Polluted particulate matter multi-stage filtering device for atmosphere control

Abstract

The invention discloses a pollution particulate matter multi-stage filtering device for air treatment, and relates to the technical field of air treatment. Comprising a bottom frame and an upper frame, a top bin is formed at the upper frame, an opening is formed in one side of the top bin, a coarse filtering mechanism is arranged between the inner walls of the two sides of the top bin, a first fan is arranged on one side of the upper frame and exhausts air filtered by the coarse filtering mechanism again, a bottom bin is arranged below the upper frame, and a second fan and a bottom filtering device are arranged at the bottom bin. Through the multi-stage collaborative design of the coarse filtering mechanism and the bottom filtering device, pollution particles with different particle sizes can be efficiently intercepted, the contact area is increased through the hollow cylindrical rotary filter screen, and the purification efficiency of mixed pollutants such as PM2.5 and PM10 is remarkably improved through fine filtering of the bottom filter cylinder and the end filter screen; the problem that the single-stage filtering capacity of a small single machine is insufficient is solved, and the pollution treatment requirements of industrial areas, construction sites and other local scenes are met.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air treatment, in particular to a multi-stage pollution particle filtering device for air treatment. BACKGROUND

[0002] In local environments such as industrial areas, construction sites, and transportation hubs, the concentration of pollution particles such as PM2.5 and PM10 often far exceeds that of surrounding areas, forming a local high-pollution zone. These areas have concentrated pollution sources and poor air flow, making it easy for particles to accumulate continuously, which not only threatens the health of workers but also may affect the surrounding environment through diffusion.

[0003] In existing treatment equipment, large centralized purification systems are difficult to adapt to local scenarios due to their large size and installation limitations. Small single machines often use single-stage filtration, which is insufficient for intercepting high-concentration mixed particles. Fixed filter screens are prone to clogging, requiring frequent shutdown for cleaning, which is time-consuming. In addition, most equipment lacks targeted local adaptation design.

[0004] In view of the particularity of local environments, developing a device with high-efficiency staged filtration, self-adaptive cleaning, and flexible deployment characteristics is key to solving the problem of local high pollution. SUMMARY

[0005] To address the shortcomings of the prior art, the present application provides a multi-stage pollution particle filtering device for air treatment, which realizes multi-stage efficient filtration of large particles and flocs, and reduces clogging and maintenance costs through structural design.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solution: a multi-stage pollution particle filtering device for air treatment, comprising:

[0007] A bottom frame and an upper frame are provided, and a top bin is formed at the upper frame. The top bin has an opening on one side and a coarse filtering mechanism is arranged between the inner walls on both sides.

[0008] A fan one is arranged on one side of the upper frame, which re-discharges the air filtered by the coarse filtering mechanism.

[0009] A bottom bin is arranged below the upper frame, and a fan two and a bottom filtering device are arranged in the bottom bin. The fan two draws air through the bottom filtering device into the bottom bin and discharges it from the output end of the fan two.

[0010] Further to this solution, the coarse filtering mechanism includes two parallel side plates, a filter screen is arranged between the two side plates, the filter screen is in the form of a hollow cylinder, and the filter screen rotates uniformly around its axis.

[0011] Further, the upper frame is provided with bearing seat one on both sides, a pump pipe is coaxially arranged between the two side plates, one end of the pump pipe penetrates through the bearing seat one, a plurality of spray heads are arranged on the pump pipe, and one side of the side plate away from the water inlet end of the pump pipe is rotatably arranged at the other bearing seat one.

[0012] Further, a circular hole is formed in one side of the bottom bin, the bottom filtering device comprises a filter cartridge, the filter cartridge is inserted into the hole, one end of the filter cartridge is exposed outside the bottom bin from the circular hole, and an end filter screen is connected to the end of the filter cartridge exposed outside the bottom bin in a flange manner, and the side surface of the end filter screen parallel to the side wall of the bottom bin is meshed.

[0013] Further, the filter cartridge is coaxially provided with a shaft, a middle bearing is arranged at the center of the mesh surface of the end filter screen, the end of the shaft is provided with a thread, and the end of the shaft provided with the thread is fixed through the middle bearing by a nut.

[0014] Further, one of the side plates is fixed with a chain wheel one after penetrating through the bearing seat one, a chain wheel two is arranged at the end of the shaft away from the end filter screen, the chain wheel two rotates synchronously with the shaft, the chain wheel one and the chain wheel two are connected through a chain, and a base is arranged at the upper frame, and a driving source for driving the chain wheel one is arranged at the base.

[0015] Further, a tab is fixed to the end of the shaft close to the inner side of the mesh surface of the end filter screen, and a convex point is arranged on the side of the tab facing the mesh surface and in contact with the mesh surface through the convex point.

[0016] Further, a screw hole is arranged at the position corresponding to the chain wheel two of the shaft, and the chain wheel two is fixed to the surface of the shaft through a screw.

[0017] Further, the top bin formed by the upper frame is separated from the bottom bin through a horizontal plate, a partition plate is fixed to the top of the horizontal plate and in contact with the filter screen, the partition plate divides the top bin into chamber A and chamber B, the spray heads on the pump pipe are opposite to chamber B, and an interface for mounting a water pumping pipe is arranged at the side wall of the top bin in chamber B.

[0018] Further, an adjusting member is arranged at one side of the upper frame, the adjusting member comprises bearing seat two arranged at both sides of the upper frame, a baffle is rotatably arranged between the two bearing seat two, and a handle is arranged at both ends of the baffle, the bearing seat two is a damping bearing seat, and the filtering material in chamber B is directly discharged by adjusting the angle of the baffle.

[0019] Compared with the prior art, the present application has the following beneficial effects:

[0020] The atmospheric pollution particle multi-stage filtering device can efficiently intercept pollution particles of different particle sizes through the multi-stage cooperation design of the coarse filtering mechanism and the bottom filtering device, the hollow cylindrical rotating filter screen increases the contact area, and the fine filtering of the bottom filter cartridge and the end filter screen significantly improves the purification efficiency of mixed pollutants such as PM2.5 and PM10, solves the problem of insufficient filtering capacity of small single machines, and meets the pollution control needs of local scenes such as industrial areas and construction sites.

[0021] At the same time, the device effectively reduces the maintenance cost and operation difficulty of local governance through the self-cleaning mechanism and flexible structure design, the rotating filter screen cooperates with the pump water pipe nozzle to realize online cleaning, the contact cleaning of the end filter screen and the end filter screen reduces the risk of blockage, and the daily maintenance time is greatly shortened; the compact chassis and upper frame structure is convenient for deployment in closed or semi-closed space. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0023] Figure 2 It is a schematic diagram of the left shaft side structure of the present application;

[0024] Figure 3 It is a schematic diagram of the internal structure of the top bin of the present application;

[0025] Figure 4 It is a schematic diagram of the internal structure of the top bin of the present application; Figure 3 It is a schematic diagram of the cross-section structure at the center line L.

[0026] In the figure: 1, chassis; 2, upper frame; 201, top bin; 3, coarse filtering mechanism; 301, side plate; 302, bearing seat one; 303, filter screen; 304, pump water pipe; 4, clamping plate; 5, adjusting part; 501, baffle; 502, bearing seat two; 503, handle; 6, bottom bin; 7, bottom filtering device; 701, filter cartridge; 702, end filter screen; 703, shaft; 704, paddle; 705, middle bearing; 706, nut; 8, partition plate; 9, connecting pipe; 10, fan one; 11, driving source; 12, chain wheel one; 13, chain wheel two; 14, chain; 15, fan two. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0028] As Figure 1As shown, the present invention provides a technical solution: a multi-stage filtration device for particulate matter in air pollution control, including a base frame 1 and an upper frame 2. A top chamber 201 is formed at the upper frame 2. One side of the top chamber 201 is open and a coarse filtration mechanism 3 is provided between the inner walls of the two sides. A fan 10 is provided on one side of the upper frame 2. The fan 10 is installed at the upper frame 2 through a pipe 9. The fan 10 re-exhausts the air filtered by the coarse filtration mechanism 3. A bottom chamber 6 is provided below the upper frame 2. A second fan 15 and a bottom filtration device 7 are provided at the bottom chamber 6. The second fan 15 draws air into the bottom chamber 6 through the bottom filtration device 7 and discharges it from the output end of the second fan 15.

[0029] The base frame 1 and the upper frame 2 serve as the supporting structure for the entire device, providing an installation foundation for other components and ensuring the overall stability of the device. One side opening of the top chamber 201 is used to introduce the air to be filtered. After the air enters the top chamber 201, it first undergoes preliminary filtration through the coarse filter mechanism 3 to remove larger-diameter pollutant particles. Then, under the action of the fan 10, part of the coarsely filtered air is discharged, while another part of the air enters the bottom chamber 6. Under the action of the fan 25, it undergoes further filtration through the bottom filter device 7 and is finally discharged from the output end of the fan 25. This achieves multi-stage filtration of pollutant particles in the atmosphere and improves the filtration effect.

[0030] like Figure 1 and Figure 2 As shown, the coarse filtration mechanism 3 includes two parallel side plates 301, and a filter screen 303 is disposed between the two side plates 301. The filter screen 303 is in the shape of a hollow cylinder and rotates uniformly around its axis.

[0031] The two side plates 301 are used to fix the filter screen 303 to maintain its stable structure. The filter screen 303 has a hollow cylindrical design, which increases the contact area with air. When the filter screen 303 rotates evenly around its axis, it can make full contact with the air and improve the efficiency of coarse filtration. At the same time, it can also avoid the filter screen 303 from becoming clogged after long-term local filtration, thus ensuring that the filtration effect of the filter screen 303 is maintained for a longer period of time.

[0032] like Figure 2 and Figure 4 As shown, bearing seats 302 are provided on both sides of the upper frame 2, and a water pump pipe 304 is coaxially installed between the two side plates 301. One end of the water pump pipe 304 passes through the bearing seat 302, and several nozzles are provided on the water pump pipe 304. The side of the side plate 301 away from the water inlet end of the water pump pipe 304 is rotatably installed at the other bearing seat 302.

[0033] The bearing seat 302 provides support and positioning for the rotation of the side plate 301 and the pump water pipe 304, ensuring smoothness and stability of the rotation, and the pump water pipe 304 is used to transport cleaning water, one end of which is connected to an external water source, and the other end passes through the bearing seat 302, and a plurality of nozzles on the pipe can spray water to the filter screen 303 to clean the filter screen 303. Since the filter screen 303 rotates, the water sprayed by the nozzles can uniformly cover the surface of the filter screen 303, effectively removing the attached contaminated particles on the filter screen 303, preventing the filter screen 303 from being blocked, and ensuring the continuous and effective operation of the coarse filtering mechanism 3.

[0034] As shown in Figure 3 , a circular hole is formed on one side of the bottom bin 6, and the bottom filtering device 7 includes a filter cartridge 701 which is inserted into the hole, one end of the filter cartridge 701 being exposed outside the bottom bin 6, and the end of the filter cartridge 701 exposed outside the bottom bin 6 being connected to an end filter screen 702 through a flange, and the end filter screen 702 having a mesh surface parallel to one side of the side wall of the bottom bin 6.

[0035] The circular hole on the bottom bin 6 provides a position for the installation of the filter cartridge 701, which is inserted into the hole for easy installation and removal, and the end of the filter cartridge 701 exposed outside the bottom bin 6 is connected to the end filter screen 702 through a flange, which has the characteristics of tight connection and easy disassembly, facilitating the maintenance and replacement of the filter cartridge 701 and the end filter screen 702, and the mesh surface of the end filter screen 702 is parallel to the side wall of the bottom bin 6. When air is sucked in by the second fan 15, it first passes through the end filter screen 702 to remove some larger particles, and then enters the filter cartridge 701 for further filtration, improving the fineness of the filtration.

[0036] As shown in Figure 3 and Figure 4 , the filter cartridge 701 is coaxially provided with a shaft 703, the mesh surface of the end filter screen 702 is centrally provided with a middle bearing 705, the end of the shaft 703 is provided with a thread, and the end of the shaft 703 provided with the thread is fixed by screwing through the middle bearing 705 and a nut 706.

[0037] The shaft 703 is coaxially arranged with the filter cartridge 701 to ensure the stability of the rotation of the shaft 703, the middle bearing 705 provides support for the end of the shaft 703, reducing friction and shaking during rotation of the shaft 703, and the shaft 703 is fixed by screwing the nut 706, which is firm and easy to disassemble, facilitating maintenance of the shaft 703, the end filter screen 702 and other components.

[0038] As shown in Figure 3As shown, one of the side plates 301 passes through the bearing seat 302 and is fixed with a sprocket 12. A sprocket 2 13 is installed at the end of the shaft 703 away from the end filter 702. The sprocket 2 13 rotates synchronously with the shaft 703. The sprocket 12 and the sprocket 2 13 are connected by a chain 14. A base is provided at the upper frame 2. A drive source 11 for driving the sprocket 12 to rotate is installed at the base. A lever 704 is fixed at the end of the shaft 703 near the inner side of the mesh surface of the end filter 702. The side of the lever 704 facing the mesh surface has a protrusion and contacts the mesh surface through the protrusion.

[0039] like Figure 3 and Figure 4 As shown, the drive source 11 is installed on the base of the upper frame 2, providing power for the rotation of the entire device. When the drive source 11 is started, it drives the first sprocket 12 to rotate. The first sprocket 12 drives the second sprocket 13 to rotate through the chain 14. Since the second sprocket 13 rotates synchronously with the shaft 703, the shaft 703 rotates accordingly. When the shaft 703 rotates, it will drive the paddle 704 to rotate together. The protrusions on the paddle 704 contact the mesh surface of the end filter screen 702. During the rotation, the protrusions will scrape the mesh surface to remove the pollutant particles attached to the mesh surface, or shake the surface particles by vibration to prevent the end filter screen 702 from clogging and ensure that the air can pass smoothly through the bottom filter device 7 for filtration.

[0040] like Figure 4 As shown, the shaft 703 has a screw hole corresponding to the sprocket 13. The sprocket 13 is fixed to the surface of the shaft 703 by screws. The screw connection method is simple and reliable, which makes it easy to firmly fix the sprocket 13 to the shaft 703, ensuring that the sprocket 13 and the shaft 703 rotate synchronously. It also makes it easy to disassemble and replace the sprocket 13 or the shaft 703 when they are damaged, thus reducing maintenance costs.

[0041] Looking back Figure 2 The top chamber 201 formed by the upper frame 2 is separated from the bottom chamber 6 by a horizontal plate. A partition 8 is fixed on the top of the horizontal plate and the top of the partition 8 is in contact with the filter screen 303. The partition 8 divides the top chamber 201 into chamber A and chamber B. The nozzle on the pump pipe 304 is directly facing chamber B. An interface for installing a water pumping pipe is opened on one side wall of the top chamber 201 located in chamber B.

[0042] The transverse plate separates the top chamber 201 and the bottom chamber 6 to prevent air and dirt from interfering with each other. The partition plate 8 divides the top chamber 201 into chamber A and chamber B. Chamber A is used for air circulation and discharge after preliminary filtration, and chamber B is used for collecting contaminated particles and sewage washed during rough filtration. The nozzle on the pump pipe 304 is opposite chamber B, so that the sewage and dirt after cleaning the filter screen 303 can directly fall into chamber B for easy collection. The interface on the side wall of chamber B in the top chamber 201 is used to install the water suction pipe, which can suck out the sewage and dirt in chamber B for treatment, keeping chamber B clean and avoiding the accumulation of dirt affecting the normal operation of the device.

[0043] As shown in Figure 3 The upper shelf 2 on one side is also provided with an adjusting piece 5, which includes two bearing seats two 502 respectively installed on both sides of the upper shelf 2. A baffle 501 is rotatably installed between the two bearing seats two 502. A handle 503 is also provided at both ends of the baffle 501. The bearing seat two 502 is a damping bearing seat. The angle of the baffle 501 is directly adjusted to release the filtered material in chamber B. A clamping plate 4 is also provided at the top of the upper shelf 2. The clamping plate 4 is adapted to the contour of the filter screen 303 and the two side plates 301 to prevent large particles from entering directly from the gap.

[0044] The bearing seat two 502 provides support for the rotation of the baffle 501. The damping bearing seat can keep the baffle 501 stable at any angle position, making it easy to adjust the angle of the baffle 501 as needed. When the filtered material in chamber B accumulates to a certain extent, the angle of the baffle 501 can be adjusted by rotating the handle 503 to release the filtered material in chamber B for cleaning. This operation is simple and convenient, reducing the difficulty and workload of maintenance.

[0045] In summary, when filtering atmospheric pollution particles, the driving source 11 is started to drive the shaft rod 703 and the filter screen 303 to rotate synchronously through the chain wheel one 12, the chain 14 and the chain wheel two 13. The air to be filtered enters from the opening of the top chamber 201. First, it enters chamber A. During the rotation of the filter screen 303, larger particles in the air are intercepted by the filter screen 303, achieving rough filtration. The fan one 10 discharges part of the air after rough filtration.

[0046] At the same time, the pump pipe 304 is connected to an external water source, and the nozzle sprays water onto the rotating filter screen 303 to clean it. The contaminated particles and sewage washed down enter chamber B under the blockage of the partition plate 8. The sewage and dirt in chamber B can be pumped out through the water suction pipe connected to the water suction pipe interface for treatment. When it is necessary to clean the solid filtered material in chamber B, the handle 503 is rotated to adjust the angle of the baffle 501 to release the filtered material.

[0047] The coarse filtration is to reduce the content of large particles in the air. Under the action of the fan two 15, the air is drawn to the bottom filter device 7. First, the air passes through the mesh surface of the end filter screen 702, and part of the larger size of the pollution particles is intercepted. When the shaft 703 rotates, the paddle 704 is driven to rotate. The convex points on the paddle 704 clean the mesh surface of the end filter screen 702 to prevent clogging. After the air passes through the end filter screen 702, it enters the filter cartridge 701 for further filtration to remove smaller pollution particles. Finally, the filtered air is discharged from the output end of the fan two 15.

[0048] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely exemplary and that changes in form and detail can be made without departing from the principles and spirit of the application. The scope of the application is defined by the appended claims and their equivalents.

Claims

1. A multi-stage filtering device for atmospheric pollution particles, characterized by, The utility model relates to a kind of air filter, including: Chassis (1) and upper shelf (2), top bin (201) is formed at upper shelf (2), and one side opening is provided with coarse filtering mechanism (3) between two side walls in top bin (201); One side of upper shelf (2) is provided with fan one (10), and fan one (10) is discharged after air filtered by coarse filtering mechanism (3); Bottom bin (6) is provided below upper shelf (2), and fan two (15) and bottom filter device (7) are provided at bottom bin (6), and fan two (15) is extracted into bottom bin (6) by bottom filter device (7) and is discharged from fan two (15) output end.

2. The multi-stage filtering device for pollution particulate matters in air treatment according to claim 1, characterized in that: The coarse filtering mechanism (3) includes two parallelly arranged side plates (301), a filter screen (303) is arranged between the two side plates (301), the filter screen (303) is in the form of a hollow cylinder, and the filter screen (303) rotates uniformly around its axis.

3. The multi-stage filtering device for pollution particulate matters in air treatment according to claim 1, characterized in that: The upper shelf (2) is provided with a bearing seat one (302) on both sides, a pump water pipe (304) is coaxially installed between the two side plates (301), one end of the pump water pipe (304) penetrates through the bearing seat one (302), a plurality of nozzles are arranged on the pump water pipe (304), and one side of the side plate (301) away from the water inlet end of the pump water pipe (304) is rotatably installed at the other bearing seat one (302).

4. The multi-stage filtering device for pollution particulate matters in air treatment according to claim 1, characterized in that: The bottom bin (6) is provided with a circular hole on one side, the bottom filter device (7) includes a filter cartridge (701), the filter cartridge (701) is inserted into the hole, one end of the filter cartridge (701) is exposed outside the bottom bin (6) from the circular hole, an end filter screen (702) is connected to one end of the filter cartridge (701) exposed outside the bottom bin (6) through a flange, and the end filter screen (702) is in the form of a mesh on one side parallel to the side wall of the bottom bin (6).

5. The multi-stage filtration device for pollution particulate matters in air treatment according to claim 4, characterized in that: The filter cartridge (701) is coaxially provided with a shaft (703), a middle bearing (705) is arranged in the center of the mesh surface of the end filter screen (702), the end of the shaft (703) is provided with a thread, and the end of the shaft (703) provided with the thread is fixed through a nut (706) after penetrating through the middle bearing (705).

6. The multi-stage filtering device for pollution particulate matters in air treatment according to claim 5, characterized in that: One of the side plates (301) is fixed with a chain wheel one (12) after penetrating through the bearing seat one (302), the end of the shaft (703) away from the end filter screen (702) is provided with a chain wheel two (13), the chain wheel two (13) rotates synchronously with the shaft (703), the chain wheel one (12) and the chain wheel two (13) are connected through a chain (14), and the upper shelf (2) is provided with a base, and a driving source (11) for driving the chain wheel one (12) is installed at the base.

7. The multi-stage filtering device for pollution particulate matters in air treatment according to claim 5, characterized in that: The end of the shaft (703) close to the inner side of the mesh surface of the end filter screen (702) is fixed with a tab (704), the side of the tab (704) facing the mesh surface is provided with a convex point and contacts the mesh surface through the convex point.

8. The multi-stage filtering device for pollution particulate matters in air treatment according to claim 5, characterized in that: The shaft (703) is provided with a screw hole corresponding to the chain wheel two (13), and the chain wheel two (13) is fixed to the surface of the shaft (703) through a screw.

9. The multi-stage filtration device for pollution particulate matters in air treatment according to claim 1, characterized in that: The upper shelf (2) forms the top bin (201) and the bottom bin (6) are separated by the transverse plate, the top of the transverse plate is fixed with the partition (8) and the top of the partition (8) is in contact with the filter screen (303), and the partition (8) divides the top bin (201) into chamber A and chamber B, the nozzle on the water pump pipe (304) is opposite to the chamber B, and the top bin (201) is provided with an interface for installing the water pump at one side wall of the chamber B.

10. The multi-stage filtration device for pollution particulate matters in air treatment according to claim 1, characterized in that: The upper shelf (2) is provided with an adjusting part (5) on one side, the adjusting part (5) comprises two bearing seats two (502) respectively installed on the two sides of the upper shelf (2), the two bearing seats two (502) are rotatably installed with a baffle (501), and the two ends of the baffle (501) are provided with a handle (503), the bearing seat two (502) is a damping bearing seat, and the filtering material in the chamber B is directly released by adjusting the angle of the baffle (501).

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