A device and cleaning system for cleaning ash from electrolytic cells.

Abstract

This invention provides a device and system for cleaning aluminum ash from an electrolytic cell. The cleaning device includes a blowing assembly composed of multiple rows of air ducts, a carbon steel support welded to the blowing assembly, and a fan connected to the air ducts via multiple air inlets. Automatically opening and closing grids are provided on the outer side of the suction inlets of the air ducts, with multiple grids spaced apart. Each grid has a first connecting rod with a waist-shaped limiting groove on its side, and a second connecting rod movably connected to the limiting groove. The other end of the second connecting rod is connected to a positioning plate, which has multiple connecting holes for connecting to a control rod. A driving device drives the control rod to move along its length to simultaneously control the closing of multiple grids. This invention utilizes the air duct assembly to blow or suck away aluminum ash from the electrolytic cell, achieving automated processing of aluminum ash on the upper part of the electrolytic cell, improving cleaning efficiency, and protecting human safety. Furthermore, the cleaning system achieves automatic cleaning of both the cleaning process and the cleaning device, enhancing the overall practicality of the cleaning system.

Description

Technical Field

[0001] This application relates to the field of aluminum electrolysis technology, specifically to a device and cleaning system for cleaning ash from electrolytic cells. Background Technology

[0002] During the electrolysis process, electrolytic residue forms on the surface of aluminum electrolytic cells. This residue needs to be removed through shelling and scooping. During this process, aluminum ash is released from the electrolytic cell under pressure, accumulating on the top of the cell. Typically, this requires personnel to stand around the cell to clean it, which is not only unsafe but also poses a risk of inhaling the ash, seriously endangering the operators' health. Therefore, there is an urgent need for a device that can automatically clean aluminum ash from electrolytic cells. Summary of the Invention

[0003] This utility model provides a device and cleaning system for cleaning ash from an electrolytic cell, so as to automatically clean and collect aluminum ash from the top of the electrolytic cell, solving the problems of low efficiency and high harm to human health caused by existing manual cleaning.

[0004] In a first aspect, this utility model discloses a device for cleaning dust from an electrolytic cell, comprising a blowing assembly consisting of multiple rows of air ducts, a carbon steel bracket welded to the blowing assembly, and a fan connected to the air ducts via multiple air inlet pipes; the outer side of the dust suction port of the air duct is provided with an automatically opening and closing grid plate, and the multiple grid plates are spaced apart; the sides of the multiple grid plates are provided with a first connecting rod containing a waist-shaped limiting groove, a second connecting rod is movably connected to the limiting groove, the other end of the second connecting rod is connected to a positioning plate, the positioning plate is provided with multiple connecting holes, the connecting holes are used to pin-connect with a control rod, and a driving device drives the control rod to move along its length direction; the control rod synchronously controls the angle of the multiple grid plates on the surface of the air duct.

[0005] In this invention, an air duct assembly is used to blow or suck away aluminum ash from the electrolytic cell, achieving automated treatment of aluminum ash on the upper part of the electrolytic cell, improving cleaning efficiency, and protecting human safety. The main structure for automatic control is the blowing assembly, which has multiple grids on the air duct for controlling the automatic opening and closing of the suction port. The angle at which the grids open relative to the air duct surface is adjustable, thus controlling not only automatic ash removal but also the ash removal rate and angle, further enhancing the automation level of the ash removal equipment.

[0006] Optionally, the drive device includes a lead screw motor or a cylinder, and the drive device is provided with a dust cover.

[0007] In this design, a dust cover is installed to prevent aluminum dust from entering the interior or surface of the drive equipment during the dust removal process, thus affecting the normal operation of the drive equipment.

[0008] Optionally, it also includes a docking mechanism connected to the blower assembly. The docking mechanism includes a regular hexagonal mesh plate with connecting columns on its periphery. The two ends of the connecting columns are welded to the mesh plate and the carbon steel bracket, respectively.

[0009] In this design, a docking mechanism is included to facilitate connection with the overhead crane's lifting device, thereby simplifying the installation of the dust removal unit. The mesh panel protects components from the overhead crane or other parts from falling into the electrolytic cell through the dust removal unit. Additionally, the connecting column is a structure used for connecting with the overhead crane's lifting device; this docking mechanism further enhances the practicality of the dust removal unit.

[0010] Optionally, the docking mechanism is located at the geometric center of the blower assembly, or the docking mechanism comprises multiple mechanisms and is evenly distributed throughout the blower assembly.

[0011] In this design, the installation location limits the aforementioned docking mechanism, requiring adjustments to both the dimensions of the electrolytic cell and the size of the cleaning device to ensure adaptability.

[0012] Optionally, the edge of the grid plate is wrapped with a sealing ring. The sealing ring includes at least two sealing strips that protrude from the side surface of the grid plate.

[0013] In this design, sealing rings are installed on the grid plate to improve the airtightness of the entire duct when the grid plate is closed. A pressure of 0.5 MPa is maintained for 30 minutes, and the pressure drop must be ≤5%. Airtightness is related to the efficiency of aluminum ash removal and the safety of the workshop environment. If the airtightness does not meet the requirements, secondary leakage of aluminum ash may occur, which will seriously affect the environmental safety of the workshop and reduce the efficiency of aluminum ash removal. The sealing strip has a raised structure; two or more raised ridges can increase the sealing surface area, which is beneficial to improving sealing performance.

[0014] Optionally, a grounding wire is also included, which is connected to the outer wall of the duct.

[0015] In this design, a grounding wire is installed on the duct to prevent electrochemical corrosion and protect the duct structure.

[0016] Secondly, this utility model provides a cleaning system, including any of the aforementioned devices for cleaning electrolytic cells, and a cleaning assembly for cleaning dust accumulated in the duct. The cleaning assembly includes a rotating shaft and a steel brush inserted into the rotating shaft, and a motor controls the rotating shaft to rotate inside the duct.

[0017] This invention also provides a cleaning system that can automatically remove aluminum ash from the electrolytic cell and automatically clean the aluminum ash deposited inside the cleaning device, thereby improving the overall practicality of the cleaning system.

[0018] In summary, the beneficial effects of this utility model are as follows:

[0019] The device for cleaning electrolytic cells provided by this utility model utilizes a duct system to blow or suck away aluminum ash from the electrolytic cells, achieving automated processing of aluminum ash on the upper part of the electrolytic cells, improving cleaning efficiency, and protecting human safety. Furthermore, the cleaning system achieves automatic cleaning of both the cleaning process and the cleaning device, enhancing the overall practicality of the cleaning system. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural schematic diagram of a device for cleaning ash from an electrolytic cell provided in this application;

[0021] Figure 2 This is a schematic diagram of the structure of the duct upper grid plate angle control mechanism in this application;

[0022] Figure 3 This is a three-dimensional structural diagram of the duct in an embodiment of this application;

[0023] Figure 4 This is a three-dimensional structural diagram of the docking mechanism in the embodiments of this application;

[0024] Figure 5 This is a schematic diagram showing the partial structure of the grid plate and its sealing ring installation in an embodiment of this application.

[0025] In the picture:

[0026] 1: Air duct; 2: Carbon steel support; 3: Grid plate; 31: Sealing ring; 4: First connecting rod; 5: Second connecting rod; 6: Positioning plate; 7: Control rod; 8: Docking mechanism; 81: Mesh plate; 82: Connecting column; 9: Air inlet duct. Detailed Implementation

[0027] The technical solutions in the embodiments of the application will now be clearly and completely described with reference to the accompanying drawings. Furthermore, the phrases "in one embodiment" or "in one embodiment" appearing throughout this specification do not necessarily refer to the same embodiment. Moreover, these specific features, structures, or characteristics can be combined in any suitable manner in one or more embodiments.

[0028] During the electrolysis process, electrolytic residue appears on the surface of aluminum electrolytic cells. This residue needs to be removed through shelling and scooping. During this process, aluminum ash is released from the electrolytic cell under pressure, accumulating at the top. Typically, this requires personnel to stand around the cell to clean it, which is not only unsafe but also poses a risk of inhaling the ash, seriously endangering the operator's health. Therefore, this invention provides a device and system for cleaning aluminum ash from electrolytic cells, primarily to automatically clean and collect the aluminum ash from the top of the cell, solving the problems of low efficiency and high health risks associated with existing manual cleaning methods.

[0029] The ash removal device mentioned in this specification is the device used for ash removal in the electrolytic cell of this utility model.

[0030] Firstly, such as Figure 1 and Figure 2 As shown, this utility model discloses a device for cleaning dust from an electrolytic cell, which includes a blowing assembly composed of multiple rows of air ducts 1, a carbon steel bracket 2 welded to the blowing assembly, and a fan connected to the air ducts 1 through multiple air inlet pipes 9; the outer side of the dust suction port of the air duct 1 is provided with an automatically opening and closing grid plate 3, and multiple grid plates 3 are spaced apart; the sides of the multiple grid plates 3 are provided with a first connecting rod 4 containing a waist-shaped limiting groove, a second connecting rod 5 is movably connected to the limiting groove, and the other end of the second connecting rod 5 is connected to a positioning plate 6. The positioning plate 6 is provided with multiple connecting holes, which are used to connect with a control rod 7. The driving device drives the control rod 7 to move along its length direction; the control rod 7 synchronously controls the angle of the multiple grid plates 3 on the surface of the air duct 1.

[0031] In this invention, an air duct 1 is used to blow or suck away aluminum ash from the electrolytic cell, achieving automated treatment of aluminum ash on the upper part of the electrolytic cell, improving cleaning efficiency, and protecting human safety. The main structure for automatic control is the blowing assembly, in which the air duct 1 is equipped with multiple grid plates 3 for controlling the automatic opening and closing of the suction port. The angle at which the grid plates 3 open relative to the surface of the air duct 1 is adjustable, thus controlling not only automatic ash removal but also the ash removal rate and angle, further enhancing the automation level of the ash removal equipment.

[0032] It should be noted that the dust removal method of the dust removal device for electrolytic cells in this utility model includes blowing air onto aluminum ash to remove it from the top of the electrolytic cell, and also includes sucking aluminum ash into the air duct 1 and subjecting it to settling treatment, so that the aluminum ash impurities in the top of the electrolytic cell are removed. Whether it is blowing or suction, the air volume and the angle of the airflow are controlled by controlling the opening of the grid plate 3 on the air duct 1 to achieve automated dust removal.

[0033] Specifically, the mechanism for controlling the opening and closing angle of the grid plate 3 on the air duct 1 is as follows: Figure 2As shown, when the grid plate 3 is in the closed state, it is embedded in the shell of the electrolytic cell. When the drive device drives the control rod 7 to move upward, the positioning plate 6 moves along the surface of the air duct 1. Because the second connecting rod 5 connects the grid plate 3 and the positioning plate 6, when the second connecting rod 5 pulls the first connecting rod 4, the second connecting rod 5 moves downward along the waist-shaped hole on the first connecting rod 4, causing the grid plate 3 to be pushed towards the inside of the air duct 1, that is, to open at a certain angle relative to the surface of the air duct 1. At this time, the grid plate 3 is opened at a certain angle, that is, as shown... Figure 3 As shown. When grid plate 3 is closed, the drive device drives the control lever 7 to move in the opposite direction. The process of closing grid plate 3 is the reverse process of opening grid plate 3.

[0034] The aforementioned driving device includes a lead screw motor or a cylinder, and is equipped with a dust cover. The control rod 7 can be moved up and down by connecting the lead screw of the lead screw motor to the control rod 7, or by connecting the piston rod of the cylinder to the control rod 7. Furthermore, the dust cover prevents aluminum dust from entering the interior or surface of the driving device during the dust removal process, thus avoiding disruption to its normal operation.

[0035] In addition, in this invention, the air velocity at the dust suction port is controlled within the range of 0.5-2m / s, so that aluminum dust can pass through the air duct 1 quickly when air is intake, and prevent aluminum dust from adhering to the inner wall of the air duct 1.

[0036] In some embodiments, the present invention further includes a docking mechanism 8 connected to the blower assembly. The docking mechanism 8 includes a regular hexagonal mesh plate 81, and a connecting post 82 is provided on the periphery of the mesh plate 81. The two ends of the connecting post 82 are respectively welded to the mesh plate 81 and the carbon steel bracket 2.

[0037] like Figure 1 and Figure 4 As shown, in this embodiment, a docking mechanism 8 is provided on the blowing assembly to facilitate connection with the overhead crane's lifting device, thereby simplifying the installation of the dust removal device. The top layer of mesh plate 81 protects components from the overhead crane or other parts from falling into the electrolytic cell through the dust removal device. Furthermore, the connecting posts 82 on the periphery of the mesh plate 81 are connected at both ends to the mesh plate 81 and the carbon steel bracket 2 that fixes the air duct 1, respectively. These connecting posts 82 also serve as a structure for connecting to the overhead crane's lifting device; hooks or clamps on the overhead crane can be directly connected to these connecting posts 82. The docking mechanism 8 in this embodiment further enhances the practicality of the dust removal device.

[0038] In the foregoing embodiments, the docking mechanism 8 can be located at the geometric center of the blowing assembly, or multiple docking mechanisms 8 can be evenly distributed throughout the blowing assembly. If the size of the electrolytic cell is small, the surface area to be covered by the required duct 1 is relatively small, and a single docking mechanism 8 at its geometric center is sufficient to stably lift the blowing assembly; conversely, multiple docking mechanisms 8 are needed to allow the overhead crane to clamp the blowing assembly from its stationary position, thereby improving the stability of the moving process during the installation of the blowing assembly. That is, in this embodiment, the aforementioned docking mechanism 8 is limited by its installation position, requiring a comprehensive adjustment based on the size of the electrolytic cell and the size of the dust removal device.

[0039] In some embodiments, the edges of all the grid plates 3 on the duct 1 are wrapped with sealing rings 31. The sealing rings 31 include at least two sealing strips that protrude from the side surfaces of the grid plates 3.

[0040] like Figure 5 As shown, a sealing ring 31 is provided around the periphery of the grid plate 3 that contacts the air duct 1. At least two sealing strips are provided on the sealing ring 31. The sealing strip is a protruding strip structure made by extrusion molding. When it contacts the air duct 1, the protruding sealing strip is interference-fitted with the inner wall of the air duct 1. In this embodiment, no specific limitation is made on the fitting parameters of the interference fit.

[0041] It should be noted that a sealing ring 31 is installed on the grid plate 3 to improve the airtightness of the entire duct 1 when the grid plate 3 is closed. It can be pressurized at 0.5 MPa for 30 minutes, and the airtightness requirement only needs to meet the requirement of pressure drop ≤ 5%. This sealing requirement ensures that aluminum ash does not overflow during ash removal. In other words, airtightness is related to the efficiency of aluminum ash removal and the safety of the workshop environment. If the airtightness requirement is not met, it may lead to secondary leakage of aluminum ash, which will seriously affect the environmental safety of the workshop and thus reduce the efficiency of aluminum ash removal. The sealing strip has a protruding structure; the raised ridges formed by two or more sealing strips can increase the sealing surface area, which is beneficial to improving sealing performance.

[0042] In some cases, the air velocity range of the dust extraction port is as follows: It also includes a grounding wire, which is connected to the outer wall of duct 1. A grounding wire is installed on duct 1 to prevent electrochemical corrosion and protect the structure of duct 1.

[0043] Secondly, this utility model provides a cleaning system, including any of the aforementioned devices for cleaning the electrolytic cell, and a cleaning assembly for cleaning the dust accumulated in the air duct 1. The cleaning assembly includes a rotating shaft and a steel brush inserted into the rotating shaft, and a motor controls the rotating shaft to rotate inside the air duct 1.

[0044] The cleaning system provided in this utility model can not only automatically remove aluminum ash from the electrolytic cell, but also automatically clean the aluminum ash deposited inside the cleaning device, thus improving the overall practicality of the cleaning system. Specifically, when aluminum ash is adsorbed on the inner wall of the air duct 1 in the cleaning device, or when the aluminum ash affects the opening and closing sealing of the grid plate 3, the cleaning component is controlled to make its steel brush rotate at high speed to remove the aluminum ash adsorbed on the inner wall of the air duct 1.

[0045] It should be noted that the dust removal assembly structure in this embodiment includes a rotating shaft, a motor, and a steel brush. The motor controls the rotation of the rotating shaft, causing the steel brush on the rotating shaft to contact the inner wall of the air duct 1. This embodiment does not impose specific limitations on the structure of the steel brush; related designs can be conceived by those skilled in the art.

[0046] Finally, this utility model provides a device and cleaning system for cleaning electrolytic cells. The cleaning device includes a blowing assembly composed of multiple rows of air ducts 1, a carbon steel support 2 welded to the blowing assembly, and a fan connected to the air ducts 1 through multiple air inlet pipes 9. Automatically opening and closing grid plates 3 are provided on the outer side of the dust suction port of the air ducts 1, with multiple grid plates 3 spaced apart. Each grid plate 3 has a first connecting rod 4 with a waist-shaped limiting groove on its side, and a second connecting rod 5 movably connected to the limiting groove. The other end of the second connecting rod 5 is connected to a positioning plate 6, which has multiple connecting holes for pinning to a control rod 7. The driving device drives the control rod 7 to move along its length to simultaneously control the closure of multiple grid plates 3. This utility model utilizes the air duct assembly 1 to blow or suck away aluminum ash from the electrolytic cell, achieving automated processing of aluminum ash on the upper part of the electrolytic cell, improving cleaning efficiency, and protecting human safety. Furthermore, the cleaning system achieves automatic cleaning of both the cleaning process and the cleaning device, improving the overall practicality of the cleaning system.

[0047] It should be noted that all the above embodiments belong to the same inventive concept, and the descriptions of each embodiment have different focuses. Where the description in a particular embodiment is not exhaustive, please refer to the description in other embodiments. The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to mutually.

[0048] The above embodiments merely illustrate the implementation of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A device for dusting of an electrolytic cell, characterized in that, The device includes a blower assembly consisting of multiple rows of air ducts (1), a carbon steel bracket (2) welded to the blower assembly, and a fan connected to the air ducts (1) via multiple air inlet pipes (9); the outside of the dust suction port of the air duct (1) is provided with an automatically opening and closing grid plate (3), and multiple grid plates (3) are spaced apart; the sides of multiple grid plates (3) are provided with a first connecting rod (4) containing a waist-shaped limiting groove, a second connecting rod (5) is movably connected to the limiting groove, and the other end of the second connecting rod (5) is connected to a positioning plate (6), the positioning plate (6) is provided with multiple connecting holes, the connecting holes are used to pin to a control rod (7), and the driving device drives the control rod (7) to move along its length direction; the control rod (7) synchronously controls the angle of the multiple grid plates (3) on the surface of the air duct (1).

2. The device for dusting of electrolytic cell according to claim 1, characterized in that, The driving device includes a lead screw motor or a cylinder, and the driving device is equipped with a dust cover.

3. The device for dusting of electrolytic cell according to claim 2, characterized in that, It also includes a docking mechanism (8) connected to the blower assembly. The docking mechanism (8) includes a regular hexagonal mesh plate (81). The mesh plate (81) has connecting posts (82) on its periphery. The two ends of the connecting posts (82) are welded to the mesh plate (81) and the carbon steel bracket (2), respectively.

4. The device for dust cleaning of an electrolytic cell according to claim 3, characterized in that, The docking mechanism (8) is located at the geometric center of the blower assembly, or the docking mechanism (8) comprises multiple parts and is evenly distributed on the blower assembly.

5. The apparatus for dust cleaning of an electrolytic cell according to claim 2, wherein The edge of the grid plate (3) is wrapped with a sealing ring (31).

6. The device for cleaning the electrolytic cell according to claim 5, characterized in that, The sealing ring (31) includes at least two sealing strips, which are protruding from the side surface of the grid plate (3).

7. The device for cleaning the electrolyzer according to any one of claims 1 to 6, characterized in that, It also includes a grounding wire, which is connected to the outer wall of the duct (1).

8. A cleaning system characterized by, The device for cleaning the electrolytic cell as described in any one of claims 1 to 7, and a cleaning assembly for cleaning the ash accumulated in the air duct (1), the cleaning assembly including a rotating shaft and a steel brush inserted into the rotating shaft, the rotating shaft being controlled by a motor to rotate inside the air duct (1).

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