Tobacco dust removal hopper cloth bag blowing device

Abstract

The application discloses a tobacco dust removal hopper cloth bag blowing device and relates to the technical field of tobacco dust removal. The device comprises a compressed air, a gas storage tank, a plurality of compressed air branch pipes, a nozzle and a mounting end cover. The gas storage tank is connected to one side of the compressed air, and the other side is connected in parallel with the plurality of compressed air branch pipes. One end of the compressed air branch pipe away from the gas storage tank penetrates the mounting end cover and extends into the dust removal hopper. The nozzle is installed at the end of the compressed air branch pipe away from the gas storage tank and above the cloth bag. The nozzle corresponds to the cloth bag one by one, and the axes of the nozzle and the cloth bag coincide. The application controls the plurality of nozzles to be opened alternately at interval time, releases compressed air at an instant, makes the compressed air blow into the cloth bag of the dust removal hopper reversely, makes the cloth bag expand at an instant, and makes the cloth bag produce impact vibration under the action of the compressed air. The dust on the surface of the cloth bag is cleaned and shaken off by relying on the expansion and vibration of the cloth bag. The purpose of cleaning the cloth bag is achieved, and the health and safety hidden trouble problems caused by the contact of workers with the dust environment are avoided.

Description

Technical Field

[0001] This application relates to the field of tobacco dust removal technology, specifically a tobacco dust removal hopper bag blowing device. Background Technology

[0002] Tobacco dust collectors are dust collection and purification devices specifically designed for the tobacco processing industry. They are mainly used to remove tobacco dust (such as tobacco leaf debris, tobacco dust, fiber dust, etc.) generated during the tobacco production process, so as to achieve workshop environment purification, raw material recycling, and environmental compliance.

[0003] After a period of operation, a large amount of dust will accumulate in the filter bags of a tobacco dust collector, leading to increased resistance in the equipment, a smaller air inlet, reduced airflow, and even blockage of the air inlet. Simultaneously, dust accumulation can also increase the resistance of the filter bags, causing blockages or even damage.

[0004] To avoid the aforementioned problems, operators need to clean the dust from the filter bags in the tobacco dust collector hopper. Traditionally, this is done by manually tapping the bags to remove accumulated dust. However, this manual tapping method requires operators to be in direct contact with the dusty environment, which can easily lead to health and safety hazards. Utility Model Content

[0005] The main purpose of this application is to provide a tobacco dust collector bag blowing device, which aims to solve the technical problem that manual dust removal requires operators to directly contact the dusty environment, which can easily lead to health and safety hazards.

[0006] To achieve the above objectives, this application provides the following technical solution:

[0007] A tobacco dust collector bag cleaning device includes a dust collector hopper, a filter bag, and a dust collection port. The dust collector hopper has an installation end cap at its upper end. The device also includes:

[0008] Compressed air, one end of which is connected to a compressed air source;

[0009] The gas storage tank is connected to the compressed air supply on one side and has several compressed air branch pipes connected in parallel on the other side. The end of the compressed air branch pipe away from the gas storage tank passes through the mounting end cover and extends into the dust removal hopper.

[0010] The nozzle is installed at the end of the compressed air branch pipe away from the gas storage tank and above the filter bag. The nozzle and the filter bag correspond one-to-one and their axes coincide.

[0011] Optionally, the mounting end cap and the dust collection hopper are integrally formed, each of the compressed air branch pipes is equipped with a solenoid valve, and several of the solenoid valves are integrated into the housing, and a manual valve is installed on the compressed air pipeline.

[0012] Optionally, the mounting end cover and the dust collector hopper are assembled separately and connected by a snap-fit ​​mechanism at the connection point between the two. The snap-fit ​​mechanism includes an embedding component on the mounting end cover and a limiting component on the dust collector hopper.

[0013] The embedding component and the limiting component are in one-to-one correspondence, so that when the mounting end cover and the dust collection hopper are closed, the embedding component is embedded in the limiting component.

[0014] Optionally, the embedded component includes a connecting plate, the bottom of which is hinged to a movable plate via a pivot, and a torsion spring is provided between the movable plate and the connecting plate.

[0015] Optionally, the limiting component includes a slot, with an insertion port at one end of the slot near the mounting end cover allowing the embedding component to pass through, and a limiting hole matching the movable plate at the side of the slot away from the dust collector hopper, and a limiting baffle at the end of the limiting hole near the mounting end cover.

[0016] Optionally, the connecting plate is provided with an arc-shaped protective cover, one end of which extends to the outside of the limiting hole and covers a portion of the limiting hole.

[0017] Optionally, the portion a of the compressed air branch pipe located between the mounting end cap and the housing is a corrugated metal hose.

[0018] Optionally, a sealing ring is embedded in the joint between the mounting end cap and the dust collection hopper.

[0019] The technical solution provided in this application may include the following beneficial effects:

[0020] This application controls several nozzles to open alternately at intervals, releasing compressed air instantaneously. The compressed air is then blown back into the filter bag of the dust collector hopper, causing the filter bag to expand instantaneously. Under the action of the compressed air, the filter bag is impacted and vibrated. The expansion and vibration of the filter bag cleans and shakes off the dust on its surface, thereby achieving the purpose of cleaning the filter bag and avoiding health and safety hazards caused by workers coming into contact with dusty environments. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a three-dimensional structural diagram of the tobacco dust collector bag blowing device;

[0023] Figure 2 This is a cross-sectional view of the tobacco dust collector bag filter blowing device;

[0024] Figure 3 This is a structural diagram of the latching mechanism;

[0025] Figure 4 This is a structural diagram of the embedded component;

[0026] Figure 5 This is a schematic diagram of the limit component;

[0027] Figure 6 This is a schematic diagram of the arc-shaped protective cover.

[0028] Figure label:

[0029] 1. Dust hopper; 2. Filter bag; 3. Ash discharge port; 4. Mounting end cover; 5. Compressed air; 6. Air storage tank; 7. Compressed air branch pipe; 8. Nozzle; 9. Solenoid valve; 10. Housing; 11. Manual valve; 12. Buckling mechanism; 13. Connecting plate; 14. Movable plate; 15. Rotating shaft; 16. Torsion spring; 17. Slot; 18. Insertion port; 19. Limiting hole; 20. Limiting baffle; 21. Arc-shaped protective cover. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the described embodiments are merely some, not all, of the embodiments of this application. Unless otherwise specified, the embodiments and features described in this application can be combined with each other. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0031] Example 1:

[0032] See Figure 1 and Figure 2 A tobacco dust collector bag cleaning device includes a dust collector 1, a filter bag 2, and a dust collection port 3. The dust collector 1 has an installation end cap 4 at its upper end. The device also includes:

[0033] Compressed air 5, one end of which is connected to a compressed air source;

[0034] The air storage tank 6 is connected to the compressed air 5 on one side and several compressed air branch pipes 7 are connected in parallel on the other side. The end of the compressed air branch pipe 7 away from the air storage tank 6 passes through the mounting end cover 4 and extends into the dust removal hopper 1.

[0035] Nozzle 8 is installed at the end of the compressed air branch pipe 7 away from the gas storage tank 6 and above the cloth bag 2. Nozzle 8 corresponds to cloth bag 2 one-to-one and their axes coincide.

[0036] Specifically, the filter bag 2 is a cylindrical structure and is installed inside the dust collector hopper 1. The bottom of the dust collector hopper 1 has a dust discharge port 3, and the dust collector hopper 1 is a dust temporary storage device. The dust discharge port 3 is the dust outlet in the dust collector hopper 1. The compressed air 5 provides compressed air source for the entire device. The air storage tank 6 has a compressed air 5 inlet for connecting to the compressed air 5. The air storage tank 6 is a compressed air storage device to ensure stable output of the compressed air 5. The upper end of the dust collector hopper 1 is provided with an installation end cover 4. The end of the compressed air branch pipe 7 away from the air storage tank 6 extends through the side wall of the installation end cover 4 and into the dust collector hopper 1 so that compressed air is input into the dust collector hopper 1 through several compressed air branch pipes 7. Each compressed air branch pipe 7 has several nozzles 8 at its bottom.

[0037] In traditional techniques, dust accumulation on the filter bags 2 is typically cleaned by manually tapping them. However, this manual tapping method requires workers to be in direct contact with the dusty environment, which can easily lead to health and safety hazards. In this application, several nozzles 8 are controlled to open alternately at intervals, releasing compressed air instantaneously. This compressed air is then blown back into the filter bags 2 in the dust collector hopper 1, causing the filter bags 2 to expand instantaneously. Under the action of the compressed air, the filter bags 2 are impacted and vibrated. The expansion and vibration of the filter bags 2 clean and shake off the dust from their surface, thereby achieving the purpose of cleaning the filter bags 2 and avoiding health and safety hazards caused by workers' contact with the dusty environment.

[0038] In this application, the nozzle 8 is aligned with the axis of the bag 2, so that compressed air can be sprayed vertically downward along the central axis of the bag 2. The impact force of the compressed air released instantaneously is transmitted along the axis of the bag 2, causing the bag 2 to expand and vibrate uniformly as a whole (rather than being subjected to localized force). This can simultaneously shake off the dust accumulated on the inner and outer surfaces of the bag 2. This uniform vibration can avoid the problems of excessive local impact leading to dust compaction or insufficient local force leading to residue in traditional blowing.

[0039] It should be noted that other components of the dust collector hopper 1 (such as the air inlet and air outlet) are not related to the technical problem to be solved in this application, and will not be described in detail here.

[0040] Example 2:

[0041] See Figure 1 and Figure 2 Based on Embodiment 1, optionally, the mounting end cover 4 and the dust hopper 1 are integrally formed, each of the compressed air branch pipes 7 is provided with a solenoid valve 9, and several of the solenoid valves 9 are integrated in the housing 10, and a manual valve 11 is installed on the compressed air 5 pipeline.

[0042] Specifically, the mounting end cap 4 and the dust collection hopper 1 are integrally formed, ensuring the airtightness of the device and blocking the path of dust leakage from the connection seam. The solenoid valve 9 is electrically connected to the PLC system and is used to control the on / off of compressed air 5 in the compressed air branch pipe 7, thereby controlling several nozzles 8 to open alternately at intervals; the manual valve 11 is used to control the on / off of the main compressed air pipeline. The solenoid valve 9 is a key component controlling compressed air injection; its valve core, coil, and other precision structures are prone to jamming and short circuits due to the intrusion of tobacco dust (fine particles). Integrating it into the housing 10 isolates it from external dust, moisture, and mechanical impacts, preventing malfunctions or failures caused by environmental interference, and ensuring the long-term stable operation of the solenoid valve 9 in dusty tobacco workshops. After integrating multiple solenoid valves 9, their power supply lines and control signal lines can be centrally arranged within the housing 10, reducing the clutter of exposed wiring (avoiding insulation aging caused by dust adhering to the wiring).

[0043] Example 3:

[0044] See Figure 3 Based on the above embodiments, optionally, the mounting end cover 4 and the dust hopper 1 are assembled separately and connected by a snap-fit ​​mechanism 12 provided at the connection between the two. The snap-fit ​​mechanism 12 includes an embedding component provided on the mounting end cover 4 and a limiting component provided on the dust hopper 1.

[0045] The embedding component and the limiting component are in one-to-one correspondence, so that when the mounting end cover 4 and the dust collection hopper 1 are closed, the embedding component is embedded in the limiting component.

[0046] Specifically, two snap-fit ​​mechanisms 12 are symmetrically arranged on both sides along the width of the device, located at the connection between the mounting end cover 4 and the dust collector hopper 1. The embedded components and limiting components correspond one-to-one, ensuring that when the mounting end cover 4 and the dust collector hopper 1 are assembled and closed, they are guided to precisely align along a preset trajectory, preventing sealing failure due to misalignment and ensuring consistent relative positions of core components (such as the nozzle 8 and the filter bag 2 axis) after each assembly, thus guaranteeing stable dust removal performance. The limiting components have a limiting function, preventing the embedded components from coming loose and ensuring a stable connection between the mounting end cover 4 and the dust collector hopper 1.

[0047] Considering that the nozzle 8 is used at high frequency and requires frequent maintenance or replacement, in this embodiment, a split assembly is adopted instead of the integrated structure in embodiment two, which facilitates the quick separation of the end cover 4 and the dust collection hopper 1, thereby facilitating the maintenance and replacement of the nozzle 8 and the filter bag 2.

[0048] See Figure 4 and Figure 5Optionally, the embedding component includes a connecting plate 13, with a movable plate 14 hinged to the bottom of the connecting plate 13 via a pivot 15. A torsion spring 16 is provided between the movable plate 14 and the connecting plate 13. The limiting component includes a slot 17, with an insertion port 18 allowing the embedding component to pass through at one end of the slot 17 near the mounting end cover 4. A limiting hole 19 matching the movable plate 14 is provided on the side of the slot 17 away from the dust collector hopper 1. A limiting baffle 20 is provided at the end of the limiting hole 19 near the mounting end cover 4.

[0049] Specifically, the connecting plate 13 is fixed to the outside of the mounting end cover 4. A movable plate 14 is hinged to the bottom of the connecting plate 13 via a pivot 15, allowing the movable plate 14 to rotate relative to the connecting plate 13. A torsion spring 16 is provided between the movable plate 14 and the connecting plate 13, with one end of the torsion spring 16 connected to the connecting plate 13 and the other end connected to the movable plate 14. When the embedded component is inserted into the slot 17 through the insertion port 18, the movable plate 14 is squeezed by the inner side of the limiting baffle 20, reducing the angle between it and the connecting plate 13, allowing the entire embedded component to enter the slot 17. After the embedded component is fully embedded in the slot 17, the movable plate 14 is pushed back to its original position by the elastic force of the torsion spring 16. At this time, the movable plate 14 is engaged in the limiting hole 19, and the bottom of the limiting baffle 20 and the top of the movable plate 14 form an abutment. The embedded component is fixed in the slot 17, thereby achieving the snap-fit ​​fixation of the mounting end cover 4 and the dust collector hopper 1. When installing and disassembling the end cover 4 and the dust hopper 1, simply press the movable plate 14 to release the restriction of the slot 17 on the embedded component.

[0050] See Figure 6 Optionally, the connecting plate 13 is provided with an arc-shaped protective cover 21, one end of which extends to the outside of the limiting hole 19 and covers part of the limiting hole 19.

[0051] Specifically, the arc-shaped protective cover 21 shields part of the limiting hole 19 and the movable plate 14 to prevent the movable plate 14 from being pressed in case of an accident, which would cause the slot 17 to be accidentally released from the restriction of the embedded component, thereby ensuring that the mounting end cover 4 and the dust collection hopper 1 are locked in a stable and continuous state.

[0052] Optionally, the portion a of the compressed air branch pipe 7 located between the mounting end cover 4 and the housing 10 is made of corrugated metal hose.

[0053] Specifically, the corrugated metal hose is flexible, which avoids interference with the closing and opening of the mounting end cap 4 and the dust collector hopper 1. When the mounting end cap 4 separates from the dust collector hopper 1, the end cap will move away from the dust collector hopper 1, causing the end of the compressed air branch pipe 7 to move synchronously. At this time, the corrugated metal hose can naturally extend with the movement of the end cap. When the end cap closes with the hopper, the end cap will return to its original position closer to the dust collector hopper 1, and the corrugated metal hose will retract to its original length.

[0054] Optionally, a sealing ring is embedded in the joint between the mounting end cover 4 and the dust collection hopper 1.

[0055] Specifically, the sealing ring fills the gap between the mounting end cover 4 and the dust collection hopper 1 through its own elastic deformation, thereby achieving a sealed isolation at the connection point between the two, preventing dust leakage, and ensuring the airtightness of the device.

[0056] The above description is merely a preferred embodiment of this application and is not intended to limit this application. 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 tobacco dust collector bag filter blowing device, comprising a dust collector hopper, a filter bag, and a dust collection port, wherein the upper end of the dust collector hopper is provided with an installation end cap, characterized in that, Also includes: Compressed air, one end of which is connected to a compressed air source; The gas storage tank is connected to the compressed air supply on one side and has several compressed air branch pipes connected in parallel on the other side. The end of the compressed air branch pipe away from the gas storage tank passes through the mounting end cover and extends into the dust removal hopper. The nozzle is installed at the end of the compressed air branch pipe away from the gas storage tank and above the filter bag. The nozzle and the filter bag correspond one-to-one and their axes coincide.

2. The tobacco dust collector bag filter blowing device according to claim 1, characterized in that, The installation end cover and dust collection hopper are integrally formed. Each compressed air branch pipe is equipped with a solenoid valve, and several solenoid valves are integrated into the housing. A manual valve is installed on the compressed air branch pipe.

3. The tobacco dust collector bag filter blowing device according to claim 2, characterized in that, The mounting end cover and the dust collector hopper are assembled separately and connected by a snap-fit ​​mechanism at the connection point between the two. The snap-fit ​​mechanism includes an embedding component on the mounting end cover and a limiting component on the dust collector hopper. The embedding component and the limiting component are in one-to-one correspondence, so that when the mounting end cover and the dust collection hopper are closed, the embedding component is embedded in the limiting component.

4. The tobacco dust collector bag filter blowing device according to claim 3, characterized in that, The embedded component includes a connecting plate, and a movable plate is hinged to the bottom of the connecting plate via a pivot. A torsion spring is provided between the movable plate and the connecting plate.

5. The tobacco dust collector bag filter blowing device according to claim 4, characterized in that, The limiting component includes a slot, with an insertion port at one end of the slot near the mounting end cover that allows the embedded component to pass through, and a limiting hole matching the movable plate at the side of the slot away from the dust collector hopper, with a limiting baffle at the end of the limiting hole near the mounting end cover.

6. The tobacco dust collector bag filter blowing device according to claim 5, characterized in that, The connecting plate is provided with an arc-shaped protective cover, one end of which extends to the outside of the limiting hole and covers part of the limiting hole area.

7. The tobacco dust collector bag filter blowing device according to claim 6, characterized in that, The portion a of the compressed air branch pipe located between the mounting end cap and the housing is made of corrugated metal hose.

8. The tobacco dust collector bag filter blowing device according to claim 7, characterized in that, A sealing ring is embedded in the joint between the mounting end cover and the dust collection hopper.

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