High-strength candle type melt filter element

Abstract

The utility model discloses a high-strength candle type melt filter element which comprises a central column, a melt flowing through hole is formed in the central column, a plurality of melt filtering holes are uniformly distributed in the melt flowing through hole and are communicated with the outer wall of the central column, the outer wall of the central column is connected with a metal filtering material net, and the metal filtering material net is connected with the central column. And the metal filter material net is connected with a reinforcing assembly. The reinforcing assembly comprises a plurality of first stainless steel round bars and a plurality of second stainless steel round bars, the metal filter material net is of a corrugated structure, the plurality of first stainless steel round bars are connected to a plurality of wave crests of the metal filter material net respectively, and the plurality of second stainless steel round bars are connected to a plurality of wave troughs of the metal filter material net respectively. The utility model aims to provide the high-strength candle type melt filter element for overcoming the existing defects, so that the deformation resistance and fracture resistance of the filter element are improved, and the filtering quality and efficiency of melt are ensured.

Description

Technical Field

[0001] This utility model relates to a high-strength candle-type melt filter element. Background Technology

[0002] In many industrial production processes, such as plastic film production, melt filtration is a crucial step in ensuring product quality. Candle-type melt filter cartridges, as commonly used filter elements, directly impact filtration efficiency and production effectiveness due to their performance. Candle-type melt filter cartridges typically consist of a central column, with a metal filter material arranged on the outer side of the column. This metal filter material is usually corrugated to increase the filtration area.

[0003] Traditional candle-type melt filter cartridges, when filtering high-pressure, high-viscosity melts, suffer from insufficient strength. The corrugated pattern of the cartridge easily deforms and folds, resulting in an actual filtration area less than one-quarter of the designed filtration area. This leads to a further increase in melt pressure, allowing crystal points and impurities in the melt to penetrate the cartridge through weak areas of the metal filter media. The inability to effectively intercept these impurities affects the quality of the membrane product, particularly in the manufacturing of optical-grade and high-functionality membranes (such as aluminum-plastic composite (CPP) films), where crystal points and impurities are unacceptable, necessitating a shorter filter replacement cycle. Furthermore, frequent replacement of deformed and damaged cartridges increases production costs and downtime, reducing production efficiency.

[0004] CN210543966U discloses a high-strength candle filter element. It includes an upper end cover, a lower end cover, and a filter layer, with the filter layer disposed between the upper and lower end covers. The filter layer includes at least four vertically placed support bars evenly distributed circumferentially. Several annular wedge-shaped strips are evenly distributed axially on the outer surface of the support bars. The cross-sectional width of the annular wedge-shaped strips decreases radially from the inner to the outer side. Filter gaps are provided between adjacent annular wedge-shaped strips. By employing a combination of support bars and annular wedge-shaped strips, the filter layer effectively solves the technical problem of increased system pressure differential after the filter screen intercepts impurities, leading to excessive pressure during backwashing that breaks the filter screen and causes filter element failure. While this design improves the strength of the filter layer to some extent, the dense arrangement of the support bars and annular wedge-shaped strips increases the contact between the melt and the metal surface in the filter, as well as the filtration dead zones, making it easier for crystal points to form.

[0005] Therefore, a high-strength candle-type melt filter element is proposed to address the above problems. Utility Model Content

[0006] The purpose of this invention is to overcome the existing defects and provide a high-strength candle-type melt filter element, which improves the filter element's resistance to deformation and fracture, and ensures the filtration quality and efficiency of the melt.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a high-strength candle-type melt filter element, comprising a central column, wherein melt flow through holes are opened inside the central column, and a plurality of melt filter holes are evenly distributed in the melt flow through holes, and the plurality of melt filter holes are all connected to the outer wall of the central column, wherein a metal filter mesh is connected to the outer wall of the central column, and a reinforcing component is connected to the metal filter mesh.

[0008] Preferably, the reinforcing component includes multiple first stainless steel round bars and multiple second stainless steel round bars, the metal filter mesh has a corrugated structure, the multiple first stainless steel round bars are respectively connected to multiple crests of the metal filter mesh, and the multiple second stainless steel round bars are respectively connected to multiple troughs of the metal filter mesh.

[0009] Preferably, the bottom of the central column is connected to a bottom threaded interface.

[0010] Preferably, a top clamping nut is connected to the top of the central column, and a top sealing washer is provided between the top clamping nut and the top of the central column.

[0011] Preferably, the first stainless steel round bar and the second stainless steel round bar are connected to the metal filter mesh by spot welding or full welding.

[0012] Preferably, the metal filter mesh is a stainless steel sintered mesh or sintered felt.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This high-strength candle melt filter element, by welding stainless steel round bars at the crests and troughs of the metal filter material mesh, can effectively enhance the corrugation strength of the candle melt filter element, improve the filter element's resistance to deformation and fracture, ensure the filtration area, and extend the service life of the filter element; at the same time, the setting of stainless steel round bars will not affect the filtration area and filtration effect of the metal filter material, ensuring the filtration quality and efficiency of the melt. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0015] Figure 1 This is a cross-sectional view of the high-strength candle-type melt filter element of this utility model;

[0016] Figure 2 This is a side view of the high-strength candle-type melt filter element of this utility model;

[0017] Figure 3 This is a detailed view of the metal filter mesh of this utility model.

[0018] In the diagram: 1. Central column; 2. Melt flow passage; 3. Melt filter hole; 4. Metal filter mesh; 5. First stainless steel round bar; 6. Second stainless steel round bar; 7. Bottom threaded interface; 8. Top clamping nut; 9. Top sealing washer. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-3 A high-strength candle-type melt filter element includes a central column 1, with melt flow through holes 2 inside the central column 1, and multiple melt filter holes 3 evenly distributed inside the melt flow through holes 2, all of which are connected to the outer wall of the central column 1. The outer wall of the central column 1 is connected to a metal filter mesh 4, and a reinforcing component is connected to the metal filter mesh 4.

[0021] Specifically, the reinforcing component includes multiple first stainless steel round bars 5 and multiple second stainless steel round bars 6. The metal filter mesh 4 has a corrugated structure. The multiple first stainless steel round bars 5 are respectively connected to multiple crests of the metal filter mesh 4, and the multiple second stainless steel round bars 6 are respectively connected to multiple troughs of the metal filter mesh 4.

[0022] Specifically, the first stainless steel round bar 5 and the second stainless steel round bar 6 are connected to the metal filter mesh 4 by spot welding or full welding. This structure provides good support for the metal filter mesh 4 and facilitates the flow of the molten material.

[0023] Specifically, the metal filter mesh 4 is made of stainless steel sintered mesh or sintered felt. It can also be a combination mesh.

[0024] Specifically, the metal filter material 4 is welded to the outside of the central column 1. The lengths of the first stainless steel round bar 5 and the second stainless steel round bar 6 are adapted to the width of the corrugations. The diameters of the first stainless steel round bar 5 and the second stainless steel round bar 6 are 2mm, which achieves a good balance between enhancing strength and not affecting the filtration area. The first stainless steel round bar 5 and the second stainless steel round bar 6 are arranged along the extension direction of the corrugations, and the distance between two adjacent stainless steel round bars is 8mm. The reasonable spacing allows the strength of each part of the corrugations to be effectively enhanced.

[0025] Specifically, the diameter of the first stainless steel round bar 5 and the second stainless steel round bar 6 is 1-3 mm, and the axial distance between two adjacent stainless steel round bars is 5-15 mm. The surface roughness of the first stainless steel round bar 5 and the second stainless steel round bar 6 is ra≦0.1 μm.

[0026] Specifically, the bottom of the center column 1 is connected to a bottom threaded interface 7. The top of the center column 1 is connected to a top clamping nut 8, and a top sealing washer 9 is provided between the top clamping nut 8 and the top of the center column 1.

[0027] Specifically, the bottom threaded interface 7 is used for the installation and connection of the filter element to the candle filter body; and the top sealing gasket 9 and top clamping nut 8 are used for sealing the top of the melt, ensuring that the melt flows to the metal filter mesh 4 through the central column 1.

[0028] Specifically, during use, the molten material enters the molten material flow through-hole 2 of the central column 1, and then flows from multiple molten material filter holes 3 on the inner wall to the metal filter mesh 4. Filtration is then performed through the metal filter mesh 4, whose corrugated structure increases the filtration area and improves filtration efficiency. Because the crests and troughs of the corrugated structure are welded with first stainless steel round bars 5 and second stainless steel round bars 6, these stainless steel round bars effectively enhance the strength of the corrugations. This prevents the corrugations from deforming and breaking under the pressure and scouring of the molten material, thereby extending the service life of the filter element and ensuring the stability of the filtration effect.

[0029] This high-strength candle melt filter cartridge effectively enhances the corrugation strength of the candle melt filter cartridge by welding stainless steel round bars at the crests and troughs of the metal filter media mesh 4. This improves the filter cartridge's resistance to deformation and breakage, ensures the filtration area, and extends the service life of the filter cartridge. At the same time, the placement of the stainless steel round bars does not affect the filtration area and filtration effect of the metal filter material, thus ensuring the filtration quality and efficiency of the melt.

[0030] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A high strength candle melt filter element characterized in that, It includes a central column (1), inside which a melt flow through hole (2) is opened, and multiple melt filter holes (3) are evenly distributed in the melt flow through hole (2), and the multiple melt filter holes (3) are all connected to the outer wall of the central column (1). The outer wall of the central column (1) is connected to a metal filter mesh (4), and a reinforcing component is connected to the metal filter mesh (4).

2. The high-strength candle melt core of claim 1, wherein, The reinforcement component includes multiple first stainless steel round bars (5) and multiple second stainless steel round bars (6). The metal filter mesh (4) has a corrugated structure. The multiple first stainless steel round bars (5) are respectively connected to multiple crests of the metal filter mesh (4), and the multiple second stainless steel round bars (6) are respectively connected to multiple troughs of the metal filter mesh (4).

3. The high-strength candle melt core of claim 1, wherein, The bottom of the central column (1) is connected to a bottom threaded interface (7).

4. The high-strength candle melt core of claim 1, wherein, A top clamping nut (8) is connected to the top of the central column (1), and a top sealing washer (9) is provided between the top clamping nut (8) and the top of the central column (1).

5. The high-strength candle melt core of claim 2, wherein, The first stainless steel round bar (5) and the second stainless steel round bar (6) are connected to the metal filter mesh (4) by spot welding or full welding.

6. The high-strength candle melt core of claim 1, wherein, The metal filter mesh (4) is a stainless steel sintered mesh or sintered felt.

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