A melt filter cartridge with replaceable sinter screen

Abstract

The utility model discloses a kind of melt filter elements of replaceable sintering screen, it includes shell (1), two chutes (2) are equipped on the inner side wall of shell (1);The inner bottom surface of each chute (2) and each inner side wall are all bonded with sealing layer (3), each chute (2) is slidably installed with slide bar (4) in;The inner side wall between two slide bars (4) is fixedly installed with sintering screen mounting rack (5), and multiple sintering screens (6) are provided in sintering screen mounting rack (5);The top end portion between two slide bars (4) is sleeved with first sealing ring (7);Upper cover body (8) and lower cover body (9) are threadedly installed on shell (1), and second sealing ring (10) is installed in upper cover body (8) and lower cover body (9).The utility model not only can reduce maintenance cost, but also has the advantages that sintering screen replacement maintenance is convenient, work stability is high, convenient to use and filtering effect is good.

Description

Technical Field

[0001] This utility model relates to a melt filter element for a melt filtration device, and more particularly to a melt filter element with a replaceable sintered mesh. Background Technology

[0002] In the production of synthetic fibers, the polymer melt of the raw materials needs to be filtered. Because the melt temperature is high and it exerts a certain impact on the internal filter element (sintered mesh), and because the intercepted impurities remain on the filter element (sintered mesh), the internal filter element (sintered mesh) needs to be replaced after a certain period of operation. However, traditional melt filter cartridges have the filter element (sintered mesh) welded integrally to the outer shell, requiring specialized tools for cutting or replacing the entire filter cartridge when replacing the filter element, resulting in high overall maintenance costs. Therefore, existing melt filtration devices using integrated filter cartridges suffer from the problem of high maintenance costs. Utility Model Content

[0003] The purpose of this invention is to provide a melt filter element with a replaceable sintered mesh. This invention has the advantage of low maintenance cost.

[0004] The technical solution of this utility model is as follows: A melt filter element with replaceable sintered mesh includes a shell, and two symmetrically distributed sliding grooves are provided on the inner sidewall of the shell; a sealing layer is adhered to the inner bottom surface and the inner sidewall of each sliding groove, and a sliding strip is slidably installed in each sliding groove; a sintered mesh mounting frame is fixedly installed between the inner sidewalls of the two sliding strips, and multiple evenly distributed sintered meshes are arranged in the sintered mesh mounting frame; a first sealing ring is sleeved between the top ends of the two sliding strips; an upper cover and a lower cover are threadedly installed at the top and bottom ends of the shell, respectively, and a second sealing ring is installed in both the upper cover and the lower cover; the sliding grooves and sliding strips allow the entire sintered mesh mounting frame to slide on the shell, which facilitates the replacement of the sintered mesh compared to the previous integrated filter element; the sealing layer, the first sealing ring, and the second sealing ring ensure the sealing effect between the sliding strip and the sliding groove, between the upper cover and the top end of the sliding groove, between the upper cover and the shell, and between the lower cover and the shell, ensuring the stable operation of the filtration process.

[0005] In the aforementioned replaceable sintered mesh melt filter element, a first annular groove is provided on the top surface of the first sealing ring, and a handle is installed in the first annular groove; the two ends of the handle are respectively rotatably installed at the ends of two slide bars; the handle further facilitates the replacement of the sintered mesh mounting bracket and makes it convenient to use; and the first annular groove can hide the handle during operation, ensuring stable operation.

[0006] In the aforementioned replaceable sintered mesh melt filter element, an opening for taking out a handle is provided on the side of the first annular groove away from the central axis of the outer shell; the opening facilitates the flipping of the handle and further facilitates its use.

[0007] In the aforementioned replaceable sintered mesh melt filter element, the top and bottom ends of the side of the sintered mesh mounting frame are provided with second annular grooves, and a third sealing ring is adhered in each second annular groove; the outer side of the third sealing ring is in contact with the inner sidewall of the outer shell; the setting of the third sealing ring can further increase the sealing effect between the sintered mesh mounting frame and the inner sidewall of the outer shell, preventing the melt from flowing from the sintered mesh mounting frame and the inner sidewall of the outer shell to the lower cover, thus ensuring the filtration effect.

[0008] In the aforementioned replaceable sintered mesh melt filter element, the sintered mesh is made of stainless steel or nickel-based alloy powder sintered together.

[0009] In the aforementioned replaceable sintered mesh melt filter element, a feed pipe is installed on the upper cover; a discharge pipe is installed on the lower cover, and a valve is provided on the discharge pipe.

[0010] Compared with existing technologies, this utility model improves upon existing melt filter elements by providing two symmetrically distributed sliding grooves on the inner wall of the outer shell. Each groove contains a sliding strip, and the sintered mesh mounting frame is installed between the two sliding strips. This allows the sintered mesh mounting frame and the sintered mesh mounted on it to be easily removed for replacement or maintenance by pulling the sliding strips, simplifying replacement and maintenance. Compared to previous melt filter elements with an integral structure of the sintered mesh and outer shell, this significantly reduces maintenance costs. Furthermore, by providing a first sealing layer at the top of the two sliding strips… The sealing rings, with a sealing layer adhered to each inner wall of the chute, together with the second sealing rings set inside the upper and lower covers, ensure a good sealing state between the internal environment of the entire shell and the connection between the chute and the slide strip during the filtration process, thus ensuring stable filtration. At the same time, the upper and lower covers are threaded onto the shell, making it easy to remove or install them. This facilitates assembly and provides sufficient operating space for the removal and installation of the sintered mesh frame, making it convenient for the replacement and maintenance of the sintered mesh.

[0011] Furthermore, this utility model also features a handle rotatably mounted at the top of the two slide bars, which facilitates pulling the slide bars and thus makes it easier to remove the internal sintered mesh frame and sintered mesh from the outer shell. A first annular groove on the top surface of the first sealing ring allows the handle to be concealed during the assembly or normal operation of the melt filter element, preventing insufficient sealing between the upper cover and the outer shell and ensuring operational stability. Additionally, the outer wall of the first annular groove... The design incorporates an opening for easy rotation of the handle, enhancing usability. Second annular grooves, each containing a third sealing ring, are located at the top and bottom of the sintered mesh mounting frame. These third sealing rings improve the seal between the mounting frame and the inner wall of the outer casing, preventing molten material from leaking out and ensuring effective filtration. A valve on the discharge pipe allows for easy adjustment of the pipe's opening and closing, facilitating the discharge of molten material and improving usability. Therefore, this invention not only reduces maintenance costs but also offers advantages such as convenient sintered mesh replacement and maintenance, high operational stability, ease of use, and excellent filtration performance. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a top view of the outer casing;

[0014] Figure 3 yes Figure 1 A magnified view of a section at point A in the middle;

[0015] Figure 4 yes Figure 2 A magnified view of a section at point B in the middle;

[0016] Figure 5 yes Figure 1 A magnified view of a section at point C.

[0017] The markings in the attached diagram are as follows: 1-outer shell, 2-slide groove, 3-sealing layer, 4-slide bar, 5-sintered mesh mounting bracket, 6-sintered mesh, 7-first sealing ring, 8-upper cover, 9-lower cover, 10-second sealing ring, 11-first annular groove, 12-handle, 13-second annular groove, 14-third sealing ring, 15-feed pipe, 16-discharge pipe. 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 replaceable sintered mesh melt filter element, configured as follows: Figures 1 to 5 As shown, the device includes an outer shell 1, on the inner wall of which are two symmetrically distributed grooves 2; a sealing layer 3 is adhered to the inner bottom surface and the inner wall of each groove 2, and a slide bar 4 is slidably installed in each groove 2; a sintered mesh mounting frame 5 is fixedly installed between the inner walls of the two slide bars 4, and multiple evenly distributed sintered meshes 6 are arranged in the sintered mesh mounting frame 5; a first sealing ring 7 is sleeved between the top ends of the two slide bars 4; an upper cover 8 and a lower cover 9 are threadedly installed at the top and bottom ends of the outer shell 1, respectively, and a second sealing ring 10 is installed in both the upper cover 8 and the lower cover 9.

[0020] The top surface of the first sealing ring 7 is provided with a first annular groove 11, and a handle 12 is installed in the first annular groove 11. The two ends of the handle 12 are respectively rotatably installed at the ends of two slide bars 4. An opening for taking out the handle 12 is provided on the side of the first annular groove 11 away from the central axis of the outer shell 1. The top and bottom ends of the side of the sintered mesh mounting frame 5 are provided with second annular grooves 13, and a third sealing ring 14 is adhered in each second annular groove 13. The outer side of the third sealing ring 14 is attached to the inner side wall of the outer shell 1. The sintered mesh 6 is made of stainless steel or nickel-based alloy powder sintering. A feed pipe 15 is installed on the upper cover 8. A discharge pipe 16 is installed on the lower cover 9, and a valve is provided on the discharge pipe 16.

[0021] Working principle: When it is necessary to replace the internal sintering mesh 6, first stop feeding the melt into the feed pipe 15 and open the valve to allow the filtered melt to be discharged from the discharge pipe 16. After no more melt is discharged from the discharge pipe 16, unscrew the upper cover 8 from the outer shell 1. Then, fold the handle 12 upward through the opening on the first annular groove 11, so that the handle 12 is disengaged from the first annular groove 11 and changes from being perpendicular to the slide bar 4 to being parallel to the slide bar 4. Then, by pulling the handle 12 upward, the slide bar 4 can be driven to slide upward along the slide groove 2. As the slider 4 slides upward, it can move the sintering mesh mounting bracket 5 and the sintering mesh 6 together upward, eventually causing the slider 4 to separate from the groove 2 and remove the sintering mesh mounting bracket 5 and the sintering mesh 6 from the outer shell 1. When replacing the sintering mesh, simply align the slider 4 with the groove 2 and apply downward force through the handle 12 so that the slider 4 can slide into the outer shell 1 along the groove 2. After the bottom end of the slider 4 contacts the bottom end of the groove 2, the top end of the slider 4 is just flush with the top surface of the outer shell 1. Finally, screw the upper cover 8 back onto the outer shell 1.

Claims

1. A replaceable sintered mesh melt filter element, characterized in that: The shell (1) includes a shell, on which two symmetrically distributed grooves (2) are provided on the inner sidewall of the shell (1); a sealing layer (3) is adhered to the inner bottom surface and the inner sidewall of each groove (2), and a slide bar (4) is slidably installed in each groove (2); a sintered mesh mounting frame (5) is fixedly installed between the inner sidewalls of the two slide bars (4), and multiple evenly distributed sintered meshes (6) are provided in the sintered mesh mounting frame (5); a first sealing ring (7) is sleeved between the top ends of the two slide bars (4); an upper cover (8) and a lower cover (9) are threadedly installed on the top and bottom ends of the shell (1), and a second sealing ring (10) is installed in both the upper cover (8) and the lower cover (9).

2. The replaceable sintered mesh melt filter element according to claim 1, characterized in that: The top surface of the first sealing ring (7) is provided with a first annular groove (11), and a handle (12) is installed in the first annular groove (11); the two ends of the handle (12) are respectively rotatably installed at the ends of the two slide bars (4).

3. The replaceable sintered mesh melt filter element according to claim 2, characterized in that: An opening for taking out the handle (12) is provided on the side of the first annular groove (11) away from the central axis of the outer shell (1).

4. The replaceable sintered mesh melt filter element according to claim 1, characterized in that: The top and bottom ends of the side of the sintered mesh mounting frame (5) are provided with second annular grooves (13), and a third sealing ring (14) is glued in each second annular groove (13); the outer side of the third sealing ring (14) is in contact with the inner side wall of the outer shell (1).

5. The replaceable sintered mesh melt filter element according to claim 1, characterized in that: The sintered mesh (6) is made of stainless steel or nickel-based alloy powder sintered together.

6. A replaceable sintered mesh melt filter element according to any one of claims 1 to 5, characterized in that: The upper cover (8) is equipped with a feed pipe (15); the lower cover (9) is equipped with a discharge pipe (16), and a valve is provided on the discharge pipe (16).

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