A centralized bag filter dust removal device for wood product processing

Abstract

This invention relates to the field of wood product processing technology, and provides a centralized bag filter dust collection device for wood product processing, including a filter dust collector and an installation box; the installation box is installed at the top of the filter dust collector, and the filter box is installed at the bottom of the filter dust collector. This invention, through the setting of a cleaning structure, utilizes the expansion and contraction deformation of the dust collector bag itself as power to drive the first brush during dust removal, eliminating the need for an additional radial drive mechanism, resulting in a simple structure. The first brush achieves adaptive elastic compression under the action of a first spring, ensuring that the brush bristles remain in close contact with the outer wall of the bag regardless of whether the dust collector bag expands or contracts, with no cleaning gaps or blind spots. It can reliably clean areas prone to dust accumulation, such as bag folds and bag openings, resulting in more thorough dust removal. The first spring buffer avoids rigid friction between the first brush and the bag, reducing filter material wear and significantly extending the service life of the dust collector bag.

Description

Technical Field

[0001] This invention relates to the field of wood product processing technology, and in particular to a centralized bag filter dust removal device for wood product processing. Background Technology

[0002] In the current rapid development of the wood products processing industry, a large amount of wood dust is generated in core processing steps such as cutting, planing, sanding, and polishing. As a typical solid waste, this type of dust has become one of the major environmental pollution problems faced by the industry. It also poses multiple threats to the ecological environment, human health, and enterprise production safety. In order to reduce the pollution of wood dust solid waste to the surrounding environment, centralized bag filter dust removal devices are used to centrally filter and remove the collected wood dust. To address this, patent CN223930933U discloses a reverse-flushing baghouse multi-stage dust collector, relating to the field of dust collection equipment technology. The device includes a dust collector box with an exhaust fan running through one side of its top. Inside the dust collector box is a bag frame with several bags running through its top. Each bag has a fixing plate fitted around its top, and the bottom ends of the fixing plates are connected to the top of the bag frame via connecting components. The top of the bag frame has several fixing grooves that mate with the connecting components. A support plate is provided on one side wall of the dust collector box. This invention features a reasonable and reliable structure and simple operation. Through the coordinated arrangement of the exhaust fan, bags, connecting pipes, dust collector air manifold, electromagnetic pulse valve, blowpipe, outlet pipe, venturi tube, and inlet, it can achieve efficient filtration of dust-laden gas, reverse-flushing cleaning, and purified gas emission, thereby improving the dust collection efficiency of this reverse-flushing baghouse multi-stage dust collector. The existing technical solutions described above have the following drawbacks: Although the above technology uses electromagnetic pulse valves to achieve high-pressure gas backflushing for dust removal during use, and injects compressed air into the filter bag through the instantaneous opening and closing of the pulse valves, causing the filter bag to vibrate periodically to peel off the attached dust, the wood chips are relatively light and fibrous, and are very easy to wrap around and hook onto the surface of the filter bag fibers to form a dense accumulation layer. Simply relying on airflow impact can only remove the loose dust on the surface, and the effect on peeling off the already adhered and entangled wood chip fibers is extremely poor. After multiple pulse backflushing, a large amount of residue is still attached to the surface of the filter bag. Therefore, a centralized bag filter dust removal device for wood product processing is needed to solve the above problems. Summary of the Invention

[0003] The purpose of this invention is to provide a centralized bag filter dust removal device for wood product processing, which solves the problem that existing bag filter dust removal devices are prone to incomplete cleaning of wood chips and dust on the surface of the bags.

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a centralized bag filter dust removal device for wood product processing, comprising a filter dust collector and an installation box; the installation box is installed at the top of the filter dust collector, a filter box is installed at the bottom of the filter dust collector, an exhaust fan is installed on one side of the filter box, an air inlet is installed on one side of the bottom of the filter dust collector, a dust collector bag is installed inside the filter dust collector, a cleaning structure is provided on the outside of the dust collector bag, and a discharge pipe is installed on one side of the installation box; The cleaning structure includes a fixing frame installed on the outside of the dust collector bag. A cleaning sleeve is installed inside the fixing frame and fitted onto the outside of the dust collector bag. A first brush is installed inside the cleaning sleeve. A first spring is installed on one side of the first brush. A pressing block is installed at the bottom end of one side of the first brush. An annular sleeve is installed on the inside of the cleaning sleeve. Pressing teeth are installed inside the annular sleeve. An annular groove is formed inside the bottom end of the cleaning sleeve. A fixing plate is installed at the bottom end of the annular groove. A second brush is provided on one side of the fixing plate.

[0005] Preferably, a check block is installed on the outer side of the annular sleeve, a fixing shaft is installed inside the fixing groove on one side of the cleaning sleeve, a pawl is installed on the outer side of the fixing shaft, a second spring is installed on one side of the pawl, and one side of the second spring is fixed to the fixing groove on one side of the cleaning sleeve.

[0006] Preferably, the two ends of the first spring are fixed to one side of the first brush and one side of the inside of the cleaning sleeve, respectively, and the first spring and the first brush form a telescopic structure. A connecting frame is installed inside the cleaning sleeve.

[0007] Preferably, the fixed plate has a guide hole inside, a moving rod is inserted into the guide hole, a second brush is fixed to one side of the moving rod, a third spring is sleeved on the outside of the moving rod, and the two ends of the third spring are respectively fixed to one side of the fixed plate and the second brush.

[0008] Preferably, a plurality of check blocks and compression teeth are provided, and the plurality of check blocks and compression teeth are arranged in a ring on the outer and inner sides of the annular sleeve.

[0009] Preferably, the first brush is provided in multiple sets, and the multiple sets of the first brush are arranged in a ring inside the cleaning sleeve.

[0010] Preferably, multiple sets of the movable rods are provided, and the multiple sets of movable rods form a guiding connection with the guide hole.

[0011] Preferably, a mounting bracket is installed on one side of the interior of the filter dust collector, a reciprocating lead screw is installed inside the mounting bracket, a threaded sleeve is installed on the outside of the reciprocating lead screw, a connecting plate is installed on one side of the threaded sleeve, a guide groove is opened on one side of the mounting bracket, one side of the connecting plate is fixed to one side of the fixing bracket, a backflushing pipe is installed inside the mounting box, a backflushing head is installed at the bottom end of the backflushing pipe, and a connecting pipe is installed on one side of the backflushing pipe.

[0012] Preferably, the threaded sleeve is fitted onto the outside of the reciprocating lead screw, and the threaded sleeve and the reciprocating lead screw form a threaded connection.

[0013] Preferably, sealing strips are installed on both sides inside the guide groove, and the sealing strips are symmetrically distributed inside the guide groove.

[0014] The present invention provides a centralized bag filter dust removal device for wood product processing, which has the following advantages: By incorporating a cleaning structure, the dust collector bag itself expands and contracts during dust removal, driving the first brush action without requiring an additional radial drive mechanism, resulting in a simple structure. Furthermore, the first brush achieves adaptive elastic compression under the action of the first spring. Regardless of whether the dust collector bag expands or contracts, the brush bristles always adhere tightly to the outer wall of the bag, with no cleaning gaps or blind spots. It can reliably clean the bag folds, bag mouth and other areas that are prone to dust accumulation, making the dust removal more thorough. The first spring buffer avoids rigid friction between the first brush and the bag, reduces filter material wear, and significantly extends the service life of the dust collector bag. Furthermore, the expansion and contraction of the dust collector bag drives the first brush to move radially, while the squeezing block and squeezing teeth drive the annular sleeve to rotate, causing the second brush to form a circumferential rotation cleaning. Combined with the axial up and down movement driven by the reciprocating screw, a composite cleaning trajectory of "axial movement + circumferential rotation" is finally formed, ensuring thorough cleaning without dead angles. The pulse backflushing loosens the dust, and the brush physically scrapes away the dust, forming a dual dust removal of air jet and mechanical cleaning. This significantly improves the cleaning effect on sticky and hardened dust from wood. The first brush performs secondary cleaning during its downward movement. With multiple cleaning layers, the surface of the bag is cleaner, the filtration resistance is stable over a long period, and the dust removal efficiency is higher. Attached Figure Description

[0015] Figure 1 This is a frontal three-dimensional structural schematic diagram of the present invention; Figure 2 This is a top-view partial cross-sectional three-dimensional structural schematic diagram of the present invention; Figure 3 This is a three-dimensional structural diagram of the present invention viewed from below; Figure 4 This is a frontal cross-sectional three-dimensional structural schematic diagram of the present invention; Figure 5 This is a top-view three-dimensional structural diagram of the cleaning structure of the present invention; Figure 6 This is a three-dimensional structural diagram of the cleaning structure of the present invention, viewed from below. Figure 7 This is a top-view partial cross-sectional three-dimensional structural schematic diagram of the cleaning sleeve of the present invention; Figure 8 This is a three-dimensional structural diagram of the cleaning sleeve of the present invention, viewed from below. Figure 9 This is a top-view partial cross-sectional three-dimensional structural schematic diagram of the cleaning structure of the present invention; Figure 10 This is a top view schematic diagram of the cleaning structure of the present invention; Figure 11 for Figure 10 A magnified view of the structure at point A in the middle; Figure 12 This is a three-dimensional structural diagram of the cleaning structure of the present invention, viewed from below. Figure 13 This is a top-view three-dimensional structural diagram of the connecting frame of the present invention. Figure 14 This is a frontal three-dimensional structural schematic diagram of the mounting bracket of the present invention; Figure 15 This is a three-dimensional structural schematic diagram of the mounting bracket of the present invention, viewed from the front.

[0016] The following are the annotations in the diagram: 1. Filter dust collector; 2. Mounting box; 3. Air inlet; 4. Filter box; 5. Exhaust fan; 6. Cleaning structure; 601. Backflush pipe; 602. Connecting pipe; 603. Backflush head; 604. Fixing frame; 605. Mounting frame; 606. Cleaning sleeve; 607. First spring; 608. Connecting frame; 609. First brush; 6010. Extrusion teeth; 6011. Extrusion block; 6012. Annular sleeve; 6013, Check block; 6014, Second spring; 6015, Fixed shaft; 6016, Pawl; 6017, Annular groove; 6018, Second brush; 6019, Moving rod; 6020, Third spring; 6021, Fixed plate; 6022, Guide hole; 6023, Connecting plate; 6024, Sealing strip; 6025, Guide groove; 6026, Reciprocating screw; 6027, Sleeve; 7, Discharge pipe; 8, Dust collector bag. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Please see Figures 1-15The present invention provides a centralized bag filter dust removal device for wood product processing, comprising a filter dust collector 1 and an installation box 2; the installation box 2 is installed at the top of the filter dust collector 1, the filter box 4 is installed at the bottom of the filter dust collector 1, the exhaust fan 5 is installed on one side of the filter box 4, the air inlet 3 is installed on one side of the bottom of the filter dust collector 1, the filter dust collector 1 is equipped with a dust collection bag 8, the dust collection bag 8 is provided with a cleaning structure 6 on the outside, and the discharge pipe 7 is installed on one side of the installation box 2.

[0019] Reference Figures 1-15 As shown, the cleaning structure 6 includes a fixing frame 604, which is installed on the outside of the dust collector bag 8. A cleaning sleeve 606 is installed inside the fixing frame 604 and is fitted onto the outside of the dust collector bag 8. A first brush 609 is installed inside the cleaning sleeve 606. A first spring 607 is installed on one side of the first brush 609. A pressing block 6011 is installed at the bottom end of one side of the first brush 609. An annular sleeve 6012 is installed on the inside of the cleaning sleeve 606. A pressing tooth 6010 is installed inside the annular sleeve 6012. An annular groove 6017 is opened inside the bottom end of the cleaning sleeve 606. A fixing plate 6021 is installed at the bottom end of the annular groove 6017. A second brush 6018 is provided on one side of the fixing plate 6021. A check block 6013 is installed on the outer side of the annular sleeve 6012. A fixing shaft 6015 is installed inside the fixing groove on one side of the cleaning sleeve 606. A pawl 6016 is installed on the outer side of the fixing shaft 6015. A second spring 6014 is installed on one side of the pawl 6016. One side of the second spring 6014 is fixed to the fixing groove on one side of the cleaning sleeve 606. The two ends of the first spring 607 are fixed to one side of the first brush 609 and one side inside the cleaning sleeve 606, respectively. The first spring 607 and the first brush 609 form a telescopic structure. A connecting bracket 608 is installed inside the cleaning sleeve 606. The fixed plate 6021 has a guide hole 6022 inside, and a moving rod 6019 is inserted into the guide hole 6022. A second brush 6018 is fixed to one side of the moving rod 6019, and a third spring 6020 is sleeved on the outside of the moving rod 6019. The two ends of the third spring 6020 are respectively fixed to one side of the fixed plate 6021 and the second brush 6018. A plurality of check blocks 6013 and pressing teeth 6010 are provided, and the plurality of check blocks 6013 and pressing teeth 6010 are distributed in a ring on the outer and inner sides of the annular sleeve 6012. Multiple sets of first brushes 609 are provided, and the multiple sets of first brushes 609 are arranged in a ring inside the cleaning sleeve 606. Multiple sets of movable rods 6019 are provided, and multiple sets of movable rods 6019 form a guide connection with guide holes 6022; A mounting bracket 605 is installed on one side inside the filter dust collector 1. A reciprocating screw 6026 is installed inside the mounting bracket 605. A threaded sleeve 6027 is installed on the outside of the reciprocating screw 6026. A connecting plate 6023 is installed on one side of the threaded sleeve 6027. A guide groove 6025 is opened on one side of the mounting bracket 605. One side of the connecting plate 6023 is fixed to one side of the fixing bracket 604. A backflush pipe 601 is installed inside the mounting box 2. A backflush head 603 is installed at the bottom end of the backflush pipe 601. A connecting pipe 602 is installed on one side of the backflush pipe 601. The threaded sleeve 6027 is sleeved on the outside of the reciprocating lead screw 6026, and the threaded sleeve 6027 and the reciprocating lead screw 6026 form a threaded connection; Sealing strips 6024 are installed on both sides inside the guide groove 6025, and the sealing strips 6024 are symmetrically distributed inside the guide groove 6025.

[0020] During wood processing, the air inlet 3 is connected to a centralized conveying device. After connection, the generated wood chips are conveyed to the interior of the air inlet 3 through the centralized conveying device, and then conveyed to the interior of the machine body through the air inlet 3. When the wood chips and dust generated during wood processing are concentratedly conveyed to the interior of the filter dust collector 1, the discharge pipe 7 is connected to a suction fan to generate suction and draw in the air inside the filter dust collector 1. When the air inside the filter dust collector 1 is drawn in, the wood chips and dust discharged into the filter dust collector 1 will enter the interior of the dust collector bag 8 through the outside of the dust collector bag 8, and then be conveyed away by the discharge pipe 7 through the interior of the mounting box 2. At this time, the use of the dust collector bag 8 can perform centralized filtration of the wood chips and dust in the air, so that the wood chips and dust residues are removed. The dust remains on the surface of the filter bag 8, thus completing the filtration of wood chips and dust. When a differential pressure sensor installed inside the discharge pipe 7 detects that the dust accumulation in the filter bag 8 causes the resistance to reach a threshold, the electromagnetic pulse valve is triggered to open instantaneously, releasing the compressed air in the air tank and forming a high-speed pulse airflow. Since one end of the connecting pipe 602 is connected to the air tank, when starting, the gas inside the air tank will be discharged into the backflushing pipe 601 through the connecting pipe 602, and then vertically injected into the interior of the filter bag 8 through the backflushing head 603. The high-speed pulse airflow vertically injected into the interior of the filter bag 8 will instantly force the filter bag to expand and bulge radially from the bag opening to the bottom, and then quickly contract. Through this instantaneous vibration of expansion and contraction, the wood dust attached to the surface is peeled off. When the dust collector bag 8 expands and contracts, the starting motor drives the reciprocating screw 6026 to rotate. When the reciprocating screw 6026 rotates, it will move the sleeve 6027 up and down on the outside of the reciprocating screw 6026 through the cooperation of the sleeve 6027. When the sleeve 6027 moves, it will drive the fixed frame 604 to move through the connecting plate 6023. Since one side of the connecting plate 6023 is connected to the sleeve 6027 and the connecting plate 6023 passes through the inside of the guide groove 6025, the guide groove 6025 will guide the connecting plate 6023 and indirectly guide the sleeve 6027. When the sleeve 6027 moves on the outside of the reciprocating screw 6026, the sealing strips 6024 are provided on both sides of the guide groove 6025, so that the connection between the guide groove 6025 and the connecting plate 6023 can be sealed to prevent dust from entering the interior of the mounting frame 605. When the connecting plate 6023 moves, it causes the fixing frame 604 to move downward. As the fixing frame 604 moves downward, it causes the multiple sets of cleaning sleeves 606 inside to move downward on the outside of the dust collector bag 8. As the dust collector bag 8 continuously expands and contracts, the expansion of the dust collector bag 8 compresses the first brush 609 inside the cleaning sleeve 606, causing it to expand outward. Because the initial state of the first brush 609 causes one end of the bristles to adhere to the outside of the dust collector bag 8, as the dust collector bag 8 expands, the bristles push the first brush 609 outward during the expansion. When the first brush 609 expands outward, it compresses the first spring 607 to contract. The first spring 607, based on its elasticity, adaptively adjusts the position of the first brush 609, ensuring that the bristles on one side of the dust collector bag 8 remain close to the outside of the bag, regardless of expansion or contraction. As the first brush 609 expands outward, the guide block at its bottom moves within the guide rail at the bottom of the cleaning sleeve 606, guiding the first brush 609 and ensuring its proper movement. The movement is more stable. When the first brush 609 moves to one side, it drives the squeezing block 6011 to move to one side. When the squeezing block 6011 moves to one side, it squeezes one side of the squeezing tooth 6010. When the squeezing tooth 6010 is squeezed, it drives the annular sleeve 6012 to rotate to one side a certain distance. When the annular sleeve 6012 rotates, the check block 6013 also rotates. At this time, the use of the ratchet 6016 can limit the check block 6013 to prevent the annular sleeve 6012 from reversing after rotation. When the annular sleeve 6012 rotates, it drives the bottom end... The fixed plate 6021 rotates, which drives the second brush 6018 to rotate, allowing the second brush 6018 to perform a circular movement to clean the dust on the outside of the dust collector bag 8. As the fixed frame 604 moves, the first brush 609 also moves downward, at which point the first brush 609 will perform a second cleaning on the outside of the dust collector bag 8. Through these two cleanings, combined with the air backflushing to clean the dust collector bag 8, multiple cleaning operations are achieved on the outside of the dust collector bag 8, making it more effective at cleaning sawdust and dust on the outside of the dust collector bag 8. The movement of the first brush 609 is entirely driven by the expansion and contraction deformation of the dust collector bag 8 itself. When the electromagnetic pulse airflow enters the dust collector bag 8, the dust collector bag 8 will expand radially instantaneously, squeezing the first brush 609 outward during the expansion process. When the pulse airflow ends, the dust collector bag 8 quickly contracts and returns to its original position under the elasticity of the first spring 607 and the action of the airflow, driving the first brush 609 to return to its original position synchronously. This achieves self-adaptation of the first brush 609. The adaptive design ensures that the bristles of the first brush 609 can always maintain close contact with the surface of the bag, regardless of whether the dust collector bag 8 is in an expanded or contracted state. There will be no cleaning gaps or blind spots due to the deformation of the dust collector bag 8, ensuring effective cleaning of dust in all areas of the dust collector bag 8 surface, especially in areas where dust easily accumulates, such as the folds and bag openings. At the same time, the buffering effect of the first spring 607 can also prevent rigidity between the brush and the dust collector bag 8. The friction reduces wear on the filter material on the surface of the dust collector bag 8, extending its service life. Simultaneously, as the dust collector bag 8 expands and contracts, driving the first brush 609 to move radially, the displacement of the first brush 609 causes the pressing block 6011 to press the pressing teeth 6010, which in turn drives the annular sleeve 6012 to rotate. The annular sleeve 6012 then drives the second brush 6018 at the bottom to rotate circumferentially. At the same time, in conjunction with the reciprocating screw 6026 driving the fixed frame 604 to move up and down, the first brush 609 also moves up and down along the axial direction of the dust collector bag 8. Thus, driven by the expansion and contraction of the dust collector bag 8, the cleaning structure 6 forms a composite cleaning trajectory of "axial up and down movement + circumferential rotation." This composite trajectory can clean the dust on the surface of the dust collector bag 8 from different angles and directions. Especially for wood dust that is highly adhesive and easily clumps on the bag surface during wood processing, it can achieve more thorough peeling and cleaning, resulting in better dust removal performance. When the dust collector bag 8 is being cleaned, the exhaust fan 5 is activated to draw air from inside the filter dust collector 1, thereby sucking the dust cleaned from the dust collector bag 8 into the filter box 4. A filter screen is installed on one side of the filter box 4 to filter the wood chips and dust in the air, leaving the filtered wood chips and dust inside the filter box 4. This completes the collection of wood chips and dust from the surface of the dust collector bag 8, and ultimately completes the centralized dust removal of wood chips and dust generated from wood product processing, preventing pollution caused by solid waste such as wood chips and dust, and achieving environmental protection.

[0021] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A centralized bag filter dust removal device for wood product processing, comprising a filter dust collector (1) and a mounting box (2); Its features are: The top of the filter dust collector (1) is equipped with an installation box (2), the bottom of the filter dust collector (1) is equipped with a filter box (4), a blower (5) is installed on one side of the filter box (4), an air inlet (3) is installed on one side of the bottom of the filter dust collector (1), a dust collector bag (8) is installed inside the filter dust collector (1), a cleaning structure (6) is provided on the outside of the dust collector bag (8), and a discharge pipe (7) is installed on one side of the installation box (2). The cleaning structure (6) includes a fixing frame (604), which is installed on the outside of the dust collector bag (8). A cleaning sleeve (606) is installed inside the fixing frame (604). The cleaning sleeve (606) is fitted onto the outside of the dust collector bag (8). A first brush (609) is installed inside the cleaning sleeve (606). A first spring (607) is installed on one side of the first brush (609). A pressing block (6011) is installed at the bottom end of one side of the first brush (609). An annular sleeve (6012) is installed on the inside of the cleaning sleeve (606). A pressing tooth (6010) is installed inside the annular sleeve (6012). An annular groove (6017) is opened inside the bottom end of the cleaning sleeve (606). A fixing plate (6021) is installed at the bottom end of the annular groove (6017). A second brush (6018) is provided on one side of the fixing plate (6021).

2. The centralized bag filter dust removal device for wood product processing according to claim 1, characterized in that: A check block (6013) is installed on the outer side of the annular sleeve (6012). A fixing shaft (6015) is installed inside the fixing groove on one side of the cleaning sleeve (606). A pawl (6016) is installed on the outer side of the fixing shaft (6015). A second spring (6014) is installed on one side of the pawl (6016). One side of the second spring (6014) is fixed to the fixing groove on one side of the cleaning sleeve (606).

3. The centralized bag filter dust removal device for wood product processing according to claim 1, characterized in that: The two ends of the first spring (607) are fixed to one side of the first brush (609) and one side inside the cleaning sleeve (606), respectively. The first spring (607) and the first brush (609) form a telescopic structure. A connecting frame (608) is installed inside the cleaning sleeve (606).

4. A centralized bag filter dust removal device for wood product processing according to claim 1, characterized in that: The fixed plate (6021) has a guide hole (6022) inside, and a moving rod (6019) is inserted into the guide hole (6022). A second brush (6018) is fixed to one side of the moving rod (6019), and a third spring (6020) is sleeved on the outside of the moving rod (6019). The two ends of the third spring (6020) are respectively fixed to one side of the fixed plate (6021) and the second brush (6018).

5. A centralized bag filter dust removal device for wood product processing according to claim 2, characterized in that: The check block (6013) and the squeezing tooth (6010) are provided in a plurality of them, and the plurality of the check block (6013) and the squeezing tooth (6010) are distributed in a ring on the outer and inner sides of the annular sleeve (6012).

6. A centralized bag filter dust removal device for wood product processing according to claim 1, characterized in that: The first brush (609) is provided in multiple sets, and the multiple sets of the first brush (609) are arranged in a ring inside the cleaning sleeve (606).

7. A centralized bag filter dust removal device for wood product processing according to claim 4, characterized in that: Multiple sets of the movable rod (6019) are provided, and the multiple sets of the movable rod (6019) form a guide connection with the guide hole (6022).

8. A centralized bag filter dust removal device for wood product processing according to claim 1, characterized in that: A mounting bracket (605) is installed on one side inside the filter dust collector (1). A reciprocating screw (6026) is installed inside the mounting bracket (605). A thread sleeve (6027) is installed on the outside of the reciprocating screw (6026). A connecting plate (6023) is installed on one side of the thread sleeve (6027). A guide groove (6025) is opened on one side of the mounting bracket (605). One side of the connecting plate (6023) is fixed to one side of the fixing bracket (604). A backflush pipe (601) is installed inside the mounting box (2). A backflush head (603) is installed at the bottom end of the backflush pipe (601). A connecting pipe (602) is installed on one side of the backflush pipe (601).

9. A centralized bag filter dust removal device for wood product processing according to claim 8, characterized in that: The threaded sleeve (6027) is sleeved on the outside of the reciprocating lead screw (6026), and the threaded sleeve (6027) and the reciprocating lead screw (6026) form a threaded connection.

10. A centralized bag filter dust removal device for wood product processing according to claim 8, characterized in that: Sealing strips (6024) are installed on both sides inside the guide groove (6025), and the sealing strips (6024) are symmetrically distributed inside the guide groove (6025).

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