Ventilation device, dust removal system and production line

Abstract

The ventilation device comprises an air inlet channel, the air inlet channel comprises an air inlet allowing air to enter and an air outlet channel, and the air outlet channel comprises an air outlet allowing air to be sucked out; the air inlet and the air outlet are formed in the same side; the interior of the separation cabin comprises a separation cavity; the air inlet channel is connected to the separation cavity in a gas communication manner and is communicated with the air outlet channel in a gas communication manner, so that wind power passes through the separation cavity from the air inlet channel and flows to the air outlet channel, and negative pressure is generated at the air outlet; air entering through the air inlet spirally rotates in the separation cavity in the circumferential direction. According to the ventilation device, the dust removal system and the packaging production line, the problem that an air net in the production line generating dust is blocked can be solved, the energy efficiency of the air net is guaranteed, the ventilation device is simple in structure, the air speed of cyclone in the ventilation device can be guaranteed, the problem that large-particle dust effectively settles is solved, and the service life of the dust removal system is prolonged. Effects are good and power is high.

Description

Technical Field

[0001] This application relates to ventilation devices, mainly used in the packaging field, especially in packaging production lines containing dust, specifically to a ventilation device, a dust removal system, and a packaging production line. Background Technology

[0002] Dust generated during production has a significant impact on machinery and the factory environment. Therefore, packaging production lines with dust-laden equipment typically have a dust extraction system at the end of the line. This system collects dust from multiple dust outlets on each production line, connects to a main pipe, and then connects to the customer's ventilation network to collect waste and treat the dust generated during production. However, in actual production, it was found that the customer's ventilation network frequently experienced blockages and reduced airflow. Investigation revealed that the dust extraction system at the production terminal was collecting air containing a large amount of large dust particles, preventing it from moving properly within the ventilation network. These large dust particles settled within the network, causing blockages and reducing ventilation efficiency, ultimately leading to decreased dust removal effectiveness on the production line. Therefore, the customer needs to regularly check and clean the ventilation network, addressing any blockages.

[0003] Therefore, how to improve the existing dust removal system, which is often clogged and has reduced air volume, is the problem that this application needs to solve. Utility Model Content

[0004] In view of this, this application proposes a ventilation device, a dust removal system, and a packaging production line, which can solve the problem of air network blockage in dust-generating production lines and ensure the energy efficiency of the air network. The ventilation device of this application has a simple structure, can ensure the wind speed of the cyclone in the ventilation device, solves the problem of effective settling of large dust particles, and has good effect and high power.

[0005] The ventilation device disclosed in this application includes an air inlet channel with an air inlet for allowing air to enter, an air outlet channel with an air outlet for allowing air to be drawn out; the air inlet and the air outlet are located on the same side; and a separation chamber, the separation chamber including a separation cavity; the air inlet channel is gas-connected to the separation cavity and communicates with the air outlet channel, so that airflow from the air inlet channel through the separation cavity and flows to the air outlet channel due to the negative pressure at the air outlet; the air entering through the air inlet rotates circumferentially spirally within the separation cavity.

[0006] Preferably, on the separation chamber, a receiving mechanism is provided on the opposite side to the side where the air inlet and the air outlet are located. The receiving mechanism includes a material receiving tray for receiving materials. The receiving mechanism is downstream of the airflow passing through the air inlet and upstream of the airflow passing through the air outlet.

[0007] Preferably, the axis of the air inlet is spatially staggered with the axis of the separation chamber.

[0008] Preferably, the axes of the plurality of air inlets are arranged around the axis of the separation chamber and are arranged in a spiral array.

[0009] Preferably, the size of the separation chamber gradually decreases from the side of the air inlet to the side where the material receiving tray is located.

[0010] Preferably, the dimensions of the separation chamber, from one side of the air inlet to the side where the material receiving tray is located, remain constant at the front and gradually decrease in size at the rear.

[0011] Preferably, the separation chamber includes a cyclone mechanism and a settling mechanism. The cyclone mechanism includes an upper plate and a cyclone cylinder that is vertically and sealed to the upper plate. The cyclone cylinder is a hollow cylinder with a thin wall. The cavity formed by the cyclone mechanism and the settling mechanism is a separation chamber.

[0012] The material settling mechanism is a hollow cone with openings at the top and bottom. The diameter of the bottom surface of the cone is the same as the diameter of the cyclone, and the diameter of the top surface of the cone is the same as the diameter of the receiving mechanism.

[0013] Preferably, the air outlet is centrally fixed on the upper plate, and the distance from the upper side of the air outlet to the upper plate is equal to the distance from the lower side of the air outlet to the upper plate.

[0014] Preferably, according to another aspect of this application, the application further includes a dust removal system, which includes a dust removal mechanism, a pipeline, an air network, and the ventilation device that are connected in sequence in gas communication.

[0015] Preferably, according to another aspect of this application, the application also includes a packaging production line, which includes production equipment and the dust removal system.

[0016] The beneficial effects of the ventilation device according to this application include at least the following:

[0017] This invention's ventilation device, through the convergence of multiple cyclone inlets, progressively accelerates the airflow that gradually decreases after entering from a single inlet, maintaining high speed within the separation chamber. This high-speed rotation enhances the separation of powder and air, resulting in superior performance and high power. Furthermore, the optimized structure of this ventilation device improves dust removal efficiency, leading to more thorough dust removal.

[0018] This utility model's dust removal system solves the problem of clogged airflow in production lines, ensuring airflow efficiency. It can be used in various dust-generating equipment fields, making it widely applicable. The ventilation device disclosed in this application, integrated into the dust removal system, includes a material recovery function, allowing materials recovered by the dust removal system to be returned to a nearby material silo for reuse, thereby reducing material loss.

[0019] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0020] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application, and the illustrative embodiments and descriptions thereof are used to explain this application. In the drawings:

[0021] Figure 1 This is a three-dimensional schematic diagram of the ventilation device;

[0022] Figure 2 This is the front view of the ventilation system;

[0023] Figure 3 This is a cross-sectional view of the ventilation system;

[0024] Figure 4 A top view of the ventilation system;

[0025] Figure 5 This is a schematic diagram of a packaging production line.

[0026] Figure label:

[0027] 1-Dust removal mechanism; 2-Pipeline; 3-Air network; 4-Production equipment; 5-Ventilation device; 10-Air inlet channel; 11-Air inlet; 20-Air outlet channel; 21-Air outlet; 30-Separation chamber; 31-Separation cavity; 32-Cyclone mechanism; 321-Upper plate; 322-Cyclone tube; 33-Sinking mechanism; 40-Receiving mechanism; 41-Material receiving tray; Detailed Implementation

[0028] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the specific embodiments will be briefly described below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. The technical solutions of this application will be described in detail below with reference to the drawings and embodiments.

[0029] like Figure 1The ventilation device of the specific embodiment shown includes an air inlet channel 10, which includes an air inlet 11 for allowing air to enter, an air outlet channel 20, which includes an air outlet 21 for allowing air to be drawn out; the air inlet 11 and the air outlet 21 are located on the same side; and a separation chamber 30, which includes a separation cavity 31 inside.

[0030] The air inlet channel 10 is connected to the separation chamber 31 in gas communication and is also in gas communication with the air outlet channel 20, so that the airflow from the air inlet channel 10 through the separation chamber 31 and flows to the air outlet channel 20 due to the negative pressure at the air outlet 21; the air entering through the air inlet 11 rotates circumferentially spirally inside the separation chamber 31.

[0031] The ventilation device 5 has an air inlet 11 on its upper plate to draw in dust-laden air. Once inside, the dust-laden air flows within the separation chamber 31. Because dust is denser than air, the air rotates rapidly in a spiral motion within the chamber 31, causing the dust particles to directly impact the inner wall of the separation chamber 30 and rotate along its surface. The air inlet 11, positioned around the circumference of the upper plate, creates a whirlwind-like effect, causing large dust particles to deposit on the wall of the separation chamber 30, forming recyclable material. The separation chamber 31 contains clean, separated air, which exits through the air outlet 21, achieving the dust removal effect.

[0032] like Figure 1 , Figure 2 As shown, on the separation chamber 30, on the opposite side of the side where the air inlet 11 and the air outlet 21 are provided, a receiving mechanism 40 is provided. The receiving mechanism 40 includes a material receiving tray 41 for receiving materials. The receiving mechanism 40 is downstream of the airflow passing through the air inlet 11 and upstream of the airflow passing through the air outlet 21.

[0033] The ventilation device 5 in this specific embodiment is equipped with a receiving mechanism 40, which has a material recovery function. The material recovered by the ventilation device 5 can be returned to the nearest silo for reuse, thereby reducing material loss. Furthermore, it avoids the situation where dust generated at various stages of the production line accumulates in the ventilation network and mixes with previously accumulated particles from various stages to form an unusable mixture. Specifically, in use, the side with the air inlet 11 and air outlet 21 is vertically upward, so that the receiving mechanism 40 is located at the bottom of the entire ventilation device 5. Large dust particles in the cyclone will settle due to gravity and eventually slide down along the cylinder wall of the separation chamber 30 into the material receiving tray 41.

[0034] like Figure 2 , Figure 4As shown, the axis of the air inlet 11 is spatially intersected with the axis of the separation chamber 30. Specifically, the axes of multiple air inlets 11 are arranged around the axis of the separation chamber 30 in a spiral array.

[0035] This specific embodiment employs a multi-intake rotating dust collector to improve dust removal efficiency. When the airflow drawn in through a few inlets 11 rotates within the separation chamber 30, its velocity gradually decreases after impacting the chamber wall and other obstructions. Under the influence of the negative pressure at the outlet 21, before all dust particles have fallen from the airflow, they are re-inhaled into the air network duct due to the negative pressure at the outlet 21, thus failing to achieve complete dust separation. In this specific embodiment, the ventilation device features a spiral array of six evenly distributed inlets 11. The convergence of air from each inlet 11 gradually increases the velocity of the air entering from the previous inlet 11, maintaining high-speed rotation of the cyclone within the separation chamber 30. This high-speed rotation allows the dust-laden cyclone to swirl within the separation chamber 30 for a longer period, resulting in better dust-air separation.

[0036] In order to enable the air drawn into the separation chamber 30 to form a spiral cyclone as quickly as possible, each air inlet 11 is inclined and tilted in the same direction at the same angle. The same direction means that the axis of the air inlet 11 is set to the left or right relative to the axis of the circle perpendicular to the bottom plane of the air inlet 11 and passing through the center of the circle. The same tilt angle means that the angle of the axis of the air inlet 11 relative to the axis of the circle perpendicular to the bottom plane of the air inlet 11 and passing through the center of the circle is the same.

[0037] In another specific embodiment of this application, the size of the separation chamber 30 gradually decreases from one side of the air inlet 11 to the side where the material receiving tray 41 is located. This design makes the entire separation chamber 30 have a conical structure, and the dust deposited on the inner wall of the separation chamber 30 will slide into the material receiving tray 41 at the bottom in a shorter time under the action of gravity.

[0038] In this specific embodiment, such as Figure 1 , Figure 3 As shown, the dimensions of the separation chamber 30, from one side of the air inlet 11 to the side where the material receiving tray 41 is located, are such that the front dimension remains unchanged while the rear dimension gradually decreases.

[0039] Specifically, the separation chamber 30 includes a cyclone mechanism 32 and a settling mechanism 33. The cyclone mechanism 32 includes an upper plate 321 and a cyclone cylinder 322 that is vertically and sealed to the upper plate 321. The cyclone cylinder 322 is a hollow cylinder with a thin wall, and the cavity it forms is a separation chamber 31.

[0040] The material settling mechanism 33 is a hollow cone with openings at the top and bottom. The diameter of the bottom surface of the cone of the material settling mechanism 33 is the same as the diameter of the cyclone 322, and the diameter of the top surface of the cone of the material settling mechanism 33 is the same as the diameter of the receiving mechanism 40.

[0041] The front part, which has a constant size, is the cyclone mechanism 32, and the rear part, which gradually decreases in size, is the material sinking mechanism 33.

[0042] This design is the preferred design. In the hollow cylindrical cyclone mechanism 32, the cyclone easily forms a downward spiral cyclone shape, making it less likely to be sucked out of the cyclone tube. The conical settling mechanism 33 ensures that the deposited material will sink to the bottom receiving mechanism 40 at a faster speed and more thoroughly, and will not remain on the inner wall of the settling mechanism 33.

[0043] In this specific embodiment, the air outlet 21 is centrally fixed on the upper plate 321, and the distance from the upper side of the air outlet 21 to the upper plate 321 is equal to the distance from the lower side of the air outlet 21 to the upper plate 321.

[0044] like Figure 5 As shown, according to another aspect of this application, the dust removal system of a specific embodiment of this application includes a dust discharge mechanism 1, a pipeline 2, an air network 3, and a ventilation device 5 that are connected in sequence in gas communication.

[0045] According to another aspect of this application, a production line according to a specific embodiment of this application includes production equipment 4 and a dust removal system.

[0046] Dust from multiple dust-generating points on production equipment 4 is channeled into ventilation device 5 via pipes 2 and multiple air inlets 11, gradually increasing the air velocity within separation chamber 30 and maintaining high speed for the cyclone. This high-speed rotation separates the dust from the airflow. Large particles remain on the inner walls of the cyclone mechanism 32 and settling mechanism 33, while clean air exits through outlet 22. Particles separated by ventilation device 5 are then connected from material receiving tray 41 to a nearby silo for reuse.

[0047] The ventilation device 5 of this application is installed between the terminal production equipment and the air network of each production line in the factory. It improves dust removal efficiency and achieves more thorough dust removal by using a spiral cyclone with a longer residence time and higher wind speed in the separation chamber 30. This ensures that the air entering the duct before the air network is clean air with dust particles separated, effectively solving the problem of air network blockage, thus maintaining the energy efficiency of the air network and reducing the cost of regular maintenance. The dust removal system of this application, equipped with ventilation device 5, can prevent dust generated at each stage of each production line from accumulating and mixing with previously retained particles to form unusable mixed material. The dust removal system of this application includes a material recovery function, allowing the recovered material to be returned to the silo for reuse, thereby reducing material loss.

[0048] The preferred embodiments of this application have been described in detail above. However, this application is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this application, various simple modifications can be made to the technical solution of this application, and these simple modifications are all within the protection scope of this application. For example, the various welding methods described above can also be implemented by other fixed connection methods, such as adhesive bonding, threaded connection, riveting, etc.

[0049] It should also be noted that the various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this application will not describe the various possible combinations separately.

[0050] Furthermore, various different embodiments of this application can be combined in any way, as long as they do not violate the spirit of this application, they should also be regarded as the content disclosed by this utility model.

Claims

1. Ventilation device, characterized in that The dust removal system comprises an air inlet channel (10) comprising an air inlet (11) for allowing air to enter, an air outlet channel (20) comprising an air outlet (21) for allowing air to be sucked out and generating negative pressure; the air inlet (11) and the air outlet (21) are arranged on the same side; and a separation cabin (30) comprising a separation cavity (31) inside; the air inlet channel (10) is connected in gas communication with the separation cavity (31) and the air outlet channel (20) so that air flows from the air inlet channel (10) through the separation cavity (31) and flows to the air outlet channel (20) due to the negative pressure at the air outlet (21); air entering through the air inlet (11) rotates circumferentially spirally in the separation cavity (31).

2. The venting device of claim 1, wherein, On the opposite side of the separation cabin (30) relative to the side where the air inlet (11) and the air outlet (21) are arranged, a material receiving mechanism (40) is arranged, the material receiving mechanism (40) comprising a material receiving disc (41) for receiving material, the material receiving mechanism (40) being downstream of the airflow passing through the air inlet (11) and upstream of the airflow passing through the air outlet (21).

3. The venting device of claim 2, wherein, The axis of the air inlet (11) is arranged in spatial alternation with the axis of the separation cabin (30).

4. The venting device of claim 3, wherein, The axes of the plurality of air inlets (11) are arranged in a helical line array around the axis of the separation cabin (30).

5. The venting device of claim 4, wherein, The size of the separation cabin (30) gradually decreases from the side of the air inlet (11) to the side where the material receiving disc (41) is arranged.

6. The venting device of claim 4, wherein, The size of the separation cabin (30) gradually decreases from the side of the air inlet (11) to the side where the material receiving disc (41) is arranged.

7. The venting device of claim 6, wherein, The separation cabin (30) comprises a cyclone mechanism (32) and a material settling mechanism (33), the cyclone mechanism (32) comprising an upper plate (321) and a cyclone cylinder (322) arranged in sealing connection with the upper plate (321) perpendicularly, the cyclone cylinder (322) being a hollow cylinder, the cylinder wall of the cyclone cylinder (322) being thin-walled, the cyclone mechanism (32) and the material settling mechanism (33) together forming a separation cavity (31); The material settling mechanism (33) is a hollow conical body with upper and lower openings, the diameter of the conical bottom surface of the material settling mechanism (33) being the same as the diameter of the cyclone cylinder (322), and the diameter of the conical top surface of the material settling mechanism (33) being the same as the diameter of the material receiving mechanism (40).

8. The venting device of claim 7, wherein, The air outlet (21) is centrally fixed on the upper plate (321), and the distance from the upper side of the air outlet (21) to the upper plate (321) is equal to the distance from the lower side of the air outlet (21) to the upper plate (321).

9. Dust extraction system comprising the ventilation device according to any one of claims 1 to 8, characterized in that, The dust removal system comprises an air inlet channel (10) comprising an air inlet (11) for allowing air to enter, an air outlet channel (20) comprising an air outlet (21) for allowing air to be sucked out and generating negative pressure; the air inlet (11) and the air outlet (21) are arranged on the same side; and 10. A production line, characterised in that The dust removal system comprises an air inlet channel (10) comprising an air inlet (11) for allowing air to enter, an air outlet channel (20) comprising an air outlet (21) for allowing air to be sucked out and generating negative pressure; the air inlet (11) and the air outlet (21) are arranged on the same side; and

Images