A dust removal device for a dispersible hydroentangled nonwoven fabric plant

Abstract

This application relates to a dust removal device for a spunlace nonwoven fabric factory, comprising: a suction hood with a gas flow channel formed inside; a forward and reverse motor mounted on the suction hood, with fan blades connected to the output shaft of the motor for driving gas to move within the gas flow channel; a filter screen connected to the suction hood and separating the gas flow channel; a mounting frame with a central rod connected to the suction hood, a waste collection bag coaxially connected to the central rod, the end of the waste collection bag near the filter screen being open to abut against the inner wall of the suction hood, and gas being able to pass through the waste collection bag; and an opening and closing control module for changing the opening and closing state of the waste collection bag, the opening and closing control module being connected to the central rod and the waste collection bag; having the effect of cleaning impurities adhering to the filter screen while reducing damage to the filter screen structure, thereby ensuring the filtration effect.

Description

Technical Field

[0001] This application relates to the technical field of dust removal equipment, and in particular to a dust removal device for a flushable spunlace nonwoven fabric plant. Background Technology

[0002] Flushing spunlace nonwoven fabric is an environmentally friendly nonwoven material that can be flushed in the toilet without clogging pipes and can be quickly dispersed and biodegraded in sewage treatment systems. Since the main raw materials of this type of nonwoven fabric are generally natural or regenerated cellulose fibers such as wood pulp and viscose, and these fibers are very fine, dry and light, a lot of dust is easily generated in the pre-processes of nonwoven fabric production such as opening, carding and web laying, so dust removal treatment is required.

[0003] A Chinese patent application titled "A Dust Removal Device for Textile Workshops" in the related technology includes a fan, and further includes: a filter assembly mounted on the fan; a protective net disposed on the top of the filter assembly; a cleaning assembly disposed on the side of the filter assembly; a collection assembly disposed on the side of the cleaning assembly; and a transmission assembly disposed inside the filter assembly and the cleaning assembly. The transmission assembly includes a first transmission shaft disposed inside the cleaning assembly, with a second transmission gear and a third transmission gear fixedly mounted at both ends of the first transmission shaft, respectively. A motor is fixedly mounted outside the cleaning assembly, and the output end of the motor is connected to the first transmission shaft. A second transmission shaft is disposed inside the cleaning assembly, with a fourth transmission gear and a third transmission gear fixedly mounted at both ends of the second transmission shaft, the third transmission gear meshing with the first transmission gear. The second transmission gear and the fourth transmission gear are used to drive the filter assembly to clean it.

[0004] The aforementioned technologies have the following drawbacks: the transmission component drives the filter component to rotate back and forth, thereby moving the filter component with adhering impurities to the cleaning component for impurity removal. However, for some small impurities, the filter screen used is relatively fine. When the cleaning component, such as a scraper, is used to scrape off the impurities adhering to the filter screen, it will cause irreversible damage to the filter structure of the filter screen, thereby affecting the filtration effect of the filter screen. Summary of the Invention

[0005] In order to reduce damage to the filter structure while cleaning impurities adhering to the filter screen, thereby ensuring the filtration effect, this application provides a dust removal device for a flushable spunlace nonwoven fabric factory.

[0006] The dust removal equipment for a flushable spunlace nonwoven fabric factory provided in this application adopts the following technical solution: A dust removal device for a flushable spunlace nonwoven fabric factory, comprising: An air intake hood, wherein a gas flow channel is formed inside the air intake hood; A forward and reverse motor is mounted on the air intake hood, and a fan blade is connected to the output shaft of the forward and reverse motor to drive the gas to move within the gas flow channel. A filter screen, which is connected to the intake hood and separates the gas flow channels; A mounting frame with a central rod is formed, the mounting frame is connected to the air intake hood, and a waste collection bag is coaxially connected to the central rod. The end of the waste collection bag near the filter screen is open to abut against the inner wall of the air intake hood, and gas can pass through the waste collection bag. An opening and closing control module for changing the opening and closing state of the waste collection bag, the opening and closing control module is connected to the central rod, and the opening and closing control module is connected to the waste collection bag.

[0007] Furthermore, the opening and closing control module includes: Multiple supporting umbrella ribs are connected to the inner wall of the waste collection bag, and one end of each supporting umbrella rib is rotatably connected to the end of the central rod away from the filter screen. A sliding ring is slidably connected to the central rod, and multiple drive umbrella ribs are rotatably connected to the sliding ring. The end of the drive umbrella rib away from the sliding ring is rotatably connected to the end of the support umbrella rib away from the central rod. A drive mechanism for driving the sliding ring to move axially relative to the central rod, the drive mechanism being connected to the central rod and the sliding ring.

[0008] Furthermore, the drive mechanism includes: An electric telescopic rod, wherein the central rod is hollow and the electric telescopic rod is located inside the cavity of the central rod; A connecting guide block is provided, wherein a strip-shaped through groove is formed on the central rod along its own axial direction, and the connecting guide block passes through the strip-shaped through groove to connect with the sliding ring.

[0009] Furthermore, it also includes: A conical air collection bag is provided, wherein the central rod passes through the filter screen and the conical air collection bag is connected to the central rod. The conical air collection bag is located between the filter screen and the fan blades, and the end of the conical air collection bag away from the filter screen is open. At least one air outlet pipe is connected to the air outlet of the air collection bag via an air delivery hose. The air outlet pipe is movable relative to the filter screen, and when the air outlet pipe and / or the filter screen move, the path of the air outlet pipe along the axial direction of the central rod can form a cleaning plane covering the filter screen.

[0010] Furthermore, a spiral guide disc is rotatably connected to the central rod, the air outlet pipe passes through the spiral guide disc and is slidably connected to the spiral guide disc, and a fixed rod with damping is connected to the central rod. The fixed rod is located close to the spiral guide disc, and the air outlet pipe can remain in contact with the fixed rod after the spiral guide disc rotates.

[0011] Furthermore, the inner diameter of the air outlet of the air duct is greater than the spacing between two adjacent layers of guide lines of the spiral guide disc.

[0012] Furthermore, a hollow air supply rod is connected to the central rod, and the air supply rod is connected to the conical air collection bag. There are multiple air outlet pipes, and the air outlet pipes are connected to the air supply rod. The filter screen rotates around the central rod relative to the air intake hood, and the air outlet pipes are inclined toward the filter screen so that the air intake hood can rotate.

[0013] Furthermore, the conical air collection bag is covered with a contoured filter layer on the side away from the fan blade, and the contoured filter layer is connected to multiple air guide tubes with gradually increasing diameters on the side away from the conical air collection bag. The air guide tubes are coaxially arranged with the central rod.

[0014] Furthermore, a contour strip is rotatably connected to the central rod, and the contour strip is simultaneously connected to multiple air guide tubes, with a scraping gap between the contour strip and the contour filter layer.

[0015] Furthermore, the intake hood comprises, in sequence: An enlarged air inlet section is provided, wherein the mounting frame is connected to the enlarged air inlet section, and the waste collection bag abuts against the inner wall of the enlarged air inlet section. A filter mounting section, wherein the filter screen is connected to the filter mounting section, and the filter mounting section is detachably and fixedly connected to the expanded air inlet section; and, The motor mounting part is detachably and fixedly connected to the filter mounting part. The forward and reverse motor is connected to the motor mounting part, and the conical air collection bag is located in the inner cavity of the motor mounting part.

[0016] In summary, the beneficial technical effects of this application are as follows: 1. Dust removal equipment for spunlace nonwoven fabric factories. The suction hood, combined with a reversible motor and fan blades, forms a directional gas flow channel. A filter screen intercepts and filters nonwoven fabric lint from the air passing through this channel, thus achieving dust removal within the factory. A mounting frame with a central rod serves as the mounting base for waste collection bags. The opening and closing of the waste collection bags minimizes interference with the gas flow efficiency during dust removal. During filter cleaning, the counter-rotating fan blades collect any nonwoven fabric lint blown off the filter, preventing it from returning to the factory space. Furthermore, the filter cleaning process eliminates the need for external physical equipment to brush or scrape the filter surface, minimizing damage to the filter's original structure and ensuring its effectiveness and lifespan. An opening / closing control module controls the opening and closing of the waste collection bags.

[0017] 2. Dust removal equipment for spunlace nonwoven fabric factories that can be flushed. The conical air collection bag can collect the airflow in the gas flow channel when the fan blades are reversed by the forward and reverse motor. Then the air is discharged from the conical air collection bag through the air outlet pipe. Since the air inlet area is larger than the air outlet area, the airflow discharged from the air outlet pipe is fast and the blowing force is stronger. Then, under the cooperation of the spiral guide plate and the fixed rod, the air outlet pipe is driven to move in a spiral line, thereby realizing the powerful and complete removal of impurities adhering to the filter screen. 3. Dust removal equipment for spunlace nonwoven fabric factories that can be flushed out, by dividing the suction hood into an enlarged air inlet section, a filter installation section and a motor installation section that are arranged in sequence and connected in pairs, can facilitate the cleaning and discharge of nonwoven fabric lint in the waste collection bag, and also realize the replacement of the filter screen and the maintenance of the forward and reverse motor. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this application; Figure 2 yes Figure 1 A sectional view along the axis of the central rod; Figure 3 yes Figure 2 Partial structural diagram.

[0019] Figure 4 yes Figure 2 A magnified structural diagram of part A in the diagram.

[0020] Figure 5 yes Figure 2 A three-dimensional structural diagram.

[0021] Figure 6 This is a schematic diagram of another filter enhancement cleaning module in Embodiment 2 of this application.

[0022] Explanation of reference numerals in the attached drawings: 1. Suction hood; 11. Expanded air inlet; 12. Filter mounting section; 13. Motor mounting section; 2. Forward and reverse motor; 21. Fan blade; 3. Filter screen; 4. Mounting bracket; 5. Center rod; 51. Waste collection bag; 52. Strip-shaped through groove; 6. Opening and closing control module; 61. Supporting umbrella rib; 62. Sliding ring; 63. Drive umbrella rib; 64. Drive mechanism; 641. Electric telescopic rod; 642. Connecting guide block; 7. Conical air collection bag; 71. Air outlet pipe; 72. Spiral guide disc; 73. Fixed rod; 8. Air supply rod; 9. Contouring filter layer; 91. Air guide tube; 92. Contouring strip. Detailed Implementation

[0023] The following will be combined with the appendix Figure 1 To be continued Figure 6 The technical solutions of this application have been clearly and completely described. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0024] This application discloses a dust removal device for a flushable spunlace nonwoven fabric factory. Example 1

[0025] Reference Figure 1 and Figure 2 A dust removal device for a spunlace nonwoven fabric factory that can be flushed includes an air suction hood 1, a reversible motor 2, a fan blade 21, and a filter screen 3. The air suction hood 1 is hollow and has a gas flow channel inside. The reversible motor 2 is mounted on the air suction hood 1, and one end of the output shaft of the reversible motor 2 is keyed to the fan blade 21. After the output shaft of the reversible motor 2 drives the fan blade 21 to rotate, it can create a negative pressure on one side of the fan blade 21, thereby driving the gas to move in the gas flow channel.

[0026] Reference Figure 2 and Figure 3 Furthermore, in order to achieve reverse blowing and cleaning of the filter screen 3 and collect the blown-off non-woven fabric lint, the system also includes an installation frame 4, a central rod 5, and a waste collection bag 51. The installation frame 4 is connected to the suction hood 1, and the central rod 5 is connected to the installation frame 4. In this application, the central rod 5 is located at the central axis of the gas flow channel. The waste collection bag 51 is coaxially connected to the central rod 5, and the end of the waste collection bag 51 near the filter screen 3 can be closed or opened. When the end of the waste collection bag 51 near the filter screen 3 is open, it can abut against the inner wall of the suction hood 1, thereby requiring all the reverse airflow flowing through the gas flow channel to pass through the filtering and collection action of the waste collection bag 51, thereby collecting the non-woven fabric lint blown off from one side of the filter screen 3.

[0027] Reference Figure 3In order to reduce the interference of the waste collection bag 51 on the airflow in the gas channel when the filter screen 3 is performing normal filtration operation, or to control the clogging progress of non-woven fabric lint on the filter screen 3, an opening and closing control module 6 is also included. The opening and closing control module 6 is connected to the central rod 5 and the waste collection bag 51. It is used to change the opening and closing state of the opening end of the waste collection bag 51. It should be noted that the opening degree of the opening end of the waste collection bag 51 can also be limited by the opening and closing control module 6, so that the blockage on the filter screen 3 is as close as possible from the outer ring of the filter screen 3 towards the center point of the filter screen 3.

[0028] Reference Figure 3 Specifically, the opening and closing control module 6 includes a support umbrella rib 61, a sliding ring 62, and a drive mechanism 64. There are multiple support umbrella ribs 61, which are bonded and fixed to the inner wall of the waste collection bag 51. One end of the support umbrella rib 61 is hinged to the end of the central rod 5 away from the filter screen 3. The sliding ring 62 is slidably connected to the central rod 5, and multiple drive umbrella ribs 63 are rotatably connected to the sliding ring 62. The end of the drive umbrella rib 63 away from the sliding ring 62 is rotatably connected to the end of the support umbrella rib 61 away from the central rod 5, thereby controlling the opening degree of the waste collection bag 51 through the sliding of the sliding ring 62.

[0029] Reference Figure 3 More specifically, the drive mechanism 64 is connected to the central rod 5 and the sliding ring 62, and is used to drive the sliding ring 62 to move relative to the central rod 5 along the axial direction of the central rod 5. The drive mechanism 64 includes an electric telescopic rod 641 and a connecting guide block 642. The central rod 5 is hollow, and the electric telescopic rod 641 is located in the inner cavity of the central rod 5. The movable rod of the electric telescopic rod 641 moves along the axial direction of the central rod 5. The connecting guide block 642 is connected to the movable rod of the electric telescopic rod 641, and a strip-shaped through groove 52 is opened on the central rod 5 along its own axial direction. The connecting guide block 642 passes through the strip-shaped through groove 52 and is bolted to the sliding ring 62.

[0030] Reference Figure 4 and Figure 5Furthermore, because the viscosity and strength of the nonwoven fabric lint in different areas of the filter screen 3 vary, when the fan blades 21 are driven to blow it away by the reversing motor 2, impurities in other areas may have been blown away, but those in some areas may not have been blown away, thus affecting the cleaning quality and effect on the filter screen 3. Therefore, the dust removal equipment for the spunlace nonwoven fabric factory also includes a filter screen reinforcement cleaning module. The filter screen reinforcement cleaning module includes a conical air collection bag 7 and at least one air outlet pipe 71. The conical air collection bag 7 is installed through the filter screen 3 and is connected to the central rod 5. The conical air collection bag 7 is located at the filter screen 3. Between the filter screen 3 and the fan blade 21, the conical air collection bag 7 is open at the end away from the filter screen 3. The air outlet pipe 71 is connected to the air outlet of the air collection bag through a flexible hose. The air outlet pipe 71 can move relative to the filter screen 3. When the air outlet pipe 71 and / or the filter screen 3 move, the path of the air outlet pipe 71 along the axial direction of the central rod 5 can form a cleaning plane covering the entire area of ​​the filter screen 3. In this application, the air outlet pipe 71 can be located outside the central rod 5 or in the hollow inner cavity of the central rod 5. In this case, an air inlet communicating with the air delivery hose is opened on the extension section of the central rod 5 that extends into the inner cavity of the conical air collection bag 7.

[0031] Reference Figure 4 and Figure 5 Specifically, in order to drive the air outlet duct 71 to move, a spiral guide disk 72 is rotatably connected to the central rod 5. The spiral guide disk 72 is arranged in a spiral involute shape. The air outlet duct 71 passes through the spiral guide disk 72 and is slidably connected to the spiral guide disk 72. A fixed rod 73 is rotatably connected to the central rod 5, and the fixed rod 73 rotates with damping between it and the central rod 5. The fixed rod 73 is located close to the spiral guide disk 72, and after the spiral guide disk 72 rotates, it can drive the air outlet duct 71 to move relative to it and drive the fixed rod 73 to rotate. During this process, the air outlet duct 71 and the fixed rod 73 remain in contact.

[0032] Reference Figure 5 Furthermore, in order to coordinate with the spiral expansion movement of the air outlet duct 71 and to achieve full coverage and enhanced blowing of the filter screen 3, the inner diameter of the air outlet duct 71 is larger than the spacing between the two adjacent guide lines of the spiral guide disc 72.

[0033] Reference Figure 5 The side of the conical air collection bag 7 away from the fan blade 21 is covered with a contoured filter layer 9. The side of the contoured filter layer 9 away from the conical air collection bag 7 is connected to multiple air guide tubes 91 with gradually increasing diameters. The air guide tubes 91 are coaxially connected to the central rod 5. In this application, the contoured filter layer 9 can filter the gas that rises along the conical surface of the outer side of the conical air collection bag 7 and support the conical air collection bag 7 itself, thereby ensuring the shape stability of the conical air collection bag 7.

[0034] Reference Figure 5Furthermore, a contour strip 92 is rotatably connected to the central rod 5. The contour strip 92 is simultaneously connected to multiple air guide tubes 91, and a scraping gap is left between the contour strip 92 and the contour filter layer 9. In this application, the rotation of the contour strip 92 can be manually driven by the operator after disassembling the motor mounting part 13, or it can be driven by installing a miniature wind-driven structure such as the wind-driven fan blade 21 when the fan blade 21 rotates in the forward direction to perform the air cleaning work in the factory.

[0035] Reference Figures 2 to 5 Furthermore, to facilitate the replacement, cleaning, and maintenance of each part, the air intake hood 1 includes, in sequence, an expanded air intake section 11, a filter installation section 12, and a motor installation section 13. The mounting bracket 4 is bolted to the inner wall of the expanded air intake section 11, and the waste collection bag 51 can abut against the inner wall of the expanded air intake section 11. The filter installation section 12 is detachably and fixedly connected to the expanded air intake section 11, and the filter 3 is installed inside the filter installation section 12. The motor installation section 13 is detachably and fixedly connected to the filter installation section 12, and the forward and reverse motor 2 is connected to the motor installation section 13. The cone-shaped air collection bag 7 is located in the inner cavity of the motor installation section 13.

[0036] The operational process of this application will now be described in a common application scenario. It should be noted that this common implementation scheme should not be used as the basis for determining the essential features for understanding the technical problem claimed to be solved by this application; it is merely an example.

[0037] The implementation principle of the dust removal equipment for a spunlace nonwoven fabric factory in Embodiment 1 of this application is as follows: When the spunlace nonwoven fabric factory is in normal production, the external power supply provides power for the operation of the forward and reverse motor 2. The output shaft of the forward and reverse motor 2 drives the fan blade 21 to rotate. Under the influence of the unilateral negative pressure caused by the rotation of the fan blade 21, the air containing nonwoven fabric lint floating in the factory is drawn into the suction hood 1 and filtered by the filter screen 3 before being discharged from the other end of the suction hood 1 into the factory, thus completing the treatment operation of the spunlace nonwoven fabric lint floating in the factory.

[0038] As the operating time of the reversible motor 2 increases, the mass of non-woven fabric lint adhering to the side of the filter screen 3 away from the motor 2 also increases. The adhering non-woven fabric lint gradually clogs the working surface of the filter screen 3, thereby affecting the dust removal effect and efficiency of the non-woven fabric lint in the factory. It can also prevent air from passing through the filter screen 3, which in turn causes the reversible motor 2 to drive the fan blade 21 to run idle, affecting the service life of the reversible motor 2. Therefore, when the reversible motor 2 has been used for a certain period of time, or when the sensor detects that the air pressure in the gas flow channel section behind the filter screen 3 is lower than the threshold, or when the air pressure in the gas flow channel section behind the filter screen 3 is lower than the threshold and triggers the linkage controller, the reversible motor 2 will drive the fan blade 21 to reverse.

[0039] As the forward and reverse motor 2 reverses, the flow direction of the gas in the gas channel becomes completely opposite to the initial direction. At the same time, the opening and closing control module 6 controls the opening end of the waste collection bag 51 to be in the open state. At this time, the flowing gas blows the non-woven fabric lint aggregate that is adhered to the working surface of the filter screen 3 away from the filter screen 3. The blown-away non-woven fabric lint falls into the waste collection bag 51 under the drive of the airflow. At the same time, since the waste collection bag 51 is made of breathable material, it can also play a secondary filtration role.

[0040] It is important to emphasize that, because the airflow driven by the fan blades 21 directly acts on the entire filter screen 3, some areas may have non-woven fabric lint that is firmly adhered and cannot be blown away, resulting in an unsatisfactory cleaning effect. Therefore, to avoid this situation, a filter screen reinforcement cleaning module is installed between the filter screen 3 and the fan blades 21. After the forward and reverse motor 2 reverses, it drives the fan blades 21 to rotate. At this time, the fan blades 21 drive the airflow towards the filter screen 3. During the movement, the airflow is drawn into the cone-shaped air collection bag 7, and then discharged towards the filter screen 3 through the narrowed-diameter air outlet pipe 71. Simultaneously, under the combined driving action of the rotating spiral guide disc 72 and the damped rotating fixed rod 73, the air outlet 71 moves along the guide line formed by the spiral guide disc 72. At this time, the moving trajectory of the air outlet 71 is projected onto the filter screen 3 in the shape of a spiral involute. Since the inner diameter of the air outlet of the air outlet 71 is larger than the distance between the two adjacent guide lines, the gas entering the conical air collection bag 7 will increase the airflow pressure or flow velocity after being discharged through the air outlet 71, thereby achieving localized and sequential enhanced cleaning of the filter screen 3 and achieving full coverage of the filter screen 3. Example 2

[0041] Reference Figure 6 The difference between Embodiment 2 and Embodiment 1 is that the filter reinforcement cleaning module is different. Specifically, the filter reinforcement cleaning module includes an air supply rod 8, which is hollow. The air supply pipe is connected to the cone-shaped air collection bag 7 by a flexible hose. There are multiple air outlet pipes 71, which are connected to the air supply rod 8. The filter screen 3 rotates around the central rod 5 relative to the suction hood 1. The air outlet pipes 71 are tilted towards the filter screen 3. The airflow discharged from the multiple air outlet pipes 71 on opposite sides of the central rod 5 causes the suction hood 1 to rotate. It should be noted that the distance between the multiple air outlet pipes 71 on opposite sides of the central rod 5 and the central rod 5 increases sequentially. For example, the distance between the first and second air outlet pipes 71 on the left side of the central rod 5 is such that after the filter screen 3 rotates, the uncleaned annular area formed by it is filled by the first air outlet pipe 71 on the right side of the central rod 5.

[0042] The implementation principle of the dust removal equipment for a spunlace nonwoven fabric factory in Embodiment 2 of this application is as follows: When the spunlace nonwoven fabric factory is in normal production, the external power supply provides power for the operation of the forward and reverse motor 2. The output shaft of the forward and reverse motor 2 drives the fan blade 21 to rotate. Under the influence of the unilateral negative pressure caused by the rotation of the fan blade 21, the air containing nonwoven fabric lint floating in the factory is drawn into the suction hood 1 and filtered through the filter screen 3 before being discharged from the other end of the suction hood 1 into the factory, thus completing the treatment operation of the spunlace nonwoven fabric lint floating in the factory.

[0043] As the operating time of the reversible motor 2 increases, the mass of non-woven fabric lint adhering to the side of the filter screen 3 away from the motor 2 also increases. The adhering non-woven fabric lint gradually clogs the working surface of the filter screen 3, thereby affecting the dust removal effect and efficiency of the non-woven fabric lint in the factory. It can also prevent air from passing through the filter screen 3, which in turn causes the reversible motor 2 to drive the fan blade 21 to run idle, affecting the service life of the reversible motor 2. Therefore, when the reversible motor 2 has been used for a certain period of time, or when the sensor detects that the air pressure in the gas flow channel section behind the filter screen 3 is lower than the threshold, or when the air pressure in the gas flow channel section behind the filter screen 3 is lower than the threshold and triggers the linkage controller, the reversible motor 2 will drive the fan blade 21 to reverse.

[0044] As the forward and reverse motor 2 reverses, the flow direction of the gas in the gas channel becomes completely opposite to the initial direction. At the same time, the opening and closing control module 6 controls the opening end of the waste collection bag 51 to be in the open state. At this time, the flowing gas blows the non-woven fabric lint aggregate that is adhered to the working surface of the filter screen 3 away from the filter screen 3. The blown-away non-woven fabric lint falls into the waste collection bag 51 under the drive of the airflow. At the same time, since the waste collection bag 51 is made of breathable material, it can also play a secondary filtration role.

[0045] It is important to emphasize that, because the airflow driven by the fan blades 21 directly acts on the entire filter screen 3, some areas may have non-woven fabric lint that is firmly adhered and cannot be blown away, resulting in an unsatisfactory cleaning effect. Therefore, to avoid this situation, a filter screen reinforcement cleaning module is installed between the filter screen 3 and the fan blades 21. After the forward and reverse motor 2 reverses, it drives the fan blades 21 to rotate. At this time, the fan blades 21 drive the airflow towards the filter screen 3. During the movement, the airflow is drawn into the conical air collection bag 7, and then discharged towards the filter screen 3 through the narrowed-diameter air outlet pipe 71. Since it is connected to the air supply... Because the rod 8 is positioned at an angle to the air outlet pipes 71 on either side of the central rod 5, the superimposed filter screen 3 can rotate. Therefore, the air discharged from the conical air collection bag 7 and the air outlet pipe 71 blows away the non-woven fabric lint adhering to the working surface of the filter screen 3 in the corresponding area. At the same time, the airflow blown out by the air outlet pipe 71 will drive the filter screen 3 to rotate, thereby achieving a comprehensive cleaning of the filter screen 3. The gas entering the conical air collection bag 7 will increase the airflow pressure or flow speed after being discharged through the air outlet pipe 71, thereby achieving a localized and sequentially enhanced cleaning of the filter screen 3 and achieving full coverage of the filter screen 3.

[0046] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," "third," and similar terms used in this application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. The terms "an" or "a" and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including" and similar terms mean that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including" and their equivalents, and do not exclude other elements or objects. "Above," "below," "left," "right," etc., are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0047] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A dust removal device for a flushable spunlace nonwoven fabric factory, characterized in that, include: A suction hood (1) is provided, wherein a gas flow channel is formed inside the suction hood (1); A forward and reverse motor (2) is mounted on the air intake hood (1), and a fan blade (21) is connected to the output shaft of the forward and reverse motor (2) for driving the gas to move in the gas flow channel; A filter screen (3) is connected to the air intake hood (1) and the filter screen (3) separates the gas flow channels; A mounting frame (4) with a central rod (5) is formed. The mounting frame (4) is connected to the air suction hood (1). A waste collection bag (51) is coaxially connected to the central rod (5). The end of the waste collection bag (51) near the filter screen (3) is open to abut against the inner wall of the air suction hood (1), and gas can pass through the waste collection bag (51). An opening and closing control module (6) for changing the opening and closing state of the waste collection bag (51), the opening and closing control module (6) is connected to the central rod (5), and the opening and closing control module (6) is connected to the waste collection bag (51).

2. The dust removal equipment for a flushable spunlace nonwoven fabric factory according to claim 1, characterized in that, The opening and closing control module (6) includes: Multiple supporting umbrella ribs (61) are connected to the inner wall of the waste collection bag (51), and one end of the supporting umbrella ribs (61) is rotatably connected to the end of the central rod (5) away from the filter screen (3). A sliding ring (62) is slidably connected to the central rod (5), and multiple driving umbrella ribs (63) are rotatably connected to the sliding ring (62). The end of the driving umbrella rib (63) away from the sliding ring (62) is rotatably connected to the end of the supporting umbrella rib (61) away from the central rod (5). A drive mechanism (64) for driving the sliding ring (62) to move axially relative to the center rod (5), the drive mechanism (64) being connected to the center rod (5) and the sliding ring (62).

3. A dust removal device for a flushable spunlace nonwoven fabric factory according to claim 2, characterized in that, The drive mechanism (64) includes: An electric telescopic rod (641) is provided, wherein the central rod (5) is hollow and the electric telescopic rod (641) is located in the inner cavity of the central rod (5); A connecting guide block (642) is provided. A strip-shaped through groove (52) is provided on the center rod (5) along its own axial direction. The connecting guide block (642) passes through the strip-shaped through groove (52) and is connected to the sliding ring (62).

4. A dust removal device for a flushable spunlace nonwoven fabric factory according to any one of claims 1-3, characterized in that, Also includes: A conical air collection bag (7) is provided, wherein the central rod (5) passes through the filter screen (3) and the conical air collection bag (7) is connected to the central rod (5). The conical air collection bag (7) is located between the filter screen (3) and the fan blade (21), and the end of the conical air collection bag (7) away from the filter screen (3) is open. At least one air outlet pipe (71) is connected to the air outlet of the air collection bag via an air delivery hose. The air outlet pipe (71) is movable relative to the filter screen (3). When the air outlet pipe (71) and / or the filter screen (3) are moved, the path of the air outlet pipe (71) along the axial direction of the central rod (5) can form a cleaning plane covering the filter screen (3).

5. A dust removal device for a flushable spunlace nonwoven fabric factory according to claim 4, characterized in that, A spiral guide disk (72) is rotatably connected to the central rod (5). The air outlet pipe (71) passes through the spiral guide disk (72) and is slidably connected to the spiral guide disk (72). A fixed rod (73) with damping is connected to the central rod (5). The fixed rod (73) is located close to the spiral guide disk (72), and the spiral guide disk (72) can keep the air outlet pipe (71) in contact with the fixed rod (73) after it rotates.

6. A dust removal device for a flushable spunlace nonwoven fabric factory according to claim 5, characterized in that, The inner diameter of the air outlet of the air outlet pipe (71) is larger than the spacing between two adjacent layers of guide lines of the spiral guide disc (72).

7. A dust removal device for a flushable spunlace nonwoven fabric factory according to claim 4, characterized in that, A hollow air supply rod (8) is connected to the central rod (5), and the air supply rod (8) is connected to the conical air collection bag (7). There are multiple air outlet pipes (71), and the air outlet pipes (71) are connected to the air supply rod (8). The filter screen (3) rotates around the central rod (5) relative to the air intake hood (1), and the air outlet pipes (71) are inclined toward the filter screen (3) so that the air intake hood (1) can rotate.

8. A dust removal device for a flushable spunlace nonwoven fabric factory according to claim 4, characterized in that, The conical air collection bag (7) is covered with a contoured filter layer (9) on the side away from the fan blade (21), and the contoured filter layer (9) is connected to a plurality of air guide tubes (91) with gradually increasing diameter on the side away from the conical air collection bag (7). The air guide tubes (91) are coaxially arranged with the central rod (5).

9. A dust removal device for a flushable spunlace nonwoven fabric factory according to claim 8, characterized in that, A contour strip (92) is rotatably connected to the central rod (5). The contour strip (92) is simultaneously connected to multiple air guide tubes (91), and a scraping gap is left between the contour strip (92) and the contour filter layer (9).

10. A dust removal device for a flushable spunlace nonwoven fabric factory according to claim 4, characterized in that, The air intake hood (1) comprises, in sequence: The expansion air inlet (11) is connected to the mounting bracket (4), and the waste collection bag (51) abuts against the inner wall of the expansion air inlet (11). The filter screen mounting part (12) is connected to the filter screen (3), and the filter screen mounting part (12) is detachably and fixedly connected to the expanded air inlet part (11); In addition, there is a motor mounting part (13), which is detachably and fixedly connected to the filter mounting part (12), the forward and reverse motor (2) is connected to the motor mounting part (13), and the conical air collection bag (7) is located in the inner cavity of the motor mounting part (13).

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