Material unblocking method and device, material conveying system

Abstract

The application discloses a material dredging method and device and a material conveying system, and is applied to the field of material conveying. If the material is blocked in the horn bend when the control unit is conveying the material, the control unit controls each dredging unit to be in a first working mode, thereby assisting the flow of the material of the material conveying system, especially the material not condensed in the horn bend, to blow part of the material not condensed to a material receiving bin, so that the waste of the material is avoided. Then, the material sending bin and the material receiving bin in the material conveying system are closed, and each dredging unit is controlled to be in a second working mode, so that the condensed material is broken, and meanwhile, the material collecting tank collects the broken material in the horn bend. The material blocking in the horn bend is cleaned in the material conveying process, the conveying resistance of the material is effectively reduced, the material conveying overtime is avoided, and the production capacity efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of material handling, specifically to a material unblocking method and apparatus, and a material handling system. Background Technology

[0002] In positive pressure conveying processes for powder materials, compressed air is used as a power source to propel materials from the sending tank to the target receiving bin within a closed pipeline. This method is widely used due to its advantages such as long conveying distances, single-point feeding, multi-point feeding, and good sealing. Traditional positive pressure conveying pipelines use angular bends for simple direction changes at bends.

[0003] However, using the bullhorn bend to change the direction of material transmission can easily lead to material blockage, resulting in material conveying timeouts and reduced conveying capacity efficiency. Summary of the Invention

[0004] This invention provides a material unblocking method and apparatus, and a material conveying system, which can solve the problem in related technologies where material blockage easily occurs at bends during material conveying, leading to material conveying timeouts and reduced conveying capacity efficiency. The technical solution includes:

[0005] On the one hand, a material unblocking device is provided, which is connected to the bend in the material conveying system. The bend is provided with a plurality of first connection holes and a second connection hole. The material unblocking device includes: a plurality of unblocking units, a control unit and a material collection tank.

[0006] Each unblocking unit has multiple air outlets at its air outlet end, and the air outlet end of the unblocking unit is connected to a first connection hole, while the material collection tank is connected to a second connection hole.

[0007] Control unit, used for:

[0008] If a blockage occurs in the bend of the material conveying system, the first working mode will be activated for each unblocking unit.

[0009] When the duration of each unblocking unit in the first working mode reaches the first preset duration, the material sending bin and material receiving bin in the material conveying system are closed, and each unblocking unit is controlled to be in the second working mode.

[0010] The gas pressure output by the unblocking unit in the first working mode is used to assist the flow of uncondensed material in the bend; the gas pressure output by the unblocking unit in the second working mode is used to break up the condensed material.

[0011] The material collection tank is used to collect broken materials in the bend when each dredging unit is in its second working mode.

[0012] Optionally, the material clearing device also includes an air source unit; each clearing unit includes: a pipe body, a transmission component located inside the pipe body, and a Laval pipe; the air inlet end of the pipe body is connected to the air source unit, the air outlet end of the pipe body is provided with multiple air outlets, the transmission component is fixed on the inner wall of the pipe body and connected to the outer wall of the Laval pipe, and the axis of the Laval pipe is parallel to the axis of the pipe body.

[0013] The control unit is used to control the gas pressure output by the air source unit to each unblocking unit to the first pressure if there is a blockage in the bend, so that the unblocking unit is in the first working mode.

[0014] When the unblocking unit is in the first working mode, the transmission component is used to drive the Laval pipe to move along the extension direction of the pipe body towards the target position under the action of the first air pressure; the distance between the target position and the air outlet of the pipe body is greater than the preset distance.

[0015] Optionally, the control unit is also used to control the gas pressure output by the gas source unit to each unblocking unit to a second pressure when the duration of each unblocking unit in the first working mode reaches a first preset duration, so that the unblocking unit is in the second working mode and the second pressure is greater than the first pressure.

[0016] When the unblocking unit is in the second working mode, the transmission component is also used to drive the Laval pipe to move along the extension direction of the pipe body towards the bend under the action of the second air pressure, so that the Laval pipe contacts the air outlet end of the pipe body.

[0017] Optionally, the transmission assembly includes a main return spring and a buffer spring;

[0018] The preload of the buffer spring is less than the target pressure, which is the minimum trigger pressure for the unblocking unit to enter the second working mode.

[0019] Optionally, each unblocking unit may also include: a limiting element located on the inner wall of the pipe body, and the limiting element is located on the side of the transmission assembly away from the bend;

[0020] The limiting element is used to prevent the Laval tube from exceeding the second position when the transmission assembly is in a stretched state.

[0021] Optionally, the control unit is also used for:

[0022] If the culvert remains blocked in the bend after the second working mode has been in operation for the second preset time, the gas pressure output by each culvert unit will be increased.

[0023] Optionally, the control unit is also used for:

[0024] If no blockage occurs in the bend, and the pipeline pressure in the bend is greater than the first preset pressure but less than the second preset pressure, then each unblocking unit is controlled to operate in the first working mode.

[0025] On the other hand, a material unblocking method is provided, applied to a control unit in the material unblocking device described above; the method includes:

[0026] If a blockage occurs in the bend of the material conveying system, the first working mode will be activated for each unblocking unit.

[0027] When the duration of each unblocking unit in the first working mode reaches the first preset duration, the material sending bin and material receiving bin in the material conveying system are closed, and each unblocking unit is controlled to be in the second working mode.

[0028] The gas pressure output by the unblocking unit in the first working mode is used to assist the flow of uncondensed material in the bend; the gas pressure output by the unblocking unit in the second working mode is used to break up the condensed material.

[0029] On the other hand, a control unit is provided, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it implements the material clearing method described above.

[0030] In another aspect, a material conveying system is provided, comprising: a material sending bin, a first conveying pipeline, a second conveying pipeline, a material receiving bin, and the material unblocking device described above.

[0031] One end of the horn bend is connected to the material sending bin via the first conveying pipeline, and the other end of the horn bend is connected to the material receiving bin via the second conveying pipeline.

[0032] The material unblocking device is connected to the pipe body of the horn bend.

[0033] This application provides a material unblocking method and apparatus, and a material conveying system. In the material unblocking apparatus, if a blockage occurs in the bend of the material conveying system, the control unit controls each unblocking unit to operate in a first working mode. This assists in the flow of material in the material conveying system, especially the non-condensed material in the bend, to blow some of the non-condensed material to the material receiving bin, avoiding material waste. Subsequently, the material sending bin and material receiving bin in the material conveying system are closed, and each unblocking unit is controlled to operate in a second working mode to break up the condensed material. Simultaneously, the material collection tank collects the broken material from the bend. This achieves the clearing of blockages in the bend during material conveying, effectively reducing material conveying resistance, preventing material conveying timeouts, and improving production efficiency.

[0034] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the structure of a material transfer system provided in an embodiment of this application;

[0036] Figure 2 This is a schematic diagram of another material transfer system provided in an embodiment of this application;

[0037] Figure 3 This is a schematic diagram of the structure of a dredging unit provided in an embodiment of this application;

[0038] Figure 4 This is a schematic diagram of another unblocking unit provided in an embodiment of this application;

[0039] Figure 5 This is a flowchart of a material unblocking method provided in an embodiment of this application;

[0040] Figure 6 This is a schematic diagram of the structure of a control unit provided in an embodiment of this application. Detailed Implementation

[0041] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0042] In positive pressure conveying processes for powder materials, compressed air is used as a power source to propel materials from the sending tank to the target receiving bin within a closed pipeline. This method is widely used due to its advantages such as long conveying distance, single-point feeding, multi-point feeding, and good sealing. Traditional positive pressure conveying pipelines use angular bends for simple direction changes at bends. However, angular bends have the following disadvantages:

[0043] ① Material blockage during conveying: During the conveying process, the material moves in the pipeline with the help of compressed air. Material accumulation and bridging in the pipeline prevent the airflow from passing evenly. In addition, bends and the increase in the conveying path will further increase the conveying resistance, resulting in material conveying timeout and reduced conveying capacity efficiency.

[0044] ② Inability to deeply clean pipelines: The air source during transmission is singular, consisting only of air blowing from the sending tank into the pipeline. The gas is transported within the pipeline's inner diameter, failing to effectively clean materials adhering to the inner walls of bends. This leads to material contamination during subsequent product switching, and the long-term uncleaned pipeline also increases the risk of material blockage during later use.

[0045] ③ Difficulty in cleaning up scabbed material: In positive pressure conveying, there may be material that has not been fully crushed by the front-end system or has become damp and clumped. This part of the material is prone to accumulate at the bends during the material conveying process, causing pipeline blockage. Increasing the air intake, blowing air, knocking and other methods cannot effectively clear it. It is necessary to manually disassemble the bends and check the blockage one by one, which is time-consuming and labor-intensive.

[0046] This application provides a material clearing device. When a blockage occurs in a bend in the material conveying system, the control unit in this device activates a first operating mode to facilitate the flow of material, especially non-condensed material in the bend, by blowing some of the non-condensed material into the material receiving bin, thus preventing material waste. Subsequently, the material sending and receiving bins in the material conveying system are closed, and the clearing units are activated to a second operating mode to break up the condensed material. Simultaneously, a material collection tank collects the broken material from the bend. This device effectively clears blockages in the bends during material conveying, reducing material transport resistance, preventing material transport timeouts, and improving production efficiency.

[0047] Figure 1 This is a schematic diagram of the structure of a material transfer system provided in an embodiment of this application, as shown below. Figure 1 As shown, the material transfer system may include: a material dispatch bin ( Figure 1 (Not shown), First conveying pipeline 10, Second conveying pipeline 20, Material receiving bin ( Figure 1 (Not shown), horn bend 30 and material unblocking device.

[0048] One end of the horn bend 30 is connected to the material sending bin via the first conveying pipeline 10, and the other end of the horn bend 30 is connected to the material receiving bin via the second conveying pipeline 20.

[0049] The material unblocking device is connected to the pipe body of the horn bend 30 in the material conveying system. The horn bend 30 is provided with multiple first connection holes and second connection holes.

[0050] refer to Figure 1 The material unblocking device may include: multiple unblocking units 41, a control unit (not shown in the figure) and a material collection tank 42.

[0051] Each unblocking unit 41 has multiple air outlets at its air outlet end, and the air outlets of multiple unblocking units 41 are connected to multiple first connection holes one by one. The air inlet end of the material collection tank 42 is connected to the second connection hole.

[0052] Control unit, used for:

[0053] If a blockage occurs in the bend 30 when the material is being transported by the material conveying system, then each unblocking unit 41 will be controlled to be in the first working mode.

[0054] When the duration of each unblocking unit 41 in the first working mode reaches the first preset duration, the material sending bin and material receiving bin in the material conveying system are closed, and each unblocking unit 41 is controlled to be in the second working mode.

[0055] In this system, the gas pressure output by the unblocking unit 41, operating in the first mode, is used to facilitate the flow of uncondensed material within the bend 30. (Reference) Figure 2 The gas pressure output by the unblocking unit 41 in the second working mode is used to break up the condensed material 001, that is, to unblock the condensed material 001. The condensed material 001 can be called scab material.

[0056] refer to Figure 1 and Figure 2 The material collection tank 42 is used to collect the broken material in the bend 30 when each unblocking unit 41 is in the second working mode, thereby realizing the collection of the broken material 002.

[0057] refer to Figure 1 The air inlet of the material collection tank 42 can be connected to the second connection hole through the negative pressure transmission pipe 43. The material collection tank 42 can separate gas and material and can collect the material extracted from the negative pressure transmission pipe 43 separately.

[0058] In this embodiment, the material transfer system may further include a pipeline pressure testing instrument 50 installed within the bend 30. The control unit can obtain the pipeline pressure within the bend 30 through the pipeline pressure testing instrument 50. If the pipeline pressure is greater than or equal to a second preset pressure, it can be determined that a blockage has occurred within the bend 30. If the pipeline pressure is less than the second preset pressure, it can be determined that no blockage has occurred within the bend 30.

[0059] It should be noted that when each unblocking unit 41 is in its first operating mode, the material delivery chamber will still provide positive pressure gas because it is not closed. During material transfer, blockage may occur in the bend 30 due to condensed material 001, which can be referred to as sludge. However, there will still be uncondensed material between the sludge and sludge, which is still usable. Therefore, after the control unit determines that there is blockage in the bend 30, it can first control each unblocking unit 41 to be in its first operating mode to facilitate the flow of uncondensed material in the bend 30, thereby transferring as much uncondensed material as possible to the material receiving chamber and avoiding material waste.

[0060] When each unblocking unit 41 has been in the first working mode for a predetermined period of time, the control unit can determine that most of the non-condensed material has been blown to the material receiving chamber, but the blockage is still not resolved. At this point, effective flow assistance and unblocking are no longer possible. Therefore, the material sending chamber can be closed to prevent positive pressure gas from continuously entering the pipeline and causing the pressure inside the bend 30 to continue to increase. Since the condensed material is unusable, closing the material receiving chamber can prevent the transfer of crushed material to the material receiving chamber after the condensed material has been crushed, thus avoiding contamination of the material in the material receiving chamber.

[0061] The gas pressure output by the unblocking unit 41 in the second working mode is used to break up the condensed material. The material collection tank 42 collects the material in the bend 30 when all unblocking units 41 are in the second working mode. This clears blockages in the bend 30 during material transport, effectively reducing transport resistance, preventing transport timeouts, and improving production efficiency. The material unblocking device provided in this embodiment assists in material transport, efficiently cleans pipelines, and automatically identifies and clears blockages, thereby improving transport stability and efficiency. Furthermore, it eliminates the need for manual cleaning of sludge, saving time and effort.

[0062] In summary, this application provides a material clearing device. When a blockage occurs in the bend of a material conveying system, the control unit in this device controls each clearing unit to operate in a first working mode. This assists in the flow of material in the material conveying system, especially the non-condensed material in the bend, blowing some of the non-condensed material to the material receiving bin, thus avoiding material waste. Subsequently, the material sending bin and material receiving bin in the material conveying system are closed, and each clearing unit is controlled to operate in a second working mode to break up the condensed material. Simultaneously, the material collection tank collects the broken material in the bend. This achieves the clearing of blockages in the bend during material conveying, effectively reducing material conveying resistance, preventing material conveying timeouts, and improving production efficiency.

[0063] In this embodiment, the material conveying system may include multiple bends 30, each of which can be equipped with a material unblocking device. Furthermore, multiple unblocking units 41 are evenly distributed across the bends 30. Since blockages frequently occur at the bend 30 closest to the material delivery bin, 6 to 10 unblocking units 41 can be installed on this bend 30. Because the risk of blockages is significantly reduced at bends 30 farther from the material delivery bin, only 2 to 4 unblocking units 41 are needed on subsequent bends 30 to ensure efficient pipeline cleaning during material switching on the production line.

[0064] refer to Figure 1 As in example 2, the material handling device may also include an air source unit 44. (See reference) Figure 3 Each unblocking unit 41 may include: a pipe body 410, a transmission assembly 411 located inside the pipe body 410, and a Laval pipe 412. The air inlet end of the pipe body 410 is connected to the air source unit 44, and the air outlet end of the pipe body 410 is provided with multiple air outlet holes. The transmission assembly 411 is fixed to the inner wall of the pipe body 410 and connected to the outer wall of the Laval pipe 412. The axis of the Laval pipe 412 is parallel to the axis of the pipe body 410.

[0065] Optionally, the air inlet of the pipe body 410 can be connected to the gas source unit 44 through a gas transmission pipe. Furthermore, a solenoid valve 45 and an airflow controller 46 can be installed on the gas transmission pipe. When the gas source unit 44 outputs gas to each unblocking unit 41, the solenoid valve 45 and the airflow controller 46 are in the open state.

[0066] If a blockage occurs in the bend 30, the control unit controls the air source unit 44 to output gas at the first pressure to each unblocking unit 41, so that the unblocking unit 41 is in the first working mode.

[0067] When the unblocking unit 41 is in the first working mode, the transmission component 411 is used to drive the Laval pipe 412 to move along the extension direction of the pipe body 410 towards the target position under the action of the first air pressure; the distance between the target position and the air outlet end of the pipe body 410 is greater than the preset distance.

[0068] The movement of Laval nozzle 412 to the target position can refer to the movement of its end to the target position. The structure of a Laval nozzle is: a converging section (front throat) → a narrow throat (minimum cross-section) → a expanding section (rear expansion). The Laval effect generated by Laval nozzle 412 refers to the physical phenomenon where gas or fluid can accelerate from subsonic to supersonic speeds when passing through a special converging-expanding pipe (Laval nozzle). (Reference) Figure 3 When the unblocking unit 41 is in the first working mode, the Laval pipe 412 moves slowly along the extension direction of the pipe body 410 under the action of the first air pressure. There is a certain distance between the target position of the Laval pipe 412 and the air outlet of the pipe body 410, and the air outlet of the pipe body 410 forms an airflow-aiding passage 003. By using the Laval pipe 412, the airflow can be accelerated, the first air pressure can be amplified, and the air consumption can be reduced while assisting material transportation, effectively saving energy, for example, reducing energy consumption by more than 40%.

[0069] In this embodiment, the control unit can open the solenoid valve 45 and send the first air pressure to the airflow controller 46, so that the airflow controller 46 controls the air source unit 44 to output the first air pressure to each unblocking unit 41.

[0070] In some embodiments of this application, the control unit is further configured to control the gas source unit 44 to output gas with a second pressure to each unblocking unit 41 when the duration of each unblocking unit 41 in the first working mode reaches a first preset duration, so that the unblocking unit 41 is in the second working mode and the second pressure is greater than the first pressure.

[0071] When the unblocking unit 41 is in the second working mode, the transmission component 411 is also used to drive the Laval pipe 412 to move along the extension direction of the pipe body 410 towards the bend 30 under the action of the second gas pressure, so that the Laval pipe 412 contacts the outlet end of the pipe body 410, so that the end of the Laval pipe 412 blocks at least two of the multiple outlet holes, thereby reducing the number of outlet holes at the outlet end and reducing the gas delivery area at the outlet end.

[0072] refer to Figure 4When the unblocking unit 41 is in the second working mode, the transmission component 411 drives the Laval pipe 412 to move quickly to the limit position under the action of the second air pressure. The end of the Laval pipe 412 contacts the air outlet end of the pipe body 410, thereby blocking most of the air outlets on the air outlet end of the pipe body 410 (for example, blocking 80% of the air outlets), thus forming the material blockage crushing air passage 004, thereby realizing the crushing of the material condensed in the bullhorn bend 30.

[0073] With only a 20% increase in air flow provided by air source unit 44, the use of Laval tube 412 can increase the air pressure output by unblocking unit 41 by 6 times or more compared to traditional pulse air knife units (Laval tube 412 first increases the pressure by 20% to 60%, and the sharp reduction in the number of air outlets (more than 80%) further increases it by more than 500% on top of the increase provided by Laval tube 412). This reduces energy consumption while improving the efficiency of crushing condensed materials, thereby increasing production efficiency.

[0074] During the second working mode of each unblocking unit 41, the control unit can obtain the pipeline pressure in the bend 30 in real time. When the pipeline pressure is less than or equal to the first preset pressure and the duration of the pipeline pressure being less than or equal to the first preset pressure is greater than the target duration, the control unit can determine that the pressure in the bend 30 is low and relatively stable. Therefore, it can be determined that the condensed material has been cleaned up and the material unblocking device can be shut down.

[0075] refer to Figure 3 and Figure 4 The transmission assembly 411 may include a main return spring 411a and a buffer spring 411b. The preload of the buffer spring 411b is less than the target pressure, which is the minimum trigger pressure for the unblocking unit 41 to enter the second working mode. When the unblocking unit 41 is in the first working mode, and the buffer spring 411b is compressed due to a brief pressure fluctuation, the Laval tube 412 only undergoes a slight displacement. After the pressure recovers, the Laval tube 412 can immediately reset, avoiding erroneous mode switching during normal material conveying and improving system stability.

[0076] Among them, the main reset spring 411a is a spring with high rigidity, which is used to ensure that the Laval tube 412 is fully reset after the gas source unit 44 stops supplying gas.

[0077] refer to Figure 3 and Figure 4 Each unblocking unit 41 may also include a limiting member 413 located on the inner wall of the pipe body 410, and the limiting member 413 is located on the side of the transmission assembly 411 away from the bend 30.

[0078] The limiting member 413 is used to limit the Laval tube 412 from exceeding the second position when the transmission assembly 411 is in a stretched state.

[0079] In this embodiment of the application, the transmission component 411 may include: a slide rail and a driver connected to the slide rail.

[0080] The slide rail is fixed to the inner wall of the pipe body 410, and the outer wall of the Laval pipe 412 is slidably connected to the slide rail. An actuator is used to control the movement distance of the Laval pipe 412 based on the air pressure output from the air source unit 44 to the unblocking unit 41.

[0081] Optionally, an actuator is used to control the Laval pipe 412 to move to a target position when the air pressure output from the air source unit 44 to the unblocking unit 41 is a first air pressure. When the air pressure output from the air source unit 44 to the unblocking unit 41 is a second air pressure, the actuator controls the end of the Laval pipe 412 to contact the air outlet end of the pipe body 410.

[0082] The unblocking unit 41 provided in this application embodiment is far more mechanically complex than a common valve or fixed Laval pipe 412, and has stronger adaptability.

[0083] In some embodiments of this application, the control unit is further configured to:

[0084] If the horn bend 30 is still blocked when the duration of the second working mode of each unblocking unit 41 reaches the second preset duration, the gas pressure output by the air source unit 44 to each unblocking unit 41 can be increased to ensure efficient cleaning of the blockage.

[0085] After the broken material is cleaned up, the control unit can control each unblocking unit 41 to return to the first working mode, thereby cleaning the bend 30. After the unblocking unit 41 has been in the first working mode for a third preset time, the bend 30 can be depressurized. After the depressurization is completed, the material unblocking device is turned off.

[0086] After the gas pressure provided by the gas source unit 44 decreases, the Laval tube 412 is less affected by the gas pressure impact. The spring in the transmission component 411 drives the Laval tube 412 to return to its original position, and the unblocking unit 41 is in the first working mode.

[0087] The control unit is also used to determine that if the pipeline pressure in the bend 30 is higher than the first preset pressure and lower than the second preset pressure when no blockage occurs in the bend 30, it is difficult to send materials and the material transmission efficiency is relatively low. Therefore, it can control each unblocking unit 41 to be in the first working mode to assist the flow of materials in the bend 30, effectively improve the material transportation efficiency of positive pressure conveying, and reduce phenomena such as material accumulation and bridging in the process pipeline.

[0088] During normal material transport, the negative pressure transport pipe 43, the material collection tank 42, and each unblocking unit 41 are all in a closed state. Therefore, the control unit can activate the material unblocking device before controlling each unblocking unit 41 to enter the first working mode.

[0089] If there is blockage in the bend 30 when the material conveying system is not conveying material, the control unit can control each unblocking unit 41 to operate in a second mode, thereby cleaning the blockage material in the bend 30. In this scenario, both the material sending bin and the material receiving bin are closed.

[0090] While each unblocking unit 41 is in its first or second working mode, the control unit can monitor the pipeline pressure within the bend 30 in real time, and then dynamically adjust the gas pressure output by the gas source unit 44 to each unblocking unit 41 based on the pipeline pressure. This effectively avoids excessive energy consumption while ensuring stable delivery.

[0091] The material unblocking device provided in this application aims to solve the technical problems of easy material blockage, difficult pipeline cleaning, and inability to clear clogged material in traditional positive pressure conveying processes. It provides a device that assists in material conveying, efficiently cleans pipelines, and automatically identifies and clears blockages, thereby improving conveying stability and efficiency. This material unblocking device has the following advantages:

[0092] ① Significantly improves the stability of material delivery: Through the flow-aiding of each unblocking unit, the fluidity and propulsion of the material during the delivery process are greatly enhanced, the delivery time is shortened, the material adhesion and blockage on the inner wall of the pipeline are effectively reduced, and the positive pressure conveying efficiency is greatly improved.

[0093] ② Avoid cross-contamination of materials: Before materials are transferred through the material conveying system, the material clearing device can thoroughly clean the residual materials in the pipeline using atmospheric pressure and multi-angle air blowing. This avoids the technical problem of cross-contamination caused by the inability to thoroughly clean the pipeline by relying solely on air blowing from the material sending bin to the material receiving bin when switching between different materials.

[0094] ③ Rapid identification and efficient clearing of blockages: Real-time monitoring and analysis can quickly identify potential blockage risks and determine blockage status. When a blockage occurs, the system autonomously empties the pipeline material, breaks up and collects the blockage, and clears the pipeline, effectively reducing the time spent on anomaly detection, pipeline disassembly and assembly, and manual material collection and processing, thus greatly improving the effective working time of material transportation.

[0095] ④ Intelligence and adaptability: The working mode of the unblocking unit is automatically adjusted by changes in air pressure, which can flexibly adapt to powder materials with different viscosities, particle sizes and flowability, and achieve the optimization of process parameters.

[0096] ⑤ High efficiency and seamless integration: The entire process of material blockage identification and pipeline clearing is completed within 3 minutes, with almost no impact on the production cycle, and it is easy to integrate into existing automated production lines.

[0097] In summary, this application provides a material clearing device. When a blockage occurs in the bend of a material conveying system, the control unit in this device controls each clearing unit to operate in a first working mode. This assists in the flow of material in the material conveying system, especially the non-condensed material in the bend, blowing some of the non-condensed material to the material receiving bin, thus avoiding material waste. Subsequently, the material sending bin and material receiving bin in the material conveying system are closed, and each clearing unit is controlled to operate in a second working mode to break up the condensed material. Simultaneously, the material collection tank collects the broken material in the bend. This achieves the clearing of blockages in the bend during material conveying, effectively reducing material conveying resistance, preventing material conveying timeouts, and improving production efficiency.

[0098] Figure 5 This is a flowchart of a material unblocking method provided in an embodiment of this application, applied to the control unit in the aforementioned material unblocking device, such as... Figure 5 As shown, the method includes:

[0099] Step 501: When materials are being transported in the material conveying system, if a blockage occurs in the bend, control each unblocking unit to be in the first working mode.

[0100] Step 502: When the duration of each dredging unit in the first working mode reaches the first preset duration, close the material sending bin and material receiving bin in the material transfer system, and control each dredging unit to be in the second working mode.

[0101] The gas pressure output by the unblocking unit 41 in the first working mode is used to assist the flow of uncondensed material in the bend 30; the gas pressure output by the unblocking unit 41 in the second working mode is used to break up the condensed material.

[0102] Optionally, each unblocking unit can be controlled to operate in a first working mode, including:

[0103] If a blockage occurs in the bend, the gas pressure output by the air source unit to each unblocking unit is set to the first pressure, so that the unblocking unit is in the first working mode.

[0104] Optionally, each dredging unit can be controlled to operate in a second mode, including

[0105] When the duration of each unblocking unit in the first working mode reaches the first preset duration, the gas pressure output by the gas source unit to each unblocking unit is controlled to be the second gas pressure, so that the unblocking unit is in the second working mode and the second gas pressure is greater than the first gas pressure.

[0106] Optionally, the method further includes:

[0107] If the culvert remains blocked in the bend after the second working mode has been in operation for the second preset time, the gas pressure output by each culvert unit will be increased.

[0108] Optionally, the method further includes:

[0109] If no blockage occurs in the bend, and the pipeline pressure in the bend is greater than the first preset pressure but less than the second preset pressure, then each unblocking unit is controlled to operate in the first working mode.

[0110] In summary, this application provides a material unblocking method. In this method, when a blockage occurs in a bend in the material conveying system, the control unit controls each unblocking unit to operate in a first working mode. This assists in the flow of material in the material conveying system, especially the non-condensed material in the bend, blowing some of the non-condensed material to the material receiving bin, thus avoiding material waste. Subsequently, the material sending bin and material receiving bin in the material conveying system are closed, and each unblocking unit is controlled to operate in a second working mode to break up the condensed material. Simultaneously, the material collection tank collects the broken material in the bend. This method achieves the clearing of blockages in the bend during material conveying, effectively reducing material conveying resistance, preventing material conveying timeouts, and improving production efficiency.

[0111] Figure 6 This is a schematic diagram of the structure of a control unit provided in an embodiment of this application, such as... Figure 6 As shown, the control unit 60 may include a memory 601, a processor 602, and a computer program stored in the memory 601 and executable on the processor 602. When the processor 602 executes the computer program, it implements the material clearing method described in the above embodiments.

[0112] This application provides a computer-readable storage medium storing a computer program thereon, which, when executed by a processor, implements the material unblocking method described in the above embodiments.

[0113] It should be noted that the logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be specifically implemented in any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus, or device (such as a computer-based system, a processor-included system, or other system that can fetch and execute instructions from, an instruction execution system, apparatus, or device). For the purposes of this specification, "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transmit programs for use by, or in conjunction with, an instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of computer-readable media include: an electrical connection having one or more wires (electronic device), a portable computer disk drive (magnetic device), random access memory (RAM), read-only memory (ROM), erasable and editable read-only memory (EPROM or flash memory), fiber optic devices, and portable optical disc read-only memory (CDROM). Alternatively, the computer-readable medium may be paper or other suitable media on which the program can be printed, since the program can be obtained electronically, for example, by optically scanning the paper or other medium, followed by editing, interpreting, or otherwise processing as necessary, and then stored in a computer memory.

[0114] It should be understood that various parts of the present invention can be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, it can be implemented using any one or a combination of the following techniques known in the art: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (PGAs), field-programmable gate arrays (FPGAs), etc.

[0115] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0116] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are 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, they should not be construed as limitations on this invention.

[0117] Furthermore, the terms "first," "second," etc., used in the embodiments of this invention are for descriptive purposes only and should not be construed as indicating or implying relative importance, or implicitly specifying the number of technical features indicated in this embodiment. Therefore, features defined with terms such as "first" and "second" in the embodiments of this invention can explicitly or implicitly indicate that the embodiment includes at least one of those features. In the description of this invention, the word "multiple" means at least two or more, such as two, three, four, etc., unless otherwise explicitly specified in the embodiments.

[0118] In this invention, unless otherwise explicitly specified or limited in the embodiments, the terms "installation," "connection," "joining," and "fixing" appearing in the embodiments should be interpreted broadly. For example, a connection can be a fixed connection, a detachable connection, or an integral part; it can also be a mechanical connection, an electrical connection, etc. Of course, it can also be a direct connection, or an indirect connection through an intermediate medium, or it can be 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 this invention based on the specific implementation.

[0119] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0120] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A material unblocking device, characterized in that, The material unblocking device is connected to the bend in the material conveying system. The bend is provided with multiple first connection holes and second connection holes. The material unblocking device includes: multiple unblocking units, a control unit, a material collection tank, and an air source unit. Each of the unblocking units has multiple air outlets at its air outlet end, and the air outlet end of the unblocking unit is connected to one of the first connection holes, while the material collection tank is connected to the second connection hole. Each of the aforementioned unblocking units includes: a pipe body, a transmission assembly and a Laval pipe located within the pipe body, and a limiting member located on the inner wall of the pipe body; the air inlet end of the pipe body is connected to the air source unit, the air outlet end of the pipe body is provided with a plurality of air outlet holes, the transmission assembly is fixed to the inner wall of the pipe body and connected to the outer wall of the Laval pipe, and the axis of the Laval pipe is parallel to the axis of the pipe body; the limiting member is located on the side of the transmission assembly away from the bend, and the limiting member is used to limit the Laval pipe from exceeding the second position when the transmission assembly is in a stretched state; The control unit is used for: When the material conveying system is conveying materials, if a blockage occurs in the bend, then each of the unblocking units is controlled to be in the first working mode. When the duration of each of the dredging units in the first working mode reaches a first preset duration, the material sending bin and the material receiving bin in the material conveying system are closed, and each of the dredging units is controlled to be in the second working mode. The gas pressure output by the unblocking unit in the first working mode is used to assist the flow of uncondensed material in the bend; the gas pressure output by the unblocking unit in the second working mode is used to break up the condensed material. The material collection tank is used to collect the broken material in the bend when each of the dredging units is in the second working mode.

2. The apparatus according to claim 1, Its features are, in, If a blockage occurs in the bend, the control unit controls the gas pressure output by the gas source unit to each of the unblocking units to a first pressure, so that the unblocking unit is in the first working mode. When the unblocking unit is in the first working mode, the transmission component is used to drive the Laval pipe to move along the extension direction of the pipe body towards the target position under the action of the gas at the first air pressure; the distance between the target position and the air outlet end of the pipe body is greater than a preset distance.

3. The apparatus according to claim 2, characterized in that, The control unit is further configured to control the gas pressure output by the gas source unit to each of the unblocking units to a second pressure when the duration of each of the unblocking units in the first working mode reaches a first preset duration, so that the unblocking unit is in the second working mode and the second pressure is greater than the first pressure. When the unblocking unit is in the second working mode, the transmission assembly is also used to drive the Laval pipe to move along the extension direction of the pipe body towards the bend under the action of the gas at the second air pressure, so that the Laval pipe contacts the air outlet end of the pipe body.

4. The apparatus according to claim 2, characterized in that, The transmission assembly includes a main return spring and a buffer spring; The preload of the buffer spring is less than the target pressure, which is the minimum trigger pressure for the unblocking unit to enter the second working mode.

5. The apparatus according to any one of claims 1 to 4, characterized in that, The control unit is also used for: If the horn bend is still blocked when each of the unblocking units is in the second working mode for a second preset time, the gas pressure output by each of the unblocking units will be increased.

6. The apparatus according to any one of claims 1 to 4, characterized in that, The control unit is also used for: If no blockage occurs in the bend, and the pipeline pressure in the bend is greater than the first preset pressure but less than the second preset pressure, then each of the unblocking units is controlled to be in the first working mode.

7. A method for clearing material blockages, characterized in that, The control unit is applied in the material unblocking device according to any one of claims 1 to 6; the method includes: When the material conveying system is conveying materials, if a blockage occurs in the bend, then each of the unblocking units is controlled to be in the first working mode. When the duration of each of the dredging units in the first working mode reaches a first preset duration, the material sending bin and the material receiving bin in the material conveying system are closed, and each of the dredging units is controlled to be in the second working mode. In this configuration, the gas pressure output by the unblocking unit in the first working mode is used to assist the flow of uncondensed material within the bend; the gas pressure output by the unblocking unit in the second working mode is used to break up condensed material.

8. A control unit, characterized in that, It includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, it implements the material clearing method of claim 7.

9. A material transfer system, characterized in that, The material conveying system includes: a material sending bin, a first conveying pipeline, a second conveying pipeline, a material receiving bin, and a material unblocking device as described in any one of claims 1 to 6; One end of the horn bend is connected to the material sending bin via the first conveying pipeline, and the other end of the horn bend is connected to the material receiving bin via the second conveying pipeline. The material unblocking device is connected to the pipe body of the horn bend.

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