Anti-settling chemical temporary storage tank

Abstract

The utility model discloses a kind of anti-deposition chemical temporary storage tanks, including main tank body, the bottom sealing compression of main tank body has lower tank body, the outer surface of lower tank body both sides is equipped with the spline sleeve that is penetrated to inside, the outer surface one side of lower tank body is fixedly installed with first motor, and the drive end of first motor is fixedly connected with adjacent spline sleeve;Two described spline sleeve between being equipped with assembly shaft.In the utility model, using the separable sealing compression structure design of main tank body and lower tank body, by screw rod lifting mechanism realizes quick dismounting, so that cleaning scraper maintenance does not need to disassemble stirring mechanism;Innovative spline sleeve and elastic axle quick release transmission mechanism, while ensuring power transmission, only need simple operation to complete the overall replacement of cleaning assembly;Modular cleaning assembly design, cleaning scraper, push rod and assembly shaft are integrated into the independent unit that can be integrally disassembled, significantly simplify replacement process.

Description

Technical Field

[0001] This utility model relates to the field of chemical storage tank technology, and in particular to a chemical storage tank that prevents sedimentation. Background Technology

[0002] Liquid bismaleimide (BMI) requires temporary storage tanks in chemical production processes, primarily for short-term storage, temperature control, process integration, and safety protection. Because liquid BMI may be heat-sensitive, easily oxidized, or prone to polymerization, temporary storage tanks maintain its stability through temperature control systems (such as jacketed heating / cooling) and inert gas protection (such as nitrogen gagging). Simultaneously, the sealed design prevents volatilization or contamination, ensuring the continuity and safety of the production process and meeting environmental and explosion-proof requirements.

[0003] The prior art, disclosed in CN221156402U, discloses a chemical storage tank for preventing sedimentation. The chemical storage tank for preventing sedimentation includes a storage tank, a motor fixedly connected to the top of the storage tank, a connecting plate fixedly connected to the top of the storage tank, a stirring rod rotatably connected to the top of the storage tank, the top of the stirring rod being fixedly connected to the output shaft of the motor, and an anti-sedimentation mechanism provided on the storage tank, the anti-sedimentation mechanism including a rod body.

[0004] This device can drive a cleaning scraper to scrape and clean the inner wall of the temporary storage tank, ensuring the uniformity of the chemical materials in the tank and preventing sedimentation. It is suitable for the temporary storage of liquid bismaleimide (BMI). However, in practical applications, the cleaning scraper will wear down due to long-term friction with the tank wall. Due to its special installation method—the rod is rotatably connected to the inner wall of the temporary storage tank, and the cleaning scraper is fixedly connected to the rod and located inside the temporary storage tank—the replacement and maintenance process of the cleaning scraper is complicated and time-consuming.

[0005] Therefore, improvements are proposed. Utility Model Content

[0006] This utility model is a chemical temporary storage tank designed to prevent sedimentation, which addresses the shortcomings of existing technologies.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a chemical temporary storage tank for preventing sedimentation, comprising a main tank body, a lower tank body sealed and pressed at the bottom of the main tank body, and spline sleeves penetrating to the interior on both sides of the outer surface of the lower tank body, and a first motor fixedly installed on one side of the outer surface of the lower tank body, and the drive end of the first motor being fixedly connected to the adjacent spline sleeve.

[0008] An assembly shaft is provided between the two spline sleeves, and elastic shafts are installed at both ends of the assembly shaft, and the elastic shafts are matched with the spline sleeves.

[0009] A cleaning assembly is fixedly installed on the outer surface of the assembly shaft;

[0010] Three support legs are evenly fixedly installed on the bottom of the outer surface of the main tank. A fixing plate is fixedly connected to the three support legs. Two threaded sleeves that penetrate to the bottom are symmetrically provided on the top of the fixing plate. A screw is threaded to the bottom of each of the two threaded sleeves. A fixing sleeve is rotatably sleeved on the top of each of the two screws. The fixing sleeve is fixedly installed on the bottom of the lower tank.

[0011] The two threaded sleeves are fixedly connected to the fixing plate by a synchronous drive assembly.

[0012] Furthermore, both spline sleeves are sealed and rotatably connected to the lower tank body. This sealed and rotatably connected structure effectively prevents chemical materials from seeping into the transmission components, while ensuring the stability of power transmission.

[0013] Furthermore, both of the elastic shafts include splined holes, which are located at the ends of the assembled shafts. A spring is fixedly installed on one side of the inner wall of the splined hole, and one end of the spring is fixedly connected to the splined shaft. The splined shaft is in a sealed sliding connection with the splined hole and the splined sleeve. This elastic connection design ensures the transmission effect.

[0014] Furthermore, the cleaning assembly includes multiple push rods, which are fixedly installed at the bottom of the assembly shaft. A cleaning scraper is fixedly connected between the multiple push rods and the assembly shaft, and the cleaning scraper is in contact with the inner wall of the lower tank. This integrated cleaning assembly structure effectively enhances the overall rigidity, enabling the scraper to maintain a stable contact with the tank wall even when operating at high speed, thus significantly improving the anti-settling effect.

[0015] Furthermore, both threaded sleeves are rotatably connected to the fixing plate, and the fixing plate provides support for the threaded sleeves, which facilitates the installation of the threaded sleeves.

[0016] Furthermore, the synchronous drive assembly includes a second motor, which is fixedly mounted on the top of the fixed plate. The drive end of the second motor passes through the fixed plate and is fixedly connected to a first synchronous pulley. A synchronous belt is meshed on the outer surface of the first synchronous pulley, and two second synchronous pulleys are meshed on the inner surface of the synchronous belt. The second synchronous pulleys are fixedly fitted on the outer surface of the threaded sleeve, ensuring the synchronous lifting and lowering of the two screws.

[0017] Furthermore, a discharge pipe is fixedly connected to the bottom of the lower tank to facilitate material discharge.

[0018] The beneficial effects of this utility model are:

[0019] This utility model discloses an anti-precipitation chemical storage tank. It features a separable, sealed, press-fit structure between the main tank and the lower tank, enabling quick assembly and disassembly via a screw lifting mechanism. This eliminates the need to disassemble the stirring mechanism during scraper maintenance. The innovative spline sleeve and elastic shaft quick-release transmission mechanism ensures power transmission while allowing for simple replacement of the entire cleaning assembly. The modular cleaning assembly design integrates the scraper, push rod, and assembly shaft into a single, detachable unit, significantly simplifying the replacement process. This design is particularly suitable for the temporary storage of easily precipitating chemical materials such as liquid bismaleimide. While ensuring anti-precipitation effects, it shortens scraper replacement time, significantly improving maintenance efficiency and effectively solving the maintenance difficulties caused by the built-in scraper in traditional designs. Attached Figure Description

[0020] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 : A first-view structural diagram of the present invention;

[0022] Figure 2 : Overall second-view structural diagram of this utility model;

[0023] Figure 3 : A sectional view of the lower tank body of this utility model;

[0024] Figure 4 : Schematic diagram of the assembly shaft structure of this utility model.

[0025] The attached figures are labeled as follows:

[0026] 1. Main tank body; 2. First motor; 3. Lower tank body; 4. Feed pipe; 5. Screw; 6. Threaded sleeve; 7. Second motor; 8. Fixing plate; 9. Support leg; 10. Fixing sleeve; 11. Synchronous belt; 12. Second synchronous pulley; 13. First synchronous pulley; 14. Assembly shaft; 15. Spline sleeve; 16. Spline shaft; 17. Spring; 18. Push rod; 19. Cleaning scraper; 20. Spline hole. Detailed Implementation

[0027] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0028] like Figures 1 to 4 As shown, a chemical temporary storage tank for preventing sedimentation is disclosed, comprising a main tank body 1, with a lower tank body 3 sealed and pressed to the bottom of the main tank body 1. An annular sealing gasket is fixedly installed at the bottom edge of the main tank body 1 to ensure the sealing of the connection between the main tank body 1 and the lower tank body 3. Spline sleeves 15 penetrating to the interior are provided on both sides of the outer surface of the lower tank body 3. Both spline sleeves 15 are rotatably connected to the lower tank body 3 in a sealed manner. The spline sleeves 15 and the lower tank body 3 are rotatably connected by bearings and sealed by sealing rings. The sealing rings are close to the inner side of the lower tank body 3, while the bearings are away from the inner side of the tank body 3. A first motor 2 is fixedly installed on one side of the outer surface of the lower tank body 3, and the drive end of the first motor 2 is fixedly connected to the adjacent spline sleeve 15.

[0029] An assembly shaft 14 is provided between the two spline sleeves 15. Both ends of the assembly shaft 14 are equipped with elastic shafts, which are matched with the spline sleeves 15. Both elastic shafts include spline holes 20, which are located at the ends of the assembly shaft 14. A spring 17 is fixedly installed on one side of the inner wall of the spline hole 20. One end of the spring 17 is fixedly connected to a spline shaft 16, and the spline shaft 16 is in a sealed sliding connection with the spline hole 20 and the spline sleeve 15. Sealing rings are provided on the inner sides of the spline hole 20 and the spline sleeve 15 to ensure the sealing performance of the spline shaft 16 after installation.

[0030] A cleaning assembly is fixedly installed on the outer surface of the assembly shaft 14. The cleaning assembly includes multiple push rods 18, and the push rods 18 are fixedly installed at the bottom of the assembly shaft 14. A cleaning scraper 19 is fixedly connected between the multiple push rods 18 and the assembly shaft 14, and the cleaning scraper 19 is in contact with the inner wall of the lower tank 3.

[0031] Three support legs 9 are evenly fixedly installed on the bottom of the outer surface of the main tank 1. A fixing plate 8 is fixedly connected to the three support legs 9. Two threaded sleeves 6 are symmetrically provided on the top of the fixing plate 8, extending to the bottom. Both threaded sleeves 6 are rotatably connected to the fixing plate 8. The threaded sleeves 6 and the fixing plate are rotatably connected through bearings, which facilitates the installation of the threaded sleeves 6. The bottom of each of the two threaded sleeves 6 is threadedly connected to a screw 5. The top of each of the two screws 5 is rotatably fitted with a fixing sleeve 10, and the fixing sleeve 10 is fixedly installed at the bottom of the lower tank 3. The thread helix angle of the screw 5 is less than the friction angle. The screw has a self-locking ability, which can prevent it from shifting due to vibration or load.

[0032] Two threaded sleeves 6 are fixedly connected to a synchronous drive assembly between themselves and the fixed plate 8. The synchronous drive assembly includes a second motor 7, which is fixedly mounted on the top of the fixed plate 8. The drive end of the second motor 7 passes through the fixed plate 8 and is fixedly connected to a first synchronous pulley 13. A synchronous belt 11 is meshed on the outer surface of the first synchronous pulley 13. Two second synchronous pulleys 12 are meshed on the inner surface of the synchronous belt 11. The second synchronous pulleys 12 are fixedly fitted on the outer surface of the threaded sleeves 6. The cooperation of the first synchronous pulley 13, the synchronous belt 11, and the second synchronous pulleys 12 can ensure transmission accuracy.

[0033] A feed pipe 4 is fixedly connected to the bottom of the lower tank 3. A control valve is installed on the feed pipe 4 to facilitate the control of the opening and closing of the feed pipe 4.

[0034] Working principle: The first motor 2 directly drives the spline sleeve 15 on one side to rotate via its output shaft. Since the two spline sleeves 15 are connected by the assembly shaft 14, a complete power transmission path is formed. The elastic shaft structures at both ends of the assembly shaft 14 have an automatic compensation function: the spline shaft 16 remains engaged with the spline sleeve 15 under the action of the spring 17. The assembly shaft 14 drives the cleaning assembly to rotate at a set speed.

[0035] During rotation, the cleaning scraper 19 can directly scrape off the deposits adhering to the inner wall of the lower tank 3; the push rod 18 is installed at a specific angle to push the bottom material upward, producing a shearing and crushing effect on the agglomerated material.

[0036] During maintenance, the second motor 7 is started. Its working process is as follows: the second motor 7 drives the first synchronous pulley 13 to rotate, and drives the two second synchronous pulleys 12 to rotate synchronously through the synchronous belt 11. The threaded sleeve 6 rotates to make the screw 5 descend. After the lower tank 3 descends to a certain height, the spline shaft 16 is manually pushed to disengage from the spline sleeve 15. The maintenance personnel can easily remove the entire cleaning assembly for replacement or maintenance. When resetting, the reverse operation can automatically align it.

[0037] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A chemical temporary storage tank for preventing sedimentation, comprising a main tank body (1), characterized in that: The bottom of the main tank (1) is sealed and pressed with a lower tank (3). Both sides of the outer surface of the lower tank (3) are provided with spline sleeves (15) that penetrate into the interior. A first motor (2) is fixedly installed on one side of the outer surface of the lower tank (3), and the driving end of the first motor (2) is fixedly connected to the adjacent spline sleeve (15). An assembly shaft (14) is provided between the two spline sleeves (15), and elastic shafts are installed at both ends of the assembly shaft (14), and the elastic shafts are matched with the spline sleeves (15). A cleaning assembly is fixedly installed on the outer surface of the assembly shaft (14); Three support legs (9) are uniformly fixedly installed on the bottom of the outer surface of the main tank (1). A fixing plate (8) is fixedly connected between the three support legs (9). Two threaded sleeves (6) that penetrate to the bottom are symmetrically provided on the top of the fixing plate (8). A screw (5) is threadedly connected to the bottom of the two threaded sleeves (6). A fixing sleeve (10) is rotatably sleeved on the top of the two screws (5). The fixing sleeve (10) is fixedly installed on the bottom of the lower tank (3). The two threaded sleeves (6) are fixedly connected to the fixing plate (8) by a synchronous drive assembly.

2. The anti-sedimentation chemical temporary storage tank according to claim 1, characterized in that: Both spline sleeves (15) are sealed and rotatably connected to the lower tank body (3).

3. The anti-sedimentation chemical temporary storage tank according to claim 1, characterized in that: Both of the elastic shafts include a spline hole (20), and the spline hole (20) is opened at the end of the assembly shaft (14). A spring (17) is fixedly installed on one side of the inner wall of the spline hole (20). One end of the spring (17) is fixedly connected to a spline shaft (16), and the spline shaft (16) is in a sealed sliding connection with the spline hole (20) and the spline sleeve (15).

4. The anti-sedimentation chemical temporary storage tank according to claim 1, characterized in that: The cleaning assembly includes multiple push rods (18), and the push rods (18) are fixedly installed at the bottom of the assembly shaft (14). A cleaning scraper (19) is fixedly connected between the multiple push rods (18) and the assembly shaft (14), and the cleaning scraper (19) is in contact with the inner wall of the lower tank (3).

5. A chemical temporary storage tank for preventing sedimentation according to claim 1, characterized in that: Both of the threaded sleeves (6) are rotatably connected to the fixed plate (8).

6. A chemical temporary storage tank for preventing sedimentation according to claim 1, characterized in that: The synchronous drive assembly includes a second motor (7), which is fixedly mounted on the top of the fixed plate (8). The drive end of the second motor (7) passes through the fixed plate (8) and is fixedly connected to a first synchronous pulley (13). The outer surface of the first synchronous pulley (13) is meshed with a synchronous belt (11), and the inner surface of the synchronous belt (11) is meshed with two second synchronous pulleys (12). The second synchronous pulleys (12) are fixedly fitted onto the outer surface of the threaded sleeve (6).

7. A chemical temporary storage tank for preventing sedimentation according to claim 1, characterized in that: The bottom of the lower tank (3) is fixedly connected to a feed pipe (4).

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