Aluminum alloy continuous casting and rolling quenching and back blowing anti-scraping device

Abstract

The application relates to the aluminum processing technical field and proposes an aluminum alloy continuous-casting and -rolling quenching reverse-blowing anti-scratching device, which comprises a quenching tank, a conveying mechanism and a reverse-blowing assembly. The quenching tank is used for containing quenching liquid. The conveying mechanism penetrates through the quenching tank and comprises a conveying pipe which is used for guiding aluminum alloy rod materials to pass through the quenching tank and quenching in the quenching tank. The reverse-blowing assembly comprises an air source, a gas conveying pipe and a plurality of air injection nozzles. The air injection nozzles are used for reversely injecting compressed air towards the surface of the rod materials so as to form an air film between the rod materials and the conveying pipe and the inner wall of the quenching tank. A guide limiting assembly is arranged on the conveying path of the rod materials and is used for limiting the deviation of the rod materials and preventing surface scratches. The reverse-blowing assembly is arranged to generate air flow to form an air film, direct friction between the rod materials and contact components is reduced, the guide limiting structure is matched, the stable conveying of the rod materials is ensured, the probability of scratch generation is effectively reduced, and the product qualified rate is improved.

Description

Technical Field

[0001] This application relates to the field of aluminum processing technology, and more specifically, to a device for preventing abrasion during continuous casting and rolling of aluminum alloys by backflushing. Background Technology

[0002] In the production process of aluminum alloy continuously cast and rolled rods, quenching is one of the key processes, the purpose of which is to improve the mechanical properties of the rods.

[0003] In related technologies, during the quenching process of aluminum alloy rods, process residues such as quenching liquid and aluminum powder cannot be effectively cleaned. When the rods are conveyed in the quenching tank by the conveying mechanism, they are prone to friction and collision with the conveying channel and the inner wall of the quenching tank due to their own weight, fluctuations in conveying speed, or the flow of quenching liquid. This results in scratches on the surface of the rods, affecting the appearance quality, subsequent processing accuracy, and mechanical properties of the product, and increasing the scrap rate.

[0004] Therefore, there is an urgent need to design a device that can effectively remove quenching residue and reduce frictional scratches on the rod during the quenching process. Utility Model Content

[0005] To address the technical problem of scratches on the surface of aluminum alloy continuously cast and rolled bars caused by friction and collision during quenching, this application proposes an anti-scratching device for aluminum alloy continuous casting and rolling quenching.

[0006] In view of this, this application proposes a back-blowing and anti-scraping device for quenching aluminum alloy continuous casting and rolling, comprising: a quenching tank for containing quenching liquid; a conveying mechanism that passes through the quenching tank and includes a conveying pipe for guiding aluminum alloy rods through the quenching tank and quenching therein; a back-blowing assembly that includes an air source, an air supply pipe, and multiple air nozzles, the air nozzles spraying compressed air in the opposite direction toward the surface of the rod to form an air film between the rod and the conveying pipe and the inner wall of the quenching tank; and a guide and limiting assembly that is disposed on the rod conveying path to limit rod deviation and prevent surface scratches.

[0007] In some feasible methods, the airflow direction of the nozzle forms an angle of 30° to 60° with the conveying direction of the aluminum alloy rod.

[0008] In some feasible methods, multiple sets of jet nozzles are arranged circumferentially along the delivery pipe, and adjacent jet nozzles are staggered in the axial direction; wherein, the inner wall of the outlet section of the jet nozzle is provided with a spiral guide groove.

[0009] In some feasible embodiments, the aluminum alloy continuous casting and rolling quenching back-blowing anti-scraping device includes a guide and limiting component comprising: a wear-resistant anti-scratching ring and a positioning sleeve. The positioning sleeve is disposed in the quenching tank, and the wear-resistant anti-scratching ring is disposed inside the positioning sleeve. The inner diameter of the wear-resistant anti-scratching ring is adapted to the outer diameter of the aluminum alloy rod.

[0010] In some feasible embodiments, the aluminum alloy continuous casting and rolling quenching back-blowing anti-scraping device also includes: a flow regulating valve, installed on the gas supply pipe, for regulating the gas flow rate of the jet nozzle; and a pressure sensor, installed on the gas supply pipe, for detecting the gas pressure in the pipe.

[0011] In some feasible embodiments, the aluminum alloy continuous casting and rolling quenching back-blowing anti-scraping device further includes: a concentration detection device, installed in the quenching tank, for monitoring the concentration of the quenching liquid; and a temperature detection device, installed in the quenching tank, for monitoring the temperature of the quenching liquid.

[0012] In some feasible embodiments, the aluminum alloy continuous casting and rolling quenching backflush anti-scraping device further includes: a controller, which is electrically connected to a flow regulating valve, a pressure sensor, a concentration detection device, and a temperature detection device, respectively; the controller is configured to: control the flow regulating valve in a closed loop based on the signal from the pressure sensor, and output a quenching fluid status indication based on the signals from the concentration and temperature detection devices.

[0013] In some feasible embodiments, the aluminum alloy continuous casting and rolling quenching back-blowing anti-scraping device also includes: an operating interface for displaying the gas pressure and flow rate of the back-blowing components, and / or the temperature and concentration of the quenching liquid in the quenching tank.

[0014] In some feasible embodiments, the aluminum alloy continuous casting and rolling quenching back-blowing anti-scraping device also includes: a non-contact air seal device, which is set at the outlet end of the conveying pipe to blow away residual quenching liquid adhering to the surface of the rod.

[0015] In some feasible implementations, the delivery pipe has a funnel-shaped gradually expanding structure from the inlet section to the outlet section, and the jet nozzles of the backflush assembly are concentrated in this expanding section.

[0016] Compared with related technologies, this application has the following technical advantages: The aluminum alloy continuous casting and rolling quenching back-blowing anti-scraping device provided in this application includes a quenching tank, a conveying mechanism, a back-blowing assembly, and a guide and limiting assembly. The back-blowing assembly includes an air source, an air supply pipe, and multiple air nozzles. The guide and limiting assembly is located within the quenching tank and at the center line of the aluminum alloy rod conveying process, used to limit the deviation of the aluminum alloy rod. This device generates airflow through the back-blowing assembly to form an air film, reducing direct friction between the rod and contacting parts. Simultaneously, in conjunction with the guide and limiting structure, it ensures stable rod conveying, effectively reducing the probability of scratches and improving product yield.

[0017] Additional aspects and advantages of this application will become apparent in the following description or may be learned by practice of this application. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 A schematic diagram of an aluminum alloy continuous casting and rolling quenching back-blowing anti-friction device according to one embodiment of this application is shown.

[0019] in, Figure 1 The correspondence between the reference numerals and component names in the attached drawings is as follows: 1 Backflush main pipeline, 2 Quenching main pipeline, 3 Conveying pipe, 4 Quenching tank, 5 Backflush assembly, 6 Positioning seat sleeve, 7 Wear-resistant and anti-scratching ring, 8 Flow regulating valve, 9 Quenching fluid regulating valve, 10 Quenching fluid return pipe, 11 Rolling mill unit. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of this application, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0022] The following reference Figure 1 This application describes an aluminum alloy continuous casting and rolling quenching back-blowing anti-scraping device according to some embodiments.

[0023] like Figure 1 As shown, this application proposes a back-blowing and anti-scraping device for quenching aluminum alloy continuous casting and rolling, comprising: a quenching tank 4 for containing quenching liquid; a conveying mechanism that passes through the quenching tank 4 and includes a conveying pipe 3 for guiding aluminum alloy rods through the quenching tank 4 and quenching them therein; a back-blowing assembly 5, which includes an air source, an air supply pipe, and multiple air nozzles, the air nozzles spraying compressed air in the opposite direction toward the surface of the rod to form an air film between the rod and the conveying pipe 3 and the inner wall of the quenching tank 4; and a guide and limiting assembly disposed on the rod conveying path to limit rod deviation and prevent surface scratches.

[0024] The aluminum alloy continuous casting and rolling quenching back-blowing anti-scraping device provided in this application includes a quenching tank 4, a conveying mechanism, a back-blowing component 5, and a guide and limiting component. The jet nozzle of the back-blowing component 5 sprays compressed air in the opposite direction towards the surface of the rod, forming an air film between the rod and the conveying pipe 3 and the inner wall of the quenching tank 4. This air film acts as a buffer and isolation layer, effectively reducing direct contact between the rod and the inner wall of the conveying pipe 3 and the inner wall of the quenching tank 4 during conveying, thereby significantly reducing scratches on the rod surface caused by friction, improving product surface quality, and meeting the high requirements for the appearance and performance of aluminum alloy rods.

[0025] During operation, quenching fluid is supplied to the quenching tank 4 through the main quenching pipeline 2. Subsequently, the rolling mill unit 11 conveys the rod material into the quenching tank 4 to begin the quenching process. The main quenching pipeline 2 is equipped with a quenching fluid regulating valve 9, and the lower part of the quenching tank 4 is equipped with a quenching fluid return pipe 10.

[0026] The guide and limit components are installed on the rod conveying path to precisely limit the rod's deviation. During continuous casting, rolling, and quenching processes, this ensures that the rod is always conveyed stably along the predetermined path, avoiding production failures caused by rod swaying or deviation, and improving the continuity and stability of the production process.

[0027] Stable delivery and good surface condition help the quenching fluid to contact the surface of the rod evenly, allowing for more complete and uniform heat exchange in all parts of the rod, achieving a more ideal quenching effect, and improving the mechanical properties and internal structure uniformity of the aluminum alloy rod.

[0028] The aluminum alloy continuous casting and rolling quenching back-blowing anti-scratching device provided in this application solves the quality problem of surface scratches easily generated in aluminum alloy rods during the quenching process. Its core lies in using the back-blowing component 5 to form a stable air film between the rod and the conveying pipe 3 and the inner wall of the quenching tank 4. The supporting force of the airflow keeps the rod in a "suspended" state, changing the traditional mechanical contact to non-contact conveying. This effectively avoids direct friction and scratches between the rod surface and hard components, significantly improving the surface quality and yield of the product.

[0029] In some embodiments provided in this application, the airflow direction of the jet nozzle forms an angle of 30° to 60° with the conveying direction of the aluminum alloy rod.

[0030] In this embodiment, the airflow direction of the jet nozzle forms an angle of 30° to 60° with the conveying direction of the aluminum alloy rod. This angle range allows compressed air to be sprayed onto the surface of the rod at a suitable angle. This prevents the airflow from sliding away too quickly along the surface of the rod due to an angle that is too small, thus failing to form a stable air film. Conversely, it prevents the rod from being obstructed due to an angle that is too large. Instead, it precisely constructs a uniform and continuous air film between the rod and the inner wall of the conveying pipe 3 and the quenching tank 4, effectively playing a role in isolation and buffering, reducing friction between the rod and the contact surface, and lowering the risk of surface scratches.

[0031] Within this included angle range, the airflow has a certain pushing and stabilizing effect on the rod, which can help the rod remain stable during the conveying process, avoid the rod shaking and deviating, ensure the accuracy and stability of the conveying, and thus improve the continuity of the overall production process and product quality.

[0032] In some embodiments provided in this application, multiple sets of jet nozzles are arranged circumferentially along the delivery pipe 3, and adjacent jet nozzles are staggered in the axial direction; wherein, a spiral guide groove is provided on the inner wall of the outlet section of the jet nozzle.

[0033] In this embodiment, multiple sets of jet nozzles are arranged circumferentially along the conveying pipe 3, enabling them to spray airflow onto the aluminum alloy rod from different directions, fully covering the surface of the rod. The axially staggered arrangement makes the airflow more evenly distributed along the axial direction of the rod, avoiding dead zones in the airflow and forming a stable and uniform air film. This effectively isolates the rod from the conveying pipe 3 and the inner wall of the quenching tank 4, reducing the risk of scratches.

[0034] The spiral guide grooves on the inner wall of the nozzle outlet section alter the airflow state, causing the compressed air to form a rotating airflow upon ejection. This rotating airflow enhances the impact force and coverage on the rod surface, improves the stability and adhesion of the air film, and further strengthens the isolation and buffering effect.

[0035] A uniform and stable air film and good air jet effect can ensure smooth transport of aluminum alloy rods during quenching, reduce production failures caused by rod shaking or deviation, improve the continuity and stability of the production process, ensure the consistency of product quality, and improve production efficiency and product qualification rate.

[0036] like Figure 1 As shown, in some embodiments provided in this application, the guide limiting component includes: a wear-resistant and anti-scratching ring 7 and a positioning sleeve 6. The positioning sleeve 6 is disposed in the quenching tank 4, and the wear-resistant and anti-scratching ring 7 is disposed inside the positioning sleeve 6. The inner diameter of the wear-resistant and anti-scratching ring 7 is adapted to the outer diameter of the aluminum alloy rod.

[0037] In this embodiment, the positioning sleeve 6 provides stable support and fixation for the wear-resistant and scratch-resistant ring 7, ensuring it is precisely positioned on the rod conveying path. The inner diameter of the wear-resistant and scratch-resistant ring 7 is adapted to the outer diameter of the rod, allowing it to fit tightly against the rod and effectively limiting its lateral deviation during conveying. This ensures that the rod always moves stably in the predetermined direction, avoiding production accidents and product quality problems caused by deviation.

[0038] The wear-resistant and scratch-resistant ring 7 is made of tungsten carbide, which has excellent wear resistance and scratch resistance. During frequent passage of the pole, it can minimize friction with the pole surface, prevent the pole surface from being scratched, maintain the integrity and smoothness of the pole's appearance, and meet the high requirements for product surface quality.

[0039] This component has a simple and reasonable structure, is installed inside the quenching tank 4, and can adapt well to the quenching environment. While ensuring accurate feeding and surface protection of the rod material, it enhances the stability and reliability of the entire quenching system, which helps to improve production efficiency, reduce maintenance costs, and ensure the stability and consistency of product quality.

[0040] like Figure 1 As shown in some embodiments provided in this application, the aluminum alloy continuous casting and rolling quenching back-blowing anti-scraping device further includes: a flow regulating valve 8, which is installed on the gas supply pipe and is used to regulate the gas flow of the jet nozzle; and a pressure sensor, which is installed on the gas supply pipe and is used to detect the gas pressure in the pipe.

[0041] In this embodiment, the aluminum alloy continuous casting and rolling quenching back-blowing anti-scraping device also includes a flow regulating valve 8 and a pressure sensor. The flow regulating valve 8 is located in the air supply pipe and can flexibly adjust the air flow of the air nozzle according to different specifications of aluminum alloy rods and actual production needs. For thinner or softer rods, the flow rate can be appropriately reduced to avoid excessive air film causing rod swaying; for thicker rods or rods requiring stronger protection, the flow rate is increased to ensure the formation of a stable and effective air film, accurately meeting diverse production scenarios.

[0042] The pressure sensor can detect the gas pressure in the gas pipeline in real time. Once the pressure fluctuates abnormally, such as excessively high pressure which may cause safety hazards, or excessively low pressure which will prevent the formation of a qualified gas film, the system can detect it in time and take corresponding measures to ensure the stable operation of the device.

[0043] The flow control valve 8 and the pressure sensor work together to optimize the backflush and anti-scratch effect, reduce surface scratches on the rod, and improve product quality. At the same time, stable operation reduces production failures and improves overall production efficiency.

[0044] In some embodiments provided in this application, the aluminum alloy continuous casting and rolling quenching back-blowing anti-scraping device further includes: a concentration detection device, disposed in the quenching tank 4, for monitoring the concentration of the quenching liquid; and a temperature detection device, disposed in the quenching tank 4, for monitoring the temperature of the quenching liquid.

[0045] In this embodiment, the aluminum alloy continuous casting and rolling quenching back-blowing anti-scraping device also includes a concentration detection device and a temperature detection device. The concentration detection device is installed in the quenching tank 4 and can monitor the concentration of the quenching liquid in real time and accurately. The concentration of the quenching liquid directly affects its cooling capacity and the treatment effect on the rod material. Through real-time monitoring, changes in concentration can be detected in a timely manner. Once the concentration deviates from the appropriate range, the corresponding components can be quickly adjusted and replenished to ensure that the quenching liquid is always in the optimal concentration state, so that the aluminum alloy rod material obtains a uniform and ideal quenching effect, improving the mechanical properties and internal structure uniformity of the product.

[0046] The temperature detection device continuously monitors the temperature of the quenching fluid. Temperature is a critical parameter in the quenching process; excessively high or low temperatures can negatively impact the quality of the bar material. This device provides timely temperature feedback, facilitating control of the cooling rate and ensuring the bar material receives appropriate heat treatment at different stages, thus reducing defects such as cracks and deformation.

[0047] The concentration and temperature detection devices work together to provide accurate data support for the quenching process, ensuring that the quenching process is stable and controllable, thereby improving the quality and production stability of aluminum alloy rod products.

[0048] In some embodiments provided in this application, the aluminum alloy continuous casting and rolling quenching back-blowing and anti-scraping device further includes: a controller, which is electrically connected to the flow regulating valve 8, the pressure sensor, the concentration detection device and the temperature detection device respectively; the controller is configured to: control the flow regulating valve 8 in a closed loop according to the signal of the pressure sensor, and output the quenching liquid status prompt according to the signals of the concentration and temperature detection devices.

[0049] In this embodiment, the controller uses a closed-loop control system based on the signal from the pressure sensor to regulate the flow rate valve 8. When the gas pressure in the gas delivery pipe deviates from the set value, the controller responds quickly and automatically adjusts the opening of the flow rate valve 8 to precisely control the jet flow rate of the nozzle. This ensures the stability and effectiveness of the gas film, providing reliable anti-abrasion protection for the aluminum alloy rod regardless of changes in external conditions, reducing damage to the rod surface caused by friction, and improving product quality.

[0050] The controller outputs quenching fluid status prompts based on signals from the concentration and temperature detection devices. If the quenching fluid concentration or temperature exceeds the reasonable range, the controller will promptly issue an alarm to remind the operator to make adjustments. This helps maintain the optimal state of the quenching fluid, ensuring that the aluminum alloy rods achieve uniform and ideal heat treatment results during the quenching process, and improving the stability and consistency of product performance.

[0051] The entire control process is automated and intelligent, reducing manual intervention, lowering the difficulty of operation and error rate, improving production efficiency, and ensuring the continuity and stability of production.

[0052] In some embodiments provided in this application, the aluminum alloy continuous casting and rolling quenching back-blowing anti-scraping device further includes: an operation interface for displaying the gas pressure and flow rate of the back-blowing component 5, and / or the temperature and concentration of the quenching liquid in the quenching tank 4.

[0053] In this embodiment, the user interface can intuitively and in real-time display key parameters such as the gas pressure and flow rate of the backflushing component 5, as well as the temperature and concentration of the quenching fluid, to the operator. This eliminates the need for operators to travel between different devices to check data, allowing them to fully grasp the operating status of the device from a centralized location, thus improving the efficiency and convenience of information acquisition.

[0054] Based on the real-time data displayed on the user interface, operators can promptly and accurately control the production process. For example, they can adjust the backflushing force according to changes in gas pressure and flow rate, and adjust heat treatment parameters according to the temperature and concentration of the quenching fluid, ensuring that the aluminum alloy rods are quenched under optimal conditions, effectively improving product quality and performance stability.

[0055] When parameters malfunction, the interface can quickly display the error, helping operators to quickly locate the problem, take timely measures, reduce the impact of the malfunction on production, ensure the continuity and stability of production, and reduce production costs.

[0056] In some embodiments provided in this application, the aluminum alloy continuous casting and rolling quenching back-blowing and anti-scraping device further includes: a non-contact air seal device, which is set at the outlet end of the conveying pipe 3 at the quenching tank 4 for blowing away residual quenching liquid adhering to the surface of the rod.

[0057] In this embodiment, the non-contact air-sealing device effectively blows away residual quenching liquid adhering to the surface of the rod by spraying high-speed airflow without direct contact with the rod. This blowing method avoids the scratches and wear that may be caused to the rod surface by traditional contact cleaning methods, ensuring the smoothness and integrity of the rod surface.

[0058] By promptly removing residual quenching liquid from the surface of the rod, defects such as oxidation and corrosion caused by residual liquid in subsequent processes can be prevented. This helps improve the corrosion resistance and surface quality of the aluminum alloy rod, thereby enhancing the overall performance and market competitiveness of the product. The device is installed at the outlet end of the conveying pipe 3, without affecting the normal quenching process of the rod in the quenching tank 4. It can quickly complete the purging process as the rod leaves the quenching tank 4, making the production process more compact and efficient, reducing waiting time in production stages, and improving production efficiency.

[0059] In some embodiments provided in this application, the delivery pipe 3 has a gradually expanding structure in the shape of a trumpet from the inlet section to the outlet section, and the jet nozzles of the backflush assembly 5 are concentrated in the expanding section.

[0060] In this embodiment, the gradually expanding structure increases the internal space of the delivery pipe 3, allowing compressed air to diffuse fully within the more spacious area when ejected from the nozzle, forming a uniform and stable airflow field. This helps to create a uniform and stable air film around the rod, effectively isolating the rod from the inner wall of the delivery pipe 3, reducing friction and abrasion, and improving the surface quality of the rod.

[0061] The jet nozzles are concentrated in the expansion section. The expansion structure guides and amplifies the airflow, giving the ejected compressed air a stronger impact and wider coverage. This better cleans the surface of the rod, removing any impurities or residues that may be attached, and ensuring the cleanliness of the rod before it enters the next process.

[0062] Uniform airflow and good backflushing effect can reduce the shaking and deviation of the rod during the conveying process, ensuring that the rod passes through the conveying pipe 3 smoothly and steadily, thus improving the continuity and stability of production.

[0063] like Figure 1 As shown in the specific embodiment, this application provides an aluminum alloy continuous casting and rolling quenching back-blowing anti-scratching device, which can effectively remove quenching residues and reduce friction scratches generated by the rod during the quenching process. It includes a quenching tank 4, a conveying mechanism, a back-blowing component 5, and a guide limiting component.

[0064] The quenching tank 4 is used to hold the quenching liquid and provide a quenching environment for the aluminum alloy rod. The conveying mechanism runs through the quenching tank 4 and adopts the structure of the conveying pipe 3; its function is to guide the aluminum alloy rod through the quenching liquid to complete the quenching process.

[0065] The back-blowing assembly 5, as the core of the anti-scratch blowing system, consists of an air source (such as an air compressor), an air supply pipe, and multiple reverse-flow nozzles. Compressed air is delivered from the air source to each nozzle via the air supply pipe and sprayed in a centripetal direction onto the surface of the rod, thereby forming an air film between the rod and the inner wall of the conveying pipe 3 and the quenching tank 4. This air film utilizes the supporting effect of the airflow to reduce direct contact and effectively prevent scratches. The spray direction of the nozzles forms an angle of 30°–60° with the rod conveying direction, which can form an effective air film without excessively hindering the rod conveying. A flow regulating valve 8 is installed on the air supply pipe to adjust the jet flow rate according to the rod specifications, ensuring the anti-scratch and surface blowing effects.

[0066] The guide and limiting assembly is used to constrain the radial displacement of the rod during the conveying process. Its core components include a wear-resistant and scratch-resistant ring 7 made of tungsten carbide and a positioning seat 6. The scratch-resistant ring is selected and installed according to the diameter of the aluminum alloy rod being produced. With its high hardness and wear-resistant properties, it can effectively prevent friction damage to the surface of the rod while accurately limiting its movement.

[0067] The specific workflow is as follows: Equipment Installation and Alignment: The entire device is installed at the quenching station of the aluminum alloy continuous casting and rolling production line, ensuring that its centerline is aligned with the running trajectory of the rod, allowing the rod to pass through accurately. The main frame is fixed to the production line base using matching mounting brackets and bolts to ensure overall stability and prevent shaking or displacement during operation.

[0068] Backflush system connection and commissioning: Connect the backflush air source (such as a high-pressure blower or compressed air tank) to the main backflush line 1 via a pipeline, ensuring airtightness at the connection point using sealed fittings. Install a flow regulating valve 8 and a pressure sensor on the main backflush line 1 to adjust gas parameters according to process requirements and monitor them in real time. After starting the air source, gradually adjust the valve and observe the pressure reading to effectively remove impurities and moisture from the surface of the rod material without damaging it.

[0069] Anti-scratch component installation and adjustment: Install the anti-scratch limiting components within the main frame according to design requirements, ensuring smooth contact between the components and the poles to reduce friction and prevent surface scratches. Adjust the component position so that it provides necessary support and guidance without causing excessive resistance to the pole's movement; minor adjustments can be made based on the pole's diameter and material.

[0070] Operation and Monitoring: During production line operation, monitor the device's operating status in real time, focusing on the stability of backflushing gas pressure and flow rate, the working condition of anti-scratch components, and the surface quality of the rod material. Regularly check the quenching fluid concentration and temperature, and replenish or adjust as needed. Through the production line automation system, key parameters such as pressure, flow rate, and temperature are fed back to the operating interface in real time, facilitating personnel monitoring and intervention. If any abnormalities are found, such as a sudden drop in backflushing pressure or severe scratches on the rod surface, the machine should be stopped immediately for inspection and repair.

[0071] In summary, the aluminum alloy continuous casting and rolling quenching back-blowing anti-scraping device provided in this application generates airflow to form an air film by setting back-blowing component 5, which reduces the direct friction between the rod and the contact parts. At the same time, in conjunction with the guide and limit structure, it ensures stable conveying of the rod, effectively reduces the probability of scratches and improves the product qualification rate.

[0072] In this application, the term "multiple" refers to two or more unless otherwise expressly defined. The terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0073] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0074] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A device for preventing abrasion during quenching in continuous casting and rolling of aluminum alloys, characterized in that, include: Quenching tank, the quenching tank being used to contain quenching liquid; A conveying mechanism, which extends through the quenching tank, includes a conveying pipe for guiding aluminum alloy rods through the quenching tank and quenching them therein; A backflush assembly, comprising an air source, an air supply pipe, and multiple air nozzles, wherein the air nozzles spray compressed air in the opposite direction toward the surface of the rod to form an air film between the rod and the supply pipe and the inner wall of the quenching tank; A guide and limit assembly is provided on the rod conveying path to limit rod deviation and prevent surface scratches.

2. The aluminum alloy continuous casting and rolling quenching back-blowing anti-scraping device according to claim 1, characterized in that, The airflow direction of the jet nozzle forms an angle of 30° to 60° with the conveying direction of the aluminum alloy rod.

3. The aluminum alloy continuous casting and rolling quenching back-blowing anti-scraping device according to claim 2, characterized in that, The jet nozzles are arranged in multiple sets along the circumference of the delivery pipe, and adjacent jet nozzles are staggered in the axial direction. The inner wall of the outlet section of the jet nozzle is provided with a spiral guide groove.

4. The aluminum alloy continuous casting and rolling quenching back-blowing anti-scraping device according to claim 1, characterized in that, The guide and limiting assembly includes a wear-resistant and scratch-resistant ring and a positioning sleeve. The positioning sleeve is disposed in the quenching tank, and the wear-resistant and scratch-resistant ring is disposed inside the positioning sleeve. The inner diameter of the wear-resistant and scratch-resistant ring is adapted to the outer diameter of the aluminum alloy rod.

5. The aluminum alloy continuous casting and rolling quenching back-blowing anti-scraping device according to claim 1, characterized in that, Also includes: A flow regulating valve, located in the air supply pipe, is used to regulate the jet flow rate of the jet nozzle; A pressure sensor is installed on the gas pipeline to detect the gas pressure inside the pipeline.

6. The aluminum alloy continuous casting and rolling quenching back-blowing anti-scraping device according to claim 5, characterized in that, Also includes: A concentration detection device is installed in the quenching tank to monitor the concentration of the quenching liquid; A temperature detection device is installed in the quenching tank to monitor the temperature of the quenching liquid.

7. The aluminum alloy continuous casting and rolling quenching back-blowing anti-scraping device according to claim 6, characterized in that, Also includes: The controller is electrically connected to the flow regulating valve, pressure sensor, concentration detection device, and temperature detection device, respectively. The controller is configured to: control the flow regulating valve in a closed loop based on the signal from the pressure sensor, and output a quenching fluid status indication based on the signals from the concentration and temperature detection devices.

8. The aluminum alloy continuous casting and rolling quenching back-blowing anti-scraping device according to any one of claims 1 to 7, characterized in that, Also includes: The operating interface is used to display the gas pressure and flow rate of the backflush assembly, and / or the temperature and concentration of the quenching liquid in the quenching tank.

9. The aluminum alloy continuous casting and rolling quenching back-blowing anti-scraping device according to any one of claims 1 to 7, characterized in that, Also includes: A non-contact air seal device is installed at the outlet end of the conveying pipe to purge residual quenching liquid adhering to the surface of the rod.

10. The aluminum alloy continuous casting and rolling quenching back-blowing anti-scraping device according to any one of claims 1 to 7, characterized in that, The delivery pipe has a gradually expanding, funnel-shaped structure from the inlet section to the outlet section, and the jet nozzles of the backflush assembly are concentrated in this expanding section.

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