Crucible cleaning device and high-purity aluminum production system

Abstract

The invention relates to a crucible cleaning device and a high-purity aluminum production system. The crucible cleaning device comprises a dustproof assembly and a cleaning assembly, wherein the dustproof assembly comprises a dustproof cover; the crucible cleaning assembly is arranged in the dust cover and comprises a scraper plate disc, a dust collection cylinder and a rotary driving part, a through hole is formed in the scraper plate disc, the dust collection cylinder is fixedly connected with the scraper plate disc, the dust collection end of the dust collection cylinder extends towards the side, facing the bottom of the crucible, of the scraper plate disc along the through hole, and the rotary driving part is connected with the dust collection cylinder; the scraper plate disc is used for scraping the inner wall of the crucible, and the rotary driving part is used for driving the scraper plate disc and the dust collection barrel to rotate synchronously and driving the dust collection barrel to suck impurities in the crucible. According to the crucible cleaning device and the high-purity aluminum production system, the crucible cleaning efficiency and consistency can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of a crucible cleaning device and a high-purity aluminum production system, and in particular to a crucible cleaning device and a high-purity aluminum production system. Background Art

[0002] Segregation purification technology is one of the important methods for producing high-purity aluminum. In this process, the crucible for purification plays a key role as the core container in the purification process. The role of the crucible is not only to hold the aluminum liquid, but also to ensure the smooth progress of the purification process. The quality of its inner surface and bottom directly affects the purification effect and the purity of the final product. Since the crucible needs to be recycled in production, after each production, when the crucible is separated from the crucible ingot, the inner surface and bottom of the crucible must be thoroughly cleaned and treated. In order to ensure the performance of the crucible in the next round of production, it is necessary to spray a special barrier and stripping mixture on its surface again. The quality of this spraying process is crucial. It not only affects the quality of the crucible ingot during the purification process, but also directly affects the service life of the crucible. If the spraying quality does not meet the standard, it may lead to residual pollutants on the inner wall of the crucible during the purification process, affecting the purity of the aluminum ingot, and even shortening the service life of the crucible and increasing production costs. Therefore, the control and quality assurance of the spraying process have become an important link in the segregation purification technology.

[0003] The crucible cleaning process in the high-purity aluminum production process usually requires placing the crucible on a tipping device and tilting it to 180 degrees. Manually use a scraping / shoveling tool to reach into the crucible to scrape / shovel off the aluminum skin debris adhering to the inner wall and bottom of the crucible, and then use a broom or other tools to sweep off the spray powder residue on the bottom of the inner surface of the crucible, and then collect and scrape it out of the crucible. The operation process is cumbersome, inefficient, and has poor quality consistency. Summary of the invention

[0004] Based on this, it is necessary to provide a crucible cleaning device and a high-purity aluminum production system that can improve the crucible cleaning efficiency and consistency in order to address the problem of low crucible cleaning efficiency in the prior art.

[0005] In a first aspect, a crucible cleaning device is provided, comprising:

[0006] Dust protection components, including dust covers;

[0007] A crucible cleaning assembly is arranged inside the dust cover, and includes a scraper disk, a dust collection cylinder and a rotating drive member, wherein the scraper disk is provided with a through hole, the dust collection cylinder is fixedly connected to the scraper disk, and the dust collection end of the dust collection cylinder extends along the through hole to the side of the scraper disk toward the bottom of the crucible, and the rotating drive member is connected to the dust collection cylinder; the scraper disk is used to scrape the inner wall of the crucible, and the rotating drive member is used to drive the scraper disk and the dust collection cylinder to rotate synchronously, and drive the dust collection cylinder to absorb impurities inside the crucible.

[0008] In one embodiment, the scraper disk includes a scraper disk body, a first scraping member and a connecting member, wherein the first scraping member is arranged on the bottom surface of the scraper disk body through the connecting member for scraping the bottom wall of the crucible, wherein the bottom surface of the scraper disk body is arranged toward the bottom wall of the crucible.

[0009] In one embodiment, the scraper disk further comprises a second scraping member fixedly connected to the scraper disk body, one end of the second scraping member extends radially away from the scraper disk body for scraping the side wall of the crucible.

[0010] In one embodiment, the connecting piece is made of a material including polyurethane.

[0011] In one embodiment, the dustproof assembly further includes a dustproof cover driving assembly, wherein the dustproof cover driving assembly is connected to the dustproof cover and is used to drive the dustproof cover to move and cover the crucible cleaning assembly.

[0012] In one embodiment, the dust cover driving assembly includes a mounting plate, a dust cover driving cylinder and a guide rod, the first end of the guide rod is connected to the mounting plate, the second end is fixedly connected to the scraper plate body, and the guide rod is arranged parallel to the telescopic direction of the dust cover driving cylinder, and the dust cover driving cylinder is used to drive the dust cover to move up and down, wherein the guide rod is a telescopic rod, or the first end of the guide rod is slidably connected to the mounting plate.

[0013] In one embodiment, it includes a dust collecting component and a hose, wherein a skeleton is provided inside the hose, and the dust collecting component is connected to the dust collecting cylinder via the hose for collecting impurities sucked by the dust collecting cylinder.

[0014] In one of the embodiments, a sealing member is circumferentially disposed on the edge of the dust cover.

[0015] In one of the embodiments, the sealing element is made of a material including polyurethane fluororubber.

[0016] In a second aspect, a high-purity aluminum production system is provided, comprising a crucible cleaning device as described in the first aspect or any embodiment of the first aspect, wherein the crucible cleaning device is used to clean a crucible to be cleaned in the system.

[0017] The above-mentioned crucible cleaning device and high-purity aluminum production system can scrape the inner wall of the crucible and absorb impurities at the same time through the synchronous rotation of the scraper disc and the dust collection tube, which greatly improves the cleaning efficiency, can realize automatic operation, and improves work efficiency. The setting of the dust cover can effectively prevent the dust and impurities generated during the cleaning process from leaking out, protecting the environment while also avoiding secondary pollution. The impurities are directly sucked away by the dust collection tube to prevent the impurities from settling again during the cleaning process. The scraper disc scraping the inner wall of the crucible can not only remove impurities, but also prevent corrosion and damage caused by long-term accumulation of impurities. The rotating drive drives the scraper disc and the dust collection tube to rotate synchronously to ensure that every part of the inner wall of the crucible can be effectively scraped and dusted, ensuring that the crucible cleaning efficiency and consistency can be improved, and the cleaning efficiency and effect can be improved. It also reduces the impact on the environment and extends the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] FIG1 is a schematic structural diagram of a crucible cleaning device in one embodiment of the present invention;

[0020] FIG2 is a schematic structural diagram of a crucible cleaning assembly according to an embodiment of the present invention;

[0021] FIG3 is a schematic diagram of the bottom structure of a scraper plate in one embodiment of the present invention;

[0022] FIG. 4 is a schematic structural diagram of a dustproof component in an embodiment of the present invention.

[0023] In order to make the above and other objects, features, advantages and embodiments of the present invention more clearly understood, the attached symbols are explained as follows:

[0024] 1: Crucible cleaning assembly, 11: Scraper plate, 12: Rotating plate, 13: Side wall brush, 14: Cantilever rotary dust collector, 15: Rotating drive device, 16: Bottom brush, 17: Connecting piece, 2: Dust prevention assembly, 21: Dust cover, 22: Dust cover mounting base, 23: Dust cover pressing guide column, 24: Dust cover driving cylinder, 25: First vacuum cleaner interface, 26: Second vacuum cleaner interface, 27: Third vacuum cleaner interface, 28: Vacuum cleaner inlet, 3: Lifting and translation mechanism, 4: Dust collection device, 5: Crucible, 6: Dust: 7: Impurity fragments, 8: Carrying trolley. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0028] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0030] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0031] Referring to FIG. 1 , FIG. 1 shows a schematic diagram of the structure of a crucible cleaning device in some embodiments of the present invention. An embodiment of the present invention provides a crucible cleaning device that can quickly clean a crucible and suck out and collect dust, impurities and debris. The crucible cleaning device includes:

[0032] Dust protection components, including dust covers;

[0033] The crucible cleaning assembly is arranged inside the dust cover, and includes a scraper disk, a dust collection cylinder and a rotating drive member, wherein a through hole is opened on the scraper disk, the dust collection cylinder is fixedly connected to the scraper disk, and the dust collection end of the dust collection cylinder extends along the through hole to the side of the scraper disk toward the bottom of the crucible, and the rotating drive member is connected to the dust collection cylinder; the scraper disk is used to scrape the inner wall of the crucible, and the rotating drive member is used to drive the scraper disk and the dust collection cylinder to rotate synchronously, and drive the dust collection cylinder to absorb impurities inside the crucible.

[0034] Among them, the dustproof component refers to a component used to prevent dust and debris from polluting the external environment during the crucible cleaning process. The crucible cleaning component 1 and the dustproof component 2 are installed on the lifting and translation mechanism 3, which is responsible for driving the crucible cleaning component 1 and the dustproof component 2 to move smoothly and accurately in the horizontal and vertical directions. The lifting and translation mechanism 3 adopts a screw auxiliary guide rail form, which can be realized by existing technology and will not be repeated here. The dust cover 21 can be supported by materials such as 304 stainless steel. The crucible cleaning component 1 is installed on the lifting and translation mechanism, and is used to drive the crucible cleaning component 1 to move in the horizontal direction and the vertical direction, so that the crucible cleaning component 1 can be pushed above the fixed crucible cleaning station, and the crucible cleaning component 1 can be smoothly reciprocated in the vertical direction to clean the crucible. The dustproof component is installed on the lifting and translation mechanism, and is used to drive the dustproof component to move in the horizontal direction, so that the dustproof component can be translated above the fixed crucible cleaning station, and then the dust cover on the dustproof component drives the cylinder to press down to buckle the dust cover on the edge of the crucible to form a closed cavity; the crucible cleaning component 1 and the dustproof component suction port are connected to the dust suction port of the dust collection device with a hose, which is used to absorb the dust generated by the crucible cleaning and the impurities and debris concentrated at the bottom of the crucible, so as to suck out and store the magazine debris and dust. The cantilever rotary dust collection cylinder is connected to the dust collection device, and is used to suck the debris at the bottom of the crucible into the dust collection device through the hollow tube of the cantilever rotary dust collection cylinder; optionally, the rotary drive device is installed on the crucible cleaning assembly mounting seat of the lifting and translation mechanism, and is used to drive the crucible cleaning assembly 1 to move up and down. Among them, the crucible cleaning assembly 1 is connected to the lifting and translation mechanism 3, and is used to drive the crucible cleaning assembly 1 to move in the horizontal direction and the vertical direction, so as to push the crucible cleaning assembly 1 above the fixed crucible cleaning station, and can realize the crucible cleaning assembly 1 to move back and forth smoothly in the vertical direction to realize the crucible cleaning;

[0035] The dustproof component 2 is connected to the lifting and translation mechanism 3, which is used to drive the dustproof component 2 to move in the horizontal direction, so as to translate the dustproof component 2 to above the fixed cleaning station of the crucible, and then the dust cover on the dustproof component 2 drives the cylinder to press down and buckle the dust cover on the edge of the crucible to form a closed cavity.

[0036] The above-mentioned crucible cleaning device can scrape the inner wall of the crucible and absorb impurities at the same time through the synchronous rotation of the scraper disc and the dust collection tube, which greatly improves the cleaning efficiency, can realize automatic operation, and improves the working efficiency. The setting of the dust cover can effectively prevent the dust and impurities generated during the cleaning process from leaking out, protecting the environment while also avoiding secondary pollution. The impurities are directly sucked away by the dust collection tube, which prevents the impurities from settling again during the cleaning process. The scraper disc scraping the inner wall of the crucible can not only remove impurities, but also prevent corrosion and damage caused by long-term accumulation of impurities. The rotating drive drives the scraper disc and the dust collection tube to rotate synchronously, ensuring that every part of the inner wall of the crucible can be effectively scraped and dusted, ensuring that the crucible cleaning efficiency and consistency can be improved, and the cleaning efficiency and effect can be improved, and the impact on the environment is reduced, and the service life of the equipment is extended.

[0037] Figure 2 is a schematic structural diagram of the crucible cleaning assembly in some embodiments of the present invention. Combined with Figure 2, in one embodiment, the scraper plate includes a scraper plate body, a first scraping member and a connecting member, and the first scraping member is arranged on the bottom surface of the scraper plate body through the connecting member, and is used to scrape the bottom wall of the crucible, wherein the bottom surface of the scraper plate body is arranged toward the bottom wall of the crucible.

[0038] Referring to FIG. 2 , in one embodiment, the scraper plate further comprises a second scraping member fixedly connected to the scraper plate body, one end of the second scraping member extending in a radial direction away from the scraper plate body to scrape the side wall of the crucible. The dust suction ports of the crucible cleaning assembly 1 and the dust prevention assembly 2 are connected to the dust suction port of the dust collection device 4 to absorb dust generated by the crucible cleaning and impurities and debris concentrated at the bottom of the crucible, so as to suck out and store the impurities and debris and dust. The connecting member 17 and the first scraping member 16 are fixed on the scraper plate 11, and the scraper plate 11 is fixed on the lower surface of the rotating disk 12; the second scraping member 13 is fixed on the fixing plate in the direction of the outer circle generatrix of the rotating disk 12; the rotating disk 12 is installed on the flange of the cantilever rotary dust suction cylinder 14, and the cantilever rotary dust suction cylinder 14 is connected to the driving shaft of the rotary drive device 15. The rotary drive device 15 rotates, driving the cantilever rotary dust suction cylinder 14 and the upper mounting assembly to rotate to brush the inner surface of the crucible. When the cantilever rotary dust suction cylinder 1 4 and the upper mounting assembly move to the bottom of the crucible, the first scraping member 16 is driven by the rotation of the cantilever rotary dust suction cylinder 14 to brush the bottom of the crucible; the scraper plate 11 and the connecting member 17 scrape the impurities, debris and dust swept to the bottom of the crucible to the center of the pot bottom; the fixed outlet end of the rotary drive device 15 is connected to the dust suction port of the dust collection device 4 to form a connected dust collection pipe channel; the dust collection device 4 is turned on, and the impurities, debris and dust concentrated in the center of the bottom of the crucible are sucked into the dust collection bin through the dust suction pipe channel for storage.

[0039] In one embodiment, the crucible cleaning assembly 1 may include a scraper plate, a rotary plate, a wire brush, a cantilever rotary dust collection cylinder and a rotary drive device, the scraper plate is installed at the end of the cantilever rotary dust collection cylinder, the cantilever rotary dust collection cylinder passes through the scraper plate, and is used to rotate and scrape the dust and impurities and debris at the bottom of the crucible to the bottom of the central cantilever rotary dust collection pipe mouth, the scraper plate may include a bottom wire brush, a scraper plate and a polyurethane rubber plate, wherein the bottom wire brush is installed on the scraper plate, and is used to brush the bottom of the crucible; the polyurethane The rubber sheet is installed on the scraper disk, which is used to separate the scraper disk from contacting the bottom and scratching the bottom of the crucible, and to form a closed cavity between the scraper disk and the bottom of the crucible; the rotary disk is installed on the cantilever rotary dust suction cylinder, the cantilever rotary dust suction cylinder passes through the rotary disk, the lower surface of the rotary disk is connected with the upper surface of the scraper disk, and the wire brush is vertically installed on the outer circle generatrix of the rotary disk, which is used to brush the inner surface of the crucible; the cantilever rotary dust suction cylinder is fixed on the rotary drive device, which is used to transmit the rotary motion of the rotary drive device to the scraper disk and the rotary disk.

[0040] FIG3 is a schematic diagram of the bottom structure of a scraper plate in an embodiment of the present invention. Referring to FIG3 , the diameter of the scraper plate body is slightly smaller than the inner diameter of the crucible, and the difference between the scraper plate body and the inner diameter of the crucible can be 10-15 mm. The scraper is arranged as shown in FIG3 . When rotating, the scraper scrapes and pushes the impurities, debris and dust gathered at the bottom of the crucible toward the center, and hangs the impurities, debris and dust to the center. The material is stainless steel. The first scraper 16 and the second scraper 13 are made of fine metal brushes. The radial dimension of the first scraper 16 installed on the scraper plate 11 along the scraper plate body is larger than the dimension of the scraper plate body, and the width is larger than the width of the scraper rubber plate, so that when the scraper plate 11 brushes / scrapes the bottom of the crucible, it first brushes and sweeps away the impurities and debris adhered to the bottom of the crucible, and then lowers the scraper to scrape the impurities, debris and dust at the bottom of the crucible to the center. The second scraper 13 is installed on the rotating disk 12. After installation, the diameter of the scraping range is slightly larger than the inner diameter of the crucible.

[0041] In one embodiment, the material of the connector includes polyurethane. The connector 17 is made of polyurethane fluororubber rubber sheet with a high temperature resistance of more than 150°C, and the hardness of the rubber sheet can support the ability to scrape / push the bottom impurities, debris and dust; the rotating disk 12 is made of lightweight materials such as aluminum alloy, and the rotating disk is dynamically balanced to reduce the bending moment force generated on the cantilever rotary dust suction cylinder 14 during rotation; the cantilever rotary dust suction cylinder 14 is made of medium carbon steel material, which has sufficient rigidity, and the inner wall of the dust suction cylinder is smooth to reduce the resistance during the dust suction process.

[0042] In one embodiment, the dustproof assembly further includes a dustproof cover driving assembly, which is connected to the dustproof cover and is used to drive the dustproof cover to move and cover the crucible cleaning assembly.

[0043] In one embodiment, the dust cover driving assembly includes a mounting plate, a dust cover driving cylinder and a guide rod, wherein the first end of the guide rod is connected to the mounting plate, the second end is fixedly connected to the scraper plate body, and the guide rod is arranged parallel to the telescopic direction of the dust cover driving cylinder, and the dust cover driving cylinder is used to drive the dust cover to move up and down, wherein the guide rod is a telescopic rod, or the first end of the guide rod is slidably connected to the mounting plate. In some embodiments, the dust cover assembly 2 includes a dust cover 21, a mounting plate 22, a guide rod 23, and a dust cover driving cylinder. The dustproof assembly may include a dust cover, a dust cover mounting base, a dust cover pressing guide column, a dust cover driving cylinder and other components, wherein the dust cover mounting base is fixed on the horizontal moving mechanism of the lifting and translation mechanism, used to fix the dustproof assembly, and can be driven by the horizontal moving mechanism to move horizontally to the working position and out; the dust cover pressing guide column and the dust cover driving cylinder are fixed on the dust cover mounting base, and are used for the dust cover pressing down / up guiding and pressing down / up driving; the dust cover is connected to the dust cover pressing down guide column and the dust cover driving cylinder, and is used for the dust cover to Smooth ascending / descending movement in the vertical direction; the lifting and translation mechanism may include a crucible cleaning assembly mounting seat, a lifting mechanism, a horizontal moving mechanism and a machine base; the crucible cleaning assembly mounting seat is fixed on the lifting mechanism for fixing the crucible cleaning assembly 1; the lifting mechanism is fixed on the horizontal moving mechanism for fixing the lifting mechanism so that the crucible cleaning assembly 1 can be lifted and lowered smoothly under the action of the lifting mechanism; the horizontal moving mechanism is fixed on the machine base for fixing the horizontal moving mechanism and its upper mechanism so that the crucible cleaning assembly 1 can be reciprocated horizontally smoothly on the horizontal moving mechanism.

[0044] Referring to FIG. 4 , the guide rods 23 and the dust cover driving cylinders 24 are fixed on the mounting plate 22. The guide rods 23 can be provided in four groups and arranged in a cross shape on the mounting plate 22. The dust cover driving cylinders 24 can be provided in two groups and arranged symmetrically on the mounting plate 22. The dust cover 21 is connected to the guide rods 23 and the dust cover driving cylinders 24. The dust cover 21 is driven by the dust cover driving cylinders 24 to reciprocate up and down on the guide rods 23 steadily, so that the dust cover can be pressed down steadily and tightly on the edge of the crucible or raised and separated from the crucible.

[0045] In one of the embodiments, it also includes a dust collection component and a hose. A skeleton is provided inside the hose. The dust collection component is connected to the dust collection cylinder through the hose, and is used to collect impurities sucked by the dust collection cylinder. The dust collection device can adopt a bag dust collector. The bag dust collector is connected to the crucible cleaning component 1 through a cantilever rotary dust collection cylinder, and the dustproof component dust suction port is connected with a flexible connecting pipe, which is used to suck out the dust and impurities in the crucible and store them in the dust collection device. The dust collection device 4 adopts a built-in skeleton hose to be connected to the crucible cleaning component 1 and the dustproof component 2 dust suction port, so that the hose will not be sucked flat during the dust collection process. A powder bin is provided in the dust collection device 4, which can store no less than 200L. The vacuum cleaner has a filter cartridge backblowing function to ensure the continuous suction of the vacuum cleaner.

[0046] In one embodiment, a sealing member is provided along the circumferential direction of the edge of the dust cover. The contact surface area between the dust cover and the crucible is bonded with a polyurethane fluororubber skin with a thickness of more than 20 mm, so that the sealing between the dust cover and the crucible is better.

[0047] In one embodiment, the material used to prepare the seal includes polyurethane fluororubber. Polyurethane material has excellent wear resistance and elasticity, and high mechanical strength. Fluorine rubber has good stability in high temperature environment, good resistance to chemicals, and good anti-aging performance. Using polyurethane fluororubber as a seal can improve the performance and service life of the seal.

[0048] In one of the embodiments, a high-purity aluminum production system is also provided, including a crucible cleaning device as in the first aspect or any embodiment of the first aspect, the crucible cleaning device is used to clean the crucible to be cleaned in the system. High-purity aluminum refers to aluminum with an aluminum content of more than 99.99% and extremely high purity. It can be purified by methods such as three-layer electrolysis, zone melting, and segregation to ensure its high purity and characteristics. Among them, the segregation method refers to a process of obtaining high-purity aluminum by gradually separating and removing impurities through multiple smelting and cooling processes and utilizing the solidification temperature difference between impurity elements and aluminum. In the process of producing high-purity aluminum by the segregation method, the aluminum material is usually placed in a crucible, heated to above its melting point by a smelting furnace to form a uniform molten state, and then the cooling rate is controlled to make the impurities crystallize and separate first, and the aluminum in the crucible is solidified. After the solidification is completed, the crucible and the aluminum ingot are separated, and then the impurities on the aluminum ingot are removed to obtain high-purity aluminum. The high-purity aluminum production system may include a smelting furnace, a crucible for purification, a cooling system, a spraying equipment, a control system, and other components.

[0049] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0050] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A crucible cleaning device, characterized in that: The crucible cleaning device comprises: Dust protection components, including dust covers; A crucible cleaning assembly is arranged inside the dust cover, and includes a scraper disk, a dust collection cylinder and a rotating drive member, wherein the scraper disk is provided with a through hole, the dust collection cylinder is fixedly connected to the scraper disk, and the dust collection end of the dust collection cylinder extends along the through hole to the side of the scraper disk toward the bottom of the crucible, and the rotating drive member is connected to the dust collection cylinder; the scraper disk is used to scrape the inner wall of the crucible, and the rotating drive member is used to drive the scraper disk and the dust collection cylinder to rotate synchronously, and drive the dust collection cylinder to absorb impurities inside the crucible.

2. The crucible cleaning device according to claim 1, characterized in that: The scraper plate includes a scraper plate body, a first scraping member and a connecting member, wherein the first scraping member is arranged on the bottom surface of the scraper plate body through the connecting member for scraping the bottom wall of the crucible, wherein the bottom surface of the scraper plate body is arranged toward the bottom wall of the crucible.

3. The crucible cleaning device according to claim 2, characterized in that: The scraper plate further comprises a second scraping member fixedly connected to the scraper plate body, one end of the second scraping member extending in a radial direction of the scraper plate body in a direction away from the scraper plate body for scraping the side wall of the crucible.

4. The crucible cleaning device according to claim 2, characterized in that: The connecting piece is made of a material comprising polyurethane.

5. The crucible cleaning device according to claim 1, characterized in that: The dustproof assembly further comprises a dustproof cover driving assembly, which is connected to the dustproof cover and is used to drive the dustproof cover to move and cover the crucible cleaning assembly.

6. The crucible cleaning device according to claim 5, characterized in that: The dust cover driving assembly includes a mounting plate, a dust cover driving cylinder and a guide rod, wherein the first end of the guide rod is connected to the mounting plate, and the second end is fixedly connected to the scraper plate body, and the guide rod is arranged parallel to the telescopic direction of the dust cover driving cylinder, and the dust cover driving cylinder is used to drive the dust cover to move up and down, wherein the guide rod is a telescopic rod, or the first end of the guide rod is slidably connected to the mounting plate.

7. The crucible cleaning device according to claim 1, characterized in that: It comprises a dust collecting component and a hose, wherein a skeleton is arranged inside the hose, and the dust collecting component is connected with the dust collecting cylinder through the hose, so as to collect impurities sucked by the dust collecting cylinder.

8. The crucible cleaning device according to claim 1, characterized in that: A sealing member is circumferentially arranged on the edge of the dust cover.

9. The crucible cleaning device according to claim 8, characterized in that: The sealing element is made of polyurethane fluororubber.

10. A high purity aluminum production system, characterized in that: The crucible cleaning device comprises the crucible cleaning device as described in any one of claims 1 to 9, wherein the crucible cleaning device is used for cleaning the crucible to be cleaned in the system.

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