Light material recovery separation system

Abstract

This invention discloses a lightweight material recycling and separation system, comprising a rectifier, a vortex separator, a dust collector, and a negative pressure device. The rectifier has a rectifier chamber with a first discharge port and a first inlet port. The vortex separator has a separation chamber, a second inlet port, a second discharge port, and a third discharge port. The second inlet port and the second discharge port are both located on the side of the vortex separator, and the third discharge port is located at the bottom of the vortex separator. The second inlet port is connected to the first discharge port, and the second discharge port is connected to the dust collector. The separation chamber has an inlet channel and an outlet channel. The inlet channel includes a transverse flow section, a guide section, and a vertical flow section connected in sequence. The second inlet port is located at the input end of the transverse flow section. The guide section has an arc-shaped upper wall. The output end of the vertical flow section connects downward to the separation chamber. The side wall of the outlet channel has a through hole to connect to the separation chamber, and the second discharge port is located at the output end of the outlet channel. This invention can realize automated waste recycling, separating paper-like waste from dust particles.

Description

Technical Field

[0001] This invention relates to the field of material recycling system technology, and in particular to a lightweight material recycling and separation system. Background Technology

[0002] Laser die-cutting machines are increasingly widely used due to the following advantages: laser die-cutting is computer-controlled, and is not limited by the complexity of the graphic, enabling it to cut requirements that traditional die-cutting methods cannot meet; it eliminates the need to change die plates, allowing for rapid switching between different job formats, saving the time required for die changes and adjustments in traditional die-cutting, making it particularly suitable for short-run, customized die-cutting processes; and it allows for computer-based graphic design, with various graphic parameters automatically generated by software. Compared to traditional cutting processes, which primarily produce blocky and powdery waste, laser die-cutting machines produce waste of varying shapes depending on the product being processed, which can easily cause problems for downstream waste disposal.

[0003] Currently, most factories handle waste generated by laser die-cutting machines by placing a bag over the output end of the machine, allowing the waste to fall under its own weight and be collected. Once the bag has collected a certain weight of waste, it is manually replaced with a new bag, and the old bag is transferred to a waste recycling area. This method has significant drawbacks: the more laser die-cutting machines in a factory, the greater the labor intensity and the lower the waste disposal efficiency; waste disposal personnel are prone to interfering with equipment operators, affecting operation.

[0004] The applicant considered using a dust collector and negative pressure equipment to process the waste generated by the laser die-cutting machine. The negative pressure equipment creates negative pressure to drive airflow, and the flowing air carries the waste through pipes to the dust collector. However, in the actual research and development process, the paper-like waste generated by the laser die-cutting machine is lightweight and has a large area, which easily clogs the filter structure of the dust collector. This leads to unstable air pressure in the entire recycling system and large fluctuations in waste processing efficiency. Therefore, it is urgent to address the issue of separating the paper-like waste from the dust particles before recycling. Summary of the Invention

[0005] The purpose of this invention is to provide a lightweight material recycling and separation system that can achieve automated waste recycling and separate paper-like waste from dust particles during the recycling process. This prevents the paper-like waste from clogging the dust collector's filter and affecting the air pressure stability of the entire system, ensuring that the entire system can operate continuously and stably.

[0006] To achieve the above objectives, the solution of the present invention is:

[0007] A lightweight material recycling and separation system includes at least one rectifier, a vortex separator, a dust collector, and a negative pressure device. The rectifier has a rectifier chamber with a first discharge port and several first inlets. The vortex separator has a separation chamber, a second inlet, a second discharge port, and a third discharge port. The second inlet and second discharge port are both located on the side of the vortex separator, and the third discharge port is located at the bottom of the vortex separator. The second inlet communicates with the first discharge port. The second discharge port is connected to the input end of the dust collector; the separation chamber is provided with a feeding channel and a discharge channel; the feeding channel includes a crossflow section, a guide section and a vertical flow section connected in sequence; the second feeding port is located at the input end of the crossflow section; the guide section has an arc-shaped upper wall; the output end of the vertical flow section is downward and connected to the separation chamber; the side wall of the discharge channel is provided with a through hole to connect to the separation chamber, and the second discharge port is located at the output end of the discharge channel; the output end of the dust collector is connected to the negative pressure device.

[0008] The lightweight material recycling and separation system further includes an air replenishment and noise reduction component installed on the rectifier; the air replenishment and noise reduction component includes an air replenishment pipe, an air inlet pipe, a silencer, and sound-absorbing cotton; the output end of the air replenishment pipe is connected to the rectifier cavity; the air inlet pipe is connected to the input end of the air replenishment pipe and is provided with an air inlet, and the diameter of the air inlet is larger than the diameter of the air replenishment pipe; the silencer is installed at the connection between the air inlet pipe and the air replenishment pipe; the sound-absorbing cotton is attached to the inner wall of the air inlet pipe.

[0009] Preferably, the air replenishment and noise reduction assembly further includes an automatic air replenishment mechanism; the automatic air replenishment mechanism includes a pressure sensor disposed in the rectifier cavity and an electric butterfly valve disposed in the air replenishment pipeline; the pressure sensor is electrically connected to the electric butterfly valve.

[0010] Preferably, the automatic air replenishment mechanism further includes a manual butterfly valve disposed in the air replenishment pipeline.

[0011] Preferably, the air supply pipe includes two flanged pipes; one flanged pipe is sealed at both ends to the rectifier body and the output end of the manual butterfly valve, and the other flanged pipe is sealed at both ends to the input end of the manual butterfly valve and the output end of the electric butterfly valve; the output end of the air intake pipe is sealed to the input end of the electric butterfly valve.

[0012] A baffle is provided inside the separation chamber. The baffle includes a horizontal plate and an arc-shaped plate connected together. The horizontal plate is disposed on the upper side of the arc-shaped plate along the tangent of the arc-shaped plate. The feeding channel is formed between the upper surface of the horizontal plate, the outer peripheral surface of the arc-shaped plate and the inner wall of the separation chamber. The through hole is formed between the lower surface of the horizontal plate and the end of the arc-shaped plate. The discharge channel is formed on the inner peripheral surface of the arc-shaped plate.

[0013] Preferably, the baffle further includes a vertical plate connected to the arc-shaped plate, the vertical plate being disposed along the side of the arc-shaped plate tangentially, and the vertical plate forming the vertical flow section between the vertical plate and the inner wall of the separation cavity.

[0014] Preferably, the arc length of the cross-section of the arc plate is a large arc, and its central angle is 270°.

[0015] The separation chamber has an inclined wall that is positioned opposite to the output end of the vertical flow section, and the lower end of the inclined wall extends to the third discharge port.

[0016] Preferably, the vortex separator is provided with reinforcing ribs on the outer surface of the inclined wall.

[0017] The negative pressure device is a silencer fan.

[0018] The third discharge port is connected to the chip briquetting device.

[0019] The lightweight material recycling and separation system further includes a multi-port connector installed at the first discharge port. The rectifier is first connected to the multi-port connector, and then connected to the vortex separator through the multi-port connector.

[0020] The lightweight material recycling and separation system also includes a crusher installed at the front end of the first feed inlet.

[0021] By adopting the above technical solution, the present invention has the following technical effects:

[0022] ①A negative pressure recovery system is formed by a rectifier, a vortex separator, a dust collector and a negative pressure device connected in sequence. This system can continuously extract waste from the laser die-cutting machine and achieve automated waste recycling.

[0023] ② By designing a feeding channel in the separation chamber, the flow of dust-laden airflow is guided, so that when the airflow passes through the arc-shaped upper wall, the paper-like waste can flow along the wall under the action of inertial centrifugal force, and then flow downward along the vertical section. After entering the separation chamber, due to the decrease in airflow velocity, the paper-like waste and trace amounts of larger dust particles are separated from the airflow and settle. In particular, the paper-like waste will not flow to the dust collector at the rear end, avoiding system blockage and ensuring the air pressure stability of the entire negative pressure recovery system, ensuring that the entire system can operate continuously and stably.

[0024] ③ By connecting multiple laser die-cutting machines to the system through a rectifier, the waste processing capacity of the system is greatly improved. One negative pressure recovery system can correspond to multiple laser die-cutting machines, thereby improving efficiency and reducing costs. Attached Figure Description

[0025] Figure 1 This is a perspective view of a specific embodiment of the present invention;

[0026] Figure 2 This is a front view of a specific embodiment of the present invention;

[0027] Figure 3 This is a top view of a specific embodiment of the present invention;

[0028] Figure 4 A three-dimensional representation of the vortex separator in a specific embodiment of the present invention. Figure 1 ;

[0029] Figure 5 A three-dimensional representation of the vortex separator in a specific embodiment of the present invention. Figure 2 ;

[0030] Figure 6 This is a front view of a vortex separator according to a specific embodiment of the present invention;

[0031] Figure 7 This is a cross-sectional view of a vortex separator according to a specific embodiment of the present invention;

[0032] Figure 8 This is a schematic diagram illustrating the working principle of a vortex separator according to a specific embodiment of the present invention.

[0033] Figure 9 This is a diagram showing the average wind speed distribution during operation of a vortex separator according to a specific embodiment of the present invention.

[0034] Figure 10 This is a perspective view of a rectifier according to a specific embodiment of the present invention;

[0035] Figure 11 This is an exploded view of a rectifier according to a specific embodiment of the present invention;

[0036] Figure 12 This is a cross-sectional view of a rectifier according to a specific embodiment of the present invention;

[0037] Explanation of icon numbers:

[0038] 10---Rectifier; 11---Rectifier chamber; 12---First discharge port;

[0039] 13---First feed inlet; 14---Flange interface; 20---Vortex separator;

[0040] 21---Separation chamber; 22---Second feed inlet; 23---Second discharge outlet;

[0041] 24---Third discharge port; 25---Feed channel; 251--Crossflow section;

[0042] 252--Guide section; 521--Arc-shaped upper wall; 253--Vertical flow section;

[0043] 26---Discharge channel; 261--Through hole; 27---Baffle;

[0044] 271--Horizontal panel; 272--Curved panel; 273--Vertical panel;

[0045] 28---Sloping wall; 29---Reinforcing rib; 30---Dust collector;

[0046] 40---Negative pressure equipment; 50---Air replenishment and noise reduction components; 51---Air replenishment pipeline;

[0047] 52---Intake pipe; 521--Intake port; 522--Converging section;

[0048] 53---Silencer; 54---Sound-absorbing cotton; 55---Barometric pressure sensor;

[0049] 56---Electric butterfly valve; 57---Manual butterfly valve; 60---Pipeline;

[0050] 70---Pipeline; 80---Pipeline; 90---Support structure;

[0051] 100 -- Multi-port connector. Detailed Implementation

[0052] To further explain the technical solution of the present invention, the present invention will be described in detail below through specific embodiments.

[0053] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0054] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of protection of the invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0055] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0056] In the description of the embodiments of the present invention, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use, or the orientation or positional relationship in which those skilled in the art are usually understood. It is only for the purpose of simplifying the description of the embodiments of the present invention, and is not intended to 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, it should not be construed as a limitation of the present invention.

[0057] Furthermore, the terms "first," "second," and "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0058] In the description of the embodiments of the present invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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 mechanical connection, an electrical connection, or a connection that allows for mutual communication; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention based on the specific circumstances.

[0059] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0060] The following disclosure provides many different embodiments or examples for implementing different structures of the invention. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0061] Furthermore, this invention provides examples of various specific processes and materials, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0062] refer to Figures 1 to 12 As shown, the present invention discloses a lightweight material recycling and separation system, including at least one rectifier 10, a vortex separator 20, a dust collector 30, and a negative pressure device 40;

[0063] The rectifier 10 is provided with a rectifier cavity 11, which has a first discharge port 12 and a plurality of first inlets 13; the first inlets 13 are used to connect to the processing station of the laser die-cutting machine.

[0064] The vortex separator 20 is provided with a separation chamber 21, a second inlet 22, a second outlet 23, and a third outlet 24. The second inlet 22 and the second outlet 23 are both located on the side of the vortex separator 20, and the third outlet 24 is located at the bottom of the vortex separator 20. The second inlet 22 is connected to the first outlet 12, the second outlet 23 is connected to the input end of the dust collector 30, and the third outlet 24 is used to connect to a paper-like waste recycling device. The separation chamber 21... The device is equipped with a feeding channel 25 and a discharging channel 26. The feeding channel 25 includes a crossflow section 251, a guide section 252, and a vertical flow section 253 connected in sequence. A second feeding port 22 is provided at the input end of the crossflow section 251. The guide section 252 has an arc-shaped upper wall 2521. The output end of the vertical flow section 253 is downward and connected to the separation chamber 21. The side wall of the discharging channel 26 is provided with a through hole 261 to connect to the separation chamber 21. A second discharging port 23 is provided at the output end of the discharging channel 26.

[0065] The output end of the dust collector 30 is connected to the negative pressure device 40.

[0066] refer to Figures 4 to 6 The diagram illustrates a specific implementation of the rectifier section:

[0067] The present invention also includes an air supply and noise reduction component 50 disposed on the rectifier 10; the air supply and noise reduction component 50 includes an air supply pipe 51, an air intake pipe 52, a silencer 53, and sound-absorbing cotton 54; the output end of the air supply pipe 51 is connected to the rectifier cavity 11; the air intake pipe 52 is connected to the input end of the air supply pipe 51 and is provided with an air inlet 521, and the diameter of the air inlet 521 is larger than the diameter of the air supply pipe 51; the silencer 53 is disposed at the connection between the air intake pipe 52 and the air supply pipe 51; the sound-absorbing cotton 54 is attached to the inner wall of the air intake pipe 52. The air replenishment and noise reduction component 50 has an additional air intake pipe 52 at the input end of the air replenishment pipe 51. The air intake pipe 52 has an air inlet 521 with a diameter larger than that of the air replenishment pipe 51. Under the same negative pressure conditions, because the air inlet 521 has a larger cross-sectional area than the air replenishment pipe 51, the airflow to the air intake pipe 52 has a lower flow velocity. At the same time, in conjunction with the sound-absorbing cotton 54 attached to the inner wall of the air intake pipe 52 and the silencer 53 at the connection between the air intake pipe 52 and the air replenishment pipe 51, the noise generated by the rectifier during air replenishment can be greatly reduced, thereby optimizing the factory environment.

[0068] In some embodiments of the above-mentioned air replenishment and noise reduction component 50, the air replenishment and noise reduction component 50 further includes an automatic air replenishment mechanism; the automatic air replenishment mechanism includes a pressure sensor 55 disposed in the rectifier cavity 11 and an electric butterfly valve 56 disposed in the air replenishment pipeline 51; the pressure sensor 55 is electrically connected to the electric butterfly valve 56: when the pressure sensor 55 detects that the air pressure value in the rectifier cavity 11 is lower than a preset range, it sends an "open signal" to the electric butterfly valve 56, causing the electric butterfly valve 56 to open the valve to replenish air; when the pressure sensor 55 detects that the air pressure value in the rectifier cavity 11 returns to the preset range, it sends a "close signal" to the electric butterfly valve 56, causing the electric butterfly valve 56 to close the valve to stop replenishing air.

[0069] Furthermore, the aforementioned automatic air replenishment mechanism also includes a manual butterfly valve 57 installed in the air replenishment pipeline 51. The manual butterfly valve 57 can be used to manually adjust its valve size to regulate the air intake flow rate during air replenishment by adjusting the air intake cross-sectional area.

[0070] Secondly, the aforementioned air replenishment pipe 51 includes two flange pipes; one flange pipe is sealed at both ends for connection to the output ends of the rectifier 10 and the manual butterfly valve 57, and the other flange pipe is sealed at both ends for connection to the input end of the manual butterfly valve 57 and the output end of the electric butterfly valve 56; the output end of the air intake pipe 52 is sealed for connection to the input end of the electric butterfly valve 56, so the input end of the air intake pipe 52 is the aforementioned air inlet 521, and a tapering section 522 is provided on the air intake pipe 52 between the air inlet 521 and the input end of the electric butterfly valve 56, so that the larger diameter air inlet smoothly transitions to the output end of the air intake pipe 52, and the output end of the air intake pipe 52 has the same diameter as the air replenishment pipe 51 (i.e., the aforementioned flange pipe).

[0071] In some embodiments of the above-mentioned air replenishment and noise reduction component 50, the side of the rectifier 10 is provided with a flange interface 14 for air replenishment pipeline 51 to be sealed and connected.

[0072] refer to Figures 7 to 12 The diagram illustrates a specific implementation of the vortex separator section:

[0073] A baffle 27 is provided inside the separation chamber 21. The baffle 27 includes a horizontal plate 271 and an arc-shaped plate 272 connected to each other. The horizontal plate 271 is arranged on the upper side of the arc-shaped plate 272 along the tangent of the arc-shaped plate 272. The feed channel 25 is formed between the upper surface of the horizontal plate 271, the outer peripheral surface of the arc-shaped plate 272 and the inner wall of the separation chamber 21. The through hole 261 is formed between the lower surface of the horizontal plate 271 and the end of the arc-shaped plate 272. The discharge channel 26 is formed on the inner peripheral surface of the arc-shaped plate 272. By setting baffles 27 in the separation chamber 21, special feeding channels 25 and discharging channels 26 are formed in the separation chamber 21. The through holes 261 and the feeding channels 25 (especially the vertical flow section 253) are respectively set on both sides of the discharging channels 26. That is, the feeding channels 25 and the discharging channels 26 are connected only through the separation chamber 21. The dust-laden airflow must strictly flow in the direction of feeding channel 25 → separation chamber 21 → discharging channel 26 to ensure that the paper-like waste can enter the separation chamber 21 for separation.

[0074] Furthermore, the aforementioned baffle 27 also includes a vertical plate 273 connected to the arc-shaped plate 272. The vertical plate 273 is disposed along the side of the arc-shaped plate 272 tangentially, and the vertical plate 273 forms the aforementioned vertical flow section 253 between itself and the inner wall of the separation chamber 21. By providing the vertical plate 273, the length of the vertical flow section 253 is extended. The dust-laden airflow is blocked by the vertical plate 273 and cannot flow along the lower circumference of the arc-shaped plate 272 to the discharge channel 26, thereby preventing the paper-like waste material from flowing to the discharge channel 26 with the airflow without settling.

[0075] Meanwhile, the arc length of the cross section of the aforementioned arc plate 272 is a superior arc, and its central angle is 270°.

[0076] The aforementioned separation chamber 21 has an inclined wall 28 positioned opposite the output end of the vertical flow section 253, with the lower end of the inclined wall 28 extending to the third discharge port 24. After the dust-laden airflow exits the vertical flow section 253, it impacts the inclined wall 28, resulting in a reduction in velocity. This improves the separation effect between the paper-like waste and the airflow, guiding the paper-like waste to the third discharge port 24. The angle between the inclined wall 28 and the horizontal line must be greater than the dust's angle of repose to ensure that dust does not adhere to or accumulate on the inclined wall 28. The angle is designed specifically according to the type of dust being processed, but is typically greater than 45°.

[0077] Furthermore, the aforementioned vortex separator 20 is provided with reinforcing ribs 29 on the outer surface of the inclined wall 28 to improve the strength of the inclined wall 28, thereby ensuring the service life of the entire cyclone separator.

[0078] The vortex separator 20 described above has several installation windows (see the square windows in the figure) on its side for installing photoelectric material sensors. The installation windows are enclosed with transparent glass plates, and the material position is detected by laser. They can also be used as observation windows.

[0079] The aforementioned negative pressure device 40 is a silencer fan.

[0080] All the connections between the aforementioned devices are achieved through pipelines. For example, the first feed inlet 13 is connected to the processing station of the laser die-cutting machine via a pipeline, thereby connecting the laser die-cutting machine to the entire recycling system; the first discharge outlet 12 is connected to the second feed inlet 22 via a pipeline 60; the second discharge outlet 23 is connected to the input end of the dust collector 30 via a pipeline 70; and the output end of the dust collector 30 is connected to the negative pressure device 40 via a pipeline 80. Each pipeline can be designed with different shapes depending on the installation location of the laser die-cutting machine, rectifier 10, vortex separator 20, dust collector 30, and negative pressure device 40.

[0081] The aforementioned third discharge port 24 is connected to the chip briquetting device (a conventional device, not shown in the figure), which is to process the paper-like material separated by the vortex separator 20 into chips and briquettes, thereby reducing volume and lowering the space cost occupied by waste.

[0082] The present invention also includes a support structure 90 for mounting the vortex separator 20, the dust collector 30, etc., to satisfy the installation of the vortex separator 20 and the dust collector 30 in the corresponding positions and to raise them to a certain height.

[0083] The present invention also includes a multi-port connector 100 provided at the first discharge port 12. When there are multiple rectifiers 10, the rectifiers 10 are first connected to the multi-port connector 100, and then connected to the vortex separator 20 through the multi-port connector 100 to achieve a confluence effect.

[0084] The present invention also includes a crusher (a conventional device, not shown in the figure) installed at the front end of the first feed inlet 13. When the waste generated by the laser die-cutting machine has heavy and large block waste, the block waste can be crushed by the crusher before being transported to the rectifier 10 to avoid affecting the operational stability of the entire system.

[0085] refer to Figure 11 and Figure 12 As shown, the workflow and principle of this invention are as follows:

[0086] ① Under the operation of the negative pressure device 40, the entire system generates a continuous airflow towards the negative pressure device 40, thereby drawing the waste generated by the laser die-cutting machine into the rectifier 10, and then returning it to the vortex separator 20 from the rectifier 10.

[0087] ② When the airflow enters the separation chamber 21 from the feed channel 25, the velocity of the dust-laden airflow decreases significantly due to the sudden increase in cross-sectional area, reducing the airflow's ability to carry dust. Larger dust particles and paper-like waste settle freely under gravity. Due to the guiding effect of the guide section 252, the airflow collides with the inclined wall 28, further reducing the airflow velocity and enhancing the settling effect. At the same time, the inclined wall 28 has a guiding effect, causing the airflow to change direction and flow towards the third discharge port 24. It collides with the inclined wall at the third discharge port 24, further reducing the airflow velocity. Here, the velocity of larger particles and paper-like waste is close to 0, and they settle at the third discharge port 24, where they are collected by the recycling device. The remaining fine dust rises to the second discharge port 23 under the continuous extraction of the negative pressure device, completing the separation of paper-like waste. The fine dust also flows with the airflow to the dust collector 30.

[0088] Through the above scheme, the present invention forms a negative pressure recovery system by sequentially connecting a rectifier 10, a vortex separator 20, a dust collector 30, and a negative pressure device 40. This system can continuously extract waste from laser die-cutting machines, achieving automated waste recycling. By designing a feeding channel 25 within the separation chamber 21, the flow of dust-laden airflow is guided, allowing paper-like waste to adhere to the wall under the action of inertial centrifugal force when the airflow passes through the arc-shaped upper wall 2521. After flowing downwards along the vertical flow section 253 and entering the separation chamber 21, the paper-like waste and trace amounts of larger dust particles are separated from the airflow due to the reduced airflow velocity, achieving sedimentation. In particular, the paper-like waste will not flow to the dust collector 30 at the rear end, avoiding system blockage and ensuring the air pressure stability of the entire negative pressure recovery system, ensuring the continuous and stable operation of the entire system. The rectifier 10 connects multiple laser die-cutting machines to the system, greatly increasing the waste processing capacity. One negative pressure recovery system can correspond to multiple laser die-cutting machines, achieving the purpose of improving efficiency and reducing costs.

[0089] The above embodiments and figures are not intended to limit the product form and style of the present invention. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of the present invention.

Claims

1. A lightweight material recovery and separation system, characterized in that: It includes at least one rectifier, as well as a vortex separator, a dust collector, and a negative pressure device; The rectifier is provided with a rectifier cavity, which has a first discharge port and a plurality of first inlets; The vortex separator is provided with a separation chamber, a second inlet, a second outlet, and a third outlet. The second inlet and the second outlet are both located on the side of the vortex separator, and the third outlet is located at the bottom of the vortex separator. The second inlet communicates with the first outlet, and the second outlet communicates with the input end of the dust collector. The separation chamber is provided with an inlet channel and an outlet channel. The inlet channel includes a transverse flow section, a guide section, and a vertical flow section connected in sequence. The second inlet is located at the input end of the transverse flow section. The guide section has an arc-shaped upper wall. The output end of the vertical flow section faces downwards and communicates with the separation chamber. The side wall of the discharge channel is provided with a through hole to connect to the separation chamber, and the second discharge port is provided at the output end of the discharge channel; A baffle is provided inside the separation chamber. The baffle includes a horizontal plate and an arc-shaped plate connected together. The horizontal plate is disposed on the upper side of the arc-shaped plate along the tangent of the arc-shaped plate. The feeding channel is formed between the upper surface of the horizontal plate, the outer peripheral surface of the arc-shaped plate, and the inner wall of the separation chamber. The through hole is formed between the lower surface of the horizontal plate and the end of the arc-shaped plate. The discharge channel is formed on the inner peripheral surface of the arc-shaped plate. The baffle also includes a vertical plate connected to the arc-shaped plate. The vertical plate is arranged tangentially to the side of the arc-shaped plate, and a vertical flow section is formed between the vertical plate and the inner wall of the separation chamber. The separation chamber has an inclined wall opposite to the output end of the vertical flow section. The lower end of the inclined wall extends to the third discharge port, and the angle between the inclined wall and the horizontal line is greater than the dust repose angle. The output end of the dust collector is connected to the negative pressure device.

2. The lightweight material recovery and separation system according to claim 1, characterized in that: It also includes an air supply and noise reduction assembly disposed on the rectifier; the air supply and noise reduction assembly includes an air supply pipe, an air intake pipe, a silencer, and sound-absorbing cotton; the output end of the air supply pipe is connected to the rectifier cavity; the air intake pipe is connected to the input end of the air supply pipe and is provided with an air inlet, and the diameter of the air inlet is larger than the diameter of the air supply pipe; the silencer is disposed at the connection between the air intake pipe and the air supply pipe; the sound-absorbing cotton is attached to the inner wall of the air intake pipe.

3. The lightweight material recovery and separation system according to claim 2, characterized in that: The air replenishment and noise reduction component also includes an automatic air replenishment mechanism; the automatic air replenishment mechanism includes a pressure sensor disposed in the rectifier cavity and an electric butterfly valve disposed in the air replenishment pipeline; the pressure sensor is electrically connected to the electric butterfly valve.

4. The lightweight material recovery and separation system according to claim 3, characterized in that: The automatic gas replenishment mechanism also includes a manual butterfly valve installed in the gas replenishment pipeline.

5. The lightweight material recovery and separation system according to claim 3, characterized in that: The air supply pipe includes two flanged pipes; one flanged pipe is sealed at both ends to the rectifier body and the output end of the manual butterfly valve, and the other flanged pipe is sealed at both ends to the input end of the manual butterfly valve and the output end of the electric butterfly valve; the output end of the air intake pipe is sealed to the input end of the electric butterfly valve.

6. The lightweight material recovery and separation system according to claim 1, characterized in that: The arc length of the cross section of the arc plate is a major arc, and its central angle is 270°.

7. The lightweight material recovery and separation system according to claim 1, characterized in that: The vortex separator is provided with reinforcing ribs on the outer surface of the inclined wall.

8. The lightweight material recovery and separation system according to claim 1, characterized in that: The negative pressure device is a silencer fan.

9. The lightweight material recovery and separation system according to claim 1, characterized in that: The third discharge port is connected to the chip briquetting device.

10. The lightweight material recovery and separation system according to claim 1, characterized in that: It also includes a multi-port connector disposed at the first discharge port, wherein the rectifier is first connected to the multi-port connector, and then connected to the vortex separator through the multi-port connector.

11. The lightweight material recovery and separation system according to claim 1, characterized in that: It also includes a crusher located at the front end of the first feed inlet.

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