A post-processing device for boron chelates used in norfloxacin production

Abstract

This invention provides a post-processing device for boron chelates used in norfloxacin production, comprising a mixing tank, a stirring rod rotatably mounted inside the mixing tank, and a wall scraping assembly on the outer side of the stirring rod. The wall scraping assembly includes a fixed frame mounted on the outer side of the stirring rod, a mounting base detachably mounted on the outer side of the fixed frame, a telescopic component mounted inside the mounting base, and a scraper at the end of the telescopic component. This invention allows the stirring rod to rotate via a drive component, simultaneously causing the fixed frame and the telescopic component on the outer side of the fixed frame to be scraped and cleaned against the inner wall of the mixing tank under centrifugal force. This avoids excessive material adhering to the inner wall of the mixing tank, which would lead to uneven mixing and unnecessary waste of material. Furthermore, the detachable mounting base allows for easy disassembly, cleaning, and maintenance of the mounting base and scraper, greatly reducing the difficulty of scraper maintenance.

Description

Technical Field

[0001] This utility model relates to the technical field of product recycling and processing equipment, specifically to a post-processing device for boron chelates used in norfloxacin production. Background Technology

[0002] Norfloxacin, also known as Norfloxacin, is a third-generation quinolone antibiotic that inhibits the action of DNA gyrase in pathogenic bacteria in the digestive tract. The production of norfloxacin requires multiple reaction catalytic synthesis processes, among which boron chelates are particularly important. Norfloxacin production requires the use of processing equipment to treat the reaction catalysts.

[0003] The high-stability post-processing device for boron chelates in norfloxacin production proposed in application number 202221783176.5 uses a stirring shaft to stir the mixture inside. However, it is difficult to scrape off the compounds adhering to the inner wall during the rotation of the stirring shaft. When the compounds adhere to the inner wall for a long time, it is easy to damage the processing device and also easy to cause unnecessary waste of materials.

[0004] Traditional post-treatment devices often use fixed-connection scraping mechanisms, which make disassembly, cleaning, and maintenance difficult when the scrapers wear or are damaged, increasing maintenance costs. Furthermore, this design means the contact force between the scraper and the tank wall is not adjustable; even slight wear on the scraper leads to a significant decrease in cleaning effectiveness and shortens its lifespan. Utility Model Content

[0005] In view of this, the present invention provides a post-processing device for boron chelates used in norfloxacin production. The device can adaptively adjust the contact force between the scraper and the tank wall through a detachable scraper assembly. This solves the problems of uneven mixing and waste caused by material easily adhering to the inner wall of the existing mixing tank, difficulty in disassembling and maintaining the scraper device, reduced cleaning effect after scraper wear, and insufficient support and driving stability.

[0006] To solve the above-mentioned technical problems, this utility model provides a post-processing device for boron chelates used in norfloxacin production, including a mixing tank. A stirring rod, rotatably connected to an external drive unit, is mounted inside the mixing tank. A wall scraping assembly is mounted on the outer side of the stirring rod. The wall scraping assembly includes a fixed frame mounted on the outer side of the stirring rod, and a mounting base detachably mounted on the outer side of the fixed frame. A telescopic component is mounted inside the mounting base, and a scraper is mounted at the end of the telescopic component that abuts against the inner wall of the mixing tank. This utility model allows the driving unit to rotate the stirring rod, simultaneously causing the fixed frame and the telescopic component outside the fixed frame to be scraped and cleaned against the inner wall of the mixing tank under centrifugal force. This avoids excessive material adhering to the inner wall of the mixing tank, preventing uneven mixing and unnecessary waste. Furthermore, the detachable mounting base allows for easy disassembly, cleaning, and maintenance of the mounting base and scraper, greatly reducing the difficulty of scraper maintenance.

[0007] The upper part of the fixed frame has a threaded hole, and the mounting base has a mounting groove that matches the fixed frame. The upper part of the mounting groove has a through hole that matches the threaded hole. A bolt is inserted into the through hole and the bolt is threaded into the threaded hole. This utility model can achieve a quick and efficient detachable connection of the mounting base by inserting the mounting groove on the mounting base into the fixed frame, aligning the axis of the through hole with the axis of the threaded hole, inserting the bolt into the through hole and screwing it into the threaded hole. This greatly improves the disassembly and assembly efficiency and installation stability of the mounting base, making it more convenient and efficient.

[0008] There are multiple telescopic components, which are evenly distributed within the mounting base.

[0009] Each telescopic component includes a limiting cylinder mounted on the mounting base. A limiting rod is slidably mounted inside the limiting cylinder. A baffle is mounted at the end of the limiting rod located inside the limiting cylinder. A limiting disc is mounted on the outside of the limiting cylinder. If necessary, a spring can be mounted on the outside of the baffle on the limiting rod. The other end of the spring is mounted on the west side of the limiting cylinder. The back of the scraper is mounted on the outside of the multiple limiting rods. This utility model, through the connection between the multiple telescopic components and the back of the scraper, enables the limiting rod to move outward along the limiting cylinder due to centrifugal force during the high-speed rotation of the stirring rod until it abuts against the inner wall of the mixing tank. This achieves efficient cleaning of the material adhering to the inner wall of the mixing tank and avoids the problem of reduced cleaning effect due to slight wear of the scraper, greatly improving the service life of the scraper.

[0010] The bottom of the mixing tank is equipped with four support legs, which are evenly distributed at the bottom of the mixing tank. This utility model can achieve a firm support and fixation of the mixing tank through the support legs, which greatly improves the stability of the mixing tank during operation.

[0011] The driving component is a servo motor. The output shaft of the servo motor is connected to the stirring rod through a reducer. This invention can drive the stirring rod to rotate together with the servo motor through the rotation of the output shaft, which is reduced in speed by the reducer. This achieves thorough mixing of the material in the mixing tank and also facilitates efficient cleaning of the material adhering to the inner wall of the mixing tank. This greatly reduces the difficulty of subsequent separate treatment of the inner wall of the mixing tank and improves work efficiency.

[0012] In summary, compared with the prior art, this application includes at least one of the following beneficial technical effects:

[0013] 1. Reduce material waste and uneven mixing: This utility model can effectively clean the material adhering to the inner wall of the mixing tank by setting up a scraping component. When the driving component drives the stirring rod to rotate, the telescopic component, under the action of centrifugal force and spring, carries the scraper to rotate and scrape against the inner wall of the mixing tank, thus avoiding uneven mixing caused by excessive material adhesion, reducing unnecessary material waste, and ensuring mixing quality.

[0014] 2. Convenient and efficient disassembly and maintenance: This utility model can be connected to the mounting base and the fixed frame by means of a mounting slot and detachable bolts. The mounting base and scraper can be quickly disassembled by unscrewing the bolts. During installation, simply align the mounting slot, insert the scraper, and tighten the bolts. This greatly improves the efficiency of disassembly and assembly, reduces the difficulty of scraper maintenance, and saves manpower and time costs.

[0015] 3. Extend scraper service life: This utility model adopts a limit cylinder, limit rod, baffle and spring structure for the telescopic component. When the scraper wears slightly, the spring force pushes the limit rod to move outward, so that the scraper is always in close contact with the inner wall of the mixing tank. This avoids the cleaning effect from deterioration due to scraper wear, significantly extends the scraper service life and reduces the replacement frequency.

[0016] 4. Stable and reliable support and drive: This utility model can form a stable support for the mixing tank through four evenly distributed support legs, and the bottom rubber anti-slip pad enhances the anti-slip performance and ensures the stability of the mixing tank during operation; it adopts Delta servo motor and Liming reducer for drive, which ensures smooth transmission and precise control of the mixing speed, ensuring continuous and reliable mixing and wall scraping operations, and improving the overall operating stability of the equipment. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the post-processing device for the boron chelate used in the production of norfloxacin according to this utility model.

[0018] Figure 2 This utility model Figure 1 Enlarged view of point A in the middle;

[0019] Figure 3This is a schematic diagram of the post-processing device for the boron chelate used in the production of norfloxacin, from another perspective.

[0020] Explanation of reference numerals in the attached drawings: 100, mixing tank; 200, stirring rod; 300, wall scraping assembly; 310, fixing frame; 320, mounting base; 321, through hole; 330, telescopic component; 331, limiting cylinder; 332, limiting rod; 340, scraper; 400, support leg. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the accompanying drawings of the embodiments of this utility model. Figure 1-3 The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0022] like Figure 1-3 As shown: This embodiment provides a post-processing device for boron chelates used in norfloxacin production, including a mixing tank 100. The mixing tank 100 is made of 304 stainless steel, and the inner wall is polished to Ra0.8μm. This is to avoid the adhesion of stubborn and sticky materials. A stirring rod 200 is rotatably installed inside the mixing tank 100 and is connected to an external drive component. The stirring rod 200 is a cylindrical structure made of chrome-plated 45# steel. A wall scraping assembly 300 is provided on the outer side of the stirring rod 200. The wall scraping assembly 300 includes a fixing frame 310 disposed on the outer side of the stirring rod 200. A mounting base 320 is detachably installed on the outer side of the fixing frame 310. A telescopic component 330 is provided inside the mounting base 320. The end of 330 is provided with a scraper 340 that abuts against the inner wall of the mixing tank 100. This utility model can drive the stirring rod 200 to rotate through the driving component, while the fixed frame 310 and the telescopic component 330 on the outside of the fixed frame 310 are driven by centrifugal force. The telescopic component 330 carries the scraper 340 to abut against the inner wall of the mixing tank and scrape it to clean it. This avoids the material adhering to the inner wall of the mixing tank 100 too much, which would cause uneven mixing and unnecessary waste of material. At the same time, the installation method of the detachable fixed seat can easily disassemble, clean and maintain the mounting seat 320 and the scraper 340, which greatly reduces the difficulty of maintenance of the scraper 340.

[0023] According to one embodiment of the present invention, such as Figure 1-3As shown, the upper part of the fixed frame 310 is provided with a threaded hole, and the mounting base 320 is provided with a mounting groove that matches the fixed frame 310. The upper part of the mounting groove is provided with a through hole 321 that matches the threaded hole. A bolt is inserted into the through hole 321 and the bolt is threaded into the threaded hole. This utility model can achieve a quick and efficient detachable connection of the mounting base 320 by inserting the mounting groove on the mounting base 320 into the fixed frame 310, so that the axis of the through hole 321 coincides with the axis of the threaded hole, and then inserting the bolt into the through hole 321 and screwing it into the threaded hole. This greatly improves the disassembly and assembly efficiency and installation stability of the mounting base 320, making it more convenient and efficient.

[0024] According to another embodiment of the present invention, such as Figure 1 and Figure 2 As shown, there are multiple telescopic components 330, which are evenly distributed within the mounting base 320.

[0025] Each telescopic component 330 includes a limiting cylinder 331 mounted on the mounting base 320. A limiting rod 332 is slidably mounted inside the limiting cylinder 331. A baffle is mounted at the end of the limiting rod 332 located inside the limiting cylinder 331. A limiting disc is mounted on the outside of the limiting cylinder 331. If necessary, a spring can be mounted on the outside of the baffle on the limiting rod 332. The other end of the spring is mounted on the west side of the limiting cylinder 331. The back of the scraper 340 is mounted on the outside of the multiple limiting rods 332. Through the connection between the multiple telescopic components 330 and the back of the scraper 340, this utility model enables the limiting rod 332 to move outward along the limiting cylinder 331 with the scraper 340 due to centrifugal force during the high-speed rotation of the stirring rod 200, until it abuts against the inner wall of the mixing tank 100. This achieves efficient cleaning of the material adhering to the inner wall of the mixing tank 100, and avoids the problem of poor cleaning effect due to slight wear of the scraper 340, greatly improving the service life of the scraper 340.

[0026] According to another embodiment of the present invention, such as Figure 1 and Figure 3 As shown, the bottom of the mixing tank 100 is provided with four support legs 400, which are evenly distributed on the bottom of the mixing tank 100. The support legs 400 are made of Q235 carbon steel and have a 5mm thick rubber anti-slip pad bonded to the bottom. This utility model can achieve the function of firmly supporting and fixing the mixing tank 100 through the support legs 400, which greatly improves the stability of the mixing tank 100 during operation.

[0027] The driving component is a servo motor. The output shaft of the servo motor is connected to the stirring rod 200 via a reducer. The driving component is a Delta ECMA-C20604RS servo motor, fixed on the top frame, connected to 220V AC power, with a rated power of 400W. The output shaft of the servo motor is connected to the input shaft of the Liming PLF090-10 reducer via a coupling. The output shaft of the reducer is connected to the top of the stirring rod 200 via a coupling. The reduction ratio is 10:1, and the output speed is adjustable from 0-300r / min. This invention allows the stirring rod 200 to rotate together with the servo motor through the rotation of its output shaft, after being reduced in speed by the reducer. This achieves thorough mixing of the material in the mixing tank 100 while also facilitating efficient cleaning of the material adhering to the inner wall of the mixing tank 100. This significantly reduces the difficulty of subsequent separate treatment of the inner wall of the mixing tank 100 and improves work efficiency.

[0028] How to use this utility model:

[0029] First, it should be clarified that the post-processing device involved in this utility model is mainly used for the efficient and automatic cleaning of materials adhering to the inner wall of the mixing container during the mixing process in the chemical, food, and pharmaceutical fields. This utility model takes the post-processing of boron chelates in norfloxacin production as an example to describe its usage method in detail. Its working principle and usage method are as follows:

[0030] The working principle of this utility model is as follows: The drive unit (servo motor) is connected to a 220V AC power supply and starts. The output shaft rotates, and after being reduced in speed by a reducer, it drives the stirring rod 200 to rotate through a coupling. When the stirring rod 200 rotates, it drives the outer fixed frame 310, mounting base 320, and telescopic component 330 to rotate together. Under the action of centrifugal force, the limiting rod 332 inside the telescopic component 330 slides outward along the limiting cylinder 331. At the same time, the spring is compressed to generate elastic force, causing the scraper 340 to come into close contact with the inner wall of the mixing tank 100. As the stirring rod 200 continues to rotate, the scraper 340 scrapes and cleans the inner wall of the mixing tank 100, scraping off the adhered material. When the scraper 340 shows slight wear, the elastic force of the spring pushes the limiting rod 332 to continue to extend outward, so that the scraper 340 always maintains good contact with the inner wall, ensuring the cleaning effect. During the stirring process, the scraped material re-participates in the mixing, avoiding uneven mixing; after the stirring is completed, the residual material on the inner wall is greatly reduced, reducing waste.

[0031] The method of using this utility model is as follows:

[0032] Preparation stage: Check that all components are securely connected, that the scraper 340 is properly contacting the inner wall of the mixing tank 100, and that the springs are intact. Connect the drive unit to a 220V AC power supply and test whether the stirring rod 200 rotates smoothly without abnormal noise.

[0033] Feeding stage: The material to be mixed is fed into the mixing tank 100 through the top opening. The amount of material fed into the mixing tank 100 shall not exceed 70% of the volume of the mixing tank 100 to avoid material overflow during mixing.

[0034] Mixing Operation: Start the servo motor and set the mixing speed (usually 50-200 r / min) via the controller. The reducer drives the mixing rod 200 and the wall scraping assembly 300 to rotate. Observe the scraping of the inner wall by the scraper 340 to ensure there are no obvious missed areas. Set the mixing time according to the material characteristics. The mixing status can be viewed through the observation window during the process. Discharge Stage: After mixing is completed, turn off the servo motor and wait for the mixing rod 200 to completely stop rotating. Open the discharge valve at the bottom of the mixing tank 100 to discharge the mixed material. The residual material on the scraper 340 will fall down with the discharge.

[0035] Disassembly and Maintenance: When cleaning or replacing scraper 340, disconnect the power supply, unscrew the bolts on mounting base 320, and remove mounting base 320 along with scraper 340 from fixed frame 310. Clean residual material from scraper 340. If scraper 340 is severely worn, replace with a new scraper 340 and reinstall. When maintaining telescopic component 330, check spring elasticity. If the elasticity is insufficient, replace it promptly to ensure smooth sliding of limit rod 332. Regularly check the fixing of outriggers 400 and the tightness of drive component connections to ensure normal equipment operation.

[0036] This invention can adaptively adjust the contact force between the scraper 340 and the tank wall through a detachable scraper assembly 300, which solves the problems of uneven mixing and waste caused by material adhering to the inner wall of the existing mixing tank 100, difficulty in disassembling and maintaining the scraper device, reduced cleaning effect after scraper 340 wear, and insufficient support and driving stability.

[0037] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A post-treatment device for boron chelate used in norfloxacin production, comprising a stirring tank (100), a stirring rod (200) is rotatably arranged in the stirring tank (100) and is drivingly connected with an external driving member, characterized in that: A wall scraping assembly (300) is provided on the outer side of the stirring rod (200). The wall scraping assembly (300) includes a fixing frame (310) provided on the outer side of the stirring rod (200). A mounting base (320) is detachably provided on the outer side of the fixing frame (310). A telescopic member (330) is provided inside the mounting base (320). A scraper (340) is provided at the end of the telescopic member (330) to abut against the inner wall of the mixing tank (100).

2. The apparatus for the work-up of a boron chelate for the production of norfloxacin according to claim 1, characterized in that The upper part of the fixed frame (310) is provided with a threaded hole, and the mounting base (320) is provided with a mounting groove that is compatible with the fixed frame (310). The upper part of the mounting groove is provided with a through hole (321) that is compatible with the threaded hole. A bolt is inserted into the through hole (321) and the bolt is threadedly connected to the threaded hole.

3. The apparatus for the post-treatment of a boron chelate for the production of norfloxacin according to claim 2, characterized in that: There are multiple telescopic components (330), which are evenly distributed within the mounting base (320).

4. The apparatus for the post-treatment of a boron chelate for the production of norfloxacin according to claim 3, characterized in that: Each of the telescopic components (330) includes a limiting cylinder (331) disposed on the mounting base (320), a limiting rod (332) is slidably disposed inside the limiting cylinder (331), a baffle is provided at the end of the limiting rod (332) located inside the limiting cylinder (331), a limiting disc is provided on the outside of the limiting cylinder (331), and the back of the scraper (340) is disposed on the outside of the plurality of limiting rods (332).

5. The apparatus for the post-treatment of a boron chelate for the production of norfloxacin according to claim 4, characterized in that: The bottom of the mixing tank (100) is provided with support legs (400).

6. The apparatus for the post-treatment of a boron chelate for the production of norfloxacin according to claim 5, characterized in that: The driving component is a servo motor.

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