Filtering device for electrolytic cell gas supply system

Abstract

The application discloses an electrolytic cell air supply system filtering device, which comprises an air supply tank, a plurality of air inlets are arranged at the lower part of the air supply tank, and the air inlets are used for providing air sources for air compressors; support columns are arranged at the corners of the bottom of the air supply tank, the support columns are used for lifting the air inlets away from the ground, passages are formed between the support columns, sieve plates are arranged at the passages, the sieve plates completely cover the passages, movable plates are arranged above the sieve plates, the movable plates are connected with driving assemblies of side walls of the air supply tank, and scrapers are arranged at the bottom of the movable plates; the driving assemblies are used for driving the movable plates to move, so that the scrapers at the bottom of the movable plates are in contact with the outer surfaces of the sieve plates; the sieve plates are used for pre-filtering air entering the air supply tank, so that the impurity content in the air entering the air supply tank is reduced, the working burden of filtering devices in the air supply tank is reduced, the impurities adhering to the sieve plates are scraped off by the movable plates moving downward, and the permeability of the sieve plates is improved.

Description

Technical Field

[0001] This utility model belongs to the field of gas supply system technology, and specifically relates to a filtration device for an electrolytic cell gas supply system. Background Technology

[0002] The air supply system for electrolytic cells used in electrolytic aluminum production is usually supplied by a large air compressor. Its air intake filtration system is mostly installed outdoors and directly exposed to the natural environment. In environments with many impurities such as sand and dust, and flying fluff, particulate matter easily accumulates on the surface of the filter screen, which leads to increased pressure difference and decreased air intake efficiency. Frequent cleaning or replacement is required, and the maintenance cycle is short, which affects the continuous operation of the air compressor and thus reduces the production efficiency and output of electrolytic aluminum. Utility Model Content

[0003] This application proposes a filtration device for an electrolytic cell gas supply system, which pre-filters the air entering the gas supply box to reduce the amount of impurities in the air entering the gas supply box, thereby reducing the workload of the filtration device in the gas supply box.

[0004] To achieve the above objectives, this utility model provides the following technical solution: A filtration device for an electrolytic cell gas supply system includes a gas supply box with multiple air inlets at the bottom for supplying gas to an air compressor. Support columns are provided at the corners of the bottom of the gas supply box to lift the air inlets off the ground. An opening is formed between the support columns, and a sieve plate is provided at the opening to completely cover it. A movable plate is provided above the sieve plate. The movable plate is connected to the drive assembly of the side wall of the air supply box. A scraper is provided at the bottom of the movable plate. The drive assembly is used to drive the movable plate to move so that the scraper at the bottom of the movable plate contacts the outer surface of the sieve plate.

[0005] In one embodiment of this application, the drive assembly includes a telescopic rod disposed above the sieve plate, and the telescopic end of the telescopic rod is connected to the upper surface of the movable plate.

[0006] In one embodiment of this application, guide rods are connected to the upper parts of both ends of the movable plate, and guide blocks are provided on the side wall of the air supply box, with the guide rods passing through the guide holes of the guide blocks.

[0007] In one embodiment of this application, a base platform is provided at the lower end of the support column.

[0008] In one embodiment of this application, a receiving groove is provided on the upper surface of the base platform. The receiving groove is located at the lower part of the sieve plate and is used to receive the attached impurities scraped off the sieve plate.

[0009] In one embodiment of this application, a support rod is provided between the support columns, and the support rod is used to support the middle part of the screen plate between the support columns.

[0010] In one embodiment of this application, a baffle is provided on the upper part of the gas supply box.

[0011] In summary, the technical solution proposed in this application includes the following beneficial technical effects: This application pre-filters the air entering the air supply box through a sieve plate to reduce the amount of impurities contained in the air entering the air supply box, thereby reducing the workload of the filter device in the air supply box. In addition, it can prevent large-volume impurities from being sucked into the air supply box, causing blockage of the air supply box or damage to the air supply box filtration system, extending the cleaning and maintenance cycle of the air supply box, and improving the working efficiency of the equipment. The movable plate is connected to the drive assembly, and a scraper is provided at the bottom of the movable plate. The drive assembly pushes the movable plate down so that the scraper contacts the outer surface of the sieve plate. The downward movement of the movable plate scrapes off the impurities attached to the sieve plate to increase the permeability of the sieve plate. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 A three-dimensional structural schematic diagram of a filtration device for an electrolytic cell gas supply system provided in an embodiment of this application; Figure 2 This is a bottom view of the filter device of the gas supply system for an electrolytic cell provided in an embodiment of this application; Figure 3 This is a side view of the filter device of the gas supply system for an electrolytic cell provided in an embodiment of this application; Figure 4 A three-dimensional structural schematic diagram of the filtration device for the gas supply system of an electrolytic cell provided in an embodiment of this application.

[0014] In the diagram: air supply box 1, air inlet 11; Support column 2, through port 21, support rod 22, sieve plate 211, movable plate 212, scraper 213; Telescopic pole 3; Guide rod 4, guide block 41; Base platform 5, receiving slot 51; 6. Blind plate. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application are described clearly and completely below. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are also within the scope of protection of this application.

[0016] It should be noted that in the description of this application, the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0017] In this application, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art will understand the specific meaning of these terms in this application based on the specific circumstances.

[0018] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0019] This embodiment provides a filtration device for an electrolytic cell gas supply system, see reference. Figures 1-4 As shown, the device includes an air supply box 1, which has multiple air inlets 11 at its lower part. The air inlets 11 are used to supply air to the air compressor. Support columns 2 are provided at the bottom corners of the air supply box 1. The support columns 2 are used to lift the air inlets 11 off the ground. An opening 21 is formed between the support columns 2. A sieve plate 211 is provided at the opening 21, and the sieve plate 211 completely covers the opening 21. A movable plate 212 is provided above the sieve plate 211. The movable plate 212 is connected to the drive assembly of the side wall of the air supply box 1. A scraper 213 is provided at the bottom of the movable plate 212. The drive assembly is used to drive the movable plate 212 to move so that the scraper 213 at the bottom of the movable plate 212 contacts the outer surface of the sieve plate 211.

[0020] In the above embodiment, the lower part of the air supply box 1 is provided with multiple air inlets 11 for supplying air to the air compressor. Support columns 2 are provided at the bottom corners of the air supply box 1 to support the air inlets 11 off the ground, so that external air can enter the air inlets 11 through the openings 21 between the support columns 2. A sieve plate 211 is provided at the openings 21 to prevent large particles or impurities from being sucked into the air inlets 11 of the air supply box 1, so as to avoid pollution or blockage in the air supply box 1, thereby reducing the maintenance cycle of the air supply system. During maintenance, the efficiency of electrolytic aluminum production is affected, and the output of electrolytic aluminum is reduced. Furthermore, a movable plate 212 is provided above the sieve plate 211. The movable plate 212 is connected to the drive assembly, and a scraper 213 is provided at the bottom of the movable plate 212. The drive assembly pushes the movable plate 212 downward so that the scraper 213 contacts the outer surface of the sieve plate 211. The downward movement of the movable plate 212 scrapes off the impurities attached to the sieve plate 211, thereby increasing the permeability of the sieve plate 211. The air entering the air supply box 1 is pre-filtered through the sieve plate 211 to reduce the amount of impurities contained in the air entering the air supply box 1, thereby reducing the workload of the filter device in the air supply box 1. In addition, it can prevent large-volume impurities from being sucked into the air supply box 1, causing blockage of the air supply box 1 or damage to the filter system of the air supply box 1, extending the cleaning and maintenance cycle of the air supply box 1, and improving the working efficiency of the equipment.

[0021] In one embodiment of this application, see [reference] Figure 1 As shown, the driving assembly includes a telescopic rod 3, which is positioned above the sieve plate 211, and the telescopic end of the telescopic rod 3 is connected to the upper surface of the movable plate 212.

[0022] In the above embodiment, the extension and retraction of the telescopic end allows the movable plate 212 to move downward, driving the scraper 213 to scrape away the impurities attached to the sieve plate 211. Then, the movable plate 212 is retracted to above the sieve plate 211, preventing it from remaining on the outer side of the sieve plate 211 and blocking air entry, thus improving the air intake efficiency of the sieve plate 211. Optionally, the telescopic rod 3 is an electric push rod, fixed to the side wall of the air supply box 1 by a mounting bracket and positioned above the sieve plate 211. The telescopic end of the push rod extends downward. The electric telescopic rod 3 is electrically connected to the PLC control cabinet. After receiving a command, the electric push rod extends its telescopic end downward, driving the scraper 213 to complete one complete scraping stroke, and then retracts, causing the movable plate 212 to reset.

[0023] In one embodiment of this application, see [reference] Figure 2 or Figure 3 As shown, guide rods 4 are connected to the upper parts of both ends of the movable plate 212, and guide blocks 41 are provided on the side wall of the air supply box 1. The guide rods 4 pass through the guide holes of the guide blocks 41.

[0024] In the above embodiment, the guide rod 4 is used to restrict the vertical movement of the movable plate 212, preventing the movable plate 212 from tilting or shifting when encountering resistance during movement, and preventing the scraper 213 from abrading the sieve plate 211 due to angular deviation. This protects the surface of the sieve plate 211 and ensures the uniformity of the scraping effect. That is, when the telescopic rod 3 pushes the movable plate 212, the guide rod 4 slides smoothly up and down in the guide hole, constraining the degree of freedom of movement of the movable plate 212 in the horizontal direction, thus restricting the movement trajectory of the movable plate 212 to the vertical direction.

[0025] In one embodiment of this application, see [reference] Figure 3 As shown, a base platform 5 is provided at the lower end of the support column 2, and the base platform 5 is used to elevate the sieve plate 211.

[0026] In the above embodiment, the inlet 21 is further raised off the ground by the base platform 5, which increases the difficulty of water intake and prevents ground water, rain splash, snow melting and other substances from being sucked into the system through the screen plate 211. This reduces the risk of short circuit failure of internal components (such as motors and sensors) of the air supply box 1 due to moisture and improves the adaptability of the system in severe weather.

[0027] In one embodiment of this application, see [reference] Figure 3 As shown, the upper surface of the base 5 is provided with a receiving groove 51, which is located at the lower part of the sieve plate 211 and is used to receive the attached impurities scraped off the sieve plate 211.

[0028] In the above embodiment, the receiving groove 51 is set at the lower part of the sieve plate 211 to receive the attached impurities scraped off the sieve plate 211. This avoids the scraped impurities from scattering everywhere and causing secondary pollution or being re-absorbed onto the sieve plate 211 by the airflow. It achieves the initial collection of impurities. Cleaning personnel only need to clean the receiving groove 51 periodically, which simplifies the maintenance process and improves maintenance efficiency.

[0029] In one embodiment of this application, see [reference] Figure 4 As shown, a support rod 22 is provided between the support columns 2, and the support rod 22 is used to support the middle part of the screen plate 211 between the support columns 2.

[0030] In the above embodiment, the sieve plate 211 will be subjected to negative pressure under the suction force of the air compressor, which is prone to bending and deformation. The support rod 22 supports the sieve plate 211, which improves the compressive strength and overall structural stability of the sieve plate 211. In addition, it prevents the sieve plate 211 from deforming and creating a gap between it and the scraper 213, so that the scraping action of the scraper 213 can contact the surface of the sieve plate 211, ensuring the consistency of the cleaning effect.

[0031] In one embodiment of this application, see [reference] Figure 4 As shown, a baffle plate 6 is provided on the upper part of the air supply box 1.

[0032] In the above embodiments, rainwater is prevented from flowing along the box wall to key parts such as the telescopic rod 3 and the sieve plate 211 below, reducing the risk of components rusting, corroding, and jamming due to long-term rain exposure, and improving the durability and environmental adaptability of the entire device.

[0033] In actual use, the electrolytic cell gas supply system filtration device of this application includes a cubic gas supply box 1, with multiple sets of air inlets 11 at the bottom. At each of the four corners of the box bottom is a support column 2 with a height of 40cm to 60cm, and a square base 5 is provided at the bottom of the column. Stainless steel sieve plates 211 are installed between the support columns 2, and the sieve plates 211 are detachably connected to the support columns 2. The sieve holes have a diameter of 3mm to 5mm and are used to intercept foreign objects such as leaves, insects, large dust particles, and flying fluff.

[0034] A movable plate 212 that can be raised and lowered is installed above the sieve plate 211, and a rubber scraper 213 is embedded at its bottom. The movable plate 212 is connected to the guide block 41 on the side wall of the box by two guide rods 4 to ensure vertical movement. The driving component is an electric telescopic rod 3, which is installed on the outside of the air supply box 1, and the telescopic end of the electric telescopic rod 3 is connected to the movable plate 212.

[0035] An annular receiving groove 51 is provided on the base platform 5, located directly below the sieve plate 211, to collect scraped-off impurities. Support rods 22 are also welded between the support columns 2 to reinforce the support in the middle of the sieve plate 211. An inclined aluminum alloy baffle 6 is installed on the top of the air supply box 1 to prevent rainwater from flowing down the box body.

[0036] During operation, the air compressor starts to draw in air, and the airflow enters the air supply box 1 after preliminary filtration through the screen plate 211. Every certain period of time (such as 4 to 8 hours), the electric telescopic rod 3 automatically starts, pushing the movable plate 212 down, and the scraper 213 cleans the adhering substances on the surface of the screen plate 211. The impurities fall into the receiving tank 51, which facilitates the centralized cleaning of impurities during maintenance.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A filtration device for an electrolytic cell gas supply system, characterized in that, The system includes an air supply box (1), which has multiple air inlets (11) at its lower part. The air inlets (11) are used to supply air to the air compressor. Support columns (2) are provided at the bottom corners of the air supply box (1). The support columns (2) are used to lift the air inlets (11) off the ground. A passage (21) is formed between the support columns (2). A sieve plate (211) is provided at the passage (21). The sieve plate (211) completely covers the passage (21). A movable plate (212) is provided above the sieve plate (211). The movable plate (212) is connected to the drive assembly on the side wall of the air supply box (1). A scraper (213) is provided at the bottom of the movable plate (212). The drive assembly is used to drive the movable plate (212) to move so that the scraper (213) at the bottom of the movable plate (212) contacts the outer surface of the sieve plate (211).

2. The filtration device for the gas supply system of the electrolytic cell according to claim 1, characterized in that, The drive assembly includes a telescopic rod (3), which is positioned above the sieve plate (211), and the telescopic end of the telescopic rod (3) is connected to the upper surface of the movable plate (212).

3. The filtration device for the gas supply system of the electrolytic cell according to claim 1, characterized in that, The upper part of both ends of the movable plate (212) is connected to guide rods (4), and the side wall of the air supply box (1) is provided with guide blocks (41). The guide rods (4) pass through the guide holes of the guide blocks (41).

4. The filtration device for the gas supply system of the electrolytic cell according to claim 1, characterized in that, The lower end of the support column (2) is provided with a base platform (5).

5. The filtration device for the gas supply system of the electrolytic cell according to claim 4, characterized in that, The upper surface of the base (5) is provided with a receiving groove (51), which is located at the lower part of the sieve plate (211) and is used to receive the attached impurities scraped off the sieve plate (211).

6. The filtration device for the gas supply system of the electrolytic cell according to claim 1, characterized in that, A support rod (22) is provided between the support columns (2), and the support rod (22) is used to support the middle part of the sieve plate (211) between the support columns (2).

7. The filtration device for the gas supply system of the electrolytic cell according to any one of claims 1-6, characterized in that, A baffle plate (6) is provided on the upper part of the gas supply box (1).

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