A brine filter in caustic soda production process

Abstract

The utility model relates to a kind of brine filter in caustic soda preparation process, belong to caustic soda production technical field, including the filter box, filter cartridge and driving mechanism of being installed on the top of base and being composed of brine filter, the driving mechanism includes fixed on the upper surface of base drive motor, rotationally installed in the connecting sleeve of filter box inside, fixed on the lower surface of filter cartridge and with the spline connection of connecting sleeve connecting shaft and between the transmission member of installing connecting sleeve and drive motor;Water delivery mechanism is provided on the base, and synchronous structure is provided between the water delivery mechanism and driving mechanism;The water delivery mechanism includes pump housing, fixed in the diaphragm of pump housing, fixed and communicated in the check valve of one end of pump housing and reciprocatingly set in the piston of pump housing inside.This brine filter in caustic soda preparation process, good synchronism, high degree of automation, high filtration efficiency, compact structure, strong stability and strong adaptability Advantage, can satisfy the brine filtering demand in caustic soda preparation process.

Description

Technical Field

[0001] This utility model relates to the field of caustic soda production technology, specifically to a brine filter in the caustic soda preparation process. Background Technology

[0002] Sodium hydroxide, an inorganic compound with the chemical formula NaOH, is also known as caustic soda, lye, solid alkali, caustic soda, and soda ash. It is a highly alkaline and corrosive substance, widely used as an acid neutralizer, complexing masking agent, precipitant, precipitation masking agent, color developer, saponifying agent, peeling agent, and detergent. In the production of caustic soda, brine is needed to refine resin, and impurities are generated during this process, necessitating filtration.

[0003] A search revealed that patent document CN216497921U discloses a filter assembly for refining resin with brine in caustic soda production, belonging to the field of caustic soda production technology. The key technical features include a housing, with a filter mechanism movably connected inside the housing. A fixed rod is fixedly connected to the bottom of the filter mechanism, and a support plate is fixedly connected to the bottom of the fixed rod. Transmission mechanisms are fixedly connected to both sides of the bottom of the housing, with the transmission mechanism movably connected to the support plate on the side closest to it. A material box is fixedly connected to the bottom left side of the housing, and a flexible hose is fixedly connected to the top of the material box.

[0004] The above-mentioned patent has the following defects: the filter screen is fixed by bolts, which makes installation and disassembly inconvenient, resulting in high maintenance costs and potential safety hazards. If the operation is improper or the bolts are not tightened properly when replacing or cleaning the filter screen, the filter screen may fall off or loosen, thereby affecting the filtration effect or even causing production accidents, and failing to meet the usage requirements. Therefore, a brine filter for the caustic soda preparation process is proposed to solve the problems mentioned above. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a brine filter for the caustic soda preparation process, which has advantages such as high practicality and ease of use, and solves the problem of inconvenient filter screen disassembly.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a brine filter in the caustic soda preparation process, comprising a brine filter consisting of a filter box, a filter cylinder and a drive mechanism installed on a base, wherein the drive mechanism includes a drive motor fixed to the upper surface of the base, a connecting sleeve rotatably installed inside the filter box, a connecting shaft fixed to the lower surface of the filter cylinder and splinedly connected to the connecting sleeve, and a transmission component installed between the connecting sleeve and the drive motor. A water conveying mechanism is provided on the base, and a synchronization structure is provided between the water conveying mechanism and the driving mechanism; The water conveying mechanism includes a pump casing, a diaphragm fixed inside the pump casing, a check valve fixedly connected to one end of the pump casing, and a piston reciprocating inside the pump casing. A valve stem extending to the outside of the pump casing is fixed on the side of the piston away from the diaphragm.

[0007] Furthermore, the filter box is hollow inside and has an open top side, and the filter cylinder is installed inside the filter box.

[0008] Furthermore, both ends of the connecting sleeve penetrate the interior of the filter box, and the transmission component includes a meshing transmission gear and a driven gear, with the transmission gear and driven gear being of different sizes. The transmission gear is fixed to the output shaft of the drive motor, and the driven gear is fixed to the bottom end of the connecting sleeve.

[0009] Furthermore, the check valve includes a valve tube, an abutment block fixed inside the valve tube, and a mounting bracket. A connecting rod is provided through the mounting bracket. One end of the connecting rod is fixed with a valve plate that abuts against the abutment block, and the other end of the connecting rod is fixed with a first return spring that is fixed to the outer surface of the mounting bracket.

[0010] Furthermore, apart from the valve tube, the check valve has two of each of its structures, and both ends of the valve tube are fixedly connected to water supply pipes.

[0011] Furthermore, the valve stem is T-shaped, its cross-section fits the synchronization structure, and a second return spring is fixed between the cross-section of the valve stem and the pump housing.

[0012] Furthermore, the synchronization structure includes a synchronization shaft rotatably mounted on the upper surface of the base and an eccentric wheel fixed to the top of the synchronization shaft, wherein the eccentric wheel is in contact with the cross-section of the valve stem.

[0013] Furthermore, the synchronization structure also includes a synchronization element installed between the synchronization shaft and the connecting sleeve. The synchronization element consists of a synchronization wheel fixed to the outer surface of the synchronization shaft and the connecting sleeve and a synchronization belt that drives the connection between the two synchronization wheels.

[0014] Compared with the prior art, this utility model provides a brine filter in the caustic soda preparation process, which has the following beneficial effects: 1. The brine filter in this caustic soda preparation process drives the filter cylinder to rotate via a drive mechanism, while simultaneously using a water conveying mechanism to transport brine. A synchronization structure enables the drive mechanism and the water conveying mechanism to work synchronously. The linkage between the drum rotation speed and the water conveying speed means that when the water conveying speed increases, the drum rotation speed also increases accordingly, thereby processing the water flow faster. This helps to complete a large amount of filtration work in a short time, improving the overall processing efficiency. At the same time, since the drum rotation speed is matched with the water flow speed, problems such as insufficient filtration or excessive wear caused by excessively fast or slow rotation speed can be avoided.

[0015] 2. The brine filter in the caustic soda preparation process is connected to the connecting sleeve by a connecting shaft and spline, which facilitates the disassembly and assembly of the filter cylinder and improves the disassembly and assembly efficiency of the filter cylinder. At the same time, the rotation of the filter cylinder helps to distribute the brine evenly and filter it, thereby improving the filtration efficiency and quality. Attached Figure Description

[0016] Figure 1 This is a three-dimensional view of the structure of this utility model; Figure 2 This is a cross-sectional view of the structure of this utility model; Figure 3 This is a schematic diagram of the structure of the filter cartridge of this utility model; Figure 4 This utility model Figure 2 A magnified structural diagram of structure A is shown below; Figure 5 This is a schematic diagram of the water conveying mechanism of this utility model; Figure 6 This is a cross-sectional view of the water conveying mechanism of this utility model.

[0017] In the diagram: 1. Base; 2. Filter box; 3. Filter cartridge; 4. Drive mechanism; 401. Drive motor; 402. Connecting sleeve; 403. Connecting shaft; 404. Driven gear; 405. Transmission gear; 5. Water delivery mechanism; 501. Pump casing; 502. Valve pipe; 503. Diaphragm; 504. Valve stem; 505. Piston; 506. Abutment block; 507. Mounting bracket; 508. Valve plate; 509. Connecting rod; 510. First return spring; 511. Second return spring; 6. Water delivery pipe; 7. Synchronization structure; 701. Synchronization shaft; 702. Eccentric wheel; 703. Synchronization component; 7031. Synchronization pulley; 7032. Synchronization belt. Detailed Implementation

[0018] 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.

[0019] Please see Figures 1 to 6A brine filter for caustic soda preparation includes a filter box 2, a filter cylinder 3, and a drive mechanism 4 mounted on a base 1. The filter box 2 is hollow inside and has an open top. The filter cylinder 3 is installed inside the filter box 2. Specifically, the drive mechanism 4 includes a drive motor 401 fixed to the upper surface of the base 1, a connecting sleeve 402 rotatably mounted inside the filter box 2, a connecting shaft 403 fixed to the lower surface of the filter cylinder 3 and splinedly connected to the connecting sleeve 402, and a transmission component installed between the connecting sleeve 402 and the drive motor 401. The two ends of the connecting sleeve 402 penetrate the interior of the filter box 2. The transmission component includes a meshing drive gear 405 and a driven gear 404, which are of different sizes. The drive gear 405 is fixed to the output shaft of the drive motor 401, and the driven gear 404 is fixed to the bottom end of the connecting sleeve 402. The drive motor 401 drives the transmission gear 405 to rotate, which in turn drives the driven gear 404, which meshes with the transmission gear 405, to rotate. Since the transmission gear 405 and the driven gear 404 are of different sizes, this design can achieve deceleration or acceleration. The rotation speed of the filter cartridge 3 can be adjusted according to actual needs to achieve the best filtration effect. The connecting sleeve 402 is a splined sleeve, and the connecting shaft 403 is a splined shaft. The outer surface of the connecting shaft 403 has protrusions. During installation, simply insert the connecting shaft 403 into the connecting sleeve 402 to install and fix the filter cartridge 3.

[0020] In this embodiment, a water conveying mechanism 5 is provided on the base 1. The water conveying mechanism 5 includes a pump housing 501, a diaphragm 503 fixed inside the pump housing 501, a check valve fixedly connected to one end of the pump housing 501, and a piston 505 reciprocating inside the pump housing 501. A valve stem 504 extending to the outside of the pump housing 501 is fixed to the side of the piston 505 away from the diaphragm 503. Specifically, the check valve includes a valve pipe 502, an abutment block 506 fixed inside the valve pipe 502, and a mounting bracket 507. A connecting rod 509 is provided through the mounting bracket 507. A valve plate 508 abutting against the abutment block 506 is fixed to one end of the connecting rod 509, and a first return spring 510 fixed to the outer surface of the mounting bracket 507 is fixed to the other end of the connecting rod 509.

[0021] It should be noted that, except for valve pipe 502, all other structures on the check valve are in duplicate. Both ends of valve pipe 502 are fixedly connected to water delivery pipes 6. Valve stem 504 is T-shaped, and a second return spring 511 is fixed between the cross-section of valve stem 504 and pump housing 501. When valve stem 504 moves away from diaphragm 503, piston 505 compresses the air or liquid inside pump housing 501, pushing diaphragm 503 and valve plate 508 to move, allowing brine to enter or exit pump housing 501 through the check valve. When valve stem 504 moves closer to diaphragm 503, the second return spring 511 pushes valve stem 504 and piston 505 back to their original positions, while the first return spring 510 pushes valve plate 508 back to its original position, preparing for the next brine delivery. Both the water delivery mechanism 5 and water delivery pipe 6 are made of corrosion-resistant materials.

[0022] To achieve the linkage between filtration and water delivery, a synchronization structure 7 is provided between the water delivery mechanism 5 and the drive mechanism 4. The synchronization structure 7 includes a synchronization shaft 701 rotatably mounted on the upper surface of the base 1 and an eccentric wheel 702 fixed to the top of the synchronization shaft 701. The eccentric wheel 702 is in contact with the cross-section of the valve stem 504. Specifically, the synchronization structure 7 also includes a synchronization element 703 installed between the synchronization shaft 701 and the connecting sleeve 402. The synchronization element 703 consists of a synchronization wheel 7031 fixed to the outer surface of the synchronization shaft 701 and the connecting sleeve 402 and a synchronization belt 7032 drivingly connecting the two synchronization wheels 7031. The cross-section of the valve stem 504 is in contact with the synchronization structure 7. The eccentric wheel 702 not only drives the valve stem 504 to reciprocate, but also ensures the synchronous rotation of the connecting sleeve 402 and the synchronization shaft 701 through the synchronization element 703 (synchronization wheel 7031 and synchronization belt 7032), so that the rotation of the filter cartridge 3 and the delivery of brine are synchronized, thereby improving the filtration efficiency.

[0023] It's worth noting that when the rotation speed of filter cartridge 3 is synchronized with the water delivery speed, it ensures that the water residence time on the screen is moderate. This prevents large particles from being broken into smaller particles and passing through the filter screen due to excessive rotation speed, while also preventing insufficient filtration due to insufficient rotation speed. This optimization ensures that the filtered water meets higher standards and satisfies the needs of various application scenarios.

[0024] The working principle of the above embodiments is as follows: When the drive motor 401 starts, its output shaft drives the transmission gear 405 to rotate. The transmission gear 405 meshes with the driven gear 404, thereby driving the connecting sleeve 402 to rotate. The connecting sleeve 402 drives the connecting shaft 403 and the filter cartridge 3 to rotate via a spline connection, thus performing brine filtration. The eccentric wheel 702 in the synchronization structure 7 rotates with the rotation of the synchronization shaft 701. Its contour fits against the cross-section of the valve stem 504, thereby pushing the valve stem 504 to reciprocate inside the pump housing 501. When the valve stem 504 moves away from the diaphragm 503, the piston 505 compresses the air or liquid inside the pump housing 501, pushing the diaphragm... The movement of the diaphragm 503 and valve plate 508 allows brine to enter or exit the pump housing 501 through the check valve. When the valve stem 504 moves closer to the diaphragm 503, the second return spring 511 pushes the valve stem 504 and piston 505 to reset, while the first return spring 510 pushes the valve plate 508 to reset, preparing for the next brine delivery. The eccentric wheel 702 not only pushes the valve stem 504 to reciprocate, but also ensures the synchronous rotation of the connecting sleeve 402 and the synchronous shaft 701 through the synchronizing element 703 (synchronizing wheel 7031 and synchronous belt 7032). In this way, the rotation of the filter cartridge 3 and the delivery of brine are synchronized, improving the filtration efficiency.

[0025] The installation method, connection method, or setting method disclosed in this embodiment are all common mechanical connections. Any connection method that can achieve its beneficial effect can be implemented. In addition, all electrical components in this embodiment are electrically connected to the main controller and the power supply. The main controller can be a conventional known device such as a computer that plays a control role. Those skilled in the art can control the electrical components through simple programming. Moreover, the existing public power connection technology is also common knowledge in the field. Therefore, the specific structural composition and working principle will not be described in detail in this embodiment.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0027] 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 brine filter for the preparation of caustic soda, characterized in that: The brine filter consists of a filter box (2), a filter cylinder (3) and a drive mechanism (4) mounted on a base (1). The drive mechanism (4) includes a drive motor (401) fixed to the upper surface of the base (1), a connecting sleeve (402) rotatably mounted inside the filter box (2), a connecting shaft (403) fixed to the lower surface of the filter cylinder (3) and splinedly connected to the connecting sleeve (402), and a transmission component mounted between the connecting sleeve (402) and the drive motor (401). A water conveying mechanism (5) is provided on the base (1), and a synchronization structure (7) is provided between the water conveying mechanism (5) and the driving mechanism (4). The water delivery mechanism (5) includes a pump housing (501), a diaphragm (503) fixed inside the pump housing (501), a check valve fixedly connected to one end of the pump housing (501), and a piston (505) reciprocating inside the pump housing (501). A valve stem (504) extending to the outside of the pump housing (501) is fixed on the side of the piston (505) away from the diaphragm (503).

2. A brine filter in the caustic soda preparation process according to claim 1, characterized in that: The filter box (2) is hollow inside and has an open top side. The filter cylinder (3) is installed inside the filter box (2).

3. A brine filter for caustic soda preparation according to claim 1, characterized in that: The two ends of the connecting sleeve (402) penetrate the interior of the filter box (2). The transmission component includes a meshing transmission gear (405) and a driven gear (404), and the transmission gear (405) and the driven gear (404) are of different sizes. The transmission gear (405) is fixed on the output shaft of the drive motor (401), and the driven gear (404) is fixed on the bottom end of the connecting sleeve (402).

4. A brine filter in the caustic soda preparation process according to claim 1, characterized in that: The check valve includes a valve tube (502), an abutment block (506) fixed inside the valve tube (502), and a mounting bracket (507). A connecting rod (509) is provided through the mounting bracket (507). One end of the connecting rod (509) is fixed with a valve plate (508) that abuts against the abutment block (506), and the other end of the connecting rod (509) is fixed with a first return spring (510) that is fixed to the outer surface of the mounting bracket (507).

5. A brine filter for caustic soda preparation according to claim 4, characterized in that: Except for the valve tube (502), the check valve has two of each of its structures. Both ends of the valve tube (502) are fixedly connected to water supply pipes (6).

6. A brine filter in the caustic soda preparation process according to claim 1, characterized in that: The valve stem (504) is T-shaped, and its cross-section fits the synchronous structure (7). A second return spring (511) is fixed between the cross-section of the valve stem (504) and the pump housing (501).

7. A brine filter for caustic soda preparation according to claim 6, characterized in that: The synchronization structure (7) includes a synchronization shaft (701) rotatably mounted on the upper surface of the base (1) and an eccentric wheel (702) fixed to the top of the synchronization shaft (701). The eccentric wheel (702) is in contact with the cross section of the valve stem (504).

8. A brine filter for caustic soda preparation according to claim 7, characterized in that: The synchronization structure (7) further includes a synchronization element (703) installed between the synchronization shaft (701) and the connecting sleeve (402). The synchronization element (703) consists of a synchronization wheel (7031) fixed to the outer surface of the synchronization shaft (701) and the connecting sleeve (402) and a synchronization belt (7032) that drives between the two synchronization wheels (7031).

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