Dedusting and ventilating system for factory building

Abstract

The invention belongs to the technical field of plant dust removal and ventilation, and particularly discloses a plant dust removal and ventilation system which comprises an air inlet filtering unit and an air exhaust dust removal unit, the air inlet filtering unit is installed on the upper portion of a plant, and the air exhaust dust removal unit is installed on the lower portion of the plant; an air outlet of the air inlet filtering unit is connected with an air inlet header pipe; one end, far away from the air inlet filtering unit, of the air inlet header pipe communicates with the interior of the plant; the air inlet filtering unit comprises an air inlet fan and a primary filtering module; the primary filter module comprises a filter cartridge and a filter screen, the inlet end of the filter cartridge is connected with an air outlet of the air inlet fan, and the filter screen is located in the filter cartridge; the outlet end of the filter cartridge is communicated with the interior of the plant; the air exhaust and dust removal unit comprises an air exhaust fan, the air exhaust fan is installed inside or outside the plant, an air inlet of the air exhaust fan is communicated with the inside of the plant, and an air outlet of the air exhaust fan is communicated with the outside of the plant. The risk that equipment makes contact with dust can be reduced, stable operation of the equipment is guaranteed, and the service life of the equipment is prolonged.

Description

Technical Field

[0001] This invention relates to the field of factory dust removal and ventilation technology, specifically to a factory dust removal and ventilation system. Background Technology

[0002] During production and operation in underground factories, the operation of machinery and the processing of materials generate a large amount of dust. Excessive dust can seriously affect the equipment. 1. Heat dissipation issues: Dust easily accumulates on heat dissipation components such as heat sinks and fans, forming an insulation layer that hinders heat dissipation. Continuous high-temperature operation of the equipment will accelerate the aging of internal components, reduce performance, shorten service life, and may even cause automatic shutdown or damage due to overheating.

[0003] 2. Component wear: Dust particles entering the equipment will rub against mechanical parts such as bearings and gears, aggravating wear, affecting the equipment's operating accuracy and stability, increasing the frequency of failures, and raising equipment maintenance costs and downtime.

[0004] 3. Electrical faults: Dust accumulation on circuit boards, electrical contacts, and other parts may alter circuit parameters and cause signal transmission errors; moisture can also easily lead to short circuits, causing equipment damage or even safety accidents.

[0005] 4. Decreased equipment efficiency: Dust clogs the equipment's air filtration system and ventilation ducts, resulting in insufficient airflow, affecting normal equipment operation, increasing energy consumption, and reducing overall operating efficiency. Currently, traditional intake fans have limited filtration capabilities, and exhaust fans rely on a single dust removal method and lack intelligent control, failing to effectively address the harmful effects of dust on equipment. Summary of the Invention

[0006] This invention provides a factory dust removal and ventilation system, which aims to reduce the risk of equipment coming into contact with dust, ensure stable equipment operation, and extend the service life of the equipment.

[0007] The present invention is achieved through the following technical solution: a factory dust removal and ventilation system, comprising an air inlet filtration unit and an air exhaust dust removal unit, wherein the air inlet filtration unit is installed in the upper part of the factory building and the air exhaust dust removal unit is installed in the lower part of the factory building; the air outlet of the air inlet filtration unit is connected to an air inlet main pipe, and the end of the air inlet main pipe away from the air inlet filtration unit is connected to the interior of the factory building. The air intake filtration unit includes an air intake fan and a primary filter module; the primary filter module includes a filter cartridge and a filter screen, the inlet end of the filter cartridge is connected to the air outlet of the air intake fan, and the filter screen is located inside the filter cartridge; the outlet end of the filter cartridge is connected to the interior of the factory building. The exhaust and dust removal unit includes an exhaust fan, which is installed inside or outside the factory building. The air inlet of the exhaust fan is connected to the interior of the factory building, and the air outlet of the exhaust fan is connected to the exterior of the factory building.

[0008] Compared with existing technologies, this solution has the following advantages and beneficial effects: From the perspective of dust source control, the air intake filtration unit is located at the top of the plant. Utilizing a combination of the pre-filter module's screen and filter cartridge, it performs initial filtration of the incoming fresh air, intercepting large dust particles and impurities, thus reducing the initial risk of external dust entering the equipment. The power provided by the intake fan ensures that the filtered clean air is delivered into the plant through the main intake duct, creating a relatively clean air intake environment for the equipment. Regarding dust removal inside the factory, the exhaust and dust removal unit in this solution is installed at the bottom of the factory. Exhaust fans directly discharge dust-laden air from the factory to the outside, creating an air circulation path with air intake at the top and exhaust at the bottom. This layout follows the laws of airflow and effectively removes dust generated or accumulated during equipment operation, preventing dust from settling and accumulating on equipment surfaces and surrounding areas, and reducing the probability of dust coming into contact with mechanical parts and electrical components. Through the dual action of intake air filtration and exhaust air dust removal, the system can continuously reduce the dust concentration in the factory air, reducing the risk of equipment failure caused by dust adhesion and friction, thereby ensuring the stability of equipment operation. At the same time, it reduces the wear and tear on equipment components and the impact on circuit performance caused by dust, slows down the aging of equipment, significantly extends the service life of equipment, reduces maintenance costs and production interruption losses caused by equipment failure, and improves equipment operating efficiency.

[0009] Furthermore, it also includes a dust-shaking mechanism for shaking the filter screen. The dust-shaking mechanism includes a bracket, a fixed cylinder, a rotating plate, a rotating column, a movable plate, a vibrating rod, and a guide cylinder. The bracket is fixed to the top of the filter cylinder, the fixed cylinder is fixedly installed on the top of the bracket, the rotating column is coaxially fixedly connected to the rotating plate, the rotating column is coaxially rotatably connected to the fixed cylinder, and the top end of the rotating column is located above the fixed cylinder. The guide cylinder is fixedly connected to the top of the filter cylinder, and the vibrating rod passes through the top of the filter cylinder and the guide cylinder and rotates with the filter cylinder and the guide cylinder; the top end of the vibrating rod is fixedly connected to the moving plate coaxially, and a spring is sleeved on the outside of the vibrating rod, and the spring is located between the moving plate and the guide cylinder; The bottom end of the rotating plate has multiple driving blocks evenly distributed along its circumference, and the top end of the moving plate has multiple grooves evenly opened along its circumference. The filter screen is inclined. Driving the rotating column to rotate can cause the multiple driving blocks to rotate intermittently in the multiple grooves under the action of the spring, thereby driving the vibrating rod to move vertically back and forth, and causing the bottom end of the vibrating rod to repeatedly strike the filter screen.

[0010] Beneficial effects: The dust-shaking mechanism in this solution can automatically shake and clean the filter screen, preventing clogged mesh on the screen from affecting airflow. When the rotating column rotates, the drive block on the rotating plate intermittently engages with the groove of the moving plate under the action of a spring, causing the bottom of the vibrating rod to repeatedly strike the tilted filter screen. This intermittent striking vibration effectively shakes off the dust adhering to the filter screen surface, preventing dust from continuously accumulating and clogging the screen, thus maintaining the filter screen's permeability and ensuring stable filtration efficiency of the primary filter module for the incoming fresh air. Furthermore, the dust-shaking mechanism in this solution regularly shakes and cleans the filter screen, reducing the erosion and wear caused by long-term dust adhesion. Compared to filters without a dust-shaking mechanism, it eliminates the need for frequent disassembly and replacement, reducing costs associated with frequent filter changes. It also minimizes system downtime due to filter replacements, enhancing the continuous operation of the entire plant's dust removal and ventilation system. Furthermore, the components of the dust-shaking mechanism in this solution work together, using a mechanical transmission method to clean the filter screen. Specifically, by driving the rotating column to rotate, multiple drive blocks at the bottom of the rotating column continuously rotate to the groove and then move past the groove to the top of the moving plate. When the drive block moves to the top of the moving plate, it compresses the spring, causing the moving plate and vibrating rod to move downwards. When the drive block moves to the groove, the spring's reset action drives the moving plate and vibrating rod to move upwards. This vertical reciprocating motion of the vibrating rod achieves the purpose of continuously striking the filter screen. This mechanical transmission structure is not only stable and reliable in operation, but also has excellent compatibility with the overall structure of the air intake filter unit. While achieving efficient cleaning, it will not interfere with the normal filtration operation of the air intake filter unit, thus further enhancing the practicality and ease of maintenance of the air intake filter unit while ensuring the filtration effect.

[0011] Furthermore, the groove is a hemispherical groove, and the driving block is a hemispherical driving block.

[0012] Beneficial effects: The hemispherical groove and the hemispherical drive block work together to make the contact and separation process smoother and more seamless, reducing jamming and wear during movement, and further improving the operational stability and service life of the mechanical transmission structure.

[0013] Furthermore, a support rod is connected to one side of the vibrating rod, the support rod moves synchronously with the vibrating rod, and one end of the support rod can strike the filter screen. A vibrating ball is connected to one end of both the support rod and the vibrating rod.

[0014] Beneficial effects: In this design, a support rod is connected to one side of the vibrating rod. The support rod moves synchronously with the vibrating rod, and one end of the support rod can strike the filter screen. This allows the support rod to simultaneously strike the filter screen while the vibrating rod strikes it, increasing the number of striking points and expanding the striking coverage area. This more comprehensively shakes off dust adhering to different parts of the filter screen, further improving the filter screen cleaning effect. Simultaneously, vibrating balls are connected to one end of both the support rod and the vibrating rod. The placement of the vibrating balls disperses the striking force, preventing direct, hard impacts from the vibrating rod and support rod ends on the filter screen and causing localized damage. This protects the filter screen while ensuring cleaning effectiveness, helping to extend its service life.

[0015] Furthermore, a slag guide groove for collecting the filtered material is provided at the bottom of the filter cylinder and on one side of the filter screen. The slag guide groove is conical, and a slag outlet hole is provided at the bottom of the slag guide groove. A plug is detachably fitted into the slag outlet hole.

[0016] Beneficial effects: In this design, a sludge guide groove is provided at the bottom of the filter cartridge, located on one side of the filter screen, for collecting filtered material. The sludge guide groove is conical; its conical structure utilizes gravity to quickly collect the shaken-off filtered material to the bottom, preventing residue buildup and improving collection efficiency. Simultaneously, a sludge discharge hole is provided at the bottom of the sludge guide groove, with a removable plug. When cleaning the filtered material is required, simply remove the plug, and the collected material at the bottom of the sludge guide groove can be smoothly discharged through the discharge hole without disassembling the filter cartridge or other components. This simplifies the cleaning process, further enhancing the ease of maintenance of the air intake filter unit and ensuring the cleanliness of the filter cartridge's interior, preventing accumulated filtered material from re-contaminating the filter screen and affecting the filtration effect.

[0017] Furthermore, one end of the main air intake pipe is horizontally inserted into the upper part of the factory building, and multiple air intake branch pipes are connected to the main air intake pipe. The ends of the air intake branch pipes away from the main air intake pipe are arranged in various directions of the factory building.

[0018] Beneficial effects: In this solution, one end of the main air intake duct is horizontally inserted into the upper part of the factory building, and multiple air intake branch ducts are connected to the main air intake duct. The ends of the air intake branch ducts away from the main air intake duct are set in all directions of the factory building. This design allows the filtered clean fresh air to be delivered more evenly to all areas of the factory building, avoiding the situation of insufficient fresh air in some areas. Meanwhile, the fresh air supplied from the top forms a downward airflow within the factory, which, in conjunction with the exhaust and dust removal unit at the bottom, can more efficiently remove dust-laden air from the factory, improve the overall ventilation and dust removal effect, further reduce the risk of equipment coming into contact with dust, and ensure stable equipment operation. Multiple air intake branches facing different directions can also adapt to the complex layout of the factory, ensuring that clean air can cover the concentrated equipment areas and corners, enhancing the system's ability to purify and ventilate the overall factory environment.

[0019] Furthermore, the exhaust and dust removal unit also includes an exhaust duct, which is connected to the air outlet of the exhaust fan. The exhaust fan is provided in multiple sets, which are distributed in various areas of the factory.

[0020] Beneficial effects: The exhaust duct provides a directional transport channel for the dust-laden air discharged by the exhaust fans, preventing the dust-laden air from spreading and flowing back within the factory and ensuring that it can be smoothly discharged to the outside of the factory. Multiple sets of exhaust fans distributed throughout the factory can provide targeted exhaust based on the dust levels in different areas, achieving full coverage of the factory and reducing the accumulation of dust-laden air in certain areas. Meanwhile, combined with the airflow formed by the intake air filter unit delivering clean fresh air from the top, multiple exhaust fans can create more efficient air circulation and convection within the factory, accelerating the discharge of dust-laden air, further reducing the dust concentration within the factory, creating a cleaner environment for equipment operation, effectively ensuring stable equipment operation, and extending the equipment's service life.

[0021] Furthermore, it also includes a cyclone dust collector, wherein the outlet of the exhaust fan is connected to the inlet of the cyclone dust collector.

[0022] Beneficial effects: This solution involves installing a cyclone dust collector at the exhaust fan outlet to centrifuge and separate larger dust particles in the exhaust air, preventing the exhaust dust from settling back onto the equipment surface or being sucked into the intake fan, thus preventing secondary pollution.

[0023] Furthermore, the exhaust and dust removal unit also includes a drive mechanism for adjusting the direction of the exhaust fan. The drive mechanism includes a support platform, a rotary motor, a swing motor, a sliding sleeve, a guide column, a first limiting plate, a second limiting plate, an annular plate, and a swing plate. The output shaft of the rotary motor is vertically arranged, and the rotary motor is fixed to the bottom of the support platform. The swing motor and the guide column are both fixed to the top of the support platform. The guide column is coaxially rotatably fitted with a vertical shaft on its inner side. The bottom end of the vertical shaft is coaxially and fixedly connected to the output shaft of the rotating motor. The top end of the vertical shaft is vertically and fixedly connected to a horizontal shaft. The horizontal shaft is rotatably fitted with a rotating shaft. One end of the rotating shaft is fixedly connected to a rotating cylinder. The other end of the rotating shaft is fixedly connected to a connecting plate. The end of the connecting plate away from the rotating shaft is connected to the exhaust fan. The outer side of the rotating cylinder is fixedly connected to a drive rod. One end of the drive rod is connected to a sliding ball. The sliding sleeve and the guide post slide together coaxially. The first limiting plate and the second limiting plate are fixed to the outside of the sliding sleeve. A connecting frame is connected between the annular plate and the sliding sleeve, and the annular plate is located above the sliding sleeve. An annular groove is formed on the inner side of the annular plate. The sliding ball on the drive rod is embedded in the annular groove and can slide around the annular groove. The output shaft of the swing motor is horizontally set. One end of the swing plate is fixedly connected to the output shaft of the swing motor. The other end of the swing plate is connected to a drive post, and the drive post is embedded between the first limiting plate and the second limiting plate.

[0024] Beneficial effects: The drive mechanism in this solution can flexibly adjust the orientation of the exhaust fan, significantly improving the targeting and flexibility of exhaust and dust removal. When the rotating motor is working, its output shaft drives the vertical shaft to rotate, which in turn drives the exhaust fan to rotate synchronously with the vertical shaft through components such as the horizontal shaft and rotating shaft. This achieves circumferential adjustment of the exhaust fan in the horizontal direction, allowing it to cover a larger exhaust area.

[0025] When the swing motor is working, its output shaft drives the swing plate to swing. The drive column on the swing plate is between the first limit plate and the second limit plate. Therefore, during the swing of the swing plate, it can drive the sliding sleeve to slide up and down along the guide column. The movement of the sliding sleeve is transmitted to the annular plate through the connecting frame. The annular groove on the inner side of the annular plate drives the sliding ball on the drive rod to move, causing the rotating drum and rotating shaft to rotate. In turn, the connecting plate connected to the rotating shaft drives the exhaust fan to rotate around the horizontal axis, realizing the angle adjustment of the exhaust fan in the vertical direction. This multi-directional, multi-angle adjustment allows the exhaust fans to precisely adjust their exhaust direction according to the dust levels in different areas of the factory, efficiently exhausting key areas where dust accumulates and avoiding the dead zones inherent in fixed-direction exhaust. Simultaneously, the distribution of multiple exhaust fans further enhances air circulation and convection within the factory, accelerating the removal of dust-laden air, effectively reducing dust concentration, providing a cleaner environment for equipment operation, ensuring stable equipment operation, and extending equipment lifespan.

[0026] Furthermore, the air intake filtration unit also includes a medium-efficiency electrostatic adsorption module, a high-efficiency filtration module, and an activated carbon adsorption module connected in sequence, wherein the medium-efficiency electrostatic adsorption module is connected to one end of the primary filtration module. The medium-efficiency electrostatic adsorption module includes a first cylinder, an electric field generating component for generating a high-voltage electrostatic field installed inside the first cylinder, and a dust collecting plate for adsorbing charged dust. The electric field generating component can charge medium-sized dust particles, and the dust collecting plate can adsorb charged medium-sized dust particles. The high-efficiency filtration module includes a second cylinder, an ultra-high-efficiency filter paper folded filter screen installed inside the second cylinder, and a clogging detection sensor; the activated carbon adsorption module includes a third cylinder and a honeycomb activated carbon filter screen installed inside the third cylinder.

[0027] Beneficial effects: In this solution, the air intake filtration unit is newly connected with a medium-efficiency electrostatic adsorption module, a high-efficiency filtration module and an activated carbon adsorption module in sequence, and works with the primary filtration module to form a multi-level, progressive filtration system, which significantly improves the cleanliness of the air entering the factory. The medium-efficiency electrostatic adsorption module generates a high-voltage electrostatic field through an electric field generating component inside the first cylinder. This charges medium-sized dust particles, which are then adsorbed by the dust collection plates. This effectively intercepts medium-sized dust particles that the primary filter module failed to filter, further reducing the risk of such dust entering the equipment and causing wear. Its modular design also facilitates subsequent maintenance. Inside the second cylinder of the high-efficiency filtration module, the ultra-high-efficiency filter paper folded filter screen has extremely high filtration efficiency for tiny particles and can accurately capture tiny dust particles. In conjunction with the blockage detection sensor, it will promptly remind you to replace it when the resistance exceeds the standard, ensuring stable filtration effect for tiny particles and preventing them from affecting the circuit performance of the equipment. Inside the third cylinder of the activated carbon adsorption module, the honeycomb activated carbon filter has a rich pore structure, which can efficiently adsorb odors and harmful gases in the air, improve the air quality entering the factory, prevent corrosive gases from combining with dust and causing corrosion to the equipment, and create a better environment for equipment operation and personnel work. This multi-stage filtration system effectively filters air pollutants, from large to medium-sized particles and microparticles, as well as odors and harmful gases. It significantly reduces the adverse effects of various pollutants entering the factory on equipment, further ensuring the stability of equipment operation, extending equipment lifespan, and improving the overall air quality within the factory. Attached Figure Description

[0028] The accompanying drawings, which are included to provide a further understanding of embodiments of the invention and form part of this application, do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of an embodiment of a factory dust removal and ventilation system according to the present invention; Figure 2 This is a schematic diagram of the structure of the air inlet filter unit in an embodiment of a factory dust removal and ventilation system according to the present invention; Figure 3 This is a longitudinal cross-sectional view of the primary filter module in one embodiment of a factory dust removal and ventilation system according to the present invention; Figure 4 for Figure 3 A magnified view of a section at point A in the middle; Figure 5 This is a bottom view of the rotating plate in an embodiment of a dust removal and ventilation system for a factory according to the present invention; Figure 6 This is a longitudinal cross-sectional view of the primary filter module in another embodiment of a factory dust removal and ventilation system according to the present invention; Figure 7 This is a schematic diagram of the structure of a factory dust removal and ventilation system according to the present invention after adding a cyclone dust collector; Figure 8 This is a schematic diagram of the structure of a factory dust removal and ventilation system according to the present invention after adding a drive mechanism; Figure 9 This is a schematic diagram of the drive mechanism in an embodiment of a factory dust removal and ventilation system according to the present invention.

[0029] The attached diagram shows the markings and corresponding component names: Air inlet filter unit 100, frame 101, main air inlet duct 102, branch air inlet duct 103, air collection hood 104; 1. Air intake fan; 2. Primary filter module; 3. Medium-efficiency electrostatic adsorption module; High-efficiency filtration module 4, filter screen 401, slag guide channel 402, plug 403, filter cartridge 404; Activated carbon adsorption module 5, flange 6; The dust-shaking mechanism includes: 7. Support 701, fixed cylinder 702, rotating column 703, rotating plate 704, driving block 705, moving plate 706, groove 707, vibrating rod 708, vibrating ball 709, guide cylinder 710, spring 711, and support rod 712. Exhaust and dust removal unit 200, exhaust fan 201, exhaust duct 202, mounting flange 203, cyclone dust collector 204; Factory building 300, ceiling 301; Equipment 400; Drive mechanism 500, support platform 501, rotary motor 502, guide column 503, vertical shaft 504, horizontal shaft 505, rotating shaft 506, connecting plate 507, fixed rod 508, rotating cylinder 509, drive rod 510, swing motor 511, swing plate 512, drive column 513, sliding sleeve 514, first limiting plate 515, second limiting plate 516, annular plate 517, connecting frame 518; Dust sensor 600. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of the present invention are only used to explain the present invention and are not intended to limit the present invention.

[0031] As one embodiment of this application, such as Figure 1 and Figure 2 As shown, this embodiment provides a factory dust removal and ventilation system, including an inlet air filtration unit 100 and an exhaust air dust removal unit 200. The inlet air filtration unit 100 is installed on the upper part of the factory 300. In this embodiment, a frame 101 is welded and fixed to the bottom of the inlet air filtration unit 100, and the bottom of the frame 101 is fixed to the top of the factory 300 by bolts. The exhaust air dust removal unit 200 is installed on the lower part of the factory 300. The air outlet of the inlet air filtration unit 100 is connected to an air inlet main duct 102. The end of the air inlet main duct 102 away from the inlet air filtration unit 100 is connected to the interior of the factory 300, thereby providing ventilation for the interior of the factory 300. In this embodiment, the air intake filtration unit 100 includes an air intake fan 1 and a primary filter module 2; combined with Figure 3 As shown, the primary filter module 2 includes a filter cylinder 404 and a filter screen 401. The inlet end of the filter cylinder 404 is connected to one end of the air outlet of the air intake fan 1. Both ends of the filter cylinder 404 are open to facilitate air intake. The filter screen 401 is located inside the filter cylinder 404. The outlet end of the filter cylinder 404 is connected to the interior of the plant 300. In this embodiment, the outlet end of the filter cylinder 404 is connected to the interior of the plant 300 through the main air intake pipe 102. In this embodiment, the exhaust and dust removal unit 200 includes an exhaust fan 201. The exhaust fan 201 is installed inside or outside the factory building 300. The air inlet of the exhaust fan 201 is connected to the interior of the factory building 300, and the air outlet of the exhaust fan 201 is connected to the exterior of the factory building 300. In this embodiment, the exhaust fan 201 is installed inside the factory building 300. Specifically, it can be installed by wall mounting or floor mounting on the side wall of the factory building 300.

[0032] In one embodiment, the installation locations for the air intake filtration unit and the exhaust dust removal unit are as follows: the air intake for drawing air into the factory should be located upwind or in a clean, pollution-free outdoor area, while the exhaust for expelling air from the factory should be located downwind. The air intake and exhaust should be far apart to avoid contamination and prevent backflow of exhaust gas. The air intake filtration unit and the exhaust dust removal unit are installed at the aforementioned air intake and exhaust locations, respectively, for the purpose of controlling air intake and exhaust from the factory. The air intake should be equipped with rainproof, insect-proof, and dustproof covers (such as louvers and filters), and the exhaust should be equipped with a check valve (to prevent backflow of outdoor air). If the factory is located in an earthquake zone, the fans and ducts should be seismically secured (such as with seismic bracing), and the site should be chosen to avoid impact from falling rocks. Underground environments are naturally humid (relative humidity often exceeding 80%) and may be accompanied by seepage from mountains. Since the exhaust system is located at the lower part of the factory, condensation can easily accumulate, potentially leading to equipment corrosion and condensation. Therefore, the duct material must be suitable for the environment, and corrosion-resistant materials should be given priority.

[0033] In addition, noise reduction measures are taken for the ventilation system: for example, vibration damping pads, flexible pipes, and sound insulation cotton can be installed on the air intake filter unit and the exhaust dust removal unit to avoid noise pollution (the noise level in the factory is ≤85dB and the surrounding environment meets the sound environment standards). The air intake and exhaust outlets are far away from the office area or residential area, and silencers are installed when necessary.

[0034] In one embodiment, such as Figure 1 As shown, the exhaust and dust removal unit 200 also includes an exhaust duct 202, which is connected to the outlet of the exhaust fan 201. In this embodiment, there are multiple sets of exhaust fans 201, which are distributed in various areas of the factory 300, such as high-concentration pollution areas (such as the material inlet, grinding station, and welding area): for example, a wall-mounted exhaust fan is installed 1m away from the grinding machine, with the air outlet angled at 45° to target the dust generated by grinding; or the area around the equipment 400 (such as around machine tools and control cabinets): the exhaust fan unit is installed on the back or side of the equipment 400 (avoiding the operating surface), using side wall installation, covering a range of 1-3m of the equipment, focusing on exhausting the heat dissipation and surface dust generated during equipment operation; or the exhaust fans 201 are evenly arranged in the corners of the factory or at low positions on the side walls to avoid dust accumulation in non-key areas.

[0035] This embodiment takes the exhaust fan 201 installed on the side wall of the factory building 300 as an example. The exhaust fan 201 has a mounting flange 203 welded on its outer side, and the exhaust fan 201 is fixed to the side wall of the factory building 300 through the mounting flange 203.

[0036] In one embodiment, such as Figure 1As shown, the factory dust removal and ventilation system in this embodiment also includes a central control system. Laser dust sensors 600 are installed around key equipment 400 and dust-prone areas within the factory 300 to monitor dust concentration in each area in real time and transmit the data to the central control system. This allows for timely detection of abnormal dust concentrations and prevents excessive dust accumulation around the equipment 400. Multiple exhaust fans 201, according to instructions from the central control system, prioritize directional exhaust to areas with high dust concentrations around the equipment 400, reducing dust deposition on and inside the equipment 400.

[0037] In one embodiment, such as Figure 7 As shown, the dust removal and ventilation system in this embodiment also includes a cyclone dust collector 204. The outlet of the exhaust fan 201 is connected to the inlet of the cyclone dust collector 204 through an exhaust pipe 202. The cyclone dust collector 204 centrifugally separates larger dust particles in the air discharged by the exhaust fan 201 to prevent the discharged dust from settling again on the surface of the equipment 400 or being sucked in by the inlet fan 1, thus preventing secondary pollution.

[0038] In one embodiment, combined Figure 2 , Figure 3 and Figure 4 As shown, a dust removal and ventilation system for a factory includes a dust-shaking mechanism 7 for shaking the filter screen 401. The dust-shaking mechanism 7 includes a support 701, a fixed cylinder 702, a rotating plate 704, a rotating column 703, a moving plate 706, a vibrating rod 708, and a guide cylinder 710. The support 701 is fixed to the top of the filter screen 404 by welding or bolts. The fixed cylinder 702 is fixedly installed on the top of the support 701, and the fixed cylinder 702 is located in the center of the support 701. The fixed cylinder 702 and the support 701 are connected. The fixed cylinder 702 is hollow inside and its top and bottom ends are interconnected. The rotating column 703 and the rotating plate 704 are coaxially fixedly connected. In this embodiment, the rotating column 703 and the rotating plate 704 are either welded or integrally formed. The rotating column 703 and the fixed cylinder 702 are coaxially rotatably connected by bearings. The top end of the rotating column 703 is located above the fixed cylinder 702, that is, the top end of the rotating column 703 protrudes from the top of the fixed cylinder 702. The rotating plate 704 is located below the fixed cylinder 702. The guide cylinder 710 is fixedly connected to the top of the filter cylinder 404. In this embodiment, the guide cylinder 710 is located inside the bracket 701 and is bearing-mounted with the fixed cylinder 702. The guide cylinder 710 is welded and fixed to the top of the filter cylinder 404. The vibrating rod 708 passes through the top of the filter cylinder 404 and the guide cylinder 710 and rotates with the filter cylinder 404 and the guide cylinder 710. In this embodiment, the vibrating rod 708 and the guide cylinder 710 are rotatably connected by a bearing. A through hole is opened at the top of the filter cylinder 404, and the vibrating rod 708 passes through the through hole and is clearance-fitted with the through hole. The top end of the vibrating rod 708 is coaxially fixedly connected to the moving plate 706. In this embodiment, the vibrating rod 708 and the moving plate 706 are coaxially welded and fixed or integrally formed. A spring 711 is sleeved on the outside of the vibrating rod 708, and the spring 711 is located between the moving plate 706 and the guide cylinder 710. Combination Figure 4 and Figure 5 As shown, the bottom end of the rotating plate 704 has multiple driving blocks 705 evenly distributed along its circumference, and the top end of the moving plate 706 has multiple grooves 707 evenly distributed along its circumference. Combined with... Figure 3 As shown, in this embodiment, the filter screen 401 is inclined. Driving the rotating column 703 to rotate enables multiple driving blocks 705 to rotate intermittently in multiple grooves 707 under the action of spring 711, thereby driving the vibrating rod 708 to reciprocate vertically, causing the bottom end of the vibrating rod 708 to repeatedly strike the filter screen 401. In this embodiment, the filter screen 401 is a foldable metal wire mesh filter.

[0039] In one embodiment, the rotating column 703 can be rotated manually or driven by an external drive component, such as by installing a motor on the outside and connecting the output shaft of the motor to the rotating column 703 via a coupling, thereby facilitating the automatic rotation of the rotating column 703 by driving it with a motor.

[0040] In one embodiment, such as Figure 4 and Figure 5 As shown, the groove 707 is a hemispherical groove, and the driving block 705 is a hemispherical driving block. This allows the driving block 705 to slide into or out of the groove 707 more smoothly, avoiding jamming. In addition, the number of grooves 707 is the same as the number of driving blocks 705.

[0041] In one embodiment, for the selection of filter material: the filter can also be made of rigid materials such as metal mesh, nylon mesh, and rigid plastic filter (resistant to vibration, not easily deformed or fiber broken). The vibration frequency and vibration duration need to be determined by combining the rotation speed of the rotating column in the dust shaking mechanism and the number and size of the hemispherical drive block and hemispherical groove, and controlled reasonably.

[0042] In one embodiment, a rubber sealing cylinder is embedded in the inner wall of the through hole, and the vibrating rod 708 slides and seals with the through hole at the top of the filter cylinder 404 through the rubber sealing cylinder, which can ensure the sealing of the filter cylinder and prevent air leakage.

[0043] In one embodiment, such as Figure 3 As shown, a slag guide groove 402 for collecting filtered material is provided at the bottom of the filter cylinder 404 and on one side of the filter screen 401. The slag guide groove 402 is conical, and a slag outlet hole is provided at the bottom of the slag guide groove 402. A plug 403 is detachably fitted inside the slag outlet hole. In this embodiment, the plug 403 is threadedly connected to the slag outlet hole. By screwing in or out the plug 403, the purpose of sealing the slag outlet hole or opening the slag outlet hole for slag discharge can be achieved.

[0044] In this embodiment, the dust guide channel 402 is located on the side of the filter screen 401 where dust easily accumulates. Specifically, in this embodiment, the dust guide channel 402 is located on the windward side, corresponding to... Figure 3 The right side of the middle filter 401 allows for more efficient collection of dust carried by airflow, improving the overall dust removal effect.

[0045] In terms of length design, the slag guide channel 402 can be slightly shorter than the vertical projected length of the filter screen 401, depending on the tilt angle of the filter screen 401. The airflow generated during the operation of the intake fan will naturally blow dust into the slag guide channel 402. Appropriately shortening the length will not affect the slag collection effect and can also reduce material consumption. In terms of width, to avoid slag leakage on both sides and prevent clogging on both sides of the bottom of the filter screen 401, the width of the slag guide channel 402 should not be less than the vertical projected width of the filter screen 401.

[0046] In one embodiment, such as Figure 6 As shown, a support rod 712 is connected to one side of the vibrating rod 708. The support rod 712 is welded to the vibrating rod 708, fixed with screws, or threaded. The support rod 712 and the vibrating rod 708 move synchronously, and one end of the support rod 712 can strike the filter screen 401. A vibrating ball 709 is connected to one end of both the support rod 712 and the vibrating rod 708.

[0047] In this embodiment, the support rod 712 can also tap the filter screen 401 simultaneously, increasing the number of tapping points and expanding the tapping coverage of the filter screen 401. This allows for a more comprehensive removal of dust adhering to different locations on the filter screen 401, further improving the cleaning effect of the filter screen 401.

[0048] In one embodiment, such as Figure 2As shown, the air intake filtration unit 100 in this embodiment also includes a medium-efficiency electrostatic adsorption module 3, a high-efficiency filtration module 4, and an activated carbon adsorption module 5 connected in sequence. The medium-efficiency electrostatic adsorption module 3 is connected to one end of the primary filtration module 2. In this embodiment, the primary filtration module 2, the medium-efficiency electrostatic adsorption module 3, the high-efficiency filtration module 4, and the activated carbon adsorption module 5 are fixedly connected to each other by a flange 6. The positions between the connections can be sealed with sealing strips to prevent air leakage and ensure airtightness.

[0049] The medium-efficiency electrostatic adsorption module 3 includes a first cylinder, an electric field generating component installed inside the first cylinder for generating a high-voltage electrostatic field, and a dust collecting plate for adsorbing charged dust. The electric field generating component can charge medium-sized dust particles, and the dust collecting plate can adsorb charged medium-sized dust particles. The high-voltage electrostatic field is used to charge medium-sized dust particles and adsorb them onto the dust collecting plate, preventing such dust from entering the equipment 400 and rubbing against mechanical parts, thus reducing the risk of wear. The high-efficiency filtration module 4 includes a second cylinder, an ultra-high efficiency filter paper pleated filter 401 installed in the second cylinder, and a clogging detection sensor. The ultra-high efficiency filter paper pleated filter can filter out fine particles. The built-in clogging detection sensor reminds you to replace it when the resistance exceeds the standard, ensuring the filtration effect and preventing fine dust particles from entering the device 400 and affecting the circuit performance. The activated carbon adsorption module 5 includes a third cylinder and a honeycomb activated carbon filter installed inside the third cylinder. The honeycomb activated carbon filter adsorbs odors and harmful gases in the dust, improves the air intake quality, and prevents corrosive gases from combining with dust and causing corrosion to the equipment 400.

[0050] In one embodiment, the following optimizations are made for later maintenance: Although the dust is mainly concentrated in the first filter 401, after long-term use, the dust collection plate in the medium-efficiency electrostatic adsorption module will be affected by excessive dust accumulation, the ultra-high efficiency filter paper folded filter may become clogged, and the honeycomb activated carbon filter will also fail due to adsorption saturation. Therefore, these components need to be replaced regularly.

[0051] To facilitate maintenance, this embodiment uses a detachable structure to install the modules. For example, each module can be assembled and connected in a snap-fit ​​or drawer-type manner. The edges where they are connected are sealed with sealing strips to prevent air leakage. This makes disassembly and replacement easier, simplifies the replacement process, and reduces maintenance costs.

[0052] In one embodiment, such as Figure 1 As shown, one end of the main air intake pipe 102 is horizontally inserted into the upper part of the factory building 300, and multiple air intake branch pipes 103 are connected to the main air intake pipe 102. The ends of the multiple air intake branch pipes 103 away from the main air intake pipe 102 are set towards various directions of the factory building 300.

[0053] In this embodiment, an air collecting hood 104 is connected to the end of the air inlet branch pipe 103. The air collecting hood 104 can guide and regulate the airflow entering the air inlet branch pipe 103, avoid the airflow from generating eddies or resistance due to disorder, and make the fresh air enter the plant 300 more smoothly through the branch pipe, reduce energy loss, improve ventilation efficiency, and when the air collecting hood 104 faces the concentrated area of ​​equipment 400 or the personnel operation area, it can more accurately guide the clean fresh air to these key areas, prioritize the improvement of air quality in key areas, and provide more direct clean air protection for equipment 400 and personnel.

[0054] In this embodiment, a suspended ceiling 301 is installed on the upper part of the factory building 300, and the main air intake pipe 102 is covered by the suspended ceiling 301, which can improve the aesthetics and simplicity of the factory building 300.

[0055] In one embodiment, such as Figure 8 As shown, this embodiment takes the floor-mounted installation of the exhaust fan 201 as an example. The exhaust dust removal unit 200 also includes a drive mechanism 500 for adjusting the direction of the exhaust fan 201. The drive mechanism 500 is installed on the factory floor, and the exhaust fan 201 is installed on the drive mechanism 500. The drive mechanism 500 can drive the exhaust fan 201 to rotate and change the exhaust direction of the exhaust fan 201.

[0056] Combination Figure 9 As shown, the drive mechanism 500 includes a support platform 501, a rotary motor 502, a swing motor 511, a sliding sleeve 514, a guide post 503, a first limiting plate 515, a second limiting plate 516, an annular plate 517, and a swing plate 512; the output shaft of the rotary motor 502 is vertically arranged, and the rotary motor 502 is fixed to the bottom of the support platform 501, while the swing motor 511 and the guide post 503 are both fixed to the top of the support platform 501; A vertical shaft 504 is coaxially rotatably fitted to the inner side of the guide column 503 via a bearing. The bottom end of the vertical shaft 504 is coaxially fixedly connected to the output shaft of the rotating motor 502 via a coupling. A horizontal shaft 505 is vertically fixedly connected to the top end of the vertical shaft 504. In this embodiment, the horizontal shaft 505 is welded to the vertical shaft 504 or integrally formed. A rotating shaft 506 is rotatably fitted to the inner side of the horizontal shaft 505 via a bearing. A rotating cylinder 509 is fixedly connected to one end of the rotating shaft 506, and a connecting plate 507 is fixedly connected to the other end of the rotating shaft 506. In this embodiment, the rotating cylinder 509 is coaxially connected to the rotating shaft 506, and the rotating cylinder 509 and the rotating shaft 506 are fixedly connected by welding or other means. The connecting plate 507 is welded to the rotating shaft 506, integrally formed, or fixed by other means. One end of the connecting plate 507 away from the rotating shaft 506 is connected to the exhaust fan 201. In this embodiment, the connecting plate 507 is L-shaped, and one end of the connecting plate 507 is fixedly connected to the rotating shaft 506. The other end of the connecting plate 507 extends above the horizontal shaft 505, and a fixing rod 508 is vertically welded to the top of the connecting plate 507. The fixing rod 508 is welded to the outer shell of the exhaust fan 201 or fixed by bolts. In this embodiment, a drive rod 510 is fixedly connected to the outside of the rotating cylinder 509. One end of the drive rod 510 is connected to a sliding ball (not shown in the figure). In this embodiment, the drive rod 510 is welded to the outside of the rotating cylinder 509, integrally formed, or fixed in other ways. The sliding ball is welded to the drive rod 510, threaded, integrally formed, or fixed in other ways. The sliding sleeve 514 is coaxially slidably engaged with the guide post 503. The first limiting plate 515 and the second limiting plate 516 are fixed on the outside of the sliding sleeve 514. In this embodiment, the first limiting plate 515 and the second limiting plate 516 are both located at the lower part of the sliding sleeve 514, and the first limiting plate 515 and the second limiting plate 516 are both annular. The first limiting plate 515 and the second limiting plate 516 are coaxially welded and fixed to the sliding sleeve 514. A connecting frame 518 connects the annular plate 517 and the sliding sleeve 514. In this embodiment, the connecting frame 518 is L-shaped, and its two ends are welded and fixed to the bottom end of the annular plate 517 and the outer side of the sliding sleeve 514, respectively. The annular plate 517 is located above the sliding sleeve 514. In this embodiment, an annular groove is formed on the inner side of the annular plate 517. The sliding ball on the drive rod 510 is embedded in the annular groove and can slide circumferentially along the annular groove, thereby driving the exhaust fan 201 to rotate circumferentially.

[0057] In this embodiment, the output shaft of the swing motor 511 is horizontally arranged, one end of the swing plate 512 is fixedly connected to the output shaft of the swing motor 511, and the other end of the swing plate 512 is connected to the drive column 513. The swing plate 512 is inclined. In this embodiment, one end of the swing plate 512 is fixedly connected to the output shaft of the swing motor 511 by a set screw, and the other end of the swing plate 512 is welded or fixed to the drive plate by screws. The drive column 513 is embedded between the first limiting plate 515 and the second limiting plate 516.

[0058] In this embodiment, a section of flexible hose or corrugated pipe is connected to the exhaust pipe 202, and the length of the exhaust pipe 202 can be set according to the rotation amplitude of the exhaust fan 201 so that it can adapt to the rotation direction of the exhaust fan 201.

[0059] In this embodiment, the drive mechanism 500 can flexibly adjust the orientation of the exhaust fan 201. When the rotating motor 502 is working, its output shaft drives the vertical shaft 504 to rotate, and then drives the exhaust fan 201 to rotate synchronously with the vertical shaft 504 through components such as the horizontal shaft 505 and the rotating shaft 506, so as to realize the circumferential rotation adjustment of the exhaust fan 201 in the horizontal direction, which can cover a larger exhaust area.

[0060] When the swing motor 511 is working, the output shaft of the swing motor 511 drives the swing plate 512 to swing up and down. The drive column 513 on the swing plate 512 is between the first limit plate 515 and the second limit plate 516. Therefore, during the swing of the swing plate 512, it can drive the sliding sleeve 514 to slide up and down along the guide column 503. The up and down movement of the sliding sleeve 514 is transmitted to the annular plate 517 through the connecting frame 518. The annular groove on the inner side of the annular plate 517 drives the sliding ball on the drive rod 510 to move, thereby driving the rotating drum 509 and the rotating shaft 506 to rotate synchronously. This causes the connecting plate 507 connected to the rotating shaft 506 to drive the exhaust fan 201 to rotate around the horizontal axis 505, thereby realizing the angle adjustment of the exhaust fan 201 in the vertical direction.

[0061] Driven by the rotating motor 502 and the oscillating motor 511, the exhaust fan 201 can rotate in multiple directions, allowing the exhaust fan 201 to precisely adjust the exhaust direction according to the dust content in different areas of the factory 300, and to efficiently exhaust key areas where dust accumulates, avoiding the dead zone problem of fixed-direction exhaust.

[0062] In one embodiment, the central control system automatically adjusts the operating power and intake / exhaust ratio of the intake and exhaust fans based on dust concentration monitoring data from dust sensors and equipment operating status. When the equipment operates under high load, generating significant heat and increasing dust levels, the system automatically enhances intake filtration and exhaust ventilation to ensure heat dissipation while reducing dust concentration.

[0063] Linkage control function: The central control system is linked with the dust sensor. When the temperature of the equipment is detected to rise, the ventilation of the equipment area is strengthened first to assist in heat dissipation. It is also linked with the harmful gas monitoring system to promptly remove harmful gases and prevent them from combining with dust and damaging the equipment.

[0064] Integration requirements with the factory's fire protection system: In accordance with the standards and specifications for factory fire protection systems, fire safety is the highest priority. When a fire alarm signal (with smoke alarm signal as the primary trigger signal) is issued, the ventilation system should immediately stop operating to prevent airflow from accelerating the spread of fire and to ensure that smoke can be quickly expelled from the factory, buying time for fire rescue.

[0065] The installation location of exhaust fans should be avoided as much as possible from smoke detectors in key fire prevention areas. If the two are too close, the smoke generated in the event of a fire may be directly exhausted by the exhaust fan, causing the smoke detectors to fail to detect the fire in time, delaying the timing of fire alarms, and posing a safety hazard.

[0066] Remote Monitoring Platform: The central control system utilizes IoT technology, allowing staff to remotely view the operating status of the ventilation and dust removal system, receive fault alarm information, and remotely control equipment start / stop and parameter adjustments, promptly addressing dust issues affecting equipment operation. This invention addresses problems caused by excessive dust in underground workshops, such as hindered heat dissipation, component wear, short circuits, and filter duct blockage, proposing an intelligent dust removal and ventilation system and method. Through multi-stage composite filtration by the intake fan, intelligent directional dust removal by the exhaust fan, and intelligent ventilation control, efficient dust filtration and precise dust removal are achieved, preventing dust damage to equipment and ensuring stable operation and extended equipment lifespan.

[0067] This invention constructs a highly efficient air intake filtration system to prevent dust from entering the factory and reduce the risk of dust contact with equipment. Simultaneously, the exhaust system of this invention precisely removes dust from the factory, reducing the dust concentration around the equipment. This invention achieves intelligent control of ventilation and dust removal, dynamically adjusting according to equipment operation and dust distribution to optimize dust removal efficiency. Finally, this invention ensures good heat dissipation and stable operation of equipment, extends equipment lifespan, and reduces failure rate and maintenance costs.

[0068] It should be noted that the above description of the disclosed embodiments enables those skilled in the art to implement or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A dust removal and ventilation system for a factory, characterized in that, It includes an air inlet filter unit and an air exhaust dust removal unit. The air inlet filter unit is installed in the upper part of the factory building, and the air exhaust dust removal unit is installed in the lower part of the factory building. The air outlet of the air inlet filter unit is connected to an air inlet main pipe, and the end of the air inlet main pipe away from the air inlet filter unit is connected to the interior of the factory building. The air intake filtration unit includes an air intake fan and a primary filtration module; the primary filtration module includes a filter cartridge and a filter screen, the inlet end of the filter cartridge is connected to one end of the air outlet of the air intake fan, and the filter screen is located inside the filter cartridge; the outlet end of the filter cartridge is connected to the interior of the factory building. The exhaust and dust removal unit includes an exhaust fan, which is installed inside or outside the factory building. The air inlet of the exhaust fan is connected to the interior of the factory building, and the air outlet of the exhaust fan is connected to the exterior of the factory building.

2. The factory dust removal and ventilation system according to claim 1, characterized in that, It also includes a dust-shaking mechanism for shaking the filter screen. The dust-shaking mechanism includes a bracket, a fixed cylinder, a rotating plate, a rotating column, a movable plate, a vibrating rod, and a guide cylinder. The bracket is fixed to the top of the filter cylinder, the fixed cylinder is fixedly installed on the top of the bracket, the rotating column is coaxially fixedly connected to the rotating plate, the rotating column is coaxially rotatably connected to the fixed cylinder, and the top of the rotating column is located above the fixed cylinder. The guide cylinder is fixedly connected to the top of the filter cylinder, and the vibrating rod passes through the top of the filter cylinder and the guide cylinder and rotates with the filter cylinder and the guide cylinder; the top end of the vibrating rod is fixedly connected to the moving plate coaxially, and a spring is sleeved on the outside of the vibrating rod, and the spring is located between the moving plate and the guide cylinder; The bottom end of the rotating plate has multiple driving blocks evenly distributed along its circumference, and the top end of the moving plate has multiple grooves evenly opened along its circumference. The filter screen is inclined. Driving the rotating column to rotate can cause the multiple driving blocks to rotate intermittently in the multiple grooves under the action of the spring, thereby driving the vibrating rod to move vertically back and forth, and causing the bottom end of the vibrating rod to repeatedly strike the filter screen.

3. The factory dust removal and ventilation system according to claim 2, characterized in that, The groove is a hemispherical groove, and the driving block is a hemispherical driving block.

4. A factory dust removal and ventilation system according to claim 2, characterized in that, A support rod is connected to one side of the vibrating rod. The support rod moves synchronously with the vibrating rod, and one end of the support rod can strike the filter screen. A vibrating ball is connected to one end of both the support rod and the vibrating rod.

5. A factory dust removal and ventilation system according to any one of claims 2-4, characterized in that, The bottom of the filter cylinder and one side of the filter screen are provided with a slag guide groove for collecting the filtered material. The slag guide groove is conical, and the bottom of the slag guide groove is provided with a slag outlet hole, which is detachably fitted with a plug.

6. A factory dust removal and ventilation system according to claim 1, characterized in that, One end of the main air intake pipe is horizontally inserted into the upper part of the factory building, and multiple air intake branch pipes are connected to the main air intake pipe. The ends of the multiple air intake branch pipes away from the main air intake pipe are arranged in various directions of the factory building.

7. A factory dust removal and ventilation system according to claim 1, characterized in that, The exhaust and dust removal unit also includes an exhaust duct, which is connected to the air outlet of the exhaust fan. The exhaust fan is provided in multiple sets, which are distributed in various areas of the factory.

8. A factory dust removal and ventilation system according to claim 1, characterized in that, It also includes a cyclone dust collector, wherein the outlet of the exhaust fan is connected to the inlet of the cyclone dust collector.

9. A factory dust removal and ventilation system according to claim 1, characterized in that, The exhaust and dust removal unit also includes a drive mechanism for adjusting the direction of the exhaust fan. The drive mechanism includes a support platform, a rotary motor, a swing motor, a sliding sleeve, a guide column, a first limiting plate, a second limiting plate, an annular plate, and a swing plate. The output shaft of the rotary motor is vertically arranged, and the rotary motor is fixed to the bottom of the support platform. The swing motor and the guide column are both fixed to the top of the support platform. The guide column is coaxially rotatably fitted with a vertical shaft on its inner side. The bottom end of the vertical shaft is coaxially and fixedly connected to the output shaft of the rotating motor. The top end of the vertical shaft is vertically and fixedly connected to a horizontal shaft. The horizontal shaft is rotatably fitted with a rotating shaft. One end of the rotating shaft is fixedly connected to a rotating cylinder. The other end of the rotating shaft is fixedly connected to a connecting plate. The end of the connecting plate away from the rotating shaft is connected to the exhaust fan. The outer side of the rotating cylinder is fixedly connected to a drive rod. One end of the drive rod is connected to a sliding ball. The sliding sleeve and the guide post slide together coaxially. The first limiting plate and the second limiting plate are fixed to the outside of the sliding sleeve. A connecting frame is connected between the annular plate and the sliding sleeve, and the annular plate is located above the sliding sleeve. An annular groove is formed on the inner side of the annular plate. The sliding ball on the drive rod is embedded in the annular groove and can slide around the annular groove. The output shaft of the swing motor is horizontally set. One end of the swing plate is fixedly connected to the output shaft of the swing motor. The other end of the swing plate is connected to a drive post, and the drive post is embedded between the first limiting plate and the second limiting plate.

10. A factory dust removal and ventilation system according to claim 1, characterized in that, The air intake filtration unit also includes a medium-efficiency electrostatic adsorption module, a high-efficiency filtration module and an activated carbon adsorption module connected in sequence, and the medium-efficiency electrostatic adsorption module is connected to one end of the primary filtration module. The medium-efficiency electrostatic adsorption module includes a first cylinder, an electric field generating component for generating a high-voltage electrostatic field installed inside the first cylinder, and a dust collecting plate for adsorbing charged dust. The electric field generating component can charge medium-sized dust particles, and the dust collecting plate can adsorb charged medium-sized dust particles. The high-efficiency filtration module includes a second cylinder, an ultra-high-efficiency filter paper folded filter screen installed inside the second cylinder, and a clogging detection sensor; the activated carbon adsorption module includes a third cylinder and a honeycomb activated carbon filter screen installed inside the third cylinder.

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