Environment-friendly dust removal device and dust removal method thereof

Abstract

The invention discloses an environment-friendly dust removal device and a dust removal method thereof, and relates to the technical field of dust removal, the environment-friendly dust removal device comprises a dust remover main body, a tangential flow replacement part is arranged between a first blocking pipe and a second blocking pipe, and the first blocking pipe and the second blocking pipe are connected with a positioning box through the tangential flow replacement part. According to the invention, a tangential flow replacement part is arranged, and a moving pin is inserted into a locking hole under the extrusion action of a convex part of a cam, so that a cover plate cannot be taken down from the top of a positioning box under the condition that a second blocking pipe is ventilated, and the condition that a filter plate is wrongly replaced when being replaced and mounted is prevented; when the filter plate on the inner side of the positioning box is replaced, a brand new filter plate is installed in the positioning box on one side of the first blocking pipe, an L-shaped magnetic suction plate and a first valve plate are shifted to block the second blocking pipe, a second valve plate loses blocking of the first blocking pipe, shutdown treatment is not needed in the process, operation is easy, and meanwhile the dust removal efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of dust removal, and specifically to an environmental protection dust removal device and a dust removal method thereof. Background Art

[0002] A dust removal device, commonly known as a dust collector, is a device for removing or reducing the fly ash content in flue gas. Among them, the flue gas in the air is extracted by a fan, and then the fine particles in the air are filtered through a filter plate, and then the filtered air is discharged by the fan.

[0003] After the dust removal equipment is used for a period of time, its filter plate will be blocked. At this time, the amount of air passing through the filter plate will be reduced. In this way, the staff needs to replace the filter plate. And when replacing, the dust removal device needs to be shut down, and during this process, the air cannot be dust-removed, which will affect the dust removal efficiency. Summary of the Invention

[0004] The purpose of the present invention is to provide an environmental protection dust removal device and a dust removal method thereof to solve the problem that it is inconvenient to smoothly replace the filter plate in the dust removal equipment.

[0005] To achieve the above purpose, the present invention provides the following technical solution: An environmental protection dust removal device includes a dust collector main body. One end of the dust collector main body is provided with an exhaust port, and the other end of the dust collector main body away from the exhaust port is provided with an air inlet pipe. The end of the air inlet pipe away from the dust collector main body is rotatably connected to a shunt pipe. The two ends of the shunt pipe are respectively provided with a first barrier pipe and a second barrier pipe. A tangential flow replacement part is arranged between the first barrier pipe and the second barrier pipe. Both the first barrier pipe and the second barrier pipe are connected to a positioning box through the tangential flow replacement part. One end of the positioning box is provided with an extended swing part. The positioning box is connected to an air collecting hood through the extended swing part. The top of the positioning box is provided with a cover plate. The bottom of the cover plate is provided with a filter plate located inside the positioning box. The inner wall of the air inlet pipe is provided with a gas blocking control unit connected to the extended swing part.

[0006] As a further solution of the present invention: The tangential flow replacement part includes rectangular positioning rods installed on both sides of the cover plate and slidably connected to the positioning box. Locking holes are provided on the rectangular positioning rods. A rotating connecting shaft passing through the first barrier tube and the second barrier tube is arranged between the second barrier tube and the first barrier tube. A first valve plate located inside the second barrier tube is arranged on the rotating connecting shaft. A second valve plate located inside the first barrier tube is arranged on the rotating connecting shaft. An L-shaped magnetic attraction plate located between the second barrier tube and the first barrier tube is arranged on the rotating connecting shaft. A positioning iron plate arranged side by side with the rotating connecting shaft is installed between the second barrier tube and the first barrier tube. A cam is installed on the outer wall of the rotating connecting shaft. An action pin is inserted into one end of the positioning box close to the second barrier tube. A second return spring is arranged between the action pin and the positioning box.

[0007] As a further solution of the present invention: The first valve plate and the second valve plate are arranged in a crosswise staggered manner. Cams are arranged on both sides of the first valve plate and both sides of the second valve plate on the rotating connecting shaft, and the included angle between the cams on both sides of the first valve plate and the cams on both sides of the second valve plate is 90 degrees.

[0008] As a further solution of the present invention: The extended swing positioning part includes a large connecting frame installed at one end of the positioning box away from the second barrier tube. A bellows is connected to the inner side of the large connecting frame. One end of the bellows is connected to an air collecting hood. A small connecting frame rotatably connected to the outer wall of the air collecting hood is arranged on one side of the air collecting hood. A third driving spur gear is arranged on one side of the small connecting frame. A shifting rack meshing with the third driving spur gear is slidably connected to one side of the large connecting frame. A block is installed on the side of the shifting rack away from the third driving spur gear. A guiding connecting groove is opened on the side of the block away from the shifting rack. A shifting pin is slidably connected to the block through the guiding connecting groove. A turntable is installed at one end of the shifting pin. An extension rod rotatably connected to the large connecting frame is installed at one end of the turntable. A second driving spur gear is arranged at one end of the extension rod. A positioning toothed ring meshing with the second driving spur gear is installed on the outer wall of the dust collector main body. A rotating gear ring is installed on the outer wall of one end of the shunt pipe. A motor is installed on the outer wall of the dust collector main body below the air inlet pipe. The output end of the motor is connected to a first driving spur gear meshing with the rotating gear ring.

[0009] As a further solution of the present invention: The center of the shifting pin and the center of the turntable are in a misaligned state, and the inner wall width of the guiding connecting groove is equal to the diameter of the shifting pin.

[0010] As a further solution of the present invention: The center of the turntable and the center of the extension rod are coaxial, and the center of the positioning toothed ring and the center of the air inlet pipe are coaxial.

[0011] As a further solution of the present invention: The air blocking control unit includes a snap ring installed on the inner wall of the intake pipe. A guiding insertion rod is inserted into the snap ring. A gas blocking plate is installed at one end of the guiding insertion rod away from the shunt pipe. A first return spring connected to the guiding insertion rod is arranged on one side of the snap ring away from the gas blocking plate. An inner wall of the intake pipe is provided with a connection chamber on one side of the snap ring. An elastic piece is installed on the inner wall of the connection chamber. A positioning ring is arranged on the inner wall of the connection chamber on one side of the elastic piece. A second contact piece is installed on one side of the positioning ring close to the elastic piece. A guiding rod extending outside the connection chamber is inserted into the connection chamber. A first contact piece located between the elastic piece and the second contact piece is arranged at one end of the guiding rod. A pressing plate is arranged at one end of the guiding insertion rod close to the connection chamber.

[0012] As a further solution of the present invention: The first contact piece is electrically connected to the motor through a wire, and the second contact piece is electrically connected to an external power supply through a wire.

[0013] As a further solution of the present invention: The diameter of the gas blocking plate is larger than the inner diameter of the snap ring and smaller than the outer diameter of the snap ring.

[0014] The present invention also discloses an environmental protection dust removal method, which adopts the above-mentioned environmental protection dust removal device, and includes the following steps: S1: Through the operation of the fan inside the dust collector main body, one end of the air collecting hood is in a negative pressure state. At this time, the surrounding air will enter the air collecting hood under the operation of the dust collector main body. At this time, the second blocking pipe and the shunt pipe are in a communicating state. When the air passes through the positioning box, it will pass through the filter plate to filter the air, so as to achieve dust removal of the air. S2: The dust-removed air will pass through the shunt pipe, the intake pipe, the dust collector main body and finally be discharged from the exhaust port. At the same time, the air collecting hood will extract air at different positions under the operation of the expansion and positioning member. S3: As the equipment is used, a large amount of dust will adhere to the surface of the filter plate. At this time, the amount of air entering the dust collector main body will decrease. As the dust adhering to the surface of the filter plate increases, the expansion and positioning member will stop operating through the air blocking control unit at this time. S4: Open the top of the positioning box at one end of the first blocking pipe, install a new filter plate at the bottom of the cover plate and insert it into the positioning box at one end of the first blocking pipe. Operate the cross-flow replacement member to close the second blocking pipe and connect the first blocking pipe to the intake pipe. At this time, the outside air will enter the intake pipe through the first blocking pipe, and then the filter plate at one end of the second blocking pipe can be removed for replacement.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. By setting a cross-flow replacement part, when external air enters the inside of the intake pipe through the second barrier pipe, the movable pin will be inserted into the locking hole under the extrusion of the cam protrusion, so that the cover plate cannot be removed from the top of the positioning box when the second barrier pipe is ventilated, thus preventing the wrong replacement during the replacement and installation of the filter plate. When replacing the filter plate inside the positioning box, install a new filter plate in the positioning box on one side of the first barrier pipe, and then toggle the L-shaped magnetic attraction plate. The first valve plate seals the second barrier pipe, and the second valve plate loses the seal of the first barrier pipe. In this process, there is no need to shut down the machine, the operation is simple, and at the same time, the dust removal efficiency is improved; 2. By setting an extended swing position part, when the motor operates, the shunt pipe is driven to rotate through the first transmission spur gear and the rotating gear ring, so that the air collection cover rotates along the center of the intake pipe. In this process, when the second transmission spur gear rotates along the positioning gear ring, it rotates itself. At this time, the extension rod will drive the turntable to rotate. When the turntable rotates, it will drive the clamping block to move up and down reciprocally through the shifting pin and the guiding connecting groove, so that the shifting rack moves up and down reciprocally with the clamping block, so that the third transmission spur gear drives the small connecting frame to swing reciprocally, thus increasing the dust removal range of the equipment and further enhancing the dust removal effect of the equipment; 3. By setting an air-blocking control unit, with the use of the equipment, a large amount of dust will adhere to the surface of the filter plate. At this time, some filter holes on the filter plate will be blocked, so that the amount of air entering the inside of the intake pipe will decrease. At this time, the thrust received by the air-blocking plate will decrease, so that the air-blocking plate moves towards the snap ring under the elastic restoring force of the first return spring. As more filter holes on the filter plate are blocked, the pressing plate will apply a thrust to the guiding rod, so that the first contact piece is separated from the second contact piece, so that the motor stops operating, so that the air collection cover stops rotating. At this time, the filter plate can be replaced, so that it can be quickly judged whether the filter plate needs to be replaced. Description of the Drawings

[0016] Figure 1 It is a schematic structural diagram of the whole invention; Figure 2 It is a schematic connection diagram of the intake pipe and the shunt pipe of the invention; Figure 3 It is a schematic internal structure diagram of the intake pipe of the invention; Figure 4 It is of the invention Figure 3 The enlarged view at A in; Figure 5 It is a schematic connection diagram of the intake pipe and the air collection cover of the invention; Figure 6 It is a schematic connection diagram of the first barrier pipe and the second barrier pipe of the invention; Figure 7 Schematic diagram of the internal structure of the positioning box of the present invention; Figure 8 Schematic diagram of the connection between the first valve plate and the second valve plate of the present invention; Figure 9 Schematic diagram of the connection between the air collecting hood and the large connecting frame of the present invention; Figure 10 Schematic diagram of the connection between the turntable and the shifting rack of the present invention.

[0017] In the figure: 1, dust collector main body; 2, exhaust port; 3, motor; 4, first driving spur gear; 5, intake pipe; 6, shunt pipe; 7, first barrier pipe; 8, second barrier pipe; 9, positioning box; 10, bellows; 11, air collecting hood; 12, large connecting frame; 13, positioning tooth ring; 14, extension rod; 15, second driving spur gear; 16, rotating gear ring; 17, air blocking plate; 18, first return spring; 19, snap ring; 20, guiding insertion rod; 21, L-shaped magnetic attraction plate; 22, elastic piece; 23, first contact piece; 24, positioning ring; 25, guiding rod; 26, pressing plate; 27, second contact piece; 28, connecting bin; 29, cover plate; 30, rectangular positioning rod; 31, positioning iron plate; 32, rotating coupling; 33, locking hole; 34, action pin; 35, second return spring; 36, cam; 37, first valve plate; 38, second valve plate; 39, filter plate; 40, shifting pin; 41, turntable; 42, shifting rack; 43, third driving spur gear; 44, small connecting frame; 45, guiding connecting groove; 46, clamping block. Detailed implementation manners

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "connected", "set" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations. The embodiments of the present invention will be described below according to its overall structure.

[0020] Please refer to Figures 1 - 10 , in an embodiment of the present invention, an environmental protection dust removal device includes a dust collector main body 1. An exhaust port 2 is installed at one end of the dust collector main body 1. An air inlet pipe 5 is installed at the end of the dust collector main body 1 away from the exhaust port 2. The end of the air inlet pipe 5 away from the dust collector main body 1 is rotatably connected to a flow dividing pipe 6. First barrier pipes 7 and second barrier pipes 8 are respectively installed at both ends of the flow dividing pipe 6. A tangential flow replacement member is arranged between the first barrier pipe 7 and the second barrier pipe 8. Both the first barrier pipe 7 and the second barrier pipe 8 are connected to a positioning box 9 through the tangential flow replacement member. An extended swing positioning member is arranged at one end of the positioning box 9. The positioning box 9 is connected to a gas collection hood 11 through the extended swing positioning member. A cover plate 29 is installed on the top of the positioning box 9. A filter plate 39 located inside the positioning box 9 is arranged at the bottom of the cover plate 29. A gas blocking control unit connected to the extended swing positioning member is arranged on the inner wall of the air inlet pipe 5.

[0021] In this embodiment: The operation of the internal fan of the dust collector main body 1 makes one end of the air collecting hood 11 in a negative pressure state. At this time, the surrounding air will enter the inside of the air collecting hood 11 under the operation of the dust collector main body 1. At this time, the second blocking pipe 8 and the shunt pipe 6 are in a communicating state. When the air passes through the positioning box 9, the air will be filtered through the filter plate 39 to achieve dust removal of the air. The dust-removed air will pass through the shunt pipe 6, the air inlet pipe 5, the dust collector main body 1 and finally be discharged from the exhaust port 2. At the same time, the air collecting hood 11 will extract air at different positions under the operation of the expansion and positioning member. As the equipment is used, a large amount of dust will adhere to the surface of the filter plate 39. At this time, the amount of air entering the dust collector main body 1 will decrease. As the dust adhering to the surface of the filter plate 39 increases, the expansion and positioning member will stop operating through the air blocking control unit. Then, open the top of the positioning box 9 at one end of the first blocking pipe 7, install a new filter plate 39 at the bottom of the cover plate 29 and insert it into the positioning box 9 at one end of the first blocking pipe 7. Operate the flow switching and replacement member to close the second blocking pipe 8 and make the first blocking pipe 7 communicate with the air inlet pipe 5. At this time, the outside air will enter the air inlet pipe 5 through the first blocking pipe 7. Then, the filter plate 39 at one end of the second blocking pipe 8 can be removed and replaced. The whole process does not require the dust collector main body 1 to be shut down, which further improves the dust removal efficiency of the equipment.

[0022] Please refer specifically to Figure 1 , Figure 2 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , the flow switching and replacement member includes rectangular positioning rods 30 installed on both sides of the cover plate 29 and slidably connected to the positioning box 9. Locking holes 33 are provided on the rectangular positioning rods 30. A rotating connecting shaft 32 passing through the first blocking pipe 7 and the second blocking pipe 8 is arranged between the second blocking pipe 8 and the first blocking pipe 7. A first valve plate 37 located inside the second blocking pipe 8 is arranged on the rotating connecting shaft 32. A second valve plate 38 located inside the first blocking pipe 7 is arranged on the rotating connecting shaft 32. An L-shaped magnetic attraction plate 21 located between the second blocking pipe 8 and the first blocking pipe 7 is arranged on the rotating connecting shaft 32. A positioning iron plate 31 arranged side by side with the rotating connecting shaft 32 is installed between the second blocking pipe 8 and the first blocking pipe 7. A cam 36 is installed on the outer wall of the rotating connecting shaft 32. An action pin 34 is inserted into one end of the positioning box 9 close to the second blocking pipe 8. A second return spring 35 is arranged between the action pin 34 and the positioning box 9.

[0023] In this embodiment: when outside air enters the air intake pipe 5 through the second barrier tube 8, the protrusions of the cams 36 on both sides of the first valve plate 37 are facing the positioning box 9. At this time, the action pin 34 will be inserted into the locking hole 33 under the squeezing action of the protrusions of the cam 36, so that the second barrier tube 8 cannot be removed from the top of the positioning box 9 when it is in ventilation, so as to prevent the wrong replacement when the filter plate 39 is replaced and installed. At the same time, the first valve plate 37 is in a horizontal state and the second valve plate 38 is in a vertical state, so that the second valve plate 38 blocks the first barrier tube 7. When replacing the filter plate 39 inside the positioning box 9, the cover plate 29 on the positioning box 9 at one end of the first barrier tube 7 is removed, and then a new filter plate 39 is installed at the bottom of the cover plate 29 and inserted into the positioning box 9, and then the L-shaped magnetic plate 21 is toggled. When the filter plate 39 is removed from the filter housing 31, the filter 39 can be removed from the filter housing 31 by pressing the cam 36 on both sides of the filter housing 31.

[0024] Please refer to Figure 6 , Figure 8 The first valve plate 37 and the second valve plate 38 are arranged in a cross shape, and cams 36 are arranged on both sides of the first valve plate 37 and both sides of the second valve plate 38 on the rotating shaft 32, and the angle between the cams 36 on both sides of the first valve plate 37 and the cams 36 on both sides of the second valve plate 38 is ninety degrees.

[0025] In this embodiment, by providing this structure, when the second valve plate 38 or the first valve plate 37 is rotated to a vertical state, the corresponding cam 36 will insert the action pin 34 into the locking hole 33 .

[0026] Please refer to Figure 1 , Figure 2 , Figure 5 , Figure 9 , Figure 10, the extended positioning member includes a large connecting frame 12 installed at one end of the positioning box 9 away from the second blocking pipe 8. A corrugated pipe 10 is connected to the inner side of the large connecting frame 12. One end of the corrugated pipe 10 is connected to a gas collecting hood 11. An outer wall of the gas collecting hood 11 is provided with a small connecting frame 44 rotatably connected to the large connecting frame 12. A third driving spur gear 43 is arranged on one side of the small connecting frame 44. A shifting rack 42 meshing with the third driving spur gear 43 is slidably connected to one side of the large connecting frame 12. A clamping block 46 is installed on a side of the shifting rack 42 away from the third driving spur gear 43. A guiding connecting groove 45 is formed on a side of the clamping block 46 away from the shifting rack 42. A shifting pin 40 is slidably connected to the clamping block 46 through the guiding connecting groove 45. A turntable 41 is installed at one end of the shifting pin 40. An extension rod 14 rotatably connected to the large connecting frame 12 is installed at one end of the turntable 41. A second driving spur gear 15 is arranged at one end of the extension rod 14. A positioning tooth ring 13 meshing with the second driving spur gear 15 is installed on an outer wall of the dust collector main body 1. A rotating gear ring 16 is installed on an outer wall of one end of the shunt pipe 6. A motor 3 located below the air inlet pipe 5 is installed on an outer wall of the dust collector main body 1. An output end of the motor 3 is connected to a first driving spur gear 4 meshing with the rotating gear ring 16.

[0027] In this embodiment: When the motor 3 operates, the shunt pipe 6 is driven to rotate through the first driving spur gear 4 and the rotating gear ring 16, so as to make the gas collecting hood 11 rotate along the center of the air inlet pipe 5. During this process, when the second driving spur gear 15 rotates along the positioning tooth ring 13, it rotates itself. At this time, the extension rod 14 will drive the turntable 41 to rotate. When the turntable 41 rotates, it will drive the clamping block 46 to move up and down reciprocally through the shifting pin 40 and the guiding connecting groove 45, so as to make the shifting rack 42 move up and down reciprocally with the clamping block 46, thereby enabling the third driving spur gear 43 to drive the small connecting frame 44 to swing reciprocally. In this way, the dust removal range of the device can be increased, and the dust removal effect of the device is further enhanced.

[0028] Please refer specifically to Figure 10 , the center of the shifting pin 40 is in a misaligned state with the center of the turntable 41, and the inner wall width of the guiding connecting groove 45 is equal to the diameter of the shifting pin 40.

[0029] In this embodiment: By setting this structure, when the turntable 41 rotates, the shifting pin 40 slides inside the guiding connecting groove 45, and at the same time drives the clamping block 46 to move reciprocally, so as to realize the reciprocal swing of the small connecting frame 44.

[0030] Please refer specifically to Figure 1 , Figure 10 , the center of the turntable 41 is coaxial with the center of the extension rod 14, and the center of the positioning tooth ring 13 is coaxial with the center of the air inlet pipe 5.

[0031] In this embodiment: By setting this structure, the second transmission spur gear 15 rotates around the center of the positioning tooth ring 13 while revolving, thereby improving the stability of the swing of the air collecting hood 11.

[0032] Please refer particularly to Figure 3 , Figure 4 , the air blocking control unit includes a snap ring 19 installed on the inner wall of the intake pipe 5, a guiding insertion rod 20 is inserted into the snap ring 19, an air blocking plate 17 is installed at one end of the guiding insertion rod 20 away from the shunt pipe 6, a first return spring 18 connected to the guiding insertion rod 20 is arranged on one side of the snap ring 19 away from the air blocking plate 17, a connection chamber 28 is arranged on the inner wall of the intake pipe 5 on one side of the snap ring 19, an elastic piece 22 is installed on the inner wall of the connection chamber 28, a positioning ring 24 is arranged on the inner wall of the connection chamber 28 on one side of the elastic piece 22, a second contact piece 27 is installed on the side of the positioning ring 24 close to the elastic piece 22, a guiding rod 25 extending outside the connection chamber 28 is inserted into the connection chamber 28, a first contact piece 23 located between the elastic piece 22 and the second contact piece 27 is arranged at one end of the guiding rod 25, and a pressing plate 26 is arranged at one end of the guiding insertion rod 20 close to the connection chamber 28.

[0033] In this embodiment: When the dust collector main body 1 operates, the air blocking plate 17 will move towards the dust collector main body 1 under the push of the air pressure and the airflow discharged from the shunt pipe 6 into the intake pipe 5. At this time, the first return spring 18 is in a contracted state, and at the same time, the first contact piece 23 contacts the second contact piece 27 to make the motor 3 operate. As the equipment is used, a large amount of dust will adhere to the surface of the filter plate 39. At this time, some filter holes on the filter plate 39 will be blocked, so that the amount of air entering the intake pipe 5 will decrease. At this time, the thrust received by the air blocking plate 17 will decrease, so that the air blocking plate 17 moves towards the snap ring 19 under the elastic restoring force of the first return spring 18. As more filter holes on the filter plate 39 are blocked, the pressing plate 26 will apply a thrust to the guiding rod 25, so as to separate the first contact piece 23 from the second contact piece 27, so that the motor 3 stops operating. In this way, the air collecting hood 11 can stop rotating, and at this time, the filter plate 39 can be replaced, so that it can be quickly judged whether the filter plate 39 needs to be replaced.

[0034] Please refer particularly to Figure 1 , Figure 4 , the first contact piece 23 is electrically connected to the motor 3 through a wire, and the second contact piece 27 is electrically connected to an external power supply through a wire.

[0035] In this embodiment: By setting this structure, the motor 3 operates when the first contact piece 23 contacts the second contact piece 27, thereby controlling the operation timing of the motor 3.

[0036] Please refer particularly to Figure 3, the diameter of the air-blocking plate 17 is greater than the inner diameter of the snap ring 19 and less than the outer diameter of the snap ring 19.

[0037] In this embodiment: by setting this structure, the air passing through the snap ring 19 applies a thrust force to the air-blocking plate 17, and at the same time, it prevents the air-blocking plate 17 from blocking the snap ring 19 when the first return spring 18 restores.

[0038] The following combines the above-mentioned environmental protection dust removal device to provide an environmental protection dust removal method, which specifically includes the following steps: S1: Through the operation of the internal fan of the dust collector main body 1, one end of the air collection hood 11 is in a negative pressure state. At this time, the surrounding air will enter the inside of the air collection hood 11 under the operation of the dust collector main body 1. At this time, the second blocking pipe 8 and the shunt pipe 6 are in a communicating state. When the air passes through the positioning box 9, it will pass through the filter plate 39 to filter the air, so as to realize the dust removal of the air; S2: The dust-removed air will pass through the shunt pipe 6, the intake pipe 5, the dust collector main body 1 and finally be discharged from the exhaust port 2. When the motor 3 operates, the shunt pipe 6 is driven to rotate through the first transmission spur gear 4 and the rotating gear ring 16, so as to make the air collection hood 11 rotate along the center of the intake pipe 5. During this process, the second transmission spur gear 15 rotates along the positioning gear ring 13 and rotates itself. At this time, the extension rod 14 will drive the turntable 41 to rotate. When the turntable 41 rotates, it will drive the clamping block 46 to move up and down reciprocally through the shifting pin 40 and the guiding connecting groove 45, so as to make the shifting rack 42 move up and down reciprocally with the clamping block 46, so that the third transmission spur gear 43 drives the small connecting frame 44 to swing reciprocally, so as to increase the dust removal range of the equipment and further enhance the dust removal effect of the equipment; S3: When the dust collector main body 1 operates, the air-blocking plate 17 will move towards the dust collector main body 1 under the push of air pressure and the air flow discharged from the shunt pipe 6 into the intake pipe 5. At this time, the first return spring 18 is in a contracted state. At the same time, the first contact piece 23 contacts the second contact piece 27 to make the motor 3 energize and operate. As the equipment is used, a large amount of dust will adhere to the surface of the filter plate 39. At this time, some filter holes on the filter plate 39 will be blocked, so that the amount of air entering the intake pipe 5 will decrease. At this time, the thrust force received by the air-blocking plate 17 will decrease, so that the air-blocking plate 17 moves towards the snap ring 19 under the action of the elastic restoring force of the first return spring 18. As more filter holes on the filter plate 39 are blocked, the pressure plate 26 will apply a thrust force to the guiding rod 25, so as to separate the first contact piece 23 from the second contact piece 27, so that the motor 3 stops operating. In this way, the air collection hood 11 can stop rotating. At this time, the filter plate 39 can be replaced, so as to quickly judge whether the filter plate 39 needs to be replaced; S4: When replacing the filter plate 39 inside the positioning box 9, remove the cover plate 29 on the positioning box 9 at one end of the first barrier pipe 7. Then, install the brand-new filter plate 39 at the bottom of the cover plate 29 and insert it into the positioning box 9. After that, toggle the L-shaped magnetic plate 21. At this time, one side of the L-shaped magnetic plate 21 will separate from the positioning iron plate 31. Meanwhile, the first valve plate 37 and the second valve plate 38 rotate with the rotation of the rotating coupling shaft 32. When the L-shaped magnetic plate 21 rotates 90 degrees, the other side of the L-shaped magnetic plate 21 fits with the positioning iron plate 31. At the same time, the first valve plate 37 blocks the second barrier pipe 8, and the second valve plate 38 loses the blockage of the first barrier pipe 7. Moreover, the convex parts of the cams 36 on both sides of the first valve plate 37 separate from the action pins 34 with the rotation of the rotating coupling shaft 32. Then, the filter plate 39 inside the positioning box 9 at one end of the second barrier pipe 8 can be taken out. At the same time, the cams 36 on both sides of the second valve plate 38 make the action pins 34 inserted into the locking holes 33 through the convex parts to limit the filter plate 39 at one end of the first barrier pipe 7. During this process, there is no need to stop the machine. The operation is simple, and at the same time, the dust removal efficiency is improved.

[0039] The above-mentioned is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.

Claims

1. An environmentally friendly dust removal device, comprising a dust collector body (1), characterized in that: An exhaust port (2) is installed at one end of the dust collector body (1), and an air intake pipe (5) is installed at one end of the dust collector body (1) away from the exhaust port (2). The end of the air intake pipe (5) away from the dust collector body (1) is rotatably connected to a diversion pipe (6). A first barrier pipe (7) and a second barrier pipe (8) are installed at both ends of the diversion pipe (6), respectively. A cutting flow replacement component is provided between the first barrier pipe (7) and the second barrier pipe (8). The first barrier pipe (7) and the second barrier pipe (8) are both connected to a positioning box (9) through the cutting flow replacement component. An extended positioning component is provided at one end of the positioning box (9), and the positioning box (9) is connected to an air collecting hood (11) through the extended positioning component. A cover plate (29) is installed at the top of the positioning box (9), and a filter plate (39) located inside the positioning box (9) is provided at the bottom of the cover plate (29). An air blocking control unit connected to the extended positioning component is provided on the inner wall of the air intake pipe (5).

2. The environmentally friendly dust removal device according to claim 1, characterized in that: The flow-cutting replacement component comprises a rectangular positioning rod (30) mounted on both sides of the cover plate (29) and slidably connected to the positioning box (9), a locking hole (33) being provided on the rectangular positioning rod (30), a rotating shaft (32) penetrating the first barrier tube (7) and the second barrier tube (8) being provided between the second barrier tube (8) and the first barrier tube (7), a first valve plate (37) located inside the second barrier tube (8) being provided on the rotating shaft (32), and a second valve plate (37) located inside the first barrier tube (7) being provided on the rotating shaft (32). The rotating shaft (32) is provided with an L-shaped magnetic plate (21) located between the second barrier tube (8) and the first barrier tube (7); a positioning iron plate (31) arranged side by side with the rotating shaft (32) is installed between the second barrier tube (8) and the first barrier tube (7); a cam (36) is installed on the outer wall of the rotating shaft (32); an action pin (34) is inserted at one end of the positioning box (9) close to the second barrier tube (8); and a second return spring (35) is arranged between the action pin (34) and the positioning box (9).

3. The environmentally friendly dust removal device according to claim 2, characterized in that: The first valve plate (37) and the second valve plate (38) are arranged in a cross-like manner, the rotary coupling (32) is located on both sides of the first valve plate (37), and cams (36) are arranged on both sides of the second valve plate (38), and the angle between the cams (36) on both sides of the first valve plate (37) and the cams (36) on both sides of the second valve plate (38) is ninety degrees.

4. The environmentally friendly dust removal device according to claim 2, characterized in that: The extended positioning member comprises a large connecting frame (12) installed on an end of the positioning box (9) away from the second barrier tube (8); a bellows (10) is connected to the inner side of the large connecting frame (12); one end of the bellows (10) is connected to an air collecting hood (11); a small connecting frame (44) rotatably connected to the large connecting frame (12) is provided on the outer wall of the air collecting hood (11); a third transmission spur gear (43) is provided on one side of the small connecting frame (44); a shifting rack (42) meshing with the third transmission spur gear (43) is slidably connected to one side of the large connecting frame (12); a clamping block (46) is installed on a side of the shifting rack (42) away from the third transmission spur gear (43); a guide is provided on a side of the clamping block (46) away from the shifting rack (42). A guide groove (45), the block (46) is slidably connected to a shift pin (40) via the guide groove (45), one end of the shift pin (40) is mounted with a turntable (41), one end of the turntable (41) is mounted with an extension rod (14) rotatably connected to a large connecting frame (12), one end of the extension rod (14) is provided with a second transmission spur gear (15), an outer wall of the dust collector body (1) is mounted with a positioning gear ring (13) meshing with the second transmission spur gear (15), an outer wall of one end of the diverter pipe (6) is mounted with a rotating gear ring (16), and an outer wall of the dust collector body (1) is mounted with a motor (3) located below the air inlet pipe (5), and an output end of the motor (3) is connected with a first transmission spur gear (4) meshing with the rotating gear ring (16).

5. The environmentally friendly dust removal device according to claim 4, characterized in that: The center of the circle of the shifting pin (40) and the center of the circle of the rotating disk (41) are in a misaligned state, and the inner wall width of the guiding connecting groove (45) is equal to the diameter of the shifting pin (40).

6. The environmentally friendly dust removal device according to claim 4, characterized in that: The center of the rotating disk (41) is coaxial with the center of the extension rod (14), and the center of the positioning gear ring (13) is coaxial with the center of the intake pipe (5).

7. The environmentally friendly dust removal device according to claim 1, characterized in that: The air blocking control unit comprises a clamping ring (19) mounted on the inner wall of the air intake pipe (5), a guide plug rod (20) being inserted into the clamping ring (19), an air blocking plate (17) being mounted on one end of the guide plug rod (20) away from the flow divider (6), a first return spring (18) connected to the guide plug rod (20) being disposed on the side of the clamping ring (19) away from the air blocking plate (17), a connecting chamber (28) being disposed on the inner wall of the air intake pipe (5) on one side of the clamping ring (19), an elastic sheet (22) being mounted on the inner wall of the connecting chamber (28) ), the inner wall of the connection chamber (28) is provided with a positioning ring (24) located on one side of the elastic sheet (22), a second contact sheet (27) is installed on the side of the positioning ring (24) close to the elastic sheet (22), the interior of the connection chamber (28) is plugged with a guide rod (25) extending to the outside of the connection chamber (28), one end of the guide rod (25) is provided with a first contact sheet (23) located between the elastic sheet (22) and the second contact sheet (27), and the end of the guide rod (20) close to the connection chamber (28) is provided with a pressure plate (26).

8. The environmentally friendly dust removal device according to claim 7, characterized in that: The first contact piece (23) is electrically connected to the motor (3) via a wire, and the second contact piece (27) is electrically connected to an external power source via a wire.

9. The environmentally friendly dust removal device according to claim 7, characterized in that: The diameter of the air blocking plate (17) is larger than the diameter of the inner wall of the clamping ring (19) and smaller than the diameter of the outer wall of the clamping ring (19).

10. An environmentally friendly dust removal method, characterized in that: The environmentally friendly dust removal device according to any one of claims 1 to 9 comprises the following steps: S1: The operation of the fan inside the dust collector body (1) causes one end of the air collecting hood (11) to be in a negative pressure state. At this time, the surrounding air will enter the air collecting hood (11) under the operation of the dust collector body (1). At this time, the second barrier pipe (8) and the diversion pipe (6) are in a connected state. When the air passes through the positioning box (9), it will be filtered by the filter plate (39), thereby achieving dust removal of the air; S2: The air after dust removal will pass through the shunt pipe (6), the air intake pipe (5), the dust collector body (1), and finally be discharged from the exhaust port (2). At the same time, the air collecting hood (11) will extract air from different positions under the operation of the extended positioning member; S3: As the device is used, a large amount of dust will adhere to the surface of the filter plate (39), and the amount of air entering the dust collector body (1) will decrease. As the amount of dust adhered to the surface of the filter plate (39) increases, the air blocking control unit stops the operation of the extended positioning member. S4: Open the top of the positioning box (9) at one end of the first barrier tube (7), install a new filter plate (39) on the bottom of the cover plate (29) and insert it into the positioning box (9) at one end of the first barrier tube (7), operate the flow-cutting replacement part to close the second barrier tube (8) and connect the first barrier tube (7) with the air inlet pipe (5), then the outside air will enter the air inlet pipe (5) through the first barrier tube (7), and then the filter plate (39) at one end of the second barrier tube (8) can be removed and replaced.

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