A centrifugal filtration device for producing benzoic acid

Abstract

This utility model discloses a centrifugal filtration device for producing benzoic acid, including a support leg and a centrifuge. The centrifuge is fixed to the top of the support leg, and a slide rail is fixed to the inner wall of the centrifuge. A slide rail has a slide channel inside, and a slider is slidably connected inside the slide channel. A support plate is fixed to the inner side of the slider, and a through-slide groove is formed inside the support plate. An adjusting block is slidably connected inside the through-slide groove. A fixing member is provided at the top of the adjusting block, and a support rod is fixed at the bottom of the adjusting block. A cleaning member is provided at the bottom of the support rod. This device is equipped with an adjustable cleaning member. After benzoic acid is filtered by the centrifuge and the filter cake on the filter screen surface is removed by a scraper, the user can push a push rod to move the adjusting block, the top plate, and the protrusion to move the remaining filter cake in the filter screen holes. The protrusion inserts into the filter screen holes, and the friction is increased by a special texture treatment.

Description

Technical Field

[0001] This utility model relates to the field of benzoic acid production technology, specifically a centrifugal filtration device for producing benzoic acid. Background Technology

[0002] In the production of benzoic acid, centrifugal filtration is a key piece of equipment for achieving solid-liquid separation. The centrifuge uses the centrifugal force generated by its high-speed rotation to quickly separate the filter cake from the benzoic acid solution onto the filter screen surface. The filter cake is then removed from the filter screen surface using a scraper, thus completing the initial filtration and separation process. However, existing centrifugal filtration devices have significant shortcomings. Although the scraper can effectively remove the filter cake from the filter screen surface, it is difficult to clean the impurities remaining in the internal pores of the filter screen. These residual impurities can clog the filter screen pores, reduce the filter efficiency, and thus affect the production efficiency and product quality of benzoic acid. Furthermore, long-term residual impurities may also breed bacteria and undergo chemical reactions, negatively impacting the purity and quality of the benzoic acid product. Moreover, due to the lack of effective cleaning methods, operators must frequently disassemble the filter screen for manual cleaning to ensure normal equipment operation. This not only increases labor intensity but also prolongs equipment downtime, leading to increased production costs. Utility Model Content

[0003] The purpose of this invention is to provide a centrifugal filtration device for the production of benzoic acid, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a centrifugal filtration device for producing benzoic acid, comprising a support leg and a centrifuge. The centrifuge is fixed to the top of the support leg, and a slide rail is fixed to the inner wall of the centrifuge. A slide track is formed inside the slide rail, and a slider is slidably connected inside the slide track. A support plate is fixed to the inner side of the slider, and a through groove is formed inside the support plate. An adjusting block is slidably connected inside the through groove. A fixing member is provided at the top of the adjusting block, and a support rod is fixed at the bottom of the adjusting block. A cleaning member is provided at the bottom of the support rod.

[0005] Preferably, the fixing component includes a push rod, which is fixed to the top of the adjusting block. A fixing block is snapped onto the outer wall of the push rod, and a connecting plate is fixed to the outer wall of the fixing block. The end of the connecting plate away from the fixing block is connected to the inner wall of the centrifuge.

[0006] Preferably, the fixing block is semi-circular in shape, and a circular groove is provided inside the fixing block to match the push rod.

[0007] Preferably, the cleaning component includes a top plate, which is fixed to the bottom end of the support rod, and a plurality of protrusions are fixed on the inner side of the top plate.

[0008] Preferably, the size of the protrusion matches the pore size of the filter screen in the centrifuge.

[0009] Preferably, the top plate is arc-shaped, which facilitates pushing the protrusion and inserting it into the internal filter of the centrifuge for cleaning.

[0010] Compared with the prior art, the beneficial effects of this utility model are: This device is equipped with an adjustable cleaning component. After benzoic acid is filtered by a centrifuge and the filter cake on the filter screen surface is removed by a scraper, the user can push the push rod to move the adjusting block, top plate and protrusions to remove the remaining filter cake in the filter screen holes. The protrusions insert into the filter screen holes and use the increased friction from the special texture treatment to effectively remove the residual material, ensuring the filter screen is clean and preventing the residual material from affecting the subsequent benzoic acid filtration efficiency and quality, thereby improving production continuity and product purity. The slider and support plate are fixed with high-strength anti-loosening bolts, and thread-locking glue is applied to the threaded parts to prevent the bolts from loosening during equipment operation; the push rod and the fixed block are designed to snap together. When the filter screen is not being cleaned, the push rod is inserted into the circular slot of the fixed block for fixation, and the surface of the fixed block is marked to facilitate accurate installation and fixation, prevent the cleaning parts from moving during centrifuge operation, and ensure the stability and safety of the device operation. The sliding connection between the slide rail and the slider, along with the sliding of the adjusting block inside the support plate, allows the cleaning component to be flexibly adjusted in position inside the centrifuge. During the cleaning process, the user can pull the push rod to move the slider within the slide rail, adjusting the position of the top plate to achieve comprehensive cleaning of all parts of the filter screen, enhancing the applicability and cleaning effect of the device, and reducing the difficulty and workload of manual cleaning. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 for Figure 1 Detailed view of the connection structure in cross-section; Figure 3 for Figure 2 Enlarged detail of the connection structure of the central fixing component; Figure 4 for Figure 2 Detailed top-down view of the connection structure; Figure 5 for Figure 2 Detailed top view of the connection structure between the central fixed block and the push rod.

[0012] In the diagram: 1. Support leg, 2. Centrifuge, 3. Discharge port, 4. Slide rail, 5. Slider, 6. Support plate, 7. Adjusting block, 8. Push rod, 9. Fixing block, 10. Connecting plate, 11. Support rod, 12. Top plate, 13. Protrusion. Detailed Implementation

[0013] 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.

[0014] Please see Figure 1-5 This utility model provides a technical solution for a centrifugal filtration device for producing benzoic acid: A centrifugal filtration device for producing benzoic acid includes a support leg 1 and a centrifuge 2. The centrifuge 2 is fixed to the top of the support leg 1, and a discharge port 3 is provided at the bottom of the centrifuge 2. A slide rail 4 is fixed to the inner wall of the centrifuge 2. The length of the slide rail 4 is matched with the internal dimensions of the centrifuge 2, which can meet the adjustment requirements of the support plate 6 at different positions inside the centrifuge 2. A slide rail 4 is provided inside the slide rail 4, and a slider 5 is slidably connected inside the slide rail. The slider 5 is fixed to the support plate 6 by high-strength bolts. The bolts are designed to prevent loosening, and thread-locking adhesive is applied to the threaded parts to prevent the bolts from loosening during equipment operation, ensuring a firm and reliable connection between the slider 5 and the support plate 6. The support plate 6 is fixed to the inner side of the slider 5. The support plate 6 ensures that the adjusting block 7 can slide flexibly in the slide groove, and at the same time ensures that the adjusting block 7 will not wobble after being fixed. The inside of the support plate 6 forms a through slide groove, and the adjusting block 7 is slidably connected inside the through slide groove. A fixing part is provided at the top of the adjusting block 7, and a support rod 11 is fixed at the bottom of the adjusting block 7. A cleaning part is provided at the bottom of the support rod 11.

[0015] The fixing component includes a push rod 8, which is fixed to the top of the adjusting block 7. One end of the push rod 8 is fixed to the top of the adjusting block 7 by a threaded connection. When not in use, the other end is inserted into the circular slot inside the fixing block 9 for fixation. The outer wall of the push rod 8 is fitted with the fixing block 9. The surface of the fixing block 9 is also provided with positioning marks to facilitate accurate determination of the position of the fixing block 9 during installation, ensuring that the push rod 8 can be smoothly inserted into the slot and fixed. The outer wall of the fixing block 9 is fixed with a connecting plate 10, and the end of the connecting plate 10 away from the fixing block 9 is connected to the inner wall of the centrifuge 2. The fixing block 9 is semi-circular in shape, and a circular slot is opened inside the fixing block 9 to match the push rod 8.

[0016] The cleaning component includes a top plate 12, which is fixed to the bottom of the support rod 11. The top plate 12 has sufficient strength to support the protrusions 13 and transmit the cleaning force. Multiple protrusions 13 are fixed on the inner side of the top plate 12. The surface of the protrusions 13 is specially textured to increase the friction between them and the inner wall of the filter screen holes, which can more effectively remove the residual material in the filter screen holes. The specifications of the protrusions 13 match the holes of the filter screen in the centrifuge 2. The top plate 12 is arc-shaped, which makes it easy to push and insert the protrusions 13 into the filter screen inside the centrifuge 2 for cleaning.

[0017] Working Principle: When a centrifugal filtration device for producing benzoic acid is first used, after the benzoic acid is filtered through centrifuge 2, the filter cake adheres to the surface of the filter screen. After being removed by a scraper, filter cake residue remains in the pores inside the filter screen. When it is necessary to clean the filter cake residue, the user opens the cover plate at the top of the centrifuge, then pushes the push rod 8 forward to push it out of the fixed block 9. After the push rod 8 is no longer engaged, the user pushes the push rod 8 to drive the adjusting block 7 forward inside the support plate 6. During the push, the top plate 12 drives the protrusion 13 to move forward simultaneously. As the centrifuge moves forward, the protrusion 13 inserts into the filter screen of the centrifuge 2 to clean the filter cake remaining inside the filter screen. After cleaning, the filter cake falls downward to the discharge port 3. During the cleaning process, the user can pull the push rod 8 left and right. When pulling, the slider 5 slides once inside the slide rail 4 to adjust the position of the top plate 12, thus facilitating the cleaning of various positions of the filter screen. After cleaning, the user resets the push rod 8 and then pulls it outward. When pulling, the push rod 8 is inserted into the fixed block 9 for locking, preventing the top plate 12 from moving during the operation of the centrifuge 2.

[0018] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A centrifugal filtration device for producing benzoic acid, comprising a support leg (1) and a centrifuge (2), wherein the centrifuge (2) is fixed to the top of the support leg (1), characterized in that, The centrifuge (2) has a slide rail (4) fixed on its inner wall. The slide rail (4) has a slide channel inside, and a slider (5) is slidably connected inside the slide channel. A support plate (6) is fixed on the inner side of the slider (5). A through groove is formed inside the support plate (6), and an adjusting block (7) is slidably connected inside the through groove. A fixing member is provided at the top of the adjusting block (7), and a support rod (11) is fixed at the bottom of the adjusting block (7). A cleaning member is provided at the bottom of the support rod (11).

2. The centrifugal filtration device for producing benzoic acid according to claim 1, characterized in that, The fixing component includes a push rod (8), which is fixed to the top of the adjusting block (7). A fixing block (9) is snapped onto the outer wall of the push rod (8). A connecting plate (10) is fixed to the outer wall of the fixing block (9), and the end of the connecting plate (10) away from the fixing block (9) is connected to the inner wall of the centrifuge (2).

3. The centrifugal filtration device for producing benzoic acid according to claim 2, characterized in that, The fixing block (9) is semi-circular in shape, and a circular slot is provided inside the fixing block (9) to match the push rod (8).

4. The centrifugal filtration device for producing benzoic acid according to claim 1, characterized in that, The cleaning component includes a top plate (12), which is fixed to the bottom end of the support rod (11), and a plurality of protrusions (13) are fixed on the inner side of the top plate (12).

5. A centrifugal filtration device for producing benzoic acid according to claim 4, characterized in that, The specifications of the protrusion (13) are matched with the holes of the filter screen in the centrifuge (2).

6. A centrifugal filtration device for producing benzoic acid according to claim 4, characterized in that, The top plate (12) is arc-shaped, which makes it easy to push the protrusion (13) and insert it into the internal filter of the centrifuge (2) for cleaning.

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