Tubular ceramic membrane filter

Abstract

The utility model provides a tubular ceramic membrane filter which comprises a tubular main body, a connecting component and a core rod, and the tubular main body comprises a plurality of filtering channel holes which are connected with two end parts of the tubular main body in a penetrating manner; the connecting assemblies are respectively arranged on the outer sides of the two end parts of the tubular main body, and the connecting assemblies can movably and radially move or rotate relative to the filtering channel holes; the core rods are arranged in the filtering channel holes in a penetrating mode, and the two ends of each core rod extend out of the corresponding filtering channel hole to be connected with the connecting assembly. The utility model has the advantages that the turbulence efficiency and the self-cleaning capability of the ceramic membrane are enhanced, the dynamic self-cleaning function is improved, and the like.

Description

Technical Field

[0001] This utility model relates to the field of ceramic membranes, specifically to a tubular ceramic membrane filter. Background Technology

[0002] Ceramic membranes are filtration membranes made from inorganic materials, typically prepared from powdered raw materials such as alumina, zirconium oxide, and titanium oxide through special molding and firing processes. Based on their configuration, ceramic membranes can be classified into tubular membranes, plate membranes, and hollow fiber membranes. Among these, multi-channel tubular membranes, due to their large membrane area per unit volume, high mechanical strength, and ease of installation, are suitable for large-scale applications and have become the main type used in industrial applications.

[0003] Existing ceramic membranes have the following characteristics:

[0004] 1) High temperature resistance and acid and alkali resistance: Ceramic membranes can withstand high temperature and strong acid and alkali environments, and are suitable for filtration, separation and purification under various extreme working conditions.

[0005] 2) Narrow pore size distribution: The ceramic membrane has a very uniform pore size distribution, which helps to improve separation efficiency and accuracy.

[0006] 3) High mechanical strength: Ceramic membranes have high mechanical strength, are not easily damaged, and are suitable for long-term use.

[0007] 4) Easy to regenerate: Ceramic membranes can have their performance restored and their service life extended through a simple cleaning and regeneration process.

[0008] The current problems with tubular ceramic membrane technology mainly lie in the excessively large inner diameter of the fluid channels achievable through the molding process:

[0009] 1) Because the ceramic material is used to make the slender tubular unit, it is quite difficult to make the through hole process both thin and straight. Therefore, the diameter of the fluid through hole of the ceramic membrane is 3mm to 10mm or larger. However, a larger pipe diameter means that it is easier to generate advection in the center of the through hole.

[0010] 2) Membrane fouling and polarization are quite severe. The skin layer of the filtration channel, i.e., the inner wall of the channel, can only achieve self-cleaning of surface contaminants under tangential fluid motion; therefore, its self-cleaning efficiency is highly dependent on the tangential dynamics of the fluid. Due to the large pipe diameter, a large amount of fluid flows directly through the central area of ​​the pipe, resulting in very low efficiency in generating turbulent cleaning of the inner wall.

[0011] The fluid inside the pipe is usually a laminar fluid, meaning that the pressure difference per unit length is related to the tangential velocity by a single equation. However, for tangential flow filtration applications, the pressure difference generated by this laminar fluid on the pipe sidewall is very small. Therefore, most of the work done by the fluid is lost due to tangential flow motion, and very little work is actually done to squeeze the ceramic membrane channel sidewall to perform "filtration," resulting in very low filtration efficiency.

[0012] Therefore, it is necessary to provide a new technical solution. Utility Model Content

[0013] To address the technical problems existing in the prior art, this utility model discloses a solution, the specific of which is as follows:

[0014] This utility model provides a tubular ceramic membrane filter, including

[0015] A tubular body, the tubular body comprising a plurality of filter channel holes that penetrate and connect both ends of the tubular body;

[0016] Connecting components, respectively disposed on the outer sides of both ends of the tubular body, are movable relative to the filter channel openings; and

[0017] The core rods are respectively inserted into the filter channel holes, and both ends of the core rods extend out of the filter channel holes and are pivotally connected to the connecting assembly.

[0018] The connecting component can drive the core rod to move within the filter channel hole.

[0019] Furthermore, the core rod is a cylindrical core rod, and the surface of the cylindrical core rod is provided with hollowed-out patterned protrusions. The patterned protrusions extend outward perpendicularly to the surface of the cylindrical core rod to approach or contact the inner wall of the filter channel hole.

[0020] Furthermore, the diameter of the cylindrical core rod is set between one-half and two-thirds of the diameter of the filter channel hole.

[0021] Furthermore, the core rod is a thin-plate core rod, which is formed by combining one or more thin plates. The thin-plate core rod includes symmetrical structures including straight, cross, and star-shaped shapes formed by combining thin plates.

[0022] Furthermore, the thin plate end of the thin plate-shaped core rod extends to be close to or in contact with the inner wall of the filter channel hole.

[0023] Furthermore, the core rod is a spiral core rod, and the outer end of the spiral core rod is close to or in contact with the inner wall of the filter channel hole.

[0024] Furthermore, the diameter of the filter channel hole is greater than 1 mm, and a filter membrane is provided on the inner wall of the filter channel hole, the density of the filter membrane being greater than the density of the tubular body.

[0025] Furthermore, it also includes a power unit, which is fixedly connected to the end of the core rod and drives the core rod to rotate.

[0026] This utility model has the following beneficial effects:

[0027] The tubular ceramic membrane filter provided by this invention incorporates a core rod capable of generating turbulence within the filter channel pores, thereby enhancing the turbulent filtration efficiency of the ceramic membrane. Furthermore, the core rod can be driven to rotate, improving the dynamic self-cleaning capability of the ceramic membrane. The core rod can be constructed in cylindrical, sheet-like, or spiral shapes, making it suitable for various applications.

[0028] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0030] Figure 1 This is a schematic diagram of the structure of the tubular ceramic membrane filter provided in this embodiment of the utility model.

[0031] Figure 2 This is a schematic diagram of the tubular body provided in an embodiment of the present utility model.

[0032] Figure 3 This is a schematic diagram of the core rod and connecting assembly in the filter channel hole provided in this embodiment of the utility model.

[0033] Figure 4 This is a schematic diagram of the cylindrical core rod in the filter channel hole provided in this embodiment of the utility model.

[0034] Figure 5 This is a schematic diagram of the structure of the straight core rod in the filter channel hole provided in this embodiment of the utility model.

[0035] Figure 6 This is a schematic diagram of the cross-shaped core rod in the filter channel hole provided in this embodiment of the utility model.

[0036] The reference numerals in the attached drawings are: 1-tubular body, 2-connecting assembly, 3-core rod, 11-filter channel hole. Detailed Implementation

[0037] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0038] In the description of this utility model, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element 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. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0039] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0040] This utility model discloses a tubular ceramic membrane filter, referenced... Figures 1 to 6 The system includes a tubular body 1, connecting components 2, and core rods 3. The tubular body 1 includes a plurality of filter channel holes 11 that penetrate and connect both ends of the tubular body 1. The connecting components 2 are respectively disposed on the outer sides of both ends of the tubular body 1, and the connecting components 2 are movable relative to the filter channel holes 11. The core rods 3 are respectively inserted into the filter channel holes 11, and both ends of the core rods 3 extend out of the filter channel holes 11 and are pivotally connected to the connecting components 2. The connecting components 2 can drive the core rods 3 to move within the filter channel holes 11. The core rods 3 create turbulence within the filter channel holes 11, thereby achieving a better cleaning effect. The ability of the core rods 3 to move within the filter channel holes 11 can selectively increase the cleaning capacity of a certain portion of the inner wall of the hole.

[0041] In one embodiment, reference Figure 4The core rod 3 is a cylindrical core rod, and the surface of the cylindrical core rod is provided with hollowed-out patterned protrusions. The patterned protrusions extend outward perpendicularly to the surface of the cylindrical core rod to approach or contact the inner wall of the filter channel hole 11.

[0042] Furthermore, the diameter of the cylindrical core rod is set between one-half and two-thirds of the diameter of the filter channel hole 11. The cylindrical core rod is a solid structure, reducing the laminar flow in the middle of the filter channel hole. Combined with the scraper extending to near or in contact with the inner wall of the filter channel hole, it can agitate the liquid within the filter channel hole to a greater extent during rotation, creating turbulence. Its advantages are high strength and strong turbulence and self-cleaning effect; however, its disadvantages are a relatively small capacity for filtering liquid or a slower flow rate.

[0043] In one embodiment, reference Figure 5 and Figure 6 The core rod 3 is a thin-plate core rod, which is formed by assembling one or more thin plates. The thin-plate core rod includes symmetrical structures such as straight lines, cross shapes, and star shapes formed by the assembly of thin plates. Specifically, the thin plate ends of the thin-plate core rod 33 extend to near or contact the inner wall of the filter channel hole 11. The thin-plate core rod formed by the assembly of thin plates can also effectively generate turbulence. Its advantages are that it can effectively agitate the liquid in the center of the filter channel hole, causing the liquid throughout the filter channel hole to form turbulence, thus producing a better self-cleaning effect. It also has a large filtration capacity and fast speed. However, its disadvantage is that the strength of the thin-plate shape is not as high as that of a cylindrical core rod.

[0044] In one embodiment, the core rod 3 is a helical core rod (not shown), with its outer end close to or in contact with the inner wall of the filter channel hole. The helical core rod has greater strength than the thin plate but less than the cylindrical core rod. The liquid filtration capacity of the helical core rod is similar to that of the thin plate, but the intensity of turbulence it generates is less than that of the thin plate and the cylindrical core rod, resulting in a slightly inferior self-cleaning effect.

[0045] Furthermore, the diameter of the filter channel hole 11 is greater than 1 mm, and a filter membrane is disposed on the inner wall of the filter channel hole 11. The density of the filter membrane is greater than the density of the tubular body 1. This application employs a finer filter channel hole and a core rod structure. This dual structure can better generate turbulence to clean the inner wall. Furthermore, the core rod structure in this application is also suitable for generating turbulence in filter channel holes with a diameter greater than 3 mm. When the diameter of the filter channel hole is small, the core rod 3 can be made of materials such as stainless steel or titanium alloy; when the diameter of the filter channel hole is larger, the core rod 3 can be made of materials such as polyvinyl fluoride.

[0046] The tubular ceramic membrane filter also includes a power unit (not shown), which is fixedly connected to the end of the core rod 3 and drives the core rod 3 to rotate.

[0047] The core rod can rotate coaxially with the filter channel hole, or it can be moved to rotate at an eccentric position. When rotating eccentrically, the pressure between the core rod and the inner wall of the filter channel hole increases, which can better clean the inner wall of the filter channel hole.

[0048] The working principle of this invention is as follows: a core rod is installed inside the filter channel of the tubular ceramic membrane filter, which can better agitate the fluid inside the filter channel, thereby generating turbulence to clean the inner wall. Furthermore, the core rod can be cylindrical, thin-plate, or spiral in shape to suit various practical applications.

[0049] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0050] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications and variations to the above embodiments within the scope of the present invention.

Claims

1. A tubular ceramic membrane filter, characterized in that, include A tubular body, the tubular body comprising a plurality of filter channel holes that penetrate and connect both ends of the tubular body; A connecting component is provided on the outer side of each of the two ends of the tubular body, and the connecting component is movable relative to the filter channel hole; and The core rods are respectively inserted into the filter channel holes, and both ends of the core rods extend out of the filter channel holes and are pivotally connected to the connecting assembly. The connecting component can drive the core rod to move within the filter channel hole.

2. The tubular ceramic membrane filter according to claim 1, characterized in that, The core rod is a cylindrical core rod, and the surface of the cylindrical core rod is provided with hollowed-out patterned protrusions. The patterned protrusions extend outward perpendicularly to the surface of the cylindrical core rod to approach or contact the inner wall of the filter channel hole.

3. The tubular ceramic membrane filter according to claim 2, characterized in that, The diameter of the cylindrical core rod is set between one-half and two-thirds of the diameter of the filter channel hole.

4. The tubular ceramic membrane filter according to claim 1, characterized in that, The core rod is a thin plate core rod, which is formed by combining one or more thin plates. The thin plate core rod includes symmetrical structures including straight, cross, and star shapes formed by combining thin plates.

5. The tubular ceramic membrane filter according to claim 4, characterized in that, The thin plate end of the thin plate core rod extends to be close to or in contact with the inner wall of the filter channel hole.

6. The tubular ceramic membrane filter according to claim 1, characterized in that, The core rod is a spiral core rod, and the outer end of the spiral core rod is close to or in contact with the inner wall of the filter channel hole.

7. The tubular ceramic membrane filter according to claim 1, characterized in that, The diameter of the filter channel hole is greater than 1 mm, and a filter membrane is provided on the inner wall of the filter channel hole. The density of the filter membrane is greater than the density of the tubular body.

8. The tubular ceramic membrane filter according to claim 1, characterized in that, It also includes a power unit, which is fixedly connected to the end of the core rod and drives the core rod to rotate.

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