A dust removal filter bag with a spiral guide strip inside
Patent Information
- Application Number
- CN202522627083.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-11
- Publication Date
- 2026-10-09
- Estimated Expiration
- 2035-12-11
AI Technical Summary
[0002]在现有的除尘滤袋应用中,传统的单层除尘滤袋在处理含尘气流时,气流在滤袋内部的流动方向较为单一、紊乱,容易导致粉尘在滤袋局部区域堆积,使得滤袋不同部位的过滤负荷不均匀
本实用新型提出的内部设有螺旋导流条的除尘滤袋,通过在除尘滤袋本体内部设置内置滤袋夹层,并在内置滤袋夹层内固定螺旋导流条,当气流从除尘滤袋本体底部输送进来时,螺旋导流条能够对气流进行螺旋导流。这种螺旋导流方式改变了气流原本单一、紊乱的流动状态,使气流在滤袋内部形成有序的螺旋流动,能够更加均匀地分布在滤袋的各个部位,避免了局部气流速度过快或过慢的情况,从而优化了气流分布。
Smart Images

Figure CN224821976U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of filter bags, specifically a dust removal filter bag with a spiral guide strip inside. Background Technology
[0002] In existing dust collector filter bag applications, traditional single-layer dust collector filter bags exhibit a relatively unidirectional and turbulent airflow direction within the bag when handling dust-laden airflow. This easily leads to dust accumulation in localized areas, resulting in uneven filtration load across different parts of the filter bag. This not only reduces filtration efficiency but also accelerates localized wear and shortens the filter bag's lifespan. Furthermore, due to uneven airflow distribution, some dust may not be effectively intercepted, thus affecting the overall dust collection performance. To improve this situation, a dust collector filter bag structure that optimizes airflow distribution, improves filtration efficiency, and extends service life is needed. Utility Model Content
[0003] The purpose of this invention is to provide a dust collector filter bag with an internal spiral guide strip to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, the present invention provides the following technical solution: a dust collector filter bag with an internal spiral guide strip, comprising a dust collector filter bag body, wherein an internal filter bag interlayer is inserted into the dust collector filter bag body, and a spiral guide strip is fixed inside the internal filter bag interlayer, the spiral guide strip guiding the airflow delivered to the bottom of the dust collector filter bag body.
[0005] Preferably, the dust collector filter bag body is sleeved on the outside of the frame. The frame includes a top ring, uprights, a base, and stirrups. Multiple uprights are provided and fixed between the top ring and the base. Multiple stirrups are provided and sleeved on the frame formed by the multiple uprights.
[0006] Preferably, the built-in filter bag interlayer is a cylindrical cover, inserted into the frame, with the top of the built-in filter bag interlayer turned outward and fixed to the top inner ring surface of the dust collector filter bag body, and the bottom surface of the built-in filter bag interlayer is glued to the base plate of the base by applying adhesive.
[0007] Preferably, the bottom end of the spiral guide strip is fixed to the top surface of the bottom plate of the built-in filter bag interlayer, and the side wall of the spiral guide strip is fixed to the inner wall of the built-in filter bag interlayer.
[0008] Preferably, a connecting cloth strip is fixed to the top end of the spiral guide strip, and the connecting cloth strip is fixed to the top surface of the built-in filter bag interlayer.
[0009] Compared with the prior art, the beneficial effects of this utility model are: This invention proposes a dust collector filter bag with an internal spiral guide strip. By incorporating an internal filter bag interlayer and fixing a spiral guide strip within this interlayer, the airflow is guided in a spiral pattern when it enters from the bottom of the filter bag. This spiral guidance method alters the original monotonous and turbulent flow of the airflow, creating an orderly spiral flow within the filter bag. This allows for a more even distribution throughout the bag, preventing localized excessively fast or slow airflow speeds and thus optimizing airflow distribution. Attached Figure Description Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 for Figure 1 Sectional view of the structure at point AA; Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point B.
[0010] In the diagram: 1. Dust collector filter bag body, 2. Frame top ring, 201. Upright pole, 202. Base, 203. Hoop, 3. Internal filter bag interlayer, 4. Spiral guide strip, 5. Connecting cloth strip. Detailed Implementation
[0011] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0012] Please see Figures 1-3 This utility model provides a technical solution: a dust collector filter bag with an internal spiral guide strip, comprising a dust collector filter bag body 1, which is fitted onto the outside of a frame. The frame includes a top ring 2, uprights 201, a base 202, and stirrups 203. Multiple uprights 201 are provided and fixed between the top ring 2 and the base 202. Multiple stirrups 203 are provided and fitted onto the frame formed by the multiple uprights 201. The dust collector filter bag body 1 is fitted onto the frame, and the top of the dust collector filter bag body 1 is secured to the top ring 2 with wire to prevent it from falling off.
[0013] To achieve airflow guidance with four pairs of spiral guide strips in a double-layer filter bag, the following was proposed: The dust collector filter bag body 1 has an internally inserted filter bag interlayer 3, and a spiral guide strip 4 is fixed inside the internally inserted filter bag interlayer 3. The spiral guide strip 4 guides the airflow delivered to the bottom of the dust collector filter bag body 1. The internally inserted filter bag interlayer 3 is a cylindrical cover, inserted into the frame. The top of the internally inserted filter bag interlayer 3 is turned outward and fixed to the top inner ring surface of the dust collector filter bag body 1. The bottom surface of the internally inserted filter bag interlayer 3 is glued to the bottom plate of the base 202. The bottom end of the spiral guide strip 4 is fixed to the top surface of the bottom plate of the internally inserted filter bag interlayer 3, and the side wall of the spiral guide strip 4 is fixed to the inner wall of the internally inserted filter bag interlayer 3. A connecting cloth strip 5 is fixed to the top of the spiral guide strip 4 and is fixed to the top surface of the internally inserted filter bag interlayer 3.
[0014] After the dust collector filter bag body 1 is fitted onto the frame, the inner filter bag interlayer 3 is inserted into the frame, and the top of the inner filter bag interlayer 3 is turned outward and fixed to the inner ring surface of the dust collector filter bag body 1. At this time, the dust collector filter bag body 1 and the inner filter bag interlayer 3 form a double-layer filter bag structure, and the spiral guide strip 4 is located inside the inner filter bag interlayer 3 to spiral guide the conveyed airflow.
[0015] Instructions for using a dust collector filter bag with an internal spiral guide strip: Prepare a frame, which includes a top ring 2, uprights 201, a base 202, and stirrups 203. Multiple uprights 201 are fixed between the top ring 2 and the base 202. Multiple stirrups 203 are fitted onto the frame formed by the uprights 201. Place the dust collector filter bag body 1 onto the prepared frame, then use tie wire to secure the top of the dust collector filter bag body 1 to the top ring 2 to prevent it from falling off. Insert the internal filter bag interlayer 3 into the frame with the dust collector filter bag body 1 fitted inside. The internal filter bag interlayer 3 is cylindrical. Fold the top of the internal filter bag interlayer 3 outwards and fix it to the inner top ring of the dust collector filter bag body 1. Use adhesive to bond the bottom surface of the internal filter bag interlayer 3 to the base plate of the base 202. The bottom end of the spiral guide strip 4 is fixed to the top surface of the bottom plate of the built-in filter bag interlayer 3, and the side wall of the spiral guide strip 4 is fixed to the inner wall of the built-in filter bag interlayer 3. A connecting strip 5 is fixed to the top of the spiral guide strip 4, and then the connecting strip 5 is fixed to the top surface of the built-in filter bag interlayer 3. After completing the above installation steps, the dust collector filter bag body 1 and the built-in filter bag interlayer 3 form a double-layer filter bag structure. At this time, the spiral guide strip 4 is located inside the built-in filter bag interlayer 3, and can spirally guide the airflow delivered to the bottom of the dust collector filter bag body 1.
[0016] 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 dust collector filter bag with an internal spiral guide strip, comprising a dust collector filter bag body (1), characterized in that: The dust collector filter bag body (1) has an internally inserted filter bag interlayer (3), and a spiral guide strip (4) is fixed inside the internally inserted filter bag interlayer (3). The spiral guide strip (4) guides the airflow delivered to the bottom of the dust collector filter bag body (1).
2. A dust collector filter bag with an internal spiral guide strip as described in claim 1, characterized in that: The dust filter bag body (1) is fitted on the outside of the frame. The frame includes a frame top ring (2), uprights (201), a base (202), and stirrups (203). There are multiple uprights (201), which are fixed between the frame top ring (2) and the base (202). There are multiple stirrups (203), which are fitted on the frame formed by the multiple uprights (201).
3. A dust collector filter bag with an internal spiral guide strip as described in claim 2, characterized in that: The built-in filter bag interlayer (3) is in the shape of a cylindrical cover. The built-in filter bag interlayer (3) is inserted into the frame. The top of the built-in filter bag interlayer (3) is turned outward and fixed to the top inner ring surface of the dust removal filter bag body (1). The bottom surface of the built-in filter bag interlayer (3) is glued to the bottom plate of the base (202) by dotting adhesive.
4. A dust collector filter bag with an internal spiral guide strip as described in claim 1, characterized in that: The bottom end of the spiral guide strip (4) is fixed to the top surface of the bottom plate of the built-in filter bag interlayer (3), and the side wall of the spiral guide strip (4) is fixed to the inner wall of the built-in filter bag interlayer (3).
5. A dust collector filter bag with an internal spiral guide strip as described in claim 1, characterized in that: The top end of the spiral guide strip (4) is fixed with a connecting cloth strip (5), which is fixed to the top surface of the built-in filter bag interlayer (3).