Equipment and method for removing and collecting atmospheric dust in textile industry

By designing a textile industry atmospheric dust removal equipment including dust removal shell, air intake chamber, air outlet chamber, rotary mount, filter parts and flow guides, the existing equipment has solved the problems of dust treatment effect and maintenance difficulty, and achieved more efficient dust removal and more convenient maintenance.

CN119971663AActive Publication Date: 2025-05-13NANTONG XINTIAN TEXTILE & GARMENT CO LTD
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Patent Information

Application Number
CN202510474558.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-16
Publication Date
2025-05-13
Estimated Expiration
2045-04-16

AI Technical Summary

Technical Problem

The dust removal equipment used in existing textile machines is not effective in handling dust, and the maintenance and replacement of equipment is more troublesome, especially for textile dust with adhesion.

Method used

A textile industry atmospheric dust collection equipment is designed, including dust collection shell, air intake chamber, air outlet chamber, rotary mount, filter and flow guide. The equipment achieves more efficient dust filtration and more convenient equipment maintenance by adjusting the opening area of ​​the air intake chamber and utilizing a combined structure of a rotating mount and a flow guide.

Benefits of technology

The dust removal effect of this equipment is more significant, which can effectively prevent dust from sticking, and is easier to replace the filter parts, improving the maintenance efficiency and safety of the equipment.

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Abstract

The invention relates to the field of spinning, in particular to atmospheric dust removing and collecting equipment and method for the spinning industry. Comprising a dust removing and collecting shell, an inlet adjusting assembly, a rotary mounting base, a plurality of filtering pieces and a flow guiding piece. An air inlet cavity and an air outlet cavity are formed in the dust removal and collection shell, the two ends of the air outlet cavity are perpendicularly arranged, one end communicates with one side of the air inlet cavity, and the other end faces the side away from the air inlet cavity. The inlet adjusting assembly is installed in the air inlet cavity and used for adjusting the opening area of the air inlet cavity. The rotary mounting base is mounted at the vertical joint of the two ends of the air outlet cavity, one side of the rotary mounting base is located in the air outlet cavity, the other side of the rotary mounting base is located outside the air outlet cavity, and a plurality of third mounting cavities are formed in the rotary mounting base in an annular array; the multiple filtering pieces are installed in the multiple third installation cavities correspondingly, and the two ends, in the radius direction of the rotary installation base, of the filtering pieces are used for feeding or discharging dust correspondingly. The flow guide piece is rotationally installed in the center of the rotary installation base.
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Description

Technical Field

[0001] The invention relates to the field of textiles, and in particular to a device and method for collecting atmospheric dust in the textile industry. Background Art

[0002] Textile production produces flax dust, cotton dust (a general term for cotton fiber dust and soil dust) and wool dust. This dust can enter the human respiratory system and settle on the human skin or conjunctiva, endangering human health. In addition, this dust also brings harm, pollutes the production medium, and ultimately leads to deterioration of working conditions, such as accelerated wear of machinery and causing operating disorders, and even fire and explosion accidents.

[0003] However, the dust collection equipment used in existing textile machines still has some technical problems, including poor dust treatment effect of the dust collection equipment and the subsequent replacement and maintenance of the equipment's own dust collection related units is relatively troublesome. Summary of the invention

[0004] Based on this, it is necessary to provide a textile industry atmospheric dust collection equipment and method to address the above technical problems, which has a better dust collection effect, and relative to the sticky textile dust, the structure is easier to replace and can effectively prevent dust adhesion.

[0005] The present invention provides a textile industry atmospheric dust collection device, comprising: The dust collecting shell has an air inlet cavity and an air outlet cavity arranged inside, and the two ends of the air outlet cavity are arranged vertically, one end of which is connected to one side of the air inlet cavity, and the other end faces a side away from the air inlet cavity; An inlet adjustment component, installed in the air inlet cavity, and used to adjust the opening area of ​​the air inlet cavity; A rotating mounting seat is mounted at the vertical connection between the two ends of the air outlet cavity, one side of the rotating mounting seat is located inside the air outlet cavity, and the other side is located outside the air outlet cavity, and a plurality of third mounting cavities are arranged on the rotating mounting seat in a circular array; A plurality of filter elements are respectively installed in the plurality of the third installation cavities, and the two ends of the filter elements along the radial direction of the rotating installation seat are respectively used for the entry or discharge of dust; The flow guide is rotatably mounted at the center of the rotating mounting seat and is used to adjust the filter element through which the dust flows.

[0006] In one embodiment, two opposite sides of the air inlet cavity are provided with a plurality of long holes and a second mounting hole spaced apart in a horizontal direction; the long holes are longitudinally arranged and located above the second mounting holes, and two folding plates are arranged at the bottom end of the air inlet cavity, one end of the folding plate is horizontally arranged and connects the two opposite sides of the air inlet cavity, and the other ends of the two folding plates are opposite and bent downward to form an opening smaller than the horizontal interface of the air inlet cavity.

[0007] In one embodiment, the inlet adjustment assembly includes a first plug rod, a first baffle, a second plug rod, a support rod and a grip rod; the two ends of the first plug rod are respectively inserted into the two second mounting holes, the two first baffles are respectively arranged on both sides of the first plug rod, and form an angle with the opening upward, the two ends of the second plug rod are respectively inserted into the two long holes, and a plurality of support rods are arranged on both horizontal sides of the second plug rod, one end of the support rod abuts against the first baffle, and the grip rod is located at the end of the second plug rod located outside the air inlet cavity.

[0008] In one embodiment, the first baffle is away from the first plug rod and is provided with a second baffle on one side opposite to the first plug rod. The second baffle is vertically arranged to the first baffle, and an angle with an opening facing downward is formed between the two second baffles.

[0009] In one embodiment, a first installation cavity is opened at the vertical connection of the air outlet cavity, the first installation cavity partially passes through the dust collection shell, a first installation hole is opened at the central axis of the first installation cavity, and a cover plate is provided at the first installation cavity, both ends of the cover plate are fixed on the dust collection shell, and the inner surface of the cover plate is a curved surface structure, and a complete cylindrical cavity is formed between the cover plate and the first installation cavity in the dust collection shell.

[0010] In one embodiment, the rotating mounting seat includes a fixing ring, a first arc-shaped plate, a partition and a second arc-shaped plate; the plurality of partitions are arranged in a circular array, the two fixing rings are respectively connected to the two ends of the plurality of partitions, the first arc-shaped plate is arranged at one opposite end of the plurality of partitions, and the second arc-shaped plate is arranged at the other end, a second mounting cavity is formed between the plurality of the first arc-shaped plates, and a third mounting cavity is formed between two adjacent partitions.

[0011] In one embodiment, the filter element is inserted into the third installation cavity along the central axis direction of the second installation cavity, and there is a gap between two adjacent second arc plates and between two adjacent first arc plates.

[0012] In one embodiment, the filter element includes a filter block and a stopper, wherein the stopper is located at two ends of the filter block and is used to close the two ends of the filter block.

[0013] In one embodiment, the guide member is inserted into the second installation cavity, a through opening is opened on the surface of the guide member, and two ends of the through opening are respectively oriented toward the interval formed by two adjacent first arc-shaped plates.

[0014] The present invention also provides a method for using a textile industry atmospheric dust collection device, which is applied to the textile industry atmospheric dust collection device described in any one of the above embodiments, and the method comprises: The air inlet cavity is arranged just above the textile machine, and the inlet adjustment component is adjusted to change the opening area of ​​the air inlet cavity; The pneumatic device is started to evacuate the air outlet cavity, so that the dust at the air inlet cavity is sucked into the rotating mounting seat, and the filter element in the rotating mounting seat will filter the dust; When the filtering effect of the current filter element becomes worse, the guide element is rotated to adjust the filter element through which the dust passes, and the filter element with the worse filtering effect is removed and replaced.

[0015] The above-mentioned atmospheric dust collection equipment and method for the textile industry, when in use, moves the dust collection housing to above the textile machine, and makes the air inlet chamber be located directly above the textile machine. At this time, the inlet adjustment component is adjusted as needed to change the opening area of ​​the air inlet chamber to adapt to the entry of dust of different sizes. Then the pneumatic device is started, and the air outlet chamber is evacuated. At this time, the air inlet chamber will adsorb the dust generated when the textile machine is running, and make the dust enter the air inlet chamber and the air outlet chamber in turn. Since the two ends of the air outlet chamber are vertically arranged, and one end of the air outlet chamber is connected to one side of the air inlet chamber, the dust sucked into the air outlet chamber will no longer flow back to the air inlet chamber. Then the dust will flow through two filter elements and the guide element in turn. During this process, the filter element will be blocked by the component. At this time, the guide element can be rotated to adjust the dust flow path, and the filter element can also be removed and replaced. This structure has a better dust collection effect, and relative to the sticky textile dust, this structure is easier to replace and can effectively prevent dust adhesion. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 A schematic diagram of the three-dimensional structure of the textile dust collection device provided by the present invention; Figure 2 A schematic cross-sectional structure diagram of the textile dust collection device provided by the present invention; Figure 3 A schematic diagram of the structure of the dust collection housing provided by the present invention; Figure 4 A schematic diagram of the three-dimensional structure of the inlet regulating assembly provided by the present invention; Figure 5 A schematic diagram of the planar structure of the inlet regulating assembly provided by the present invention; Figure 6 A schematic diagram of the structure of the rotary mounting base provided by the present invention; Figure 7 A schematic diagram of the structure of the filter element provided by the present invention; Figure 8 This is a schematic structural diagram of the flow guide provided by the present invention.

[0018] Reference numerals: 100, dust collection housing; 110, air inlet cavity; 120, air outlet cavity; 130, first installation cavity; 140, first installation hole; 150, long hole; 160, second installation hole; 170, folding plate; 180, cover plate; 200, inlet adjustment assembly; 210, first plug rod; 220, first baffle plate; 230, second baffle plate; 240, second plug rod; 250, support rod; 260, grip rod; 300, swivel mounting seat; 310, fixing ring; 320, first arc plate; 330, partition plate; 340, second arc plate; 350, second installation cavity; 360, third installation cavity; 400, filter element; 410, filter block; 420, baffle block; 500, guide element; 510, through-opening. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] Combine the following Figures 1 to 8 The invention describes a textile industry atmospheric dust collection device and method thereof.

[0021] like Figure 1 and Figure 2As shown, in one embodiment, a textile industry atmospheric dust collection device includes a dust collection housing 100, an inlet adjustment component 200, a rotating mounting seat 300, a plurality of filter elements 400 and a flow guide 500; an air inlet cavity 110 and an air outlet cavity 120 are arranged inside the dust collection housing 100, and the two ends of the air outlet cavity 120 are arranged vertically, one end of which is connected to one side of the air inlet cavity 110, and the other end faces a side away from the air inlet cavity 110; the inlet adjustment component 200 is installed in the air inlet cavity 110, and is used to adjust the opening area of ​​the air inlet cavity 110; the rotating mounting seat 30 ... The mounting seat 300 is installed at the vertical connection between the two ends of the air outlet cavity 120. One side of the rotating mounting seat 300 is located in the air outlet cavity 120, and the other side is located outside the air outlet cavity 120. A plurality of third mounting cavities 360 are arranged in a circular array on the rotating mounting seat 300; a plurality of filter elements 400 are respectively installed in the plurality of third mounting cavities 360, and the two ends of the filter elements 400 along the radial direction of the rotating mounting seat 300 are respectively used for entering or discharging dust; the guide element 500 is rotatably installed at the center of the rotating mounting seat 300, and is used for adjusting the filter element 400 through which the dust flows.

[0022] The above-mentioned textile industry atmospheric dust collection equipment, when in use, moves the dust collection housing 100 to the top of the textile machine, and makes the air inlet chamber 110 located directly above the textile machine, at this time, adjusts the inlet adjustment component 200 as needed, thereby changing the opening area of ​​the air inlet chamber 110 to adapt to the entry of dust of different sizes, then starts the pneumatic device, and evacuates the air outlet chamber 120, at this time, the air inlet chamber 110 will absorb the dust generated when the textile machine is running, and make the dust enter the air inlet chamber 110 and the air outlet chamber 120 in turn, because the two ends of the air outlet chamber 120 It is arranged vertically, and one end of the air outlet cavity 120 is connected to one side of the air inlet cavity 110, so that the dust sucked into the air outlet cavity 120 will not flow back to the air inlet cavity 110, and then the dust will flow through the two filter elements 400 and the guide element 500 in sequence. During this process, the filter element 400 will be blocked by the components. At this time, the guide element 500 can be rotated to adjust the dust flow path, and the filter element 400 can also be removed and replaced. This structure has a better dust collection effect, and compared with the sticky textile dust, this structure is easier to replace and can effectively prevent dust adhesion.

[0023] like Figure 3 As shown, in one embodiment, a plurality of long holes 150 and second mounting holes 160 are provided at intervals along the horizontal direction on opposite sides of the air inlet cavity 110; the long holes 150 are longitudinally arranged and located above the second mounting holes 160, and two folding plates 170 are provided at the bottom end of the air inlet cavity 110, one end of the folding plates 170 is horizontally arranged and connects the opposite sides of the air inlet cavity 110, and the other ends of the two folding plates 170 are opposite and bent downward to form an opening smaller than the horizontal interface of the air inlet cavity 110.

[0024] Specifically, a first installation cavity 130 is opened at the vertical connection of the air outlet cavity 120, and the first installation cavity 130 partially passes through the dust collection shell 100. A first installation hole 140 is opened at the central axis of the first installation cavity 130. A cover plate 180 is arranged at the first installation cavity 130, and both ends of the cover plate 180 are fixed on the dust collection shell 100, and the inner surface of the cover plate 180 is a curved surface structure, and a complete cylindrical cavity is formed between the cover plate 180 and the first installation cavity 130 in the dust collection shell 100.

[0025] like Figure 4 and Figure 5 As shown, in one embodiment, the inlet adjustment assembly 200 includes a first plug rod 210, a first baffle plate 220, a second plug rod 240, a support rod 250 and a gripping rod 260; both ends of the first plug rod 210 are respectively inserted into the two second mounting holes 160, the two first baffle plates 220 are respectively arranged on both sides of the first plug rod 210, and form an angle with the opening upward, the two ends of the second plug rod 240 are respectively inserted into the two long holes 150, and a plurality of support rods 250 are arranged on both horizontal sides of the second plug rod 240, one end of the support rod 250 abuts against the first baffle plate 220, and the gripping rod 260 is located at the end of the second plug rod 240 located outside the air inlet cavity 110.

[0026] Specifically, the first baffle plate 220 is away from the first insertion rod 210 and is provided with a second baffle plate 230 on the opposite side. The second baffle plate 230 is vertically arranged with the first baffle plate 220 , and an angle with an opening facing downward is formed between the two second baffle plates 230 .

[0027] When it is necessary to adjust the opening area of ​​the air inlet chamber 110, the second plug rod 240 can be adjusted up and down, such as by moving the second plug rod 240 up and down through the handle. When the second plug rod 240 moves downward, the ends of the multiple support rods 250 will gradually push the two first baffles 220 to both sides, thereby increasing the area formed by the first baffles 220 and making the distance between the two adjacent first baffles 220 closer. This structural arrangement ensures that even after the pneumatic device stops running, the dust in the air inlet chamber 110 will not fall into the outside of the air inlet chamber 110, but will fall into the V-shaped space formed between the two first baffles 220, thereby preventing dust from falling into the external environment.

[0028] like Figure 6As shown, in one embodiment, the rotating mounting seat 300 includes a fixing ring 310, a first curved plate 320, a partition 330 and a second curved plate 340; the multiple partitions 330 are arranged in a ring array, and the two fixing rings 310 are respectively connected to the two ends of the multiple partitions 330, and the multiple partitions 330 are each provided with a first curved plate 320 at one opposite end and a second curved plate 340 at the other end. A second mounting cavity 350 is formed between the multiple first curved plates 320, and a third mounting cavity 360 is formed between two adjacent partitions 330.

[0029] Specifically, there is a gap between two adjacent first arc plates 320, and there is a gap between two adjacent second arc plates 340. Both gaps are located at the radius of the second installation cavity 350, and the inner surface of the fixing ring 310 and the inner surface of the first arc plate 320 are located on the same curved surface.

[0030] like Figure 7 As shown, in one embodiment, the filter element 400 is inserted into the third installation cavity 360 along the central axis direction of the second installation cavity 350 , and there is a gap between two adjacent second arc plates 340 and between two adjacent first arc plates 320 .

[0031] Specifically, the filter element 400 includes a filter block 410 and a stopper 420 . The stopper 420 is located at both ends of the filter block 410 and is used to close both ends of the filter block 410 .

[0032] like Figure 8 As shown, in one embodiment, the guide member 500 is inserted into the second installation cavity 350 , and a through hole 510 is opened on the surface of the guide member 500 , and both ends of the through hole 510 are respectively facing the interval formed by two adjacent first arc-shaped plates 320 .

[0033] Specifically, the two ends of the through opening 510 are arranged in an expansion structure, and the middle part of the through opening 510 is smaller in area than the two ends.

[0034] In one embodiment, a method for using a textile industry atmospheric dust collection device is applied to the textile industry atmospheric dust collection device of any of the above embodiments, comprising the following steps: The air inlet cavity is arranged right above the textile machine, and the inlet regulating assembly is adjusted to change the opening area of ​​the air inlet cavity.

[0035] The pneumatic device is started to evacuate the air outlet cavity, so that the dust at the air inlet cavity is sucked into the rotating mounting seat, and the filter element in the rotating mounting seat filters the dust.

[0036] When the filtering effect of the current filter element becomes worse, the guide element is rotated to adjust the filter element through which the dust passes, and the filter element with the worse filtering effect is removed and replaced.

[0037] The method of using the above-mentioned atmospheric dust collection equipment for the textile industry is as follows: when in use, the dust collection housing is moved to above the textile machine, and the air inlet chamber is located directly above the textile machine. At this time, the inlet adjustment component is adjusted as needed to change the opening area of ​​the air inlet chamber to adapt to the entry of dust of different sizes. The pneumatic device is then started, and the air outlet chamber is evacuated. At this time, the air inlet chamber will adsorb the dust generated when the textile machine is running, and allow the dust to enter the air inlet chamber and the air outlet chamber in turn. Since the two ends of the air outlet chamber are vertically arranged, and one end of the air outlet chamber is connected to one side of the air inlet chamber, the dust sucked into the air outlet chamber will no longer flow back to the air inlet chamber. Subsequently, the dust will flow through two filter elements and a guide element in turn. During this process, the filter element will be blocked by the component. At this time, the guide element can be rotated to adjust the dust flow path, and the filter element can also be removed and replaced. This structure has a better dust collection effect, and relative to the sticky textile dust, this structure is easier to replace and can effectively prevent dust adhesion.

[0038] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0039] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A textile industry atmospheric dust collection device, characterized in that: include: The dust collecting shell has an air inlet cavity and an air outlet cavity arranged inside, and the two ends of the air outlet cavity are arranged vertically, one end of which is connected to one side of the air inlet cavity, and the other end faces a side away from the air inlet cavity; An inlet adjustment component, installed in the air inlet cavity, and used to adjust the opening area of ​​the air inlet cavity; A rotating mounting seat is mounted at the vertical connection between the two ends of the air outlet cavity, one side of the rotating mounting seat is located inside the air outlet cavity, and the other side is located outside the air outlet cavity, and a plurality of third mounting cavities are arranged on the rotating mounting seat in a circular array; A plurality of filter elements are respectively installed in the plurality of the third installation cavities, and the two ends of the filter elements along the radial direction of the rotating installation seat are respectively used for the entry or discharge of dust; The flow guide is rotatably mounted at the center of the rotating mounting seat and is used to adjust the filter element through which the dust flows.

2. The textile industry atmospheric dust collection equipment according to claim 1 is characterized in that: The opposite sides of the air inlet cavity are provided with a plurality of long holes and a second mounting hole spaced apart in the horizontal direction; the long holes are longitudinally arranged and located above the second mounting holes, and two folding plates are arranged at the bottom end of the air inlet cavity, one end of the folding plate is horizontally arranged and connects the opposite sides of the air inlet cavity, and the other ends of the two folding plates are opposite and bent downward to form an opening smaller than the horizontal interface of the air inlet cavity.

3. The textile industry atmospheric dust collection equipment according to claim 2, characterized in that: The inlet adjustment assembly includes a first plug rod, a first baffle, a second plug rod, a support rod and a grip rod; the two ends of the first plug rod are respectively inserted into the two second mounting holes, the two first baffles are respectively arranged on both sides of the first plug rod, and form an angle with the opening upward, the two ends of the second plug rod are respectively inserted into the two long holes, and a plurality of support rods are arranged on both horizontal sides of the second plug rod, one end of the support rod abuts against the first baffle, and the grip rod is located at the end of the second plug rod located outside the air inlet cavity.

4. The textile industry atmospheric dust collection equipment according to claim 3 is characterized in that: The first baffle plate is away from the first plug rod and is provided with a second baffle plate on one side opposite to the first plug rod. The second baffle plate is vertically arranged to the first baffle plate, and an angle with an opening facing downward is formed between the two second baffle plates.

5. The textile industry atmospheric dust collection equipment according to claim 1, characterized in that: A first installation cavity is provided at the vertical connection of the air outlet cavity, and the first installation cavity partially passes through the dust collection shell. A first installation hole is provided at the central axis of the first installation cavity. A cover plate is provided at the first installation cavity, and both ends of the cover plate are fixed on the dust collection shell. The inner surface of the cover plate is an arc structure, and a complete cylindrical cavity is formed between the cover plate and the first installation cavity in the dust collection shell.

6. The atmospheric dust collection equipment for the textile industry according to claim 5, characterized in that: The rotating mounting seat includes a fixing ring, a first arc-shaped plate, a partition and a second arc-shaped plate; the plurality of partitions are arranged in a circular array, the two fixing rings are respectively connected to the two ends of the plurality of partitions, the first arc-shaped plate is arranged at one opposite end of the plurality of partitions, and the second arc-shaped plate is arranged at the other end, a second mounting cavity is formed between the plurality of the first arc-shaped plates, and a third mounting cavity is formed between two adjacent partitions.

7. The atmospheric dust collection equipment for the textile industry according to claim 6 is characterized in that: The filter element is inserted into the third installation cavity along the central axis direction of the second installation cavity, and there is a gap between two adjacent second arc plates and between two adjacent first arc plates.

8. The atmospheric dust collection equipment for the textile industry according to claim 7 is characterized in that: The filter element comprises a filter block and a stopper, wherein the stopper is located at two ends of the filter block and is used to seal the two ends of the filter block.

9. The atmospheric dust collection equipment for the textile industry according to claim 6, characterized in that: The guide member is inserted into the second installation cavity, a through opening is provided on the surface of the guide member, and two ends of the through opening are respectively oriented toward the interval formed by two adjacent first arc-shaped plates.

10. A method for using a textile industry atmospheric dust collection device, applied to the textile industry atmospheric dust collection device as claimed in any one of claims 1 to 9, characterized in that: The method comprises: The air inlet cavity is arranged just above the textile machine, and the inlet adjustment component is adjusted to change the opening area of ​​the air inlet cavity; The pneumatic device is started to evacuate the air outlet cavity, so that the dust at the air inlet cavity is sucked into the rotating mounting seat, and the filter element in the rotating mounting seat will filter the dust; When the filtering effect of the current filter element deteriorates, the flow guide element is rotated to adjust the filter element through which the dust passes, and the filter element with the deteriorated filtering effect is removed and replaced.

Citation Information

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