraying module is located at the edge of an aluminum melting pool, and targeted impurity removal powder is added to the pool through the module. A powder spraying pipe is connected to the output end of the module. The module includes a powder hopper, a powder feeding unit, a powder outlet cylinder, and a pulse unit. The powder hopper is funnel-shaped, and its bottom end is electrically connected to the powder feeding unit. The powder outlet cylinder is located at the bottom of the powder feeding unit and is electrically connected to it. The pulse unit is connected to one end of the powder outlet cylinder, and the other end of the cylinder is connected to the powder spraying pipe. The powder feeding unit includes a housing, a powder feeding wheel, and a powder feeding motor; the upper and lower ends of the housing are respectively electrically connected to the powder hopper and the powder discharge cylinder; the powder feeding wheel is rotatably mounted inside the housing, and the powder feeding wheel is provided with a through groove for transferring powder; the powder feeding motor is mounted inside the housing, and the powder feeding motor and the powder feeding wheel are connected by a magnetic coupler, and rotating the powder feeding wheel controls the opening and closing of the through groove on the powder feeding wheel and the powder hopper; The pulse unit includes an air tank and a pulse pipeline; the air tank is filled with inert gas, and one end of the pulse pipeline is connected to the air tank, with a pulse solenoid valve installed at the connection between the pulse pipeline and the air tank; the other end of the pulse pipeline is connected to one end of the powder outlet cylinder. The pipeline fixing drive module is located above the aluminum melting pool, and the pipeline fixing drive module is used to drive the powder spraying pipeline to move horizontally above the aluminum liquid pool, so as to spray the powder in the powder hopper onto the surface of the aluminum liquid in the aluminum melting pool and mix it with the molten aluminum liquid.

2. The apparatus for assisting removal of impurities from a high purity aluminum target according to claim 1, wherein: The pipe fixing drive module includes a drive motor and a powder spraying pipe frame; the drive motor is installed at the edge of the aluminum melting pool, and the output end of the drive motor extends above the aluminum melting pool; the powder spraying pipe frame has an L-shaped structure, and one end of the powder spraying pipe frame is connected to the output end of the drive motor, which drives the powder spraying pipe frame to swing in a horizontal plane; the powder spraying pipe is fixedly installed on the powder spraying pipe frame, and the end of the powder spraying pipe is provided with a powder spraying nozzle for spraying the powder in the powder outlet cylinder into the surface of the molten aluminum in the aluminum melting pool.

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