Vacuum distillation device for efficiently separating metal impurities

Abstract

The utility model relates to a vacuum distillation device for efficiently separating metal impurities, which is suitable for the field of metal smelting and purification. The device comprises a vacuum chamber, a sealing cover, a heating device, a vacuum pump, a control panel and a condensing device. The vacuum chamber is supported by the heat insulation sleeve and connected with the vacuum pump to form a low-pressure environment, and the heating device adopts a partitioned heating mode to ensure that metal is uniformly heated and impurities are evaporated. And the evaporated impurities are cooled by the condensing device and discharged. The control panel integrates a human-computer interface and a remote monitoring function, and the heating power and the vacuum degree can be adjusted in real time. The device realizes efficient separation of metal and impurities, is suitable for various metal purification processes, and has the advantages of energy conservation, environmental protection and simplicity and convenience in operation.

Description

Technical Field

[0001] The utility model relates to the technical field of metal smelting and purification, and more particularly to a vacuum distillation device for efficiently separating metal impurities. Background Art

[0002] During the metal smelting process, metal materials often contain a variety of impurities, which can significantly affect the metal's physical and chemical properties, and thus its industrial application and service life. Traditional separation methods, such as chemical and physical methods, are inefficient, energy-intensive, and have significant environmental impacts, making them unable to meet the high-efficiency and environmentally friendly demands of modern metal smelting. Vacuum distillation technology, which utilizes the difference in boiling points between metals and impurities, heats and evaporates them under vacuum conditions for separation, and has become an effective method for separating impurities and purifying metals.

[0003] Existing vacuum distillation equipment has issues with heating uniformity, vacuum stability, and impurity condensation, resulting in low smelting efficiency and unsatisfactory separation results. To address these issues, it is crucial to design a vacuum distillation device that provides high efficiency, uniform heating, and stable vacuum to improve the efficiency of metal impurity separation and reduce energy consumption. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a vacuum distillation device for efficiently separating metal impurities. By optimizing the design of the heating device, vacuum pump and condensing device, efficient separation of metal and impurities is achieved, while ensuring the stable operation of the system and adapting to various metal purification processes.

[0005] To achieve the above objectives, the present invention provides the following technical solutions, which mainly include:

[0006] A vacuum distillation device for efficiently separating metal impurities, comprising a vacuum chamber, a sealing cover, a heating device, a vacuum pump, a control panel, and a condensing device:

[0007] A heat-insulating sleeve is provided on the outside of the vacuum chamber, and a plurality of first legs are fixedly connected to the bottom of the heat-insulating sleeve for supporting the equipment;

[0008] The bottom of the vacuum chamber is provided with a collecting port for collecting the separated metals;

[0009] The sealing cover is located above the vacuum chamber, and the inner side of the sealing cover is concave toward the center for concentrating steam;

[0010] The heating device is located between the thermal insulation sleeve and the vacuum chamber and is divided into a plurality of independent heating sections, each of which is composed of an independent heating element for uniformly heating the metal in the vacuum chamber;

[0011] The vacuum pump is connected to the sealing cover and the vacuum chamber through a vacuum pipe, and is used to maintain a stable vacuum environment during the distillation process;

[0012] The control panel is installed outside the thermal insulation sleeve, is electrically connected to the heating device and the vacuum pump, and is used to adjust and monitor the operating status of the device.

[0013] Preferably, the heating device is provided with a plurality of independent heating sections between the thermal insulation sleeve and the vacuum chamber, and uses a temperature sensor to monitor the temperature of each heating section in real time, so as to adjust the temperature according to the smelting requirements of different metals.

[0014] Preferably, the heating device is made of a high thermal conductivity material, which can accelerate temperature conduction and improve heating efficiency.

[0015] Preferably, the vacuum pump is a turbomolecular pump or a dry vacuum pump, which is suitable for maintaining a high vacuum environment during the vacuum distillation process.

[0016] Preferably, the vacuum pump is equipped with a vacuum regulating valve and a feedback control system for automatically adjusting the vacuum degree according to different stages of the distillation process.

[0017] Preferably, the condensing device includes a condensing tower and a condensing pipe. The condensing pipe is provided through the sealing cover and communicates with the vacuum chamber, and is used to guide the evaporated impurity gas into the condensing tower for condensation.

[0018] Preferably, the condensation tower is cooled by a cooling water circulation system to ensure that the impurity vapor can be quickly condensed.

[0019] Preferably, the control panel integrates a human-machine interface (HMI) and a remote monitoring module for real-time monitoring of the working status of the equipment and adjusting the heating power and vacuum degree.

[0020] Preferably, the collecting port is provided with a slag discharge port for regularly cleaning the metal impurities remaining during the distillation process.

[0021] Preferably, the vacuum chamber, heating device and condensation tower are made of high-temperature resistant materials or nickel-based alloy materials, and are suitable for long-term stable operation in high-temperature and vacuum environments.

[0022] It can be seen from the above technical solution that compared with the prior art, the beneficial effects of the present invention are as follows:

[0023] (1) Efficient separation: Through multi-zone heating and precise control of the vacuum pump, the metal and impurities are fully evaporated in a vacuum environment to achieve efficient separation.

[0024] (2) Uniform temperature: The heating device adopts zone control and high thermal conductivity materials to ensure uniform heating of the metal in the vacuum chamber, avoiding local overheating or insufficient heating.

[0025] (3) Stable vacuum degree: The vacuum pump system uses feedback control technology to automatically adjust the vacuum degree according to actual process requirements to ensure the stability of the vacuum environment.

[0026] (4) Energy saving and environmental protection: The thermal insulation sleeve design reduces heat loss, and the condensation system can efficiently recover and discharge impurity gases, reducing pollution to the environment and meeting modern environmental protection requirements.

[0027] (5) Convenient operation: The control panel integrates human-machine interface and remote monitoring functions. Operators can adjust the equipment operating status in real time, reduce manual intervention, and improve operating efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0029] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0030] Figure 2 It is a schematic diagram of the three-dimensional structure of the bottom of the utility model.

[0031] Figure 3 This is a structural sectional view of the vacuum chamber of the present invention.

[0032] Explanation of the reference numerals: 1-insulating sleeve, 101-first leg, 2-sealing cover, 3-vacuum chamber, 301-collecting port, 4-heating device, 5-vacuum pump, 501-vacuum pipe, 6-control panel, 7-condensation tower, 701-condensation pipe, 702-discharge port, 703-second leg. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] Example

[0035] A vacuum distillation device for efficiently separating metal impurities, such as Figures 1 to 3 Shown, including:

[0036] Vacuum chamber 3: An insulating sleeve 1 is installed outside the vacuum chamber 3. The bottom of the insulating sleeve 1 is supported by multiple first legs 101, which support the entire device. A collection port 301 is located at the bottom of the vacuum chamber 3 for collecting the purified metal material. The interior of the vacuum chamber 3 serves as a heating zone, where the metal evaporates due to heat, and impurities are discharged through the vacuum system.

[0037] Sealing cover 2: Installed above vacuum chamber 3, the inner side of sealing cover 2 is designed to be concave toward the center, which helps to concentrate the steam and prevent it from dispersing. This sealing cover 2 not only seals vacuum chamber 3 but also facilitates the centralized guidance of steam during the distillation process.

[0038] Heating device 4: Located between the insulation sleeve 1 and the vacuum chamber 3, heating device 4 employs a multi-zone design, with multiple heating zones comprised of independent heating elements. Each zone is independently controlled and monitored in real time by a temperature sensor, ensuring uniform temperature distribution within the vacuum chamber 3 and preventing localized overheating or insufficient heating, thus adapting to the smelting needs of different metals.

[0039] Vacuum pump 5: Vacuum pump 5 is connected to sealing cap 2 and vacuum chamber 3 via vacuum line 501, ensuring a stable vacuum environment during the distillation process. Vacuum pump 5 can be a turbomolecular pump or a dry vacuum pump, and is equipped with a vacuum control valve and feedback control system to automatically adjust the vacuum level according to the different stages of the smelting process, maintaining efficient system operation.

[0040] Control panel 6: The control panel 6 is installed outside the thermal insulation sleeve 1 and is electrically connected to the heating device 4 and the vacuum pump 5. The control panel 6 integrates the human-machine interface HMI and the remote monitoring module, which can monitor the operating status of the equipment and adjust the heating power and vacuum degree.

[0041] Condensation device: The condensation device includes a condensation tower 7 and a condensation pipe 701. The condensation pipe 701 is located in the center of the sealing cover 2 and connected to the vacuum chamber 3. It is used to guide the evaporated impurity vapor into the condensation tower 7. The condensation tower 7 is cooled by a cooling water circulation system. The condensed impurities are discharged from the discharge port 702 at the bottom of the condensation tower 7. The condensation tower 7 is supported on the ground by multiple second legs 703.

[0042] Here’s how it works:

[0043] 1. Device startup and preparation stage

[0044] 1.1 Equipment Inspection

[0045] The operator first checks the status of each part of the equipment to ensure that the vacuum chamber 3, sealing cover 2, heating device 4, vacuum pump 5, control panel 6, and condensing device 7 are in normal working order. Using the display screen on control panel 6, the operator checks the reading of the heating section temperature sensor, the vacuum feedback of vacuum pump 5, and the cooling system status of condensing device 7 to ensure that all parameters are within normal range.

[0046] 1.2 Vacuum pump start

[0047] Vacuum pump 5 is activated to evacuate air from vacuum chamber 3 through vacuum pipe 501. According to the system design, vacuum pump 5 is a turbomolecular pump capable of quickly reaching a preset vacuum level. At this point, the vacuum control valve automatically adjusts the speed of vacuum pump 5 based on feedback from vacuum chamber 3 to ensure optimal vacuum conditions.

[0048] 1.3 Heating system initialization

[0049] Control panel 6 activates heating device 4 via the human-machine interface (HMI). Each heating zone has its own temperature setting, ensuring uniform heating during the aluminum alloy smelting process. The system adjusts heating power based on the set melting point of the aluminum alloy and monitors temperature changes in each heating zone in real time using temperature sensors.

[0050] 2. Smelting and impurity separation process

[0051] 2.1 Addition of metal raw materials

[0052] Aluminum alloy feedstock is added to vacuum chamber 3 through the opening of sealing cover 2. The recessed design on the inside of sealing cover 2 ensures that the evaporated aluminum vapor is concentrated in the center of the cover, facilitating subsequent evaporation and separation. The operator confirms the entry of the aluminum alloy feedstock into vacuum chamber 3 and ensures that the equipment is sealed properly using control panel 6.

[0053] 2.2 Heating and evaporation

[0054] After the aluminum alloy enters the vacuum chamber 3, the heating device 4 gradually raises the temperature to the set melting point of the aluminum alloy. The aluminum alloy begins to melt and gradually evaporates. Because the vacuum pump 5 provides a stable low-pressure environment, the evaporation temperature of the aluminum alloy is lowered, facilitating the separation of impurities from the metal.

[0055] Heating device zone control: During the heating process, multiple heating zones operate simultaneously to ensure uniform temperature distribution within the vacuum chamber 3. Temperature sensors provide real-time feedback on the temperature of each heating zone. If the temperature in a zone is too high or too low, the control system automatically adjusts the power to prevent local overheating or underheating, which could affect the purification of the aluminum alloy.

[0056] 2.3 Impurity evaporation and condensation

[0057] During the heating process, impurities in the aluminum alloy evaporate before the aluminum alloy due to their lower boiling point. The evaporated impurities are directed through condensation pipe 701 on sealing cover 2 into condensation tower 7. The cooling water circulation system within condensation tower 7 rapidly cools the impurity vapor and condenses it into a liquid or solid state. The condensed impurities are then regularly discharged through discharge port 702 at the bottom of condensation tower 7.

[0058] Condensation tower design and effects: Condensation pipe 701 directs the evaporated impurity gases to condensation tower 7. The cooling water circulation system in condensation tower 7 maintains a constant low temperature environment, allowing the impurity vapors to condense quickly and be discharged through discharge port 702, avoiding secondary evaporation and backflow of impurities, and ensuring the separation effect during the smelting process.

[0059] 2.4 Vacuum control

[0060] Throughout the smelting process, the vacuum pump 5 operates continuously to maintain a low pressure in the vacuum chamber 3. The vacuum pump 5 adjusts its operating state through a vacuum feedback control system to ensure that an appropriate vacuum level is maintained at different smelting stages and to prevent pressure fluctuations from affecting the smelting effect.

[0061] 3. End of smelting and metal collection

[0062] 3.1 Heating device gradually cools down

[0063] When the smelting is nearly complete, the control system controls the cooling process by gradually reducing the power of the heating device 4. Each heating section reduces the power output in turn to prevent the temperature in the equipment from dropping suddenly and affecting the solidification quality of the metal.

[0064] 3.2 Metal Collection

[0065] When the system detects that smelting is complete, the operator turns off the heating device 4 and stops the vacuum pump 5. The purified aluminum alloy is then discharged from the vacuum chamber 3 through the collection port 301 at the bottom of the vacuum chamber 3. Most of the impurities evaporate during the heating process, and the remaining pure aluminum alloy enters a collection container through the collection port 301, which the operator can clean regularly.

[0066] 3.3 Impurity emissions

[0067] The discharge port 702 at the bottom of the condensation tower 7 is used to regularly discharge condensed impurities. These impurities have been cooled into solid or liquid form by the condensation system, and the operator can clean them through the discharge port 702 to ensure the efficiency of the condensation tower 7 in subsequent operations.

[0068] 4. Equipment cleaning and maintenance

[0069] 4.1 Equipment Cleaning

[0070] After smelting is completed, the operator needs to clean the vacuum chamber 3, sealing cover 2, heating device 4 and condensing tower 7 to ensure that there is no residue in the equipment. The inspection port on the sealing cover 2 can be used to check the internal situation of the vacuum chamber 3 and clean out the impurities or residues that have not evaporated in time.

[0071] 4.2 Regular Maintenance

[0072] The heating elements of the heating unit 4, the piping of the vacuum pump 5, and the cooling system of the condensing unit 7 all require regular inspection and maintenance to ensure that the equipment is always in optimal working condition. In particular, the sensors of the heating unit 4, the sealing components of the vacuum pump 5, and the cooling water circulation system of the condensing tower 7 are key to maintaining efficient operation of the equipment.

[0073] 5. Equipment operation data and feedback analysis

[0074] Throughout the smelting process, the control panel 6 records the equipment's operating parameters, including temperature, vacuum level, heating power, and impurity emissions, in real time via the human-machine interface (HMI). This data is stored and used for subsequent analysis, providing a basis for optimizing the next smelting process.

[0075] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. Reference can be made to the common and similar parts between the various embodiments. For the devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple, and the relevant parts can be referred to the method description.

[0076] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A vacuum distillation apparatus for efficiently separating metal impurities, comprising a vacuum chamber (3), a sealing cover (2), a heating device (4), a vacuum pump (5), a control panel (6), and a condensing device, characterized in that: A heat-insulating sleeve (1) is provided on the outside of the vacuum chamber (3), and a plurality of first legs (101) are fixedly connected to the bottom of the heat-insulating sleeve (1) for supporting the equipment; The bottom of the vacuum chamber (3) is provided with a collecting port (301) for collecting the separated metal; The sealing cover (2) is located above the vacuum chamber (3), and the inner side of the sealing cover (2) is concave toward the center for concentrating steam; The heating device (4) is located between the thermal insulation sleeve (1) and the vacuum chamber (3) and is divided into a plurality of independent heating sections, each of which is composed of an independent heating element for uniformly heating the metal in the vacuum chamber; The vacuum pump (5) is connected to the sealing cover (2) and the vacuum chamber (3) through a vacuum pipe (501) and is used to maintain a stable vacuum environment during the distillation process; The control panel (6) is installed outside the heat-insulating sleeve (1), is electrically connected to the heating device (4) and the vacuum pump (5), and is used to adjust and monitor the operating status of the device.

2. A vacuum distillation apparatus for efficiently separating metal impurities according to claim 1, characterized in that: The heating device (4) is provided with a plurality of independent heating sections between the heat-insulating sleeve (1) and the vacuum chamber (3), and uses a temperature sensor to monitor the temperature of each heating section in real time, so as to adjust the temperature according to the smelting requirements of different metals.

3. A vacuum distillation apparatus for efficiently separating metal impurities according to claim 2, characterized in that: The heating device (4) is made of a high thermal conductivity material, and can accelerate temperature conduction and improve heating efficiency.

4. The vacuum distillation apparatus for efficiently separating metal impurities according to claim 1, characterized in that: The vacuum pump (5) is a turbomolecular pump or a dry vacuum pump, and is suitable for maintaining a high vacuum environment during the vacuum distillation process.

5. The vacuum distillation apparatus for efficiently separating metal impurities according to claim 4, characterized in that: The vacuum pump (5) is equipped with a vacuum regulating valve and a feedback control system for automatically adjusting the vacuum degree according to different stages of the distillation process.

6. The vacuum distillation apparatus for efficiently separating metal impurities according to claim 1, characterized in that: The condensing device comprises a condensing tower (7) and a condensing pipe (701). The condensing pipe (701) is provided through the sealing cover (2) and communicates with the vacuum chamber (3), and is used to guide the evaporated impurity gas into the condensing tower (7) for condensation.

7. A vacuum distillation apparatus for efficiently separating metal impurities according to claim 6, characterized in that: The condensation tower (7) is cooled by a cooling water circulation system to ensure that the impurity vapor can be quickly condensed.

8. The vacuum distillation apparatus for efficiently separating metal impurities according to claim 1, characterized in that: The control panel (6) integrates a human-machine interface (HMI) and a remote monitoring module, and is used to monitor the working status of the equipment in real time and adjust the heating power and vacuum degree.

9. The vacuum distillation apparatus for efficiently separating metal impurities according to claim 1, characterized in that: The collecting port (301) is provided with a slag discharge port for regularly cleaning the metal impurities remaining during the distillation process.

10. A vacuum distillation apparatus for efficiently separating metal impurities according to any one of claims 1 to 9, characterized in that: The vacuum chamber (3), the heating device (4) and the condensation tower (7) are made of high-temperature resistant materials or nickel-based alloy materials, and are suitable for long-term stable operation in a high-temperature and vacuum environment.

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