A nano flat plate ceramic membrane pretreatment device

Abstract

This utility model discloses a nano-flat ceramic membrane pretreatment device, relating to the field of filtration equipment technology. It includes a treatment box with multiple support legs at the bottom and a drain pipe with a valve at the bottom. The top of the treatment box has a cover with a water inlet pipe. Multiple support blocks are fixedly installed inside the treatment box. An adjustable filter membrane mechanism includes a first frame, a second frame, threaded rods, and threaded sleeves. Ceramic membrane assemblies are fixedly installed inside both the first and second frames, with the ceramic membrane assemblies located close to the top of the first and second frames. Four threaded rods are provided, arranged in pairs. This utility model optimizes the fluid dynamics between the two sets of ceramic membrane assemblies by adjusting the spacing, thereby improving filtration efficiency and helping to control flow rate and pressure drop. This ensures that the ceramic membrane assemblies maintain optimal performance under different operating conditions, making it highly practical.

Description

Technical Field

[0001] This utility model relates to the field of filtration equipment technology, and in particular to a nano-flat ceramic membrane pretreatment device. Background Technology

[0002] Nickel sulfate, as an important nickel compound, is widely used in electroplating, battery materials, catalysts, and other fields. Wastewater treatment is a crucial step in the nickel sulfate production process, and the application of nano-flat ceramic membrane pretreatment technology provides an effective solution to the wastewater treatment challenges in the nickel sulfate industry. Wastewater generated during nickel sulfate production is characterized by its complex composition, high heavy metal content, and difficulty in treatment. These characteristics make traditional wastewater treatment methods insufficient to meet environmental protection requirements. This is because nickel sulfate production wastewater typically contains high concentrations of nickel ions and other heavy metals, such as copper and zinc. These heavy metals not only pose serious environmental hazards but also have recycling value. Nano-flat ceramic membranes can effectively retain heavy metal ions, achieving separation from water and creating conditions for subsequent resource recovery. The high separation precision of the ceramic membrane (down to the nanometer level) allows for precise control of the molecular weight cutoff, ensuring complete removal of heavy metal ions.

[0003] Existing nano-flat ceramic membrane pretreatment equipment sometimes employs a series ceramic membrane filtration mechanism. For example, when old membrane modules cannot be used for high-pollution load filtration at the inlet of the filtration equipment, they are removed, and new membrane modules are installed near the inlet. The old membrane modules are then installed near the outlet for low-pollution load filtration, replacing the old modules and extending the overall lifespan of both new and old modules, reducing unnecessary waste and losses. However, the spacing between the new and old membrane modules is generally not adjustable. With a fixed spacing design, the inlet and outlet sections of the series membrane modules will naturally develop a velocity difference due to the pressure gradient. The inlet section has a high velocity, which easily generates turbulence and insufficient shear force; the outlet section has a low velocity, which easily forms dead zones and advection. This uneven flow field distribution leads to inconsistent fouling rates on the membrane surface, affecting the overall treatment effect and failing to optimize the hydrodynamic conditions between the membrane modules, resulting in low filtration efficiency. Therefore, a nano-flat ceramic membrane pretreatment equipment is urgently needed to solve the above technical problems. Utility Model Content

[0004] This utility model discloses a nano-flat ceramic membrane pretreatment device. It features an adjustable filter membrane mechanism, allowing for the synchronous rotation of two threaded sleeves before operation. These sleeves, in conjunction with two sets of threaded rods at the first and second frames, synchronously move the first and second frames closer together or further apart, quickly and easily adjusting the distance between them. This, in turn, allows for quick and easy adjustment of the distance between the two ceramic membrane groups. After adjustment, the first and second frames can be installed inside the treatment chamber, the cover closed, and locked in place, enabling the filtration and recovery of nickel sulfate wastewater. Because the distance between the two ceramic membrane groups is easily adjustable, the fluid dynamics between them can be optimized, improving filtration efficiency and helping to control flow rate and pressure drop. This ensures the ceramic membrane groups maintain optimal performance under different operating conditions, thus solving the problems in the prior art.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model discloses a nano-flat ceramic membrane pretreatment device, including a treatment box, a number of support legs at the bottom of the treatment box, a drain pipe with a valve at the bottom of the treatment box, a box cover at the top of the treatment box, a water inlet pipe at the box cover, and a number of support blocks fixedly installed inside the treatment box.

[0007] An adjustable filter membrane mechanism includes a first frame, a second frame, threaded rods, and threaded sleeves. Ceramic membrane assemblies are fixedly installed inside both the first and second frames, with the ceramic membrane assemblies located near the top of the first and second frames. Four threaded rods are provided, arranged in pairs. Two threaded rods in the same pair are fixedly installed on both sides of the first and second frames using locking nuts. Limiting rings are fixedly sleeved on the outside of each threaded rod. The threaded rods at the first frame are designed to face downwards, while those at the second frame are designed to face upwards. Two threaded sleeves are provided, each threadedly connected to a threaded rod at the first frame and a threaded rod at the second frame. Both the first and second frames are located inside the processing chamber and match its internal dimensions. The first frame is positioned above the second frame, and the bottom of the second frame abuts against the top of multiple support blocks.

[0008] A reinforcing support mechanism is located inside the first frame and the second frame.

[0009] Furthermore, each side of the box cover is provided with two first connecting ears, and each side of the processing box is provided with two second connecting ears. The first connecting ears and the second connecting ears are connected by bolts.

[0010] Furthermore, a rectangular positioning frame is provided at the bottom of the box cover, and a sealing gasket layer is attached and fixed to the outside of the positioning frame at the bottom of the box cover.

[0011] Furthermore, the ceramic membrane assemblies inside the first and second frames are both nanoplate ceramic membranes.

[0012] Furthermore, two lifting rods are fixedly connected to the top of both the first and second frames, and the two lifting rods in the same group are designed to be diagonally distributed.

[0013] Furthermore, the reinforcing support mechanism includes a central block and extended support strips. There are two central blocks, each of which is circular. Multiple extended support strips are fixedly connected at equal intervals to the outer circumference of the central block. The ends of the two sets of extended support strips away from the central block are fixedly connected to the inner sides of the first frame and the second frame, respectively. The tops of the two sets of extended support strips are respectively attached to the bottom of the ceramic diaphragm group inside the first frame and the second frame.

[0014] Furthermore, the interior of the extended support strip has multiple through holes, the diameter of which is larger than the aperture of the ceramic diaphragm assembly.

[0015] The present invention has the following advantages over the prior art:

[0016] 1. This technical solution features an adjustable filter membrane mechanism. Before operation, the distance between the first and second frames in the adjustable filter membrane mechanism can be adjusted according to actual needs, thereby adjusting the distance between the two ceramic membrane groups. After adjustment, the first and second frames can be installed inside the treatment box, the box cover can be closed and locked, and the filtration and recovery treatment of nickel sulfate wastewater can begin. Since the distance between the two ceramic membrane groups is easy to adjust, the fluid dynamics between the two ceramic membrane groups can be optimized by adjusting the distance, thereby improving the filtration efficiency and helping to control the flow rate and pressure drop. This allows the ceramic membrane groups to maintain optimal performance under different operating conditions, making it highly practical.

[0017] 2. This technical solution incorporates a reinforcing support mechanism, which significantly enhances the support strength of the ceramic membrane assembly during operation. The support is also more uniform, effectively reducing deformation and damage to the ceramic membrane assembly during filtration, extending its overall service life, and further improving the practicality of the device. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the 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.

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of this utility model from another perspective;

[0021] Figure 3 This is an exploded view of the threaded sleeve installation structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the connection structure between the first frame and the second frame of this utility model;

[0023] Figure 5 This is a schematic diagram of the threaded rod installation structure of this utility model;

[0024] Figure 6 This is a bottom view of the box cover structure of this utility model.

[0025] In the diagram: 1. Treatment box; 2. Drain pipe; 3. Box cover; 4. Support block; 5. Adjustable filter membrane mechanism; 501. First frame; 502. Second frame; 503. Threaded rod; 504. Threaded sleeve; 505. Ceramic membrane assembly; 506. Limiting ring; 507. Lifting rod; 6. Reinforcing support mechanism; 601. Center block; 602. Extension support bar; 603. Through hole; 7. First connecting ear; 8. Second connecting ear; 9. Bolt; 10. Positioning frame; 11. Sealing gasket; 12. Water inlet pipe. Detailed Implementation

[0026] 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.

[0027] In the description of this utility model, it should be understood that the terms "surface", "side", "gap", "peripheral", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Specific Implementation Example 1:

[0029] Reference Figures 1-5 A nano-flat ceramic membrane pretreatment device includes a treatment box 1, the bottom of the treatment box 1 is provided with multiple support legs, and the bottom of the treatment box 1 is provided with a drain pipe 2 with a valve, the top of the treatment box 1 is provided with a box cover 3, the box cover 3 is provided with a water inlet pipe 12, and multiple support blocks 4 are fixedly installed inside the treatment box 1.

[0030] The adjustable filter membrane mechanism 5 includes a first frame 501, a second frame 502, threaded rods 503, and threaded sleeves 504. Ceramic membrane assemblies 505 are fixedly installed inside both the first frame 501 and the second frame 502, with the ceramic membrane assemblies 505 located near the top of the first frame 501 and the second frame 502. Four threaded rods 503 are provided, arranged in pairs. Two threaded rods 503 in the same pair are fixedly installed on both sides of the first frame 501 and the second frame 502 using locking nuts. Limiting rings 506 are fixedly sleeved around the outside of each threaded rod 503. The threaded rods 503 at the first frame 501 are installed facing downwards. The design features an upward-facing threaded rod 503 at the second frame 502. The threaded sleeve 504 has two internal threads with opposite directions. Two threaded sleeves 504 are provided, each screwed to the threaded rod 503 at the first frame 501 and the threaded rod 503 at the second frame 502. Both the first frame 501 and the second frame 502 are located inside the processing box 1 and match its internal dimensions. The first frame 501 is positioned above the second frame 502, and the bottom of the second frame 502 abuts against the top of multiple support blocks 4. A reinforcing support mechanism 6 is located inside the first frame 501 and the second frame 502.

[0031] Two first connecting ears 7 are provided on both sides of the lid 3, and two second connecting ears 8 are provided on both sides of the processing box 1. The first connecting ears 7 and the second connecting ears 8 are locked together by bolts 9. A rectangular positioning frame 10 is provided at the bottom of the lid 3, and a sealing gasket 11 is attached and fixed to the outside of the positioning frame 10 at the bottom of the lid 3. The ceramic membrane group 505 inside the first frame 501 and the second frame 502 are both nano-flat ceramic membranes. Two lifting rods 507 are fixedly connected to the top of the first frame 501 and the second frame 502, and the two lifting rods 507 in the same group are designed to be diagonally distributed.

[0032] In the specific implementation process, before work begins, the two threaded sleeves 504 can be rotated synchronously according to actual needs. This, along with the two sets of threaded rods 503 at the first frame 501 and the second frame 502, synchronously drives the first frame 501 and the second frame 502 to move closer to each other or move away from each other. This allows for quick and convenient adjustment of the distance between the first frame 501 and the second frame 502, and subsequently, quick and convenient adjustment of the distance between the two ceramic membrane groups 505. After adjustment, the first frame 501 and the second frame 502 can be installed inside the treatment box 1. The box cover 3 can then be closed and locked in place, and the filtration and recycling treatment of nickel sulfate wastewater can begin. Since the distance between the two sets of ceramic membrane groups 505 is easy to adjust, the fluid dynamics between the two sets of ceramic membrane groups 505 can be optimized by adjusting the distance, thereby improving the filtration efficiency and helping to control the flow rate and pressure drop, so that the ceramic membrane group 505 can maintain optimal performance under different operating conditions.

[0033] Among them, the locking bolt 9 can ensure that the box cover 3 and the processing box 1 are locked and fixed, ensuring the connection strength and connection stability of the two;

[0034] The positioning frame 10 can assist in the docking connection between the box cover 3 and the processing box 1, while the sealing gasket 11 can ensure the sealing of the connection after the two are locked together.

[0035] Among them, nano-flat ceramic membranes can better filter and retain heavy metal ions, achieving separation from water and creating conditions for subsequent resource recycling. Specific Implementation Example 2:

[0037] Reference Figure 2 and Figure 6 In a preferred embodiment, the reinforcing support mechanism 6 includes a central block 601 and extension support bars 602. There are two central blocks 601, which are circular. Multiple extension support bars 602 are fixedly connected at equal intervals on the outer circumference of the central block 601. The ends of the two sets of extension support bars 602 away from the central block 601 are fixedly connected to the inner sides of the first frame 501 and the second frame 502, respectively. The tops of the two sets of extension support bars 602 are respectively attached to the bottom of the ceramic diaphragm group 505 inside the first frame 501 and the second frame 502.

[0038] The extension support bar 602 has multiple through holes 603 inside, and the diameter of the through holes 603 is larger than the aperture of the ceramic diaphragm group 505.

[0039] In the specific implementation process, during operation, the central block 601 can be used in conjunction with multiple extended support bars 602 to greatly improve the support strength of the ceramic membrane assembly 505 and the support uniformity is good, which can effectively reduce the deformation and damage of the ceramic membrane assembly 505 during the filtration process and extend the overall service life of the ceramic membrane assembly 505.

[0040] The 603 through-hole design facilitates water flow and improves filtration efficiency.

[0041] Working principle: Before use, the two threaded sleeves 504 can be rotated synchronously according to actual needs. This, along with the two sets of threaded rods 503 at the first frame 501 and the second frame 502, synchronously drives the first frame 501 and the second frame 502 to move closer to each other or move away from each other. This allows for quick and convenient adjustment of the distance between the first frame 501 and the second frame 502, and subsequently, quick and convenient adjustment of the distance between the two ceramic membrane groups 505. After adjustment, the first frame 501 and the second frame 502 can be installed inside the treatment box 1. The box cover 3 can be closed and locked in place, and the filtration and recycling treatment of nickel sulfate wastewater can begin. Since the distance between the two sets of ceramic membrane groups 505 is easy to adjust, the fluid dynamics between the two sets of ceramic membrane groups 505 can be optimized by adjusting the distance, thereby improving the filtration efficiency and helping to control the flow rate and pressure drop, so that the ceramic membrane group 505 can maintain optimal performance under different operating conditions.

[0042] Furthermore, during operation, the central block 601, in conjunction with multiple extended support bars 602, can greatly enhance the support strength of the ceramic membrane assembly 505 and provide good support uniformity. This effectively reduces deformation and damage to the ceramic membrane assembly 505 during filtration, extending the overall service life of the ceramic membrane assembly 505.

[0043] 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 the specific implementations described. 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 nano-flat ceramic membrane pretreatment device, comprising a treatment chamber (1), characterized in that: The bottom of the treatment box (1) is provided with multiple support legs, and the bottom of the treatment box (1) is provided with a drain pipe (2) with a valve. The top of the treatment box (1) is provided with a box cover (3), and the box cover (3) is provided with a water inlet pipe (12). Multiple support blocks (4) are fixedly installed inside the treatment box (1). An adjustable filter membrane mechanism (5) includes a first frame (501), a second frame (502), threaded rods (503), and threaded sleeves (504). Ceramic membrane assemblies (505) are fixedly installed inside both the first frame (501) and the second frame (502), and the ceramic membrane assemblies (505) are located close to the top of the first frame (501) and the second frame (502). Four threaded rods (503) are provided, arranged in pairs. Two threaded rods (503) in the same pair are fixedly installed on both sides of the first frame (501) and the second frame (502) using locking nuts. Limiting rings (506) are fixedly sleeved around the outside of each threaded rod (503). The threaded rod (503) at the first frame (501) is designed to be installed downwards, and the threaded rod (503) at the second frame (502) is designed to be installed upwards. The threaded sleeve (504) has two internal threads with opposite thread directions inside. There are two threaded sleeves (504). The threaded sleeves (504) are screwed to the threaded rod (503) at the first frame (501) and the threaded rod (503) at the second frame (502) respectively. The first frame (501) and the second frame (502) are both located inside the processing box (1) and match the internal dimensions of the processing box (1). The first frame (501) is located above the second frame (502). The bottom of the second frame (502) abuts against the top of multiple support blocks (4). A reinforcing support mechanism (6) is located inside the first frame (501) and the second frame (502).

2. The nano-flat ceramic membrane pretreatment equipment according to claim 1, characterized in that: The cover (3) has two first connecting ears (7) on both sides, and the processing box (1) has two second connecting ears (8) on both sides. The first connecting ears (7) and the second connecting ears (8) are locked together by bolts (9).

3. The nano-flat ceramic membrane pretreatment equipment according to claim 1, characterized in that: The bottom of the box cover (3) is provided with a rectangular positioning frame (10), and a sealing gasket layer (11) is attached and fixed to the outside of the positioning frame (10) at the bottom of the box cover (3).

4. The nano-flat ceramic membrane pretreatment equipment according to claim 1, characterized in that: The ceramic membrane group (505) inside the first frame (501) and the second frame (502) are both nano-flat ceramic membranes.

5. The nano-flat ceramic membrane pretreatment equipment according to claim 1, characterized in that: The top of the first frame (501) and the second frame (502) are each fixedly connected to two lifting rods (507), and the two lifting rods (507) in the same group are designed to be diagonally distributed.

6. The nano-flat ceramic membrane pretreatment equipment according to claim 1, characterized in that: The reinforcing support mechanism (6) includes a central block (601) and extension support bars (602). There are two central blocks (601). The central blocks (601) are circular. Multiple extension support bars (602) are fixedly connected at equal intervals on the outer circumference of the central blocks (601). The ends of the two sets of extension support bars (602) away from the central blocks (601) are fixedly connected to the inner sides of the first frame (501) and the second frame (502), respectively. The tops of the two sets of extension support bars (602) are respectively attached to the bottom of the ceramic diaphragm group (505) inside the first frame (501) and the second frame (502).

7. The nano-flat ceramic membrane pretreatment equipment according to claim 6, characterized in that: The extension support strip (602) has multiple through holes (603) inside, and the diameter of the through holes (603) is larger than the aperture of the ceramic diaphragm group (505).

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