Dust removal system for filter rod forming granules

Abstract

The application relates to a filter rod forming particle dust removal system, which comprises a mounting bracket, a spreading groove, a metering roller, a dust remover and an air sprayer. The spreading groove is installed on the mounting bracket near a material outlet, and a material discharge port and a dust removal port with a filter screen are arranged on the spreading groove. The metering roller is rotatably installed on the mounting bracket near a material inlet, the metering roller rotates to bring the material into the spreading groove, and the material is discharged from the material discharge port of the spreading groove. The dust remover is arranged on the spreading groove near the dust removal port. The air sprayer is arranged in the spreading groove. In the application, the air sprayer is matched with the dust remover, the air sprayer blows air on the material in the spreading groove to separate dust and discharge the dust to the dust removal port, the dust remover extracts the dust near the dust removal port of the spreading groove, fine dust particles are removed in time, the metering roller is prevented from being blocked and stopped, the content of fine dust in the filter rod can be reduced, defective products can be reduced, and the quality of the filter rod can be improved.

Description

Technical Field

[0001] This application relates to the field of purification technology and equipment in the filter rod forming process, and more specifically, to a filter rod forming particle dust removal system. Background Technology

[0002] When producing granular filter rods in a filter rod forming machine, it is necessary to remove the fine dust particles inside. The particles are conveyed through metering rollers and spreading troughs, and finally fall onto the fiber bundle to form the filter rods together.

[0003] Current technologies for removing small dust particles generally employ negative pressure dust collection. However, when the negative pressure is too high, it removes large particles along with the dust, resulting in the loss of these large particles. Conversely, when the negative pressure is too low, dust cannot be completely removed in time, and dust accumulation can cause blockage of the metering rollers within a short period. This leads to the filter rods becoming lighter, triggering the PLC controller and causing a shutdown. Furthermore, the inability to remove fine dust increases the content of fine dust within the filter rod's filament bundles, severely affecting the quality of the filter rods and potentially resulting in defective products. Utility Model Content

[0004] The purpose of this application is to provide a filter rod forming particle dust removal system that can reduce clogging.

[0005] To achieve the above objectives, this application provides a filter rod forming particle dust removal system, comprising: The mounting bracket is used to provide a mounting base and is provided with a material inlet and a material outlet. A spreading trough is installed on the mounting bracket near the material outlet, and the spreading trough is provided with a discharge port and a dust removal port with a filter screen; A metering roller is rotatably mounted on the mounting bracket near the material inlet. The rotation of the metering roller drives the material into the spreading trough, and the material is discharged from the discharge port of the spreading trough. A dust collector is installed on the spreading trough near the dust collection port and is used to extract the dust discharged from the dust collection port; An air jet is provided in the spreading trough and is used to blow air onto the material to separate dust from the material and discharge it toward the dust removal port.

[0006] In an optional embodiment, the air injector includes a plurality of nozzles, wherein the plurality of nozzles spray air in the same direction; The multiple nozzles are evenly distributed on two mutually parallel straight lines.

[0007] In an optional embodiment, a mounting frame is fixedly provided on the inner wall of the spreading trough. The mounting frame is provided with an inclined mounting wall and a material-retaining wall. The inclined mounting wall provides a mounting base for the nozzle. The material-retaining wall is connected to the inclined mounting wall and is distributed sequentially along the material movement direction.

[0008] In an optional embodiment, the airflow direction of the nozzle is at an angle relative to the material movement direction, so that the airflow ejected from the nozzle blows the dust contained in the material to the dust removal port.

[0009] In an optional embodiment, the dust collector includes a dust collection chamber with a negative pressure port, the dust collection chamber being fixedly disposed on the spreading trough near the dust collection port, the negative pressure port being used to adsorb dust discharged from the dust collection port.

[0010] In an optional embodiment, the dust collector further includes an auxiliary airflow nozzle disposed in the dust collection chamber near the negative pressure port. The airflow injected from the auxiliary airflow nozzle forms an auxiliary airflow band at the negative pressure port to promote dust entry into the negative pressure port.

[0011] In an optional embodiment, the auxiliary airflow nozzle is in the shape of a flat, fan-shaped nozzle.

[0012] In an optional embodiment, a cleaning nozzle is also included, which is disposed in the mounting bracket near the metering roller, and the airflow ejected from the cleaning nozzle is used to clean the metering roller.

[0013] In an optional embodiment, at least one first vibrator is further included, which is fixedly mounted on the dust collection chamber and is used to apply vibration to the dust collection chamber.

[0014] In an optional embodiment, at least one second vibrator is further included, which is fixedly disposed on the spreading trough and is used to apply vibration to the spreading trough.

[0015] In this application, an air jet and a dust collector are used in combination. The air jet blows air onto the material in the spreading trough to separate the dust and discharge it to the dust collection port. The dust collector extracts the dust near the dust collection port in the spreading trough, which removes fine dust particles in time, prevents blockage of the metering roller and machine shutdown, and can also reduce the content of fine dust in the filter rod filaments, reduce defective products and improve the quality of the filter rod.

[0016] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the structure from one perspective of one embodiment of the filter rod molding particle dust removal system provided in this application; Figure 2 A cross-sectional view of one embodiment of the filter rod molding particle dust removal system provided in this application; Figure 3 This is a schematic diagram of a partial structure of one embodiment of the filter rod forming particle dust removal system provided in this application, including an air ejector, a spreading trough, and a second vibrator, etc. Figure 4 This is a schematic diagram of a partial structure of one embodiment of the filter rod forming particle dust removal system provided in this application, including an air ejector, etc. Figure 5 This is a schematic diagram of a partial structure of one embodiment of the filter rod forming particle dust removal system provided in this application, including a filter screen, a negative pressure port, and a dust collection chamber, etc. Figure 6 This is a schematic diagram of a portion of the structure of one embodiment of the filter rod forming particle dust removal system provided in this application, including auxiliary airflow nozzles, etc.

[0019] icon: 10-Metering roller; 11-Mounting bracket; 112-Material inlet; 114-Material outlet; 12-Cleaning nozzle; 20-Dust collector; 201-Negative pressure port; 202-Dust collection chamber; 203-Auxiliary airflow jet nozzle; 22-Spreading trough; 222-Discharge port; 23-Air jetter; 232-Spray head; 234-Mounting bracket; 236-Installation inclined wall; 238-Blocking wall; 24-Filter screen; 25-Trough cover plate; 26-Trough side plate; 27-Second vibrator; 28-Trough bottom plate; 29-First vibrator. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0021] In the description of this application, it should be noted that the terms "inner" and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0022] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "setup" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0023] Embodiments of this application provide a filter rod forming particle dust removal system, including a mounting bracket 11, a spreading trough 22, a metering roller 10, a dust collector 20, and an air jet 23.

[0024] Mounting bracket 11 is used to provide a mounting base. Mounting bracket 11 is fixedly mounted on a fixed frame or other fixed platform, such as a fixed frame for tobacco equipment.

[0025] For example, such as Figure 1 and Figure 2 As shown, the mounting bracket 11 is configured as a shell structure with a cavity.

[0026] like Figure 2 As shown, the mounting bracket 11 is provided with a material inlet 112 and a material outlet 114. The material enters the mounting bracket 11 from the material inlet 112 and is discharged from the material outlet 114.

[0027] like Figure 1 and Figure 2 As shown, the spreading trough 22 is installed on the mounting bracket 11 near the material outlet 114. The spreading trough 22 is provided with a discharge port 222 and a dust removal port with a filter screen 24.

[0028] like Figure 2 As shown, the material in the mounting bracket 11 is discharged from the material outlet 114 and enters the spreading trough 22, and then discharged from the discharge port 222 of the spreading trough 22.

[0029] like Figure 1 and Figure 2As shown, the metering roller 10 is rotatably mounted on the mounting bracket 11 near the material inlet 112. The rotation of the metering roller 10 drives the material entering from the material inlet 112 to be transported to the material outlet 114 and enters the spreading trough 22. Then the material is discharged from the discharge port 222 of the spreading trough 22.

[0030] Initially, the material contains dust, and the dust collector 20 can remove dust from the material.

[0031] For example, the spreading trough 22 includes a trough cover plate 25, trough side plates 26 and trough bottom plate 28; two trough side plates 26 are provided, one trough side plate 26 is fixedly installed on one side of the trough bottom plate 28, and the other trough side plate 26 is fixedly installed on the other side of the trough bottom plate 28 to form a U-shaped structure, and the trough cover plate 25 is fixedly installed on the trough side plate 26, and the fixing method is, for example, welding, snap-fit ​​or integral molding.

[0032] like Figure 1 and Figure 2 As shown, the dust collector 20 is installed on the spreading trough 22 near the dust collection port, and is used to extract the dust discharged from the dust collection port.

[0033] like Figure 1 and Figure 2 As shown, the air jet 23 is installed on the bottom plate of the spreading trough 22 and is used to blow air onto the material to separate the dust from the material and discharge it to the dust removal port.

[0034] For example, the filter screen 24 is a 40-mesh filter screen with a pore size ranging from 0.4mm to 0.5mm. In this embodiment, the filter screen 24 is made of stainless steel. To improve the anti-clogging performance of the filter screen 24 and extend its service life, a polytetrafluoroethylene (PTFE) anti-stick coating is applied to its surface to effectively prevent the adhesion and accumulation of particulate dust.

[0035] During use, dust containing the material enters the mounting bracket 11 through the material inlet 112; the metering roller 10 conveys the material in the mounting bracket 11 and discharges it through the material outlet 114, and then enters the spreading trough 22; the material in the spreading trough 22 is discharged from the discharge port 222; at the same time, the material in the spreading trough 22 is blown away by the gas sprayed by the air jet 23, causing the dust in the material to enter the dust removal port, and part of the material blown towards the dust removal port is blocked by the filter screen 24 at the dust removal port, and the dust is discharged from the dust removal port and collected by the dust collector 20.

[0036] Existing negative pressure dust removal technologies suffer from problems such as excessive negative pressure leading to the loss of large particles, and insufficient negative pressure failing to remove dust in a timely manner, causing blockage of the metering roller 10, affecting the quality of filter rods, and even producing defective products. The filter rod forming particle dust removal system provided in this application avoids the drawbacks of relying solely on negative pressure dust removal by using an air jet 23 in conjunction with a dust collector 20.

[0037] Air jet 23 is installed in spreading trough 22 to blow air onto the material, which can separate dust from the material and discharge it to the dust removal port; dust collector 20 is installed on spreading trough 22 near the dust removal port, which can extract the dust discharged from the dust removal port, remove fine dust particles in the material in time, prevent dust accumulation and blockage of metering roller 10, and avoid the PLC controller from being triggered and shutting down due to the filter rod becoming lighter.

[0038] By effectively removing fine dust from the material, the content of fine dust in the filter rod's filament bundles is reduced, the generation of defective products is reduced, and the quality of the filter rod is improved.

[0039] like Figure 3 As shown, in one embodiment, the air jet 23 includes a plurality of nozzles 232, the plurality of nozzles 232 having the same jet direction.

[0040] Multiple nozzles 232 are evenly distributed on two parallel straight lines.

[0041] For example, twenty-eight nozzles 232 are arranged on each straight line, and the distance between two adjacent nozzles 232 on the same straight line is 10 mm. The nozzles 232 are staggered between adjacent straight lines. The working air pressure of the nozzles 232 is set to 1 MPa-2 MPa. Of course, the working air pressure can also be adjusted according to the actual working conditions, such as 2 MPa-3 MPa. The number of nozzles 232 can be set according to the actual working conditions, such as thirty nozzles 232 distributed on each straight line, to achieve the best particulate material guiding effect.

[0042] In this application, multiple nozzles 232 spray air in the same direction and are evenly distributed on two parallel straight lines, which can form a concentrated and uniform airflow to thoroughly and effectively blow away the material, enhance the ability to separate dust from the material, and improve dust removal efficiency.

[0043] In this application, the nozzles 232 are staggered between adjacent straight lines. This layout can make the airflow coverage wider and more uniform, avoid dead corners in the blowing process, and improve dust removal efficiency.

[0044] like Figure 4 As shown, in one embodiment, an installation frame 234 is fixedly provided on the inner wall of the spreading trough 22; exemplaryly, the installation frame 234 is fixedly provided in the spreading trough 22 by means of welding, snap-fit ​​or bolt connection.

[0045] like Figure 4 As shown, the mounting bracket 234 is provided with an inclined mounting wall 236 and a baffle wall 238. The inclined mounting wall 236 provides a mounting base for the nozzle 232. The nozzle 232 is fixedly mounted on the inclined mounting wall 236 by means of welding, gluing, snap-fitting or bolt connection.

[0046] The material blocking wall 238 is connected to the inclined mounting wall 236 and is distributed sequentially along the material movement direction, so that the material blocking wall 238 can prevent the material from contacting the inclined mounting wall 236 and the nozzle 232.

[0047] For example, such as Figure 4 As shown, the inclined wall surface 236 is installed at an angle relative to the vertical direction.

[0048] For example, the retaining wall 238 is arranged horizontally or inclined relative to the horizontal direction.

[0049] In this application, the material-blocking wall 238 effectively blocks the material, preventing it from directly contacting the inclined wall 236 and the nozzle 232. This prevents the material from causing damage such as collision, wear, or blockage to the nozzle 232, extending its service life and ensuring the stability of the nozzle 232's spraying effect, thus ensuring that it can continuously and accurately complete operations such as blowing air.

[0050] In this application, the inclined wall surface 236 is installed at an angle relative to the vertical direction, so that the gas sprayed by the nozzle 232 can act on the material more effectively, achieve better separation of dust and material, and improve the dust removal effect.

[0051] When the material carrying dust collides with the baffle wall 238, the material and dust are subjected to reaction forces. However, due to their different inertia, the two move along different paths after rebounding from the reaction forces, thus promoting the separation of the material and dust.

[0052] like Figure 4 As shown, in one embodiment, the airflow jet direction of the nozzle 232 has an angle α with respect to the material movement direction, so that the airflow ejected from the nozzle 232 blows the dust contained in the material to the dust removal port.

[0053] For example, under normal circumstances, the material falls roughly vertically in the spreading trough 22, that is, the airflow spray direction of the nozzle 232 has an angle α with the vertical direction.

[0054] For example, 30°≤α≤60°, and the included angle α can be set to 30°, 35°, 40°, 45°, 50°, 55° or 60°, etc.

[0055] In this application, the airflow jet direction of the nozzle 232 is set at an angle. During the process of the nozzle 232 blowing air onto the material, it can both blow the dust in the material toward the dust removal port and reduce interference with the material.

[0056] The range of 30°≤α≤60° is optimized based on the material's falling characteristics. Within this range, the airflow can generate sufficient horizontal force to propel dust towards the dust collector inlet, and also utilize vertical force to assist the material in a stable fall, achieving efficient dust removal while adapting to the material's falling state.

[0057] An inclined airflow direction effectively avoids excessive impact on materials when blowing air to remove dust. If the angle is too large, the horizontal component of the airflow will be too strong, potentially causing material dispersion and altering its trajectory; if the angle is too small, the dust cannot be effectively dispersed. An angle range of 30°-60° balances dust removal and material interference, guiding dust towards the dust collection port while minimizing interference with the normal falling and flowing of materials, ensuring the stability and continuity of material processing.

[0058] like Figure 1 , Figure 2 and Figure 5 As shown, in one embodiment, the dust collector 20 includes a dust collection chamber 202 with a negative pressure port 201. The dust collection chamber 202 is fixedly disposed on the spreading trough 22 near the dust collection port. The negative pressure port 201 is used to adsorb the dust discharged from the dust collection port.

[0059] For example, the negative pressure port 201 of the dust collection chamber 202 can generate negative pressure to suck up dust, and the dust collection chamber 202 is provided with a negative pressure fan or negative pressure pipe to maintain negative pressure at the negative pressure port 201.

[0060] like Figure 6 As shown, in one embodiment, the dust collector 20 further includes an auxiliary airflow nozzle 203, which is disposed in the dust collection chamber 202 near the negative pressure port 201. The airflow injected from the auxiliary airflow nozzle 203 forms an auxiliary airflow band at the negative pressure port 201 to promote dust to enter the negative pressure port 201.

[0061] For example, the auxiliary airflow nozzle 203 is connected to a device such as a fan or air compressor to provide flowing air to the auxiliary airflow nozzle.

[0062] like Figure 6 As shown, in one embodiment, the auxiliary airflow nozzle 203 is in the shape of a flat fan-shaped nozzle.

[0063] The airflow spray width of the auxiliary airflow nozzle 203 is greater than or equal to 80% of the width of the inner wall of the negative pressure port 201. The working air pressure of the auxiliary airflow nozzle 203 is controlled within the range of 0.3-0.6 MPa. Its main function is to enhance the dust collection efficiency of the negative pressure dust collector and prevent materials from accumulating near the negative pressure port 201.

[0064] like Figure 2As shown, in one embodiment, the filter rod forming particle dust removal system further includes a cleaning nozzle 12, which is disposed in the mounting bracket 11 near the metering roller 10, and the airflow ejected from the cleaning nozzle 12 is used to clean the metering roller 10.

[0065] For example, the cleaning nozzle 12 is connected to a device such as a fan or air compressor to provide airflow to the cleaning nozzle 12.

[0066] The directional positive pressure airflow generated by the cleaning nozzle 12 acts directly on the grooved area of ​​the metering roller 10 surface. The cleaning nozzle 12 uses compressed air at a pressure of 0.4-0.8 MPa to generate a directional positive pressure airflow. This airflow acts directly on the grooved area of ​​the metering roller 10 surface, efficiently removing the accumulated dust therein, and simultaneously guiding the stripped dust directly into the dust removal port, ensuring the cleanliness of the metering roller 10 surface.

[0067] like Figure 1 As shown, in one embodiment, the filter rod forming particle dust removal system further includes at least one first vibrator 29, which is fixedly mounted on the dust removal chamber 202 and is used to apply vibration to the dust removal chamber 202.

[0068] In this embodiment, the first vibrator 29 is based on a frequency that is generally recognized in the industry. In order to prevent materials from accumulating and clogging in key parts, the first vibrator 29 is installed in the dust removal chamber 202 to form a vibration anti-clogging system.

[0069] In this embodiment, the operating frequency of the first vibrator 29 is set between 80-120Hz, and the amplitude is controlled between 0.1-0.3mm. The continuous high-frequency micro-amplitude vibration effectively prevents particulate materials from bridging or blocking on the inner surface and in the channel of the dust removal chamber 202.

[0070] For example, the first vibrator 29 is fixedly installed on the outer wall of the dust removal chamber 202 by means of welding, snap-fitting, bolting or riveting.

[0071] like Figure 1 As shown, in one embodiment, the filter rod forming particle dust removal system further includes at least one second vibrator 27, which is fixedly mounted on the spreading trough 22 and is used to apply vibration to the spreading trough 22.

[0072] In this embodiment, the second vibrator 27 is based on the frequency recognized by the industry. In order to prevent material from accumulating and blocking in key parts, the second vibrator 27 is installed in the spreading trough 22 to form a vibration anti-blocking system.

[0073] Continuous high-frequency micro-amplitude vibration effectively prevents bridging or blockage of particulate material on the inner surface and in the channels of the spreading trough 22. In this embodiment, the operating frequency of the second vibrator 27 is set between 80-120Hz, and the amplitude is controlled between 0.1-0.3mm. Continuous high-frequency micro-amplitude vibration effectively prevents bridging or blockage of particulate material on the inner surface and in the channels of the spreading trough 22.

[0074] For example, the second vibrator 27 is fixedly mounted on the cover plate 25 of the spreading trough 22 by means of welding, snap-fitting, bolting or riveting.

[0075] In one embodiment, the system further includes a control component, which includes a main PLC controller. The main PLC controller controls the start and stop of the operation of controlled units such as the auxiliary airflow nozzle 203, the cleaning nozzle 12, and the air jet 23 through solenoid valves.

[0076] The system's control unit uses solenoid valves to achieve intelligent linkage start and stop of each actuator.

[0077] The specific working logic is as follows: When the system equipment starts running, the relevant auxiliary airflow nozzles 203, cleaning nozzles 12, air jets 23, first vibrator 29 and second vibrator 27 are automatically activated; when the equipment stops, these units are automatically shut down to achieve on-demand operation and energy saving.

[0078] In terms of installation, the auxiliary airflow nozzle 203, the cleaning nozzle 12 and the air jet 23 all need to have air passages opened at their corresponding installation positions. The opening size needs to be precisely designed according to the required airflow and the on-site installation space limitations to ensure that each nozzle and spray head 232 can be reliably installed and perform its expected function.

[0079] The installation of the first vibrator 29 and the second vibrator 27 can be performed as described above.

[0080] When the system is working, the equipment start-up signal triggers the solenoid valve group to operate via the PLC controller, simultaneously activating: auxiliary airflow nozzle 203, cleaning nozzle 12, air jet 23, first vibrator 29, and second vibrator 27. After these controlled units are activated, the particles conveyed by the metering roller 10 are separated by the 30°-60° angled airflow of the air jet 23. The particles slide down the spreading groove 22, and the dust is blown towards the dust collection port. When the dust-laden airflow passes through the 40-mesh filter 24, the dust passes through the filter 24 and enters the negative pressure port 201, where the particles are intercepted and fall onto the fiber bundle. The fan-shaped airflow of the auxiliary airflow nozzle 203 covers 85% of the width of the dust collection port, preventing dust from accumulating below the filter 24. The dust in the groove of the metering roller 10 is swept away by the 0.6MPa airflow of the cleaning nozzle 12 and sucked away through the negative pressure port 201 of the dust collector 20. The first vibrator 29 and the second vibrator 27 continuously vibrate the surface of the dust collector at a frequency of 100Hz.

[0081] The working method of this embodiment also includes the system's particle filter rod production method, in which the falling particle stream is directionally dispersed by an air jet 23; the particles and dust are separated by a filter screen 24, the particles fall into the fiber bundle, and the dust below the filter screen 24 is guided into the dust collector 20 by an auxiliary airflow jet nozzle 203; the cleaning nozzle 12 is activated in real time to remove the accumulated material on the roller surface, and the material is blown into the negative pressure port 201 of the dust collector 20 by compressed air and sucked away by negative pressure; when the filter rod weight fluctuation is detected to be > ±0.15g, the newly connected compressed air valve is manually adjusted to increase the pressure and the vibration frequency of the first vibrator 29 and the second vibrator 27, so that the adhering dust is sucked away and the original value is returned.

[0082] When the system malfunctions, if the online detection system reports a filter rod weight fluctuation > ±0.15g: Manually increase the pressure of the compressed air regulating valve to the upper limit (air injector 23, auxiliary airflow nozzle 203), increase the vibration frequency of the first vibrator 29 and the second vibrator 27 to 120Hz and maintain it for 30 seconds, then adjust it back to the original value after stabilization.

[0083] Verification of the technical effects of this implementation system: Continuous testing on the KDF6 unit of a cigarette factory showed that after adopting this device, the particle loss rate decreased from 52% to 4%, the standard deviation of weight improved from 0.14g to 0.05g, the continuous running time of metering roller 10 reached 180 minutes (originally blocked after 10 minutes), and the dust residue decreased from 8.7% to 0.35%.

[0084] It should be noted that, where there is no conflict, the features in the embodiments of this application can be combined with each other.

[0085] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A filter rod forming particle dust removal system, characterized in that, include: Mounting bracket (11), which is used to provide an installation base, and is provided with a material inlet (112) and a material outlet (114). Spreading trough (22), which is installed on the mounting bracket (11) near the material outlet (114), and the spreading trough (22) is provided with a discharge port (222) and a dust removal port with a filter screen (24); Metering roller (10) is rotatably mounted on the mounting bracket (11) near the material inlet (112). The rotation of the metering roller (10) drives the material into the spreading trough (22), and the material is discharged from the discharge port (222) of the spreading trough (22). Dust collector (20), the dust collector (20) is installed on the spreading trough (22) near the dust collection port, and is used to extract the dust discharged from the dust collection port; An air jet (23) is provided in the spreading trough (22) for blowing air onto the material to separate the dust from the material and discharge it to the dust removal port.

2. The filter rod forming particle dust removal system according to claim 1, characterized in that, The air injector (23) includes a plurality of nozzles (232) with the same air jet direction; The multiple nozzles (232) are evenly distributed on two parallel straight lines.

3. The filter rod forming particle dust removal system according to claim 2, characterized in that, An installation frame (234) is fixedly installed on the inner wall of the spreading trough (22). The installation frame (234) is provided with an inclined installation wall (236) and a material blocking wall (238). The inclined installation wall (236) provides an installation base for the nozzle (232). The material blocking wall (238) is connected to the inclined installation wall (236) and is distributed sequentially along the material movement direction.

4. The filter rod forming particle dust removal system according to claim 2, characterized in that, The airflow direction of the nozzle (232) is at an angle relative to the material movement direction, so that the airflow ejected by the nozzle (232) blows the dust contained in the material to the dust removal port.

5. The filter rod forming particle dust removal system according to any one of claims 1 to 4, characterized in that, The dust collector (20) includes a dust collection chamber (202) with a negative pressure port (201). The dust collection chamber (202) is fixedly installed on the spreading trough (22) near the dust collection port. The negative pressure port (201) is used to adsorb the dust discharged from the dust collection port.

6. The filter rod forming particle dust removal system according to claim 5, characterized in that, The dust collector (20) also includes an auxiliary airflow nozzle (203), which is located in the dust collection chamber (202) near the negative pressure port (201). The airflow injected from the auxiliary airflow nozzle (203) forms an auxiliary airflow band at the negative pressure port (201) to promote dust to enter the negative pressure port (201).

7. The filter rod forming particle dust removal system according to claim 6, characterized in that, The auxiliary airflow nozzle (203) is in the shape of a flat fan-shaped nozzle.

8. The filter rod forming particle dust removal system according to claim 1, characterized in that, It also includes a cleaning nozzle (12) disposed in the mounting bracket (11) near the metering roller (10), and the airflow ejected by the cleaning nozzle (12) is used to clean the metering roller (10).

9. The filter rod forming particle dust removal system according to claim 5, characterized in that, It also includes at least one first vibrator (29), which is fixedly mounted on the dust removal chamber (202) and is used to apply vibration to the dust removal chamber (202).

10. The filter rod forming particle dust removal system according to claim 1, characterized in that, It also includes at least one second vibrator (27), which is fixedly mounted on the spreading trough (22) and is used to apply vibration to the spreading trough (22).

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