Air filtering system for wood board processing plant

Abstract

The invention relates to the technical field of plant air treatment, in particular to a wood board processing plant air filtering system which comprises a shell and a filtering module, and an air inlet cavity and an exhaust cavity which are isolated from each other are formed in the shell; the filter module comprises at least one filter unit, the filter unit comprises a dust removal bag body and a keel, and the dust removal bag body is provided with a main body part located in the air inlet cavity and an outlet part located in the exhaust cavity; the keel is of an elastic spiral structure and is inserted into the dust removal bag body, the first end of the keel is fixedly arranged, and the second end of the keel can slide in a reciprocating mode in the axial direction of the dust removal bag body so that the contact position between the keel and the inner circumferential wall of the dust removal bag body can be changed by changing the diameter of the keel. Therefore, the same position of the dust removal bag body is prevented from making contact with the keel for a long time, the utilization rate of the dust removal bag body is guaranteed, meanwhile, the service life of the dust removal bag body is prolonged, and the air filtering cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of plant air treatment, in particular to an air filtering system for a wood board processing plant. Background Art

[0002] Wood board processing is a processing method that uses wood as raw material and applies mechanical or chemical methods. In the process of wood board processing, due to the requirements of shape, color and performance, it is often necessary to cut, grind, spray and other operations on the wood, which will produce sawdust, scraps, grinding dust and paint impurities and other additional products. If they are not removed and directly discharged, they will not only cause harm to the human body and the environment, but also do not conform to the development concept of advanced environmental protection industry.

[0003] Advanced environmental protection industry refers to the industry that saves energy and resources, develops circular economy, protects the ecological environment, and provides material basis and technical support. It includes the production and operation of environmental protection equipment and environmental protection products using advanced technologies, environmental protection technology integration and related service industries. In recent years, influenced by factors such as national economic development, environmental protection policy orientation and industry technological innovation, my country's advanced environmental protection industry has developed rapidly as a whole.

[0004] In the related art, in order to make the air in the wood board processing plant meet the emission standards and meet the development needs of the advanced environmental protection industry, the air in the wood board processing plant is often filtered through air filtering equipment. For example, the Chinese reference document with announcement number CN110917753B discloses an industrial dust bag dust collector. In the process of filtering the air, the industrial dust bag dust collector drives all the scraper rings to move vertically downward along the guide rod, and in the process of vertical downward movement, it can close to the inner wall of the dust bag body to scrape and push down the accumulated dust attached to the inner wall, thereby effectively cleaning the accumulated dust and allowing the dust bag to return to a more ideal dust removal state.

[0005] Although the above-mentioned industrial dust bag dust collector has improved the efficiency of air filtration to a certain extent, it is found in actual use that the contact part between the dust bag and the keel is blocked, which may easily lead to the inability to perform filtering work. In addition, long-term contact between the same part of the dust bag and the keel will accelerate the aging of the dust bag and increase the cost of air treatment. Summary of the invention

[0006] Based on this, it is necessary to provide an air filtration system for a wood board processing plant to address the problems of low dust bag utilization and easy aging in the current plant air purification.

[0007] The above purpose is achieved through the following technical solutions:

[0008] An air filtration system for a wood board processing plant, the air filtration system for a wood board processing plant comprising:

[0009] A housing, wherein an air intake chamber and an exhaust chamber isolated from each other are arranged inside the housing;

[0010] A filter module, wherein the filter module comprises at least one filter unit, wherein the filter unit comprises a dust bag body and a keel, wherein the dust bag body has a main portion located in the air inlet chamber and an outlet portion located in the exhaust chamber; the keel is configured to have an elastic spiral structure and is inserted into the dust bag body, wherein the first end of the keel is fixedly disposed, and the second end of the keel can slide back and forth along the axial direction of the dust bag body so as to change the contact position between the keel and the inner circumferential wall of the dust bag body by changing its own diameter.

[0011] Furthermore, the wood board processing plant air filtration system also includes a mounting seat and a support rod, the mounting seat is fixedly arranged at the outlet part; the first end of the support rod is fixedly arranged on the mounting seat, and the second end is suspended and inserted inside the dust removal bag body, and the support rod and the dust removal bag body are coaxially arranged; the first end of the keel is fixedly arranged at the second end of the support rod.

[0012] Furthermore, the filter unit further comprises a driving mechanism, and the driving mechanism is configured to provide a driving force for lengthening the keel.

[0013] Furthermore, the driving mechanism includes a fan, a sleeve, a transmission assembly and a trigger assembly, the fan is arranged on the mounting seat and can rotate around its own axis; the sleeve is inserted into the dust bag body and can rotate synchronously with the fan under the action of the transmission assembly; a sliding seat is provided at the second end of the keel, the sliding seat is sleeved on the outside of the sleeve, and can rotate synchronously with the sleeve under the action of the trigger assembly to lengthen the keel.

[0014] Furthermore, the transmission assembly includes a first gear, a second gear, a third gear and a ring gear, the first gear is fixedly sleeved on the transmission shaft of the fan; the second gear and the third gear are coaxially arranged, and are both arranged on the mounting seat, and can rotate synchronously; the ring gear is coaxially arranged inside the sleeve; the first gear and the second gear are meshingly connected, and the third gear and the ring gear are meshingly connected to transmit the rotation of the fan to the sleeve.

[0015] Furthermore, the trigger assembly includes an electromagnet and a magnetic sliding block, the electromagnet is arranged inside the sleeve; the sliding block is inserted into the sleeve and can slide elastically along the radial direction of the sleeve so that when the electromagnet is energized, it is clamped on the sliding seat under the action of repulsive force.

[0016] Furthermore, there are two keels, which are symmetrically arranged about the axis of the dust removal bag body.

[0017] Furthermore, a filter unit is provided inside the air inlet chamber, and the filter unit is configured to filter the air before the filter module filters the air.

[0018] Furthermore, the wood board processing plant air filtration system also includes a cleaning unit, and the cleaning unit is configured to clean the filter unit.

[0019] Furthermore, a collecting hopper is provided at the bottom of the shell, and the collecting hopper is configured to collect impurities cleaned by the cleaning part.

[0020] The beneficial effects of the present invention are:

[0021] In an air filtration system for a wood board processing plant provided by the present invention, during the process of filtering the air in a wood board processing plant, the air first enters the air intake chamber from the plant, and then passes through the main part of the dust removal bag body to filter out the impurity particles contained therein, and then enters the exhaust chamber from the outlet part of the dust removal bag body, and then is discharged from the exhaust chamber to the external environment. At the same time, the second end of the keel slides back and forth along the axial direction of the dust removal bag body under the action of external force, and while periodically changing its own diameter, it continuously changes the contact position with the inner circumferential wall of the dust removal bag body to avoid the same position of the dust removal bag body from contacting the keel for a long time. While ensuring the utilization rate of the dust removal bag body, it helps to extend the service life of the dust removal bag body and reduce the air filtration cost.

[0022] Furthermore, by setting up a driving mechanism, during the process of filtering the air in the wood board processing plant, when the driving mechanism stretches the keel, the diameter of the keel continuously decreases, and the pitch continuously increases, thereby being able to continuously change the contact position with the inner circumferential wall of the dust bag body; after the keel is stretched to a preset length, the driving mechanism stops working, and the keel automatically resets under the action of elasticity, the diameter continuously increases, and the pitch continuously decreases, thereby being able to slap the dust bag body to shake off impurities adsorbed on the outer wall of the dust bag body, thereby ensuring the filtering effect of the dust bag body.

[0023] Furthermore, by setting two keels and symmetrically arranging them about the axis center of the dust bag, on the one hand, the dust bag can be better supported, and on the other hand, two keels can reduce the beating gap on the dust bag than one keel, so that the dust bag can be beaten more evenly, and the two keels can maintain symmetrical beating at the same time, so that the dust bag can be unfolded more evenly while avoiding unidirectional pulling of the dust bag and causing damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of the three-dimensional structure of an air filtration system for a wood board processing plant provided in one embodiment of the present invention;

[0025] Figure 2 A schematic side view of the structure of an air filtration system for a wood board processing plant provided by an embodiment of the present invention;

[0026] Figure 3 for Figure 2 The AA section view of the air filtration system of the wood panel processing plant shown;

[0027] Figure 4 A schematic diagram of the three-dimensional structure of the filter module and the partition plate of the wood board processing plant air filtration system provided by one embodiment of the present invention when assembled;

[0028] Figure 5 A schematic diagram of the three-dimensional structure of a filter unit of an air filtration system for a wood-based panel processing plant provided in one embodiment of the present invention;

[0029] Figure 6 A schematic diagram of the top view of the filter unit of the air filtration system for a wood board processing plant provided in one embodiment of the present invention;

[0030] Figure 7 for Figure 6 The BB section view of the air filtration system of the wood panel processing plant shown;

[0031] Figure 8 A schematic diagram of the three-dimensional structure of a filter unit without a dust removal bag in an air filtration system for a wood-based panel processing plant provided by an embodiment of the present invention;

[0032] Fig. 9 A front view structural schematic diagram of a mounting base and a sleeve of an air filtration system for a wood board processing plant provided by an embodiment of the present invention during assembly;

[0033] Fig.10 for Fig. 9 The CC section view of the mounting base and sleeve of the air filtration system of the wood panel processing plant shown in FIG.

[0034] Fig.11 for Fig. 9 The DD section view of the mounting base and sleeve assembly of the air filtration system for a wood panel processing plant is shown.

[0035] in:

[0036] 1. Shell; 11. Air inlet; 12. Exhaust port; 13. Support legs; 14. Collection bucket; 15. Filter plate; 16. Scraper rod; 17. Partition plate;

[0037] 2. Filter module; 21. Filter unit; 211. Fan; 212. Mounting seat; 2121. First gear; 2122. Second gear; 213. Dust bag; 214. Sleeve; 2141. Sliding block; 2142. Fixed block; 2143. Gear shaft; 2144. Third gear; 2145. Ring gear; 2146. Electromagnet; 2147. Tension spring; 215. Sliding seat; 2151. Slot; 216. Support rod; 217. Keel. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0039] The serial numbers of the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. are based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0040] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0041] like Figures 1 to 11 As shown, an air filtration system for a wood board processing plant provided by an embodiment of the present invention is used to filter the air in a wood board processing plant; in this embodiment, the air filtration system for a wood board processing plant is configured to include a housing 1 and a filter module 2. Specifically, the housing 1 is configured to have a box structure; more specifically, in order to facilitate supporting the housing 1, a plurality of legs 13 are provided at the bottom of the housing 1; for example, Figure 1 As shown, the number of legs 13 can be four, and they are respectively arranged at the four corners of the bottom of the shell 1; the shell 1 is provided with an air intake chamber and an exhaust chamber isolated from each other, specifically, as Figure 3 As shown, a partition 17 is horizontally inserted inside the shell 1, and the partition 17 divides the shell 1 into an upper half and a lower half, wherein the upper half of the shell 1 is set as an exhaust chamber, and the lower half of the shell 1 is set as an intake chamber; more specifically, as shown Figure 3 As shown, an exhaust port 12 is provided on the left wall of the shell 1, located above the partition 17. The exhaust port 12 is connected to the exhaust chamber to discharge the air inside the exhaust chamber to the external environment. An air inlet 11 is provided on the right wall of the shell 1, located below the partition 17. The air inlet 11 is connected to the air inlet chamber and is used to receive air from the wood board processing plant.

[0042] The filter module 2 is configured to include at least one filter unit 21, and the filter unit 21 is configured to include a dust bag body 213 and a keel 217. The dust bag body 213 has a main body located in the air inlet chamber and an outlet portion located in the exhaust chamber. Specifically, Figure 3 and Figure 5 As shown, the dust bag body 213 is configured as a rotating body structure with a U-shaped vertical section, and when installed, the outlet portion of the dust bag body 213 is vertically arranged at the bottom of the partition 17, and the main body of the dust bag body 213 is suspended; more specifically, at least one through hole is opened on the plate surface of the partition 17, and the through hole is correspondingly arranged with the dust bag body 213 and is connected with the outlet portion of the dust bag body 213; the keel 217 is configured as an elastic spiral structure and is inserted into the dust bag body 213. Specifically, as shown in FIG. Figure 7 and Figure 8 As shown, the cross section of the keel 217 can be set to a circle; the first end of the keel 217 is fixedly set, and the second end of the keel 217 can slide back and forth along the axial direction of the dust bag body 213 to change the contact position between the keel 217 and the inner circumferential wall of the dust bag body 213 by changing its own diameter; specifically, as Figure 7 As shown, the lower end of the keel 217 is set as the first end, and the upper end of the keel 217 is set as the second end.

[0043] For example, Figure 4As shown, the filter module 2 can be configured to include 25 filter units 21 , with 5 filter units 21 forming a group, and five groups of filter units 21 being arranged side by side or in parallel on the partition 17 .

[0044] It is understandable that the cross-section of the keel 217 may also be set to other shapes such as a triangle, a rectangle, an ellipse, or a polygon with five or more sides.

[0045] In this embodiment, in order to facilitate the installation of the keel 217, the wood board processing plant air filtration system is configured to further include a mounting base 212 and a support rod 216. The mounting base 212 is fixedly arranged at the outlet portion. Specifically, Figure 3 , Figure 5 and Fig.10 As shown, the mounting seat 212 is configured as an annular structure, and is configured to be fixed and coaxially inserted into the through hole during installation; more specifically, in order to enable the outlet portion of the dust bag body 213 to be normally connected to the exhaust chamber, as shown in FIG. Fig.10 As shown, a plurality of vent holes are provided on the end surface of the mounting seat 212, one end of the vent hole is connected to the exhaust chamber, and the other end is connected to the through hole; more specifically, the plurality of vent holes can be arranged uniformly along the circumferential direction; more specifically, the shape of the vent hole can be set to be fan-shaped; the first end of the support rod 216 is fixedly set on the mounting seat 212, and the second end is suspended and inserted in the dust bag body 213, and the support rod 216 and the dust bag body 213 are coaxially arranged, specifically, as shown Figure 7 As shown, the support rod 216 is configured as a T-shaped rod structure, and has a vertical and fixedly connected round rod part and a base part, wherein the base part can be configured as an annular structure to facilitate supporting the dust bag body 213, and the top end of the round rod part is configured as the first end of the support rod 216, and the base part is configured as the second end of the support rod 216. When installed, it is configured to be coaxial with the top end of the round rod part and fixedly connected to the bottom of the mounting seat 212, and the base part is suspended and inserted inside the dust bag body 213, and is arranged close to the bottom of the dust bag body 213; the first end of the keel 217 is fixedly set at the second end of the support rod 216. Specifically, as shown in FIG. Figure 7 As shown, the bottom end of the keel 217 is fixedly connected to the top end surface of the base portion.

[0046] In this embodiment, in order to facilitate the provision of driving force for the second end of the keel 217 to slide back and forth along the axial direction of the dust bag body 213, the air filtration system of the wood board processing plant can be configured to include at least one first driving cylinder, and the first driving cylinder and the dust bag body 213 are correspondingly arranged, and are arranged on the partition 17 during installation, and are located directly above the through hole. The output shaft of the first driving cylinder is arranged downward along the axial direction of the dust bag body 213, and is fixedly connected to the second end of the keel 217 to synchronously drive the second end of the keel 217 to move.

[0047] It can be understood that the first driving cylinder can be configured as any one of a hydraulic cylinder, a pneumatic cylinder or an electric cylinder.

[0048] In the process of filtering the air in the wood board processing plant, the air first enters the air intake chamber from the plant through the air inlet 11. With the continuous entry of air, the pressure of the air intake chamber gradually increases. Since the exhaust chamber is always connected to the external environment through the exhaust port 12, the pressure of the exhaust chamber remains unchanged. Therefore, the pressure of the air intake chamber is greater than the pressure of the exhaust chamber. There is a pressure difference between the two. Under the action of the pressure difference, the air passes through the main part of the dust bag body 213 to filter out the impurity particles contained therein, and then passes through the through holes and the vent holes in sequence from the outlet part of the dust bag body 213 to enter the exhaust chamber, and then is discharged from the exhaust chamber to the external environment through the exhaust port 12. At the same time, the first drive cylinder is started, and the output shaft of the first drive cylinder drives the keel 2 The second end of the keel 217 synchronously slides back and forth along the axial direction of the dust bag body 213. During the upward movement of the second end of the keel 217 along the axial direction of the dust bag body 213, the diameter of the keel 217 continuously decreases, the pitch continuously increases, and the contact position with the inner circumferential wall of the dust bag body 213 continuously changes. During the downward movement of the second end of the keel 217 along the axial direction of the dust bag body 213, the diameter of the keel 217 continuously increases, the pitch continuously decreases, and the contact position with the inner circumferential wall of the dust bag body 213 continuously changes, thereby avoiding the same position of the dust bag body 213 from contacting the keel 217 for a long time. While ensuring the utilization rate of the dust bag body 213, it helps to extend the service life of the dust bag body 213 and reduce the air filtration cost.

[0049] In other embodiments, in addition to being configured to provide a driving force for the second end of the keel 217 to slide back and forth axially along the dust bag body 213 through the first driving cylinder, the filter unit 21 can also be configured to include a driving mechanism, which is configured to provide a driving force for extending the keel 217.

[0050] In this embodiment, the driving mechanism can be configured to include a fan 211, a sleeve 214, a transmission assembly and a trigger assembly. The fan 211 is disposed on a mounting seat 212 and can rotate around its own axis. Specifically, Figure 5 As shown, the fan 211 is coaxially arranged on the mounting seat 212; the sleeve 214 is inserted into the dust bag body 213, and can rotate synchronously with the fan 211 under the action of the transmission assembly. Specifically, as Fig.11 As shown, the sleeve 214 is coaxially and rotatably connected to the bottom of the mounting seat 212; the second end of the keel 217 is provided with a sliding seat 215, which is sleeved on the outside of the sleeve 214 and can rotate synchronously with the sleeve 214 under the action of the trigger assembly to lengthen the keel 217. Specifically, Figure 8As shown, the sliding seat 215 can be set as an annular structure to support the dust bag body 213.

[0051] In this embodiment, the transmission assembly is configured to include a first gear 2121, a second gear 2122, a third gear 2144 and a ring gear 2145. The first gear 2121 is fixedly sleeved on the transmission shaft of the fan 211. Specifically, as shown in FIG. Figure 7 As shown, the first gear 2121 is coaxially sleeved on the transmission shaft of the fan 211 and can be inserted into the mounting seat 212 so as to rotate around its own axis; the second gear 2122 and the third gear 2144 are coaxially arranged and are both arranged on the mounting seat 212 and can rotate synchronously. Specifically, as shown in FIG. Fig.10 and Fig.11 As shown, in order to facilitate the installation of the second gear 2122 and the third gear 2144, the transmission assembly is configured to also include a gear shaft 2143. The gear shaft 2143 is configured to be parallel to the axial direction of the dust bag body 213 during installation, and the top end is inserted into the mounting seat 212, and the bottom end is suspended below the mounting seat 212. The second gear 2122 is configured to be fixedly sleeved on the top end of the gear shaft 2143 during installation, and the third gear 2144 is configured to be fixedly sleeved on the bottom end of the gear shaft 2143 during installation; as shown in FIG. Fig.11 As shown, the ring gear 2145 is coaxially arranged inside the sleeve 214 ; the first gear 2121 and the second gear 2122 are meshed and connected, and the third gear 2144 and the ring gear 2145 are meshed and connected to transmit the rotation of the fan 211 to the sleeve 214 .

[0052] In this embodiment, the trigger assembly is configured to include an electromagnet 2146 and a magnetic sliding block 2141, such as Fig.11 As shown, the electromagnet 2146 is disposed inside the sleeve 214; the sliding block 2141 is inserted into the sleeve 214 and can slide elastically along the radial direction of the sleeve 214, so that when the electromagnet 2146 is energized, it is clamped on the sliding seat 215 under the action of repulsive force; specifically, as Figure 8As shown, a card slot 2151 is provided on the inner peripheral wall of the sliding seat 215, and the card slot 2151 can be engaged with the sliding card block 2141, so that the rotation of the sleeve 214 can be transmitted to the sliding seat 215, and the keel 217 can be driven to rotate synchronously through the sliding seat 215, so that the keel 217 becomes slender under the elastic action of itself; more specifically, in order to facilitate the driving force for the sliding card block 2141 to slide elastically along the radial direction of the sleeve 214, the sleeve 214 and the sliding card block 2141 are connected. A tension spring 2147 or an elastic rope is arranged between them, and the tension spring 2147 or the elastic rope is used to drive the sliding block 2141 to reset when the electromagnet 2146 is powered off; more specifically, in order to prevent the sliding seat 215 from being disengaged from the engagement with the sliding block 2141 when resetting, a fixed block 2142 is arranged on the outer peripheral wall of the sleeve 214 near the bottom, and the fixed block 2142 and the sliding block 2141 are located in the same axial direction, and can be engaged with the slot 2151 to limit the sliding seat 215.

[0053] It is understandable that the connection stability between the sleeve 214 and the sliding seat 215 can be improved by setting a plurality of sliding blocks 2141, tension springs 2147 or elastic ropes and electromagnets 2146, which are uniformly arranged along the circumference; accordingly, a plurality of slots 2151 are also provided, which are uniformly arranged along the circumference; accordingly, a plurality of fixed blocks 2142 are also provided, which are uniformly arranged along the circumference; for example, Fig. 9 and Fig.11 As shown, there are two sliding blocks 2141, two fixed blocks 2142, two tension springs 2147 or elastic ropes and two electromagnets 2146, which are symmetrically arranged about the axis of the sleeve 214. There are also two slots 2151, which are symmetrically arranged about their own axes. When in use, the two sliding blocks 2141 can be respectively engaged with the corresponding slots 2151.

[0054] In the process of filtering the air in the wood board processing plant, the fan 211 rotates under the blowing of the air, the fan 211 drives the second gear 2122 to rotate through the first gear 2121, the second gear 2122 drives the third gear 2144 to rotate through the gear shaft 2143, and the third gear 2144 drives the sleeve 214 to rotate through the ring gear 2145. At the same time, the electromagnet 2146 is energized, and the sliding block 2141 moves outward along the radial direction of the sleeve 214 to pass through the card slot 2146 under the action of the repulsive force. 51 is connected to the sliding seat 215. During the movement of the sliding block 2141, the sliding block 2141 synchronously drives the tension spring 2147 or the elastic rope to be synchronously stretched to store force. When the sliding block 2141 stops moving, the sleeve 214 drives the keel 217 to rotate synchronously through the sliding seat 215. During the rotation of the keel 217, the diameter of the keel 217 continuously decreases and the pitch continuously increases under the action of its own elasticity, and synchronously drives the sliding seat 215 to move upward, thereby continuously changing the inner peripheral wall of the dust bag body 213. When the sliding seat 215 moves to the top of the sliding block 2141, the electromagnet 2146 is stopped from being energized, and the sliding block 2141 moves inwardly along the radial direction of the sleeve 214 under the pull of the tension spring 2147 or the elastic rope until it is retracted into the sleeve 214. At this time, the sliding block 2141 loses its limiting effect on the keel 217, and the keel 217 moves downward under the action of its own elasticity, with the diameter continuously increasing and the pitch continuously decreasing, so that the dust bag body 213 can be slapped to shake off the dust bag. The impurities adsorbed on the outer wall of the dust bag body 213 ensure the filtering effect of the dust bag body 213; and because the diameter of the keel 217 gradually recovers from top to bottom, the diameter of the upper keel 217 gradually increases, which has the effect of delayed striking to ensure that the impurities shaken off will not adhere to the dust bag body 213 for a second time, and the lower keel 217 will open the dust bag body 213, while reducing the tendency of the dust bag body 213 to rotate along with the keel 217, reducing the influence of wind on the dust bag body 213, thereby ensuring the striking effect.

[0055] In other embodiments, the driving mechanism may also be configured to include a second driving cylinder to provide a driving force for lengthening the keel 217; specifically, the number of the second driving cylinders is set to be equal to the number of the dust bag body 213, and is arranged corresponding to the dust bag body 213, and is arranged on the partition 17 during installation, and is located directly above the through hole, and the output shaft of the second driving cylinder is arranged downward along the axial direction of the dust bag body 213, and is fixedly connected to the second end of the keel 217 to synchronously drive the second end of the keel 217 to move; during use, when the keel 217 needs to be lengthened, the second driving cylinder is started, and the output shaft of the second driving cylinder drives the second end of the keel 217 to synchronously move upward along the axial direction of the dust bag body 213, so that the diameter of the keel 217 continuously decreases, and the pitch continuously increases, so as to continuously change the contact position between the keel 217 and the inner circumferential wall of the dust bag body 213; when the keel 217 is reset, the second driving cylinder is closed, and the keel 217 can be automatically reset under the action of its own elasticity.

[0056] It can be understood that the second driving cylinder can be configured as any one of a hydraulic cylinder, a pneumatic cylinder or an electric cylinder.

[0057] In other embodiments, the number of keels 217 is two, and they are symmetrically arranged about the axis of the dust bag body 213. Specifically, Figure 8 As shown, the bottom ends of the two keels 217 are fixedly connected to the top surface of the base, and the bottom ends of the two keels 217 are fixedly connected to the bottom surface of the sliding seat 215, and viewed from the axial direction of the dust bag body 213, the two keels 217 are staggered, so that in the process of filtering the air in the wood board processing plant, the two keels 217 can better support the dust bag body 213 on the one hand, and on the other hand, the two keels 217 can reduce the beating gap of the dust bag body 213 compared with one keel 217, so that the dust bag body 213 can be beat more evenly, and the two keels 217 can maintain symmetrical beating at the same time, so that the dust bag body 213 can be more evenly unfolded while avoiding unidirectional pulling of the dust bag body 213 to cause damage.

[0058] In other embodiments, a filter unit is further provided inside the air intake chamber, and the filter unit is configured to filter the air before the filter module 2 filters the air, so as to remove larger particulate impurities contained in the air, so as to prevent the particulate impurities from clogging the dust bag 213 and affecting the filtering effect of the dust bag 213.

[0059] In this embodiment, the filter unit can be configured to include a filter plate 15, such as Figure 3 As shown, the filter plate 15 is arranged parallel to the right wall of the housing 1 during installation and is located between the filter module 2 and the air inlet 11. Filter holes are opened on the filter plate 15, and the filter holes are used to filter some particulate impurities contained in the air.

[0060] In a further embodiment, the air filtration system of the wood board processing plant is configured to also include a cleaning section, and the cleaning section is configured to be able to clean the filter section to ensure the filtering effect of the filter section.

[0061] In this embodiment, the cleaning portion can be configured to include a scraper rod 16, such as Figure 3 As shown, the scraper rod 16 is partially inserted into the air inlet chamber and fits against the right side surface of the filter plate 15 , and can slide up and down in the vertical direction to clean the right side surface of the filter plate 15 .

[0062] It is understandable that the scraper rod 16 can be driven to move manually.

[0063] It is understandable that the scraper rod 16 can also be driven to move by setting a third drive cylinder; specifically, the third drive cylinder can be set at the top of the shell 1, and its output shaft is set downward in the vertical direction and fixedly connected to the top of the scraper rod 16 to synchronously drive the scraper rod 16 to move.

[0064] It can be understood that the third driving cylinder can be configured as any one of a hydraulic cylinder, a pneumatic cylinder or an electric cylinder.

[0065] In a further embodiment, a collecting hopper 14 is provided at the bottom of the housing 1, and the collecting hopper 14 is configured to collect impurities cleaned by the cleaning part for unified cleaning; specifically, Figure 1 and Figure 3 As shown, the collecting bucket 14 is configured as a shell 1 structure in the shape of a quadrangular pyramid, with the large end facing upward and connected to the air intake chamber.

[0066] It is understandable that the collecting bucket 14 can also collect impurities adhered to the dust bag body 213 beaten by the keel 217.

[0067] In other embodiments, the filter portion may also be configured to include a filter screen.

[0068] In other embodiments, the cleaning portion may also be configured to include a nozzle, which can spray water or air to clean the surface of the filter plate 15 or the filter screen.

[0069] The technical features of the above embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0070] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. An air filtration system for a wood board processing plant, characterized in that: The wood panel processing plant air filtration system comprises: A housing, wherein an air intake chamber and an exhaust chamber isolated from each other are arranged inside the housing; A filter module, wherein the filter module comprises at least one filter unit, wherein the filter unit comprises a dust bag body and a keel, wherein the dust bag body has a main portion located in the air inlet chamber and an outlet portion located in the exhaust chamber; the keel is configured to have an elastic spiral structure and is inserted into the dust bag body, wherein the first end of the keel is fixedly disposed, and the second end of the keel can slide back and forth along the axial direction of the dust bag body so as to change the contact position between the keel and the inner circumferential wall of the dust bag body by changing its own diameter.

2. The air filtration system for wood board processing plant according to claim 1 is characterized in that: The wood board processing plant air filtration system also includes a mounting seat and a support rod, wherein the mounting seat is fixedly arranged at the outlet part; the first end of the support rod is fixedly arranged on the mounting seat, and the second end is suspended and inserted inside the dust removal bag body, and the support rod and the dust removal bag body are coaxially arranged; the first end of the keel is fixedly arranged on the second end of the support rod.

3. The air filtration system for wood board processing plant according to claim 2 is characterized in that: The filter unit further includes a driving mechanism configured to provide a driving force for extending the keel.

4. The air filtration system for wood board processing plant according to claim 3 is characterized in that: The driving mechanism includes a fan, a sleeve, a transmission assembly and a trigger assembly. The fan is arranged on the mounting seat and can rotate around its own axis. The sleeve is inserted into the dust bag body and can rotate synchronously with the fan under the action of the transmission assembly. A sliding seat is provided at the second end of the keel. The sliding seat is sleeved on the outside of the sleeve and can rotate synchronously with the sleeve under the action of the trigger assembly to lengthen the keel.

5. The air filtration system for wood board processing plant according to claim 4 is characterized in that: The transmission assembly includes a first gear, a second gear, a third gear and a ring gear. The first gear is fixedly sleeved on the transmission shaft of the fan; the second gear and the third gear are coaxially arranged, and are both arranged on the mounting seat and can rotate synchronously; the ring gear is coaxially arranged inside the sleeve; the first gear and the second gear are meshingly connected, and the third gear and the ring gear are meshingly connected to transmit the rotation of the fan to the sleeve.

6. The air filtration system for wood board processing plant according to claim 4 is characterized in that: The trigger assembly includes an electromagnet and a magnetic sliding block, wherein the electromagnet is arranged inside the sleeve; the sliding block is inserted into the sleeve and can slide elastically along the radial direction of the sleeve so that when the electromagnet is energized, it is clamped on the sliding seat under the action of repulsive force.

7. The air filtration system for wood board processing plant according to claim 1 is characterized in that: There are two keels, which are symmetrically arranged about the axis of the dust removal bag body.

8. The air filtration system for wood board processing plant according to claim 1 is characterized in that: A filter unit is also disposed inside the air inlet chamber, and the filter unit is configured to filter the air before the filter module filters the air.

9. The air filtration system for wood board processing plant according to claim 8, characterized in that: The wood board processing plant air filtration system also includes a cleaning unit, which is configured to clean the filter unit.

10. The air filtration system for wood board processing plant according to claim 9, characterized in that: A collecting hopper is disposed at the bottom of the shell, and the collecting hopper is configured to collect impurities cleaned by the cleaning part.

Images