Plum-blossom-shaped filter pipe anti-blocking structure and filter press

Abstract

The plum-blossom-shaped filter pipe anti-blocking structure comprises a plum-blossom-shaped filter pipe and filter cloth arranged on the outer side of the plum-blossom-shaped filter pipe in a sleeving mode, the outer diameter of the bottom of the plum-blossom-shaped filter pipe is smaller than that of the upper portion of the plum-blossom-shaped filter pipe, and a closing-in section without a filtering area is formed; a closing-up structure matched with the closing-up section is arranged at the bottom of the filter cloth. According to the structural design, no gap is reserved between the filter cloth and the filter pipe in the filtering process, so that slurry is effectively prevented from entering a middle layer, sludge is prevented from being accumulated between the filter pipe and the filter cloth, the problem that sludge remains between the filter cloth and the filter pipe is solved, the filtering efficiency is improved, and the service life of equipment is prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of sludge filtering equipment, in particular to a plum-blossom type filter tube anti-blocking structure and filter press. BACKGROUND

[0002] The existing precise micro-filtering equipment filters through high polymer sintered filter tubes as filtering components. In order to facilitate sludge unloading, the filter tubes are arranged in a plum-blossom shape, and a cylindrical filter cloth is sleeved on the outside to realize filtering and sludge unloading through the height difference between the filter cloth and the asymmetric filter tube. However, since the porosity of the filter cloth is larger than that of the filter tube, a large amount of slurry will pass through the filter cloth and adhere to the outer surface of the filter tube. With repeated production, the accumulated sludge between the filter cloth and the filter tube will block the passageway of the filter tube and the filter cloth, eventually leading to poor sludge unloading effect, and even causing the filtering structure to fail due to excessive material accumulation between the filter cloth and the filter tube.

[0003] At present, there is no effective solution to the problem of poor sludge unloading effect of the micro-filtering equipment in the related art. CONTENT OF THE INVENTION

[0004] The plum-blossom type filter tube anti-blocking structure and filter press provided by the embodiments of the present application realize effective filtering and anti-blocking by optimizing the structural design of the filter tube and the filter cloth.

[0005] In a first aspect, the embodiments of the present application provide a plum-blossom type filter tube anti-blocking structure, which comprises a plum-blossom type filter tube and a filter cloth sleeved on the outside of the plum-blossom type filter tube. The outer diameter of the bottom of the plum-blossom type filter tube is smaller than that of the upper part, forming a closed section without filtering area. The bottom of the filter cloth is provided with a closed section structure matched with the closed section.

[0006] In some embodiments, the closed section structure of the bottom of the filter cloth comprises an inwardly folded edge portion, which forms a closed capsule-shaped space, and the bottom of the capsule-shaped space is provided with an opening.

[0007] In some embodiments, the gap between the filter cloth and the plum-blossom type filter tube is L2 above and L1 below, and L2 < L1.

[0008] In some embodiments, the difference between L2 and L1 is in the range of 0.5-2 mm.

[0009] In some embodiments, a connecting component is arranged on the filter cloth and connected with the plum-blossom type filter tube through the connecting component. The connecting component comprises a first connecting surface and a second connecting surface, and the first connecting surface and the second connecting surface are connected by a re-stickable adhesive material.

[0010] In some embodiments, the porosity of the filter cloth is greater than that of the plum-blossom type filter tube.

[0011] In some embodiments, the plum-blossom filter tube is a plum-blossom hollow structure, the outer side is a microporous structure, and the inner side is a hollow structure.

[0012] In some embodiments, the plum-blossom filter tube is provided with a support structure inside the hollow structure, and the support structure is a plurality of support ribs arranged along the axial direction of the filter tube and uniformly distributed on the inner wall of the filter tube.

[0013] In some embodiments, the outer surface of the plum-blossom filter tube is provided with an anti-skid pattern, which is a groove or a protrusion arranged along the axial direction of the filter tube.

[0014] In a second aspect, the embodiments of the present application provide a filter press, comprising a tank body and a plurality of plum-blossom filter tube anti-blocking structures as described above arranged in the tank body, each of the plum-blossom filter tube anti-blocking structures comprising a filter tube joint connected with a feed distribution device for distributing slurry to be filtered into each plum-blossom filter tube.

[0015] Compared with the related art, the present application provides a plum-blossom filter tube anti-blocking structure, which comprises a plum-blossom filter tube and a filter cloth sleeved on the outer side of the plum-blossom filter tube, the outer diameter of the bottom of the plum-blossom filter tube is smaller than the outer diameter of the upper part of the plum-blossom filter tube, forming a closing section without filtering area; the bottom of the filter cloth is provided with a closing structure matched with the closing section. This structure design makes no gap between the filter cloth and the filter tube in the filtering process, effectively prevents the slurry from entering the middle layer, thereby avoiding the accumulation of sludge between the filter tube and the filter cloth, solving the problem of blockage, and improving the filtering efficiency and the service life of the equipment.

[0016] The details of one or more embodiments of the present application are presented in the following drawings and description to make other features, objects and advantages of the present application more apparent. BRIEF DESCRIPTION OF DRAWINGS

[0017] The drawings described herein are intended to provide further understanding of the present application, and form a part of the present application. The illustrative embodiments of the present application and their description serve to explain the present application, and do not constitute an improper limitation of the present application. In the drawings:

[0018] Figure 1 is a schematic diagram of a filter press provided by the embodiments of the present application;

[0019] Figure 2 is one of the structural schematic diagrams of a plum-blossom filter tube provided by the embodiments of the present application;

[0020] Figure 3 is a working state diagram of a plum-blossom filter tube in different states provided by the embodiments of the present application;

[0021] Figure 4Fig. 2 is a structural schematic diagram of a plum-blossom type filter tube according to an embodiment of the present application;

[0022] Figure 5 Fig. 4 is a schematic diagram of a connecting component of a filter cloth according to an embodiment of the present application. DETAILED DESCRIPTION

[0023] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application is described and explained below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and should not be used to limit the present application. Based on the embodiments provided in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0024] Obviously, the accompanying drawings in the following description are only some examples or embodiments of the present application, and for those of ordinary skill in the art, the present application can be applied to other similar scenarios without creative effort based on these drawings. In addition, it can be understood that although the efforts made in this development process can be complex and lengthy, for those of ordinary skill in the art related to the content disclosed in the present application, some designs, manufacturing or production changes based on the technical content disclosed in the present application are only routine technical means and should not be understood as insufficient disclosure of the present application.

[0025] In the present application, "embodiments" means that the specific features, structures or characteristics described in conjunction with the embodiments can be included in at least one embodiment of the present application. The phrase appears at various places in the specification does not necessarily refer to the same embodiment, nor is it mutually exclusive or alternative to other embodiments. It is explicitly and implicitly understood by those of ordinary skill in the art that the embodiments described in the present application can be combined with other embodiments without conflict.

[0026] Unless otherwise defined, technical terms and scientific terms used in the present application shall have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. The terms "a", "an", "one", "this", and similar referents in the context of describing the application are to be construed to be open-ended, referring to one or more than one, unless otherwise noted. The terms "including", "comprising", "having" and variations thereof in this application are meant to encompass the inclusion of one or more elements, steps, or modules (units) without limitation to the listed elements, steps, or modules, unless otherwise noted. The terms "connected", "coupled", and similar referents in the context of this application are to be construed as beading in a cause to physical or mechanical connections, unless otherwise noted. The term "multiple" refers to two or more. The terms "first", "second", "third", and the like in the context of this application are used to distinguish one element from another, not to designate a particular order or sequence.

[0027] The embodiment provides a plum blossom type filter pipe 100 anti-blocking structure, as shown in Figure 2 、 3 and 4, comprising a plum blossom type filter pipe 100 and a filter cloth 120 sleeved outside the plum blossom type filter pipe 100, the outer diameter of the bottom of the plum blossom type filter pipe 100 is smaller than the outer diameter of the upper part, forming a closing section without filtering area; the filter cloth 120 is provided with a closing structure 101 matched with the closing section.

[0028] In the filter press 1010, the filter core 100 is sintered by using an ultra-high molecular weight polyethylene powder, and during the filtration, the thick slurry is first pumped into the tank body 400400 from the wet mud bin, then the vacuum pump 102102 is used to pump negative pressure, so that the filter cake is formed on the outer surface of the filter pipe 100, and the water enters the filter water bin 103103 through the micropore channel of the filter pipe 100, so that the thick slurry pumped into the tank body 400400 is subjected to solid-liquid separation. With the filtration, the liquid level in the tank body 400400 will continuously decrease, and finally the liquid level is lower than the liquid level of the filter pipe 100.

[0029] The application has a plurality of petal-shaped structures protruding from the plum blossom type filter pipe, which helps to increase the surface area of the filter pipe, improve the filtration efficiency, and facilitate the adhesion of the filter cloth 120 and the shedding of the sludge.

[0030] The outer diameter of the bottom of the plum blossom-shaped filter tube 100 is smaller than that of its upper part, forming a constricted section with no filtration area. This constricted section allows the bottom of the filter cloth 120 to fit tightly with it, creating a seal and forming a section with no filtration area at the lower end of the plum blossom-shaped filter tube 100. During filtration, there is no gap between the filter cloth 120 and the filter tube, effectively preventing sludge from entering the middle layer between the filter cloth 120 and the filter tube. During backflushing, sludge can be effectively discharged between the filter cloth 120 and the filter tube; at the same time, it is convenient for the bottom of the filter cloth 120 to collect the detached sludge. In addition, by setting the filter cloth 120 to be larger at the top and smaller at the bottom, that is, the gap L2 at the top is smaller than the gap at the bottom, it is ensured that the sludge adhering to the surface of the filter element falls downward more easily and eventually enters the bag, where it is redissolved and participates in filtration again.

[0031] The bottom of the filter cloth 120 is provided with a closing structure 101 that matches the closing section at the bottom of the filter tube, such as... Figure 4 and Figure 5 As shown, specifically, it is an inwardly folded edge portion that forms a closed sac-like space, with a mud discharge port 122 provided at the bottom of the sac-like space.

[0032] The bottom of the filter cloth 120 is designed as a sealing structure 101. This prevents excessive slurry from entering the space between the filter cloth 120 and the filter element before filtration. During filtration, the filter cloth 120 adheres to the filter element surface due to the negative pressure applied to the hollow section of the filter element, eliminating the gap between the bottom of the filter element and the diameter of the filter cloth 120, thus achieving a seal and preventing slurry from entering the space between the filter element and the filter cloth 120. Because the pores of the filter cloth 120 are larger than those of the filter element, some slurry may still enter the space between the filter cloth 120 and the filter element and accumulate on the surface of the filter element. Due to the obstruction of the filter cloth 120, this slurry is blown off during backflushing and collects in the sealing bag at the bottom of the filter cloth 120. The bag has a small opening at the bottom, allowing the filter residue to slowly dissolve and re-enter the filtered slurry. This design ensures that there is no gap between the filter cloth 120 and the filter tube during the filtration process, effectively preventing sludge from entering the intermediate layer. It also facilitates the collection of sludge that falls off the filter cloth 120, allowing the sludge to be discharged through the opening or redissolved into the filtration slurry. This effectively prevents filter residue from accumulating between the filter element and the filter cloth 120 and becoming impossible to discharge.

[0033] Through the above structural design, there is no gap between the filter cloth 120 and the filter tube during the filtration process, which effectively prevents sludge from entering the intermediate layer. This avoids the accumulation of sludge between the filter tube and the filter cloth 120, solves the problem of residual sludge between the filter cloth 120 and the filter tube, and improves the filtration efficiency and service life of the equipment.

[0034] In practical applications, the size and shape of the bottom closing section of the plum blossom filter tube 100 can be adjusted according to the properties and concentration of the filtered material to meet different filtering requirements. For example, for high-concentration sludge, the size of the closing section can be appropriately increased to increase the filtering area and efficiency; for thinner materials, the size of the closing section can be reduced to reduce material usage and costs.

[0035] In some embodiments, an elastic sealing ring is added around the bottom closing section of the plum blossom filter tube 100. When the closing structure 101 at the bottom of the filter cloth 120 is matched with the closing section, the elastic sealing ring can further enhance the sealing effect and prevent mud from seeping into the intermediate layer between the filter tube and the filter cloth 120. It is suitable for filtering scenarios with high sealing requirements, such as handling toxic and harmful sludge.

[0036] In some embodiments, the bottom closing section of the plum blossom filter tube 100 is designed as a detachable structure, such as being connected to the filter tube body through threads or buckles, etc. When it is necessary to replace or clean the filter cloth 120, the closing section can be quickly detached for easy operation. It is suitable for situations where the filter cloth 120 needs to be frequently replaced or the equipment needs to be cleaned, such as filtering equipment in the food processing industry.

[0037] In some embodiments, the filter cloth 120 is made of flexible material and can adhere to the surface of the plum blossom filter tube 100, forming a plum blossom structure and tightly cooperating with the petal-shaped structure of the filter tube to improve the filtering effect.

[0038] In some embodiments, the closing structure 101 at the bottom of the filter cloth 120 includes an inwardly folded edge portion, which forms a closed capsule space, and the bottom of the capsule space is provided with an opening. In practical applications, the size of the capsule space and the size of the opening can be adjusted according to the viscosity and particle size of the filtered material to optimize the collection and discharge of sludge. For example, for high-viscosity materials, the capacity of the capsule space can be increased to accommodate more sludge; for larger particles, the size of the opening can be appropriately increased to facilitate the discharge of sludge.

[0039] This closing structure 101 design allows the sludge that falls off during the filtering process to be collected in the capsule space and discharged through the opening or re-dissolved into the filtered slurry, further preventing the accumulation and clogging of sludge and improving the filtering effect and cleanliness of the equipment.

[0040] In some embodiments, the capsule space at the bottom of the filter cloth 120 is designed as a detachable collection box, and a sealing cover is provided at the bottom of the collection box. When the sludge accumulates to a certain extent, the sealing cover can be opened and the collection box can be removed for sludge cleaning or recycling. It is suitable for industrial production that requires regular sludge cleaning or recycling, such as metal powder recycling, etc.

[0041] In some embodiments, the gap between the filter cloth 120 and the filter tube is L2 on the top and L1 on the bottom, and L2 < L1, with the difference between L2 and L1 ranging from 0.5 to 2 mm.

[0042] This gap design makes it easier for the sludge attached to the surface of the filter tube to fall downward and eventually gather in the bag at the bottom of the filter cloth 120, facilitating the shedding and collection of sludge and preventing the accumulation of sludge between the filter tube and the filter cloth 120, further improving the filtering efficiency and the anti-clogging performance of the equipment.

[0043] In some embodiments, a layer of elastic buffer gasket is provided between the filter cloth 120 and the filter tube, and the thickness of the gasket can be adjusted according to the difference between L2 and L1. When the sludge is attached to the surface of the filter tube, the elastic buffer gasket can provide a certain buffering effect, making it easier for the sludge to fall off. It is suitable for processing materials with high viscosity, such as paper pulp filtration in the paper industry.

[0044] In some embodiments, the gap between the filter cloth 120 and the filter tube is designed as an adjustable structure, and the size of L2 and L1 is adjusted by a knob or a slider. The operator can adjust the size of the gap in real time according to the actual filtering situation and the characteristics of the material to achieve the best filtering effect. It is suitable for variable filtering environments and different batches of material filtration.

[0045] In some embodiments, the difference between L2 and L1 ranges from 0.5 to 2 mm.

[0046] The filter tube and the filter cloth 120 gap structure: the gap between the filter cloth 120 and the filter tube is L2 on the top and L1 on the bottom, and L2 < L1. Specifically, the difference between L2 and L1 ranges from 0.5 to 2 mm. This design makes it easier for the sludge attached to the surface of the filter tube to fall downward and eventually gather in the bag at the bottom of the filter cloth 120, facilitating the shedding and collection of sludge and preventing the accumulation of sludge between the filter tube and the filter cloth 120, leading to clogging.

[0047] In some embodiments, as Figure 5As shown, the filter cloth 120 is provided with a connecting component 121, which is connected with the plum blossom filter tube 100 through the connecting component 121; the connecting component 121 includes a first connecting surface and a second connecting surface, and the first connecting surface and the second connecting surface are connected by a re-adhesive adhesive material. The adhesive material connection can be a combination of a hook surface and a velvet surface, and the hook surface and the velvet surface are adhered to each other to achieve quick installation and replacement of the filter cloth 120, thereby improving the convenience of maintenance. In order to facilitate the replacement and installation of the filter cloth 120, a circle of magic tape is arranged on the installation end surface of the filter cloth 120. When installing, only the magic tape needs to be opened, and after installation is completed, the magic tape is tightened and pasted to the appropriate position.

[0048] The design of the connecting component 121 makes the installation and replacement of the filter cloth 120 simple and fast. Only the adhesive material of the first connecting surface and the second connecting surface needs to be separated, and the filter cloth 120 can be easily removed. After replacing the new filter cloth 120, the adhesive material is adhered again to complete the installation, thereby greatly improving the convenience and efficiency of maintenance, reducing production cost and operation difficulty.

[0049] In some embodiments, a waterproof and breathable film is added between the first connecting surface and the second connecting surface of the connecting component 121. The film can prevent slurry from penetrating into the connecting component 121, while allowing air to pass through, thereby keeping the connecting component 121 dry and clean. It is suitable for filtering environments that are humid or have liquid splashing, such as liquid filtration in the chemical industry.

[0050] In some embodiments, the connecting component 121 is a magnetic connection structure, and the first connecting surface and the second connecting surface are respectively provided with magnetic materials and are connected by magnetic attraction. This connection method does not require adhesive material, and the connection and disassembly are more convenient and fast.

[0051] In some embodiments, the porosity of the filter cloth 120 is greater than the porosity of the plum blossom filter tube 100.

[0052] The porosity design allows part of the slurry to pass through the filter cloth 120 and adhere to the outer surface of the filter tube, while ensuring that the filter tube can effectively filter sludge particles, thereby improving the filtration efficiency and utilization rate of the filter tube and reducing the risk of filter cloth 120 blockage.

[0053] In some embodiments, as shown in Figure 3 Figure 4 As shown, it is a schematic diagram of the internal structure of the filter tube. The plum blossom filter tube 100 is a plum blossom hollow structure, and the outer side is a microporous structure, and the inner side is a hollow structure.

[0054] The outer microporous structure allows water molecules to pass through, while sludge macromolecules cannot pass through, ensuring the filtering effect; the hollow structure provides more internal space for the filter tube, which helps to improve the filtering efficiency and accommodate more sludge. To facilitate sludge unloading, a circular filter cloth 120 is provided outside the filter core. During filtration, the outer slurry will press the filter cloth 120 against the surface of the filter core due to the negative pressure in the middle of the filter core. The filter cloth 120 is flexible, so it can conform to the filter core and become a quincunx shape. After filtration is completed, the filter core is back-flushed under high pressure to restore it to its pre-compressed state, thereby enabling displacement and causing the dry sludge outside the filter cloth 120 to detach, achieving sludge unloading.

[0055] In some embodiments, the hollow structure of the quincunx filter tube 100 has a support structure inside, which is a plurality of support ribs arranged axially along the filter tube. The support ribs are uniformly distributed on the inner wall of the filter tube to enhance the structural strength of the filter tube, prevent deformation of the filter tube due to pressure changes during filtration, and ensure the stability and durability of the filter tube.

[0056] In some embodiments, the outer surface of the quincunx filter tube 100 is provided with anti-slip lines, which are grooves or protrusions arranged axially along the filter tube.

[0057] The anti-slip line design increases the friction between the filter tube and the filter cloth 120, preventing the filter cloth 120 from slipping during filtration, ensuring the close fit of the filter cloth 120 with the filter tube, and improving the filtering effect and the stability of the equipment.

[0058] The application also provides a filter press 10, which is described in detail with reference to Figure 1 : including a tank body 400 and a plurality of quincunx filter tubes 100 with anti-clogging structures as described above arranged inside the tank body 400. Each quincunx filter tube 100 includes a filter tube joint 102, which is connected to a feed distribution device for distributing the slurry to be filtered into each quincunx filter tube 100.

[0059] The filter press 10 includes a tank body 400 for containing the slurry to be filtered and the filtered filtrate and sludge. The top of the tank body 400 is provided with a feed inlet for feeding the slurry to be filtered into the tank body 400; the bottom of the tank body 400 is provided with a discharge outlet for discharging the filtered filtrate and sludge.

[0060] The tank body 400 is provided with a plurality of quincunx filter tubes 100, each of which includes a filter tube joint 102. The filter tube joint 102 is connected to a feed distribution device for distributing the slurry to be filtered into each quincunx filter tube 100, ensuring uniform distribution of the slurry on the surface of the filter tube and improving the filtering efficiency.

[0061] The feed distribution device is responsible for uniformly distributing the slurry to be filtered into each of the plurality of filter tubes 100, ensuring that each filter tube can effectively perform filtration.

[0062] In the filter press 10, the filter core is sintered by ultra-high molecular weight polyethylene powder, the plurality of filter tubes 100 are arranged in the middle of the tank body 400, the thick slurry is pumped into the tank body 400 by the slurry pump, the filter core has a hollow structure in the middle and a dense microporous structure on the surface, and the inside is subjected to negative pressure, so that the filtration is performed by the pressure difference between the inside and the outside. In the filtration process, the slurry to be filtered enters the tank body 400 through the feed inlet, and then is uniformly distributed into each of the plurality of filter tubes 100 by the feed distribution device. The slurry is filtered on the surface of the filter tube, and the water molecules enter the inside of the filter tube through the microporous structure of the filter tube, while the sludge macromolecules are blocked by the filter tube and adhere to the outer surface of the filter tube. The filter cloth 120 is sleeved on the outside of the plurality of filter tubes 100 and tightly cooperates with the filter tubes to form a plurality of filter tubes in a plum blossom shape. The porosity of the filter cloth 120 is greater than that of the filter tube, allowing part of the slurry to pass through the filter cloth 120 and adhere to the outer surface of the filter tube, while ensuring that the filter tube can effectively filter the sludge particles. In the filtration process, the cooperation gap between the filter cloth 120 and the filter tube is small at the top and large at the bottom, so that the sludge adhering to the surface of the filter tube is more easily dropped downward and finally gathered in the collection bag at the bottom of the filter cloth 120, facilitating the shedding and collection of the sludge. The filtered filtrate enters the inside of the tank body 400 through the hollow structure of the filter tube, and is finally discharged through the discharge port; while the sludge is accumulated on the outer surface of the filter tube and collected through the collection structure 101 at the bottom of the filter cloth 120, and is regularly cleaned or discharged.

[0063] The upper end of the filter cloth 120 is provided with a connecting component 121, by which the filter cloth 120 can be quickly installed or replaced. When the filter cloth 120 needs to be replaced, the first connecting surface and the second connecting surface of the connecting component 121 are separated, so that the filter cloth 120 can be easily removed; after the new filter cloth 120 is replaced, the first connecting surface and the second connecting surface are bonded again to complete the installation, which greatly simplifies the replacement process of the filter cloth 120 and improves the convenience and efficiency of maintenance.

[0064] The support structure and anti-skid pattern design of the filter tube enhance the structural strength and stability of the filter tube, improve the durability and service life of the filter tube, reduce the frequency of maintenance and replacement, and reduce the maintenance cost.

[0065] The technical features of the above-described embodiments can be combined in any manner. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described, but as long as the combinations of the technical features do not exist, they should be considered as the scope of the present disclosure.

[0066] The above-described embodiments are merely illustrative of several embodiments of the present application, which are described in more detail and in a specific manner, but should not be construed as limiting the scope of the patent. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A plum blossom-shaped filter tube anti-clogging structure, characterized in that, include: The filter tube is shaped like a plum blossom and a filter cloth is sleeved on its outside. The outer diameter of the bottom of the plum blossom-shaped filter tube is smaller than the outer diameter of its upper part, forming a closed section with no filtration area. The bottom of the filter cloth is provided with a closing structure that matches the closed section.

2. The plum blossom-shaped filter tube anti-clogging structure according to claim 1, characterized in that, The bottom of the filter cloth has a closed structure including an inwardly folded edge portion that forms a closed sac-like space with an opening at the bottom.

3. The plum blossom-shaped filter tube anti-clogging structure according to claim 1, characterized in that, The gap between the filter cloth and the plum blossom-shaped filter tube is L2 at the top and L1 at the bottom, and L2 < L1.

4. The plum blossom-shaped filter tube anti-clogging structure according to claim 3, characterized in that, The difference between L2 and L1 is in the range of 0.5-2 mm.

5. The plum blossom-shaped filter tube anti-clogging structure according to claim 1, characterized in that, The filter cloth is provided with a connecting component, which is connected to the plum blossom-shaped filter tube; the connecting component includes a first connecting surface and a second connecting surface, which are connected by a reusable adhesive material.

6. The plum blossom-shaped filter tube anti-clogging structure according to claim 1, characterized in that, The porosity of the filter cloth is greater than that of the plum blossom-shaped filter tube.

7. The plum blossom-shaped filter tube anti-clogging structure according to claim 1, characterized in that, The plum blossom-shaped filter tube has a hollow structure with a microporous structure on the outside and a hollow structure on the inside.

8. The plum blossom-shaped filter tube anti-clogging structure according to claim 7, characterized in that, The hollow structure of the plum blossom-shaped filter tube is provided with a support structure, which consists of multiple support ribs arranged along the axial direction of the filter tube and evenly distributed on the inner wall of the filter tube.

9. The plum blossom-shaped filter tube anti-clogging structure according to claim 1, characterized in that, The outer surface of the plum blossom-shaped filter tube is provided with anti-slip texture, which is a groove or protrusion arranged along the axial direction of the filter tube.

10. A filter press, characterized in that: The device includes a tank body and a plurality of anti-clogging structures for the plum blossom-shaped filter tubes as described in any one of claims 1-9 disposed within the tank body. Each of the plum blossom-shaped filter tubes includes a filter tube connector, which is connected to a feed distribution device for distributing the slurry to be filtered into each of the plum blossom-shaped filter tubes.

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