Basket filter

Abstract

The utility model discloses a basket type filter which comprises a barrel body, one side of the barrel body is detachably connected with a first sealing cover, two sides of the first sealing cover are detachably connected with a plurality of lifting ring nuts, the lifting ring nuts are detachably connected with quick-assembly fastening bolts, a plurality of barrel bodies are internally provided with composite filter baskets, and the composite filter baskets are detachably connected with the first sealing cover. The composite filter basket comprises a small-caliber inlet mesh basket, one side of the small-caliber inlet mesh basket is provided with a sealing surface, the other side of the small-caliber inlet mesh basket is fixedly connected with a large-caliber dirt holding mesh basket, a ten-mesh screen is arranged in the large-caliber dirt holding mesh basket, the top of the large-caliber dirt holding mesh basket is provided with a lifting handle, and the lifting handle is fixedly connected with the small-caliber inlet mesh basket. The filter cake cleaning device has the advantages that the filter cake cleaning device is convenient to disassemble and clean, and filter cakes are prevented from moving back.

Description

Technical Field

[0001] This utility model relates to the field of pipeline filtration technology, specifically a basket filter. Background Technology

[0002] Basket filters are commonly used filtration equipment in industrial production and are widely used in industries such as petroleum, chemical, pharmaceutical, and food. Their main function is to intercept solid particles in the liquid to be filtered through the filter basket, ensuring the purity of the liquid and thus guaranteeing the normal operation of pipelines and equipment systems. Existing basket filters typically include components such as a cylinder, filter basket, and cover. The liquid to be filtered enters the cylinder through the inlet, is filtered by the filter basket, and is discharged from the outlet. During use, solid particles gradually accumulate in the filter basket, forming a filter cake, so it needs to be cleaned regularly to maintain filtration efficiency.

[0003] However, existing basket filters have a low dirt-holding capacity, leading to frequent cleaning. Cleaning typically requires disassembling the flange structure and removing the filter basket, a cumbersome and time-consuming process. Furthermore, during basket filtration, the filter cake can easily flow back to the inlet, causing pipe blockage and affecting the normal operation of the equipment. Therefore, it is essential to design a basket filter that is easy to disassemble and clean, and prevents filter cake backflow. Utility Model Content

[0004] The purpose of this invention is to provide a basket filter to solve the problems mentioned in the background art, such as the filter cake of existing basket filters easily flowing back to the inlet, causing pipe blockage, and the time-consuming and laborious cleaning caused by the difficulty in disassembling the filter basket.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a basket filter, including a cylindrical body, wherein a composite filter basket is arranged inside the cylindrical body, the composite filter basket includes a small-diameter inlet mesh basket, a sealing surface is provided on one side of the small-diameter inlet mesh basket, a large-diameter dirt-collecting mesh basket is fixedly connected to the other side of the small-diameter inlet mesh basket, a ten-mesh wire mesh is arranged inside the large-diameter dirt-collecting mesh basket, a handle is provided on the top of the large-diameter dirt-collecting mesh basket, and a compression spring is provided on one side of the large-diameter dirt-collecting mesh basket.

[0006] According to the above technical solution, a first sealing cover is detachably connected to one side of the cylinder, and a number of lifting eye nuts are detachably connected to both sides of the first sealing cover, and quick-release fastening bolts are detachably connected to the number of lifting eye nuts.

[0007] According to the above technical solution, the bottom of the cylinder is provided with a liquid inlet and the top of the cylinder is provided with a liquid outlet.

[0008] According to the above technical solution, flange interfaces are provided on the liquid inlet and liquid outlet.

[0009] According to the above technical solution, a second sealing cover is fixedly connected to the side of the cylinder away from the first sealing cover.

[0010] According to the above technical solution, a fixing frame is provided at the bottom of the large-diameter sewage basket.

[0011] According to the above technical solution, support plates are provided on both sides of the sealing surface.

[0012] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0013] (1) By setting up a composite filter basket, which consists of a small-diameter inlet mesh basket and a large-diameter dirt-collecting mesh basket, the large-diameter dirt-collecting mesh basket has a large internal space, which can accommodate a large amount of impurities to form a filter cake. The connection structure of the small-diameter inlet mesh basket and the large-diameter dirt-collecting mesh basket forms a continuous and closed filtration channel. This tightly fitted structure effectively blocks the channel for filter cake backflow. It is difficult for the filter cake to backflow to the liquid inlet through the connection part of the small-diameter inlet mesh basket and the large-diameter dirt-collecting mesh basket, thereby preventing filter cake backflow and pipe blockage.

[0014] (2) By setting quick-release fastening bolts and lifting ring nuts, the installation and disassembly of the composite filter basket are greatly facilitated. When the composite filter basket needs to be cleaned, the operator only needs to turn the lifting ring nut to easily open the first sealing cover without complicated tools, so that the cleaning work of the composite filter basket can be completed in a short time, saving a lot of time and labor costs. Attached Figure Description

[0015] 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:

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is the right view of this utility model;

[0018] Figure 3 This is a schematic diagram of the composite filter basket structure of this utility model;

[0019] In the diagram: 10. Cylinder body; 11. Sealing cap; 12. Lifting eye nut; 13. Quick-release fastening bolt; 14. Liquid inlet; 15. Liquid outlet; 16. Second sealing cap; 20. Composite filter basket; 21. Small-diameter inlet mesh basket; 22. Sealing surface; 23. Large-diameter sludge collection mesh basket; 24. Ten-mesh wire mesh; 25. Handle; 26. Compression spring; 27. Fixing frame; 28. Support plate. Detailed Implementation

[0020] To enable those skilled in the art to better understand the present invention, the solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0021] Please see Figure 1-3 The present invention provides a technical solution: a basket filter, including a cylinder 10, a composite filter basket 20 inside the cylinder 10, the composite filter basket 20 including a small-diameter inlet mesh basket 21, a sealing surface 22 on one side of the small-diameter inlet mesh basket 21, a large-diameter dirt-collecting mesh basket 23 fixedly connected to the other side of the small-diameter inlet mesh basket 21, a ten-mesh wire mesh 24 inside the large-diameter dirt-collecting mesh basket 23, a handle 25 on the top of the large-diameter dirt-collecting mesh basket 23, and a compression spring 26 on one side of the large-diameter dirt-collecting mesh basket 23;

[0022] Through this technical solution, the large-diameter dirt-collecting basket 23 has a large internal space, which can accommodate a large amount of impurities to form a filter cake. The connection structure between the small-diameter inlet basket 21 and the large-diameter dirt-collecting basket 23 forms a continuous and closed filtration channel. This tightly fitting structure effectively blocks the backflow of the filter cake. It is difficult for the filter cake to backflow to the liquid inlet 14 through the connection between the small-diameter inlet basket 21 and the large-diameter dirt-collecting basket 23, thereby preventing the filter cake from backflowing and causing pipeline blockage. The handle 25 makes it convenient for the staff to remove the composite filter basket 20 from the cylinder 10. The compression spring 26 can apply a certain pressure to the composite filter basket 20 to ensure its stable position in the cylinder 10 and prevent the composite filter basket 20 from shaking or shifting.

[0023] Furthermore, a first sealing cover 11 is detachably connected to one side of the cylinder 10, and several eye bolts 12 are detachably connected to both sides of the first sealing cover 11. Several eye bolts 12 are detachably connected to quick-release fastening bolts 13.

[0024] With this technical solution, the first sealing cover 11 is detachably connected to the cylinder 10 through several lifting eye nuts 12 and quick-release fastening bolts 13, which greatly simplifies the process of installing, disassembling and cleaning the composite filter basket 20.

[0025] Furthermore, a liquid inlet 14 is provided at the bottom of the cylinder 10, and a liquid outlet 15 is provided at the top of the cylinder 10;

[0026] With this technical solution, the liquid to be filtered enters from the inlet 14, is filtered by the composite filter basket 20, and then flows out from the outlet 15. This vertical flow design allows the liquid to be filtered to pass through the composite filter basket 20 evenly, avoiding the formation of local reverse eddies in the cylinder 10 that would cause the filter cake to roll up and become entangled.

[0027] Furthermore, flange interfaces are provided on the liquid inlet 14 and the liquid outlet 15;

[0028] With this technical solution, the connection can be quickly completed simply by aligning the flange interfaces of the inlet 14 and outlet 15 with the corresponding flange interfaces of the upstream and downstream pipelines and tightening them with bolts, thereby shortening the installation time and improving work efficiency.

[0029] Furthermore, a second sealing cap 16 is fixedly connected to the other side of the cylinder 10;

[0030] With this technical solution, the second sealing cover 16 is tightly connected to the cylinder 10, forming a closed filtration space and ensuring the sealing of the entire filtration process.

[0031] Furthermore, the bottom of the large-diameter sewage basket 23 is equipped with a fixing frame 27;

[0032] Through this technical solution, the fixing frame 27 provides a stable support for the large-diameter sludge basket 23, preventing the composite filter basket 20 from sinking and deforming due to excessive weight, and ensuring that the composite filter basket 20 maintains a stable position and shape within the cylinder 10.

[0033] Furthermore, support plates 28 are provided on both sides of the sealing surface 22;

[0034] Through this technical solution, the support plate 28 provides additional support for the sealing surface 22, preventing it from deforming under pressure.

[0035] Working principle: The filtrate flows into the filter through the inlet 14 at the bottom of the cylinder 10. After entering the cylinder 10, the filtrate first flows into the small-diameter inlet basket 21 of the composite filter basket 20 through the sealing surface 22. After being initially intercepted by the small-diameter inlet basket 21, it flows into the large-diameter dirt-collecting basket 23. Particulate impurities are intercepted and accumulate between the baskets to form a filter cake. The filter cake is fixed at the connection between the large-diameter dirt-collecting basket 23 and the small-diameter inlet basket 21. After filtration, the filtrate is discharged from the outlet 15.

[0036] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation or specific orientation structure and operation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0037] In the description of this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this utility model, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, those skilled in the art can combine different embodiments or examples and features of different embodiments or examples described in this utility model without contradiction.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A basket filter, comprising a cylindrical body (10), characterized in that: The cylindrical body (10) is equipped with a composite filter basket (20), which includes a small-diameter inlet mesh basket (21). A sealing surface (22) is provided on one side of the small-diameter inlet mesh basket (21). A large-diameter dirt-collecting mesh basket (23) is fixedly connected to the side of the small-diameter inlet mesh basket (21) away from the sealing surface (22). A ten-mesh wire mesh (24) is provided inside the large-diameter dirt-collecting mesh basket (23). A handle (25) is provided on the top of the large-diameter dirt-collecting mesh basket (23). A compression spring (26) is provided on one side of the large-diameter dirt-collecting mesh basket (23).

2. A basket filter according to claim 1, characterized in that: The cylinder (10) is detachably connected to a first sealing cover (11) on one side, and a number of eye bolts (12) are detachably connected to both sides of the first sealing cover (11), and the number of eye bolts (12) are detachably connected to quick-release fastening bolts (13).

3. A basket filter according to claim 1, characterized in that: The bottom of the cylinder (10) is provided with a liquid inlet (14), and the top of the cylinder (10) is provided with a liquid outlet (15).

4. A basket filter according to claim 3, characterized in that: Flange interfaces are provided on the liquid inlet (14) and liquid outlet (15).

5. A basket filter according to claim 1, characterized in that: A second sealing cover (16) is fixedly connected to the side of the cylinder (10) away from the first sealing cover (11).

6. A basket filter according to claim 1, characterized in that: The bottom of the large-diameter waste collection basket (23) is equipped with a fixing frame (27).

7. A basket filter according to claim 1, characterized in that: Support plates (28) are provided on both sides of the sealing surface (22).

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