Concentrated sulfuric acid filter

Abstract

The utility model relates to the technical field of filters, and discloses a concentrated sulfuric acid filter which comprises a filtering tank, a cover plate is arranged at the top of the filtering tank, a plurality of supporting legs are fixedly connected to the bottom of the filtering tank, a fixing plate is fixedly connected to the inner wall of the filtering tank, and a filtering barrel is connected to the inner wall of the fixing plate in a sliding mode. A filter bag is slidably connected to the inner wall of each filter barrel, a stabilizing assembly is arranged at the top of each filter bag, a vibration assembly is arranged at the bottom of each filter barrel and comprises a plurality of first transmission plates, the first transmission plates are located at the bottoms of the filter barrels, a first fixing frame is fixedly connected to the outer wall of the filter tank, and a second fixing frame is fixedly connected to the outer wall of the filter tank. A motor is fixedly connected into the first fixing frame. According to the concentrated sulfuric acid filtering device, the rotating acting force of the rotating column is converted into linear motion through the first transmission plate, the second transmission plate and the first connecting block, so that the filtering barrel and the filtering bag reciprocate up and down within a certain range, and the filtering speed of the filtering barrel and the filtering bag on concentrated sulfuric acid is increased.

Description

Technical Field

[0001] This utility model relates to the field of filter technology, and in particular to a concentrated sulfuric acid filter. Background Technology

[0002] In industrial production, concentrated sulfuric acid is a widely used chemical raw material, and its quality directly affects many production stages. In numerous processes involving concentrated sulfuric acid, efficient and pure filtration is a crucial step, impacting product quality, equipment lifespan, and the smoothness of the production process. Concentrated sulfuric acid filters are one of the core pieces of equipment ensuring that concentrated sulfuric acid reaches the required purity for production, and their performance plays a pivotal role in the entire industrial production system.

[0003] Currently, most common concentrated sulfuric acid filters employ a relatively simple design. Typically, filter components, such as filter bags and screens, are fixedly installed within a static filter container. During filtration, concentrated sulfuric acid passes through the filter media from top to bottom or from the outside to the inside, relying on gravity or simple pump pressure. Its technical principle is primarily based on the filter media's ability to intercept impurities of different particle sizes. Large particles are blocked on the surface of the filter media, while the suitable concentrated sulfuric acid flows through, thus achieving solid-liquid separation.

[0004] However, this traditional filtration method has significant drawbacks. When filtering concentrated sulfuric acid, both the sulfuric acid and the filter components are in a relatively static state, allowing impurities to gradually accumulate on the surface of the filter medium, forming a filter cake layer. As time progresses, this filter cake layer thickens, creating significant resistance to the flow of concentrated sulfuric acid, leading to a gradual slowdown in filtration speed and consequently, a longer filtration time. This not only reduces production efficiency but also increases energy consumption per unit time, negatively impacting cost control and efficient operation of the entire production process. Therefore, a concentrated sulfuric acid filter is proposed to address these issues. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a concentrated sulfuric acid filter, which aims to improve the problem that in the traditional equipment, both the concentrated sulfuric acid and the filter components are in a relatively static state during the filtration process, which easily leads to a long filtration time.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A concentrated sulfuric acid filter includes a filter tank, a cover plate on the top of the filter tank, multiple support feet fixedly connected to the bottom of the filter tank, a fixing plate fixedly connected to the inner wall of the filter tank, a filter bucket slidably connected to the inner wall of the fixing plate, a filter bag slidably connected to the inner wall of each filter bucket, a stabilizing component on the top of the filter bag, and a vibration component on the bottom of the multiple filter buckets.

[0008] The vibration assembly includes multiple transmission plates, which are located at the bottom of the filter tank. A fixing frame is fixedly connected to the outer wall of the filter tank. A motor is fixedly connected inside the fixing frame. The output end of the motor is located inside the filter tank. A rotating column is fixedly connected to the output end of the motor. One end of the rotating column is rotatably connected to the inside of the filter tank. The outer wall of the rotating column is fixedly connected to the inner wall of the multiple transmission plates. A transmission assembly is provided on the outer wall of the transmission plates.

[0009] As a further description of the above technical solution:

[0010] The transmission assembly includes multiple transmission plates II, each of which is rotatably connected to the interior of a transmission plate I. A connecting block I is rotatably connected inside each of the multiple transmission plates II. A connecting plate I is fixedly connected to the top of the multiple connecting blocks I. The connecting plate I is in contact with the inner wall of the filter tank. The inner wall of the connecting plate I is fixedly connected to the outer wall of the multiple filter barrels.

[0011] As a further description of the above technical solution:

[0012] The stabilizing component includes multiple locking posts located on the top of the filter bag, and each filter bag has a connecting plate on its top.

[0013] As a further description of the above technical solution:

[0014] Each of the connecting plates 2 is provided with multiple springs 2 at its top, and a connecting plate 3 is fixedly connected to the top of each spring 2 on each side, and the bottom of each spring 2 on each side is fixedly connected to the top of the connecting plate 2.

[0015] As a further description of the above technical solution:

[0016] The top of the fixed plate is fixedly connected to multiple fixed brackets 2, and both sides of each of the connecting plates 3 are in contact with the inner wall of the fixed bracket 2.

[0017] As a further description of the above technical solution:

[0018] Each of the two fixed frames is fixedly connected to a fixed shell at its top. Each fixed shell is slidably connected to a transmission column on its inner wall. Each transmission column is rotatably connected to a rotating shaft. Each rotating shaft is rotatably connected to a connecting block two. The connecting block two is in contact with the fixed shell.

[0019] As a further description of the above technical solution:

[0020] Each of the transmission columns is fixedly connected to a locking pin at one end, and the locking pin extends through to the outside of the fixing frame two, and each locking pin engages with the inside of the connecting plate three.

[0021] As a further description of the above technical solution:

[0022] Each of the transmission columns is provided with a spring on its outer wall. One end of each spring is fixedly connected to the top of the inner wall of the fixed shell, and the other end of each spring is fixedly connected to the top of the locking column.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, the rotational force of the rotating column is converted into linear motion through transmission plate one, transmission plate two and connecting block one, so that the filter barrel and filter bag can move up and down in a certain range, thereby accelerating the filtration speed of concentrated sulfuric acid by the filter barrel and filter bag. This solves the problem that in traditional equipment, the concentrated sulfuric acid and the filter components are in a relatively static state during the filtration process, which easily leads to a long filtration time, and improves the filtration efficiency of the equipment for concentrated sulfuric acid.

[0025] 2. In this utility model, the positions of connecting plate three and connecting plate two are fixed by the engagement of the locking post with the inside of connecting plate three, ensuring that connecting plate two constantly presses and fixes the positions of the filter barrel and filter bag, thus achieving the fixing effect of connecting plate three. This solves the problem that when concentrated sulfuric acid washes the inner wall of the filter bag, the scouring force can easily cause connecting plate three to separate from the inner wall of fixing frame two, making it difficult to fix the positions of the filter barrel and filter bag, and enhances the fixing effect of the equipment on the position of connecting plate two. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of a concentrated sulfuric acid filter proposed in this utility model;

[0027] Figure 2 This is a schematic diagram of the internal structure of the filter tank of a concentrated sulfuric acid filter proposed in this utility model;

[0028] Figure 3 This is a schematic diagram of the connecting plate structure of a concentrated sulfuric acid filter proposed in this utility model;

[0029] Figure 4This is a schematic diagram of the three-structure connection plate of a concentrated sulfuric acid filter proposed in this utility model;

[0030] Figure 5 This is a schematic cross-sectional view of the fixed shell structure of a concentrated sulfuric acid filter proposed in this utility model.

[0031] Legend:

[0032] 1. Filter tank; 2. Cover plate; 3. Support foot; 4. Fixing plate; 5. Filter barrel; 6. Connecting plate one; 7. Fixing frame one; 8. Motor; 9. Rotating column; 10. Transmission plate one; 11. Transmission plate two; 12. Connecting block one; 13. Spring one; 14. Clamping post; 15. Filter bag; 16. Connecting plate two; 17. Spring two; 18. Connecting plate three; 19. Fixing frame two; 20. Fixing shell; 21. Connecting block two; 22. Rotating shaft; 23. Transmission column. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Reference Figures 1-3 An embodiment of this utility model is provided: a concentrated sulfuric acid filter, including a filter tank 1, a cover plate 2 provided on the top of the filter tank 1, a plurality of support feet 3 fixedly connected to the bottom of the filter tank 1, a fixing plate 4 fixedly connected to the inner wall of the filter tank 1, a filter bucket 5 slidably connected to the inner wall of the fixing plate 4, a filter bag 15 slidably connected to the inner wall of each filter bucket 5, a stabilizing component provided on the top of the filter bag 15, and a vibration component provided at the bottom of the plurality of filter buckets 5;

[0035] The vibration assembly includes multiple transmission plates 10 located at the bottom of the filter tank 5. These plates transmit the rotational force generated by the motor 8 and drive the filter tank 5 to vibrate. A fixed frame 7 is fixedly connected to the outer wall of the filter tank 1. A motor 8 is fixedly connected inside the fixed frame 7. The motor 8 serves as a power source, with its output end located inside the filter tank 1, driving the rotating column 9 to rotate. The output end of the motor 8 is fixedly connected to the rotating column 9, one end of which is rotatably connected inside the filter tank 1, providing support and transmitting power. The outer wall of the rotating column 9 is fixedly connected to the inner wall of the multiple transmission plates 10. A transmission assembly is provided on the outer wall of the transmission plates 10 to convert the rotational motion into reciprocating motion. The assembly includes multiple transmission plates 2 11, each of which is rotatably connected inside the transmission plate 1 10 to transmit the rotational force of the rotating column 9 to the connecting block 1 12. Each transmission plate 2 11 is rotatably connected to the connecting block 1 12, which serves as a connector between the transmission plate 2 11 and the connecting plate 1 6 to transmit motion to the connecting plate 1 6. The connecting plate 1 6 is fixedly connected to the top of the multiple connecting blocks 1 12. The connecting plate 1 6 fits against the inner wall of the filter tank 1 to limit and drive the filter barrel 5 to reciprocate up and down. The inner wall of the connecting plate 1 6 is fixedly connected to the outer wall of the multiple filter barrels 5. The movement of the connecting plate 1 6 causes the filter barrel 5 to vibrate, thereby accelerating the filtration process.

[0036] Specifically, in the process of filtering concentrated sulfuric acid, the concentrated sulfuric acid is first filtered in multiple layers using connecting plate 16 and filter barrel 5 to ensure that the filtration effect meets the process requirements. Then, motor 8 is started, and the output end of motor 8 drives the transmission plate 10 on the outer wall of rotating column 9 to rotate. The rotational force is transmitted to transmission plate 11 through transmission plate 10, which in turn drives the connecting plate 6 on the top of connecting block 12 to move up and down in a certain range. Since the inner wall of filter barrel 1 is in close contact with the outer wall of connecting plate 6, the inner wall of filter barrel 1 effectively limits the movement direction of connecting plate 6, ensuring the stability of its movement trajectory. Driven by connecting plate 6, filter barrel 5 and filter bag 15 move up and down synchronously. During this process, the elasticity of spring 17 provides the necessary space for filter barrel 5 and filter bag 15 to move freely within a limited range. This vibration not only effectively prevents the filter medium from being blocked due to the high viscosity of concentrated sulfuric acid, but also significantly accelerates the rate at which concentrated sulfuric acid passes through filter barrel 5 and filter bag 15.

[0037] Reference Figures 4-5The stabilizing assembly includes multiple locking posts 14 located on top of the filter bag 15 to secure the filter bag 15 and prevent displacement. Each filter bag 15 has a connecting plate 2 16 at its top, serving as a connector between the filter bag 15 and spring 2 17 for pressure transmission. Each connecting plate 2 16 also has multiple spring 2 17s at its top, providing elastic support and cushioning vibrations during filtration. A connecting plate 3 18 is fixedly connected to the top of each spring 2 17 on each side, connecting the springs. Spring 17 and fixed bracket 19 ensure the stability of the overall structure. The bottom of each spring 17 is fixedly connected to the top of the connecting plate 16. Multiple fixed brackets 19 are fixedly connected to the top of the fixed plate 4. The fixed brackets 19 support and limit the connecting plate 18. Both sides of each connecting plate 18 are in contact with the inner wall of the fixed bracket 19 to limit the range of motion of the connecting plate 18 and ensure its vertical movement. A fixed shell 20 is fixedly connected to the top of each fixed bracket 19. The fixed shell 20 is used to accommodate the transmission column 23 and provide a sliding track. Each fixed shell 20 has a slidingly connected transmission column 23 on its inner wall. The transmission column 23 transmits the rotational force of the connecting block 21 and drives the locking column 14 to move. Each transmission column 23 has a rotating shaft 22 inside, which converts the rotational motion of the connecting block 21 into the linear motion of the transmission column 23. Each rotating shaft 22 has a rotatingly connected connecting block 21 inside, which fits against the fixed shell 20 to transmit rotational force and ensure the smoothness of movement. Each transmission column 23 has a locking column 14 fixedly connected to one end, which extends through the shell. Extending to the outside of the fixing frame 219, it is used to lock the position of the connecting plate 318. Each locking post 14 engages with the inside of the connecting plate 318 to ensure that the connecting plate 318 will not come off due to vibration during the filtration process. Each transmission post 23 is provided with a spring 13 on its outer wall. The spring 13 is used to provide a reset force and ensure the flexible movement of the locking post 14. One end of each spring 13 is fixedly connected to the top of the inner wall of the fixing shell 20, and the other end of each spring 13 is fixedly connected to the top of the locking post 14 to maintain the stability and reset function of the locking post 14.

[0038] Specifically, during the installation of the filter barrel 5 and filter bag 15, firstly, accurately insert the filter barrel 5 and filter bag 15 into the designated positions inside the filter tank 1. Then, place the connecting plate 26 stably on top of the filter bag 15, ensuring it is completely flush with the upper end of the filter bag 15. Next, rotate the connecting block 21 clockwise. Because the rotating shaft 22 is located at the eccentric position of the center point of the connecting block 21, the rotating shaft 22 will push the locking pin 14 at one end of the transmission column 23 to slide along a predetermined trajectory on the inner wall of the fixed shell 20, simultaneously causing the spring 13 to be moderately compressed. After completing the above steps, apply downward and even force to press the connecting plate 3 18, causing the spring 2 17 to compress and deform. At the same time, the elastic restoring force of spring 17 is used to apply uniform axial pressure to filter barrel 5 and filter bag 15 to achieve initial fixation. Then, the connecting plate 18 is rotated clockwise to move it accurately to the predetermined position at the top of the inner wall of the two fixing frames 19. Finally, the connecting block 21 is rotated counterclockwise, and the locking pin 14 at one end of the transmission column 23 is pushed by the rotating shaft 22 to accurately engage in the locking groove inside the connecting plate 18, forming a reliable mechanical lock. This double fixing mechanism effectively prevents the connecting plate 18 from accidentally detaching from the inner wall of the fixing frame 19 due to water flow impact, and improves the stability and safety of filter barrel 5 and filter bag 15 during operation.

[0039] Working principle: During the installation of the filter barrel 5 and filter bag 15, the filter barrel 5 and filter bag 15 are inserted into the filter tank 1. Then, the connecting plate 26 is placed on top of the filter bag 15. Then, the connecting block 21 is rotated. Since the rotating shaft 22 is on one side of the center point of the connecting block 21, the rotating shaft 22 pushes the locking pin 14 at one end of the transmission column 23 to slide on the inner wall of the fixed shell 20, and compresses the spring 13. Next, the connecting plate 318 is pressed down, which compresses the spring 27. The rebound force of the second 17 presses and fixes the filter barrel 5 and filter bag 15. Then, the connecting plate 3 18 is rotated to move the connecting plate 3 18 to the top of the inner wall of the two fixing frames 2 19 on both sides. Then, the connecting block 21 is rotated in the opposite direction, and the locking pin 14 at one end of the transmission column 23 is pushed by the rotating shaft 22 to lock into the inside of the connecting plate 3 18. This ensures that the connecting plate 3 18 will not be accidentally separated from the inner wall of the fixing frame 2 19 due to the flushing of water flow, thus enhancing the stability of the filter barrel 5 and filter bag 15 during use.

[0040] During the filtration of concentrated sulfuric acid, the connecting plate 16 and filter barrel 5 are used for multi-layer filtration. Then, the motor 8 is started, and the output end of the motor 8 drives the transmission plate 10 on the outer wall of the rotating column 9 to rotate. This rotational force is transmitted through the transmission plate 11 to drive the connecting plate 6 on the top of the connecting block 12 to move up and down in a certain range. Since the inner wall of the filter tank 1 is in contact with the outer wall of the connecting plate 6, the inner wall of the filter tank 1 limits the movement direction of the connecting plate 6. While moving, the connecting plate 6 drives the filter barrel 5 and filter bag 15 to move up and down in a certain range. The elasticity of the spring 17 provides room for the movement of the filter barrel 5 and filter bag 15. The vibration of the filter barrel 5 and filter bag 15 in a certain range accelerates the filtration of concentrated sulfuric acid and improves the filtration efficiency of the equipment.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A concentrated sulfuric acid filter, comprising a filter tank (1), characterized in that: The filter tank (1) is provided with a cover plate (2) on the top, and multiple support feet (3) are fixedly connected to the bottom of the filter tank (1). A fixing plate (4) is fixedly connected to the inner wall of the filter tank (1). A filter bucket (5) is slidably connected to the inner wall of the fixing plate (4). A filter bag (15) is slidably connected to the inner wall of each filter bucket (5). A stabilizing component is provided on the top of the filter bag (15). A vibration component is provided at the bottom of multiple filter buckets (5). The vibration assembly includes multiple transmission plates (10), which are located at the bottom of the filter tank (5). A fixing frame (7) is fixedly connected to the outer wall of the filter tank (1). A motor (8) is fixedly connected inside the fixing frame (7). The output end of the motor (8) is located inside the filter tank (1). A rotating column (9) is fixedly connected to the output end of the motor (8). One end of the rotating column (9) is rotatably connected to the inside of the filter tank (1). The outer wall of the rotating column (9) is fixedly connected to the inner wall of the multiple transmission plates (10). A transmission assembly is provided on the outer wall of the transmission plates (10).

2. A concentrated sulfuric acid filter according to claim 1, characterized in that: The transmission assembly includes multiple transmission plates two (11), each of which is rotatably connected inside the transmission plate one (10). Each of the transmission plates two (11) is rotatably connected to a connecting block one (12). A connecting plate one (6) is fixedly connected to the top of the multiple connecting blocks one (12). The connecting plate one (6) is in contact with the inner wall of the filter tank (1), and the inner wall of the connecting plate one (6) is fixedly connected to the outer wall of the multiple filter barrels (5).

3. A concentrated sulfuric acid filter according to claim 1, characterized in that: The stabilizing component includes multiple locking posts (14) located on the top of the filter bag (15), and each filter bag (15) is provided with a connecting plate (16) on its top.

4. A concentrated sulfuric acid filter according to claim 3, characterized in that: Each of the connecting plates 2 (16) is provided with a plurality of springs 2 (17) at its top. Each side of the springs 2 (17) is fixedly connected to the top of the connecting plate 3 (18). Each side of the springs 2 (17) is fixedly connected to the bottom of the connecting plate 2 (16) at its top.

5. A concentrated sulfuric acid filter according to claim 4, characterized in that: The top of the fixed plate (4) is fixedly connected to multiple fixed brackets (19), and both sides of each of the connecting plates (18) are in contact with the inner wall of the fixed bracket (19).

6. A concentrated sulfuric acid filter according to claim 5, characterized in that: Each of the two fixed frames (19) is fixedly connected to a fixed shell (20) at its top. Each of the two fixed shells (20) is slidably connected to a transmission column (23) on its inner wall. Each of the two transmission columns (23) is rotatably connected to a rotating shaft (22). Each of the two rotating shafts (22) is rotatably connected to a connecting block (21). The connecting block (21) is in contact with the fixed shell (20).

7. A concentrated sulfuric acid filter according to claim 6, characterized in that: Each of the transmission columns (23) is fixedly connected to a locking post (14) at one end. The locking post (14) extends through to the outside of the fixing frame two (19). Each locking post (14) engages with the inside of the connecting plate three (18).

8. A concentrated sulfuric acid filter according to claim 7, characterized in that: Each of the transmission columns (23) is provided with a spring (13) on its outer wall. One end of each spring (13) is fixedly connected to the top of the inner wall of the fixed shell (20), and the other end of each spring (13) is fixedly connected to the top of the locking column (14).

Images