Gas and slag purging box

Abstract

The application relates to a gas and slag removal purification box, which is provided with an aluminum liquid inlet and an aluminum liquid outlet; a powder injection refining module is arranged in the box body structure and is connected with the aluminum liquid inlet and used for conveying a refining agent and inert gas and performing powder injection refining on aluminum liquid input through the aluminum liquid inlet; a powder injection refining and standing module is connected with the powder injection refining module and used for aluminum liquid standing; a pure gas refining module is connected with the powder injection refining and standing module and used for pure inert gas refining; and a pure gas refining and standing module is connected with the pure gas refining module and the aluminum liquid outlet and used for aluminum liquid standing and output. The application provides an innovative design of on-line small-melting-pool refining, uniform powder feeding and uniform gas injection, realizes comprehensive coverage and continuous purification of the aluminum liquid, effectively overcomes the dead angle and process control standardization problem existing in traditional furnace refining, realizes efficient gas and slag removal, and further greatly reduces the inclusion content in the production and manufacturing process, reduces product loose defects, and improves the yield and good product rate.

Description

Technical Field

[0001] This application relates to the field of aluminum alloy smelting and casting, and in particular to a degassing and slag removal purification box. Background Technology

[0002] In the smelting and casting process of aluminum and aluminum alloys, the purity of the melt directly affects the mechanical properties, corrosion resistance, and machinability of the final product. Molten aluminum readily reacts with water vapor and oxygen in the air to form oxide inclusions, mainly composed of Al2O3, and dissolves hydrogen, leading to defects such as porosity and inclusions in the castings.

[0003] Traditional refining methods use inert gas, which can partially remove hydrogen, but its efficiency in removing micron-sized inclusions is limited, making it difficult to meet the stringent purity requirements of high-end aerospace, automotive, and electronics industries. Furthermore, traditional powder spraying refining uses inert gas as a carrier, employing iron pipes or refining carts to deliver the refining agent into the molten aluminum for reaction. Refining is achieved by operating in designated areas within the furnace. This approach introduces problems such as refining dead zones, uneven powder delivery, and difficulties in standardizing process control. Utility Model Content

[0004] Therefore, it is necessary to provide a degassing and slag removal purification box.

[0005] One embodiment of this application is a degassing and slag removal purification box, which includes a box structure and a powder spraying refining module, as well as a powder spraying refining stationary module, a pure gas refining module, and a pure gas refining stationary module disposed in the box structure.

[0006] The box structure is equipped with an aluminum liquid inlet and an aluminum liquid outlet;

[0007] The powder spraying refining module is located in the box structure and is connected to the aluminum liquid inlet. It is used to transport refining agent and inert gas to perform powder spraying refining on the aluminum liquid input through the aluminum liquid inlet.

[0008] The powder spraying refining settling module is connected to the powder spraying refining module and is used for settling molten aluminum.

[0009] The pure gas refining module is connected to the powder spraying refining and settling module and is used for pure inert gas refining.

[0010] The pure gas refining and settling module is connected to both the pure gas refining module and the aluminum liquid outlet, and is used for aluminum liquid settling and output.

[0011] The aforementioned degassing and slag removal purification box, through the coordinated design of its box structure, powder spraying refining module, powder spraying refining settling module, pure gas refining module, and pure gas refining settling module, proposes an innovative design for online small molten pool refining. This ensures uniform powder feeding and spraying, achieving comprehensive coverage and continuous purification of the molten aluminum. It effectively overcomes the dead zones and process control standardization challenges inherent in traditional furnace refining, thus achieving highly efficient degassing and slag removal. This significantly reduces inclusion content during production, decreases product porosity defects, and improves yield and quality. Furthermore, it features a simple structure and wide applicability. With its convenient advantages, the small molten pool design is easy to lay out and integrate with other processes. The entire production process requires almost no human control, which saves labor, avoids the production safety risks of manual operation, and reduces the uncertainty of human operation, thereby ensuring the standardization, consistency, stability and reliability of the purification effect as much as possible. On the other hand, the optimized structural layout is conducive to the removal of hydrogen, light and heavy oxide inclusions, and can meet the stringent requirements of different grades of aluminum melt for high cleanliness. Thus, it provides the aluminum processing industry with a safe, healthy, efficient and universally applicable new purification mode.

[0012] In some embodiments, the spray refining module includes a spray refining chamber, a permanent magnet stirrer, a spray refining machine, and a ceramic refining tube;

[0013] The powder spraying refining chamber is set in the box structure. The powder spraying refining machine and the ceramic refining tube are respectively set in the powder spraying refining chamber. The ceramic refining tube is used to spray out refining agent and inert gas. The powder spraying refining machine sprays powder to refine the aluminum liquid in the powder spraying refining chamber.

[0014] The permanent magnet stirrer has a stirring section located in the powder spraying refining chamber for stirring the molten aluminum in the powder spraying refining chamber.

[0015] In some embodiments, the permanent magnet stirrer is disposed outside the box structure, and the stirring part is located at the bottom of the powder spraying refining chamber for driving the aluminum liquid to rotate horizontally; or, the permanent magnet stirrer is disposed inside the box structure; or, the ceramic refining tube is disposed at the bottom of the powder spraying refining chamber.

[0016] In some embodiments, the powder spraying refining settling module includes a powder spraying refining settling chamber that is connected to both the powder spraying refining chamber and the pure gas refining module, for settling the molten aluminum flowing from the powder spraying chamber.

[0017] The box structure is provided with a first heat-conducting partition and a first channel. The powder spraying refining chamber and the powder spraying refining stationary chamber are separated by the first heat-conducting partition and connected by the first channel.

[0018] In some embodiments, the first channel is a triangular channel, and in the direction of gravity, the bottom of the first heat-conducting partition is at a predetermined distance from the first channel; or,

[0019] The powder spraying refining settling module also includes a first immersion heater installed in the powder spraying refining settling chamber for heating and maintaining the temperature of the molten aluminum in the powder spraying refining settling chamber.

[0020] In some embodiments, the pure gas refining module includes a pure gas refining chamber and a refining rotor disposed in the pure gas refining chamber;

[0021] The pure gas refining chamber is connected to both the powder spraying refining settling module and the powder spraying refining settling module.

[0022] The refining rotor is used to spray pure inert gas to refine the molten aluminum flowing in from the powder spraying refining stationary module.

[0023] In some embodiments, the housing structure is provided with a second heat-conducting partition and a second channel. The powder spraying refining settling module and the pure gas refining chamber are separated by the second heat-conducting partition and connected by the second channel; or...

[0024] The refining rotor is used to spray pure inert gas in a rotating manner, forming a cluster of pure inert gas bubbles in the molten aluminum.

[0025] In some embodiments, the pure gas refining and settling module includes a pure gas refining and settling chamber that is connected to both the pure gas refining module and the aluminum liquid outlet, for settling and outputting the aluminum liquid.

[0026] The pure gas refining and settling module also includes a second immersion heater installed in the pure gas refining and settling chamber, which is used to heat and keep the aluminum liquid in the pure gas refining and settling chamber.

[0027] The box structure is equipped with a third heat-conducting partition and a third channel. The pure gas refining module and the pure gas refining stationary chamber are separated by the third heat-conducting partition and connected by the third channel.

[0028] In some embodiments, the third channel is a triangular channel, and the bottom of the third heat-conducting partition is at a predetermined distance from the third channel in the direction of gravity.

[0029] In some of these embodiments, the aluminum liquid inlet is higher than the aluminum liquid outlet in the direction of gravity. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the structure of an embodiment of the degassing and slag removal purification box described in this application.

[0032] Figure 2 for Figure 1 Another schematic diagram of the embodiment shown.

[0033] Figure 3 for Figure 1 A schematic diagram of the aluminum liquid flow direction in the illustrated embodiment.

[0034] Figure 4 for Figure 3 A schematic cross-sectional view along the AA direction of the embodiment shown.

[0035] Figure 5 This is a schematic diagram of another embodiment of the degassing and slag removal purification box described in this application.

[0036] Reference numerals: 100 for degassing and slag removal purification box, 110 for box structure, 120 for powder spraying refining module, 130 for powder spraying refining settling module, 140 for pure gas refining module, and 150 for pure gas refining settling module;

[0037] First heat-conducting baffle 111, second heat-conducting baffle 112, third heat-conducting baffle 113, fourth heat-conducting baffle 114, first channel 115, second channel 116, third channel 117, aluminum liquid inlet 118, aluminum liquid outlet 119, powder spraying refining chamber 121, permanent magnet stirrer 122, powder spraying refining machine 123, ceramic refining tube 124, first immersion heater 131, powder spraying refining settling chamber 132, pure gas refining chamber 141, refining rotor 142, pure gas refining settling chamber 151, second immersion heater 152. Detailed Implementation

[0038] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0039] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application's specification are for illustrative purposes only and do not represent the only possible implementation.

[0040] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0041] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0042] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and or" as used in this application includes any and all combinations of one or more of the associated listed items.

[0043] This application discloses a degassing and slag removal purification box, which includes some or all of the technical features of the following embodiments; that is, the degassing and slag removal purification box includes some or all of the following structures. In one embodiment of this application, a degassing and slag removal purification box includes a box structure and a powder spraying refining module, as well as a powder spraying refining settling module, a pure gas refining module, and a pure gas refining settling module disposed in the box structure; the box structure is provided with an aluminum liquid inlet and an aluminum liquid outlet; the powder spraying refining module is partially located in the box structure and is connected to the aluminum liquid inlet, for conveying refining agent and inert gas, and for powder spraying refining of the aluminum liquid input through the aluminum liquid inlet; the powder spraying refining settling module is connected to the powder spraying refining module for aluminum liquid settling; the pure gas refining module is connected to the powder spraying refining settling module for pure inert gas refining; the pure gas refining settling module is connected to the pure gas refining module and the aluminum liquid outlet respectively, for aluminum liquid settling and output. The aforementioned degassing and slag removal purification box, through the coordinated design of its box structure, powder spraying refining module, powder spraying refining settling module, pure gas refining module, and pure gas refining settling module, proposes an innovative design for online small molten pool refining. This ensures uniform powder feeding and spraying, achieving comprehensive coverage and continuous purification of the molten aluminum. It effectively overcomes the dead zones and process control standardization challenges inherent in traditional furnace refining, thus achieving highly efficient degassing and slag removal. This significantly reduces inclusion content during production, decreases product porosity defects, and improves yield and quality. Furthermore, it features a simple structure and wide applicability. With its convenient advantages, the small molten pool design facilitates layout and integration with other processes. The entire production process requires almost no human intervention, saving labor, avoiding the safety risks of manual operation, and reducing the uncertainty of human intervention. This ensures the standardization, consistency, stability, and reliability of the purification effect as much as possible. Furthermore, the optimized structural layout facilitates the removal of hydrogen, light and heavy oxide inclusions, and can adapt to the stringent high-cleanliness requirements of different grades of aluminum molten metal. Therefore, it provides the aluminum processing industry with a safe, healthy, efficient, and universally applicable new purification model. The following section will combine... Figures 1 to 5 The degassing and slag removal purification box is described in detail.

[0044] In some embodiments, a degassing and slag removal purification box 100 is as follows: Figure 1 As shown, it includes a box structure 110, a powder spraying refining module 120, a powder spraying refining stationary module 130, a pure gas refining module 140, and a pure gas refining stationary module 150; the powder spraying refining stationary module 130, the pure gas refining module 140, and the pure gas refining stationary module 150 are all disposed within the box structure 110; combined with Figure 2The box structure 110 is provided with an aluminum liquid inlet 118 and an aluminum liquid outlet 119; the powder spraying refining module 120 is partially located in the box structure 110 and is connected to the aluminum liquid inlet 118, used to transport refining agent and inert gas, and to perform powder spraying refining on the aluminum liquid input through the aluminum liquid inlet 118; the powder spraying refining settling module 130 is connected to the powder spraying refining module 120 and is used for aluminum liquid settling; the pure gas refining module 140 is connected to the powder spraying refining settling module 130 and is used for pure inert gas refining; the pure gas refining settling module 150 is connected to the pure gas refining module 140 and the aluminum liquid outlet 119 respectively, and is used for aluminum liquid settling and output.

[0045] This structural design, through the coordination of the box structure 110, the powder spraying refining module 120, the powder spraying refining stationary module 130, the pure gas refining module 140, and the pure gas refining stationary module 150, proposes an innovative design for online small molten pool refining. It ensures uniform powder feeding and spraying, achieving comprehensive coverage and continuous purification of the molten aluminum. This effectively overcomes the dead zones and process control standardization challenges inherent in traditional furnace refining, thereby achieving efficient degassing and slag removal. This significantly reduces inclusion content during production, decreases product porosity, and improves yield and quality. Furthermore, it possesses… With its simple structure and convenient application, the small molten pool design is easy to lay out and integrate with other processes. The entire production process requires almost no human control, which saves labor, avoids the production safety risks of manual operation, and reduces the uncertainty of human operation, thereby ensuring the standardization, consistency, stability and reliability of the purification effect as much as possible. On the other hand, the optimized structural layout is conducive to the removal of hydrogen, light and heavy oxide inclusions, and can meet the stringent requirements of different grades of aluminum melt for high cleanliness. Thus, it provides the aluminum processing industry with a safe, healthy, efficient and universally applicable new purification mode.

[0046] In various embodiments, the molten aluminum, also referred to as aluminum melt, enters the powder spraying refining module 120 through the molten aluminum inlet 118, and after passing through the powder spraying refining settling module 130, the pure gas refining module 140, and the pure gas refining settling module 150, it flows out through the molten aluminum outlet 119. To utilize the downward flow path of the molten aluminum due to gravity, in some embodiments, the molten aluminum inlet 118 is higher than the molten aluminum outlet 119 in the direction of gravity; that is, the height of the molten aluminum inlet 118 is higher than the height of the molten aluminum outlet 119. Combined with... Figure 1 and Figure 2 As an example, for an embodiment having a first channel 115, a second channel 116 and a third channel 117, the following are arranged in order of height from high to low in the direction of gravity: aluminum liquid inlet 118, first channel 115, second channel 116, third channel 117, and aluminum liquid outlet 119.

[0047] This structural design achieves gravity-guided flow, fully utilizing the natural flow force of the molten aluminum itself without the need for additional conveying devices. This simplifies the overall structure of the degassing and slag removal purification box 100, reduces equipment manufacturing costs and energy consumption, and avoids secondary disturbance to the molten aluminum that may be caused by external conveying, reducing the risk of impurities re-mixing in and further ensuring the purification effect. Furthermore, the stepped height distribution of the molten aluminum inlet 118, first channel 115, second channel 116, third channel 117, and molten aluminum outlet 119... The gravity-driven flow pattern ensures a stable and orderly flow path for the molten aluminum in each module, extending the residence time of the molten aluminum in the powder spraying refining module 120, the powder spraying refining settling module 130, the pure gas refining module 140, and the pure gas refining settling module 150. This ensures that the refining agent and the inert gas interact fully, improving the removal efficiency of hydrogen and light and heavy oxide inclusions. Furthermore, the gravity-driven flow pattern is highly stable, unaffected by human intervention, and synergistically enhances the standardization and consistency of the purification process, thus improving product quality stability.

[0048] To improve powder feeding uniformity and air jet uniformity, in some embodiments, such as Figure 2 As shown, the powder spraying refining module 120 includes a powder spraying refining chamber 121, a permanent magnet stirrer 122, a powder spraying refining machine 123, and a ceramic refining tube 124. The powder spraying refining chamber 121 is disposed within the housing structure 110. The powder spraying refining machine 123 and the ceramic refining tube 124 are respectively disposed within the powder spraying refining chamber 121. The ceramic refining tube 124 is used to spray out the refining agent and the inert gas. The powder spraying refining machine 123 performs powder spraying refining on the molten aluminum in the powder spraying refining chamber 121. The permanent magnet stirrer 122 has a stirring section located within the powder spraying refining chamber 121 for stirring the molten aluminum in the powder spraying chamber 121. In some embodiments, the ceramic refining tube 124 is disposed at the bottom of the powder spraying refining chamber 121 to spray out the refining agent and the inert gas from the bottom of the powder spraying chamber 121. As an example, the number of the powder spraying refining machines 123 is two.

[0049] This structural design achieves dual uniformity in powder feeding and jet spraying through multi-component collaboration. The ceramic refining tube 124, located at the bottom of the powder spraying refining chamber 121, can spray refining agent and inert gas upwards from the bottom of the molten aluminum, avoiding uneven action caused by the accumulation of gas and refining agent on the surface. Combined with the symmetrical layout of the two powder spraying refining machines 123, it further expands the refining coverage, ensuring that all areas of the molten aluminum can fully contact the refining medium, effectively solving the problem of incomplete local treatment in traditional refining and significantly improving degassing and slag removal efficiency. On the other hand, the stirring section of the permanent magnet stirrer 122 extends deep into the molten aluminum inside the powder spraying refining chamber 121, forming a stable and gentle stirring flow field. This breaks down the concentration and temperature gradients within the molten aluminum, promoting... The refining agent and inert gas diffuse evenly in the molten aluminum, avoiding the violent disturbance caused by mechanical stirring, reducing secondary oxidation and slag inclusions, ensuring the stability of the purification process, and reducing the risk of product porosity defects. On the other hand, the modular combination structure is both functional and practical, with each component having a clear division of labor and easy maintenance and replacement. The temperature and corrosion resistance of the ceramic refining tube 124 can extend the service life of the equipment. The configuration of two powder spraying refining machines 123 can adapt to different aluminum melt processing requirements. The overall design and subsequent links such as the powder spraying refining settling module 130 form an efficient connection, further enhancing the standardized operation capability of the degassing and slag removal purification box 100, and providing a more reliable high-cleanliness aluminum melt preparation solution for the aluminum processing industry.

[0050] The permanent magnet stirrer 122 can have multiple design options, and in some embodiments, such as Figure 2 As shown, the permanent magnet stirrer 122 is disposed outside the housing structure 110, and the stirring part is located at the bottom of the powder spraying refining chamber 121, used to drive the aluminum liquid to rotate horizontally. In other embodiments, the permanent magnet stirrer 122 is disposed inside the housing structure 110. This structural design, on the one hand, allows the refining agent and inert gas to diffuse evenly in the aluminum liquid by driving it to rotate horizontally, while avoiding contact between the stirrer body and the high-temperature aluminum liquid, thus extending the equipment life; on the other hand, the option of placing it inside the housing structure 110 allows for flexible adjustment of its position according to the space of the powder spraying refining chamber 121, meeting the needs of different aluminum liquid processing scenarios. On the other hand, both optional options can optimize the flow state of the aluminum liquid through stable stirring, and together with the powder spraying refining machine 123 and the ceramic refining tube 124, further ensure the uniformity of powder feeding and air spraying, reduce the local dead corners of traditional stirring, and help improve the degassing and slag removal effect.

[0051] To minimize the entry of impurities from the powder spraying refining settling module 130 into the pure gas refining module 140, in some embodiments, the powder spraying refining settling module 130 includes a powder spraying refining settling chamber 132 connected to both the powder spraying refining module 120 and the pure gas refining module 140, for settling the molten aluminum flowing from the powder spraying refining chamber 121. The housing structure 110 is provided with a first heat-conducting partition 111 and a first channel 115. The powder spraying refining module 120 and the powder spraying refining settling chamber 132 are separated by the first heat-conducting partition 111 and connected by the first channel 115. To maintain the temperature of the molten aluminum in the powder spraying refining settling chamber 132, in some embodiments, the powder spraying refining settling module 130 further includes a first immersion heater 131 disposed in the powder spraying refining settling chamber 132 for heating and maintaining the temperature of the molten aluminum in the powder spraying settling chamber 132. For embodiments with a powder spraying refining chamber 121, in some of these embodiments, such as Figure 2 As shown, the powder spraying refining settling module 130 includes a powder spraying refining settling chamber 132 connected to both the powder spraying refining chamber 121 and the pure gas refining module 140, for settling the molten aluminum flowing into the powder spraying refining chamber 121. The housing structure 110 is provided with a first heat-conducting partition 111 and a first channel 115. The powder spraying refining chamber 121 and the powder spraying settling chamber 132 are separated by the first heat-conducting partition 111 and connected by the first channel 115. Other embodiments follow the same principle and will not be described in detail.

[0052] This structural design, on the one hand, enhances the impurity interception effect through functional zoning and barrier design. The powder spraying refining settling chamber 132 and the powder spraying refining chamber 121 are separated by the first heat-conducting partition 111 and connected only by the first channel 115. This allows the aluminum liquid processed by the powder spraying refining module 120 to remain in the settling chamber for a sufficient period of time, allowing impurities such as inclusions and bubbles to float or sink and separate under gravity. On the other hand, the partition prevents large particles of unseparated impurities from directly entering the pure gas refining module 140, effectively reducing the impurity load in subsequent purification stages and improving the overall slag removal efficiency. On the other hand, the setting of the first immersion heater 131 solves the temperature problem during the aluminum liquid settling process. To address the issue of heat loss, the aluminum liquid is directly heated and kept warm within the powder spraying refining settling chamber 132. This maintains the optimal refining temperature of the aluminum liquid, preventing the refining agent from becoming less active and the impurity separation rate from slowing down due to temperature drops. It also reduces the impact of aluminum liquid temperature fluctuations on the subsequent pure gas refining module 140, ensuring the stability of the purification process. Furthermore, the first heat-conducting partition 111 serves both as a separator and a heat conductor. While blocking impurities, it can transfer the residual heat of the aluminum liquid in the powder spraying refining chamber 121 to the powder spraying refining settling chamber 132, helping to maintain the aluminum liquid temperature and reducing the energy consumption of the first immersion heater 131, which is conducive to achieving efficient energy utilization.

[0053] To better isolate heavier inclusions from entering the powder spraying and refining settling module 130 from the powder spraying and refining chamber 121, in some embodiments, the first channel 115 is a triangular channel, and in the direction of gravity, the bottom of the first heat-conducting partition 111 is at a predetermined distance from the first channel 115, that is, the first channel 115 is located above the bottom of the first heat-conducting partition 111, so that the heavier inclusions settle and remain in the powder spraying and refining chamber 121, and no longer enter the powder spraying and refining settling module 130 or its powder spraying and refining settling chamber 132.

[0054] This structural design, on the one hand, precisely isolates and intercepts heavier inclusions through the triangular channel shape and specific height layout. The streamlined structure of the triangular channel ensures stable flow of molten aluminum while slowing down the flow rate. Combined with the design of the first channel 115 located above the bottom of the first heat-conducting baffle 111, heavier inclusions in the molten aluminum in the powder refining chamber 121 are preferentially deposited to the bottom of the chamber under gravity, preventing them from entering the powder refining settling chamber 132 of the powder refining settling module 130 along with the molten aluminum. This effectively reduces the impurity base in subsequent settling and purification stages, improving overall slag removal accuracy. On the other hand… This design eliminates the need for additional filtration devices, achieving impurity separation solely through optimized channel structure and baffle height. This simplifies the internal structure of the degassing and slag removal purification chamber 100, reducing equipment manufacturing costs and maintenance difficulty. It also avoids production interruptions caused by filter component blockage, ensuring the continuity of the purification process. Furthermore, the early interception of heavier inclusions reduces the processing pressure on the powder refining settling chamber 132 and the subsequent pure gas refining module 140, allowing each module to focus more on the removal of hydrogen and light inclusions. This further improves purification efficiency and aluminum melt cleanliness, providing a more precise guarantee for meeting the high cleanliness requirements of different grades of aluminum melt.

[0055] To better remove impurity gases from molten aluminum, in some embodiments, the pure gas refining module 140 includes a pure gas refining chamber 141 and a refining rotor 142 disposed within the pure gas refining chamber 141. The pure gas refining chamber 141 is connected to both the powder spraying refining and settling module 130 and the powder spraying refining and settling module 130. The refining rotor 142 is used to spray pure inert gas in a rotating manner to refine the molten aluminum flowing in from the powder spraying refining and settling module 130. In some embodiments, the refining rotor 142 is used to spray pure inert gas in a rotating manner, forming a cluster of pure inert gas bubbles in the molten aluminum. To enhance the degassing effect, as an example, in the direction of gravity, the inlet height of the pure gas refining chamber 141 is higher than the outlet height. In some embodiments, the housing structure 110 is provided with a second heat-conducting partition 112 and a second channel 116. The powder spraying refining stationary module 130 and the pure gas refining chamber 141 are separated by the second heat-conducting partition 112 and connected by the second channel 116.

[0056] This structural design, on the one hand, enhances the degassing effect through the rotating jet mode of the refining rotor 142. By jetting pure inert gas in a rotating manner, it forms a dense and uniform cluster of bubbles in the molten aluminum within the pure gas refining chamber 141, significantly increasing the contact area between the gas and the molten aluminum. This allows impurities in the molten aluminum, especially hydrogen, to diffuse more easily into the bubbles and rise with them for discharge, effectively solving the problem of incomplete degassing in traditional static jet degassing and significantly improving the degassing efficiency of the molten aluminum. On the other hand, the high-level layout of the pure gas refining chamber 141, combined with the separation and connection between the second heat-conducting baffle 112 and the second channel 116, further enhances the degassing effect. The design ensures a stable flow of molten aluminum from the powder refining stationary module 130 to the pure gas refining chamber 141, while also extending the residence time of the molten aluminum in the pure gas refining chamber 141, providing sufficient time for the bubble clusters to fully capture impurity gases. At the same time, the second heat-conducting baffle 112 can prevent incompletely separated slag from entering the powder refining stationary module 130, avoiding interference from slag inclusions in the degassing process. Furthermore, the second heat-conducting baffle 112 can achieve heat conduction, transferring the residual heat of the molten aluminum in the powder refining stationary module 130 to the pure gas refining chamber 141, helping to maintain the optimal refining temperature of the molten aluminum and reducing additional heating energy consumption.

[0057] To minimize residual impurities, in some embodiments, the pure gas refining and settling module 150 includes a pure gas refining and settling chamber 151 connected to both the pure gas refining module 140 and the aluminum liquid outlet 119, for settling and outputting the aluminum liquid. The pure gas refining and settling module 150 also includes a second immersion heater 152 disposed in the pure gas refining and settling chamber 151 for heating and maintaining the temperature of the aluminum liquid in the pure gas refining and settling chamber 151. The housing structure 110 is provided with a third heat-conducting partition 113 and a third channel 117. The pure gas refining module 140 and the pure gas refining and settling chamber 151 are separated by the third heat-conducting partition 113 and connected by the third channel 117. In some embodiments, the third channel 117 is a triangular channel, and in the direction of gravity, the bottom of the third heat-conducting partition 113 is at a predetermined distance from the third channel 117.

[0058] This structural design, on the one hand, minimizes residual inclusions through multiple interception and settling processes. The pure gas refining settling chamber 151, as the final purification stage before aluminum molten output, allows the aluminum molten material processed by the pure gas refining module 140 to settle fully, allowing any remaining small inclusions to float or sink under gravity. Combined with the triangular channel shape of the third channel 117 and its placement above the bottom of the third heat-conducting partition 113, it intercepts heavier inclusions deposited in the pure gas refining module 140, preventing them from entering the pure gas refining settling chamber 151 with the aluminum molten material. This dual protection significantly reduces the residual inclusion content in the aluminum molten material, providing a high-purity aluminum melt for subsequent processing. On the other hand, the second immersion heater... The design of 152 solves the problem of temperature loss at the end of the aluminum liquid settling period. It directly heats and maintains the temperature in the pure gas refining settling chamber 151, which can maintain the fluidity and impurity separation activity of the aluminum liquid, avoid the slag agglomeration that is difficult to separate due to excessively low temperature, and ensure that the aluminum liquid meets the temperature requirements for subsequent processing when it flows out of the aluminum liquid outlet 119, reducing the secondary heating process and reducing energy consumption and production time costs. On the other hand, the third heat-conducting partition 113 has both separation and heat conduction functions. While blocking slag inclusions, it can conduct the residual heat of the aluminum liquid in the pure gas refining module 140 to the pure gas refining settling chamber 151 to help maintain the temperature, reduce the load on the second immersion heater 152, and achieve energy-efficient utilization.

[0059] The following will continue to combine Figures 1 to 5The example illustrates the degassing and slag removal purification box 100. In some embodiments, the degassing and slag removal purification box 100 may also be called a multi-functional degassing and slag removal purification box or a multi-functional degassing and slag removal purification system, including a box structure 110, a powder spraying refining module 120, a powder spraying refining settling module 130, a pure gas refining module 140, and a pure gas refining settling module 150, to solve the problems of dead zones and difficulty in standardizing process control in traditional aluminum molten furnace refining. Due to its simple structure, it is called a small molten pool; and because the aluminum liquid flows linearly, it is called an online small molten pool. The degassing and slag removal purification box 100, through its online small molten pool uniform refining design, ensures 100% coverage and thorough purification of the melt. Through its special structure and automated control, it ensures consistent purification effects, eliminates uncertainties caused by human operation, and can meet the stringent requirements of different grades for high-purity melts, providing a safe, efficient, and universally applicable new purification mode for the aluminum processing industry.

[0060] The degassing and slag removal purification box 100 is equipped with a powder spraying refining chamber 121, a powder spraying refining settling chamber 132, a pure gas refining chamber 141, and a pure gas refining settling chamber 151. As an example, the powder spraying refining chamber 121, the powder spraying refining settling chamber 132, the pure gas refining chamber 141, and the pure gas refining settling chamber 151 form a large, integrated structure. The interior is divided into areas of different sizes according to different functions, and the upper part is a top cover for overall sealing. This method of refining through a small molten pool achieves thorough and continuous purification of the aluminum molten material. Combined with online degassing equipment, it forms an optimized design for the degassing and slag removal process and equipment, breaking through the traditional in-furnace powder spraying refining method and meeting the purification requirements for high-quality aluminum molten material. This provides the aluminum processing industry with a safe, healthy, and efficient molten material purification mode.

[0061] The powder spraying refining chamber 121 is equipped with two powder spraying refining machines 123. Each powder spraying refining machine 123 is equipped with two high-temperature resistant ceramic powder spraying refining tubes, i.e., ceramic refining tubes 124. The ceramic refining tubes 124 are arranged at the bottom of the powder spraying refining chamber 121 and have appropriately sized small holes for air spraying and refining agent. A pressure switch is installed on the ceramic refining tubes 124 to control the flow of inert gas, preventing aluminum liquid from flowing back into the refining tube when the refining agent is added. As an example, in the direction of gravity, the aluminum inlet of the powder spraying refining chamber 121 is at a higher point, and the aluminum outlet is at a lower point, to create sufficient convection with the bubble clusters generated during powder spraying. As an example, a permanent magnet stirrer 122 is installed at the bottom of the powder spraying refining chamber 121. When the permanent magnet stirrer is activated during powder spraying refining, the aluminum liquid at the bottom of the chamber rotates horizontally under force, which helps the aluminum liquid and refining agent to mix and adsorb fully, effectively improving slag removal efficiency.

[0062] The powder spraying refining settling chamber 132 is equipped with a first immersion heater 131 for heating and maintaining the temperature of the molten aluminum, thus ensuring the temperature of the molten aluminum. Simultaneously, the powder spraying refining settling chamber 132 has a settling and buffering effect on the molten aluminum, helping heavier inclusions in the molten aluminum to precipitate. To better block impurities and improve the refining effect, as an example, the aluminum inlet of the powder spraying refining settling chamber 132 is located at a lower position on one side of the partition, while the aluminum outlet of the powder spraying refining settling chamber 132 is at a higher point, which is also the aluminum inlet of the pure gas refining chamber 141.

[0063] The powder spraying refining chamber 121 and the powder spraying refining settling chamber 132 are separated by a first thermally conductive partition 111 made of a refractory material with good thermal conductivity. The powder spraying refining chamber 121 is connected to the aluminum inlet of the powder spraying refining settling chamber 132 through a first channel 115, such as a triangular channel. The bottom of the first thermally conductive partition 111 is at a predetermined distance from the first channel 115, that is, the first channel 115 is at a predetermined height relative to the bottom of the first thermally conductive partition 111, i.e., the bottom of the powder spraying refining chamber 121. For example, the powder spraying refining chamber 121 is connected to the aluminum inlet of the powder spraying refining settling chamber 132 at a predetermined height with a triangular opening. The predetermined distance, i.e., a predetermined height, is 25cm to 35cm, or may be greater than 35cm. Maintaining a certain height between the aluminum liquid channel and the bottom, i.e., the predetermined distance, helps to precipitate and purify high-density inclusions in the powder spraying refining chamber 121, preventing them from entering the powder spraying refining settling chamber 132.

[0064] The pure gas refining chamber 141 is equipped with a rotating nozzle as a refining rotor 142, which is used for pure inert gas blowing to refine the aluminum liquid. As an example, the liquid inlet of the pure gas refining chamber 141 is at a high point, and the liquid outlet of the pure gas refining chamber 141 is at a relatively low point. By utilizing the process of the aluminum liquid flowing from high to low, it forms sufficient contact with the refining gas, which helps to complete the degassing and removal of lighter inclusions.

[0065] The pure gas refining settling chamber 151 is equipped with a second immersion heater 152 for heating and maintaining the temperature of the molten aluminum, ensuring the temperature of the molten aluminum. Simultaneously, the pure gas refining settling chamber 151 has a settling and buffering effect on the molten aluminum. As an example, the aluminum inlet of the pure gas refining settling chamber 151 is a triangular channel at a lower position on one side of the partition, while the aluminum outlet of the pure gas refining settling chamber 151 is at a higher point, which helps heavier inclusions in the molten aluminum to precipitate and be purified in the settling chamber.

[0066] The pure gas refining chamber 141 and the pure gas refining settling chamber 151 are separated by a refractory material with good thermal conductivity, namely a third heat-conducting partition 113. They are connected by a triangular opening at a suitable height at the bottom of the chamber. Maintaining a certain height between the aluminum liquid channel and the bottom helps to precipitate and purify high-density inclusions in the pure gas refining chamber 141.

[0067] This structural design, on the one hand, ensures uniform refining in a small molten pool, guaranteeing 100% melt coverage without any refining dead zones. This effectively overcomes the challenges of dead zones and standardized process control inherent in traditional furnace refining, achieving efficient degassing and slag removal for thorough purification. On the other hand, under the premise of comprehensive coverage and continuous purification of the aluminum melt, this design ensures consistent flux reaction effects, automated process control, and reduced uncertainties in human operation. Furthermore, it is suitable for the specific needs of different product grades for high-purity melts, possessing universality and providing the aluminum processing industry with a safe, healthy, efficient, and universally applicable new purification model. Moreover, through powder spraying refining and pure gas refining, combined with the synergistic effect of two settling chambers, impurities are comprehensively removed. The triangular channel design of the partitions in the settling and refining chambers, maintaining a predetermined distance from the bottom, facilitates the sedimentation of heavy inclusions, further improving the purity of the aluminum melt. Additionally, this aluminum melt flow path layout helps improve the standardization and consistency of the refining process and its purification effect.

[0068] The following will continue to combine Figures 1 to 5 The present invention provides an example of the practical application of the degassing and slag removal purification box 100. This embodiment can be used for, but is not limited to, the purification treatment of 6061 aluminum alloy melt.

[0069] The degassing and slag removal purification box 100 includes a box structure 110, a powder spraying refining module 120, a powder spraying refining settling module 130, a pure gas refining module 140, and a pure gas refining settling module 150. The box structure 110 can also be called a partition and channel module, providing partitions and channels for each functional module. The powder spraying refining module 120 is used for powder spraying refining of aluminum melt, achieving slag removal and preliminary degassing through the spraying of refining agents and inert gases. The powder spraying refining settling module 130 is used for aluminum melt settling, heating and heat preservation, and precipitation of heavier inclusions. The pure gas refining module 140 is used for pure inert gas refining to further remove hydrogen and light inclusions. The pure gas refining settling module 150 is used for final aluminum melt settling, heating and heat preservation, and precipitation of residual inclusions. The box structure 110 is used to connect the various chambers and control the flow path of the aluminum melt, promoting the separation of inclusions. The modules work together to achieve continuous and efficient purification of the aluminum melt, eliminate refining dead zones, and improve the consistency and standardization of purification effects.

[0070] The powder spraying refining module 120 includes a powder spraying refining chamber 121, a permanent magnet stirrer 122, a powder spraying refining machine 123, and a ceramic refining tube 124. The powder spraying refining chamber 121 serves as the main reaction zone for powder spraying refining, with the aluminum inlet at a higher point and the aluminum outlet at a lower point. It utilizes the gravity flow of molten aluminum and the convection formed by the bubble clusters to enhance the refining effect. Two powder spraying refining machines 123 are configured to transport refining agents and inert gases, enabling automated powder spraying operation. The ceramic refining tube 124, made of high-temperature resistant ceramic material, is located at the bottom of the powder spraying refining chamber 121 and has small holes for spraying refining agents and gases. A pressure switch is installed on the tube to control the gas flow and prevent molten aluminum backflow. The permanent magnet stirrer 122 is installed at the bottom of the powder spraying refining chamber 121 and is activated during refining, driving the molten aluminum to rotate horizontally, promoting thorough mixing of the refining agent and the melt, and improving slag removal efficiency.

[0071] The powder spraying refining settling module 130 includes a first immersion heater 131 and a powder spraying refining settling chamber 132. The powder spraying refining settling chamber 132 is used for aluminum liquid settling and buffering. The aluminum inlet is a lower channel on one side of the partition, and the aluminum outlet is a higher point, which helps heavier inclusions settle. The first immersion heater 131 is used for heating and maintaining the temperature of the aluminum liquid, ensuring stable aluminum melt temperature and preventing temperature fluctuations from affecting the purification effect.

[0072] The pure gas refining module 140 includes a pure gas refining chamber 141 and a refining rotor 142. The pure gas refining chamber 141 is used for refining with pure inert gas. The aluminum inlet is at a high point, and the aluminum outlet is at a relatively low point. The aluminum liquid flows from high to low, ensuring sufficient contact with the gas and enhancing the degassing effect. The refining rotor 142, also known as a rotating nozzle, is used to spray pure inert gas, generating a cluster of microbubbles to efficiently remove hydrogen and light oxide inclusions.

[0073] The pure gas refining and settling module 150 includes a pure gas refining and settling chamber 151 and a second immersion heater 152. The pure gas refining and settling chamber 151 is used for the final settling and buffering of the molten aluminum. The aluminum inlet is a triangular channel at a lower position on one side of the partition, and the aluminum outlet is at a higher point, promoting the precipitation of residual inclusions. The second immersion heater 152 is used for heating and maintaining the temperature of the molten aluminum, ensuring that the temperature of the molten aluminum meets the process requirements.

[0074] The box structure 110 includes heat-conducting partitions and related channels. The heat-conducting partitions include a first heat-conducting partition 111, a second heat-conducting partition 112, a third heat-conducting partition 113, and a fourth heat-conducting partition 114, made of refractory material with good thermal conductivity. They separate the powder spraying refining chamber 121 from the powder spraying refining settling chamber 132, the pure gas refining chamber 141 from the pure gas refining settling chamber 151, etc., ensuring heat transfer and temperature uniformity. The related channels include a first channel 115, a second channel 116, and a third channel 117. For example, a triangular channel located at an appropriate height of the heat-conducting partitions is used to connect the various chambers. When the molten aluminum passes through, it maintains a distance from the bottom, which helps high-density inclusions to precipitate in the chamber and improves the purity of the melt.

[0075] Specifically, the first heat-conducting partition 111 is disposed between the powder spraying refining chamber 121 and the powder spraying refining stationary chamber 132 and has a first channel 115; the second heat-conducting partition 112 is disposed between the powder spraying refining stationary chamber 132 and the pure gas refining chamber 141 and has a second channel 116; the third heat-conducting partition 113 is disposed between the pure gas refining chamber 141 and the pure gas refining stationary chamber 151 and has a third channel 117; in order to achieve a compact structural layout, the fourth heat-conducting partition 114 is disposed between the pure gas refining stationary chamber 151 and the powder spraying refining chamber 121; the fourth heat-conducting partition 114 can be integrally disposed with the second heat-conducting partition 112.

[0076] The working process of the degassing and slag removal purification box 100 in this embodiment is illustrated below.

[0077] System preparation and startup: After sealing the top cover of the purification chamber, start the control system and check the status of each module, including the gas pressure of the powder refining machine 123, the permanent magnet stirrer 122, the heater, and whether the rotary nozzle is operating normally. The aluminum melt flows from the upstream into the aluminum liquid inlet 118 and enters the aluminum inlet of the powder refining chamber 121.

[0078] Powder spraying refining and stirring: The molten aluminum enters the powder spraying refining chamber 121. The powder spraying refining machine 123 sprays refining agent and inert gas through the ceramic refining tube 124. At the same time, the permanent magnet stirrer 122 is started, driving the molten aluminum to rotate, so that the refining agent is evenly distributed and adsorbs the inclusions in the molten aluminum. After refining, the molten aluminum flows into the powder spraying refining settling chamber 132 through the first channel 115.

[0079] Settling and Sedimentation: In the powder spraying refining settling chamber 132, the first immersion heater 131 maintains the temperature of the molten aluminum. The powder spraying refining settling chamber 132 acts as a buffer for the flowing molten aluminum, and heavier inclusions settle to the bottom of the powder spraying refining settling chamber 132. The clean molten aluminum flows out from the aluminum outlet of the powder spraying refining settling chamber 132 and enters the pure gas refining chamber 141 through the second channel 116.

[0080] Pure gas refining: In the pure gas refining chamber 141, the refining rotor 142 sprays pure inert gas to form a cluster of bubbles, which fully contact the molten aluminum to remove hydrogen and light inclusions. The molten aluminum flows from high to low points to enhance the gas-liquid interaction.

[0081] Final settling and output: The molten aluminum enters the pure gas refining settling chamber 151 through the third channel 117, where it is settling again and kept warm by a heater, allowing residual inclusions to further settle. The purified molten aluminum is discharged from the aluminum outlet for subsequent casting or processing.

[0082] System shutdown and maintenance: After purification is complete, shut down the powder refining machine 123, maintain gas supply and heater, and open the top cover for cleaning and maintenance to ensure long-term stable operation of the degassing and slag removal purification box 100.

[0083] It should be noted that other embodiments of this application also include an implementable degassing and slag removal purification box formed by combining the technical features of the above embodiments.

[0084] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0085] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the patent protection scope of this application should be determined by the appended claims.

Claims

1. A degassing and slag removal purification box (100), characterized in that, It includes a box structure (110) and a powder refining module (120), as well as a powder refining stationary module (130), a pure gas refining module (140), and a pure gas refining stationary module (150) disposed in the box structure (110). The box structure (110) is provided with an aluminum liquid inlet (118) and an aluminum liquid outlet (119). The powder spraying refining module (120) is located in the box structure (110) and is connected to the aluminum liquid inlet (118) for conveying refining agent and inert gas to perform powder spraying refining on the aluminum liquid input through the aluminum liquid inlet (118); The powder spraying refining and settling module (130) is connected to the powder spraying refining module (120) and is used for settling the molten aluminum. The pure gas refining module (140) is connected to the powder spraying refining and settling module (130) and is used for pure inert gas refining; The pure gas refining and settling module (150) is connected to the pure gas refining module (140) and the aluminum liquid outlet (119) respectively, and is used for aluminum liquid settling and output.

2. The degassing and slag removal purification box (100) according to claim 1, characterized in that, The powder spraying refining module (120) includes a powder spraying refining chamber (121), a permanent magnet stirrer (122), a powder spraying refining machine (123), and a ceramic refining tube (124). The powder spraying refining chamber (121) is disposed in the box structure (110), the powder spraying refining machine (123) and the ceramic refining tube (124) are respectively disposed in the powder spraying refining chamber (121), the ceramic refining tube (124) is used to spray out the refining agent and the inert gas, and the powder spraying refining machine (123) performs powder spraying refining on the aluminum liquid in the powder spraying refining chamber (121); The permanent magnet stirrer (122) has a stirring section located in the powder spraying refining chamber (121) for stirring the molten aluminum in the powder spraying refining chamber (121).

3. The degassing and slag removal purification box (100) according to claim 2, characterized in that, The permanent magnet stirrer (122) is disposed outside the box structure (110), and the stirring part is located at the bottom of the powder spraying refining chamber (121) for driving the aluminum liquid to rotate horizontally; or, the permanent magnet stirrer (122) is disposed inside the box structure (110); or, the ceramic refining tube (124) is disposed at the bottom of the powder spraying refining chamber (121).

4. The degassing and slag removal purification box (100) according to claim 2, characterized in that, The powder spraying refining settling module (130) includes a powder spraying refining settling chamber (132) that is connected to the powder spraying refining chamber (121) and the pure gas refining module (140) respectively, for settling the aluminum liquid flowing from the powder spraying refining chamber (121). The box structure (110) is provided with a first heat-conducting partition (111) and a first channel (115). The powder spraying refining chamber (121) and the powder spraying refining stationary chamber (132) are separated by the first heat-conducting partition (111) and connected by the first channel (115).

5. The degassing and slag removal purification box (100) according to claim 4, characterized in that, The first channel (115) is a triangular channel, and in the direction of gravity, the bottom of the first heat-conducting partition (111) is at a predetermined distance from the first channel (115); or, The powder spraying refining settling module (130) also includes a first immersion heater (131) disposed in the powder spraying refining settling chamber (132) for heating and heat preservation of the aluminum liquid in the powder spraying refining settling chamber (132).

6. The degassing and slag removal purification box (100) according to claim 1, characterized in that, The pure gas refining module (140) includes a pure gas refining chamber (141) and a refining rotor (142) disposed in the pure gas refining chamber (141). The pure gas refining chamber (141) is connected to the powder spraying refining stationary module (130) and the powder spraying refining stationary module (130) respectively. The refining rotor (142) is used to spray pure inert gas to refine the molten aluminum flowing in from the powder spraying refining stationary module (130).

7. The degassing and slag removal purification box (100) according to claim 6, characterized in that, The box structure (110) is provided with a second heat-conducting partition (112) and a second channel (116). The powder spraying refining stationary module (130) and the pure gas refining chamber (141) are separated by the second heat-conducting partition (112) and connected by the second channel (116); or, The refining rotor (142) is used to spray pure inert gas in a rotating manner to form a group of pure inert gas bubbles in the molten aluminum.

8. The degassing and slag removal purification box (100) according to claim 1, characterized in that, The pure gas refining and settling module (150) includes a pure gas refining and settling chamber (151) that is connected to the pure gas refining module (140) and the aluminum liquid outlet (119) respectively, for aluminum liquid settling and output; The pure gas refining and settling module (150) also includes a second immersion heater (152) disposed in the pure gas refining and settling chamber (151) for heating and heat preservation of the aluminum liquid in the pure gas refining and settling chamber (151); The box structure (110) is provided with a third heat-conducting partition (113) and a third channel (117). The pure gas refining module (140) and the pure gas refining stationary cavity (151) are separated by the third heat-conducting partition (113) and connected by the third channel (117).

9. The degassing and slag removal purification box (100) according to claim 8, characterized in that, The third channel (117) is a triangular channel, and in the direction of gravity, the bottom of the third heat-conducting partition (113) is at a predetermined distance from the third channel (117).

10. The degassing and slag removal purification box (100) according to any one of claims 1 to 9, characterized in that, In the direction of gravity, the aluminum liquid inlet (118) is higher than the aluminum liquid outlet (119).

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