A high strength melt filter element that is less prone to deformation

Abstract

This utility model discloses a high-strength melt filter element that is not easily deformed. It includes a filter element body (1), the inner wall of which is a smooth plane; the outer wall of which is a corrugated structure, and a ceramic-metal composite coating (2) is applied to the outer wall of which is coated; a feed pipe (3) and a discharge pipe (4) are respectively installed at both ends of the filter element body (1); a filter element sleeve (5) is welded to the inner wall of the filter element body (1), and multiple uniformly distributed metal mesh layers (6) are welded to the filter element sleeve (5); the mesh count of all metal mesh layers (6) gradually increases along the direction from the feed pipe (3) to the discharge pipe (4), and the mesh openings between each two adjacent metal mesh layers (6) are staggered. This utility model not only improves the resistance to deformation, but also has the advantages of good filtration effect, long service life, high working stability, convenient maintenance, and easy disassembly and assembly.

Description

Technical Field

[0001] This utility model relates to a melt filter element for high-speed spinning, and in particular a high-strength melt filter element that is not easily deformed. Background Technology

[0002] Melt filter cartridges are crucial equipment in high-speed spinning and fine denier filament spinning. They are used for continuous filtration of polymer melts, removing impurities and unmelted particles to ensure the spinning performance and quality of the final melt. Currently, commonly used melt filter cartridges incorporate multiple layers of metal mesh to ensure filtration accuracy. However, in actual use, the high-pressure melt entering the melt filter causes significant impact, leading to compression and even deformation of the nodes in the metal mesh. Combined with the effects of high temperatures on the metal mesh, this results in irreversible deformation of the internal metal mesh layer. Therefore, existing melt filter cartridges suffer from poor resistance to deformation during use. Utility Model Content

[0003] The purpose of this invention is to provide a high-strength melt filter element that is not easily deformed.

[0004] This invention has the advantage of high resistance to deformation.

[0005] The technical solution of this utility model is as follows: A high-strength melt filter element that is not easily deformed, comprising a filter element body, the inner wall of which is a smooth plane; the outer wall of which is a corrugated structure, and a ceramic-metal composite coating is applied to the outer wall of which; an inlet pipe and an outlet pipe are respectively installed at both ends of the filter element body; a filter element sleeve is welded to the inner wall of the filter element body, and multiple uniformly distributed metal mesh layers are welded to the filter element sleeve; the mesh count of all metal mesh layers gradually increases along the direction from the inlet pipe to the outlet pipe, and the mesh openings between each two adjacent metal mesh layers are staggered; by setting the filter element body with a smooth plane inner wall and a corrugated outer wall, the entire filter element body forms a corrugated pipe-like structure, utilizing the elastic deformation effect of the corrugated structure. This not only reduces the impact energy of the melt on the filter element body after passing through the feed pipe, avoiding stress concentration, but also increases the radial expansion of the entire filter element body after contact with the high-temperature melt. Combined with the ceramic-metal composite coating on the outer surface of the filter element body, a high-temperature resistant, deformation-resistant protective layer is formed, thus improving the overall deformation resistance of the filter element. By setting multiple metal mesh layers, with the mesh size gradually increasing from the feed pipe to the discharge pipe, all the metal mesh layers form a gradient filtration structure from coarse to fine filtration. This ensures filtration efficiency while also providing support between adjacent metal mesh layers, preventing overload deformation of a single mesh layer and further improving deformation resistance.

[0006] In the aforementioned high-strength melt filter element that is not easily deformed, an upper cover and a lower cover are respectively provided at both ends of the filter element body. A first annular groove is provided on the inner sidewall of both the upper and lower covers. A second annular groove is provided on the outer side of both the upper and lower covers at positions corresponding to the upper and lower sides of the first annular groove. A ring clamp is installed in each second annular groove. Both ends of the outer sidewall of the filter element body are provided with annular protrusions that cooperate with the first annular grooves. The upper and lower covers allow the loading and unloading ends of the filter element body to be opened, facilitating cleaning of the filter element body and replacement and maintenance of the internal metal mesh layer. The first annular grooves and annular protrusions, in conjunction with the second annular grooves and ring clamps, increase the tightness of the connection between the upper cover and the filter element body, as well as between the lower cover and the filter element body, thereby ensuring the sealing effect of the entire filter element.

[0007] In the aforementioned high-strength melt filter element that is not easily deformed, the edges of the upper and lower sides of the annular convex strip are both arc-shaped; the feed pipe is installed on the upper cover; the discharge pipe is installed on the lower cover; by setting the edges of the upper and lower sides of the convex strip to be arc-shaped, it is convenient for the annular convex strip to enter into or detach from the first annular groove, and it is convenient for the upper cover and the lower cover to be disassembled and assembled.

[0008] In the aforementioned high-strength melt filter element that is not easily deformed, the ring is composed of two semi-circular metal retaining rings, each metal retaining ring having a mating piece at both ends, and each mating piece having a threaded hole; the mating pieces on the corresponding sides of the two metal retaining rings are connected together by bolts and nuts.

[0009] In the aforementioned high-strength melt filter element that is not easily deformed, the top surface of the filter element body is provided with multiple annularly distributed grooves, and each groove is equipped with an electric heating element; the bottom surface of the groove and the bottom surface of the filter element sleeve are set on the same horizontal plane; the electric heating element can heat and keep the entire filter element body warm, avoiding the phenomenon of internal melt condensation during the filtration process, thereby ensuring the stable operation of the filtration work.

[0010] In the aforementioned high-strength melt filter element that is not easily deformed, the inner wall of the filter element body near the discharge pipe is funnel-shaped; a throttling sealing valve is installed on the discharge pipe; setting the bottom end of the filter element body into a funnel shape facilitates the discharge of the filtered melt.

[0011] Compared with existing technologies, this utility model improves upon existing melt filter elements by designing the filter element body with a smooth inner wall and a corrugated outer wall, forming a corrugated pipe-like structure. Utilizing the elastic deformation effect of the corrugated structure, it not only reduces the impact energy of the melt on the filter element body after passing through the feed pipe, avoiding stress concentration, but also increases the radial expansion of the entire filter element body after contact with the high-temperature melt, thereby improving the overall deformation resistance of the filter element. Furthermore, by providing a filter element sleeve on the filter element body to fix the metal mesh layer, it not only ensures the stability of the overall structure but also prevents the metal mesh layer from... During the filtration process, phenomena such as shifting or sliding occur, ensuring filtration effectiveness. Simultaneously, by setting multiple metal mesh layers with the mesh size gradually increasing from the feed pipe to the discharge pipe, a gradient filtration structure from coarse to fine filtration is formed. This ensures filtration effectiveness while also providing support between adjacent metal mesh layers, preventing overload deformation of a single layer and further improving deformation resistance. Furthermore, by coating the outer surface of the filter element body with a ceramic-metal composite coating, a high-temperature resistant, deformation-resistant protective layer is formed, further improving the overall service life and deformation resistance of the filter element.

[0012] Furthermore, this invention also features an upper cover and a lower cover installed at both ends of the filter element body. These covers allow the loading and unloading ends of the filter element body to be opened, facilitating cleaning of the interior and replacement / maintenance of the internal metal mesh layer. The first annular groove and annular protrusion, working in conjunction with a second annular groove and a ring clamp, increase the tightness of the connection between the upper cover and the filter element body, as well as between the lower cover and the filter element body. This ensures a tight seal throughout the filter element and guarantees stable filtration operation. The design incorporates several advantages: Firstly, by designing the edges of the upper and lower sides of the protruding strip as arc surfaces, it facilitates the entry and exit of the annular protrusion into or from the first annular groove, thus simplifying the assembly and disassembly of the upper and lower covers. Secondly, multiple grooves are provided on the side wall of the filter element body, each containing a heating element. These heating elements heat and insulate the entire filter element body, preventing internal melt condensation during filtration and ensuring stable filtration. Thirdly, the bottom end of the filter element body is funnel-shaped, facilitating the discharge of the filtered melt. Therefore, this invention not only improves resistance to deformation but also offers advantages such as good filtration effect, long service life, high operational stability, convenient maintenance, and easy assembly and disassembly. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a side view of the present invention;

[0015] Figure 3 This is a top view of the present invention;

[0016] Figure 4 yes Figure 1 A magnified view of a portion of point A in the middle.

[0017] The labels in the attached diagram are as follows: 1-Filter element body, 2-Ceramic-metal composite coating, 3-Infeed pipe, 4-Outfeed pipe, 5-Filter element sleeve, 6-Metal mesh layer, 7-Upper cover, 8-Lower cover, 9-First annular groove, 10-Second annular groove, 11-Ring hoop, 12-Annular convex strip, 13-Groove, 14-Heating element, 15-Throttle sealing valve. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0019] Example. A high-strength melt filter element that is not easily deformed, configured as follows: Figures 1 to 4 As shown, the filter element body 1 has a smooth inner wall and a corrugated outer wall. A ceramic-metal composite coating 2 is applied to the outer wall of the filter element body 1. An inlet pipe 3 and an outlet pipe 4 are installed at the two ends of the filter element body 1, respectively. A filter element sleeve 5 is welded to the inner wall of the filter element body 1, and multiple uniformly distributed metal mesh layers 6 are welded to the filter element sleeve 5. The mesh count of all metal mesh layers 6 gradually increases along the direction from the inlet pipe 3 to the outlet pipe 4, and the mesh openings between each two adjacent metal mesh layers 6 are staggered.

[0020] The filter element body 1 has an upper cover 7 and a lower cover 8 at its two ends, respectively. The inner walls of both the upper cover 7 and the lower cover 8 have first annular grooves 9. The outer surfaces of both the upper cover 7 and the lower cover 8 have second annular grooves 10 at positions corresponding to the upper and lower sides of the first annular grooves 9, and each second annular groove 10 has a ring clamp 11 installed within it. Both ends of the outer walls of the filter element body 1 have annular protrusions 12 that mate with the first annular grooves 9. The edges of the upper and lower sides of the annular protrusions 12 are rounded. The feed pipe 3 is installed on the upper cover 7, and the discharge pipe 4 is installed on the lower cover. 8. The ring 11 is composed of two semi-circular metal retaining rings, each metal retaining ring having a mating piece at both ends, and each mating piece having a threaded hole; the mating pieces on corresponding sides of the two metal retaining rings are connected together by bolts and nuts; the top surface of the filter element body 1 has multiple annularly distributed grooves 13, each groove 13 having an electric heating element 14 installed in it; the bottom surface of the groove 13 and the bottom surface of the filter element sleeve 5 are set on the same horizontal plane; the inner wall of the filter element body 1 near the discharge pipe 4 is funnel-shaped; a throttling sealing valve 15 is installed on the discharge pipe 4.

[0021] Working principle: In actual use, the molten material to be filtered is fed into the filter element body 1 through the feed pipe 3. Because the inner wall of the filter element body 1 is a smooth plane and the outer wall is a corrugated surface, the impact energy of the molten material entering the filter element body 1 and impacting the side wall is transferred to the outer corrugated surface. The elastic deformation effect of the corrugated structure not only reduces the impact energy of the molten material on the filter element body 1 after passing through the feed pipe 3, avoiding stress concentration, but also increases the radial expansion of the entire filter element body 1 after contacting the high-temperature molten material, thereby improving the overall deformation resistance of the filter element. After reaching the filter element body 1, the melt slowly flows to the filter element holder 5 and comes into contact with the metal mesh layer 6, allowing the metal mesh layer 6 to filter the melt. Because there are multiple metal mesh layers 6, and the mesh size of the metal mesh layers 6 gradually increases along the direction from the feed pipe 3 to the discharge pipe 4, all the metal mesh layers 6 form a gradient filtration structure from coarse filtration to fine filtration. This ensures the filtration effect while also providing some support between adjacent metal mesh layers 6, preventing the phenomenon of overload deformation of a single mesh layer and further improving the deformation resistance. Finally, the melt filtered through multiple metal mesh layers 6 can be discharged through the discharge pipe 4.

[0022] Meanwhile, because the outer surface of the filter element body 1 is also coated with a ceramic-metal composite coating 2, the ceramic-metal composite coating 2 can form a high-temperature resistant and deformation-resistant protective layer on the outside of the filter element body 1, further improving the overall service life and deformation resistance of the filter element; when it is necessary to replace the internal metal mesh layer 6 or the filter element sleeve 5, or when it is necessary to clean the inside of the filter element body 1, the bolts and nuts on the ring 11 can be removed first, so that the fixing effect of the ring 11 between the upper cover 7 and the filter element body 1 and between the lower cover 8 and the filter element body 1 disappears; at this time, the ring 11 can be removed. 1. Remove the entire filter element and pull the upper cover 7 and lower cover 8 outwards to separate the annular protrusion 12 from the first annular groove 9. This allows the upper cover 7 and lower cover 8 to be separated from the filter element body 1, facilitating the inspection or cleaning of the internal metal mesh layer 6. During the operation of the filter element, to prevent the internal molten material from sticking to the inner wall of the filter element body 1 or blocking the mesh of the metal mesh layer 6 due to temperature drop, all the parallel heating elements 14 can be energized. This allows the heating elements 14 to generate heat to heat and keep the internal environment of the filter element body 1 warm, ensuring the normal operation of the filtration process.

Claims

1. A high-strength melt filter element that is not easily deformed, characterized in that: It includes a filter element body (1), and the inner wall of the filter element body (1) is a smooth plane; The outer wall of the filter element body (1) is corrugated, and the outer wall of the filter element body (1) is coated with a ceramic-metal composite coating (2); the two ends of the filter element body (1) are respectively equipped with a feed pipe (3) and a discharge pipe (4); a filter element sleeve (5) is welded on the inner wall of the filter element body (1), and multiple uniformly distributed metal mesh layers (6) are welded on the filter element sleeve (5); the mesh count of all metal mesh layers (6) gradually increases along the direction from the feed pipe (3) to the discharge pipe (4), and the mesh between each two adjacent metal mesh layers (6) is staggered.

2. The high-strength melt filter element that is not easily deformed according to claim 1, characterized in that: The filter element body (1) is provided with an upper cover (7) and a lower cover (8) at both ends. The inner sidewalls of the upper cover (7) and the lower cover (8) are provided with a first annular groove (9). The outer sidewalls of the upper cover (7) and the lower cover (8) are provided with a second annular groove (10) at the positions corresponding to the upper and lower sides of the first annular groove (9). Each second annular groove (10) is equipped with a ring hoop (11). The two ends of the outer sidewall of the filter element body (1) are provided with annular protrusions (12) that cooperate with the first annular groove (9).

3. The high-strength melt filter element that is not easily deformed according to claim 2, characterized in that: The edges of the upper and lower sides of the annular protrusion (12) are both arc-shaped; the feed pipe (3) is installed on the upper cover (7); the discharge pipe (4) is installed on the lower cover (8).

4. A high-strength melt filter element that is not easily deformed according to claim 2, characterized in that: The ring clamp (11) is composed of two semi-circular metal retaining rings. Each metal retaining ring has a mating piece at both ends, and each mating piece has a threaded hole. The mating pieces on the corresponding sides of the two metal retaining rings are connected together by bolts and nuts.

5. A high-strength melt filter element that is not easily deformed according to claim 1, characterized in that: The top surface of the filter element body (1) is provided with a plurality of annularly distributed grooves (13), and each groove (13) is equipped with an electric heating element (14); the bottom surface of the groove (13) and the bottom surface of the filter element sleeve (5) are set on the same horizontal plane.

6. A high-strength melt filter element that is not easily deformed according to any one of claims 1 to 5, characterized in that: The inner wall of the filter element body (1) near the discharge pipe (4) is funnel-shaped; a throttling sealing valve (15) is installed on the discharge pipe (4).

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