Filter for air pollution control

Abstract

The invention relates to the field of atmospheric pollution treatment, and particularly discloses a filter for atmospheric pollution treatment, which comprises a box body, the inner walls of the two sides of the box body are arc-shaped, the bottom end of the box body is fixedly connected with a collecting box, the collecting box is communicated with the box body, and an air inlet box is fixed at the bottom end of the collecting box in a penetrating manner, penetrates through the collecting box, extends into the box body and is communicated with the box body; an exhaust pipe is fixed to the top end of the box, two first rotating shafts are symmetrically arranged in the box, the axes of the two first rotating shafts are consistent with the axes of the arc-shaped faces of the inner walls of the two sides of the box respectively, and the two ends of each first rotating shaft are rotationally connected with the inner walls of the box through bearings respectively. According to the device, through the arrangement of a wind shield, when polluted air is blown into the box body, a filter screen mounting frame and a filter screen swing back and forth between two control switches, in the reciprocating swing process of the filter screen mounting frame, a rubber wheel drives a belt to conduct reciprocating transmission back and forth, and in the belt transmission process, the filter screen is swept back and forth through a brush; therefore, the purpose of automatically cleaning the filter screen is achieved.

Description

Technical Field

[0001] The present invention relates to the field of air pollution control, and particularly to a filter for air pollution control. Background Art

[0002] Air pollution is caused by certain substances entering the atmosphere due to human activities or natural processes, mainly including dust, floating dust, particulate suspensions, etc. When filtering and treating air pollution, an air filter is usually used for filtration. The air filter sucks in the external polluted air through a fan, and the polluted air sucked into the air filter is filtered by a filter screen and then discharged. Currently, the common filtering structure uses a filter screen to intercept and filter dust particles in the air. However, due to the single structure and the lack of a cleaning structure for the filter screen, after the filter screen works for a long time, it is very easy to accumulate and block a large number of dust particles on the filter screen surface, and even stubborn dust blocks will adhere to the filter screen, causing blockage of the filter screen, resulting in a reduction in filtration efficiency. Currently, it is necessary to regularly clean the filter screen manually, and during the cleaning process, the filter screen needs to be disassembled from the air filter to be cleaned, which is a cumbersome process and time-consuming and laborious.

[0003] To solve the above problems, the present invention proposes a filter for air pollution control. Summary of the Invention

[0004] To solve the above existing problems, the present invention provides a filter for air pollution control.

[0005] The present invention is realized through the following technical solutions: A filter for air pollution control, comprising a box body, a collection box and an exhaust pipe. The inner walls on both sides of the box body are arc-shaped. Two first rotating shafts are symmetrically arranged in the box body. The axis lines of the two first rotating shafts are respectively consistent with the axis lines of the arc-shaped surfaces of the inner walls on both sides of the box body. Both ends of the first rotating shaft are rotatably connected to the inner wall of the box body through bearings. A first sealing plate is attached between the two first rotating shafts. Both ends of the first sealing plate are fixed to the inner wall of the box body. Filter screen mounting frames are respectively fixed at the bottom ends of the two first rotating shafts. The bottom parts of the two filter screen mounting frames are respectively in sliding contact with the inner arc surfaces on both sides of the box body, and both end faces of the filter screen mounting frames are in sliding contact with the inner wall of the box body. A filter screen is detachably mounted on the filter screen mounting frame. A cleaning structure is mounted on one side of the filter screen mounting frame, and a plate-shaped component for adjustable ventilation is mounted on the other side of the filter screen mounting frame. The filter screen mounting frame, through the cooperation of gravity and the plate-shaped component for adjustable ventilation, realizes reciprocating swing within a set angle range. The cleaning structure performs periodic brushing work on the filter screen during the reciprocating swing of the filter screen mounting frame. Two positioning blocks are respectively fixed on the inner arc surfaces on both sides of the box body. Control switches are respectively mounted on the two positioning blocks. The control switch on the positioning block at the lower end can control the retraction of the telescopic end of the electric telescopic rod, and the control switch on the positioning block at the upper end can control the extension of the telescopic end of the electric telescopic rod.

[0006] Preferably, the collection box is fixed at the bottom end of the box body. The collection box is communicated with the box body. An air inlet box is fixedly penetrated at the bottom end of the collection box. The air inlet box penetrates through the collection box and extends into the box body to be communicated with it. The exhaust pipe is fixed at the top end of the box body. The exhaust pipe is communicated with the box body.

[0007] Preferably, the plate-shaped component for adjustable ventilation includes mounting plates symmetrically fixed at the top and bottom of the side wall of the filter screen mounting frame. A plurality of second rotating shafts are evenly arranged between the two mounting plates. Both ends of the second rotating shaft respectively penetrate through the two mounting plates and are rotatably connected to the contact points through bearings. A wind baffle is fixed on the side of the second rotating shaft facing the filter screen. The wind baffle is in contact with the mesh surface of the filter screen. A push rod is fixed at the top end of each second rotating shaft. A hinge pin is used to hinge and install an electric telescopic rod at a top corner on one side of the filter screen mounting frame. A connecting rod is hinged to the telescopic end of the electric telescopic rod through a hinge pin. Each push rod is hinged to the connecting rod through a hinge pin.

[0008] Preferably, the filter screen mounting frame is composed of a U-shaped frame and a limiting plate. The filter screen is inserted into the U-shaped frame and is in sliding connection with it. Slots for inserting the side frames of the filter screen are opened on the inner walls on both sides of the U-shaped frame. The limiting plate is fixed to the bottom end of the U-shaped frame through bolts. The limiting plate limits and fixes the filter screen in the U-shaped frame. The bottom end of the limiting plate is in sliding contact with the inner arc surface of the box body.

[0009] Preferably, the cleaning structure includes two third rotating shafts. Both ends of each third rotating shaft are rotatably connected to a fixing plate through bearings. The fixing plates are fixedly installed on the side walls of the U-shaped frame. The two third rotating shafts are respectively arranged at the upper and lower ends of the filter net. A rubber wheel is fixedly sleeved in the middle of the third rotating shaft at the lower end. The rubber wheel is arranged in contact with the inner arc surface of the box body. The two third rotating shafts are connected by two belts in a driving manner. The two belts are symmetrically arranged on the left and right sides of the rubber wheel. A plurality of cross plates are fixed on one side of the two belts facing the filter net. Brushes are fixed on one side of the cross plates facing the filter net.

[0010] Preferably, a flow dividing plate is fixed to the bottom end of the first sealing plate.

[0011] Preferably, box doors are hinged on both sides of the collection box.

[0012] Preferably, two operation openings are symmetrically formed in the left and right of the bottom of the box body. A second sealing plate is inserted and installed in each operation opening. A plurality of connecting plates are evenly fixed to the bottom surface of the second sealing plate. The connecting plates are fixedly connected to the box body by bolts.

[0013] Preferably, the control switch and the electric telescopic rod are both electrically connected to an external power supply through wires. The control switch is electrically connected to the electric telescopic rod through wires.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: Through the setting of the wind baffle, when polluted air is blown into the box body, since most areas of the filter net are blocked by the wind baffle, the ventilation area of the filter net is reduced, and the filter net is blown. At this time, the filter net drives the filter net mounting frame to rotate upward around the first rotating shaft. When the filter net mounting frame touches the control switch above, the telescopic end of the electric telescopic rod extends, causing the second rotating shaft and the wind baffle to rotate 90 degrees. The wind baffle no longer obstructs the ventilation of the filter net. At this time, the ventilation area of the filter net increases, and the filter net is no longer blown. The filter net mounting frame and the filter net fall back to their original positions under their own gravity. At this time, the control switch below is pressed by the rubber wheel again, and the telescopic end of the electric telescopic rod retracts, causing the second rotating shaft and the wind baffle to rotate 90 degrees in the reverse direction. At this time, the wind baffle blocks the filter net again to reduce its ventilation area. In this way, the filter net mounting frame and the filter net swing back and forth between the two control switches. During the reciprocating swing of the filter net mounting frame, the rubber wheel drives the belt to reciprocate back and forth. During the belt transmission process, the filter net is swept back and forth by the brush, thereby achieving the purpose of automatically cleaning the filter net. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a perspective view of the structure of the present invention; Figure 2 is a cross-sectional view of the structure of the present invention; Figure 3 is the three-dimensional view of a partial structure of the structure of the present invention Figure 2 in the structure; Figure 4 is the structure of the present invention Figure 3 rear view; Figure 5 is the structure of the present invention Figure 3 separate schematic diagram of the filter screen mounting frame in the structure; Figure 6 is the structure of the present invention Figure 3 separate schematic diagram of the filter screen in the structure.

[0016] In the figure: box body 1, exhaust pipe 2, collection box 3, intake box 4, second sealing plate 5, connecting plate 6, first sealing plate 7, flow dividing plate 8, first rotating shaft 9, filter screen mounting frame 10, U-shaped frame 10-1, limiting plate 11, mounting plate 12, second rotating shaft 13, wind baffle 14, push rod 15, connecting rod 16, electric telescopic rod 17, third rotating shaft 18, fixing plate 19, brush 20, belt 21, rubber wheel 22, cross plate 23, filter screen 24, control switch 25, positioning block 26, box door 27. Detailed implementation manners

[0017] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation manners: As shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6As shown in the figure, a filter for air pollution control includes a box body 1, a collection box 3 and an exhaust pipe 2. The inner walls on both sides of the box body 1 are arc-shaped. Two first rotating shafts 9 are symmetrically arranged inside the box body 1. The axis lines of the two first rotating shafts 9 are respectively consistent with the axis lines of the arc-shaped surfaces of the inner walls on both sides of the box body 1. Both ends of the first rotating shaft 9 are rotatably connected to the inner wall of the box body 1 through bearings. A first sealing plate 7 is attached between the two first rotating shafts 9. Both ends of the first sealing plate 7 are fixed to the inner wall of the box body 1. Filter screen mounting frames 10 are respectively fixed to the bottoms of the two first rotating shafts 9. The bottoms of the two filter screen mounting frames 10 are respectively in sliding contact with the inner arc surfaces on both sides of the box body 1, and both end faces of the filter screen mounting frames 10 are in sliding contact with the inner wall of the box body 1. A filter screen 24 is detachably mounted on the filter screen mounting frame 10. A cleaning structure is installed on one side of the filter screen mounting frame 10, and a plate-like component for adjustable ventilation is installed on the other side of the filter screen mounting frame 10. The filter screen mounting frame 10 reciprocally swings within a set angle range through the cooperation of gravity and the plate-like component for adjustable ventilation. The cleaning structure performs periodic sweeping work on the filter screen 24 during the reciprocating swing of the filter screen mounting frame 10. Two positioning blocks 26 are respectively fixed on the inner arc surfaces on both sides of the box body 1. Control switches 25 are respectively installed on the two positioning blocks 26. The control switch 25 on the lower positioning block 26 can control the retraction of the telescopic end of the electric telescopic rod 17, and the control switch 25 on the upper positioning block 26 can control the extension of the telescopic end of the electric telescopic rod 17.

[0018] The collection box 3 is fixed to the bottom end of the box body 1. The collection box 3 is communicated with the box body 1. An air inlet box 4 is fixedly penetrated through the bottom end of the collection box 3. The air inlet box 4 penetrates through the collection box 3 and extends into the box body 1 to be communicated with it. The exhaust pipe 2 is fixed to the top end of the box body 1. The exhaust pipe 2 is communicated with the box body 1.

[0019] The plate-like component for adjustable ventilation includes mounting plates 12 symmetrically fixed to the top and bottom of the side wall of the filter screen mounting frame 10. A number of second rotating shafts 13 are evenly arranged between the two mounting plates 12. Both ends of the second rotating shaft 13 respectively penetrate through the two mounting plates 12 and are rotatably connected to the contact points through bearings. A wind baffle 14 is fixed to the side of the second rotating shaft 13 facing the filter screen 24. The wind baffle 14 is in contact with the mesh surface of the filter screen 24. A push rod 15 is fixed to the top end of each second rotating shaft 13. An electric telescopic rod 17 is hinged and installed at a vertex on one side of the filter screen mounting frame 10 through a pin shaft. A connecting rod 16 is hinged to the telescopic end of the electric telescopic rod 17 through a pin shaft. Each push rod 15 is hinged to the connecting rod 16 through a pin shaft.

[0020] The filter screen mounting frame 10 is composed of a U-shaped frame 10-1 and a limiting plate 11. The filter screen 24 is inserted into the U-shaped frame 10-1 and is slidably connected thereto. Slots for inserting the two side frames of the filter screen 24 are formed on the inner walls of both sides of the U-shaped frame 10-1. The limiting plate 11 is fixed to the bottom end of the U-shaped frame 10-1 by bolts. The limiting plate 11 limits and fixes the filter screen 24 within the U-shaped frame 10-1. The bottom end of the limiting plate 11 is in sliding contact with the inner arc surface of the box body 1.

[0021] The cleaning structure includes two third rotating shafts 18. Fixing plates 19 are respectively rotatably connected to both ends of the third rotating shafts 18 through bearings. The fixing plates 19 are fixedly installed on the side walls of the U-shaped frame 10-1. The two third rotating shafts 18 are respectively arranged at the upper end and the lower end of the filter screen 24. A rubber wheel 22 is fixedly sleeved in the middle of the third rotating shaft 18 at the lower end. The rubber wheel 22 is in contact with the inner arc surface of the box body 1. The two third rotating shafts 18 are connected by two belts 21 in transmission. The two belts 21 are symmetrically arranged on both sides of the rubber wheel 22. A plurality of cross plates 23 are fixed to the side of the two belts 21 facing the filter screen 24. Brushes 20 are fixed to the side of the cross plates 23 facing the filter screen 24.

[0022] A flow dividing plate 8 is fixed to the bottom end of the first sealing plate 7. The flow dividing plate 8 is used for evenly distributing the air flow to the two filter screen mounting frames 10 on both sides.

[0023] Box doors 27 are hinged on both sides of the collection box 3.

[0024] Two operation openings are symmetrically formed at the bottom of the box body 1. A second sealing plate 5 is inserted and installed in each operation opening. Connecting plates 6 are evenly fixed to the bottom surface of the second sealing plate 5. The connecting plates 6 are fixedly connected to the box body 1 by bolts.

[0025] The control switch 25 and the electric telescopic rod 17 are both electrically connected to an external power supply through wires. The control switch 25 is electrically connected to the electric telescopic rod 17 through wires.

[0026] Working principle: When the present invention is in use, the bottom of the air inlet box 4 is connected to the air outlet of the fan. In this way, the external polluted air is discharged into the air inlet box 4 by the fan. The air entering the air inlet box 4 is evenly blown towards the two filter mounting frames 10 in the box body 1 under the action of the flow dividing plate 8. After being filtered by the filter screen 24 on the filter mounting frame 10, the air is discharged from the exhaust pipe 2. During this process, since most areas of the filter screen 24 are blocked by the wind baffle 14, the ventilation area of the filter screen 24 is reduced, and the filter screen 24 is blown. At this time, the filter screen 24 drives the filter mounting frame 10 to rotate upward with the first rotating shaft 9 as the axis. When the filter mounting frame 10 touches the control switch 25 at the upper part, the telescopic end of the electric telescopic rod 17 extends. The telescopic end of the electric telescopic rod 17 synchronously pushes a plurality of push rods 15 through the connecting rod 16, causing the second rotating shaft 13 to rotate 90 degrees. At this time, the wind baffle 14 rotates with the second rotating shaft 13, and the wind baffle 14 no longer obstructs the ventilation of the filter screen 24. At this time, the ventilation area of the filter screen 24 increases, the filter screen 24 is no longer blown, and the filter mounting frame 10 and the filter screen 24 fall back to their original positions under their own gravity. At this time, the control switch 25 at the lower part is pressed by the rubber wheel 22, and the telescopic end of the electric telescopic rod 17 retracts. When the telescopic end of the electric telescopic rod 17 retracts, it pulls the push rod 15 through the connecting rod 16, causing the second rotating shaft 13 and the wind baffle 14 to rotate 90 degrees in the reverse direction. At this time, the wind baffle 14 blocks the filter screen 24 again to reduce its ventilation area. In this way, the filter mounting frame 10 and the filter screen 24 swing back and forth between the two control switches 25. During the reciprocating swing of the filter mounting frame 10, the rubber wheel 22 drives the belt 21 to reciprocate back and forth. During the transmission of the belt 21, the filter screen 24 is swept back and forth by the brush 20, thereby achieving the purpose of automatically cleaning the filter screen 24. The particulate matter swept off falls into the collection box 3, and the particulate matter falling into the collection box 3 can be cleaned through the box door 27. When the filter screen 24 needs to be replaced, stop the operation of the fan, then open the second sealing plate 5, remove the limiting plate 11 from the bottom of the U-shaped frame 10-1 through the operation port, then remove the filter screen 24 in the U-shaped frame 10-1 through the operation port, insert the new filter screen 24 into the U-shaped frame 10-1 through the operation port and fix it in the U-shaped frame 10-1 through the limiting plate 11, and finally fix and insert the second sealing plate 5 into the operation port to complete the replacement process of the filter screen 24. Therefore, the present device also has the advantage of conveniently replacing the filter screen 24.

[0027] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A filter for air pollution control, comprising a housing (1), a collecting box (3) and an exhaust pipe (2), characterized in that; The inner walls on both sides of the box body (1) are in an arc shape. Two first rotating shafts (9) are symmetrically arranged in the box body (1). The axis centers of the two first rotating shafts (9) are respectively consistent with the axis centers of the arc-shaped surfaces of the inner walls on both sides of the box body (1). Both ends of the first rotating shaft (9) are rotatably connected to the inner wall of the box body (1) through bearings. A first blocking plate (7) is fitted between the two first rotating shafts (9). Both ends of the first blocking plate (7) are fixed to the inner wall of the box body (1). Filter mounting frames (10) are respectively fixed to the bottom ends of the two first rotating shafts (9). The bottoms of the two filter mounting frames (10) are respectively connected to the box body (1). The inner arc surfaces on both sides are arranged to slide in close contact, and the end surfaces of both ends of the filter mounting frame (10) are arranged to slide in close contact with the inner wall of the box body (1). The filter mounting frame (10) is detachably mounted with a filter (24). A cleaning structure is mounted on one side of the filter mounting frame (10), and a plate-shaped component with adjustable ventilation is mounted on the other side of the filter mounting frame (10). The filter mounting frame (10) achieves reciprocating swing within a set angle range by cooperating with the plate-shaped component with adjustable ventilation through the action of gravity, and the cleaning structure periodically sweeps the filter (24) during the reciprocating swing of the filter mounting frame (10).

2. The filter for air pollution control according to claim 1, characterized in that: The collecting box (3) is fixed at the bottom end of the box body (1), the collecting box (3) is in communication with the box body (1), an air intake box (4) is fixed through the bottom end of the collecting box (3), the air intake box (4) penetrates the collecting box (3) and extends into the box body (1) to be in communication with the collecting box (3), the exhaust pipe (2) is fixed at the top end of the box body (1), and the exhaust pipe (2) is in communication with the box body (1).

3. The filter for air pollution control according to claim 1, characterized in that: The plate-shaped component for adjustable ventilation comprises a mounting plate (12) symmetrically fixed on the top and bottom of the side wall of the filter mounting frame (10), a plurality of second rotating shafts (13) are evenly arranged between the two mounting plates (12), the two ends of the second rotating shaft (13) respectively penetrate the two mounting plates (12) and are rotatably connected to the two mounting plates (12) at the contact points thereof via bearings, a windshield (14) is fixed on the side of the second rotating shaft (13) facing the filter (24), the windshield (14) is in contact with the mesh surface of the filter (24), a push-pull rod (15) is fixed on the top end of each second rotating shaft (13), an electric telescopic rod (17) is hingedly mounted at the top corner of one side of the filter mounting frame (10) via a pin, a connecting rod (16) is hingedly connected to the telescopic end of the electric telescopic rod (17) via a pin, and each of the push-pull rods (15) is hingedly connected to the connecting rod (16) via a pin.

4. The filter for air pollution control according to claim 3, characterized in that: Two positioning blocks (26) are fixed on the inner arc surfaces on both sides of the box body (1), and the filter mounting frame (10) swings between the two positioning blocks (26). The two positioning blocks (26) are respectively installed with control switches (25), wherein the control switch (25) on the positioning block (26) at the lower end can control the telescopic end of the electric telescopic rod (17) to retract, and the control switch (25) on the positioning block (26) at the upper end can control the telescopic end of the electric telescopic rod (17) to extend.

5. The filter for air pollution control according to claim 1, characterized in that: The filter screen mounting frame (10) is composed of a U-shaped frame (10-1) and a limiting plate (11); the filter screen (24) is inserted into the U-shaped frame (10-1) and is slidably connected thereto; slots for inserting the side frames of the filter screen (24) are provided on the inner walls of both sides of the U-shaped frame (10-1); the limiting plate (11) is fixed to the bottom end of the U-shaped frame (10-1) by bolts; the limiting plate (11) limits and fixes the filter screen (24) in the U-shaped frame (10-1); and the bottom end of the limiting plate (11) is slidably arranged in contact with the inner arc surface of the box body (1).

6. The filter for air pollution control according to claim 1, characterized in that: The cleaning structure comprises two third rotating shafts (18), both ends of the third rotating shafts (18) are rotatably connected to fixed plates (19) via bearings, the fixed plates (19) are fixedly mounted on the side wall of the U-shaped frame (10-1), the two third rotating shafts (18) are respectively arranged at the upper end and the lower end of the filter screen (24), a rubber wheel (22) is fixedly sleeved on the middle part of the third rotating shaft (18) at the lower end, the rubber wheel (22) is arranged to fit the inner arc surface of the box body (1), the two third rotating shafts (18) are connected by two belts (21), the two belts (21) are symmetrically arranged on both sides of the rubber wheel (22), a plurality of transverse plates (23) are fixed on the side of the two belts (21) facing the filter screen (24), and a brush (20) is fixed on the side of the transverse plate (23) facing the filter screen (24).

7. The filter for air pollution control according to claim 1, characterized in that: A diverter plate (8) is fixed to the bottom end of the first blocking plate (7).

8. The filter for air pollution control according to claim 2, characterized in that: Box doors (27) are hingedly provided on both sides of the collection box (3).

9. The filter for air pollution control according to claim 1, characterized in that: The bottom of the box body (1) is symmetrically provided with two operating openings, each of which is inserted with a second blocking plate (5), and the bottom surface of the second blocking plate (5) is evenly fixed with a connecting plate (6), and the connecting plate (6) is fixedly connected to the box body (1) by bolts.

10. The filter for air pollution control according to claim 4, characterized in that: The control switch (25) and the electric telescopic rod (17) are both electrically connected to an external power source via a wire, and the control switch (25) and the electric telescopic rod (17) are electrically connected via a wire.

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