Keel hoisting structure of large bag-type dust collector

The circular suction cup electromagnet adsorption hoisting structure solves the problem of difficult replacement of the keel of large bag dust collectors, and realizes fast and convenient keel installation.

CN224252362UActive Publication Date: 2026-05-19ZHANGJIAGANG AIER ENVIRONMENTAL PROTECTION ENG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHANGJIAGANG AIER ENVIRONMENTAL PROTECTION ENG CO LTD
Filing Date
2025-06-30
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

During the replacement of the keel of a large bag filter, the keel is long and heavy, making manual replacement difficult.

Method used

The system employs a circular suction cup electromagnet-based hoisting structure. Power is supplied through the hoisting frame and battery module. The electromagnet's attraction force is used to fix the keel, and a mobile crane is used for hoisting to achieve rapid installation of the keel.

Benefits of technology

It simplifies the installation process of the keel, saves manpower, and improves installation efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224252362U_ABST
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Abstract

The utility model discloses a large bag-type dust collector keel hoisting structure which comprises a plurality of vertical keels arranged in one-to-one correspondence with dust collector bags, the top of each vertical keel is attracted through a circular suction cup type electromagnet, and all the circular suction cup type electromagnets are installed on a hoisting frame. The top of the hoisting frame is provided with a battery module for supplying power to the circular suction cup type electromagnets, and hoisting lugs are formed on the two sides of the top of the hoisting frame. According to the utility model, the hoisting of a plurality of keels can be quickly realized through the hoisting structure.
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Description

Technical Field

[0001] This application relates to dust collectors, and more particularly to a keel hoisting structure for a large bag filter dust collector. Background Technology

[0002] Baghouse dust collectors are dry, high-efficiency dust removal devices that capture solid particles from dust-laden gas using fiber filter bags, achieving a dust removal efficiency of up to 99.99%. They are widely used in industrial flue gas purification. Their core working principle includes four stages: dust-laden gas intake, filtration and separation, pulse cleaning, and clean gas emission. When the filter bags reach the end of their lifespan, they need to be replaced, which requires replacing both the filter bags and the bag support frame. After removing the old bags and support frame, the bags are typically installed first, and then the support frame is inserted into the new bags. However, the support frames for large baghouse dust collectors are quite long, generally 5-8 meters, and their weight makes manual replacement difficult. Utility Model Content

[0003] The purpose of this utility model is to provide a large bag filter dust collector keel hoisting structure, which can quickly hoist multiple keels.

[0004] To achieve the above objectives, the present invention provides the following technical solution.

[0005] This application discloses a large bag filter dust collector keel hoisting structure, including multiple vertical keels arranged in a one-to-one correspondence with the dust collector bags. The top of each vertical keel is attracted by a circular suction cup electromagnet. All the circular suction cup electromagnets are installed on the hoisting frame. The top of the hoisting frame is provided with a battery module that supplies power to the circular suction cup electromagnets. Hoisting lugs are formed on both sides of the top of the hoisting frame.

[0006] Preferably, in the above-mentioned large bag filter dust collector keel hoisting structure, a limiting ring is formed on the outside of each of the circular suction cup electromagnets, and the top of the vertical keel is inserted into the limiting ring and then adsorbed onto the circular suction cup electromagnet.

[0007] Preferably, in the above-mentioned large bag filter keel hoisting structure, the hoisting lugs are lifted by a mobile crane.

[0008] Preferably, in the above-mentioned large bag filter keel hoisting structure, the hoisting frame includes a plurality of first horizontal frames arranged along a first horizontal direction, and a plurality of circular suction cup electromagnets are sequentially installed on the first horizontal frames.

[0009] Preferably, in the above-mentioned large bag filter keel hoisting structure, a plurality of second horizontal frames are arranged between the first horizontal frames along the second horizontal direction. The second horizontal frames are used to connect and fix the first horizontal frames, and the first horizontal direction and the second horizontal direction are perpendicular to each other.

[0010] Compared to existing technologies, the advantage of this solution lies in its ability to suspend the structure from the crane hook using a steel wire rope. The keel is then placed within the limiting ring, and the circular suction cup electromagnet is energized, allowing it to hold the keel in place. This magnet can support a weight far exceeding that of the keel. Power is supplied via a battery module to secure the keel. The spacing between the magnets matches the spacing of the dust collector installation equipment. After hoisting into position, the magnets are directly inserted into the holes in the filter bag's tube sheet. Once inserted a certain distance, the electromagnet is de-energized, separating the hoist from the keel. The keel is then simply inserted into the bottom to complete the installation. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 The image shown is a front view of the keel hoisting structure of a large bag filter in an embodiment of this utility model.

[0013] Figure 2 The image shown is a top view of the keel hoisting structure of a large bag filter in an embodiment of this utility model.

[0014] Figure 3 The diagram shown is a hoisting diagram of the keel hoisting structure of a large bag filter in an embodiment of this utility model. Detailed Implementation

[0015] The technical solutions of the present utility model will be described in detail below with reference to the accompanying drawings. 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0016] Combination Figure 1-3As shown, the large bag filter dust collector keel hoisting structure 100 includes multiple vertical keels 101 arranged one-to-one with the dust collector bags (see image). The top of each vertical keel 101 is attracted by a circular suction cup electromagnet 102. All circular suction cup electromagnets 102 are mounted on a hoisting frame 103. A battery module 104 for powering the circular suction cup electromagnets 102 is provided on the top of the hoisting frame 103. Hoisting lugs 105 are formed on both sides of the top of the hoisting frame 103. A limiting ring 106 is formed on the outer side of each circular suction cup electromagnet 102. The top of the vertical keel 101 is engaged with the limiting ring 106 and then attracted to the circular suction cup electromagnet 102. The hoisting lugs 105 are lifted by a mobile crane. The hoisting frame 103 includes multiple first horizontal frames 107 arranged along a first horizontal direction. Multiple circular suction cup electromagnets 102 are sequentially arranged on the first horizontal frames 107. Multiple second horizontal frames 108 are arranged between the first horizontal frames 107 along the second horizontal direction. The second horizontal frames 108 are used to connect and fix the first horizontal frames 107. The first horizontal direction and the second horizontal direction are perpendicular to each other.

[0017] In this embodiment, the structure is suspended from the hook of a crane using a steel wire rope. The vertical keel is placed inside the limiting retaining ring, and the circular suction cup electromagnet is energized, thus attracting the keel. This magnet can support a weight far greater than the weight of the keel. Power is supplied by a battery module to secure the keel. The spacing between the magnets is the same as the spacing of the dust collector installation equipment. After hoisting into place, it is directly inserted into the holes of the filter bag plate. After a certain distance, the electromagnet is de-energized, at which point the hoisting device separates from the keel. The keel is then directly inserted into the bottom to complete the installation. The use of a hoisting structure greatly saves manpower.

[0018] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0019] The above description is only a specific embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A keel hoisting structure for a large bag filter dust collector, characterized in that, It includes multiple vertical keels arranged in a one-to-one correspondence with the dust collector bags. The top of each vertical keel is attracted by a circular suction cup electromagnet. All the circular suction cup electromagnets are installed on a hoisting frame. The top of the hoisting frame is provided with a battery module that powers the circular suction cup electromagnets. Hoisting lugs are formed on both sides of the top of the hoisting frame.

2. The keel hoisting structure for a large bag filter dust collector according to claim 1, characterized in that, Each of the circular suction cup electromagnets has a limiting ring formed on its outer side, and the top of the vertical keel is engaged with the circular suction cup electromagnet after being inserted into the limiting ring.

3. The keel hoisting structure for a large bag filter dust collector according to claim 1, characterized in that, The lifting lugs are used for lifting by a mobile crane.

4. The keel hoisting structure for a large bag filter dust collector according to claim 1, characterized in that, The hoisting frame includes a plurality of first horizontal frames arranged along a first horizontal direction, and a plurality of circular suction cup electromagnets are sequentially arranged and installed on the first horizontal frames.

5. The keel hoisting structure for a large bag filter dust collector according to claim 4, characterized in that, Multiple second horizontal frames are arranged along a second horizontal direction between the first horizontal frames. The second horizontal frames are used to connect and fix the first horizontal frames. The first horizontal direction and the second horizontal direction are perpendicular to each other.