A dust cleaning mechanism for cloth bag dust removal

Abstract

The utility model relates to the field of dust cleaning mechanism for cloth bag dust removal, concretely is a kind of dust cleaning mechanism for cloth bag dust removal, including dust collecting box, the inside of dust collecting box is provided with two bag mouth fixed seat, the bottom of bag mouth fixed seat is provided with segmented dust cleaning mechanism, segmented dust cleaning machine can guide into airflow stably and drive filter bag segmented action by differentiating shape change, clean the filter bag bag body and bag bottom each section attached dust in the inside of dust collecting box, segmented dust cleaning mechanism includes air guide cylinder, the bottom of air guide cylinder is provided with elastic support cylinder, this dust cleaning mechanism for cloth bag dust removal, through the bag mouth fixed seat in dust collecting box fixed filter bag, the air guide cylinder of segmented dust cleaning mechanism gas flow to elastic support cylinder and filter bag, elastic support cylinder shape change drives filter bag to clean dust, elastic support ring protects filter bag, conical flow guide cover converges dust, deflection framework peels bag bottom dust, sealing washer prevents leakage, bolt solid component, solve traditional dust cleaning dust not completely, filter bag is vulnerable to damage problem.

Description

Technical Field

[0001] This utility model relates to the field of dust removal mechanisms for bag filters, specifically a dust removal mechanism for bag filters. Background Technology

[0002] The dust removal mechanism is a core functional component of baghouse dust collectors. It primarily removes the dust layer adhering to the surface of the filter bags to restore their air permeability and ensure the continuous and efficient operation of the dust collection system. This mechanism is widely used in industries that generate industrial dust, such as steel, cement, metallurgy, chemical, and power generation, and is compatible with various dust removal processes such as pulse jet cleaning, mechanical vibration, and reverse air blowing. When dust-laden gas passes through the filter bags, the dust is trapped on the outer surface. As the dust accumulates, the filtration resistance gradually increases. The dust removal mechanism uses a specific force to peel off the dust and cause it to fall into the dust hopper, thereby maintaining the stable filtration efficiency and air volume of the dust collector.

[0003] A search revealed Chinese patent publication (CN221333221U), which includes a dust collector body. A mounting plate is fixedly connected to the dust collector body, and a filter bag is fixedly connected to the lower end of the mounting plate. The invention is characterized by symmetrically arranged push rod motors within the dust collector body. A support frame is fixedly connected to the push rod of the push rod motor, and a support plate is fixedly connected to the support frame. A cleaning component is provided on the support plate. This invention features a cleaning cylinder moved up and down by the push rod motor to clean the outer surface of the filter bag. The rotation of the cleaning cylinder by the drive motor causes the brush to rotate and brush off the dust adsorbed on the outer surface of the filter bag, preventing damage to the filter bag. The brush directly contacts the dust on the outer surface of the filter bag, resulting in excellent cleaning performance.

[0004] When the above-mentioned patent is used, the brush of the cleaning component is prone to wear due to long-term friction with the filter bag, which leads to the decrease of the dust removal effect over time. In addition, the fiber debris generated by the wear of the brush may mix with the dust and cause secondary pollution. Therefore, we propose a dust removal mechanism for bag dust collectors. Utility Model Content

[0005] One of the technical problems this application aims to solve is that traditional dust removal methods are difficult to effectively clean dust accumulation in different parts of the filter bag, and the filter bag is prone to damage due to uneven stress.

[0006] To solve the above-mentioned technical problems, this application provides a dust removal mechanism for bag filters, including a dust collection box. The dust collection box has two bag opening fixing seats inside. The bottom of the bag opening fixing seats is provided with a segmented dust removal mechanism. The segmented dust removal mechanism can stably introduce airflow and drive the filter bag to move in segments through differentiated deformation to clean the dust attached to each segment of the filter bag body and bottom inside the dust collection box.

[0007] In some embodiments, the segmented dust removal mechanism includes an air guide cylinder, the bottom of which is provided with an elastic support cylinder, and the bottom of which is provided with a conical guide shroud.

[0008] In some embodiments, a plurality of connecting rods are provided between the conical air guide and the elastic support cylinder, and a plurality of bolts are threaded to the outside of the air guide cylinder, the bolts being threaded to the inside of the elastic support cylinder.

[0009] In some embodiments, an elastic support ring is provided inside the elastic support cylinder, a deflection frame is provided at the bottom of the conical guide shield, and a sealing gasket is provided outside the deflection frame.

[0010] In some embodiments, a flow guiding mechanism is provided at the bottom of the conical flow guide shroud, which is used to guide the dust inside the conical flow guide shroud and prevent backflow.

[0011] In some embodiments, the flow guiding mechanism includes a dust collection hood, a one-way valve is provided at the bottom of the dust collection hood, a flow guiding pipe is provided at the bottom of the one-way valve, and a deflection connecting rod is provided between the one-way valve and the sealing gasket.

[0012] In some embodiments, a dust collection hopper is provided at the bottom of the dust collection box, and a dust collection drawer is slidably connected inside the dust collection hopper, with a handle provided on the outside of the dust collection drawer.

[0013] This utility model has at least the following beneficial effects: 1. In this utility model, the filter bag is fixed by the bag opening fixing seat inside the dust collection box. The air guide tube in the segmented dust removal mechanism receives the externally sprayed dust removal airflow and directionally transports it to the elastic support tube and the inside of the filter bag. The elastic support tube is sleeved inside the filter bag and drives the filter bag to move synchronously through its own elastic deformation to shake off the dust accumulated on the bag body. The elastic support rings inside are distributed at intervals along the inner wall to enhance the radial support strength and prevent the filter bag from being excessively stretched or wrinkled. The conical guide hood at the bottom of the elastic support tube initially removes the dust falling from the bottom of the filter bag. The airflow is collected and connected to the elastic support cylinder via a connecting rod to synchronously transmit deformation. The deflection skeleton at the bottom of the conical guide hood fits against the inner side of the bottom of the filter bag. Under the impact of the airflow, it deflects at a small angle to peel off the stubborn dust accumulated at the bottom of the bag. The sealing gasket on the outside of the deflection skeleton prevents dust from entering its movement gap and prevents dust leakage. The air guide cylinder and the elastic support cylinder are tightly fixed with bolts to avoid airflow leakage. This solves the problems of incomplete cleaning of dust accumulation in different parts of the filter bag and easy damage to the filter bag due to uneven force in traditional dust removal methods.

[0014] 2. In this utility model, the dust is assisted in being discharged by the flow guiding mechanism at the bottom of the conical flow guide hood. The dust collection hood is installed below the bottom of the filter bag to collect the dust shaken off from the filter bag. The one-way valve at the bottom of the dust collection hood opens under the action of gravity of the dust, allowing the dust to enter the dust collection hopper at the bottom of the dust collection box through the flow guide pipe. When the airflow reverses, the one-way valve closes to prevent dust backflow. The deflection connecting rod connects the one-way valve and the sealing gasket, and the deflection action of the deflection frame causes the one-way valve to vibrate slightly to ensure smooth flow. The dust collection hopper collects the dust into the dust collection drawer that is slidably connected inside. The dust can be cleaned by pulling out the dust collection drawer with the handle, thereby solving the problems of secondary pollution caused by dust scattering and dust backflow adhering to the filter bag, which affects the dust removal efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall internal structure of this utility model; Figure 3 This is a schematic diagram of the pocket fixing base of this utility model; Figure 4 This is a cross-sectional view of the elastic support cylinder of this utility model; Figure 5 This is a schematic diagram of the structure of the dust collection hood of this utility model.

[0016] In the diagram: 1. Dust collection box; 2. Dust collection hopper; 3. Dust collection drawer; 4. Handle; 5. Air guide tube; 6. Elastic support tube; 7. Conical guide hood; 8. Dust collection hood; 9. Bolt; 10. Connecting rod; 11. Sealing gasket; 12. Deflection frame; 13. Elastic support ring; 14. Deflection connecting rod; 15. One-way valve; 16. Guide tube; 17. Bag mouth fixing seat. 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] Example 1: Please refer to Figure 1 - Figure 4This utility model provides a technical solution: a dust removal mechanism for bag filters, including a dust collection box 1. The dust collection box 1 serves as the core housing space of the overall dust removal device, providing an installation and working environment for the internal filter bags and components of the segmented dust removal mechanism. Simultaneously, it isolates the external space to prevent dust from overflowing during dust removal. Two bag opening fixing seats 17 are provided inside the dust collection box 1. The bag opening fixing seats 17 are used to precisely fix the bag opening ends of the filter bags, ensuring that the filter bags maintain a stable suspended state during operation and preventing displacement of the filter bags due to airflow impact or dust removal actions. A segmented dust removal mechanism is provided at the bottom of the bag opening fixing seats 17. The segmented dust removal mechanism can stably introduce airflow and drive the filter bags through differentiated deformation. The segmented cleaning mechanism cleans the dust accumulated on the body and bottom of the filter bags inside the dust collection box 1. The segmented cleaning mechanism includes an air guide cylinder 5, which receives the cleaning airflow from the external jet and directs the airflow to the elastic support cylinder 6 and the inside of the filter bags. The bottom of the air guide cylinder 5 is equipped with an elastic support cylinder 6, which is fitted inside the filter bags to prevent the filter bags from collapsing and clogging when there is no airflow. The elastic support cylinder 6 drives the filter bags to move synchronously through its own elastic deformation, helping to shake off the dust accumulated on the bag body. The bottom of the elastic support cylinder 6 is equipped with a conical guide hood 7, which can initially collect the dust falling from the bottom of the filter bags and guide the airflow to form a reasonable flow direction at the bottom of the filter bags to avoid dust accumulation at the bottom of the filter bags.

[0019] Example 2: Multiple connecting rods 10 are provided between the conical guide shroud 7 and the elastic support cylinder 6. The connecting rods 10 are evenly distributed at the connection between the conical guide shroud 7 and the elastic support cylinder 6, ensuring that the deformation of the elastic support cylinder 6 can be synchronously transmitted to the conical guide shroud 7. Multiple bolts 9 are threadedly connected to the external of the air guide cylinder 5. The bolts 9 tightly fix the air guide cylinder 5 and the elastic support cylinder 6 through threaded engagement, preventing airflow leakage at the connection gap and ensuring that the airflow can fully act on the filter bag for dust removal. The bolts 9 are threadedly connected to the inside of the elastic support cylinder 6. An elastic support ring 13 is provided inside the elastic support cylinder 6. The elastic support ring 13 runs along the elastic support cylinder 6. The inner wall is spaced apart to enhance the radial support strength of the elastic support cylinder 6 and expand and contract synchronously with the deformation of the elastic support cylinder 6, avoiding excessive local stretching or wrinkling of the filter bag. The bottom of the conical guide hood 7 is provided with a deflection frame 12, which is attached to the inner side of the bottom of the filter bag. It can be deflected at a small angle under the impact of airflow or external action, causing the bottom of the filter bag to swing and peel off stubborn dust from the bottom of the bag. The outside of the deflection frame 12 is provided with a sealing gasket 11, which is attached to the connection between the deflection frame 12 and the conical guide hood 7 to prevent dust from entering the deflection frame 12 and ensure smooth deflection, while preventing dust from leaking from the connection gap.

[0020] Example 3: Please refer to Figure 2 - Figure 5This utility model provides a technical solution: a guiding mechanism is provided at the bottom of the conical guide hood 7. The guiding mechanism is used to guide the dust inside the conical guide hood 7 and prevent backflow, avoiding the dust after cleaning from re-adhering to the surface of the filter bag, and ensuring that the dust can be discharged in a directional manner. The guiding mechanism includes a dust collection hood 8, which is installed under the bottom of the filter bag. It can collect all the dust that is shaken off and peeled off from the filter bag into its own interior, preventing the dust from falling into other areas of the dust collection box 1 and causing secondary pollution. A one-way valve 15 is installed at the bottom of the dust collection hood 8. The one-way valve 15 can be automatically opened under the action of gravity of the dust, and the dust in the dust collection hood 8 falls downward into the guide pipe 16. When the airflow reverses, it automatically closes to prevent the dust in the dust collection hopper 2 from flowing back into the dust collection hood 8 and the filter bag area due to airflow disturbance. The guide pipe 16 is installed at the bottom of the one-way valve 15. One end of the guide pipe 16 is connected to the one-way valve 15, and the other end extends into the dust collection hopper 2, which can accurately guide the dust discharged by the one-way valve 15 to the dust collection hopper 2. In the dust collection hopper 2, to prevent dust residue during the conveying process, a deflection connecting rod 14 is provided between the one-way valve 15 and the sealing gasket 11. The deflection connecting rod 14 connects the one-way valve 15 and the sealing gasket 11, so that the deflection action of the deflection frame 12 can synchronously drive the one-way valve 15 to vibrate slightly, assisting the dust adhering to the one-way valve 15 to fall off and ensuring that the one-way valve 15 is unobstructed. At the bottom of the dust collection box 1, there is also a dust collection hopper 2, which is funnel-shaped and used to receive the dust conveyed from the guide pipe 16. All dust is collected in the dust collection hopper 2 and then slidably connected to the dust collection drawer 3 at the bottom. The dust collection drawer 3 can hold the dust collected in the dust collection hopper 2. When the dust accumulates to a certain amount, it can be removed by sliding to clean it, thus achieving centralized collection and treatment of dust. The dust collection drawer 3 is equipped with a handle 4 on the outside, which provides a force point for the operator to quickly pull out the dust collection drawer 3, improving the convenience of dust cleaning and reducing operation time.

[0021] Based on the above embodiments, the following is the complete working principle of the above embodiments: The filter bag is fixed by the bag opening fixing seat 17 inside the dust collection box 1. During operation, the air guide cylinder 5 in the segmented dust removal mechanism receives the externally sprayed dust removal airflow and directionally transports it to the elastic support cylinder 6 and the inside of the filter bag. The elastic support cylinder 6 is sleeved on the inside of the filter bag. Through its own elastic deformation, it drives the filter bag to move synchronously to shake off the dust accumulated on the bag body. The elastic support rings 13 inside are distributed at intervals along the inner wall to enhance the radial support strength and prevent the filter bag from being overstretched or wrinkled. The conical guide hood 7 at the bottom of the elastic support cylinder 6 initially collects the dust falling from the bottom of the filter bag and is connected to the elastic support cylinder 6 through the connecting rod 10 to synchronously transmit the deformation action. The deflection skeleton 12 at the bottom of the conical guide hood 7 fits against the inner side of the bottom of the filter bag and deflects at a small angle under the impact of the airflow to peel off the stubborn dust accumulated at the bottom of the bag. The sealing gasket 11 on the outside of the deflection frame 12 prevents dust from entering its movement gap and prevents dust leakage. The air guide tube 5 and the elastic support tube 6 are tightly fixed by bolts 9 to avoid airflow leakage. At the same time, the guide mechanism at the bottom of the conical guide hood 7 assists in the discharge of dust. The dust collection hood 8 is placed under the bottom of the filter bag to collect the dust shaken off from the filter bag. The one-way valve 15 at the bottom of the dust collection hood 8 opens under the action of dust gravity, allowing the dust to enter the dust collection hopper 2 at the bottom of the dust collection box 1 through the guide pipe 16. When the airflow is reversed, the one-way valve 15 closes to prevent dust backflow. The deflection connecting rod 14 connects the one-way valve 15 and the sealing gasket 11, so that the deflection action of the deflection frame 12 causes the one-way valve 15 to vibrate slightly to ensure smooth flow. The dust collection hopper 2 collects the dust into the internally sliding dust collection drawer 3. The operator can complete the dust cleaning by pulling the dust collection drawer 3 with the handle 4.

[0022] 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 process, method, article, or apparatus.

[0023] 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.

Claims

1. A dust removal mechanism for baghouse dust collectors, comprising a dust collection box (1), characterized in that: The dust collection box (1) is equipped with two bag mouth fixing seats (17) inside. The bottom of the bag mouth fixing seat (17) is equipped with a segmented dust cleaning mechanism. The segmented dust cleaning machine can stably introduce airflow and drive the filter bag to move in segments through differentiated deformation to clean the dust adhering to each segment of the filter bag body and bottom inside the dust collection box (1).

2. The dust removal mechanism for baghouse dust collectors according to claim 1, characterized in that: The segmented dust removal mechanism includes an air guide cylinder (5), an elastic support cylinder (6) is provided at the bottom of the air guide cylinder (5), and a conical guide shroud (7) is provided at the bottom of the elastic support cylinder (6).

3. The dust removal mechanism for baghouse dust collectors according to claim 2, characterized in that: Multiple connecting rods (10) are provided between the conical air guide (7) and the elastic support cylinder (6). Multiple bolts (9) are threadedly connected to the outside of the air guide cylinder (5), and the bolts (9) are threadedly connected to the inside of the elastic support cylinder (6).

4. The dust removal mechanism for baghouse dust collectors according to claim 3, characterized in that: The elastic support cylinder (6) is provided with an elastic support ring (13) inside, the bottom of the conical guide shield (7) is provided with a deflection frame (12), and the deflection frame (12) is provided with a sealing gasket (11) outside.

5. The dust removal mechanism for baghouse dust collectors according to claim 2, characterized in that: The bottom of the conical guide shroud (7) is provided with a flow guiding mechanism, which is used to guide the dust inside the conical guide shroud (7) and prevent backflow.

6. The dust removal mechanism for baghouse dust collectors according to claim 4, characterized in that: The flow guiding mechanism includes a dust collection hood (8), a one-way valve (15) is provided at the bottom of the dust collection hood (8), a flow guiding pipe (16) is provided at the bottom of the one-way valve (15), and a deflection connecting rod (14) is provided between the one-way valve (15) and the sealing gasket (11).

7. The dust removal mechanism for baghouse dust collectors according to claim 1, characterized in that: The bottom of the dust collection box (1) is provided with a dust collection hopper (2), and the dust collection hopper (2) is slidably connected to a dust collection drawer (3). The outside of the dust collection drawer (3) is provided with a handle (4).

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