A stepped composite cavity dust removal device

Abstract

This utility model discloses a stepped composite cavity dust removal device, relating to the technical field of dust removal equipment. Specifically, it includes: at least two parallel upper suction cavities positioned above the electrode conveyor path for adsorbing dust above the electrodes. The air inlets of each upper suction cavity are at the same horizontal height, and the heights of the upper suction cavities are different and arranged in descending order of height; multiple upper branch pipes corresponding one-to-one with each upper suction cavity, the air inlet of each upper branch pipe connected to the first sidewall of the corresponding upper suction cavity, the first sidewall being a sidewall connected to an upper suction cavity shorter than itself; and an upper main pipe connected to an external negative pressure source, the air outlets of each upper branch pipe connected to the upper main pipe. The aim is to optimize dust removal while ensuring electrode quality, reducing wind speed loss, and improving dust collection efficiency.

Description

Technical Field

[0001] This utility model relates to the field of dust removal equipment technology, and in particular to a stepped composite cavity dust removal device. Background Technology

[0002] With the widespread application of lithium-ion batteries, the continuous optimization and improvement of battery manufacturing processes have led to increasingly higher requirements for product quality. Electrode cutting is a crucial step in the lithium-ion battery production process. However, due to the characteristics of the electrode material and the friction and shearing effects during cutting, a large amount of dust is generated on the electrode surface. These dust particles not only adversely affect the quality of the electrodes but can even pose safety hazards in extreme cases.

[0003] Dust issues manifest in two main ways: First, dust particles on the electrode surface may be carried into other production stages during subsequent processes, leading to poor contact or decreased battery performance during assembly. Second, dust particles themselves have high electrical conductivity; once accumulated inside the battery, they may cause short circuits or other electrical faults, thus affecting battery safety and lifespan. Therefore, solving the dust problem generated during electrode cutting has become a crucial technical challenge that must be addressed.

[0004] Traditional dust handling primarily relies on vacuum cleaners, but current vacuum cleaners typically employ a single-chamber, single-layer dust collection box design. In this design, the airflow velocity in the dust collection box's inlet duct generally needs to reach at least 15 m / s. However, because the electrode surface must not collide during electrode transport, the distance between the suction port of the dust collection box and the electrode surface must generally be maintained at 5-10 mm. This distance results in an actual working airflow velocity of only 3 m / s, with an airflow loss exceeding 80%, making it impossible to maintain stable dust collection performance.

[0005] To further improve suction performance and dust handling efficiency, some technologies have attempted to adopt multi-chamber composite designs. However, the added vacuum tubing increases system complexity, leading to spatial interference and wiring difficulties.

[0006] Therefore, under the premise of using a multi-cavity composite design, how to simplify the wiring design of vacuum pipelines, avoid mutual interference between vacuum pipelines, and improve dust collection efficiency has become a technical problem that urgently needs to be solved in the lithium-ion battery production process. Utility Model Content

[0007] The main purpose of this utility model is to provide a stepped composite cavity dust removal device, which aims to simplify the wiring design of vacuum pipelines, avoid mutual interference between vacuum pipelines, and improve dust collection efficiency under the premise of using a multi-cavity composite design.

[0008] To achieve the above objectives, this utility model proposes a stepped composite cavity dust removal device, comprising:

[0009] At least two parallel upper suction chambers are located above the electrode conveyor belt path and are used to adsorb dust on the electrode. The air inlets of each upper suction chamber are at the same horizontal height, and the heights of each upper suction chamber are different and arranged in descending order of height.

[0010] Multiple upper branch pipes correspond one-to-one with each upper suction chamber. The air inlet of each upper branch pipe is connected to the first side wall of the corresponding upper suction chamber. The first side wall is a side wall connected to an upper suction chamber that is smaller than itself in height.

[0011] The main pipeline is connected to an external negative pressure source, and the outlets of each branch pipeline are connected to the main pipeline.

[0012] This device features a stepped arrangement of multiple upper suction chambers, effectively improving dust removal efficiency. The height difference and parallel arrangement of each upper suction chamber ensure more uniform airflow, preventing poor dust removal due to localized airflow obstruction. Through the rational connection of the upper branch pipes and the main upper pipe, dust can be efficiently guided to an external negative pressure source, further enhancing the stability and efficiency of the dust removal device. The device has a simple structure, facilitating installation and maintenance.

[0013] In one embodiment of this application, at least one air inlet of the upper suction chamber is provided with an upper chamber cover, and a first slope surface is formed on the upper chamber cover facing the electrode feeding direction, and a suction port is provided on the first slope surface.

[0014] The combined design of the upper chamber cover, the first ramp, and the suction port effectively guides airflow through the upper suction chamber's air inlet, thereby improving dust adsorption efficiency. The first ramp effectively reduces airflow eddies and turbulence, ensuring smooth airflow at the upper suction chamber's air inlet, allowing dust to be sucked in more efficiently.

[0015] In one embodiment of this application, a first sealing ring is provided between the upper cavity cover and the upper dust suction cavity.

[0016] By setting a first sealing ring between the upper chamber cover and the upper suction chamber, it is possible to effectively ensure that there is no airflow leakage during the operation of the device, thereby improving the dust removal efficiency and the stability of the device.

[0017] In one embodiment of this application, the sealing ring is an O-ring.

[0018] By using an O-ring seal between the upper chamber cover and the upper suction chamber, leakage of airflow or dust can be effectively prevented, ensuring excellent sealing performance of the device and avoiding a decrease in dust removal efficiency due to air or dust leakage.

[0019] In one embodiment of this application, the upper cavity cover corresponds one-to-one with the upper dust suction cavity, and the upper cavity covers are connected to each other to form an upper cover body, which is integrally formed.

[0020] The upper chamber cover corresponds one-to-one with the upper suction chamber and is connected together by an integrally molded upper cover body, which can effectively improve the overall sealing performance and structural stability of the dust removal device. The upper cover body, manufactured by an integral molding process, simplifies the assembly process.

[0021] In one embodiment of this application, it further includes:

[0022] At least two parallel lower suction chambers are located below the electrode conveyor belt path and are used to adsorb dust below the electrode. The air inlets of each lower suction chamber are at the same horizontal height, and the heights of each lower suction chamber are different and arranged in descending order of height.

[0023] Multiple lower branch pipes correspond one-to-one with each lower suction chamber. The air inlet of each lower branch pipe is connected to the second side wall of the corresponding lower suction chamber. The second side wall is the side wall connected to the lower suction chamber, which is smaller than itself in height.

[0024] The main pipeline is connected to an external negative pressure source, and the outlets of each branch pipeline are connected to the main pipeline.

[0025] It can achieve a stepped arrangement of multiple lower suction chambers, which, in conjunction with the lower branch pipes and the lower main pipe, effectively improve the dust removal efficiency of the dust removal device. The lower suction chambers are arranged in descending order of height, which ensures that dust is evenly adsorbed throughout the entire lower suction chamber area and guided to the lower main pipe for processing through the lower branch pipes.

[0026] In one embodiment of this application, the lower suction chamber is disposed opposite to the upper suction chamber.

[0027] The lower suction chamber is positioned opposite to the upper suction chamber, ensuring that the entire dust removal system covers all dust areas above and below the electrode, achieving all-around dust adsorption.

[0028] In one embodiment of this application, at least one of the air inlets on the lower suction chamber is provided with a lower chamber cover, and at least one first waist-shaped groove is formed on the lower chamber cover. The bottom of the first waist-shaped groove is provided with a first through hole connecting the first waist-shaped groove and the lower suction chamber.

[0029] A lower chamber cover is provided at the air inlet of at least one lower dust collection chamber, and a first waist-shaped groove is formed on the lower chamber cover. A first through hole connecting the first waist-shaped groove and the lower dust collection chamber is provided at the bottom, which can effectively improve the airflow guidance and dust adsorption efficiency.

[0030] In one embodiment of this application, a second sealing ring is provided between the lower cavity cover and the lower dust suction cavity.

[0031] By setting a second sealing ring between the lower chamber cover and the lower suction chamber, the sealing performance of the lower suction chamber can be significantly improved, preventing dust or gas leakage at the air inlet and ensuring that the negative pressure suction is concentrated on the dust collection area, thereby improving dust removal efficiency.

[0032] In one embodiment of this application, a second inclined surface is formed on the lower cavity cover facing the electrode feeding direction, a second waist-shaped groove is provided on the second inclined surface, and a second through hole is provided at the bottom of the second waist-shaped groove to connect the second waist-shaped groove and the lower dust collection cavity.

[0033] The lower cavity cover is provided with a second inclined surface facing the electrode feeding direction, which allows the dust airflow to slide in a predetermined direction and gather in the second waist-shaped groove; after being guided by the second waist-shaped groove, the dust is efficiently sucked into the lower dust suction cavity through the second through hole at the bottom, realizing the rapid removal of dust under the electrode.

[0034] By adopting the above technical solution, multiple upper suction chambers can be arranged in a stepped manner, thereby effectively improving dust removal efficiency. The height difference and parallel arrangement of each upper suction chamber ensure more uniform airflow, avoiding poor dust removal effect caused by local airflow obstruction. Through the reasonable connection of the upper branch pipes and the upper main pipe, dust can be efficiently guided to the external negative pressure source, further improving the stability and working efficiency of the dust removal device. The device has a simple structure and is easy to install and maintain. Attached Figure Description

[0035] The present invention will now be described in detail with reference to specific embodiments and accompanying drawings, wherein:

[0036] Fig. 1 This is a schematic diagram of the structure of the first embodiment of the present utility model;

[0037] Fig. 2 This is an exploded structural diagram of the upper suction chamber, the upper chamber cover, and the first sealing ring of this utility model;

[0038] Fig. 3 This is an exploded structural diagram of the lower suction chamber, lower chamber cover, and second sealing ring of this utility model;

[0039] 10. Electrode; 20. Upper suction chamber; 30. Upper branch pipe; 40. Upper main pipe; 50. Upper cover; 60. Lower suction chamber; 70. Lower chamber cover; 80. Lower branch pipe; 90. Lower main pipe; 21. First sealing ring; 51. Suction port; 61. Second sealing ring; 71. Second waist-shaped groove; 72. First waist-shaped groove. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the following specific embodiments are only used to explain this utility model and do not constitute a limitation on this utility model.

[0041] like Figs. 1 to 3 As shown, in order to achieve the above objectives, this utility model proposes a stepped composite cavity dust removal device, comprising:

[0042] At least two parallel upper suction chambers 20 are located above the belt path of the electrode 10 and are used to adsorb dust on the electrode 10. The air inlets of each upper suction chamber 20 are at the same horizontal height, and the heights of each upper suction chamber 20 are different and arranged in descending order of height.

[0043] Multiple upper branch pipes 30 correspond one-to-one with each upper suction chamber 20. The air inlet of each upper branch pipe 30 is connected to the first side wall of the corresponding upper suction chamber 20. The first side wall is the side wall connected to the upper suction chamber 20 which is smaller in height than itself.

[0044] The main pipeline 40 is connected to an external negative pressure source, and the air outlets of each branch pipeline 30 are connected to the main pipeline 40.

[0045] Specifically, the structure of the stepped composite chamber dust removal device includes at least two upper suction chambers 20, multiple upper branch pipes 30, and an upper main pipe 40.

[0046] At least two parallel upper suction chambers 20 are positioned above the belt path of the electrode 10. Each upper suction chamber 20 is used to adsorb dust above the electrode 10. To meet the requirements of dust removal efficiency, the air inlets of each upper suction chamber 20 are at the same horizontal height, and the heights of the upper suction chambers 20 are arranged in descending order, with the tallest upper suction chamber 20 located at the front and the heights of subsequent upper suction chambers gradually decreasing. This stepped arrangement allows for more effective adsorption and filtration of dust.

[0047] The first sidewall of each upper suction chamber 20 is a sidewall that connects to the upper suction chamber 20, which is smaller in height than itself. Each upper suction chamber 20 has an air inlet on its first sidewall for connecting to the corresponding upper branch pipe 30. The air inlets of the upper branch pipes 30 correspond one-to-one with the first sidewalls of the upper suction chambers 20. The upper branch pipes 30 can be made of high-temperature resistant and corrosion-resistant metal or plastic pipes to ensure they can withstand negative pressure and suction pressure during operation.

[0048] The air outlets of multiple upper branch pipes 30 are all connected to the upper main pipe 40. The upper main pipe 40 is used to guide the dust airflow collected from each upper suction chamber 20 through the upper branch pipes 30 into an external negative pressure source. The upper main pipe 40 can be constructed of steel pipes or other compliant pipe materials with sufficient strength and durability to ensure stability and effectiveness during long-term use.

[0049] In terms of connection, each upper suction chamber 20 is connected to the corresponding upper branch pipe 30 through an air inlet and a side wall, ensuring that the dust airflow can be smoothly guided from the upper suction chamber 20 to the upper branch pipe 30. The air outlet of the upper branch pipe 30 is connected to the upper main pipe 40, ensuring that the dust is effectively discharged to the external negative pressure source through the upper main pipe 40.

[0050] By adopting the above technical solution, multiple upper suction chambers 20 can be arranged in a stepped manner, thereby effectively improving dust removal efficiency. The height difference and parallel arrangement of each upper suction chamber 20 ensure more uniform airflow, avoiding poor dust removal effect caused by local airflow obstruction. Through the reasonable connection of the upper branch pipe 30 and the upper main pipe 40, dust can be efficiently guided to the external negative pressure source, further improving the stability and working efficiency of the dust removal device. The device has a simple structure and is easy to install and maintain.

[0051] In one embodiment of this application, at least one of the upper suction chambers 20 is provided with an upper chamber cover at the air inlet, and a first slope surface is formed on the upper chamber cover in the direction of material feeding toward the electrode 10, and a suction port 51 is provided on the first slope surface.

[0052] Specifically, in this stepped composite chamber dust collector, at least one upper suction chamber 20 has an upper chamber cover at its air inlet. The upper chamber cover is designed to cover the air inlet of the upper suction chamber 20, preventing external debris from entering the upper suction chamber 20 and effectively guiding airflow to optimize dust adsorption efficiency. The upper chamber cover can be made of corrosion-resistant and high-temperature-resistant materials, such as stainless steel or engineering plastics, to ensure its long-term performance in the working environment.

[0053] The upper cavity cover has a first ramp surface facing the material feeding direction of the electrode 10. The function of this first ramp surface is to effectively guide the airflow entering the upper dust collection cavity 20 as it flows through the air inlet, thereby avoiding airflow turbulence and ensuring that dust can be quickly and evenly drawn into the upper dust collection cavity 20. During the design, the inclination angle of the first ramp surface should be optimized according to factors such as airflow velocity, airflow rate, and dust characteristics to improve the airflow guiding effect.

[0054] A dust suction port 51 is provided on the first slope surface. The dust suction port 51 is used to suck up the dust above the electrode 10 and guide it into the upper dust suction chamber 20. The dust suction port 51 can be designed as multiple small ports or one large port according to actual needs to ensure that the dust above the electrode 10 can be evenly adsorbed. The position of the dust suction port 51 should be reasonably arranged according to the air flow direction to ensure that the dust can be efficiently sucked in and will not cause airflow blockage or uneven dust adsorption.

[0055] By adopting the above technical solution, the combined design of the upper cavity cover, the first inclined surface, and the dust suction port 51 can effectively guide the airflow through the air inlet of the upper dust suction cavity 20, thereby improving the dust adsorption efficiency. The first inclined surface effectively reduces airflow eddies and turbulence, ensuring smooth airflow at the air inlet of the upper dust suction cavity 20, allowing dust to be sucked in more efficiently.

[0056] In one embodiment of this application, a first sealing ring 21 is provided between the upper cavity cover and the upper dust suction cavity 20.

[0057] Specifically, a first sealing ring 21 is provided between the upper cavity cover and the upper dust suction cavity 20. The main function of the first sealing ring 21 is to prevent air or dust leakage, thereby ensuring the sealing performance and high efficiency of the dust removal device. The first sealing ring 21 can be made of rubber or silicone material with good elasticity and high temperature resistance.

[0058] The first sealing ring 21 is disposed between the contact surfaces of the upper chamber cover and the upper suction chamber 20 to ensure a tight seal at the connection between the two. The design of the first sealing ring 21 should be customized according to the size of the upper suction chamber 20 and the shape of the upper chamber cover to ensure that it can effectively fill the tiny gaps between the contact surfaces and prevent any leakage of airflow or dust.

[0059] The first sealing ring 21 is typically installed by creating a groove around the air inlet of the upper suction chamber 20, with the first sealing ring 21 placed inside the groove. This ensures a tight fit between the upper chamber cover and the upper suction chamber 20, preventing air leakage. The first sealing ring 21 can be circular, rectangular, or other suitable shapes, depending on the design requirements of the device.

[0060] By adopting the above technical solution, by setting a first sealing ring 21 between the upper cavity cover and the upper dust suction cavity 20, it can be effectively ensured that there is no airflow leakage during the operation of the device, thereby improving the dust removal efficiency and the stability of the device.

[0061] In one embodiment of this application, the sealing ring is an O-ring.

[0062] Specifically, the sealing ring is an O-ring. O-rings have excellent sealing performance and are particularly suitable for components that require tight contact. O-rings can be made of rubber, silicone, or other high-performance elastic materials with excellent elasticity, high temperature resistance, and corrosion resistance to ensure that they maintain their sealing performance under different working environments.

[0063] During installation, the O-ring is placed in a specific groove around the air inlet of the upper suction chamber 20. The groove is designed to ensure that the O-ring can be fully compressed and form a seal, while preventing slippage or deformation during operation.

[0064] Due to the circular structure of the O-ring seal, it can evenly distribute pressure in multiple directions, forming a uniform sealing effect. This design effectively prevents airflow leakage and ensures a good seal at the connection between the air inlet of the upper suction chamber 20 and the upper chamber cover, thereby improving the overall dust removal efficiency of the dust removal device.

[0065] By using the above technical solution, an O-ring seal can be used between the upper chamber cover and the upper dust suction chamber 20 to effectively prevent airflow or dust leakage, ensuring excellent sealing performance of the device and avoiding a decrease in dust removal efficiency due to air or dust leakage.

[0066] In one embodiment of this application, the upper cavity cover corresponds one-to-one with the upper dust suction cavity 20, and the upper cavity covers are interconnected to form an upper cover body 50, which is integrally formed.

[0067] Specifically, each upper chamber cover corresponds one-to-one with an upper suction chamber 20. Each upper chamber cover covers the air inlet of its corresponding upper suction chamber 20, ensuring an effective seal and guiding dust-laden airflow into the upper suction chamber 20. To ensure structural stability and ease of installation, the upper chamber covers are interconnected to form a single upper cover body 50. This upper cover body 50 is manufactured using a one-piece molding process, resulting in higher strength, stability, and a simpler installation method.

[0068] The upper cover 50 is manufactured using a one-piece molding method, meaning that all the upper cavity covers are molded into a single integral component using a mold. This one-piece molding design not only improves the overall structural strength of the upper cover 50 but also simplifies the assembly of the device. During the manufacturing process of the upper cover 50, high-temperature resistant and corrosion-resistant engineering plastics or metal materials, such as stainless steel, can be selected to ensure its stability and durability during long-term operation.

[0069] Using the above technical solution, the upper cavity cover corresponds one-to-one with the upper dust suction cavity 20 and is connected together by an integrally molded upper cover body 50, which can effectively improve the overall sealing performance and structural stability of the dust removal device. The upper cover body 50, manufactured by an integral molding process, simplifies the assembly process.

[0070] In one embodiment of this application, it further includes:

[0071] At least two parallel lower suction chambers 60 are located below the belt path of the electrode 10 and are used to adsorb dust below the electrode 10. The air inlets of each of the lower suction chambers 60 are at the same horizontal height, and the heights of each of the lower suction chambers 60 are different and are arranged in descending order of height.

[0072] Multiple lower branch pipes 80 correspond one-to-one with each lower suction chamber 60. The air inlet of each lower branch pipe 80 is connected to the second side wall of the corresponding lower suction chamber 60. The second side wall is the side wall connected to the lower suction chamber 60, which is smaller in height than itself.

[0073] The main lower pipeline 90 is connected to an external negative pressure source, and the air outlets of each branch pipeline 80 are connected to the main lower pipeline 90.

[0074] Specifically, it also includes at least two parallel lower suction chambers 60. The lower suction chambers 60 are located below the belt path of the electrode 10 and are used to adsorb dust below the electrode 10. The air inlets of each lower suction chamber 60 are at the same horizontal height, ensuring the uniformity of airflow adsorption during operation. Furthermore, the heights of the lower suction chambers 60 are arranged in descending order, with the tallest lower suction chamber 60 located at the front, and the heights of subsequent lower suction chambers 60 gradually decreasing. This design ensures efficient adsorption of dust below the electrode 10 during dust removal and avoids uneven dust removal effects caused by improper airflow.

[0075] Multiple lower branch pipes 80 correspond one-to-one with each lower suction chamber 60. The air inlet of each lower branch pipe 80 is connected to the second side wall of the corresponding lower suction chamber 60. The second side wall is the side wall that connects to the lower suction chamber 60, which is smaller in height than itself. This design ensures that the lower branch pipes 80 can effectively guide the airflow of dust adsorbed from the lower suction chamber 60 into the lower branch pipes 80, facilitating pipe design and avoiding mutual interference. The lower branch pipes 80 are made of high-temperature and corrosion-resistant materials, such as metal or plastic pipes, to meet the negative pressure and dust adsorption requirements of the working environment.

[0076] The lower main pipe 90 is connected to an external negative pressure source. All outlets of the lower branch pipes 80 are connected to the lower main pipe 90, ensuring that the dust-laden airflow is concentrated and guided to the external negative pressure source for dust treatment and discharge. The structure of the lower main pipe 90 is similar to that of the upper main pipe 40, using corrosion-resistant and high-temperature-resistant pipe materials, possessing sufficient strength and stability to ensure that its performance remains unaffected during long-term use.

[0077] Each lower suction chamber 60 is connected to its corresponding lower branch pipe 80 via an air inlet and a second side wall, ensuring that dust can be smoothly guided from the lower suction chamber 60 to the lower branch pipe 80. The lower branch pipe 80 is connected to the lower main pipe 90, ensuring that the adsorbed dust airflow is guided to an external negative pressure source through the lower main pipe 90. Through this reasonable structural design, dust can be efficiently collected and discharged.

[0078] By adopting the above technical solution, multiple lower suction chambers 60 can be arranged in a stepped manner and cooperate with the lower branch pipes 80 and the lower main pipe 90, thereby effectively improving the dust removal efficiency of the dust removal device. The lower suction chambers 60 are arranged in order of decreasing height, which can ensure that dust is evenly adsorbed in the entire area of ​​the lower suction chambers 60 and guided to the lower main pipe 90 for processing through the lower branch pipes 80.

[0079] In one embodiment of this application, the lower suction chamber 60 is disposed opposite to the upper suction chamber 20.

[0080] Specifically, in this stepped composite chamber dust removal device, the lower suction chamber 60 and the upper suction chamber 20 are arranged opposite to each other. The upper suction chamber 20 is located above the conveyor belt path of the electrode 10 and is used to adsorb dust above the electrode 10; while the lower suction chamber 60 is located below the conveyor belt path of the electrode 10 and is used to adsorb dust below the electrode 10. The relative arrangement of the upper suction chamber 20 and the lower suction chamber 60 ensures that the entire dust removal system can collect dust from the electrode 10 in all directions in the vertical direction, ensuring that dust above and below can be effectively adsorbed, and avoiding situations where local dust is not effectively collected.

[0081] In the specific structural implementation, the height of each lower suction chamber 60 corresponds to that of the upper suction chamber 20, and they are arranged in descending order of height. This stepped design ensures that the airflow within the dust removal area is evenly distributed, reducing airflow resistance and enhancing dust adsorption efficiency. Simultaneously, the arrangement between the two chambers allows for efficient dust removal from both the upper and lower sides without interfering with each other's operation, achieving optimal dust removal results.

[0082] With the above technical solution, the lower dust suction chamber 60 is arranged opposite to the upper dust suction chamber 20, which can ensure that the entire dust removal system covers all dust areas above and below the electrode 10, and achieve all-round dust adsorption.

[0083] In one embodiment of this application, at least one of the lower suction chambers 60 is provided with a lower chamber cover 70 at the air inlet, and at least one first waist-shaped groove 72 is formed on the lower chamber cover 70. The bottom of the first waist-shaped groove 72 is provided with a first through hole connecting the first waist-shaped groove 72 and the lower suction chamber 60.

[0084] Specifically, at least one lower suction chamber 60 has a lower chamber cover 70 at its air inlet. The lower chamber cover 70 covers the air inlet of the lower suction chamber 60 and effectively guides the dust airflow into the lower suction chamber 60. To ensure efficient airflow into the lower suction chamber 60 and improve dust removal efficiency, at least one first waist-shaped groove 72 is formed on the lower chamber cover 70. The first waist-shaped groove 72 is designed as a slot with a specific shape, which increases the airflow guiding area between the lower suction chamber 60 and the lower chamber cover 70, thereby ensuring that more dust can smoothly enter the lower suction chamber 60 and avoiding local blockage and turbulence of airflow.

[0085] The bottom of the first waist-shaped groove 72 is provided with a first through hole connecting the first waist-shaped groove 72 and the lower suction chamber 60. The function of the first through hole is to enable smooth airflow, guiding the dust airflow flowing in from the first waist-shaped groove 72 into the interior of the lower suction chamber 60. Through this design, the airflow can form a good connection between the lower chamber cover 70 and the lower suction chamber 60, avoiding the phenomenon of poor airflow caused by unreasonable local structure.

[0086] The first oblong groove 72 of the lower cavity cover 70 can be formed by molding to ensure the accuracy of the groove's size and shape, so as to ensure that the dust airflow can efficiently enter the lower dust collection cavity 60. The shape and depth of the first oblong groove 72 can be optimized according to specific application requirements to further improve dust adsorption efficiency.

[0087] By adopting the above technical solution, a lower cavity cover 70 is provided at the air inlet of at least one lower dust collection cavity 60, and a first waist-shaped groove 72 is formed on the lower cavity cover 70. A first through hole connecting the first waist-shaped groove 72 and the lower dust collection cavity 60 is provided at the bottom, which can effectively improve the airflow guidance and dust adsorption efficiency.

[0088] In one embodiment of this application, a second sealing ring 61 is provided between the lower cavity cover 70 and the lower dust suction cavity 60.

[0089] Specifically, a second sealing ring 61 is provided between the lower cavity cover 70 and the lower suction cavity 60. The second sealing ring 61 is used to seal the connection gap between the lower cavity cover 70 and the lower suction cavity 60, preventing dust airflow from leaking before entering the lower suction cavity 60, thereby ensuring the sealing performance and dust removal efficiency of the entire dust removal system. The second sealing ring 61 is made of a material with good elasticity, wear resistance, and high temperature resistance.

[0090] The second sealing ring 61 is disposed in a sealing groove around the air inlet of the lower suction chamber 60. The sealing groove is a pre-set annular or rectangular groove in the lower suction chamber 60 or the lower chamber cover 70, used to accommodate the second sealing ring 61 and apply a pressing force to it when the lower chamber cover 70 is installed. Through this structural design, when the lower chamber cover 70 is installed on the lower suction chamber 60, the second sealing ring 61 can be evenly pressed into the sealing groove and fully fit with the upper and lower contact surfaces to form a continuous and stable sealing interface.

[0091] By adopting the above technical solution, by setting a second sealing ring 61 between the lower cavity cover 70 and the lower dust collection cavity 60, the sealing performance of the lower dust collection cavity 60 can be significantly improved, preventing dust or gas leakage at the air inlet, ensuring that the negative pressure suction is concentrated on the dust collection area, thereby improving the dust removal efficiency.

[0092] In one embodiment of this application, a second inclined surface is formed on the lower cavity cover 70 in the direction of material feeding of the electrode 10, and a second waist-shaped groove 71 is provided on the second inclined surface. The bottom of the second waist-shaped groove 71 is provided with a second through hole connecting the second waist-shaped groove 71 and the lower dust suction cavity 60.

[0093] Specifically, a second inclined surface is formed on the lower cavity cover 70 facing the material inlet direction of the electrode 10. The second inclined surface is used to guide the dust airflow from below the electrode 10, causing the dust to flow into the lower suction cavity 60 in a predetermined direction during the flow process, thereby improving the dust adsorption efficiency and avoiding airflow turbulence. The second inclined surface forms an angle relative to the horizontal plane. This angle is optimized according to the belt speed of the electrode 10, the negative pressure suction intensity, and the airflow dynamics characteristics to achieve the best guiding effect.

[0094] A second waist-shaped groove 71 is provided on the second slope surface. The second waist-shaped groove 71 extends along the surface of the second slope surface and has a slender structure, providing a large air intake channel area, which is beneficial to improving the airflow guidance range and dust collection coverage area. The length and width of the second waist-shaped groove 71 are customized according to the size of the lower cavity cover 70 and the corresponding dust suction capacity of the lower suction cavity 60 to ensure that the dust airflow can fully pass through its surface and enter the dust removal system.

[0095] The bottom of the second waist-shaped groove 71 is provided with a second through hole, which is used to connect the second waist-shaped groove 71 with the lower dust collection chamber 60. The second through hole is a plurality of evenly distributed holes or slits, located at a specific position at the bottom of the second waist-shaped groove 71, which can guide the dust airflow collected through the second waist-shaped groove 71 into the interior of the lower dust collection chamber 60.

[0096] By adopting the above technical solution, the lower cavity cover 70 is provided with a second inclined surface facing the material feeding direction of the electrode 10, so that the dust airflow can slide in a predetermined direction and gather in the second waist-shaped groove 71; after the dust is guided by the second waist-shaped groove 71, it is efficiently sucked into the lower dust suction cavity 60 through the second through hole at the bottom, thereby realizing the rapid removal of dust below the electrode 10.

[0097] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A stepped composite cavity dust removal device, characterized in that, include: At least two parallel upper suction chambers are located above the electrode conveyor belt path and are used to adsorb dust on the electrode. The air inlets of each upper suction chamber are at the same horizontal height, and the heights of each upper suction chamber are different and arranged in descending order of height. Multiple upper branch pipes correspond one-to-one with each upper suction chamber. The air inlet of each upper branch pipe is connected to the first side wall of the corresponding upper suction chamber. The first side wall is a side wall connected to an upper suction chamber that is smaller than itself in height. The main pipeline is connected to an external negative pressure source, and the outlets of each branch pipeline are connected to the main pipeline.

2. The stepped composite cavity dust removal device as described in claim 1, characterized in that, At least one of the upper suction chambers has an upper chamber cover at its air inlet, and the upper chamber cover has a first slope surface facing the electrode feeding direction, and a suction port is provided on the first slope surface.

3. The stepped composite cavity dust removal device as described in claim 2, characterized in that, A first sealing ring is provided between the upper cavity cover and the upper dust suction cavity.

4. The stepped composite cavity dust removal device as described in claim 3, characterized in that, The sealing ring is an O-ring.

5. The stepped composite cavity dust removal device as described in claim 2, characterized in that, The upper cavity cover corresponds one-to-one with the upper suction cavity, and the upper cavity covers are connected to each other to form an upper cover body, which is integrally formed.

6. The stepped composite cavity dust removal device as described in any one of claims 1 to 5, characterized in that, Also includes: At least two parallel lower suction chambers are located below the electrode conveyor belt path and are used to adsorb dust below the electrode. The air inlets of each lower suction chamber are at the same horizontal height, and the heights of each lower suction chamber are different and arranged in descending order of height. Multiple lower branch pipes correspond one-to-one with each lower suction chamber. The air inlet of each lower branch pipe is connected to the second side wall of the corresponding lower suction chamber. The second side wall is the side wall connected to the lower suction chamber, which is smaller than itself in height. The main pipeline is connected to an external negative pressure source, and the outlets of each branch pipeline are connected to the main pipeline.

7. The stepped composite cavity dust removal device as described in claim 6, characterized in that, The lower suction chamber is positioned opposite to the upper suction chamber.

8. The stepped composite cavity dust removal device as described in claim 6, characterized in that, At least one of the lower suction chambers has a lower chamber cover at its air inlet, and at least one first waist-shaped groove is formed on the lower chamber cover. The bottom of the first waist-shaped groove has a first through hole that connects the first waist-shaped groove and the lower suction chamber.

9. The stepped composite cavity dust removal device as described in claim 8, characterized in that, A second sealing ring is provided between the lower cavity cover and the lower dust suction cavity.

10. The stepped composite cavity dust removal device as described in claim 8, characterized in that, The lower cavity cover has a second sloping surface facing the electrode feeding direction, and a second waist-shaped groove is provided on the second sloping surface. The bottom of the second waist-shaped groove is provided with a second through hole connecting the second waist-shaped groove and the lower dust collection cavity.

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