Combined hollow disc ceramic membrane

Abstract

The application relates to the field of organic wastewater ceramic membrane filtering devices, and discloses a combined hollow disc ceramic membrane which comprises a supporting body, an upper separation membrane layer, a lower separation membrane layer, a connecting shaft and a first nut, the connecting shaft is connected with the supporting body by penetrating through the center through hole of the supporting body, the connecting shaft is in threaded connection with the first nut, the first nut is used for fixing the upper separation membrane layer and the lower separation membrane layer on the supporting body, the connecting shaft is hollowly arranged, the connecting shaft is provided with a through hole in the ceramic membrane, the upper and lower surfaces of the supporting body are both provided with grooves, the through hole is used for connecting the grooves on the supporting body with the connecting shaft, the two ends of the connecting shaft are respectively provided with internal threads and external threads, and the internal threads are in engagement with the external threads to connect two adjacent connecting shafts. According to the scheme, the supporting body and the separation membrane layer are formed into an integral whole through the connecting shaft and the first nut, when the number of the ceramic membranes needs to be changed, only the connecting shaft needs to be connected or removed through threads, the structure is also easy to disassemble, each part can be conveniently replaced, and the whole does not need to be scrapped.

Description

Technical Field

[0001] This invention relates to the field of ceramic membrane filtration devices for organic wastewater, and specifically to a combined hollow disc ceramic membrane. Background Technology

[0002] For treating wastewater with high concentrations of organic matter and suspended solids, such as food wastewater, molasses wastewater, landfill leachate, and aquaculture wastewater, disc ceramic membranes are a highly efficient filtration material. They contain spiral-shaped permeation channels, with the separation membrane layer located on their outer surface. During filtration, the disc ceramic membrane works by allowing the permeate to enter the internal permeation channels through its surface, and then flowing out through the hollow shaft at the center.

[0003] Most existing disc ceramic membranes are manufactured in a split-type manner and sintered as a whole. Specifically, the support body and its upper and lower membrane layers are made into blanks separately, and then the blanks are assembled and bonded together for overall sintering. The disc ceramic membranes fired in this way have good integrity, but due to the difference in shrinkage rate during overall firing, some deformation, cracking and uneven circumferential weight distribution of the ceramic membrane are often caused, which reduces the firing rate of disc ceramic membranes.

[0004] Furthermore, in practical applications, the number of disc ceramic membranes to be stacked needs to be set according to the actual situation, which requires a lot of installation and disassembly work for disc ceramic membranes. Because the existing disc ceramic membranes and hollow shafts are designed separately, multiple disc ceramic membranes pass through a hollow shaft and are fixed to the hollow shaft by bolts. Therefore, not only is installation and disassembly troublesome, but due to the limitation of the thread position, it is difficult to increase or decrease the number of ceramic membranes. Summary of the Invention

[0005] The present invention aims to provide a combined hollow disc ceramic membrane to solve the problem of inconvenient installation and disassembly of disc-type ceramic membranes.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a combined hollow disc ceramic membrane, comprising a support body, an upper separation membrane layer, and a lower separation membrane layer, and further comprising a connecting shaft and a first nut. The connecting shaft passes through the central through hole of the support body and is connected to the support body. The connecting shaft and the first nut are threadedly connected. The first nut is used to fix the upper and lower separation membrane layers to the support body. The connecting shaft is hollow and has a through hole inside the ceramic membrane. The support body has grooves on both its upper and lower surfaces. The through hole is used to connect the grooves on the support body with the connecting shaft. The two ends of the connecting shaft are respectively provided with internal threads and external threads. The internal threads and external threads mesh to connect two adjacent connecting shafts.

[0007] The principle and advantages of this solution are as follows: the support body, upper separation membrane layer and lower separation membrane layer are integrated into a whole by connecting shaft and first nut, which improves the production efficiency of ceramic membrane. When it is necessary to change the number of ceramic membranes in actual use, it is only necessary to connect two adjacent connecting shafts by meshing the internal and external threads, which is convenient for installation and disassembly. At the same time, the overall structure of ceramic membrane is easy to disassemble, and it is easy to replace individual separation membrane layers.

[0008] Preferably, as an improvement, the connecting shaft and the support body are connected by a spline connection. This connection method can better transmit torque and is relatively simple to connect.

[0009] Preferably, as an improvement, the upper separation membrane layer, the lower separation membrane layer, and the support body all have retaining strips on their opposing surfaces, and the support body has slots for installing the retaining strips. This makes the connection between the upper separation membrane layer, the lower separation membrane layer, and the support body more stable.

[0010] Preferably, as an improvement, the card slot is provided with a rubber strip, which makes the connection between the card strip and the card slot tighter.

[0011] Preferably, as an improvement, the groove is integrally formed with the support body, and the integral forming improves the overall strength of the support body.

[0012] Preferably, as an improvement, the support body has mounting grooves on both its upper and lower surfaces. These mounting grooves are used to mount the prismatic protrusions, and rubber rings are installed at the edges of the prismatic protrusions, forming grooves with the rubber rings. Using prismatic protrusions and rubber rings to form grooves is simpler and facilitates adjustment of the groove's position and shape.

[0013] Preferably, as an improvement, the support body is provided with an adjustment groove, and the center of gravity adjustment component is installed in the adjustment groove. The center of gravity adjustment component is used to adjust the center of gravity of the support body. The adjustment groove is evenly distributed on the support body. By setting the adjustment groove and the center of gravity adjustment component, the center of gravity of the support body is changed, which compensates for the problem of uneven weight distribution of the ceramic membrane, improves the high-speed rotation performance of the ceramic membrane, thereby improving the filtration effect and avoiding the problem of damage to the ceramic membrane due to vibration.

[0014] Preferably, as an improvement, the center of gravity adjusting component includes an adjusting rod and a second nut. The adjusting rod is mounted on the side wall of the adjusting groove, and the second nut is symmetrically arranged on the adjusting rod. The second nut and the adjusting rod are threadedly connected, and the threads of the symmetrically arranged second nuts are in opposite directions. Initially, the second nuts are close to each other. When the center of gravity needs to be adjusted, the second nuts are rotated to the corresponding positions to change the center of gravity of the support.

[0015] Preferably, as an improvement, the upper and lower separation membrane layers are provided with protrusions near the connecting shaft, and the protrusions are provided with through holes. The protrusions increase the connection area between the upper and lower separation membrane layers and the support, thereby enhancing the strength of the connection between the upper and lower separation membrane layers and the support. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an embodiment of the present invention.

[0017] Figure 2 This is a partial cross-sectional view of an embodiment of the present invention.

[0018] Figure 3 This is a schematic diagram of the support structure according to an embodiment of the present invention. Detailed Implementation

[0019] The following detailed description illustrates the specific implementation method:

[0020] The reference numerals in the accompanying drawings include: support 1, groove 2, upper separation membrane layer 3, lower separation membrane layer 4, connecting shaft 5, first nut 6, adjusting rod 7, and second nut 8.

[0021] The basic implementation examples are as follows: Figure 1 Appendix Figure 2 and attached Figure 3 As shown:

[0022] The modular hollow disc ceramic membrane includes a support body 1, an upper separation membrane layer 3, and a lower separation membrane layer 4. This modular ceramic membrane allows the support body 1 and the separation membrane layers to be manufactured separately and then assembled, reducing the difficulty of overall firing and increasing the success rate of disc-shaped ceramic membrane production. The upper separation membrane layer 3 and the lower separation membrane layer 4 can be manufactured using the same mold, requiring only standardized preforms and firing, reducing process time and improving the production efficiency of disc-shaped ceramic membranes. Furthermore, the support body 1 and the separation membrane layers can be replaced separately, saving on operating costs.

[0023] It also includes a connecting shaft 5 and a first nut 6. The connecting shaft 5 passes through the central through hole of the support body 1 and connects to the support body 1. The first nut 6 is used to fix the upper separation membrane layer 3 and the lower separation membrane layer 4 to the support body 1. The support body 1, the upper separation membrane layer 3 and the lower separation membrane layer 4 are formed into a whole by the connecting shaft 5 and the first nut 6, which facilitates installation and disassembly when the number of ceramic membranes needs to be changed in actual use.

[0024] The connecting shaft 5 is hollow and has a through hole inside the ceramic membrane. The through hole is used to connect the groove 2 on the support body 1 with the connecting shaft 5.

[0025] The connecting shaft 5 and the support body 1 are connected by a spline connection to improve the torque transmission capability between them. Alternatively, the connecting shaft 5 can have an axial groove to engage with the spline. Both ends of the connecting shaft 5 are threaded. The threads facilitate connection. Both ends of the connecting shaft 5 have internal and external threads, respectively, with opposite directions. In this embodiment, the diameter of the end with the internal thread is larger than the diameter of the end with the external thread, facilitating rapid assembly of multiple ceramic membranes. Alternatively, in this embodiment, connecting sleeves corresponding to the connecting shaft 5 can be used to connect multiple connecting shafts 5.

[0026] The support body 1 has grooves 2 on both its upper and lower surfaces, and the grooves 2 communicate with the central through hole of the support body 1. In this embodiment, the grooves 2 are formed in two ways, one of which is that the grooves 2 are integrally formed with the support body 1, as shown in the attached figure. Figure 3 As shown, one-piece molding improves the overall strength of the support body 1; another method is to have mounting grooves on both the upper and lower surfaces of the support body 1, which are used to install prismatic protrusions. Rubber rings are installed at the edges of the prismatic protrusions, and the rubber rings and prismatic protrusions form grooves 2. Using prismatic protrusions and rubber rings to form grooves 2 is simpler and facilitates adjustment of the position and shape of grooves 2, but this is not shown in the attached diagram.

[0027] The upper separation membrane layer 3, the lower separation membrane layer 4, and the support body 1 are all provided with retaining strips on their opposite surfaces. The support body 1 is provided with a slot for installing the retaining strips, which makes the connection between the upper separation membrane layer 3, the lower separation membrane layer 4, and the support body 1 more stable.

[0028] A rubber strip is provided in the card slot. This makes the connection between the card strip and the card slot tighter.

[0029] The support body 1 is provided with adjustment grooves, and a center of gravity adjustment component is installed in the adjustment grooves. The center of gravity adjustment component is used to adjust the center of gravity of the support body 1, and the adjustment grooves are evenly distributed on the support body 1. By setting the adjustment grooves and the center of gravity adjustment component, the center of gravity of the support body 1 is changed, compensating for the problem of uneven weight distribution of the ceramic membrane, improving the high-speed rotation performance of the ceramic membrane, thereby improving the filtration effect and avoiding the problem of damage to the ceramic membrane due to vibration.

[0030] One type of center-of-gravity adjustment component includes an adjusting rod 7 and a second nut 8, as detailed in the attached document. Figure 3As shown, the adjusting rod 7 is installed on the side wall of the adjusting groove, and the second nuts 8 are symmetrically arranged on the adjusting rod 7. The second nuts 8 and the adjusting rod 7 are threadedly connected, and the threads of the symmetrically arranged second nuts 8 are opposite in direction. Initially, the second nuts 8 are close to each other. When the center of gravity needs to be adjusted, the second nuts 8 are rotated to the corresponding position to change the center of gravity of the support body 1. By changing the position of the second nuts 8 in the center of gravity adjusting component, the center of gravity of the support body 1 is adjusted. This allows for the counterweight compensation of the upper and lower separation membrane layers whose center of gravity is deviated from the rotation center, thus enabling these upper and lower separation membrane layers to continue to be used. In addition, since the center of gravity adjusting component is located inside the ceramic membrane, it reduces changes to the external shape, resulting in a more balanced resistance distribution when the ceramic membrane rotates at high speed, reducing unnecessary vibration.

[0031] Another type of center-of-gravity adjustment component in this embodiment includes a counterweight block located within the adjustment groove. After adjusting the position of the counterweight block in the adjustment groove and adjusting the center of gravity of the support body 1, the counterweight block is then adhered to the bottom of the adjustment groove.

[0032] The upper separating membrane layer 3 and the lower separating membrane layer 4 have protrusions near the connecting shaft 5, and through holes are provided on the protrusions. These protrusions increase the connection area between the upper and lower separating membrane layers 3 and 4 and the support 1, enhancing the strength of the connection between the upper and lower separating membrane layers 3 and 4 and the support 1, and simultaneously improving the structural strength at the center of the upper and lower separating membrane layers 3 and 4. In this embodiment, the retaining strip is located in the middle of the upper and lower separating membrane layers 3 and 4, while the protrusions are located near the connecting shaft 5, resulting in a difference in their position and function.

[0033] This design uses the connecting shaft 5 and the first nut 6 to form the support body 1, the upper separation membrane layer 3, and the lower separation membrane layer 4 into a single unit. This facilitates installation and disassembly when the number of ceramic membranes needs to be changed in actual use. It allows for quick assembly of the support body 1, the upper separation membrane layer 3, and the lower separation membrane layer 4, improving the production efficiency of ceramic membranes. The upper separation membrane layer 3 and the lower separation membrane layer 4 can be made using the same mold, which can improve the production efficiency of disc-type ceramic membranes. The overall structure of the ceramic membrane is easy to disassemble, making it easy to replace each component.

[0034] The above descriptions are merely embodiments of the present invention, and common knowledge such as specific technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solutions of the present invention. In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing" 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 direct connection or an indirect connection through an intermediate medium; or 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 invention according to the specific circumstances. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A combined hollow disc ceramic membrane comprising a support body, an upper separation membrane layer and a lower separation membrane layer, characterized in that, The support body is separated from the upper and lower separation membrane layers during manufacturing and then assembled, further comprising a connecting shaft and a first nut, the connecting shaft is connected with the support body through the central through hole of the support body, the connecting shaft and the first nut are threadedly connected, the first nut is used for fixing the upper and lower separation membrane layers on the support body, the connecting shaft is hollow, the connecting shaft is provided with a through hole inside the ceramic membrane, the upper and lower surfaces of the support body are provided with grooves, the through hole is used for connecting the grooves on the support body and the connecting shaft, the two ends of the connecting shaft are respectively provided with internal threads and external threads, the internal threads and the external threads are engaged to connect two adjacent connecting shafts.

2. The combined hollow disc ceramic membrane according to claim 1, characterized in that: The connecting shaft and the support body are connected through spline connection.

3. The combined hollow disc ceramic membrane according to claim 1, characterized in that: The upper and lower separation membrane layers and the opposite surfaces of the support body are provided with clamping strips, the support body is provided with clamping grooves for installing the clamping strips.

4. The combined hollow disc ceramic membrane according to claim 3, characterized in that: The clamping grooves are provided with rubber strips.

5. The combined hollow disc ceramic membrane according to claim 1, characterized in that: The grooves are integrally formed with the support body.

6. The combined hollow disc ceramic membrane according to claim 1, characterized in that: The upper and lower surfaces of the support body are provided with mounting grooves, the mounting grooves are used for mounting the prismatic protrusions, the rubber rings are mounted at the edges of the prismatic protrusions, and the rubber rings and the prismatic protrusions form grooves.

7. The combined hollow disc ceramic membrane according to claim 1, characterized in that: Further comprising a gravity adjusting member, the support body is provided with adjusting grooves, the gravity adjusting member is installed in the adjusting grooves, the gravity adjusting member is used for adjusting the gravity center of the support body, and the adjusting grooves are uniformly distributed on the support body.

8. The combined hollow disc ceramic membrane according to claim 7, characterized in that: The gravity adjusting member comprises an adjusting rod and a second nut, the adjusting rod is installed on the side wall of the adjusting groove, the second nut is symmetrically arranged on the adjusting rod, and the second nut and the adjusting rod are threadedly connected, and the screw directions of the symmetrically arranged second nuts are opposite.

9. The combined hollow disc ceramic membrane according to claim 1, characterized in that: The upper and lower separation membrane layers are provided with protrusions near the connecting shaft, and the protrusions are provided with through holes.

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