A waste gas treatment device

Abstract

This invention relates to the field of waste gas treatment technology, specifically disclosing a waste gas treatment device, including a primary filter box and a filter plate. The top of the primary filter box has an installation box containing a roll of adhesive tape rotatably connected to the installation box. The primary filter box contains a take-up roller, a first drive assembly, and a second drive assembly. The take-up roller is elastically connected to the second drive assembly in a left-right direction and is located on the right side of the filter plate. A through-slot is provided at the top of the primary filter box for the adhesive tape to pass through. The adhesive tape on the roll passes through the through-slot and connects to the take-up roller. When the second drive assembly drives the take-up roller to move vertically, the first drive assembly drives the take-up roller to wind up the adhesive tape. During the movement of the take-up roller, the adhesive side of the adhesive tape is always kept in contact with the filter plate. This waste gas treatment device can effectively clean the surface of the filter plate and prevent the cleaned impurities from accumulating at the bottom of the primary filter box or re-adhering to the filter plate.

Description

Technical Field

[0001] This invention relates to the field of waste gas treatment technology, and more specifically to a waste gas treatment device. Background Technology

[0002] Waste gas treatment is a crucial step in controlling industrial pollution and protecting the environment. Related technologies typically employ waste gas treatment devices to purify waste gases. The primary filter box is used for initial filtration of waste gas, intercepting large particles such as dust, fibers, and metal shavings. Without this initial treatment, these large particles would directly enter subsequent waste gas treatment equipment, such as activated carbon adsorption devices and catalytic combustion devices, clogging the pores of the activated carbon or covering the surface of the catalyst, thus affecting the normal operation of subsequent equipment. After a period of use, the filter plates of the primary filter box will accumulate a significant amount of impurities, affecting the filtration throughput; therefore, the filter plates need to be cleaned regularly.

[0003] Chinese Patent No. CN221155867U discloses a high-efficiency VOCs organic waste gas treatment device, including a pre-filter box, a rotary filter box, a circulation duct, an adsorption fan, an exhaust tower, a combustion chamber, and a control cabinet. The front side of the pre-filter box is fixedly installed with a door, and the door is provided with an air inlet pipe. The interior of the pre-filter box is provided with a primary filter assembly, a secondary filter plate, and a high-grade filter plate. The primary filter assembly includes a fixed frame hinged to the interior of the pre-filter box. The interior of the fixed frame is provided with a primary filter plate. The top of the fixed frame is hinged to the pre-filter box through a first rotating shaft.

[0004] The aforementioned patent utilizes the thrust of gas to cause a fixed frame to swing, thereby using the force of the swinging frame to detach impurities from the primary filter plate, enabling the primary filter plate to automatically clean itself and increasing its single-use time. However, in actual use, some dust and fibers in the exhaust gas can hook or adhere to the primary filter plate. The force of the swinging frame alone is insufficient to detach these impurities, failing to effectively improve the self-cleaning efficiency of the primary filter plate. Moreover, during the swinging process, impurities that fall from the primary filter plate can be carried back onto the primary filter plate by the wind, increasing the filtration burden on the lower half of the primary filter plate.

[0005] Therefore, there is a need in the field for an exhaust gas treatment device to solve the above problems. Summary of the Invention

[0006] This invention provides a waste gas treatment device, which aims to solve the problem that waste gas treatment devices in related technologies cannot effectively clean impurities hooked or adhered to filter plates, resulting in short single-use time of filter plates, frequent disassembly and replacement of filter plates, and affecting the normal operation of the equipment.

[0007] The present invention provides a waste gas treatment device, comprising a primary filter box and a filter plate disposed within the primary filter box. The primary filter box has an air inlet on the right side and an exhaust outlet on the left side. An installation box is disposed on the top of the primary filter box, and a roll of tape rotatably connected to the installation box is disposed inside the installation box.

[0008] The primary filter box is equipped with a take-up roller, a drive assembly one for driving the take-up roller to rotate, and a drive assembly two for driving the take-up roller to move vertically. The take-up roller is elastically connected to the drive assembly two in the left-right direction, and the take-up roller is located on the right side of the filter plate.

[0009] The top of the primary filter box is provided with a through slot for the tape to pass through. The tape on the tape roll passes through the through slot and is connected to the take-up roller. When the second drive assembly drives the take-up roller to move vertically, the first drive assembly drives the take-up roller to wind up the tape. During the movement of the take-up roller, the sticky side of the tape is always pressed against the filter plate.

[0010] During its downward movement, the take-up roller of this invention can simultaneously push impurities off the filter plate surface downwards and adhere them to the tape for winding. This achieves effective cleaning of the filter plate surface while preventing the cleaned impurities from accumulating at the bottom of the primary filter box or re-adhering to the filter plate. Furthermore, as the take-up roller moves downwards, the airflow presses the stretched tape against the filter plate. As the take-up roller continues to pull downwards, the tape exerts a downward pulling force on the fibers and particles attached to the filter plate, thereby hooking or adhering them to the filter plate. Stubborn impurities are removed, further improving the cleaning effect on the filter plate. In addition, after the take-up roller moves to the bottom of the filter plate, the tape completely covers the filter plate, and the negative pressure on the left side of the filter plate reaches its maximum suction force on the tape, which tightly adheres the tape to the filter plate, increasing the contact area between the tape and the filter plate and strengthening the adhesion of the tape to impurities. During the process of the take-up roller rising and winding, the tape pressed tightly on the filter plate is wound up, thereby improving the cleaning effect of the tape on the filter plate and achieving the collection of the cleaned impurities during the cleaning process.

[0011] Preferably, a guide rod is rotatably connected inside the primary filter box. The guide rod is located on the right side of the filter plate, and a gap is reserved between the guide rod and the filter plate for the tape to pass through. The tape on the tape roll is guided by the guide rod and then connected to the take-up roller.

[0012] The guide rod provides a clear guiding path for the tape, ensuring its stability as it rolls from the tape to the take-up roller and preventing it from tangling or jamming due to deviation from the path. The gap design between the guide rod and the filter plate allows the tape to contact the filter plate surface at the optimal angle and pressure when passing through the gap. As the take-up roller moves downward, the guide rod works in conjunction with the take-up roller to ensure that the tape stretched by the take-up roller adheres as closely as possible to the surface of the filter plate. This facilitates the adhesion and removal of stubborn impurities on the filter plate during the downward movement of the tape.

[0013] Preferably, the drive assembly includes a rack 1 and a rack 2 extending vertically. The rack 1 and rack 2 are respectively provided with helical teeth on one side facing each other, and the helical teeth on the rack 1 and rack 2 are inclined in opposite directions. The take-up roller is fixedly connected to a ratchet arranged coaxially. When the take-up roller moves from top to bottom, the ratchet meshes with the helical teeth on the rack 1 and drives the take-up roller to take up the tape. When the take-up roller moves from bottom to top, the ratchet meshes with the helical teeth on the rack 2 and drives the take-up roller to take up the tape.

[0014] By setting racks one and two with opposite directions of inclined teeth, and a ratchet that works in conjunction with them, the take-up roller can perform the function of taking up the tape when moving from top to bottom and from bottom to top, ensuring that the adhesive side of the tape is always in contact with the filter plate, continuously adhering to and carrying away dust and impurities.

[0015] Preferably, the sides of rack one and rack two that are away from each other are elastically connected to the primary filter box in the left-right direction by springs. The ratchet is located between rack one and rack two. When the take-up roller moves downward, the ratchet pushes rack two to avoid it by squeezing the helical teeth on rack two. When the take-up roller moves upward, the ratchet pushes rack one to avoid it by squeezing the helical teeth on rack one.

[0016] By elastically connecting rack one and rack two to the primary filter box, the meshing relationship between the ratchet and rack one and rack two can be freely switched. Moreover, as the take-up roller continuously winds up the tape, the vertical distance between the take-up roller and the surface of the filter plate will gradually increase, and the position of the ratchet will also change accordingly. The spring can keep rack one and rack two always in contact with both sides of the ratchet, ensuring effective drive of the take-up roller.

[0017] Preferably, the second drive assembly includes a drive motor fixedly mounted on the primary filter box and a lead screw fixedly connected to the output end of the drive motor. A movable block is slidably connected to the primary filter box along the vertical direction. The movable block is threadedly engaged with the lead screw. The take-up roller is elastically connected to the movable block in the left-right direction through an elastic component. The drive motor drives the lead screw to rotate, and the lead screw drives the movable block to move the take-up roller vertically.

[0018] The drive motor rotates the lead screw, which in turn drives the movable block, which is threaded with the lead screw, to slide vertically. This achieves precise vertical positioning and movement of the take-up roller within the primary filter box. The take-up roller is elastically connected to the movable block in the left-right direction via an elastic component. This design ensures that the tape maintains stable contact with the filter plate during the vertical movement of the take-up roller. The elastic component also absorbs and buffers vibrations and impacts during the movement, maintaining the adhesion between the tape and the filter plate, thereby improving the cleaning effect.

[0019] Preferably, the elastic component includes an elastic telescopic rod that extends in the left-right direction and is fixedly installed on the movable block, and the take-up roller is rotatably connected to the elastic telescopic rod.

[0020] Preferably, two mounting plates extend into the primary filter box, forming a groove between the two mounting plates. A mounting block is slidably connected vertically within the groove. The mounting block has an oblong hole. A guide groove extending vertically is formed on the mounting plate. One end of the elastic telescopic rod passes through the guide groove and extends into the oblong hole. An arc-shaped plate is fixedly connected to the end of the elastic telescopic rod located in the oblong hole. The take-up roller is located between the arc-shaped plate and the oblong hole. The elastic telescopic rod abuts the take-up roller against the left end of the oblong hole through the arc-shaped plate.

[0021] The combination of the elastic telescopic rod and the arc plate design allows the take-up roller to automatically adjust its position when it moves vertically or is subjected to external force, ensuring that the adhesive side of the tape always remains in contact with the filter plate.

[0022] Preferably, a material replacement port is provided on one side of the installation box, and a door is provided at the material replacement port. The door is detachably connected to the installation box, and a sealing strip is provided on the edge of the door.

[0023] By opening a material replacement port on one side of the installation box and setting up a detachable door, the process of changing the tape roll becomes simple and quick; the sealing strip set on the edge of the door can effectively prevent rainwater, dust and other impurities from entering the installation box, thereby protecting the tape roll and tape from contamination.

[0024] Preferably, a cover plate is provided on one side of the primary filter box, the cover plate is detachably connected to the primary filter box, and a sealing strip is provided on the edge of the cover plate.

[0025] When it is necessary to remove the tape wound on the take-up roller, remove the cover plate from the primary filter box, remove the tape, and then install the cover plate on the primary filter box. The whole process is convenient and quick. The sealing strip seals the gap between the cover plate and the primary filter box to prevent exhaust gas from escaping from the gap and polluting the external environment.

[0026] Preferably, the tape roll is a PET film tape roll.

[0027] The adhesive layer coated on the surface of the PET film tape roll has high adhesion, which can firmly adhere to dust, particulate matter and other impurities on the filter plate, ensuring effective cleaning of the filter plate, thereby improving the efficiency and quality of exhaust gas treatment. The PET film material has good adhesive stability, reducing the problem of reduced cleaning effect due to decreased adhesion. Moreover, the PET film has excellent mechanical strength and tear resistance, which can withstand the tension and friction of the winding roller during operation, reducing the risk of tape breakage or damage, and improving the durability and reliability of the equipment.

[0028] The beneficial effects of the present invention are as follows: when there are many impurities attached to the filter plate and cleaning is required, the second drive component drives the take-up roller to move vertically, and at the same time controls the first drive component to drive the take-up roller to take up the tape. During the movement of the take-up roller, the adhesive side of the tape is always pressed against the filter plate, so that when the take-up roller moves downward, it pushes the impurities on the surface of the filter plate downward while adhering the impurities to the tape for winding. This not only achieves effective cleaning of the surface of the filter plate, but also avoids the impurities that have been cleaned from accumulating at the bottom of the primary filter box or re-adhering to the filter plate.

[0029] Moreover, as the take-up roller moves downward, the wind force will press the stretched tape onto the filter plate. As the take-up roller continues to pull down, the tape will exert a downward pulling force on the fibers and particles attached to the filter plate, thereby cleaning out the stubborn impurities that are hooked or adhered to the filter plate, further improving the cleaning effect on the filter plate.

[0030] Furthermore, after the take-up roller moves to the bottom of the filter plate, the tape completely covers the filter plate. The negative pressure on the left side of the filter plate reaches its maximum suction force on the tape, which tightly adheres the tape to the filter plate, increasing the contact area between the tape and the filter plate and strengthening the tape's adhesion to impurities. During the process of the take-up roller rising and winding, the tape pressed tightly against the filter plate is wound up, thereby improving the cleaning effect of the tape on the filter plate and achieving the winding and collection of the impurities cleaned up during the cleaning process.

[0031] The tape roll inside the installation box of this invention can be used for a longer period of time without frequent disassembly and replacement. Moreover, the cleaning of the filter plate by the tape greatly increases the single-use time of the filter plate, saving the trouble of frequent disassembly and replacement of the filter plate. The cleaning process of the filter plate of this invention does not require machine shutdown, ensuring the normal operation of the waste gas treatment equipment and improving the waste gas treatment efficiency. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of a waste gas treatment device according to the present invention.

[0033] Figure 2 This is a cross-sectional view of a waste gas treatment device according to the present invention.

[0034] Figure 3 yes Figure 2 A magnified view of part A in the middle.

[0035] Figure 4 This is a schematic diagram of the take-up roller of the waste gas treatment device of the present invention moving below the filter plate.

[0036] Figure 5 This is a schematic diagram of drive component one and drive component two of a waste gas treatment device according to the present invention.

[0037] Figure 6 This is a schematic diagram of rack one and rack two of a waste gas treatment device according to the present invention.

[0038] Figure 7 This is a schematic diagram of the take-up roller of the waste gas treatment device of the present invention located above the filter plate.

[0039] Figure label:

[0040] 1. Primary filter box; 11. Air inlet; 12. Exhaust outlet; 13. Through groove; 14. Guide rod; 15. Mounting plate; 16. Guide groove; 17. Cover plate; 2. Filter plate; 3. Mounting box; 31. Material changing port; 32. Door body; 4. Tape roll; 5. Take-up roller; 6. Rack one; 61. Rack two; 62. Helical tooth; 63. Spring; 7. Drive motor; 71. Lead screw; 72. Movable block; 8. Elastic telescopic rod; 81. Arc plate; 9. Mounting block; 91. Waist-shaped hole. Detailed Implementation

[0041] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0042] like Figures 1 to 7 As shown, a waste gas treatment device of the present invention includes a primary filter box 1 and a filter plate 2 disposed in the primary filter box 1. The primary filter box 1 has an air inlet 11 on the right side and an exhaust port 12 on the left side. Waste gas enters from the air inlet 11, is initially filtered by the filter plate 2, and is discharged from the exhaust port 12 to enter the next treatment process.

[0043] A mounting box 3 is located on the top of the primary filter box 1. Inside the mounting box 3 is a roll of adhesive tape 4, which is rotatably connected to the mounting box 3. The central axis of the roll of adhesive tape 4 extends in the front-to-back direction. As an example, the roll of adhesive tape 4 is a PET film tape roll. A material replacement port 31 is provided on the rear side of the mounting box 3. A door 32 is provided at the material replacement port 31, and the door 32 is detachably connected to the mounting box 3 by bolts. A sealing strip (not shown in the figure) is provided on the edge of the door 32. After the door 32 is installed on the mounting box 3, the sealing strip seals the gap between the door 32 and the edge of the material replacement port 31, preventing external rainwater or impurities from entering the mounting box 3 and affecting the adhesiveness of the roll of adhesive tape 4 inside the mounting box 3. When the roll of adhesive tape 4 needs to be replaced after use, the door 32 is removed from the mounting box 3, the paper tube in the center of the roll of adhesive tape 4 is removed, and then a new roll of adhesive tape 4 is replaced.

[0044] The primary filter box 1 is equipped with a take-up roller 5, a drive assembly 1 for driving the take-up roller 5 to rotate, and a drive assembly 2 for driving the take-up roller 5 to move vertically. The take-up roller 5 is elastically connected to the drive assembly 2 in the left-right direction. The take-up roller 5 is located on the right side of the filter plate 2. The top of the primary filter box 1 has a through groove 13 for the tape to pass through. The tape on the tape roll 4 passes through the through groove 13 and connects to the take-up roller 5.

[0045] When there are many impurities attached to the filter plate 2 and cleaning is required, the second control drive component drives the take-up roller 5 to move vertically, and at the same time controls the first control drive component to drive the take-up roller 5 to take up the tape. During the movement of the take-up roller 5, the adhesive side of the tape is always pressed against the filter plate 2, so that when the take-up roller 5 moves downward, it pushes the impurities on the surface of the filter plate 2 downward while adhering the impurities to the tape for winding. This not only achieves effective cleaning of the surface of the filter plate 2, but also avoids the cleaned impurities from accumulating at the bottom of the primary filter box 1 or re-adhering to the filter plate 2.

[0046] Furthermore, as the take-up roller 5 moves downward, the wind force presses the stretched tape onto the filter plate 2. As the take-up roller 5 continues to pull downward, the tape exerts a downward pulling force on the fibers and particles attached to the filter plate 2, thereby cleaning out stubborn impurities that are hooked or adhered to the filter plate 2, further improving the cleaning effect on the filter plate 2.

[0047] Furthermore, after the take-up roller 5 moves to the bottom of the filter plate 2, the tape completely covers the filter plate 2. The negative pressure on the left side of the filter plate 2 reaches its maximum suction force on the tape, which tightly adheres the tape to the filter plate 2, increasing the contact area between the tape and the filter plate 2 and strengthening the adhesion of the tape to impurities. During the process of the take-up roller 5 rising and winding, the tape pressed tightly on the filter plate 2 is wound up, thereby improving the cleaning effect of the tape on the filter plate 2 and achieving the winding and collection of the impurities cleaned up during the cleaning process.

[0048] The tape roll 4 inside the mounting box 3 can be used for a longer period of time, eliminating the need for frequent disassembly and replacement. Furthermore, the cleaning of the filter plate 2 using the tape significantly increases the single-use duration of the filter plate 2, saving the trouble of frequent disassembly and replacement. The cleaning process of the filter plate 2 in this invention does not require machine shutdown, ensuring the normal operation of the waste gas treatment equipment and improving waste gas treatment efficiency.

[0049] like Figure 3 and Figure 4 As shown, a guide rod 14 is rotatably connected inside the primary filter box 1. The guide rod 14 is located on the right side of the filter plate 2, and a gap is reserved between the guide rod 14 and the filter plate 2 for the tape to pass through. The tape on the tape roll 4 is guided by the guide rod 14 and then connected to the take-up roller 5. During the downward movement of the take-up roller 5, the guide rod 14 enables the tape stretched by the take-up roller 5 to adhere as closely as possible to the surface of the filter plate 2, which is beneficial for the tape to adhere to and pull out stubborn impurities on the filter plate 2 during the downward movement of the tape.

[0050] like Figures 3 to 6 As shown, the drive assembly includes a vertically extending rack 6 and rack 61. Each rack 6 and rack 61 has a helical tooth 62 on its side facing each other, and the helical teeth 62 on rack 6 and rack 61 are inclined in opposite directions. The sides of rack 6 and rack 61 facing away from each other are elastically connected to the primary filter box 1 in the left-right direction via springs 63. A take-up roller 5 is fixedly connected to a coaxially arranged ratchet (not shown in the figure), located between rack 6 and rack 61.

[0051] When the take-up roller 5 moves downwards, the ratchet meshes with the helical teeth 62 on rack 6 and drives the take-up roller 5 to wind up the tape. The ratchet also pushes rack 61 to avoid obstruction by squeezing the helical teeth 62 on rack 61. When the take-up roller 5 moves upwards, the ratchet meshes with the helical teeth 62 on rack 61 and drives the take-up roller 5 to wind up the tape. The ratchet also pushes rack 6 to avoid obstruction by squeezing the helical teeth 62 on rack 6. By elastically connecting racks 6 and 61 to the primary filter box 1, the meshing relationship between the ratchet and racks 6 and 61 can be freely switched. Furthermore, as the vertical distance between the take-up roller 5 and the surface of the filter plate 2 gradually increases during the continuous winding of the tape, the position of the ratchet also changes accordingly. The spring 63 ensures that racks 6 and 61 remain in contact with both sides of the ratchet, guaranteeing effective drive of the take-up roller 5.

[0052] The second drive assembly includes a drive motor 7 fixedly mounted at the bottom of the primary filter box 1 and a lead screw 71 fixedly connected to the output end of the drive motor 7. A movable block 72 is slidably connected vertically to the upper edge of the primary filter box 1. The movable block 72 is threadedly engaged with the lead screw 71. The take-up roller 5 is elastically connected to the movable block 72 in the left-right direction via an elastic component. The elastic component includes an elastic telescopic rod 8, which extends in the left-right direction and is fixedly mounted on the movable block 72. The take-up roller 5 is rotatably connected to the elastic telescopic rod 8.

[0053] The drive motor 7 drives the lead screw 71 to rotate, and the lead screw 71 drives the movable block 72 to move the elastic telescopic rod 8 vertically. The elastic telescopic rod 8 then drives the take-up roller 5 to move vertically. By connecting the take-up roller 5 to the movable block 72 via the elastic telescopic rod 8, the elastic telescopic rod 8 can adapt to the positional changes of the take-up roller 5 as it continuously winds up the tape and moves to the right. Moreover, the elastic force of the elastic telescopic rod 8 ensures that the take-up roller 5 always keeps the sticky side of the tape against the filter plate 2, guaranteeing full contact between the tape and the impurities on the filter plate 2.

[0054] like Figures 3 to 5 , Figure 7 As shown, two mounting plates 15 extend into the primary filter box 1, forming a groove between them. A mounting block 9 is vertically slidably connected within the groove, and a waist-shaped hole 91 is formed in the mounting block 9. A guide groove 16 extending vertically is formed on the mounting plate 15. One end of an elastic telescopic rod 8 passes through the guide groove 16 and extends into the waist-shaped hole 91. An arc-shaped plate 81 is fixedly connected to the end of the elastic telescopic rod 8 located in the waist-shaped hole 91. The take-up roller 5 is located between the arc-shaped plate 81 and the waist-shaped hole 91. The elastic telescopic rod 8, through the arc-shaped plate 81, presses the take-up roller 5 against the left end of the waist-shaped hole 91. By setting the mounting block 9, the stability of the take-up roller 5 during its movement is improved. On the other hand, when it is necessary to remove the tape wound on the take-up roller 5, the arc-shaped plate 81 can be pushed to the right to cancel the pushing of the arc-shaped plate 81 on the take-up roller 5, so that there is a gap between the tape on the take-up roller 5 and the filter plate 2, which facilitates the removal of the tape.

[0055] like Figure 1 and Figure 2 As shown, a cover plate 17 is provided on the front side of the primary filter box 1. The cover plate 17 is detachably connected to the primary filter box 1 by bolts, and a sealing strip (not shown in the figure) is provided on the edge of the cover plate 17. When it is necessary to remove the tape wound on the take-up roller 5, the cover plate 17 is removed from the primary filter box 1. After removing the tape, the cover plate 17 is then installed on the primary filter box 1. The sealing strip seals the gap between the cover plate 17 and the primary filter box 1 to prevent exhaust gas from escaping from the gap and polluting the external environment.

[0056] The specific working principle of the waste gas treatment equipment of the present invention is as follows: the waste gas enters from the inlet 11, is initially filtered by the filter plate 2, and is discharged from the outlet 12 to enter the next treatment process.

[0057] After the primary filter box 1 has been in operation for a set time, the control drive motor 7 drives the lead screw 71 to rotate. The lead screw 71 drives the movable block 72 to move the elastic telescopic rod 8 downward. The elastic telescopic rod 8 drives the take-up roller 5 to move downward. During the downward movement of the take-up roller 5, the ratchet at its end meshes with the helical tooth 62 on the rack 6 and drives the take-up roller 5 to take up the tape. The ratchet pushes the rack 61 to avoid the pressure by squeezing the helical tooth 62 on the rack 61.

[0058] As the take-up roller 5 moves downward, it pushes the impurities on the surface of the filter plate 2 downward while simultaneously adhering the impurities to the tape for winding. The tape pulled downward by the take-up roller 5 is pressed onto the filter plate 2 by the wind force. As the take-up roller 5 continues to pull downward, the tape exerts a downward pulling force on the fibers and particles attached to the filter plate 2, thereby cleaning out the stubborn impurities that are hooked or adhered to the filter plate 2. After the take-up roller 5 moves to the bottom of the filter plate 2, the tape completely covers the filter plate 2. The negative pressure on the left side of the filter plate 2 reaches its maximum suction force on the tape, tightly adhering the tape to the filter plate 2, increasing the contact area between the tape and the filter plate 2, and strengthening the adhesion of the tape to the impurities.

[0059] The control drive motor 7 drives the lead screw 71 to rotate, the lead screw 71 drives the movable block 72 to move the elastic telescopic rod 8 upward, the elastic telescopic rod 8 drives the take-up roller 5 to move upward. During the upward movement of the take-up roller 5, the ratchet at its end meshes with the helical teeth 62 on the rack 61 and drives the take-up roller 5 to take up the tape. The ratchet pushes the rack 6 to avoid the tape by squeezing the helical teeth 62 on the rack 6. When the take-up roller 5 moves to the top of the filter plate 2, the cleaning of the filter plate 2 is completed.

[0060] It is understandable that although the drive assembly one in the above embodiment includes rack one and rack two extending vertically, rack one and rack two are respectively provided with helical teeth on one side facing each other, and a ratchet adapted to rack one and rack two is fixedly connected to the take-up roller, and the rotation drive of the take-up roller is realized by the meshing of the ratchet with rack one or rack two, this is not the only implementation of the drive assembly one. In other embodiments, the drive assembly one can also be configured to include a motor elastically connected to the primary filter box in the left-right direction, and the take-up roller is fixedly connected to the output end of the motor, and the take-up roller is driven to rotate and take up the tape by the motor.

[0061] It is also understood that although the drive component two in the above embodiment includes a drive motor and a lead screw fixedly connected to the output end of the drive motor, with a movable block connected to the lead screw and the take-up roller elastically connected to the movable block, and the drive motor drives the lead screw to move the movable block up and down, and the movable block drives the take-up roller to move up and down, this is not the only implementation of the drive component two. In other embodiments, the drive component two can also be configured to include an electric telescopic rod, an electric telescopic cylinder installed vertically in the primary filter box, and the movable block connected to the electric telescopic rod, and the electric telescopic rod drives the movable block to move the take-up roller up and down.

[0062] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An exhaust gas treatment apparatus comprising a primary filter box and a filter plate provided in the primary filter box, the primary filter box having an air inlet formed in a right side thereof and an exhaust outlet formed in a left side thereof, characterized in that, The top of the primary filter box is equipped with a mounting box, and the mounting box contains a roll of tape that is rotatably connected to the mounting box. The primary filter box is equipped with a winding roller, a drive assembly one for driving the winding roller to rotate, and a drive assembly two for driving the winding roller to move vertically. The winding roller is elastically connected to the drive assembly two in the left-right direction, and the winding roller is located on the right side of the filter plate. The drive assembly includes a rack 1 and a rack 2 extending vertically. Both rack 1 and rack 2 have helical teeth on opposite sides, and the helical teeth on rack 1 and rack 2 are inclined in opposite directions. The take-up roller is fixedly connected to a ratchet that is coaxially arranged. When the take-up roller moves from top to bottom, the ratchet meshes with the helical teeth on rack 1 and drives the take-up roller to take up the tape. When the take-up roller moves from bottom to top, the ratchet meshes with the helical teeth on rack 2 and drives the take-up roller to take up the tape. Rack 1 and rack 2 are elastically connected to the primary filter box in the left and right directions by springs on the opposite sides of each other. The ratchet is located between rack 1 and rack 2. When the take-up roller moves downward, the ratchet pushes rack 2 to avoid it by squeezing the helical teeth on rack 2. When the take-up roller moves upward, the ratchet pushes rack 1 to avoid it by squeezing the helical teeth on rack 1. The second drive assembly includes a drive motor fixedly installed on the primary filter box and a lead screw fixedly connected to the output end of the drive motor. A movable block is slidably connected to the primary filter box along the vertical direction. The movable block is threadedly engaged with the lead screw. The take-up roller is elastically connected to the movable block in the left-right direction through an elastic component. The drive motor drives the lead screw to rotate, and the lead screw drives the movable block to move the take-up roller vertically. The elastic component includes an elastic telescopic rod that extends in the left-right direction and is fixedly installed on the movable block, and the take-up roller is rotatably connected to the elastic telescopic rod; The tape exerts a downward pulling force on the fibers and particles attached to the filter plate, thereby removing stubborn impurities that are hooked or adhered to the filter plate. The top of the primary filter box has a through slot for the tape to pass through. The tape on the tape roll passes through the through slot and connects to the take-up roller. When the second drive assembly drives the take-up roller to move vertically, the first drive assembly drives the take-up roller to wind up the tape. During the movement of the take-up roller, the sticky side of the tape is always pressed against the filter plate.

2. The waste gas treatment equipment according to claim 1, characterized in that, A guide rod is rotatably connected inside the primary filter box. The guide rod is located on the right side of the filter plate, and a gap is reserved between the guide rod and the filter plate for the tape to pass through. The tape on the tape roll is guided by the guide rod and then connected to the take-up roller.

3. The waste gas treatment equipment according to claim 1, characterized in that, Two mounting plates extend into the primary filter box, forming a groove between them. A mounting block is slidably connected vertically within the groove. The mounting block has an oblong hole. A guide groove extends vertically from the mounting plate. One end of the elastic telescopic rod passes through the guide groove and extends into the oblong hole. An arc-shaped plate is fixedly connected to the end of the elastic telescopic rod located within the oblong hole. The take-up roller is located between the arc-shaped plate and the oblong hole. The elastic telescopic rod, through the arc-shaped plate, abuts the take-up roller against the left end of the oblong hole.

4. The waste gas treatment equipment according to claim 1, characterized in that, A material replacement port is provided on one side of the installation box, and a door is provided at the material replacement port. The door is detachably connected to the installation box, and a sealing strip is provided on the edge of the door.

5. The waste gas treatment equipment according to claim 1, characterized in that, A cover plate is provided on one side of the primary filter box. The cover plate is detachably connected to the primary filter box, and a sealing strip is provided on the edge of the cover plate.

6. The waste gas treatment equipment according to claim 1, characterized in that, The tape roll is a PET film tape roll.

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