Anti-clogging filter rod and acetylene apparatus filter
By using a composite structure of skeleton, filter layer and coating layer, combined with magnet and trapezoidal block design, the problems of easy clogging of filter element and easy leakage of seal are solved, realizing the efficient and stable operation of filter rod and extending service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 四川永盈新材料有限公司
- Filing Date
- 2025-07-17
- Publication Date
- 2026-06-16
AI Technical Summary
Existing filter elements are prone to clogging during the BDO acetylation production process, have low compressive strength, and are prone to leakage in the sealing structure, resulting in frequent filter shutdowns and failing to meet the requirements for high-efficiency, long-cycle operation.
It adopts a composite structure of frame + filter layer + coating layer, combined with magnet and trapezoidal block design to improve the stability and anti-clogging performance of filter element. High-strength plastic frame and melt-blown cotton material are used to increase the filtration area and prevent dirt accumulation.
It significantly extends the service life of filter rods, reduces replacement frequency, improves installation efficiency and stability, and ensures efficient and continuous operation of the filter.
Smart Images

Figure CN224358175U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of purification and filtration technology, and in particular to anti-clogging filter rods and acetylation device filters. Background Technology
[0002] In the deionization unit of the BDO acetylation production process, the filter is a key piece of equipment to ensure the stable operation of the system, and the performance of its core component, the filter element, directly affects the filtration effect and production efficiency. Currently, the mainstream filter elements are mainly polyethylene filter elements and wound filter elements, but they have some shortcomings in practical applications:
[0003] Polyethylene filter cartridges are prone to collapse and breakage under high pressure differential conditions due to poor pore size uniformity and low compressive strength. They can only be used in the pre-filtration stage and cannot meet the stringent requirements of the main filtration. Although wound filter cartridges use a honeycomb structure with a loose outer layer and a dense inner layer to intercept impurities in layers, the gaps between the outer fibers are relatively large. Large particles of impurities are easy to accumulate on the surface and form a "filter cake", which may lead to a rapid increase in filtration resistance and a decrease in flow rate.
[0004] Existing rod filter cartridges are prone to rapid clogging when intercepting fine catalyst particles, polymers, and other viscous impurities in the acetylation reaction liquid. Furthermore, their complex internal pleated filter media structure results in short filtration cycles. The sealing structure of the filter cartridges is susceptible to leakage due to pressure fluctuations during long-term operation, leading to frequent abnormal increases in system differential pressure, insufficient flow, or leakage of unfiltered liquid through the bypass, which contaminates downstream resin. This forces the unit to frequently shut down and replace the filter cartridges, severely impacting the long-term continuous and stable operation of the unit. Utility Model Content
[0005] The purpose of this utility model is to solve the problems mentioned in the background art, and to propose an anti-clogging filter rod and an acetylation device filter.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] Anti-clogging filter rod, including filter element, said filter element comprising:
[0008] skeleton;
[0009] The frame is a plastic frame;
[0010] The filter layer is fixedly connected to the frame.
[0011] The coating layer is fixedly connected to the filter layer.
[0012] Preferably, the filter layer is meltblown cotton.
[0013] Furthermore, the covering layer is a plastic mesh.
[0014] The acetylene device filter includes the aforementioned anti-clogging filter rod and filter body. An installation ring is fixedly connected inside the filter body, and an installation groove is provided on the installation ring. An installation block is fixedly connected to the side wall of the coating layer, and the installation block matches the installation groove.
[0015] Preferably, a magnet is fixedly connected in the mounting groove, the mounting block is a magnetic block, and the mounting block is attracted to the magnet.
[0016] Furthermore, a limiting ring is fixedly connected within the filter body. The limiting ring is located directly above the mounting ring, and a limiting groove is formed on the limiting ring. A limiting block is fixedly connected to the side wall of the covering layer, and the limiting block matches the limiting groove.
[0017] Furthermore, both the limiting block and the mounting block are trapezoidal blocks.
[0018] Furthermore, a first sealing ring and a second sealing ring are fixedly connected to the covering layer. The first sealing ring is in contact with the inner wall of the limiting ring, and the second sealing ring is in contact with the inner wall of the mounting ring.
[0019] Compared with the prior art, the present invention provides an anti-clogging filter rod and an acetylation device filter, which has the following beneficial effects:
[0020] 1. This utility model adopts a composite structure of "skeleton + filter layer + covering layer" for the filter element. The skeleton is a high-strength plastic frame, which not only provides solid support, but also increases the filtration area and improves filtration efficiency through the filter membrane attached to the surface. The middle filter layer is made of high-quality PP meltblown cotton material, which has both good air permeability and high flow rate, and can avoid the flow rate reduction caused by clogging while filtering efficiently. The outer covering plastic mesh can effectively prevent excessive dirt from adhering to the surface, reduce the risk of clogging, significantly extend the service life of the filter element, and reduce the replacement frequency.
[0021] 2. This utility model effectively improves the installation stability of the filter element and reduces the risk of shaking and displacement during filtration by cooperating with the installation ring, limiting ring and the installation block and limiting block on the filter rod, combined with the trapezoidal block design; the installation method of magnet and magnetic block attraction replaces the traditional bolt fixing, which improves the installation efficiency and the connection is firm. Attached Figure Description
[0022] Figure 1 This is an exploded view of the anti-clogging filter rod proposed in this utility model;
[0023] Figure 2 This is a schematic diagram of the anti-clogging filter rod proposed in this utility model;
[0024] Figure 3 This is a schematic diagram of the structure of the filter in the acetylation device proposed in this utility model;
[0025] Figure 4 This is a cross-sectional view of the filter in the acetylation device proposed in this utility model;
[0026] Figure 5 This is a schematic diagram of the mounting ring and limiting ring structure in the filter of the acetylation device proposed in this utility model.
[0027] In the diagram: 1. Filter element; 101. Covering layer; 1011. First sealing ring; 1012. Second sealing ring; 102. Filter layer; 103. Frame; 2. Filter body; 201. Limiting ring; 2011. Limiting groove; 202. Mounting ring; 2021. Mounting groove; 3. Limiting block; 4. Mounting block; 5. Magnet. Detailed Implementation
[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0029] Example 1:
[0030] Reference Figures 1-2 The anti-clogging filter rod includes filter element 1, which includes:
[0031] Skeleton 103;
[0032] The frame 103 is made of plastic;
[0033] In practice, a filter membrane is also fixedly wrapped around the outer layer of the skeleton 103.
[0034] The plastic frame 103 not only provides solid support, but the filter membrane attached to its surface also increases the filtration area, which greatly improves the filtration efficiency and further ensures the accuracy of the filtration.
[0035] The filter layer 102 is fixedly connected to the frame 103;
[0036] The coating layer 101 is fixedly connected to the filter layer 102.
[0037] Filter layer 102 is meltblown cotton.
[0038] Reference Figure 1 By setting the filter layer 102 as meltblown cotton, which has good air permeability and high flow rate, it can ensure smooth material flow while ensuring efficient filtration, and avoid the problem of flow rate reduction caused by filter layer blockage.
[0039] The covering layer 101 is a plastic mesh.
[0040] Reference Figure 1 The plastic coating layer 101 effectively prevents excessive dirt from adhering to the surface, reduces the risk of filter rod clogging, and further improves the overall durability and service life of the filter rod, ensuring the continuity and stability of the filtration process and providing a solid guarantee for the efficient operation of the acetylation device.
[0041] Example 2:
[0042] Reference Figures 3-5 The acetylene device filter includes an anti-clogging filter rod and a filter body 2. An installation ring 202 is fixedly connected inside the filter body 2. An installation groove 2021 is opened on the installation ring 202. An installation block 4 is fixedly connected to the side wall of the covering layer 101. The installation block 4 matches the installation groove 2021.
[0043] A magnet 5 is fixedly connected in the mounting slot 2021, and the mounting block 4 is a magnetic block that is attracted to the magnet 5.
[0044] Reference Figure 4 , Figure 5 The mounting block 4 attracts the magnet 5, eliminating the need for bolts to fix the filter element 1, thus improving the installation efficiency of the filter element 1. Furthermore, the attraction between the mounting block 4 and the magnet 5 effectively enhances the installation stability of the filter element 1.
[0045] It should be noted that magnet 5 is a commercially available strong magnet.
[0046] A limiting ring 201 is also fixedly connected inside the filter body 2. The limiting ring 201 is located directly above the mounting ring 202. A limiting groove 2011 is opened on the limiting ring 201. A limiting block 3 is fixedly connected to the side wall of the covering layer 101. The limiting block 3 matches the limiting groove 2011.
[0047] Reference Figure 4 , Figure 5 By setting the limiting ring 201 in the filter body 2, the installation stability of the filter element 1 on the top of the filter body 2 can be improved, and the possibility of the filter element 1 shaking during filtration can be reduced.
[0048] Both limit block 3 and mounting block 4 are trapezoidal blocks.
[0049] Reference Figure 5 In practice, by setting the limiting block 3 and the mounting block 4 as trapezoidal blocks, the installation stability of the filter element 1 can be improved, and the filter element 1 can be prevented from shifting when water flows and impacts it.
[0050] Reference Figure 2 , Figure 5In specific implementation, a first sealing ring 1011 and a second sealing ring 1012 are fixedly connected to the covering layer 101. The first sealing ring 1011 is attached to the inner wall of the limiting ring 201, and the second sealing ring 1012 is attached to the inner wall of the mounting ring 202.
[0051] By using the first sealing ring 1011 and the second sealing ring 1012 on the covering layer 101, the tightness of the connection between the filter element 1 and the mounting ring 202 and the limiting ring 201 can be effectively guaranteed, thereby ensuring the filtration effect of the filter element 1.
[0052] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. An anti-clogging filter rod, comprising a filter element (1), characterized in that, The filter element (1) includes: Skeleton (103); The frame (103) is a plastic frame; The filter layer (102) is fixedly connected to the frame (103); The coating layer (101) is fixedly connected to the filter layer (102).
2. The anti-clogging filter rod according to claim 1, characterized in that, The filter layer (102) is meltblown cotton.
3. The anti-clogging filter rod according to claim 2, characterized in that, The covering layer (101) is a plastic mesh.
4. An acetylation device filter, comprising the anti-clogging filter rod and filter body (2) as described in claim 3, characterized in that, An installation ring (202) is fixedly connected inside the filter body (2). An installation groove (2021) is provided on the installation ring (202). An installation block (4) is fixedly connected to the side wall of the covering layer (101). The installation block (4) matches the installation groove (2021).
5. The filter for the acetylation apparatus according to claim 4, characterized in that, A magnet (5) is fixedly connected in the mounting slot (2021), and the mounting block (4) is a magnetic block. The mounting block (4) is attracted to the magnet (5).
6. The filter for the acetylation apparatus according to claim 4, characterized in that, A limiting ring (201) is also fixedly connected inside the filter body (2). The limiting ring (201) is located directly above the mounting ring (202). A limiting groove (2011) is opened on the limiting ring (201). A limiting block (3) is fixedly connected to the side wall of the covering layer (101). The limiting block (3) matches the limiting groove (2011).
7. The filter for the acetylation apparatus according to claim 6, characterized in that, Both the limiting block (3) and the mounting block (4) are trapezoidal blocks.
8. The filter for the acetylation apparatus according to claim 6, characterized in that, A first sealing ring (1011) and a second sealing ring (1012) are fixedly connected to the covering layer (101). The first sealing ring (1011) is in contact with the inner wall of the limiting ring (201), and the second sealing ring (1012) is in contact with the inner wall of the mounting ring (202).