Filtering device for reducing smoke resistance

Abstract

The utility model discloses a filtering device for reducing smoke resistance, which comprises a rack, a pretreatment mechanism, a filtering mechanism and a dust collecting box, the pretreatment mechanism is fixedly connected with the rack, the filtering mechanism is fixedly connected with the rack, the dust collecting box is communicated with the pretreatment mechanism, the filtering mechanism is communicated with the dust collecting box, and the rack is fixedly connected with the rack. The dust collecting box is located below the pretreatment mechanism and the filtering mechanism, the pretreatment mechanism is communicated with the filtering mechanism, the pretreatment mechanism is responsible for primarily treating entering flue gas, the treatment pressure of the subsequent filtering mechanism is effectively relieved, and the treated flue gas enters the filtering mechanism and is filtered more finely through an inner-layer filter bag and an outer-layer filter bag; the inner-layer filter bag is responsible for capturing tiny particles, the outer-layer filter bag is used for treating large particles, the dust collection box is used for collecting dust and particles falling off in the pretreatment and filtering process, and the dust collection box is arranged at the bottom, so that dust collection and cleaning are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of filter devices, in particular to a filter device for reducing smoke resistance. Background Art

[0002] With the increase of industrial activities, air pollution, especially flue gas emissions, has become increasingly serious, requiring more efficient flue gas treatment technologies to reduce the impact on the environment. Existing flue gas filtration technologies cover mechanical, electrochemical and biological filtration methods, among which mechanical filtration and filter bag systems are the most commonly used methods. These technologies remove suspended particles in flue gas through physical blocking or centrifugal force, effectively reducing the emission of air pollutants. With the strengthening of environmental protection regulations and the promotion of clean production technologies, the requirements for flue gas treatment efficiency and system sustainability are constantly increasing, which has promoted the further development and innovation of filtration technology.

[0003] Currently, the existing filter bag system removes suspended particles in the flue gas through physical blocking, thereby reducing the emission of air pollutants.

[0004] Regarding the related technologies mentioned above, although the existing technologies can effectively treat pollutants in flue gas, there are still some shortcomings. Traditional filter bags are prone to clogging and wear when treating high dust loads or high-temperature flue gas, which increases the flue gas resistance and reduces the filtration efficiency, resulting in frequent maintenance and shortened service life. Therefore, technical personnel in this field provide a filtering device that reduces the flue gas resistance to solve the problems raised in the above background. Utility Model Content

[0005] The purpose of the utility model is to provide a filtering device for reducing smoke resistance, so as to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0007] A filtering device for reducing smoke resistance includes a frame, a pretreatment mechanism, a filtering mechanism and a dust collecting box. The pretreatment mechanism and the frame are tightly connected, the filtering mechanism and the frame are tightly connected, the dust collecting box and the pretreatment mechanism are connected, the filtering mechanism and the dust collecting box are connected, the dust collecting box is located below the pretreatment mechanism, the dust collecting box is located below the filtering mechanism, and the pretreatment mechanism and the filtering mechanism are connected.

[0008] By adopting the above technical solution, the pretreatment mechanism, the filtering mechanism and the dust box are all firmly connected to the supporting frame to form a stable working system. The pretreatment mechanism is responsible for the preliminary treatment of the incoming flue gas, and removes larger particles and dust through the primary treatment component and the secondary treatment component, effectively reducing the processing pressure of the subsequent filtering mechanism. The treated flue gas then enters the filtering mechanism, where inner and outer double-layer filter bags are used for finer filtration. The inner filter bag is responsible for capturing tiny particles, while the outer filter bag handles larger particles. The filtered flue gas is guided to the smoke outlet pipe through the fan for discharge, and the dust box collects the dust from the pretreatment and filtration process. The dust and particles that fall off are collected by a dust collecting box at the bottom of the entire device to facilitate dust collection and cleaning. It starts from the pretreatment mechanism, where the cyclone separator and filter first remove most of the coarse dust to protect the internal structure from wear. Then the flue gas enters the filtration mechanism and is purified more deeply through a complex filter bag system. The cleaning components and airflow differentiation components play a role in the process. The former cleans the filter bags regularly, and the latter optimizes the airflow distribution, thereby reducing the resistance of the flue gas and improving the overall filtration efficiency. It not only improves the filtration accuracy, but also increases the economic benefits and environmental protection effects by reducing maintenance requirements and extending the life of the equipment.

[0009] Furthermore, the pretreatment mechanism includes a pretreatment rack, a primary treatment component, a secondary treatment component, a fan and a smoke outlet pipe. The pretreatment rack and the rack are tightly connected, the primary treatment component and the pretreatment rack are tightly connected, the secondary treatment component and the pretreatment rack are tightly connected, the fan and the pretreatment rack are tightly connected, the fan and the pretreatment rack are connected, the smoke outlet pipe and the fan are connected, the primary treatment component is located below the secondary treatment component, the primary treatment component and the secondary treatment component are connected, the primary treatment component is located in the pretreatment rack, and the secondary treatment component is located in the pretreatment rack.

[0010] By adopting the above technical scheme, the pretreatment mechanism is divided into a primary treatment component and a secondary treatment component, both of which are installed on the pretreatment frame, and the primary treatment component is located above the secondary treatment component. The primary treatment component is mainly used to capture larger particles and coarse particles. The cyclone separator separates the particles from the flue gas by centrifugal force. The treated flue gas flows upward to the secondary treatment component, where more delicate filtering materials or technologies are usually provided, such as an activated carbon layer or a denser filter mesh, to capture finer particles. The function of the fan is to maintain the flow of flue gas in the entire pretreatment mechanism. It is tightly connected to the pretreatment frame and ensures that the flue gas flowing from the primary treatment component to the secondary treatment component is effectively promoted. Finally, the treated and filtered flue gas is discharged through the smoke outlet pipe, which is directly connected to the fan to ensure smooth discharge of the flue gas. By treating the flue gas in a graded manner, the blockage and loss of the secondary treatment component by large particles is effectively reduced, the service life of the filter material is extended, and the filtration efficiency is improved. On the whole, this pretreatment mechanism can reduce the processing burden of the subsequent filtering mechanism, improve the economy and environmental protection effect of the entire system, and also reduce the frequency and cost of maintenance.

[0011] Furthermore, the primary processing component includes a cyclone separator, an air inlet pipe, a connecting pipe, an air outlet pipe and a first discharge valve, the connecting pipe is connected to the air inlet pipe, the connecting pipe is connected to the cyclone separator, the air outlet pipe is connected to the cyclone separator, the air outlet pipe is located above the cyclone separator, the cyclone separator is fastened to the pretreatment rack, the cyclone separator is located in the pretreatment rack, the cyclone separator is connected to the first discharge valve, and the first discharge valve is connected to the dust collection box.

[0012] By adopting the above technical solution, the cyclone separator plays a core role, using centrifugal force to separate particles and flue gas. The flue gas enters the cyclone separator through the air inlet pipe, and this pipe is connected to the cyclone separator through a connecting pipe. Inside the cyclone separator, the flue gas is forced to move along a rotating path. The heavier particles are thrown to the outer wall of the separator due to the action of centrifugal force. These particles are then discharged through the first discharge valve at the bottom and directly enter the dust box, while the lighter gas and tiny particles are discharged through the air outlet pipe located above the cyclone separator and continue to move to the next processing stage. The cyclone separator is tightly connected to the pretreatment frame to ensure the stability and durability of the equipment during operation. This configuration enables the cyclone separator to efficiently remove large particle impurities from the flue gas, reduce the burden on downstream filter components, and improve the filtration efficiency of the entire system. In this way, the system can effectively extend the service life of the filter material, reduce maintenance costs, and improve the economy of the filtration process. At the same time, this primary treatment also helps to protect subsequent components from damage by large particles, thereby ensuring the long-term stable operation of the entire system.

[0013] Furthermore, the secondary treatment component includes a filter screen, a placement plate, a reflux filter channel and a heating tube. The placement plate and the pretreatment frame are tightly connected. The filter screen and the placement plate are tightly connected. The reflux filter channel and the pretreatment frame are tightly connected. The reflux filter channel is connected to the exhaust pipe. The reflux filter channel is in the shape of an inverted triangular cone. The heating tube and the pretreatment frame are tightly connected.

[0014] By adopting the above technical solution, the placement plate not only provides support for the filter, but also facilitates the replacement and maintenance of the filter. In addition, the design of the reflux filter is an inverted triangular cone shape. This special shape helps to increase the contact time between the flue gas and the filter, thereby improving the efficiency of capturing tiny particles. One port of the reflux filter is connected to the exhaust pipe to ensure that the flue gas that has been initially filtered can pass through the filter smoothly, while the other end is fastened to the pretreatment rack to ensure the overall stability of the structure. The heating pipe is fastened to the pretreatment rack and runs through the entire secondary treatment component. The function of the heating pipe is to heat the passing flue gas. This can not only reduce the condensation of particulate matter that may be caused by temperature drop, but also improve the decomposition efficiency of harmful substances in the flue gas through thermal influence. Through this secondary treatment, the device can effectively capture and remove finer particles. At the same time, through the action of the heating pipe, the decomposition rate of harmful gases in the treatment process is improved, further reducing the burden of subsequent filter components, and improving the filtration efficiency and treatment quality of the entire system. This design not only ensures efficient purification of flue gas, but also reduces operating costs through technical optimization, and increases the economic and environmental benefits of the equipment.

[0015] Furthermore, the filtering mechanism includes a filter frame, a filter assembly, a vibrator, a cleaning assembly, an airflow differentiation assembly and a second discharge valve. The filter frame and the filter assembly are fastened together, the vibrator and the filter frame are fastened together, the vibrator and the filter assembly are transmission-connected, the cleaning assembly and the filter frame are fastened together, and the second discharge valve and the filter frame are connected.

[0016] By adopting the above technical solution, the filter assembly is responsible for capturing fine particles and achieving the purpose of filtering through physical blocking and surface adsorption. The vibrator can regularly apply vibration to the filter assembly through transmission connection with the filter frame and the filter assembly to help remove dust attached to the filter material, reduce blockage, and extend the service life of the filter material. The cleaning assembly is installed on the filter frame to regularly clean the dust on the filter assembly by mechanical or automatic means to maintain the filtering efficiency. The airflow differentiation assembly controls and optimizes the airflow distribution entering the filter assembly to ensure that the flue gas passes through the filter material evenly and prevents local overload, thereby improving the overall filtering efficiency and the processing capacity of the system, so that the filtering mechanism can not only effectively capture and remove fine particles in the flue gas, but also reduce the maintenance frequency and cost through regular cleaning through the combination of flue gas waste heat and vibration, and improve the use efficiency and life of the filter assembly. The addition of the airflow differentiation assembly further optimizes the dynamic characteristics of the airflow, achieves a more uniform airflow distribution by changing the angle and position of the air intake, reduces the impact and resistance of the local high-speed airflow on the filter bag, enhances the filtering performance of the overall system, and achieves the effect of improving air quality and reducing emission pollution. While ensuring the processing efficiency, it also enhances the economy and environmental benefits of the system.

[0017] Furthermore, the filter assembly includes an inner filter bag, an outer filter bag, a rotating plate, a folding plate, a rotating motor and a folding motor. The inner filter bag and the first rotating plate are slidingly connected, the rotating motor and the first rotating plate are transmission-connected, the rotating motor and the filter frame are firmly connected, the first rotating plate and the inner filter bag are transmission-connected, the folding motor and the filter frame are firmly connected, the folding motor and the folding plate are transmission-connected, and the inner filter bag and the folding plate are slidingly connected.

[0018] By adopting the above technical solution, the double-layer filter bag system combines the mechanical actions of the rotating plate and the folding plate to improve the filtering efficiency and automatic cleaning function of the filter bag. The inner filter bag and the outer filter bag respectively capture particles of different sizes, wherein the inner filter bag is connected to the first rotating plate through a sliding connection, and can be rotated under the drive of the rotating motor. This rotation action helps to evenly distribute the dust and reduce local wear and blockage of the filter bag. The rotating motor is tightly connected to the filter frame and is connected to the first rotating plate through a transmission device to ensure the stability and efficiency of the rotation. At the same time, the folding plate is controlled by the folding motor and is slidably connected to the inner filter bag, so that the shape and area of ​​the filter bag can be adjusted when necessary. Adapting to different filtering needs or performing self-cleaning, this dynamic adjustment capability enables the filter bag to maintain efficient filtering performance in long-term operation, while reducing the blockage problem caused by particle accumulation. Through this design, the filter component can not only effectively capture more and finer particles, but also automatically maintain the best working state through built-in mechanical actions, significantly improving the overall operating efficiency and maintenance convenience of the system. The ultimate effect is to significantly reduce operating costs, extend the service life of the equipment, and maintain a continuously high filtering efficiency. The implementation of this filter component provides an efficient and economical solution for dealing with high-load or high-dust industrial emissions.

[0019] Furthermore, the inner filter bag includes a first connecting rod, a second connecting rod, a third connecting rod, a fourth connecting rod, a fifth connecting rod, a sixth connecting rod, a magnetic filter bag, a folding rod and a rotating rod. The first connecting rod and the third connecting rod are hinged, the first connecting rod and the fourth connecting rod are hinged, the second connecting rod and the fifth connecting rod are hinged, the second connecting rod and the sixth connecting rod are hinged, the third connecting rod and the magnetic filter bag are socketed, the fourth connecting rod and the magnetic filter bag are socketed, the fifth connecting rod and the magnetic filter bag are socketed, the sixth connecting rod and the magnetic filter bag are socketed, the folding rod and the magnetic filter bag are socketed, the rotating rod and the magnetic filter bag are socketed, a limiting block is installed on the third connecting rod, the limiting block and the third connecting rod are rotatably connected, the limiting block and the fifth connecting rod are rotatably connected, the limiting block and the folding rod are hinged, the folding rod and the folding plate are slidably connected, the rotating rod and the rotating plate are slidably connected, the folding plate is provided with a folding groove, the folding rod and the folding groove are slidably connected, the rotating plate is provided with a rotating groove, and the rotating rod and the rotating groove are slidably connected.

[0020] By adopting the above technical solution, the inner filter bag includes multiple connecting rods (a first connecting rod, a second connecting rod, a third connecting rod, a fourth connecting rod, a fifth connecting rod, and a sixth connecting rod), a magnetic filter bag, and a folding rod and a rotating rod for adjusting the shape of the filter bag. These connecting rods are connected to each other by hinges and sockets, allowing the filter bag to perform various dynamic adjustments during operation, such as unfolding, folding, and rotation. The connecting rods are connected in a hinged manner to form a flexible frame structure. These rods are tightly socketed with the magnetic filter bag to ensure the integrity and sealing of the filter bag. The use of magnetic filter bags can utilize magnetic force to absorb ferrous dust particles and improve filtration efficiency. The folding rod and the rotating rod are connected to limit blocks, which are installed on the connecting rods to allow the filter bag to be in different operating stages. The shape of the filter bag can be maintained or changed in the segment. For example, the folding groove of the folding plate and the rotating groove of the rotating plate are connected by sliding to realize the folding and rotation of the filter bag, so that the filter bag can automatically adjust its shape according to specific filtering needs or cleaning processes. For example, when it is necessary to increase the filtering area or improve the uniformity of smoke passing through, the filter bag can be unfolded or rotated. When the filter bag needs to be cleaned, the surface of the filter bag can be knocked by folding and rotating actions to remove attached dust. This mechanical adjustment ability improves the filter bag by increasing the filtering area of ​​the filter bag and reducing the smoke resistance, thereby achieving the effect of extending the service life of the filter bag, reducing operation and maintenance costs and improving the filtering efficiency. At the same time, the use of magnetic filter bags further improves the filtering efficiency of ferrous substances, making the entire filtration system more efficient and environmentally friendly.

[0021] Furthermore, the cleaning component includes a cleaning motor, a cleaning frame, a conveying motor, a cleaning disc, a sliding rod and a screw rod. The cleaning motor and the filter frame are fastened together, the cleaning motor and the cleaning frame are transmission-connected, the conveying motor and the cleaning frame are fastened together, the conveying motor and the screw rod are transmission-connected, the screw rod and the cleaning disc are transmission-connected, and the sliding rod and the cleaning disc are slidingly connected.

[0022] By adopting the above technical solution, the cleaning motor is fastened to the filter frame and is connected to the cleaning frame by transmission, so that the cleaning frame can be moved as needed to achieve the best cleaning effect. The transmission motor is also fastened to the cleaning frame and is connected to the screw rod by transmission. The screw rod is further connected to the cleaning disc by transmission to drive the cleaning disc to perform a rotating cleaning action. The slide bar is slidably connected to the cleaning disc to support the smooth movement of the cleaning disc. The specific implementation method involves activating the cleaning motor to drive the cleaning frame to move along the filter assembly, while the transmission motor drives the cleaning disc to rotate and slide along the surface of the filter bag through the screw rod and slide bar system to mechanically remove the attached dust and particles. This configuration makes the cleaning process not only efficient, but also reduces manual intervention, ensuring that the filtering equipment continues to operate in the best state. The working principle is based on mechanical cleaning and automatic transmission. The filter bag is kept clean by regular and systematic cleaning, avoiding the decrease in filtration efficiency and potential damage to the filter bag due to particle accumulation. The effect achieved is to significantly improve the operating efficiency and reliability of the entire filtration system, reduce maintenance requirements and operating costs, and maintain long-term environmental protection and economic benefits.

[0023] Furthermore, the airflow differentiation component includes an airflow rack, a fan plate, a fan rod, a belt and an airflow motor. The airflow rack and the filter rack are fastened together, the airflow motor and the airflow rack are fastened together, the airflow motor and the belt are transmission-connected, the belt and the fan rod are transmission-connected, the fan rod and the fan plate are transmission-connected, and the fan rod and the airflow rack are rotationally connected.

[0024] By adopting the above technical solution, the airflow frame is firmly connected to the filter frame to ensure the stability of the overall structure. The airflow motor is connected to the fan rod through a belt transmission, driving the fan rod to rotate, and the fan rod drives the fan plate to rotate through a rotating connection, effectively adjusting the direction and intensity of the airflow, activating the airflow motor, and transmitting power to the fan rod through the belt transmission system. Then the fan rod drives the fan plate to rotate in the airflow frame. This setting allows the fan plate to adjust its position as needed, thereby changing the airflow path through the filter device, ensuring that the airflow passes through the filter medium evenly, avoiding premature wear or reduced efficiency of the filter material caused by concentrated airflow. Based on the dynamic adjustment of the airflow path, the rotation of the fan plate is used to disperse or concentrate the airflow, which helps to evenly distribute the smoke load and improve the use efficiency and life of each part of the filter material. The effect achieved is that by controlling the airflow, not only the filtration efficiency is improved, but also the service life of the filter material is extended, while reducing the overall energy consumption and operation and maintenance costs of the system, and improving the economy and reliability of the equipment.

[0025] Compared with the prior art, the beneficial effects achieved by the utility model are as follows: by adding a flue gas pretreatment mechanism before filtration and using a cyclone separator to pre-remove larger particles, the technology effectively reduces the burden of the subsequent filtration mechanism and reduces the resistance. In the filtration mechanism, the inner filter bag is equipped with multiple hinged and sleeved connecting rods, plus a magnetic filter bag and a dynamically adjusted folding rod and a rotating rod, so that the filter bag can dynamically adjust its shape according to the specific filtration requirements or cleaning process of the flue gas, such as unfolding, folding and rotating. This flexible frame structure ensures the integrity and sealing of the filter bag, while using magnetic force to adsorb iron dust particles, significantly improving the filtration efficiency. In addition, the dynamic adjustment capability of the filter bag allows the filtration area to be increased according to the filtration needs, thereby reducing the resistance of the flue gas and extending the service life of the filter bag, while reducing maintenance costs. The cleaning component is connected to the cleaning frame on the filter bag frame through a cleaning motor, driving the cleaning frame to move along the filter bag to remove the dust adhering to the surface of the filter bag and maintain the efficient operation of the filter bag. This mechanical cleaning method avoids the decrease in filtration efficiency and potential damage to the filter bag caused by particle accumulation. The airflow motor in the airflow differentiation component drives the fan rod and fan plate to rotate through the belt system, adjusting the airflow path to evenly distribute the flue gas load, and further reducing local wear of the filter material. Through this dynamic adjustment, the system not only improves the filtration efficiency, but also extends the service life of the filter material and reduces energy consumption and operation and maintenance costs. In addition, by using the waste heat of the exhaust flue gas to heat the filter bag, the cleaning operation is simplified, the frequency and complexity are reduced, and the economic benefits and environmental protection effects of the system are ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0027] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0028] Figure 2 It is a schematic diagram of the structure of the pretreatment mechanism of the utility model;

[0029] Figure 3 It is a schematic diagram of the structure of the primary processing component of the utility model;

[0030] Figure 4 It is a schematic diagram of the structure of the secondary processing component of the utility model;

[0031] Figure 5 It is a schematic diagram of the structure of the filtering mechanism of the utility model;

[0032] Figure 6 It is a schematic diagram of the structure of the filter assembly of the utility model;

[0033] Figure 7 This is a schematic diagram of the structure of the inner filter bag of the utility model;

[0034] Figure 8 It is a schematic diagram of the structure of the rotating groove and the folding groove of the utility model;

[0035] Fig. 9 It is a schematic diagram of the cleaning component structure of the utility model;

[0036] Fig.10 It is a schematic diagram of the structure of the airflow differentiation component of the utility model.

[0037] In the figure: 1, frame; 2, pretreatment mechanism; 21, pretreatment frame; 22, primary treatment component; 221, cyclone separator; 222, air inlet pipe; 223, connecting pipe; 224, air outlet pipe; 225, first discharge valve; 23, secondary treatment component; 231, filter screen; 232, placement plate; 233, reflux filter channel; 234, heating pipe; 24, fan; 25, smoke outlet pipe; 3, filter mechanism; 31, filter frame; 32, filter assembly; 321, inner filter bag; 3211, first connecting rod; 3212, second connecting rod; 3213, third connecting rod; 32131, limit block; 3214, fourth connecting rod; 3215, fifth connecting rod rod; 3216, the sixth connecting rod; 3217, the magnetic filter bag; 3218, the folding rod; 3219, the rotating rod; 322, the outer filter bag; 323, the rotating plate; 3231, the rotating groove; 324, the folding plate; 3241, the folding groove; 325, the rotating motor; 326, the folding motor; 33, the vibrator; 34, the cleaning component; 341, the cleaning motor; 342, the cleaning frame; 343, the conveying motor; 344, the cleaning disc; 345, the sliding rod; 346, the screw rod; 35, the air flow differentiation component; 351, the air flow frame; 352, the fan plate; 353, the fan rod; 354, the belt; 355, the air flow motor; 36, the second discharge valve; 4, the dust collection box. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0039] See also Figure 1-10 Figure, the utility model provides a technical solution:

[0040] A filtering device for reducing smoke resistance includes a frame 1, a pretreatment mechanism 2, a filtering mechanism 3 and a dust box 4, the pretreatment mechanism 2 and the frame 1 are tightly connected, the filtering mechanism 3 and the frame 1 are tightly connected, the dust box 4 and the pretreatment mechanism 2 are connected, the filtering mechanism 3 and the dust box 4 are connected, the dust box 4 is located below the pretreatment mechanism 2, the dust box 4 is located below the filtering mechanism 3, and the pretreatment mechanism 2 and the filtering mechanism 3 are connected.

[0041] By adopting the above technical solution, the pretreatment mechanism 2, the filtering mechanism 3 and the dust box 4 are all fastened to the supporting frame 1 to form a stable working system. The pretreatment mechanism 2 is responsible for the preliminary treatment of the incoming flue gas, and removes larger particles and dust through the primary treatment component 22 and the secondary treatment component 23, effectively reducing the processing pressure of the subsequent filtering mechanism 3. The treated flue gas then enters the filtering mechanism 3, where inner and outer double-layer filter bags are used for finer filtration. The inner filter bag 321 is responsible for capturing tiny particles, while the outer filter bag 322 processes larger particles. The filtered flue gas is guided to the smoke outlet pipe 25 through the fan 24 for discharge, and the dust box 4 collects the pretreatment and secondary treatment components. The dust and particles that fall off during the filtering process are collected by a dust box 4 at the bottom of the entire device to facilitate dust collection and cleaning. It starts from the pretreatment mechanism 2, where the cyclone separator 221 and the filter screen 231 first remove most of the coarse dust to protect the internal structure from wear. Then the flue gas enters the filtering mechanism 3 and is purified at a deeper level through a complex filter bag system. The cleaning component 34 and the airflow differentiation component 35 play a role in the process. The former cleans the filter bag regularly, and the latter optimizes the airflow distribution, greatly reducing the resistance of the flue gas and improving the overall filtering efficiency. It not only improves the filtering accuracy, but also increases the economic benefits and environmental protection effects by reducing maintenance requirements and extending the life of the equipment.

[0042] Furthermore, the pretreatment mechanism 2 includes a pretreatment rack 21, a primary treatment component 22, a secondary treatment component 23, a fan 24 and a smoke outlet pipe 25. The pretreatment rack 21 is fastened to the rack 1, the primary treatment component 22 is fastened to the pretreatment rack 21, the secondary treatment component 23 is fastened to the pretreatment rack 21, the fan 24 is fastened to the pretreatment rack 21, the fan 24 is communicated with the pretreatment rack 21, the smoke outlet pipe 25 is communicated with the fan 24, the primary treatment component 22 is located below the secondary treatment component 23, the primary treatment component 22 is communicated with the secondary treatment component 23, the primary treatment component 22 is located in the pretreatment rack 21, and the secondary treatment component 23 is located in the pretreatment rack 21.

[0043] By adopting the above technical scheme, the pretreatment mechanism 2 is divided into a primary treatment component 22 and a secondary treatment component 23, both of which are installed on the pretreatment frame 21, and the primary treatment component 22 is located above the secondary treatment component 23. The primary treatment component 22 is mainly used to capture larger particles and coarse particles. The cyclone separator 221 and the like separate the particles from the flue gas through centrifugal force, and the treated flue gas flows upward to the secondary treatment component 23, where more detailed filtering materials or technologies are usually provided, such as an activated carbon layer or a denser filter mesh 231, for capturing finer particles. The function of the fan 24 is to maintain the flow of flue gas in the entire pretreatment mechanism 2. It is tightly connected to the pretreatment frame 21 and ensures that the flue gas flowing from the primary treatment component 22 to the secondary treatment component 23 is effectively pushed. Finally, the treated and filtered flue gas is discharged through the smoke outlet pipe 25, and the smoke outlet pipe 25 is directly connected to the fan 24 to ensure the smooth discharge of the smoke. By treating the smoke in a graded manner, the blockage and loss of the secondary treatment component 23 by large particles is effectively reduced, the service life of the filter material is extended, and the filtration efficiency is improved. On the whole, this pretreatment mechanism 2 can reduce the processing burden of the subsequent filtering mechanism 3, improve the economy and environmental protection effect of the entire system, and also reduce the frequency and cost of maintenance.

[0044] Furthermore, the primary treatment component 22 includes a cyclone separator 221, an air inlet pipe 222, a connecting pipe 223, an air outlet pipe 224 and a first discharge valve 225. The connecting pipe 223 is connected to the air inlet pipe 222, the connecting pipe 223 is connected to the cyclone separator 221, the air outlet pipe 224 is connected to the cyclone separator 221, the air outlet pipe 224 is located above the cyclone separator 221, the cyclone separator 221 is fastened to the pretreatment rack 21, the cyclone separator 221 is located in the pretreatment rack 21, the cyclone separator 221 is connected to the first discharge valve 225, and the first discharge valve 225 is connected to the dust box 4.

[0045] By adopting the above technical solution, the cyclone separator 221 plays a core role, using centrifugal force to separate particles and smoke. The smoke enters the cyclone separator 221 through the air inlet pipe 222, and the pipe is directly connected to the cyclone separator 221 through the connecting pipe 223. Inside the cyclone separator 221, the smoke is forced to move along the rotating path. The heavier particles are thrown to the outer wall of the separator due to the centrifugal force. These particles are then discharged through the first discharge valve 225 at the bottom and directly enter the dust box 4, while the lighter gas and tiny particles are discharged through the outlet pipe 22 located above the cyclone separator 221. 4 is discharged and continues to move to the next processing stage. The cyclone separator 221 is tightly connected to the pretreatment frame 21 to ensure the stability and durability of the equipment during operation. This configuration enables the cyclone separator 221 to efficiently remove large particle impurities from the flue gas, reduce the burden on the downstream filter component 32, and improve the filtration efficiency of the entire system. In this way, the system can effectively extend the service life of the filter material, reduce maintenance costs, and improve the economy of the filtration process. At the same time, this primary treatment also helps to protect subsequent components from damage by large particles, thereby ensuring the long-term stable operation of the entire system.

[0046] Furthermore, the secondary treatment component 23 includes a filter screen 231, a placement plate 232, a reflux filter channel 233 and a heating pipe 234. The placement plate 232 and the pretreatment rack 21 are fastened together, the filter screen 231 and the placement plate 232 are fastened together, the reflux filter channel 233 and the pretreatment rack 21 are fastened together, the reflux filter channel 233 and the exhaust pipe 224 are connected, the reflux filter channel 233 is in the shape of an inverted triangular cone, and the heating pipe 234 and the pretreatment rack 21 are fastened together.

[0047] By adopting the above technical solution, the placement plate 232 not only provides support for the filter 231, but also facilitates the replacement and maintenance of the filter 231. In addition, the design of the reflux filter 233 is an inverted triangular cone shape, which helps to increase the contact time between the smoke and the filter 231, thereby improving the efficiency of capturing tiny particles. One port of the reflux filter 233 is connected to the exhaust pipe 224 to ensure that the flue gas that has undergone preliminary filtration can pass through the filter 231 smoothly, while the other end is fastened to the pretreatment frame 21 to ensure the overall stability of the structure. The heating pipe 234 is fastened to the pretreatment frame 21 and runs through the entire secondary treatment component 23. The function of the heating pipe 234 is to heat the passing flue gas. This not only reduces the condensation of particulate matter that may be caused by temperature drop, but also improves the decomposition efficiency of harmful substances in the flue gas through thermal influence. Through this secondary treatment, the device can effectively capture and remove finer particulate matter. At the same time, through the action of the heating pipe 234, the decomposition rate of harmful gases in the treatment process is improved, which further reduces the burden on the subsequent filter component 32 and improves the filtration efficiency and treatment quality of the entire system. This design not only ensures efficient purification of flue gas, but also reduces operating costs through technical optimization, and increases the economy and environmental benefits of the equipment.

[0048] Furthermore, the filtering mechanism 3 includes a filter frame 31, a filter assembly 32, a vibrator 33, a cleaning assembly 34, an air flow differentiation assembly 35 and a second discharge valve 36. The filter frame 31 and the filter assembly 32 are fastened together, the vibrator and the filter frame 31 are fastened together, the vibrator and the filter assembly 32 are transmission-connected, the cleaning assembly 34 and the filter frame 31 are fastened together, and the second discharge valve 36 and the filter frame 31 are connected.

[0049] By adopting the above technical solution, the filter assembly 32 is responsible for capturing fine particles and achieving the purpose of filtering through physical blocking and surface adsorption. The vibrator 33 can regularly apply vibration to the filter assembly 32 through the transmission connection with the filter frame 31 and the filter assembly 32 to help remove dust attached to the filter material, reduce blockage, and extend the service life of the filter material. The cleaning assembly 34 is installed on the filter frame 31 to regularly clean the dust on the filter assembly 32 by mechanical or automatic means to maintain the filtering efficiency. The airflow differentiation assembly 35 ensures that the smoke passes through the filter material evenly by controlling and optimizing the airflow distribution entering the filter assembly 32 to prevent local overload, thereby improving the quality of the filter. The high overall filtering efficiency and system processing capacity enable the filtering mechanism 3 to not only effectively capture and remove fine particles in the flue gas, but also reduce the maintenance frequency and cost through regular cleaning through the combination of flue gas waste heat and vibration, thereby improving the use efficiency and life of the filter component 32. The addition of the airflow differentiation component 35 further optimizes the dynamic characteristics of the airflow, achieves a more uniform airflow distribution by changing the angle and position of the air intake, reduces the impact and resistance of local high-speed airflow on the filter bag, and enhances the filtering performance of the overall system, achieving the effect of improving air quality and reducing emission pollution, ensuring the processing efficiency while also enhancing the economy and environmental benefits of the system.

[0050] Furthermore, the filter assembly 32 includes an inner filter bag 321, an outer filter bag 322, a rotating plate 323, a folding plate 324, a rotating motor 325 and a folding motor 326. The inner filter bag 321 and the first rotating plate 323 are slidingly connected, the rotating motor 325 and the first rotating plate 323 are transmission-connected, the rotating motor 325 and the filter frame 31 are fastenedly connected, the first rotating plate 323 and the inner filter bag 321 are transmission-connected, the folding motor 326 and the filter frame 31 are fastenedly connected, the folding motor 326 and the folding plate 324 are transmission-connected, and the inner filter bag 321 and the folding plate 324 are slidingly connected.

[0051] By adopting the above technical solution, the double-layer filter bag system combines the mechanical actions of the rotating plate 323 and the folding plate 324 to improve the filtering efficiency and automatic cleaning function of the filter bag. The inner filter bag 321 and the outer filter bag 322 respectively capture particles of different sizes, wherein the inner filter bag 321 can be rotated under the drive of the rotating motor 325 through the sliding connection with the first rotating plate 323. This rotation action helps to evenly distribute the dust and reduce local wear and blockage of the filter bag. The rotating motor 325 is tightly connected to the filter frame 31 and is connected to the first rotating plate 323 through a transmission device to ensure the stability and efficiency of the rotation. At the same time, the folding plate 324 is controlled by the folding motor 326 and is slidably connected to the inner filter bag 321. The shape and area of ​​the filter bag can be adjusted when necessary to adapt to different filtering needs or perform self-cleaning. This dynamic adjustment capability allows the filter bag to maintain efficient filtering performance during long-term operation, while reducing blockage problems caused by particle accumulation. Through this design, the filter component 32 can not only effectively capture more and finer particles, but also automatically maintain the optimal working state through built-in mechanical actions, significantly improving the overall operating efficiency and maintenance convenience of the system. The ultimate effect is to significantly reduce operating costs, extend the service life of the equipment, and maintain a continuously high filtering efficiency. The implementation of this filter component 32 provides an efficient and economical solution for processing high-load or high-dust industrial emissions.

[0052] Further, the inner filter bag 321 includes a first connecting rod 3211, a second connecting rod 3212, a third connecting rod 3213, a fourth connecting rod 3214, a fifth connecting rod 3215, a sixth connecting rod 3216, a magnetic filter bag 3217, a folding rod 3218 and a rotating rod 3219, the first connecting rod 3211 and the third connecting rod 3213 are hinged, the first connecting rod 3211 and the fourth connecting rod 3214 are hinged, the second connecting rod 3212 and the fifth connecting rod 3215 are hinged, the second connecting rod 3212 and the sixth connecting rod 3216 are hinged, the third connecting rod 3213 and the magnetic filter bag 3217 are sleeved, the fourth connecting rod 3214 and the magnetic filter bag 3217 are sleeved, the fifth connecting rod 3215 and the magnetic filter bag 3217 are sleeved, and the sixth connecting rod 3219 is hinged. The rod 3216 and the magnetic filter bag 3217 are socketed, the folding rod 3218 and the magnetic filter bag 3217 are socketed, the rotating rod 3219 and the magnetic filter bag 3217 are socketed, the third connecting rod 3213 is installed with a limit block 32131, the limit block 32131 and the third connecting rod 3213 are rotatably connected, the limit block 32131 and the fifth connecting rod 3215 are rotatably connected, the limit block 32131 and the folding rod 3218 are hinged, the folding rod 3218 and the folding plate 324 are slidably connected, the rotating rod 3219 and the rotating plate 323 are slidably connected, the folding plate 324 is provided with a folding groove 3241, the folding rod 3218 and the folding groove 3241 are slidably connected, the rotating plate 323 is provided with a rotating groove 3231, and the rotating rod 3219 and the rotating groove 3231 are slidably connected.

[0053] By adopting the above technical solution, the inner filter bag 321 includes multiple connecting rods (a first connecting rod 3211, a second connecting rod 3212, a third connecting rod 3213, a fourth connecting rod 3214, a fifth connecting rod 3215, and a sixth connecting rod 3216), a magnetic filter bag 3217, and a folding rod 3218 and a rotating rod 3219 for adjusting the shape of the filter bag. These connecting rods are connected to each other by hinges and sockets, allowing the filter bag to perform various dynamic adjustments during operation, such as unfolding, folding and rotating. The connecting rods are connected in a hinged manner to form a flexible frame structure. These rods are tightly socketed with the magnetic filter bag 3217 to ensure the integrity and sealing of the filter bag. The use of the magnetic filter bag 3217 can utilize magnetic force to absorb ferrous dust particles and improve the filtration efficiency. The folding rod 3218 and the rotating rod 3219 are connected to the limit blocks 32131. These limit blocks 32131 is installed on the connecting rod, allowing the filter bag to maintain or change its shape in different operation stages. For example, the folding groove 3241 of the folding plate 324 and the rotating groove 3231 of the rotating plate 323 are connected by sliding to realize the folding and rotation of the filter bag, so that the filter bag can automatically adjust its shape according to specific filtering needs or cleaning processes. For example, when it is necessary to increase the filtering area or improve the uniformity of smoke passage, the filter bag can be unfolded or rotated. When the filter bag needs to be cleaned, the surface of the filter bag can be knocked by folding and rotating actions to remove attached dust. This mechanical adjustment ability improves the filter bag by increasing the filtering area of ​​the filter bag and reducing the smoke resistance, thereby achieving the effect of extending the service life of the filter bag, reducing operation and maintenance costs and improving filtering efficiency. At the same time, the use of magnetic filter bags 3217 further improves the filtering efficiency of ferrous substances, making the entire filtering system more efficient and environmentally friendly.

[0054] Furthermore, the cleaning component 34 includes a cleaning motor 341, a cleaning frame 342, a conveying motor 343, a cleaning disc 344, a sliding rod 345 and a screw rod 346. The cleaning motor 341 is fixedly connected to the filter frame 31, the cleaning motor 341 is transmission-connected to the cleaning frame 342, the conveying motor 343 is fixedly connected to the cleaning frame 342, the conveying motor 343 is transmission-connected to the screw rod 346, the screw rod 346 is transmission-connected to the cleaning disc 344, and the sliding rod 345 is slidably connected to the cleaning disc 344.

[0055] By adopting the above technical solution, the cleaning motor 341 is fastened to the filter frame 31 and is in transmission connection with the cleaning frame 342, so that the cleaning frame 342 can be moved as needed to achieve the best cleaning effect. The transmission motor 343 is also fastened to the cleaning frame 342 and is connected to the screw rod 346 through transmission. The screw rod 346 is further connected to the cleaning disc 344 through transmission connection, driving the cleaning disc 344 to perform a rotational cleaning action. The slide bar 345 is slidably connected with the cleaning disc 344 to support the smooth movement of the cleaning disc 344. The specific implementation method involves activating the cleaning motor 341 to drive the cleaning frame 342 to move along the filter assembly 32, while the transmission motor 343 drives the cleaning disc 344 to rotate and slide along the surface of the filter bag through the screw rod 346 and the slide bar 345 system to mechanically remove the attached dust and particles. This configuration makes the cleaning process not only efficient, but also reduces manual intervention to ensure that the filtering equipment continues to operate in the best state. The working principle is based on mechanical cleaning and automatic transmission. The filter bag is kept clean through regular and systematic cleaning, avoiding the decrease in filtration efficiency and potential damage to the filter bag due to particle accumulation. The effect achieved is to significantly improve the operating efficiency and reliability of the entire filtration system, reduce maintenance requirements and operating costs, and maintain long-term environmental protection and economic benefits.

[0056] Furthermore, the airflow differentiation component 35 includes an airflow rack 351, a fan plate 352, a fan rod 353, a belt 354 and an airflow motor 355. The airflow rack 351 is fastened to the filter rack 31, the airflow motor 355 is fastened to the airflow rack 351, the airflow motor 355 is transmission-connected to the belt 354, the belt 354 is transmission-connected to the fan rod 353, the fan rod 353 is transmission-connected to the fan plate 352, and the fan rod 353 is rotationally connected to the airflow rack 351.

[0057] By adopting the above technical solution, the airflow frame 351 is fastened to the filter frame 31 to ensure the stability of the overall structure. The airflow motor 355 is connected to the fan rod 353 through the belt 354, driving the fan rod 353 to rotate, and the fan rod 353 drives the fan plate 352 to rotate through the rotation connection, effectively adjusting the direction and intensity of the airflow, activating the airflow motor 355, and transmitting the power to the fan rod 353 through the belt 354 transmission system, and then the fan rod 353 drives the fan plate 352 to rotate in the airflow frame 351. This setting allows the fan plate 352 to adjust its position as needed, thereby changing the airflow path through the filter device, ensuring that the airflow passes through the filter medium evenly, avoiding premature wear or reduced efficiency of the filter material caused by concentrated airflow, based on the dynamic adjustment of the airflow path, using the rotation of the fan plate 352 to disperse or concentrate the airflow, which helps to evenly distribute the smoke load and improve the use efficiency and life of each part of the filter material. The effect achieved is that by controlling the airflow, not only the filtration efficiency is improved, but also the service life of the filter material is extended, while reducing the overall energy consumption and operation and maintenance costs of the system, and improving the economy and reliability of the equipment.

[0058] The working principle of the utility model is as follows: the pre-treatment mechanism 2 is installed on the frame 1, and includes the primary and secondary treatment components 23. The smoke is pushed by the fan 24 to first pass through the cyclone separator 221 of the primary treatment component 22, and the centrifugal force is used to remove larger particles. Then the smoke flows to the secondary treatment component 23 above, and a finer filter mesh 231 is used for fine filtration. The pre-treated smoke enters the filter mechanism 3, where the double-layer filter bag system - the inner filter bag 321 and the outer filter bag 322 further capture fine particles. The filter mechanism 3 is equipped with a vibrator 33 and a cleaning component 34 to automatically remove dust from the filter bag to maintain air permeability and filtration efficiency. The inner filter bag 321 is a key component. It uses high-efficiency filter materials, such as polyester or polypropylene, and is specially designed to capture tiny particles. Structurally, the inner filter bag 321 is supported by multiple hinged connecting rods to form a flexible frame to accommodate dynamic adjustments. The magnetic filter bag 3217 can adsorb ferrous dust. The folding rod 3218 and the rotating rod 3219 adjust the shape of the filter bag, optimize the filtration area, and increase the contact area with the flue gas by automatically adjusting the shape, thereby improving the filtration efficiency. The limit block 32131 is installed on the connecting rod, allowing the filter bag to maintain or change shape in different operating stages, thereby improving operational flexibility and efficiency. The airflow differentiation component 35 adjusts the direction of the inlet air through the fan plate 352, optimizes the airflow distribution, and reduces local overload. The dust box 4 is located at the bottom of the device to collect the fallen dust and particles for easy processing and cleaning. This configuration not only reduces the burden on the subsequent filtering mechanism 3 and prevents the filter material from rapid wear and clogging, but also captures particles through the double-layer filter bag system. The use of the vibrator 33 and the cleaning component 34 extends the service life of the filter material and reduces maintenance requirements. Ultimately, by precisely controlling the flue gas flow, combined with automatic cleaning and wear reduction strategies, the filtering efficiency is significantly improved and environmental pollution is reduced.

[0059] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0060] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A filter device for reducing smoke resistance, characterized in that: The filtering device for reducing smoke resistance comprises a frame (1), a pretreatment mechanism (2), a filtering mechanism (3) and a dust box (4); the pretreatment mechanism (2) and the frame (1) are tightly connected; the filtering mechanism (3) and the frame (1) are tightly connected; the dust box (4) and the pretreatment mechanism (2) are connected; the filtering mechanism (3) and the dust box (4) are connected; the dust box (4) is located below the pretreatment mechanism (2); the dust box (4) is located below the filtering mechanism (3); the pretreatment mechanism (2) and the filtering mechanism (3) are connected.

2. A filter device for reducing smoke resistance according to claim 1, characterized in that: The pretreatment mechanism (2) comprises a pretreatment frame (21), a primary treatment component (22), a secondary treatment component (23), a fan (24) and a smoke outlet pipe (25); the pretreatment frame (21) is tightly connected to the frame (1); the primary treatment component (22) is tightly connected to the pretreatment frame (21); the secondary treatment component (23) is tightly connected to the pretreatment frame (21); the fan (24) is tightly connected to the pretreatment frame (21); the fan (24) and the pretreatment frame (21) are in communication; the smoke outlet pipe (25) and the fan (24) are in communication; the primary treatment component (22) is located below the secondary treatment component (23); the primary treatment component (22) and the secondary treatment component (23) are in communication; the primary treatment component (22) is located inside the pretreatment frame (21); and the secondary treatment component (23) is located inside the pretreatment frame (21).

3. A filter device for reducing smoke resistance according to claim 2, characterized in that: The primary treatment component (22) comprises a cyclone separator (221), an air inlet pipe (222), a connecting pipe (223), an air outlet pipe (224) and a first discharge valve (225); the connecting pipe (223) is in communication with the air inlet pipe (222); the connecting pipe (223) is in communication with the cyclone separator (221); the air outlet pipe (224) is in communication with the cyclone separator (221); the air outlet pipe (224) is located above the cyclone separator (221); the cyclone separator (221) is firmly connected to the pretreatment rack (21); the cyclone separator (221) is located inside the pretreatment rack (21); the cyclone separator (221) is in communication with the first discharge valve (225); and the first discharge valve (225) is in communication with the dust collecting box (4).

4. A filter device for reducing smoke resistance according to claim 3, characterized in that: The secondary treatment component (23) comprises a filter screen (231), a placement plate (232), a reflux filter channel (233) and a heating pipe (234); the placement plate (232) and the pretreatment rack (21) are tightly connected; the filter screen (231) and the placement plate (232) are tightly connected; the reflux filter channel (233) and the pretreatment rack (21) are tightly connected; the reflux filter channel (233) and the air outlet pipe (224) are in communication; the reflux filter channel (233) is in the shape of an inverted triangular cone; and the heating pipe (234) and the pretreatment rack (21) are tightly connected.

5. The filter device for reducing smoke resistance according to claim 1, characterized in that: The filtering mechanism (3) comprises a filter frame (31), a filter assembly (32), a vibrator (33), a cleaning assembly (34), an air flow differentiation assembly (35) and a second discharge valve (36); the filter frame (31) and the filter assembly (32) are tightly connected; the vibrator (33) and the filter frame (31) are tightly connected; the vibrator (33) and the filter assembly (32) are transmission-connected; the cleaning assembly (34) and the filter frame (31) are tightly connected; and the second discharge valve (36) and the filter frame (31) are in communication.

6. A filter device for reducing smoke resistance according to claim 5, characterized in that: The filter assembly (32) comprises an inner filter bag (321), an outer filter bag (322), a rotating plate (323), a folding plate (324), a rotating motor (325) and a folding motor (326); the inner filter bag (321) and the first rotating plate (323) are slidably connected; the rotating motor (325) and the first rotating plate (323) are transmission-connected; the rotating motor (325) and the filter frame (31) are fixedly connected; the first rotating plate (323) and the inner filter bag (321) are transmission-connected; the folding motor (326) and the filter frame (31) are fixedly connected; the folding motor (326) and the folding plate (324) are transmission-connected; and the inner filter bag (321) and the folding plate (324) are slidably connected.

7. A filter device for reducing smoke resistance according to claim 6, characterized in that: The inner filter bag (321) comprises a first connecting rod (3211), a second connecting rod (3212), a third connecting rod (3213), a fourth connecting rod (3214), a fifth connecting rod (3215), a sixth connecting rod (3216), a magnetic filter bag (3217), a folding rod (3218) and a rotating rod (3219), wherein the first connecting rod (3211) and the third connecting rod (3213) are hingedly connected, and the first connecting rod (3211) and the fourth connecting rod (3214) are hingedly connected. The connecting rod (3214) is hinged, the second connecting rod (3212) and the fifth connecting rod (3215) are hinged, the second connecting rod (3212) and the sixth connecting rod (3216) are hinged, the third connecting rod (3213) and the magnetic filter bag (3217) are sleeved, the fourth connecting rod (3214) and the magnetic filter bag (3217) are sleeved, the fifth connecting rod (3215) and the magnetic filter bag (3217) are sleeved, and the sixth connecting rod (3216) The folding rod (3218) is sleeved with the magnetic filter bag (3217), the rotating rod (3219) is sleeved with the magnetic filter bag (3217), a limiting block (32131) is installed on the third connecting rod (3213), the limiting block (32131) is rotatably connected to the third connecting rod (3213), the limiting block (32131) is rotatably connected to the fifth connecting rod (3215), and the limiting block (32131) is rotatably connected to the fifth connecting rod (3215). ) and the folding rod (3218) are hinged, the folding rod (3218) and the folding plate (324) are slidably connected, the rotating rod (3219) and the rotating plate (323) are slidably connected, the folding plate (324) is provided with a folding groove (3241), the folding rod (3218) and the folding groove (3241) are slidably connected, the rotating plate (323) is provided with a rotating groove (3231), and the rotating rod (3219) and the rotating groove (3231) are slidably connected.

8. The filter device for reducing smoke resistance according to claim 5, characterized in that: The cleaning assembly (34) comprises a cleaning motor (341), a cleaning frame (342), a conveying motor (343), a cleaning disc (344), a sliding rod (345) and a screw rod (346); the cleaning motor (341) and the filter frame (31) are fixedly connected; the cleaning motor (341) and the cleaning frame (342) are transmission-connected; the conveying motor (343) and the cleaning frame (342) are fixedly connected; the conveying motor (343) and the screw rod (346) are transmission-connected; the screw rod (346) and the cleaning disc (344) are transmission-connected; and the sliding rod (345) and the cleaning disc (344) are slidably connected.

9. The filter device for reducing smoke resistance according to claim 5, characterized in that: The airflow differentiation component (35) comprises an airflow frame (351), a fan plate (352), a fan rod (353), a belt (354) and an airflow motor (355); the airflow frame (351) and the filter frame (31) are fixedly connected; the airflow motor (355) and the airflow frame (351) are fixedly connected; the airflow motor (355) and the belt (354) are transmission-connected; the belt (354) and the fan rod (353) are transmission-connected; the fan rod (353) and the fan plate (352) are transmission-connected; and the fan rod (353) and the airflow frame (351) are rotationally connected.

Images