Method and system for removing iron element in secondary aluminum based on centrifugal casting method

Abstract

The invention belongs to but not limited to the technical field of metal impurity removal, and particularly relates to a method and system for removing iron elements in secondary aluminum based on a centrifugal casting method.The method comprises the steps that S1, raw materials are prepared, specifically, secondary aluminum raw materials are collected, classified and treated, impurities and oil stains in the secondary aluminum raw materials are removed, and the quality of the raw materials is ensured; s2, preheating treatment is conducted, specifically, the secondary aluminum raw material is heated to a certain temperature to reach a proper casting temperature; s3, centrifugal casting is conducted, specifically, centrifugal casting equipment is adopted, the preheated secondary aluminum raw material is injected into a rotating mold, and iron elements in molten aluminum are gathered towards the wall face of the mold under the action of centrifugal force; s4, separation and collection: after the molten aluminum is cooled and solidified, the casting is taken out of the mold, an iron element enrichment layer on the surface of the casting is removed through a mechanical or chemical method, and secondary aluminum with the low iron content is obtained; and S5, follow-up treatment is conducted, specifically, the obtained low-iron-content secondary aluminum is further treated, including refining and alloying, so that different application requirements are met.

Description

Technical Field

[0001] The present invention belongs to but is not limited to the technical field of metal impurity removal, and in particular relates to a method and system for removing iron elements from recycled aluminum based on a centrifugal casting method. Background Art

[0002] As an important secondary resource, the recycling of recycled aluminum is of great significance for saving resources and protecting the environment. However, recycled aluminum often contains a certain amount of iron, which not only affects the performance of recycled aluminum, but also limits its application range. Therefore, it is particularly important to develop a technology that effectively removes iron from recycled aluminum.

[0003] Patent (CN103572080A) discloses a method for removing iron from aluminum-silicon recycled aluminum, which can remove iron, refine grains and improve the morphology of iron-rich phases. Al-B and Al-Mn master alloys are used as iron removers. Mn and B elements react with Al, Si, Fe, etc. in aluminum-silicon recycled aluminum to form Fe-B, Al-Si-Mn-Fe and other particles with high melting points and high density. A part of the particles is removed by natural sedimentation, and the other part is assisted by mechanical vibration during the casting process to achieve grain refinement and improve the elongation of aluminum-silicon recycled aluminum. Patent (CN104674010A) discloses a method for removing harmful elements in the process of waste aluminum regeneration. The recycled waste aluminum is graded and sorted and preliminarily modified, and then put into a furnace for low-temperature smelting treatment. In the process, an electromagnetic iron removal stirring device is used for stirring, and magnetic adsorption is used to remove iron. Then, a decontamination agent is added. After the decontamination is completed, the aluminum liquid is skimmed to obtain a qualified pure aluminum solution. Patent (CN1354267A) discloses an electromagnetic separation method for removing iron from aluminum silicon alloy. First, manganese is added to the eutectic aluminum silicon alloy to make the iron element fully precipitate in the melt in the form of a primary iron-rich phase. Under the action of electromagnetic force, the primary iron-rich phase is separated from the melt by "expelling" it, and enriched on the filter wall to be removed, thereby reducing the iron content in the aluminum silicon alloy. However, this treatment method still has major defects. First, this method must alloy the melt to make the primary iron-rich phase fully precipitate from the melt, and the addition of alloying elements is bound to cause unavoidable contamination to the melt. Second, the treatment method disclosed in the invention uses a steady-current magnetic field plus a direct current or a high-frequency magnetic field, which is very likely to cause melt instability and low separation efficiency. Third, this method is to make the alloy melt flow through the induced magnetic field pipeline during the pouring process, rather than passing the current directly through the melt. The present invention directly connects the pulse current to the alloy melt, and the high-speed electron flow directly acts on the Al element and Fe element in the melt, rather than the iron-rich phase in the melt. The purpose of purifying the recycled aluminum melt is achieved by utilizing the difference in the migration directions of the Al element and the Fe element under the action of the pulse current. The above-mentioned separation methods have their own advantages and disadvantages. The common problems are complicated operation, long time cycle, low efficiency, and the need to add intermediate elements to the melt as iron removers, which will further pollute the aluminum alloy melt. With the continuous development of the recycled aluminum industry and the improvement of the quality requirements for high-performance aluminum alloys, the restrictions on the impurity iron content in aluminum alloys are becoming more and more stringent, and it is urgent to develop new iron removal technologies.

[0004] In view of the above analysis, the technical problems that need to be solved urgently in the prior art are:

[0005] 1. The iron element is unevenly distributed in the recycled aluminum, resulting in poor removal effect;

[0006] 2. Traditional removal methods (such as chemical method, electrolysis method, etc.) have high requirements on equipment, complex operation, and are prone to secondary pollution;

[0007] 3. During the centrifugal casting process, how to ensure the effective separation of iron and aluminum and prevent iron from mixing into the aluminum liquid again is a technical difficulty. Summary of the invention

[0008] In view of the problems existing in the prior art, the present invention provides a method and system for removing iron elements in recycled aluminum based on a centrifugal casting method.

[0009] The present invention is achieved by a method for removing iron from recycled aluminum based on a centrifugal casting method, comprising:

[0010] S1, raw material preparation: collect and classify recycled aluminum raw materials, remove impurities and oil stains therein, and ensure the quality of the raw materials. The raw material quality control standard is that the impurity content does not exceed 0.5%, and the oil stain content does not exceed 0.3%.

[0011] S2, preheating treatment: heat the recycled aluminum raw material to 650℃ to 700℃ to reach a suitable casting temperature.

[0012] S3, centrifugal casting: using centrifugal casting equipment, the preheated recycled aluminum raw material is injected into a mold with a rotation speed of 800 to 1000 rpm. the iron element in the aluminum liquid is gathered to the mold wall through the action of centrifugal force. the casting time is controlled to 5 to 10 minutes to ensure that the iron element fully migrates to the mold wall.

[0013] S4, separation and collection: After the aluminum liquid cools and solidifies, the casting is taken out of the mold; the iron-enriched layer on the surface of the casting is removed by mechanical methods (such as turning and planing), and the thickness of the iron-enriched layer is 2 to 5 mm, to obtain recycled aluminum with a low iron content, and its iron content is reduced to below 0.1%.

[0014] S5, subsequent processing: the obtained low-iron content recycled aluminum is further processed, such as refining, alloying, etc., to meet different application requirements; the refining temperature is controlled between 700℃ and 750℃, the refining time is 30 to 60 minutes, and the refining agent used is a mixture of aluminum chloride and sodium chloride in a ratio of 1:1.

[0015] Furthermore, the specific parameters include:

[0016] Raw material preparation: impurity content ≤ 0.5%, oil content ≤ 0.3%.

[0017] Preheating temperature: 650℃ to 700℃.

[0018] Centrifugal casting: rotation speed 800 to 1000 rpm, casting time 5 to 10 minutes.

[0019] Thickness of iron-enriched layer: 2 to 5 mm.

[0020] Low Iron Recycled Aluminum: The iron content is reduced to below 0.1%.

[0021] Refining temperature: 700℃ to 750℃.

[0022] Refining time: 30 to 60 minutes.

[0023] Refining agent: A mixture of aluminum chloride and sodium chloride, in a ratio of 1:1.

[0024] Further, raw material preparation specifically includes:

[0025] S101. Collection: Collect recycled aluminum raw materials from various channels (such as scrapped cars, construction waste, etc.).

[0026] S102. Classification: Preliminary classification of raw materials according to their shape, size and composition for subsequent processing.

[0027] S103. Cleaning: Use clean water or detergent to remove oil, dust and other impurities on the surface of the raw materials.

[0028] S104. Crushing: For larger raw material blocks, use a crusher to crush them for subsequent heating and melting.

[0029] S105. Screening: Use the screen to remove non-metallic impurities (such as plastic, rubber, etc.) in the crushed raw materials.

[0030] Further, the preheating treatment specifically includes:

[0031] S201. Heating equipment: Use an aluminum melting furnace or similar heating equipment to heat the recycled aluminum raw materials.

[0032] S202. Temperature control: Ensure that the raw materials are heated to a suitable casting temperature, usually 660°C (near the melting point of aluminum), through temperature sensors and controllers.

[0033] S203. Melting: During the heating process, the raw materials gradually melt to form molten aluminum.

[0034] Further, centrifugal casting specifically includes:

[0035] S301. Centrifugal casting equipment: Select a suitable centrifugal casting machine to ensure that the equipment can operate stably and generate sufficient centrifugal force.

[0036] S302. Mould installation: Install the mould on the rotating shaft of the centrifugal casting machine and ensure the sealing and stability of the mould.

[0037] S303. Aluminum liquid injection: When the aluminum liquid temperature reaches the requirement, it is injected into the rotating mold through the pouring system.

[0038] S304. Centrifugal action: The centrifugal casting machine starts to rotate, and the centrifugal force generated causes the iron elements in the aluminum liquid to gather on the mold wall.

[0039] S305. Cooling: The aluminum liquid gradually cools and solidifies in the mold to form a casting.

[0040] Furthermore, separation and collection specifically include:

[0041] S401. Casting removal: After the casting is completely cooled, remove it from the mold.

[0042] S402. Surface cleaning: Use mechanical methods (such as grinding wheel grinding, sand blasting, etc.) or chemical methods (such as pickling) to remove the iron-enriched layer on the surface of the casting.

[0043] S403. Quality inspection: Detect the iron content in the castings through chemical analysis or spectral analysis to ensure that the requirements are met.

[0044] S404. Collection: Collect qualified low-iron recycled aluminum for subsequent processing.

[0045] Further, the subsequent processing specifically includes:

[0046] S501. Refining: If the iron content in the casting is still high, further refining treatment can be carried out, such as adding refining agents, stirring, etc.

[0047] S502. Alloying: According to application requirements, other metal elements (such as copper, zinc, etc.) can be added to the recycled aluminum for alloying treatment to improve its performance.

[0048] S503. Forming: Processing recycled aluminum into required shapes and sizes, such as plates, bars, etc.

[0049] S504. Inspection and packaging: Carry out quality inspection on finished products to ensure that they meet relevant standards and requirements, and then package and store them.

[0050] Another object of the present invention is to provide a system for removing iron from recycled aluminum based on a centrifugal casting method, which realizes the method for removing iron from recycled aluminum based on a centrifugal casting method, comprising:

[0051] Raw material preparation module: collects and sorts recycled aluminum raw materials, removes impurities and oil stains, and ensures raw material quality;

[0052] Preheating treatment module: heats the recycled aluminum raw material to a certain temperature to make it reach a suitable casting temperature;

[0053] Centrifugal casting module: Using centrifugal casting equipment, the preheated recycled aluminum raw material is injected into the rotating mold, and the iron element in the aluminum liquid is gathered to the mold wall through the action of centrifugal force;

[0054] Separation and collection module: After the aluminum liquid cools and solidifies, the casting is taken out of the mold, and the iron-enriched layer on the surface of the casting is removed by mechanical or chemical methods to obtain recycled aluminum with low iron content;

[0055] Subsequent processing module: The low-iron recycled aluminum is further processed, such as refining and alloying, to meet different application requirements.

[0056] Another object of the present invention is to provide a computer device, which includes a memory and a processor, wherein the memory stores a computer program, and when the computer program is executed by the processor, the processor executes the steps of the method for removing iron elements from recycled aluminum based on centrifugal casting.

[0057] Another object of the present invention is to provide a computer-readable storage medium storing a computer program. When the computer program is executed by a processor, the processor executes the steps of the method for removing iron elements from recycled aluminum based on centrifugal casting.

[0058] Another object of the present invention is to provide an information data processing terminal, which includes the iron removal system in recycled aluminum based on centrifugal casting.

[0059] In combination with the above technical solutions and the technical problems solved, the advantages and positive effects of the technical solutions to be protected by the present invention are as follows:

[0060] First, the present invention can effectively remove the iron element in the recycled aluminum: through the centrifugal casting method, the iron element in the aluminum liquid can be gathered on the mold wall, thereby achieving effective separation of the iron element and aluminum;

[0061] Improve the performance of recycled aluminum: After removing the iron element, the purity of recycled aluminum is improved, and its mechanical properties, corrosion resistance and other properties are also improved accordingly;

[0062] Simplified operation process: Compared with traditional removal methods, centrifugal casting does not require complicated equipment and operation process, thus reducing production costs;

[0063] Environmental protection and energy saving: The centrifugal casting method does not require the use of chemical reagents, which reduces pollution to the environment; at the same time, it reduces energy consumption by increasing the utilization rate of recycled aluminum.

[0064] The present invention uses centrifugal force to make the iron element in the aluminum liquid gather on the mold wall, thereby realizing effective separation of the iron element and aluminum. The method is simple to operate, low in cost, environmentally friendly and energy-saving, and has broad application prospects. In practical applications, the technical solution can be appropriately adjusted and optimized according to specific needs to improve the removal effect and product quality.

[0065] Second, the present invention solves the problems of high iron content, low removal efficiency and complex process in the prior art of recycled aluminum by refining and optimizing the method for removing iron from recycled aluminum based on centrifugal casting. First, by strictly classifying and preheating the recycled aluminum raw materials, the purity of the raw materials and the appropriate casting temperature are ensured, and the interference of impurities in the casting process is reduced, thereby improving the casting quality and the effect of iron removal. Specifically, the impurity content of the raw materials is controlled to be no more than 0.5%, the oil content is controlled to be no more than 0.3%, and the preheating temperature is controlled between 650°C and 700°C.

[0066] By optimizing centrifugal casting parameters, such as rotation speed and casting time, the removal efficiency of iron elements has been significantly improved. Using centrifugal casting equipment with a rotation speed of 800 to 1000 rpm and controlling the casting time to 5 to 10 minutes, the centrifugal force is effectively used to fully migrate the iron elements to the mold wall. Through this optimization, the iron elements can be more concentrated on the surface of the casting to form an enriched layer, making the subsequent mechanical separation more convenient and efficient.

[0067] The iron-enriched layer on the surface of the casting is removed by mechanical methods (such as turning and planing), which effectively reduces the iron content in the recycled aluminum. The thickness of the iron-enriched layer is controlled at 2 to 5 mm, ensuring the uniformity and thoroughness of the removal layer. Ultimately, the iron content of the recycled aluminum obtained can be reduced to less than 0.1%, greatly improving the purity and quality of the recycled aluminum and meeting the requirements of high-quality aluminum alloy manufacturing.

[0068] The present invention achieves efficient removal of iron in recycled aluminum and significant improvement of recycled aluminum quality through systematic process optimization. This not only simplifies the process flow and improves the removal efficiency, but also significantly reduces production costs and energy consumption, and has high industrial application value and market promotion prospects. Compared with the prior art, the present invention has made significant technical progress in the field of iron removal in recycled aluminum, solved long-standing technical problems, and provided reliable technical support for the efficient utilization and sustainable development of recycled aluminum. BRIEF DESCRIPTION OF THE DRAWINGS

[0069] Figure 1 This is a flow chart of a method for removing iron from recycled aluminum based on a centrifugal casting method provided by an embodiment of the present invention;

[0070] Figure 2 is a schematic diagram of raw material preparation provided by an embodiment of the present invention;

[0071] Figure 3 is a schematic diagram of a preheating treatment provided by an embodiment of the present invention;

[0072] Figure 4 is a schematic diagram of centrifugal casting provided by an embodiment of the present invention;

[0073] Figure 5 is a schematic diagram of separation and collection provided by an embodiment of the present invention;

[0074] Figure 6 is a schematic diagram of subsequent processing provided by an embodiment of the present invention;

[0075] Figure 7 The changing trend of the process effect of iron removal in recycled aluminum is shown;

[0076] Figure 8 It is an architecture diagram provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0077] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0078] like Figure 1 As shown, the method for removing iron from recycled aluminum based on centrifugal casting provided by an embodiment of the present invention comprises:

[0079] S1, raw material preparation: collect and classify recycled aluminum raw materials, remove impurities and oil stains therein, and ensure the quality of the raw materials. The raw material quality control standard is that the impurity content does not exceed 0.5%, and the oil stain content does not exceed 0.3%.

[0080] S2, preheating treatment: heat the recycled aluminum raw material to 650℃ to 700℃ to reach a suitable casting temperature.

[0081] S3, centrifugal casting: using centrifugal casting equipment, the preheated recycled aluminum raw material is injected into a mold with a rotation speed of 800 to 1000 rpm. the iron element in the aluminum liquid is gathered to the mold wall through the action of centrifugal force. the casting time is controlled to 5 to 10 minutes to ensure that the iron element fully migrates to the mold wall.

[0082] S4, separation and collection: After the aluminum liquid cools and solidifies, the casting is taken out of the mold; the iron-enriched layer on the surface of the casting is removed by mechanical methods (such as turning and planing), and the thickness of the iron-enriched layer is 2 to 5 mm, to obtain recycled aluminum with a low iron content, and its iron content is reduced to below 0.1%.

[0083] S5, subsequent processing: the obtained low-iron content recycled aluminum is further processed, such as refining, alloying, etc., to meet different application requirements; the refining temperature is controlled between 700℃ and 750℃, the refining time is 30 to 60 minutes, and the refining agent used is a mixture of aluminum chloride and sodium chloride in a ratio of 1:1.

[0084] Furthermore, the specific parameters include:

[0085] Raw material preparation: impurity content ≤ 0.5%, oil content ≤ 0.3%.

[0086] Preheating temperature: 650℃ to 700℃.

[0087] Centrifugal casting: rotation speed 800 to 1000 rpm, casting time 5 to 10 minutes.

[0088] Thickness of iron-enriched layer: 2 to 5 mm.

[0089] Low Iron Recycled Aluminum: The iron content is reduced to below 0.1%.

[0090] Refining temperature: 700℃ to 750℃.

[0091] Refining time: 30 to 60 minutes.

[0092] Refining agent: A mixture of aluminum chloride and sodium chloride, in a ratio of 1:1.

[0093] like Figure 2 As shown, raw material preparation specifically includes:

[0094] S101. Collection: Collect recycled aluminum raw materials from various channels (such as scrapped cars, construction waste, etc.).

[0095] S102. Classification: Preliminary classification of raw materials according to their shape, size and composition for subsequent processing.

[0096] S103. Cleaning: Use clean water or detergent to remove oil, dust and other impurities on the surface of the raw materials.

[0097] S104. Crushing: For larger raw material blocks, use a crusher to crush them for subsequent heating and melting.

[0098] S105. Screening: Use the screen to remove non-metallic impurities (such as plastic, rubber, etc.) in the crushed raw materials.

[0099] like Figure 3 As shown, the preheating treatment specifically includes:

[0100] S201. Heating equipment: Use an aluminum melting furnace or similar heating equipment to heat the recycled aluminum raw materials.

[0101] S202. Temperature control: Ensure that the raw materials are heated to a suitable casting temperature, usually 660°C (near the melting point of aluminum), through temperature sensors and controllers.

[0102] S203. Melting: During the heating process, the raw materials gradually melt to form molten aluminum.

[0103] like Figure 4 As shown, centrifugal casting specifically includes:

[0104] S301. Centrifugal casting equipment: Select a suitable centrifugal casting machine to ensure that the equipment can operate stably and generate sufficient centrifugal force.

[0105] S302. Mould installation: Install the mould on the rotating shaft of the centrifugal casting machine and ensure the sealing and stability of the mould.

[0106] S303. Aluminum liquid injection: When the aluminum liquid temperature reaches the requirement, it is injected into the rotating mold through the pouring system.

[0107] S304. Centrifugal action: The centrifugal casting machine starts to rotate, and the centrifugal force generated causes the iron elements in the aluminum liquid to gather on the mold wall.

[0108] S305. Cooling: The aluminum liquid gradually cools and solidifies in the mold to form a casting.

[0109] like Figure 5 As shown, separation and collection specifically include:

[0110] S401. Casting removal: After the casting is completely cooled, remove it from the mold.

[0111] S402. Surface cleaning: Use mechanical methods (such as grinding wheel grinding, sand blasting, etc.) or chemical methods (such as pickling) to remove the iron-enriched layer on the surface of the casting.

[0112] S403. Quality inspection: Detect the iron content in the castings through chemical analysis or spectral analysis to ensure that the requirements are met.

[0113] S404. Collection: Collect qualified low-iron recycled aluminum for subsequent processing.

[0114] like Figure 6 As shown, the subsequent processing specifically includes:

[0115] S501. Refining: If the iron content in the casting is still high, further refining treatment can be carried out, such as adding refining agents, stirring, etc.

[0116] S502. Alloying: According to application requirements, other metal elements (such as copper, zinc, etc.) can be added to the recycled aluminum for alloying treatment to improve its performance.

[0117] S503. Forming: Processing recycled aluminum into required shapes and sizes, such as plates, bars, etc.

[0118] S504. Inspection and packaging: Carry out quality inspection on finished products to ensure that they meet relevant standards and requirements, and then package and store them.

[0119] like Figure 7 As shown, the system for removing iron from recycled aluminum based on centrifugal casting provided by an embodiment of the present invention comprises:

[0120] Raw material preparation module: collects and sorts recycled aluminum raw materials, removes impurities and oil stains, and ensures raw material quality;

[0121] Preheating treatment module: heats the recycled aluminum raw material to a certain temperature to make it reach a suitable casting temperature;

[0122] Centrifugal casting module: Using centrifugal casting equipment, the preheated recycled aluminum raw material is injected into the rotating mold, and the iron element in the aluminum liquid is gathered to the mold wall through the action of centrifugal force;

[0123] Separation and collection module: After the aluminum liquid cools and solidifies, the casting is taken out of the mold, and the iron-enriched layer on the surface of the casting is removed by mechanical or chemical methods to obtain recycled aluminum with low iron content;

[0124] Subsequent processing module: The low-iron recycled aluminum is further processed, such as refining and alloying, to meet different application requirements.

[0125] Example 1: Application of high plasticity aluminum alloy in automobile manufacturing

[0126] background:

[0127] In the automotive industry, aluminum alloys are widely used in the manufacture of vehicle body structures and components due to their lightweight and excellent mechanical properties. By using high-plastic aluminum alloys, the weight of the vehicle body can be significantly reduced, and fuel efficiency and vehicle performance can be improved.

[0128] Implementation steps

[0129] 1. Material selection and preparation

[0130] Selection of raw materials: Recycled aluminum waste is used as raw material, and aluminum alloy materials with high plasticity and excellent mechanical properties are prepared through pretreatment, smelting purification, alloy composition adjustment, casting and heat treatment.

[0131] 2. Parts manufacturing

[0132] Extrusion and rolling: Through extrusion and rolling processes, the prepared high-plasticity aluminum alloy materials are processed into automotive structural parts and components.

[0133] Stamping: Utilizing the excellent plasticity of high-plasticity aluminum alloy, automobile body panels and parts of complex shapes are manufactured through stamping process.

[0134] 3. Assembly and testing

[0135] Welding and assembly: Welding and assembling aluminum alloy parts into body frames and other structural parts.

[0136] Performance testing: The manufactured aluminum alloy parts are tested for mechanical properties, corrosion resistance, fatigue life, etc. to ensure that they meet the standards and requirements of automobile manufacturing.

[0137] Implementation Effect

[0138] Weight reduction and efficiency improvement: After using high-plasticity aluminum alloy materials, the overall weight of the car is reduced, fuel efficiency is improved, and vehicle performance is enhanced.

[0139] Environmental protection and energy saving: The use of recycled aluminum reduces dependence on original aluminum resources, reduces production costs and energy consumption, and meets environmental protection requirements.

[0140] Example 2: Application of high plasticity aluminum alloy in building curtain wall

[0141] background

[0142] In modern buildings, curtain wall systems not only serve as exterior wall decoration, but also have structural support and energy-saving and thermal insulation functions. High-plasticity aluminum alloy has become an important material for building curtain walls due to its advantages such as light weight, corrosion resistance and easy processing.

[0143] Implementation steps

[0144] 1. Material Preparation

[0145] Selection of raw materials: Recycled aluminum waste is used to prepare high-plasticity aluminum alloy materials through pretreatment, smelting purification, alloy composition adjustment, casting and heat treatment.

[0146] 2. Curtain wall component manufacturing

[0147] Profile extrusion: Use the extrusion process to process high-plasticity aluminum alloy materials into curtain wall profiles.

[0148] Plate processing: Through the rolling process, high-plasticity aluminum alloy materials are processed into curtain wall plates.

[0149] 3. Curtain wall system installation

[0150] Structural design: Design the structure and connection method of the curtain wall system according to the architectural design requirements.

[0151] On-site installation: The extruded profiles and panels are transported to the construction site for on-site assembly and installation to ensure the stability and aesthetics of the curtain wall system.

[0152] 4. Inspection and maintenance

[0153] Performance testing: The installed curtain wall system is tested for wind pressure, water tightness, air tightness and thermal insulation performance to ensure that it complies with building regulations.

[0154] Daily maintenance: Clean and inspect the curtain wall system regularly to ensure its long-term safety and aesthetics.

[0155] Implementation Effect

[0156] Beautiful and durable: High plasticity aluminum alloy material gives the curtain wall system a beautiful appearance and lasting durability.

[0157] Lightweight and high strength: Aluminum alloy materials reduce the weight of the curtain wall system and improve the overall safety of the building.

[0158] Environmental protection and energy saving: The use of recycled aluminum materials reduces environmental load and energy consumption, meeting the requirements of green buildings.

[0159] Through the above two specific application embodiments, it can be seen that the application of high-plasticity aluminum alloy in automobile manufacturing and building curtain walls not only improves the performance and quality of the products, but also has significant environmental and economic benefits, reflecting the broad application prospects and technical advantages of the present invention.

[0160] An application embodiment of the present invention provides a computer device, which includes a memory and a processor. The memory stores a computer program. When the computer program is executed by the processor, the processor executes the steps of a method for removing iron elements from recycled aluminum based on a centrifugal casting method.

[0161] An application embodiment of the present invention provides a computer-readable storage medium storing a computer program. When the computer program is executed by a processor, the processor executes the steps of a method for removing iron elements from recycled aluminum based on a centrifugal casting method.

[0162] An application embodiment of the present invention provides an information data processing terminal, which includes a system for removing iron elements from recycled aluminum based on a centrifugal casting method.

[0163] Figure 7 The changing trend of the process effect of iron removal in recycled aluminum is shown. It is mainly divided into two parts:

[0164] 1. Impurity level (blue line):

[0165] The horizontal axis represents the process steps: raw material preparation, preheat treatment, centrifugal casting, separation and collection, and subsequent processing.

[0166] The vertical axis represents the impurity level (%), which decreases stepwise from 5% to 0.1%.

[0167] 2. Removal efficiency (red line, dotted line):

[0168] The horizontal axis also represents the process steps.

[0169] The vertical axis represents the removal efficiency (%), which gradually increases from 50% to 95%.

[0170] Should Figure 7 It vividly demonstrates that through various process steps, the removal effect of iron in recycled aluminum is gradually enhanced, ultimately significantly reducing the impurity level and improving the removal efficiency.

[0171] It should be noted that the embodiments of the present invention can be implemented by hardware, software, or a combination of software and hardware. The hardware part can be implemented using dedicated logic; the software part can be stored in a memory and executed by an appropriate instruction execution system, such as a microprocessor or dedicated design hardware. It can be understood by a person of ordinary skill in the art that the above-mentioned devices and methods can be implemented using computer executable instructions and / or contained in a processor control code, such as a carrier medium such as a disk, CD or DVD-ROM, a programmable memory such as a read-only memory (firmware), or a data carrier such as an optical or electronic signal carrier. Such code is provided on the carrier medium. The device and its modules of the present invention can be implemented by hardware circuits such as very large-scale integrated circuits or gate arrays, semiconductors such as logic chips, transistors, etc., or programmable hardware devices such as field programmable gate arrays, programmable logic devices, etc., can also be implemented by software executed by various types of processors, and can also be implemented by a combination of the above-mentioned hardware circuits and software, such as firmware.

[0172] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any modifications, equivalent substitutions and improvements made by any technician familiar with the technical field within the technical scope disclosed by the present invention and within the spirit and principle of the present invention should be covered by the protection scope of the present invention.

Claims

1. A method for removing iron from recycled aluminum based on centrifugal casting, characterized in that: include: S1, raw material preparation: collect and classify recycled aluminum raw materials, remove impurities and oil stains therein, and ensure the quality of the raw materials. The raw material quality control standard is that the impurity content does not exceed 0.5%, and the oil stain content does not exceed 0.3%; S2, preheating treatment: heating the recycled aluminum raw material to 650°C to 700°C to reach a suitable casting temperature; S3, centrifugal casting: using centrifugal casting equipment, the preheated recycled aluminum raw material is injected into a mold with a rotation speed of 800 to 1000 rpm, and the iron element in the aluminum liquid is gathered to the mold wall by the centrifugal force; the casting time is controlled to be 5 to 10 minutes to ensure that the iron element fully migrates to the mold wall; S4, separation and collection: after the aluminum liquid cools and solidifies, the casting is taken out of the mold; the iron-enriched layer on the surface of the casting is removed by mechanical methods, the thickness of the iron-enriched layer is 2 to 5 mm, and low-iron recycled aluminum is obtained, and the iron content is reduced to less than 0.1%; S5, subsequent processing: the obtained low-iron recycled aluminum is further processed, including refining, alloying, etc., to meet different application requirements; the refining temperature is controlled between 700°C and 750°C, the refining time is 30 to 60 minutes, and the refining agent used is a mixture of aluminum chloride and sodium chloride in a ratio of 1:

1.

2. The method for removing iron from recycled aluminum based on centrifugal casting as claimed in claim 1, characterized in that: The specific parameters include: Raw material preparation: impurity content ≤ 0.5%, oil content ≤ 0.3%; Preheating temperature: 650℃ to 700℃; Centrifugal casting: rotation speed 800 to 1000 rpm, casting time 5 to 10 minutes; Thickness of iron-enriched layer: 2 to 5 mm; Low iron content recycled aluminum: iron content is reduced to less than 0.1%; Refining temperature: 700℃ to 750℃; Refining time: 30 to 60 minutes; Refining agent: A mixture of aluminum chloride and sodium chloride, in a ratio of 1:

1.

3. The method for removing iron from recycled aluminum based on centrifugal casting as claimed in claim 1, characterized in that: Raw material preparation specifically includes: S101. Collection: Collect recycled aluminum raw materials from various channels; S102. Classification: Preliminary classification of raw materials according to their shape, size and composition for subsequent processing; S103. Cleaning: Use clean water or detergent to remove oil, dust and impurities on the surface of the raw materials; S104. Crushing: For larger raw material blocks, use a crusher to crush them for subsequent heating and melting; S105. Screening: Remove non-metallic impurities from the crushed raw materials through a screen.

4. The method for removing iron from recycled aluminum based on centrifugal casting as claimed in claim 1, characterized in that: Preheating treatment specifically includes: S201. Heating equipment: using an aluminum melting furnace or similar heating equipment to heat the recycled aluminum raw materials; S202. Temperature control: Ensure that the raw material is heated to a suitable casting temperature, usually 660°C, through temperature sensors and controllers; S203. Melting: During the heating process, the raw materials gradually melt to form molten aluminum.

5. The method for removing iron from recycled aluminum based on centrifugal casting as claimed in claim 1, characterized in that: Centrifugal casting specifically includes: S301. Centrifugal casting equipment: Select a suitable centrifugal casting machine to ensure that the equipment can operate stably and generate sufficient centrifugal force; S302. Mold installation: install the mold on the rotating shaft of the centrifugal casting machine and ensure the sealing and stability of the mold; S303. Aluminum liquid injection: When the aluminum liquid temperature reaches the required level, it is injected into the rotating mold through the pouring system; S304. Centrifugal action: The centrifugal casting machine starts to rotate, and the centrifugal force generated causes the iron element in the aluminum liquid to gather toward the mold wall; S305. Cooling: The aluminum liquid gradually cools and solidifies in the mold to form a casting.

6. The method for removing iron from recycled aluminum based on centrifugal casting as claimed in claim 1, characterized in that: Separation and collection specifically include: S401. Casting removal: After the casting is completely cooled, it is removed from the mold; S402. Surface cleaning: Use mechanical or chemical methods to remove the iron-enriched layer on the surface of the casting; S403. Quality inspection: Detect the iron content in the castings through chemical analysis or spectral analysis to ensure that it meets the requirements; S404. Collection: Collect qualified low-iron recycled aluminum for subsequent processing.

7. The method for removing iron from recycled aluminum based on centrifugal casting as claimed in claim 1, characterized in that: Subsequent processing specifically includes: S501. Refining: If the iron content in the casting is still high, further refining treatment can be carried out, including adding refining agents and stirring; S502. Alloying: According to application requirements, other metal elements can be added to the recycled aluminum for alloying treatment to improve its performance; S503. Forming: Processing recycled aluminum into required shapes and sizes, including plates and bars; S504. Inspection and packaging: Carry out quality inspection on finished products to ensure that they meet relevant standards and requirements, and then package and store them.

8. A system for removing iron from recycled aluminum based on centrifugal casting method, which realizes the method for removing iron from recycled aluminum based on centrifugal casting method as claimed in any one of claims 1 to 7, characterized in that: include: Raw material preparation module: collects and sorts recycled aluminum raw materials, removes impurities and oil stains, and ensures raw material quality; Preheating treatment module: heats the recycled aluminum raw material to a certain temperature to make it reach a suitable casting temperature; Centrifugal casting module: Using centrifugal casting equipment, the preheated recycled aluminum raw material is injected into the rotating mold, and the iron element in the aluminum liquid is gathered to the mold wall through the action of centrifugal force; Separation and collection module: After the aluminum liquid cools and solidifies, the casting is taken out of the mold, and the iron-enriched layer on the surface of the casting is removed by mechanical or chemical methods to obtain recycled aluminum with low iron content; Subsequent processing module: The low-iron content recycled aluminum is further processed, including refining and alloying, to meet different application requirements.

9. A computer device, comprising a memory and a processor, wherein the memory stores a computer program, and when the computer program is executed by the processor, the processor executes the steps of the method for removing iron elements from recycled aluminum based on centrifugal casting as described in any one of claims 1 to 7.

10. An information data processing terminal, comprising the system for removing iron from recycled aluminum based on centrifugal casting as claimed in claim 8.

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