Diaphragm filter device

Abstract

The utility model relates to the technical field of filter devices, in particular to a diaphragm filter device which comprises a filter cartridge, a guide hopper, a multi-stage supplement filter mechanism and a receiving hopper, a filtering bin is formed in the filtering cylinder, a multi-stage supplement filtering mechanism used for filtering impurities in a graded mode is arranged in the filtering bin, a guide hopper playing a role in guiding liquid is arranged at the lower end of the multi-stage supplement filtering mechanism, a first-stage discharging opening is formed in the center of the lower end of the guide hopper, and a filtering net is fixedly installed in the first-stage discharging opening; a receiving hopper for preventing liquid from leaking is arranged at the upper end of the filter cartridge; according to the utility model, the adsorbents are physically separated through the diaphragms, cross interference of working areas of different adsorbents is avoided, each adsorbent can give full play to the adsorption advantage, and through the design of the connecting sleeve and the connecting rod, a user can conveniently carry out purification according to specific components and purification requirements of wastewater. The number of fixing rings and the types and layers of adsorbents can be flexibly adjusted.

Description

Technical Field

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

[0002] In the liquid purification process in many fields such as chemical engineering, environmental protection, and pharmaceuticals, the use of multiple adsorbents for graded adsorption has become an important means to improve the purification effect. Different adsorbents have unique adsorption selectivity for specific impurities, ions or molecules. By using them in a reasonable combination, deep purification of multiple pollutants in liquids can be achieved.

[0003] In traditional filtration devices, multiple adsorbents are often directly mixed and filled in the filtration space. There is a lack of effective physical separation between the adsorbents, which easily leads to cross-interference between the working areas of different adsorbents. This not only fails to give full play to their respective adsorption advantages, but may also cause a decrease in adsorption performance due to chemical reactions between adsorbents, ultimately seriously affecting the liquid purification effect.

[0004] Therefore, to address the problem that traditional filtration devices often lead to cross-interference between the working areas of different adsorbents, which ultimately severely affects the liquid purification effect, a diaphragm filter device can be designed to physically separate different adsorbents through a diaphragm, thereby facilitating the solution of the above problem. Utility Model Content

[0005] In order to overcome the shortcomings of traditional filtration devices, which are prone to cross-interference between the working areas of different adsorbents and ultimately seriously affect the liquid purification effect, this utility model provides a diaphragm filter device.

[0006] The technical solution is as follows: A diaphragm filter device includes a filter cylinder, a guide hopper, a multi-stage supplementary filtration mechanism, and a receiving hopper; the filter cylinder has a filter chamber inside, and the filter chamber has a multi-stage supplementary filtration mechanism for classifying and filtering impurities. The lower end of the multi-stage supplementary filtration mechanism has a guide hopper that guides the liquid. The lower center of the guide hopper has a primary discharge port, and a filter screen is fixedly installed inside the primary discharge port. The upper end of the filter cylinder has a receiving hopper to prevent liquid leakage.

[0007] Furthermore, the multi-stage supplementary filtration mechanism includes multiple sets of fixing rings, each with a fixing groove on its inner wall, and a diaphragm sheet inside the fixing groove.

[0008] Furthermore, the upper ends of the multiple sets of fixing rings are all surrounded by multiple sets of connecting sleeves, and the lower ends of the multiple sets of fixing rings are all surrounded by multiple sets of connecting rods corresponding to the connecting sleeves. The multiple sets of fixing rings are sequentially engaged and connected by the connecting sleeves and connecting rods.

[0009] Furthermore, the guide hopper has a guide groove inside, the primary discharge port is located at the bottom center of the guide groove, and multiple sets of connecting holes corresponding to the connecting rods are opened around the upper edge of the guide hopper.

[0010] Furthermore, a limiting groove is provided at the upper edge of the primary discharge port, and a limiting ring corresponding to the limiting groove is fitted on the outer end of the filter screen, with the limiting ring matching and engaging with the limiting groove.

[0011] Furthermore, the upper end of the filter cartridge is provided with a connecting ring, and the surface of the connecting ring is provided with a mating groove.

[0012] Furthermore, a secondary discharge port corresponding to the primary discharge port is opened at the bottom of the filter chamber, and a handle is provided at the outer end of the filter cylinder.

[0013] Furthermore, the lower end of the receiving bucket is provided with a rotating ring, the outer end of which is surrounded by multiple sets of anti-slip teeth, and the lower end of the rotating ring is provided with a docking retaining ring, which matches and engages with the docking retaining groove.

[0014] The beneficial effects are that, compared to traditional filtration devices, which are prone to cross-interference between the working areas of different adsorbents, this application avoids cross-interference between the working areas of different adsorbents by physically separating the adsorbents with diaphragms, allowing each adsorbent to fully exert its adsorption advantages. The design of the connecting sleeve and connecting rod allows users to flexibly adjust the number of fixing rings and the type and number of adsorbents according to the specific composition of the wastewater and purification requirements, making the device suitable for different liquid purification scenarios and greatly enhancing its versatility and flexibility. The guide groove 6 guides the orderly flow of liquid, preventing liquid stagnation or disorderly flow within the filter cartridge, ensuring efficient filtration. The limiting structure of the filter screen ensures stable operation, further improving the purification quality of the liquid. The connection structure between the receiving hopper and the filter cartridge, through the cooperation of the rotating ring and the docking retainer and docking groove, enables quick installation and disassembly. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the diaphragm filter device of this utility model;

[0016] Figure 2 This is a three-dimensional structural diagram of the filter cartridge of this utility model;

[0017] Figure 3 This is a three-dimensional structural diagram of the guide bucket and filter screen combination of this utility model;

[0018] Figure 4 This is a three-dimensional structural diagram of the multi-stage supplementary filtration mechanism of this utility model;

[0019] Figure 5 This is a schematic diagram of the three-dimensional structure of the receiving bucket and rotating ring combination of this utility model.

[0020] Explanation of reference numerals in the attached drawings: 1. Filter cylinder; 101. Filter chamber; 102. Secondary discharge port; 103. Handle; 104. Connecting ring; 105. Docking groove; 2. Guide hopper; 3. Multi-stage supplementary filtration mechanism; 301. Fixing ring; 302. Fixing groove; 303. Diaphragm sheet; 304. Connecting sleeve; 305. Connecting rod; 4. Receiving hopper; 5. Rotating ring; 6. Guide groove; 7. Primary discharge port; 8. Limiting groove; 9. Connecting hole; 10. Limiting ring; 11. Filter screen; 12. Anti-slip teeth; 13. Docking ring. Detailed Implementation

[0021] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0022] In many fields such as chemical engineering, environmental protection, and pharmaceuticals, where the purity requirements for liquids are extremely high, liquid purification has become an indispensable key link in the production process. The use of multiple adsorbents for graded adsorption, with their excellent purification capabilities, is gradually becoming the core means to improve the purification effect.

[0023] Adsorbents, as a key element of graded adsorption technology, come in a wide variety and each has its own characteristics. Activated carbon is a common adsorbent. It has a rich pore structure and a huge specific surface area, and can effectively remove pigments, odors and some organic pollutants from liquids through physical adsorption. Its well-developed microporous structure allows small molecule pollutants to quickly diffuse into the pores and be firmly adsorbed, thereby achieving the purpose of purifying the liquid. For example, in the food and beverage industry, activated carbon is often used to remove pigments and odors from fruit juices and improve product quality.

[0024] Ion exchange resins are another important type of adsorbent. They mainly selectively adsorb ions in liquids through ion exchange. Different types of ion exchange resins have unique affinities for specific ions. For example, strongly acidic cation exchange resins can efficiently adsorb cations in liquids, while strongly basic anion exchange resins have good adsorption effects on anions. In the field of water treatment, ion exchange resins are often used to remove calcium, magnesium and other ions from water, reduce water hardness and prevent scaling.

[0025] Molecular sieves are also commonly used adsorbents in liquid purification. They have a uniform microporous structure, acting like a molecular-level "sieve," and can selectively adsorb molecules based on their size and shape. For example, 5A molecular sieves have pore sizes that allow for diameters smaller than [missing information]. Molecular sieves allow molecules to enter the pores, thereby achieving the separation and purification of specific molecules. In the field of gas drying and separation, molecular sieves are widely used to remove moisture and separate gases of different components.

[0026] The staged adsorption technology is developed based on the unique adsorption selectivity of different adsorbents for specific impurities, ions, or molecules. Its principle is to rationally select different adsorbents according to the type, properties, and concentration of pollutants in the liquid, and perform staged adsorption in a certain order. In actual operation, adsorbents with good adsorption effect on macromolecular pollutants or pollutants with high concentrations are first used to remove most of the main pollutants and reduce the load of subsequent treatment. Then, adsorbents with high selectivity for specific impurities or trace pollutants are used for deep purification to meet higher purity requirements.

[0027] In the chemical industry, staged adsorption technology plays a vital role. During the refining process of petrochemical products, liquid raw materials often contain various impurities, such as sulfides, nitrides, and heavy metal ions. These impurities not only affect the quality and performance of the products but also cause corrosion to equipment. By employing staged adsorption technology, metal oxide adsorbents are first used to remove some sulfides and nitrides, reducing their content. Then, chelating resin adsorbents are used to further remove heavy metal ions, thereby obtaining high-purity chemical products. In addition, in the production of fine chemical products, staged adsorption technology can also be used to separate and purify complex organic mixtures, improving product purity and yield.

[0028] Environmental protection is also an important application scenario for graded adsorption technology. In industrial wastewater treatment, wastewater often contains a variety of pollutants, such as organic matter, heavy metal ions, and acidic and alkaline substances. Graded adsorption technology can first use activated carbon to adsorb and remove most of the organic matter and some color, reducing the chemical oxygen demand of the wastewater. Then, ion exchange resin is used to adsorb and remove heavy metal ions, so that the wastewater meets the discharge standards. In the advanced treatment stage of sewage treatment plants, graded adsorption technology can also be used to remove residual trace pollutants in the water, further improving the quality of the effluent and realizing the recycling of water resources.

[0029] In the pharmaceutical industry, the purity requirements for liquid raw materials and products are extremely high. Any impurities can affect the safety and efficacy of drugs. The application of fractional adsorption technology in the pharmaceutical field is particularly crucial. In the production process of antibiotics, fermentation broth contains a large number of impurities, such as proteins, pigments, and pyrogens. Through fractional adsorption, macroporous adsorption resins are first used to remove most of the proteins and pigments, and then specific adsorbents are used to remove pyrogens, thereby obtaining high-purity antibiotic products. In addition, fractional adsorption technology can also effectively remove impurities in the purification process of traditional Chinese medicine extracts, improving the quality and stability of traditional Chinese medicine preparations.

[0030] Example

[0031] like Figures 1-5As shown, a diaphragm filter device includes a filter cylinder 1, a guide hopper 2, a multi-stage supplementary filtration mechanism 3, and a receiving hopper 4. The filter cylinder 1 has a filter chamber 101 inside, and the filter chamber 101 has a multi-stage supplementary filtration mechanism 3 for classifying and filtering impurities. The lower end of the multi-stage supplementary filtration mechanism 3 has a guide hopper 2 that guides the liquid. The lower end of the guide hopper 2 has a primary discharge port 7 at its center. A filter screen 11 is fixedly installed inside the primary discharge port 7. The upper end of the filter cylinder 1 has a receiving hopper 4 for preventing liquid leakage.

[0032] The multi-stage supplementary filtration mechanism 3 includes multiple sets of fixing rings 301. The inner walls of each set of fixing rings 301 are provided with fixing slots 302. The fixing slots 302 are provided with diaphragms 303. Through the design of fixing rings 301 and fixing slots 302, the diaphragms 303 are stably installed, and different adsorbents are physically separated, effectively avoiding mutual cross-interference between the working areas of different adsorbents.

[0033] Multiple sets of fixing rings 301 are surrounded by multiple sets of connecting sleeves 304 at their upper ends, and multiple sets of connecting rods 305 corresponding to the connecting sleeves 304 are surrounded by multiple sets of connecting rods 305 at their lower ends. The multiple sets of fixing rings 301 are sequentially engaged and connected by the connecting sleeves 304 and the connecting rods 305. Through the connecting sleeves 304 and the connecting rods 305, users can flexibly increase or decrease the number of fixing rings 301 according to specific liquid purification needs, thereby adjusting the number and type of adsorbent layers.

[0034] The guide hopper 2 has a guide groove 6 inside, and the first-stage discharge port 7 is located at the bottom center of the guide groove 6. Multiple sets of connecting holes 9 corresponding to the connecting rods 305 are opened around the upper edge of the guide hopper 2. The design of the guide groove 6 can play a good guiding role for the liquid after multi-stage adsorption and purification, so that the liquid can flow smoothly to the first-stage discharge port 7.

[0035] A limiting groove 8 is provided at the upper edge of the primary discharge port 7. A limiting ring 10 corresponding to the limiting groove 8 is fitted on the outer end of the filter screen 11. The limiting ring 10 matches and engages with the limiting groove 8. The filter screen 11 is firmly fixed at the primary discharge port 7 through the limiting ring 10 and the limiting groove 8.

[0036] The upper end of the filter cylinder 1 is provided with a connecting ring 104, and the surface of the connecting ring 104 is provided with a docking groove 105. The connecting ring 104 and the docking groove 105 provide precise positioning for the connection between the filter cylinder 1 and the receiving hopper 4.

[0037] A secondary discharge port 102 corresponding to the primary discharge port 7 is opened in the bottom of the filter chamber 101. A handle 103 is provided at the outer end of the filter cylinder 1, which provides a convenient gripping part for the staff.

[0038] The lower end of the receiving hopper 4 is provided with a rotating ring 5, and the outer end of the rotating ring 5 is surrounded by multiple sets of anti-slip teeth 12. The lower end of the rotating ring 5 is provided with a docking retaining ring 13, which matches and engages with the docking groove 105. Through the design of the rotating ring 5 and the anti-slip teeth 12, it is convenient for the staff to connect or separate the receiving hopper 4 from the filter cylinder 1 by rotating the rotating ring 5.

[0039] During operation, the operator first places the guide bucket 2 at the bottom of the filter chamber 101. At the first-stage discharge port 7, the limiting ring 10 at the outer end of the filter screen 11 is matched and engaged with the limiting groove 8 to fix the filter screen 11. Then, according to the filtration requirements, an appropriate number of fixing rings 301 are selected. The fixing rings 301 with diaphragm sheets 303 are sequentially engaged and connected to the connecting rod 305 through the connecting sleeve 304. During connection, the corresponding adsorbent is injected. The adsorbent is sequentially filled into the space between the fixing rings 301 at each stage. Each type of adsorbent is separated into an independent area by the diaphragm sheets 303.

[0040] Then, align the docking ring 13 at the lower end of the receiving hopper 4 with the docking groove 105 of the connecting ring 104 at the upper end of the filter cylinder 1 and rotate the rotating ring 5 to make the docking ring 13 and the docking groove 105 tightly engage, thus completing the installation of the receiving hopper 4. Next, pour the wastewater to be treated into the receiving hopper 4. After being purified by multi-layer adsorbent, it is guided to the primary discharge port 7 through the guide groove 6 of the guide hopper 2. The filter screen 11 intercepts the residual suspended solids and finally discharges it through the secondary discharge port 102.

[0041] Its working principle is as follows: when the liquid flows from top to bottom through each adsorption layer, different adsorbents selectively adsorb specific pollutants. The diaphragm 303 physically prevents the adsorbents from mixing, ensuring that each layer works independently. It is worth mentioning that the diaphragm 303 can be selected with a pore size of less than 0.4 micrometers, allowing the liquid to flow while blocking solid adsorbents. The guide groove 6 optimizes the liquid flow direction and avoids turbulence. The filter screen 11 further intercepts unadsorbed suspended matter to achieve deep purification.

[0042] Its beneficial effects are significant. The physical separation of the adsorbent by the diaphragm 303 avoids cross-interference between the working areas of different adsorbents, allowing each adsorbent to fully exert its adsorption advantages. The design of the connecting sleeve 304 and the connecting rod 305 allows users to flexibly adjust the number of fixing rings 301 and the type and number of adsorbents according to the specific composition of the wastewater and the purification requirements, making the device suitable for different liquid purification scenarios and greatly enhancing its versatility and flexibility. The guide groove 6 guides the orderly flow of liquid, preventing liquid from stagnating or flowing disorderly in the filter cartridge 1, ensuring the efficient operation of the filtration process. The limiting structure of the filter screen 11 ensures its stable operation, further improving the purification quality of the liquid. The connection structure between the receiving hopper 4 and the filter cartridge 1, and the cooperation of the rotating ring 5 and the docking retainer 13 with the docking slot 105, enable quick installation and disassembly.

Claims

1. A diaphragm filter device, comprising a filter cartridge (1); characterized in that, It also includes a guide bucket (2), a multi-stage supplementary filtration mechanism (3) and a receiving bucket (4); the filter cylinder (1) has a filter chamber (101) inside, the filter chamber (101) has a multi-stage supplementary filtration mechanism (3) for graded filtration of impurities inside, the lower end of the multi-stage supplementary filtration mechanism (3) has a guide bucket (2) for guiding the liquid, the lower end of the guide bucket (2) has a first-stage discharge port (7) at the center, the first-stage discharge port (7) has a filter screen (11) fixedly installed inside, and the upper end of the filter cylinder (1) has a receiving bucket (4) for preventing liquid leakage.

2. The diaphragm filter device according to claim 1, characterized in that, The multi-stage supplementary filtration mechanism (3) includes multiple sets of fixing rings (301), and each set of fixing rings (301) has a fixing groove (302) on its inner wall. The fixing groove (302) has a diaphragm (303) inside.

3. A diaphragm filter device according to claim 2, characterized in that, The upper ends of the multiple sets of fixing rings (301) are all surrounded by multiple sets of connecting sleeves (304), and the lower ends of the multiple sets of fixing rings (301) are all surrounded by multiple sets of connecting rods (305) corresponding to the connecting sleeves (304). The multiple sets of fixing rings (301) are sequentially engaged and connected to the connecting rods (305) through the connecting sleeves (304).

4. A diaphragm filter device according to claim 1, characterized in that, The guide hopper (2) has a guide groove (6) inside, and the first-stage discharge port (7) is located at the bottom center of the guide groove (6). Multiple sets of connecting holes (9) corresponding to the connecting rods (305) are opened around the upper edge of the guide hopper (2).

5. A diaphragm filter device according to claim 4, characterized in that, A limiting groove (8) is provided at the upper edge of the primary discharge port (7), and a limiting ring (10) corresponding to the limiting groove (8) is sleeved on the outer end of the filter screen (11). The limiting ring (10) matches and engages with the limiting groove (8).

6. A diaphragm filter device according to claim 1, characterized in that, The upper end of the filter cylinder (1) is provided with a connecting ring (104), and the surface of the connecting ring (104) is provided with a docking groove (105).

7. A diaphragm filter device according to claim 6, characterized in that, A secondary discharge port (102) corresponding to the primary discharge port (7) is opened in the bottom of the filter chamber (101), and a handle (103) is provided at the outer end of the filter cylinder (1).

8. A diaphragm filter device according to claim 7, characterized in that, The lower end of the receiving bucket (4) is provided with a rotating ring (5), and the outer end of the rotating ring (5) is surrounded by multiple sets of anti-slip teeth (12). The lower end of the rotating ring (5) is provided with a docking ring (13), which is matched and engaged with the docking groove (105).

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