A multi-layer filter cartridge for a baghouse dust collector

Abstract

The utility model relates to industrial dust removal technical field, concretely is a kind of multilayer filter formula dust collector filter core, it includes: bottom disc, the top surface middle part of bottom disc is equipped with support keel, the outside of support keel is equipped with filter screen, the top surface of support keel is equipped with top cover, the surface of top cover is equipped with air inlet;Connecting structure is installed on the bottom disc, and the connecting structure includes outer thread, and the outer thread is fixedly installed on the top surface of bottom disc.The utility model can increase the distance of thin rod by setting telescopic movable taper block on the bottom surface of top cover, and the bottom end of taper block is conical, can reduce the space occupation of taper block bottom end inside supporting cylinder, to facilitate the taper block and thin rod are inserted in supporting cylinder, provide guidance and limit for the installation of top cover, and rotating hand screw thread block, the bottom end of hand screw thread block can be rotated into inner thread cylinder, so that top cover can be stably installed, improve the installation convenience of top cover.

Description

Technical Field

[0001] This utility model relates to the field of industrial dust removal technology, specifically a multi-layer filtration dust collector filter element. Background Technology

[0002] Filter cartridge dust collectors not only have the characteristics of high dust removal efficiency and low emission concentration of pulse jet dust collectors, but also have the characteristics of stability and reliability, low energy consumption and small footprint. They are particularly suitable for handling large volumes of flue gas. The filter cartridges of general dust collectors have a layered structure, which makes it inconvenient to remove and discharge the filter cartridges.

[0003] In response, Chinese patent application number CN202422247039.5 discloses a multi-layer filtration dust collector filter element, including a supporting keel and a chassis. The supporting keel is welded to the center of the chassis, and an inner ring filter screen is fitted over the supporting keel. The chassis also has circumferentially evenly distributed outer support columns and support columns welded on it. The outer support columns are located on the outermost ring and are situated within the outer support columns and supporting keel. An outer ring filter screen is installed outside the outer support columns, and a central filter screen is positioned between the outer support columns and support columns. Its advantages are: firstly, the multi-layer filter element improves dust removal efficiency; secondly, the structure is simple, and installation and disassembly are convenient; and thirdly, the manufacturing cost is low, while maintaining good dust removal performance.

[0004] The device uses threaded blocks to provide connection and positioning for the installation of the upper cover. However, there is no connection or guide between the threaded blocks and the support column, which makes it easy for the threaded blocks to shift from the position of the support column during the installation of the upper cover, making it difficult to align. In addition, the top surface of the filter screen is easily deformed by the abutment of the threaded blocks, affecting the performance of the filter element.

[0005] Therefore, in order to solve the above problems, a multi-layer filtration dust collector filter element is proposed. Utility Model Content

[0006] The purpose of this utility model is to provide a multi-layer filtration dust collector filter element to solve the problem mentioned in the background art that the prior art device provides connection and positioning for the installation of the upper cover by setting threaded blocks. However, there is no connection and guidance between the threaded blocks and the support columns, which makes it easy for the threaded blocks to shift from the position of the support columns during the installation of the upper cover, making it difficult to align. In addition, the top surface of the filter screen is easily deformed by the abutment of the threaded blocks, affecting the use effect of the filter element.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a multi-layer filtration dust collector filter element, comprising: a chassis, a supporting keel installed in the middle of the top surface of the chassis, a filter screen installed on the outer side of the supporting keel, a top cover installed on the top surface of the supporting keel, and an air inlet opened on the surface of the top cover; The chassis is equipped with a connecting structure, which includes an external thread. The external thread is fixedly installed on the top surface of the chassis. A support cylinder and an internal thread cylinder are fixedly installed on the outer side of the external thread via the thread. A conical block is inserted into the inner side of the support cylinder. A sleeve is fixedly connected to the upper end of the conical block. A movable groove is opened inside the top surface of the sleeve. A connecting rod is inserted into the inner side of the movable groove. A thin rod is fixedly connected to the upper end of the connecting rod. An insert block is fixedly connected to the top surface of the thin rod. An insert post is fixedly installed on the bottom surface of the top cover. A hand-rotating threaded block is movably installed on the top surface of the top cover via a bearing.

[0008] Preferably, the external thread, support cylinder, and insert are arranged vertically.

[0009] Preferably, the diameter of the cone block is the same as the inner diameter of the support cylinder, and the bottom end of the cone block is conical.

[0010] Preferably, the lower end of the connecting rod is movably mounted inside the movable groove.

[0011] Preferably, the lower end of the insertion post is inserted into the top surface of the insertion block.

[0012] Preferably, the internally threaded cylinder is located on both sides of the supporting keel, and the bottom end of the hand-rotating threaded block is movably installed inside the upper end of the internally threaded cylinder via a thread.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model can increase the distance of the thin rod by setting a telescopic and movable cone block on the bottom surface of the top cover. The bottom end of the cone block is conical, which can reduce the space occupied by the bottom end of the cone block inside the support cylinder, so as to facilitate the insertion of the cone block and the thin rod into the support cylinder, providing guidance and limiting for the installation of the top cover. Furthermore, by rotating the hand-threaded block, the bottom end of the hand-threaded block can be screwed into the internal threaded cylinder, so that the top cover can be installed stably, improving the ease of installation of the top cover.

[0014] This utility model features a connecting structure with a rotating support cylinder and an internally threaded cylinder. The support cylinder and internally threaded cylinder are threaded onto the outside of the external thread, allowing them to be fixed on the chassis. Three sets of filter screens are then fitted onto the outside of the inner and outer support cylinders, ensuring the bottom surface of the filter screens abuts against the top surface of the chassis. A rotating insert block is then installed at the bottom of the insert post, fixing the thin rod to the bottom surface of the top cover. The top cover is then placed on top of the supporting keel. Under gravity, the cone block moves the sleeve downwards, allowing the connecting rod to move upwards within the movable groove, extending the length of the lower end of the thin rod. Moving the top cover downwards, the cone block's conical bottom reduces its size. The space occupied by the bottom end inside the support cylinder facilitates the insertion of the cone block and thin rod into the support cylinder, providing guidance and limiting for the installation of the top cover. When the cone block contacts the top surface of the chassis, the thin rod continues to descend inside the support cylinder. At this time, the thin rod drives the connecting rod to move downward inside the movable groove. Then, the bottom end of the hand-operated threaded block contacts the top surface of the internal threaded cylinder. Rotating the hand-operated threaded block allows the bottom end of the hand-operated threaded block to be screwed into the upper inner side of the internal threaded cylinder through the thread. The top cover gradually approaches the filter screen, and the bottom surface of the top cover can abut against the top surface of the filter screen, which can stably install the filter screen and effectively avoid damage to the filter screen. The filter screen is provided in three sets, and the three sets of filter screens work together to enhance the dust removal effect. Attached Figure Description

[0015] Figure 1 This is a front view schematic diagram of the structure of this utility model; Figure 2 This is an exploded view of the structure of this utility model; Figure 3 This is an exploded view of the support cylinder structure of this utility model; Figure 4 This is a front view sectional view of the support cylinder and cone block of this utility model.

[0016] In the diagram: 1. Chassis; 11. Support keel; 12. Filter screen; 13. Top cover; 14. Air inlet; 2. Connecting structure; 21. External thread; 22. Support cylinder; 23. Conical block; 24. Sleeve; 25. Movable groove; 26. Connecting rod; 27. Thin rod; 28. Insert block; 29. ​​Insert post; 210. Internal threaded cylinder; 211. Hand-turned threaded block. Detailed Implementation

[0017] 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.

[0018] Please see Figures 1-4 The present invention provides an embodiment of a multi-layer filtration dust collector filter element: The chassis 1, support frame 11, filter 12, top cover 13 and air inlet 14 used in this application are products that can be purchased directly on the market. Their principles and connection methods are existing technologies well known to those skilled in the art, so they will not be described in detail here.

[0019] A multi-layer filtration dust collector filter element includes: a chassis 1, a supporting keel 11 installed in the middle of the top surface of the chassis 1, a filter screen 12 installed on the outer side of the supporting keel 11, a top cover 13 installed on the top surface of the supporting keel 11, and an air inlet 14 opened on the surface of the top cover 13. A connecting structure 2 is installed on the chassis 1. The connecting structure 2 includes an external thread 21, which is fixedly installed on the top surface of the chassis 1. A support cylinder 22 and an internal thread cylinder 210 are fixedly installed on the outer side of the external thread 21 via threads. A cone block 23 is inserted into the inner side of the support cylinder 22. A sleeve 24 is fixedly connected to the upper end of the cone block 23. A movable groove 25 is opened inside the top surface of the sleeve 24. A connecting rod 26 is inserted into the inner side of the movable groove 25. A thin rod 27 is fixedly connected to the upper end of the connecting rod 26. An insert block 28 is fixedly connected to the top surface of the thin rod 27. An insert post 29 is fixedly installed on the bottom surface of the top cover 13. A hand-operated threaded block 211 is movably mounted on the top surface of the cover 13 via a bearing. By setting a telescopic cone 23 on the bottom surface of the cover 13, the distance of the thin rod 27 can be increased. The bottom end of the cone 23 is conical, which can reduce the space occupied by the bottom end of the cone 23 inside the support cylinder 22, so as to facilitate the insertion of the cone 23 and the thin rod 27 into the support cylinder 22, providing guidance and limiting for the installation of the cover 13. Rotating the hand-operated threaded block 211 can screw the bottom end of the hand-operated threaded block 211 into the internal threaded cylinder 210, so that the cover 13 can be installed stably, improving the ease of installation of the cover 13.

[0020] Furthermore, the external thread 21, the support cylinder 22, and the insert 29 are vertically arranged, with the external thread 21 cooperating with the insert 29 to provide a connection for the installation of the support cylinder 22 between the chassis 1 and the top cover 13.

[0021] Furthermore, the diameter of the cone 23 is the same as the inner diameter of the support cylinder 22, and the bottom end of the cone 23 is conical. The cone 23 provides guidance and limitation for the installation of the thin rod 27 inside the support cylinder 22.

[0022] Furthermore, the lower end of the connecting rod 26 is movably mounted inside the movable groove 25, and the connecting rod 26 can extend and retract within the movable groove 25, allowing the cone block 23 to move at the lower end of the thin rod 27.

[0023] Furthermore, the lower end of the insert 29 is inserted into the top surface of the insert block 28, and the insert 29, together with the insert block 28, provides positioning for the installation of the top cover 13.

[0024] Furthermore, the internal threaded cylinder 210 is located on both sides of the supporting keel 11, and the bottom end of the hand-threaded block 211 is installed inside the upper end of the internal threaded cylinder 210 through a threaded movement. The hand-threaded block 211 cooperates with the internal threaded cylinder 210 to provide positioning for the installation of the top cover 13.

[0025] Working principle: During assembly, rotating the support cylinder 22 and the internally threaded cylinder 210 allows them to be threaded onto the outside of the external thread 21, thus fixing them onto the chassis 1. Next, three sets of filter screens 12 are fitted onto the outside of the inner and outer sets of support cylinders 22, ensuring the bottom surface of the filter screens 12 abuts against the top surface of the chassis 1. Rotating the insert block 28 and installing it at the bottom of the insert post 29 fixes the thin rod 27 to the bottom surface of the top cover 13. The top cover 13 is then placed on top of the support keel 11. Under gravity, the cone block 23 causes the sleeve 24 to move downwards, allowing the connecting rod 26 to move upwards inside the movable groove 25, extending the length of the lower end of the thin rod 27. Moving the top cover 13 downwards, the bottom end of the cone block 23 becomes conical, reducing the impact of the bottom end of the cone block 23 on the chassis 1. The space occupied inside the support cylinder 22 is designed to facilitate the insertion of the cone block 23 and the thin rod 27 into the support cylinder 22, providing guidance and limiting for the installation of the top cover 13. When the cone block 23 contacts the top surface of the chassis 1, the thin rod 27 continues to descend inside the support cylinder 22. At this time, the thin rod 27 drives the connecting rod 26 to move downward inside the movable groove 25. Then, the bottom end of the hand-rotated threaded block 211 contacts the top surface of the internal threaded cylinder 210. Rotating the hand-rotated threaded block 211 allows the bottom end of the hand-rotated threaded block 211 to be screwed into the upper inner side of the internal threaded cylinder 210 through the thread. The top cover 13 gradually approaches the filter screen 12, and the bottom surface of the top cover 13 can abut against the top surface of the filter screen 12, thus enabling stable installation of the filter screen 12 and effectively preventing damage to the filter screen 12. The filter screen 12 is provided with three sets, and the three sets of filter screens 12 cooperate with each other to enhance the dust removal effect.

[0026] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A multi-layer filtration dust collector filter element, comprising: The chassis (1) has a supporting keel (11) installed in the middle of the top surface of the chassis (1), a filter screen (12) installed on the outside of the supporting keel (11), a top cover (13) installed on the top surface of the supporting keel (11), and an air inlet (14) opened on the surface of the top cover (13). Its features are: A connecting structure (2) is installed on the chassis (1). The connecting structure (2) includes an external thread (21). The external thread (21) is fixedly installed on the top surface of the chassis (1). A support cylinder (22) and an internal thread cylinder (210) are fixedly installed on the outside of the external thread (21) by the thread. A cone block (23) is inserted into the inside of the support cylinder (22). A sleeve (24) is fixedly connected to the upper end of the cone block (23). A movable groove (25) is opened inside the top surface of the sleeve (24). A connecting rod (26) is inserted into the inside of the movable groove (25). A thin rod (27) is fixedly connected to the upper end of the connecting rod (26). An insert block (28) is fixedly connected to the top surface of the thin rod (27). An insert post (29) is fixedly installed on the bottom surface of the top cover (13). A hand-rotating threaded block (211) is movably installed on the top surface of the top cover (13) through a bearing.

2. The multi-layer filtration dust collector filter element according to claim 1, characterized in that: The external thread (21), support cylinder (22) and insert (29) are vertically arranged.

3. The multi-layer filtration dust collector filter element according to claim 1, characterized in that: The diameter of the cone (23) is the same as the inner diameter of the support cylinder (22), and the bottom end of the cone (23) is conical.

4. The multi-layer filtration dust collector filter element according to claim 1, characterized in that: The lower end of the connecting rod (26) is movably mounted inside the movable groove (25).

5. The multi-layer filtration dust collector filter element according to claim 1, characterized in that: The lower end of the insert (29) is inserted into the top surface of the insert block (28).

6. The multi-layer filtration dust collector filter element according to claim 1, characterized in that: The internal threaded cylinder (210) is located on both sides of the supporting keel (11), and the bottom end of the hand-rotating threaded block (211) is installed inside the upper end of the internal threaded cylinder (210) by means of thread.

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