Small-sized multi-stage cloth bag dust removal device
By designing a small multi-stage bag dust removal device, three-stage filtration is achieved using bags in four dust removal cavities, which solves the problem of poor filtration effect in a small space and achieves efficient filtration and convenient cleaning.
Patent Information
- Application Number
- CN202422672632.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-04
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-11-04
AI Technical Summary
The existing pre-filter device of the dust collector is difficult to achieve multiple filtration in a small space, and the filtering effect is poor.
A small multi-stage bag dust removal device is designed, which achieves three-stage filtration through bags in four dust removal cavities, namely the first cavity, the second cavity, the third cavity and the fourth cavity. The air is filtered through the bags in each cavity in turn. The bags are connected by openings and through holes to increase the filtration path.
Three filtrations are achieved in a small space, which improves the filtration efficiency and effect. The bags can be cleaned quickly and occupy a small area.
Smart Images

Figure CN223366479U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of dust removal devices, in particular to a small multi-stage bag dust removal device. Background Art
[0002] The pre-filter unit is a device located at the forefront of the dust removal system. Its primary function is to remove large particles, lint, and dust from the exhaust gas to protect subsequent dust removal equipment. Existing pre-filter units struggle to achieve multiple filtration steps within a small space, resulting in poor filtering effectiveness. Utility Model Content
[0003] In order to overcome the above-mentioned deficiencies of the existing problems, the utility model provides a small multi-stage bag dust removal device.
[0004] The technical solution adopted by the utility model to solve its technical problems is: a small multi-stage bag dust removal device, including an outer shell, vertical partitions and transverse partitions are fixedly connected to the outer shell, the vertical partitions and transverse partitions divide the interior of the outer shell into four dust removal cavities, dust removal bags are provided in the dust removal cavities, the upper and lower ends of the dust removal bags are fixedly connected to the outer shell and the transverse partitions by clamps, the dust removal cavities are, from left to right and from top to bottom, the first cavity, the second cavity, the third cavity and the fourth cavity, wherein the dust removal bags between the second cavity and the fourth cavity are interconnected, the dust removal bags between the first cavity and the third cavity are interconnected, a through hole is provided on the vertical partition between the third cavity and the fourth cavity, the second cavity and the third cavity are connected An air inlet is provided at the top of the cavity, and an air outlet is provided on one side of the first cavity. When in use, the air entering from the air inlet first passes through the dust bag in the second cavity and the fourth cavity to complete the first filtration, leaving most of the impurities in the air at the bottom of the dust bag in the fourth cavity. Then, the air after the first filtration enters the dust bag in the third cavity through the through port, and the impurities will be blocked on the outer surface of the dust bag in the third cavity, completing the secondary filtration. The air after the secondary filtration will move upward to the dust bag in the first cavity, and pass through the dust bag in the first cavity to block the impurities in the air on the inner wall of the first cavity, completing the third filtration. The air after the three filtrations is discharged outward through the air outlet.
[0005] Preferably, a plurality of through holes are provided on the transverse partition between the second cavity and the fourth cavity, so that the air entering from the air inlet can complete the first filtration through the dust removal bag in the second cavity and enter the fourth cavity, or complete the first filtration through the dust removal bag in the fourth cavity, thereby effectively improving the air intake efficiency.
[0006] Preferably, the bottom of the dust bag in the fourth cavity is tightened by a tightening member, which includes a cable tie, an elastic rope, etc., and the impurities accumulated in the dust bag in the fourth cavity can be easily cleaned by opening the tightening member.
[0007] Preferably, an inspection door is provided at a position on the outer shell corresponding to the dust removal cavity, so as to facilitate the inspection of the interior of the dust removal device and the cleaning of impurities accumulated in the dust removal bag in the fourth cavity.
[0008] The beneficial effect of the utility model is that three filtration operations are achieved in a small space through the dust-proof bags in the four dust-proof cavities, and the utility model has the advantages of small footprint, high filtration efficiency and strong filtration effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0010] Figure 1 It is a schematic diagram of the internal structure of the utility model;
[0011] Figure 2 It is a top view of the transverse partition of the utility model;
[0012] In the figure, 1. outer shell; 2. vertical partition; 3. horizontal partition; 4. first cavity; 5. second cavity; 6. third cavity; 7. fourth cavity; 8. air inlet; 9. air outlet; 10. clamp; 11. dust bag; 12. through opening; 13. through hole; 14. tightening piece. DETAILED DESCRIPTION
[0013] All features disclosed in this specification, or all steps in the disclosed methods or processes, except mutually exclusive features and / or steps, can be combined in any manner.
[0014] Any feature disclosed in this specification (including any appended claims, abstract, and drawings), unless otherwise stated, may be replaced by other equivalent or similar features. In other words, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.
[0015] like Figure 1-2A small multi-stage bag dust removal device is shown, including an outer shell 1, to which vertical partitions 2 and transverse partitions 3 are fixedly connected. The vertical partitions 2 and transverse partitions 3 divide the interior of the outer shell 1 into four dust removal cavities, and dust removal bags 11 are provided in the dust removal cavities. The upper and lower ends of the dust removal bags 11 are fixedly connected to the outer shell 1 and the transverse partitions 3 by clamps 10. The dust removal cavities are, in order from left to right and from top to bottom, the first cavity 4, the second cavity 5, the third cavity 6 and the fourth cavity 7, wherein the dust removal bags 11 between the second cavity 5 and the fourth cavity 7 are interconnected, and the dust removal bags 11 between the first cavity 4 and the third cavity 6 are interconnected. A through opening 12 is provided on the vertical partition 2 between the third cavity 6 and the fourth cavity 7, and a through opening 12 is provided on the top of the second cavity 5. The air inlet 8 and the air outlet 9 are provided on one side of the first cavity 4. When in use, the air entering the air inlet first passes through the dust bag 11 in the second cavity 5 and the fourth cavity 7 to complete the first filtration, leaving most of the impurities in the air at the bottom of the dust bag 11 in the fourth cavity 7. Then, the air after the first filtration enters the dust bag 11 in the third cavity 6 through the through hole 12. The impurities will be blocked on the outer surface of the dust bag 11 in the third cavity 6, completing the secondary filtration. The air after the secondary filtration will move upward to the dust bag 11 in the first cavity 4, and pass through the dust bag 11 in the first cavity 4 to block the impurities in the air on the inner wall of the first cavity 4, completing the third filtration. The air after the three filtrations is discharged outward through the air outlet 9.
[0016] A plurality of through holes 13 are provided on the transverse partition 3 between the second cavity 5 and the fourth cavity 7, so that the air entering from the air inlet 8 can complete the first filtration through the dust removal bag 11 in the second cavity 5 and enter the fourth cavity, and can also complete the first filtration through the dust removal bag 11 in the fourth cavity 7, thereby effectively improving the air intake efficiency.
[0017] The bottom of the dust bag 11 in the fourth cavity 7 is tightened by a tightening piece 14, and the tightening piece 14 includes a cable tie, an elastic rope, etc. By opening the tightening piece 14, impurities accumulated in the dust bag 11 in the fourth cavity 7 can be easily cleaned.
[0018] Inspection doors are provided at positions on the outer shell 1 corresponding to the dust removal cavities, which facilitate inspection of the interior of the dust removal device and cleaning of impurities accumulated in the dust removal bag 11 in the fourth cavity 7. Specific embodiments
[0019] The air that has completed the first filtration through the second cavity 5 will enter the fourth cavity 7 through the through hole 13, and then the air that has completed the first filtration through the dust bag 11 in the third cavity 6 will enter the dust bag 11 in the third cavity 6 through the through hole 12, and the impurities will be blocked on the outer surface of the dust bag 11 in the third cavity 6, completing the secondary filtration. The air that has completed the secondary filtration will move upward to the dust bag 11 in the first cavity 4, and pass through the dust bag 11 in the first cavity 4 to block the impurities in the air on the inner wall of the first cavity 4, completing the third filtration. The air that has completed the three filtrations is discharged outward through the air outlet 9. When the impurities in the dust bag 11 in the fourth cavity 7 accumulate to a certain extent, open the inspection door and loosen the tightening piece 12 so that the impurities can be discharged through the bottom of the dust bag 11, which is convenient for cleaning.
[0020] This design is ingenious. It realizes three-time filtration in a small space through the dust bags in the four dust-proof cavities. It has the advantages of small footprint, high filtration efficiency and strong filtration effect. In addition, the dust bags in the fourth cavity can be quickly cleaned through the inspection door and tightening parts, which is easy to use.
[0021] The present invention is not limited to the aforementioned specific embodiments, but extends to any new features or any new combination disclosed in this specification, as well as any new method or process steps or any new combination disclosed.
Claims
1. A small multi-stage bag dust removal device, characterized by: The utility model comprises an outer shell (1), wherein a vertical partition (2) and a horizontal partition (3) are fixedly connected to the outer shell (1), wherein the vertical partition (2) and the horizontal partition (3) are vertically arranged, and the vertical partition (2) and the horizontal partition (3) divide the interior of the outer shell (1) into four dust removal cavities, wherein dust removal bags (11) are provided in each dust removal cavity, and the upper and lower ends of the dust removal bags (11) are fixedly connected to the outer shell (1) and the horizontal partition (3) through clamps (10), and the dust removal cavities are sequentially from left to right and from top to bottom as follows: the first cavity ( 4), a second cavity (5), a third cavity (6) and a fourth cavity (7), wherein the dust removal bags (11) between the second cavity (5) and the fourth cavity (7) are interconnected, the dust removal bags (11) between the first cavity (4) and the third cavity (6) are interconnected, a through opening (12) is provided on the vertical partition (2) between the third cavity (6) and the fourth cavity (7), an air inlet (8) is provided on the top of the second cavity (5), and an air outlet (9) is provided on one side of the first cavity (4).
2. A small multi-stage bag dust removal device according to claim 1, characterized in that: A plurality of through holes (13) are provided on the transverse partition (3) between the second cavity (5) and the fourth cavity (7).
3. The small multi-stage bag dust removal device according to claim 1, characterized in that: The bottom of the dust removal bag (11) in the fourth cavity (7) is tightened by a tightening member (14).
4. The small multi-stage bag dust removal device according to claim 1, characterized in that: Inspection doors are provided at positions on the outer shell (1) corresponding to the dust removal cavity.