Gypsum bin intelligent anti-blocking air sweeping system and gypsum bin intelligent anti-blocking method

Abstract

The invention relates to the technical field of stock bin unblocking, and provides an intelligent anti-blocking air sweeping system and an intelligent anti-blocking method for a gypsum bin. The intelligent air sweeping devices are uniformly distributed on the inner wall of the lower conical part of the gypsum bin in the circumferential direction, and each intelligent air sweeping device comprises a ball valve, a pulse electromagnetic valve, a one-way valve and a pulse air sweeping head which are sequentially connected through a pipeline; the control device comprises a PLC (Programmable Logic Controller), and the PLC is electrically connected with each pulse electromagnetic valve; wherein the PLC is configured to be capable of executing two unblocking modes including an independent circulation mode and a simultaneous working mode, the independent circulation mode is to control the pulse electromagnetic valves to be sequentially opened at intervals according to a preset sequence, and the simultaneous working mode is to control all or part of the pulse electromagnetic valves to be opened at the same time. Through cooperation of the air source device, the intelligent air sweeping device and the control device, accurate, efficient and intelligent active blockage prevention and removal are achieved.

Description

Technical Field

[0001] This application relates to the field of silo unblocking technology, specifically to an intelligent anti-blocking air sweeping system and an intelligent anti-blocking method for gypsum silos. Background Technology

[0002] Currently, in existing wet desulfurization systems of thermal power plants, gypsum silos serve as temporary storage devices for dehydrated gypsum. Due to the characteristics of gypsum removed by the dewatering machine, it easily adheres to the silo walls, causing difficulties in gypsum discharge. This discharge problem has long plagued the stable operation of the industry. Traditional solutions mainly rely on mechanical vibrators or manual tapping to periodically shake off the hardened gypsum from the silo walls. While these methods are widely used, they have significant drawbacks. The impact force generated by the vibrator is transmitted in the form of mechanical waves, resulting in low energy utilization. Furthermore, long-term impact can easily lead to damage to the silo walls and even cracks in the vibrator's base, resulting in a high failure rate and huge maintenance costs. In cases of severe blockage, manual tapping is still required, which is both high-risk and inefficient. This not only consumes manpower but also seriously affects the gypsum transportation schedule, placing dual pressure on the environmental and economic operation of power plants. In addition, pneumatic unclogging solutions exist, but existing pneumatic systems often suffer from complex structures, inefficient control, and limited unclogging modes. For example, they may employ complex multi-tank and pneumatic butterfly valve systems, or only achieve simple sequential start-stop operations, failing to provide precise, efficient, and energy-saving unclogging based on the actual gypsum compaction condition. Therefore, there is an urgent need for a gypsum silo anti-clogging system with good unclogging performance, high system reliability, and the ability to intelligently adjust its unclogging strategy according to operating conditions. This would ensure the continuous and stable operation of the desulfurization system, reduce maintenance costs, and improve the equipment's intelligence level. Summary of the Invention

[0003] This application aims to at least solve the technical problems of existing pneumatic systems in related technologies, such as complex structure, coarse control, and single unblocking mode. These systems can only achieve simple sequential start and stop, and cannot carry out precise, efficient, and energy-saving unblocking operations based on the actual compaction of gypsum.

[0004] To solve the above-mentioned technical problems, this application is implemented as follows: In a first aspect, this application provides an intelligent anti-clogging air-sweeping system for gypsum silos, comprising: an air source device, which includes an air compressor, an air tank, a refrigerated dryer, and a filter connected sequentially via pipelines; multiple intelligent air-sweeping devices, circumferentially distributed on the inner wall of the lower conical portion of the gypsum silo, each intelligent air-sweeping device including a ball valve, a pulse solenoid valve, a check valve, and a pulse air-sweeping head connected sequentially via pipelines; the air jet nozzle of the pulse air-sweeping head is positioned facing the silo wall; and a control device, which includes a PLC controller electrically connected to each pulse solenoid valve for point-to-point independent start-stop control of each pulse solenoid valve; wherein the PLC controller is configured to execute two unclogging modes: an independent cycle mode and a simultaneous working mode. The independent cycle mode controls each pulse solenoid valve to open sequentially at intervals according to a preset order, while the simultaneous working mode controls all or some pulse solenoid valves to open simultaneously.

[0005] This application provides an intelligent anti-clogging air-sweeping system for gypsum silos. Through the coordinated operation of an air source device, an intelligent air-sweeping device, and a control device, it achieves precise, efficient, and intelligent proactive anti-clogging and unclogging. In the efficient proactive unclogging scenario, the air-sweeping device is supplied with air by a single air source device. Through multiple pulse air-sweeping heads evenly distributed in a ring at the lower cone of the gypsum silo, high-pressure gas is directly injected into the interface between the material and the silo wall in the form of short pulses, forming a highly efficient "air shovel" effect. This results in high energy utilization and no equipment damage, fundamentally solving the problems of poor mechanical vibration effect and easy failure. In the precise intelligent control scenario, the core PLC controller of the control device implements point-to-point independent control of the pulse solenoid valve of each air-sweeping unit, breaking through the limitations of traditional group or hierarchical control. On this basis, it integrates two unclogging modes: an "independent circulation mode" for daily prevention and a "simultaneous working mode" for severe caking. These modes can be flexibly selected and switched according to the actual clogging situation, realizing a leap from "whether there is control" to "how to control intelligently," significantly improving unclogging efficiency and energy saving. In the context of system integration and reliability, this system adopts a simple and efficient air source chain of "air compressor, air tank, and cold dry filter", and eliminates the complex control air circuits and redundant valves in existing technologies, which greatly simplifies the system structure, reduces the number of failure points, and significantly enhances operational reliability and maintainability.

[0006] Secondly, this application proposes an intelligent anti-clogging method for gypsum silos, used in the intelligent anti-clogging air sweeping system for gypsum silos as described above. The intelligent anti-clogging method for gypsum silos includes: setting anti-clogging parameters through a PLC controller, including anti-clogging mode selection, pulse interval, and pulse width; the PLC controller sends a control signal to a designated pulse solenoid valve according to the set anti-clogging mode, pulse interval, and pulse width; the pulse solenoid valve opens instantaneously according to the control signal, causing compressed air from the air source device to be ejected through the pulse air sweeping head, forming an impact airflow that acts on the silo wall to achieve anti-clogging or anti-clogging.

[0007] The intelligent anti-clogging method for gypsum silos provided in this application, being used in the intelligent anti-clogging air sweeping system for gypsum silos described above, therefore possesses all the beneficial effects of the intelligent anti-clogging air sweeping system for gypsum silos, which will not be elaborated further here.

[0008] Additional aspects and advantages of this application will become apparent in the following description or may be learned by practice of this application. Attached Figure Description

[0009] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the structure of an intelligent anti-clogging air sweeping system for gypsum silos according to an embodiment of this application; Figure 2 This is a schematic diagram of the structure of an intelligent air sweeping device according to an embodiment of this application; Figure 3 This is one of the flowcharts for an intelligent anti-clogging method for gypsum silos according to an embodiment of this application; Figure 4 This is a second flowchart of an embodiment of the intelligent anti-clogging method for gypsum silos in this application.

[0010] in, Figure 1 and Figure 2 The correspondence between the reference numerals and component names in the attached drawings is as follows: 100 Intelligent anti-clogging air sweeping system for gypsum silos, 110 Air source device, 112 Air compressor, 114 Air tank, 116 Refrigerated dryer, 118 Filter, 120 Intelligent air sweeping device, 128 Ball valve, 122 Pulse solenoid valve, 124 Check valve, 126 Pulse air sweeping head, 130 Control device, 132 PLC controller, 134 Human-machine interface, 200 Gypsum silos. Detailed Implementation

[0011] To better understand the above-mentioned objectives, features, and advantages of this application, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0012] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0013] The following reference Figures 1 to 4 This application describes a smart anti-clogging air sweeping system 100 and a smart anti-clogging method for gypsum silos, provided according to some embodiments of the present application.

[0014] According to the first aspect of this application, Figure 1 and Figure 2 As shown, one embodiment of this application provides an intelligent anti-clogging air scavenging system 100 for gypsum silos, comprising: an air source device 110, which includes an air compressor 112, an air tank 114, a refrigerated dryer 116, and a filter 118 connected in sequence via pipelines; and multiple intelligent air scavenging devices 120, circumferentially distributed on the inner wall of the lower conical portion of the gypsum silo 200, each intelligent air scavenging device 120 including a ball valve 128, a pulse solenoid valve 122, a one-way valve 124, and a pulse air scavenging head 126 connected in sequence via pipelines, the air jet nozzle of the pulse air scavenging head 126 facing... A control device 130 is installed on the wall of the gypsum silo 200. The control device 130 includes a PLC controller 132, which is electrically connected to each pulse solenoid valve 122 and is used to perform point-to-point independent start and stop control on each pulse solenoid valve 122. The PLC controller 132 is configured to execute two unblocking modes: an independent cycle mode and a simultaneous working mode. In the independent cycle mode, the pulse solenoid valves 122 are controlled to open sequentially at intervals according to a preset order. In the simultaneous working mode, all or some of the pulse solenoid valves 122 are controlled to open simultaneously.

[0015] Specifically, such as Figure 1 and Figure 2 As shown, the intelligent anti-clogging air-sweeping system 100 for gypsum silos provided in this application includes an air source device 110, multiple intelligent air-sweeping devices 120, and a control device 130. The air source device 110 includes an air compressor 112, an air tank 114, a refrigerated dryer 116, and a filter 118 connected sequentially via pipelines. The multiple intelligent air-sweeping devices 120 are circumferentially distributed on the inner wall of the lower conical portion of the gypsum silo 200. Each intelligent air-sweeping device 120 includes a ball valve 128, a pulse solenoid valve 122, a one-way valve 124, and a pulse air-sweeping head 126 connected sequentially via pipelines. The air nozzle of the pulse air-sweeping head 126 faces the silo wall of the gypsum silo 200. The control device 130 includes a PLC controller 132, which is electrically connected to each pulse solenoid valve 122 for point-to-point independent start / stop control of each pulse solenoid valve 122. The PLC controller 132 is configured to execute two unblocking modes: independent cycle mode and simultaneous operation mode. In independent cycle mode, the pulse solenoid valves 122 are controlled to open sequentially in a preset order. In simultaneous operation mode, all or some of the pulse solenoid valves 122 are controlled to open simultaneously.

[0016] Thus, the air source device 110 constitutes a stable and clean high-pressure air supply station for the system, the air compressor 112 provides efficient and energy-saving power, the air storage tank 114 is used to stabilize air pressure and store energy, and the refrigerated dryer 116 and filter 118 ensure that the supplied compressed air is dry and free of impurities, preventing subsequent pipelines and components from freezing or becoming blocked. Multiple intelligent air sweeping devices 120 evenly distributed around the circumference constitute the execution unit, used as a modular design. Among them, the ball valve 128 is used for maintenance isolation, the pulse solenoid valve 122 is the core high-speed switch, the one-way valve 124 prevents material backflow, and the pulse air sweeping head 126 finally applies the kinetic energy of the gas to the wall of the gypsum silo 200, thereby achieving a precise and powerful impact on the silo wall. In addition, the PLC controller 132 independently controls each pulse solenoid valve 122 point-to-point, and combines two preset modes: independent cycle mode and simultaneous working mode. The independent cycle mode is characterized by prevention, low intensity, and global coverage, while the simultaneous working mode is characterized by dealing with severe blockages, high intensity, and centralized processing. This enables the gypsum silo intelligent anti-blockage air sweeping system 100 to intelligently switch the blockage clearing mode according to the actual working conditions, realizing the transformation from passive response to active prevention, and from extensive control to precise effect, thereby significantly improving the blockage clearing efficiency and reliability, while reducing energy consumption and equipment wear.

[0017] Compared with existing technologies, the gypsum silo intelligent anti-clogging air sweeping system 100 provided in this application has the following advantages: First, it has high cleaning efficiency and significant effect. It uses high-pressure gas pulses to directly act on the caking interface, resulting in high energy utilization and effectively solving the problems of gypsum adhesion and caking. Second, the system has high reliability and low maintenance cost. It abandons the mechanical rapping mechanism with a high failure rate and adopts non-contact cleaning, avoiding equipment damage. The modular design facilitates maintenance. Third, it has intelligent and flexible control. Through point-to-point independent control and multi-mode collaboration, it can accurately and flexibly select the optimal cleaning strategy according to the actual clogging situation. Fourth, it is energy-saving, environmentally friendly, and highly automated. The air compressor 112 has a significant energy-saving effect, and the system can achieve fully automatic operation, reducing manual intervention and costs.

[0018] Specifically, in existing wet desulfurization systems of thermal power plants, gypsum silos, serving as temporary storage facilities for dehydrated gypsum, tend to adhere to the silo walls due to the properties of the gypsum removed by the dewatering machine, causing difficulties in gypsum discharge. This discharge problem has long plagued the stable operation of the industry. Traditional solutions mainly rely on mechanical vibrators or manual tapping to periodically shake off the hardened gypsum from the silo walls. While widely used, these methods have significant drawbacks. The impact force generated by the vibrator is transmitted in the form of mechanical waves, resulting in low energy utilization. Furthermore, long-term impact can easily damage the silo walls and even crack the vibrator's base, leading to a high failure rate and huge maintenance costs. In cases of severe blockage, manual tapping remains a high-risk, low-efficiency operation, not only wasting manpower but also severely impacting the gypsum transportation schedule, placing dual pressure on the environmental and economic operation of power plants. In addition, pneumatic unclogging solutions exist, but existing pneumatic systems often suffer from complex structures, inefficient control, and limited unclogging modes. For example, they may employ complex multi-tank and pneumatic butterfly valve systems, or only achieve simple sequential start-stop operations, failing to provide precise, efficient, and energy-saving unclogging based on the actual gypsum compaction condition. Therefore, there is an urgent need for a gypsum silo anti-clogging system with good unclogging performance, high system reliability, and the ability to intelligently adjust its unclogging strategy according to operating conditions. This would ensure the continuous and stable operation of the desulfurization system, reduce maintenance costs, and improve the equipment's intelligence level.

[0019] To address the shortcomings of existing technologies, such as Figure 1 and Figure 2As shown, the intelligent anti-clogging air sweeping system 100 for gypsum silos provided in this application achieves precise, efficient, and intelligent proactive anti-clogging and unclogging through the coordinated operation of the air source device 110, the intelligent air sweeping device 120, and the control device 130. In the efficient proactive unclogging scenario, the air sweeping device is supplied with air by a single air source device 110. Through multiple pulse air sweeping heads 126 evenly distributed in a ring at the lower cone of the gypsum silo 200, high-pressure gas is directly injected into the interface between the material and the silo wall in the form of short pulses, forming a highly efficient "air shovel" effect. This results in high energy utilization and no equipment damage, fundamentally solving the problems of poor mechanical vibration effect and easy failure. In the scenario of precise intelligent control, the core PLC controller 132 of the control device 130 implements point-to-point independent control of the pulse solenoid valve 122 of each air sweeping unit, breaking through the limitations of traditional group or hierarchical control. Based on this, it integrates two unblocking modes: an "independent circulation mode" for routine prevention and a "simultaneous working mode" for severe clogging. These modes can be flexibly selected and switched according to the actual blockage situation, achieving a leap from "without control" to "how to control intelligently," significantly improving unblocking efficiency and energy saving. In the scenario of system integration and reliability, this system adopts a simple and efficient air source chain of "air compressor 112, air tank 114, and refrigerated dry filter 118," eliminating the complex control air circuits and redundant valves found in existing technologies. This greatly simplifies the system structure, reduces failure points, and significantly enhances operational reliability and maintainability.

[0020] In some embodiments, optionally, such as Figure 1 As shown, multiple intelligent air sweeping devices 120 are arranged in a horizontal ring at least twice within a 1-meter height range of the lower conical part of the gypsum box 200.

[0021] Specifically, such as Figure 1 As shown, this arrangement precisely covers the critical area of ​​the gypsum silo 200 most prone to wall adhesion and caking, namely the conical section above the discharge port. The use of at least two rings ensures that the pulse air sweeping heads 126 form an effective coverage network in both the axial and radial directions. When the system is operating, the airflows ejected from different heights and circumferential positions work together to create an interwoven, thorough impact cleaning surface on the silo wall, ensuring that both the initially formed adhesion layer and the caking gypsum blocks are effectively broken and peeled off, thus greatly improving the thoroughness and reliability of the unclogging process. This multi-layered ring layout is a crucial structural guarantee for achieving efficient and comprehensive unclogging.

[0022] In some embodiments, optionally, such as Figure 1 As shown, the total number of intelligent air sweeping devices 120 is 20 to 25 sets.

[0023] Specifically, such as Figure 1As shown, this quantity range is an optimized range determined through calculation and experimental verification, based on the specific structural dimensions of the lower conical section of the gypsum silo (e.g., a diameter of 6 meters) and the required unclogging coverage area. This quantity ensures that in the at least two ring-shaped layouts, the effective impact range (e.g., a circular cleaning surface with a diameter of 500mm~1000mm) formed by each pulse air sweep head 126 partially overlaps with the range of adjacent air sweep heads, thereby forming a continuous, dead-angle-free coverage network throughout the target area. 20 sets represent the minimum redundant configuration to guarantee basic unclogging effectiveness, while 25 sets provide a denser impact energy distribution and a higher upper limit for unclogging reliability. This quantity design achieves the best balance between unclogging effectiveness, system manufacturing cost, and compressed air consumption.

[0024] In some embodiments, optionally, such as Figure 1 As shown, the control device 130 also includes a human-machine interface 134 that is communicatively connected to the PLC controller 132. The human-machine interface 134 is used to set and display the cycle period of the independent cycle mode, the opening duration of the pulse solenoid valve 122, and to select the unblocking mode.

[0025] Specifically, such as Figure 1 As shown, the human-machine interface 134 (such as a touch screen) serves as the core interaction port between the system and the operator, greatly enhancing the system's operability and intelligence. Operators can intuitively set key operating parameters through the graphical interface without directly facing complex PLC programs: setting the cycle time for completing one full-bin cleaning in "independent circulation mode" based on the actual moisture content and viscosity of the gypsum; setting the pulse width (e.g., 0ms~500ms) for each pulse solenoid valve 122 to open based on the stubbornness of the caking; and switching between the preventative "independent circulation" mode and the powerful "simultaneous work" unclogging mode with a single click based on the current condition inside the bin. Simultaneously, the interface displays the system's working status, current mode, historical faults, and other information in real time. This design transforms professional control logic into intuitive user operation, significantly reducing the operating threshold and training costs, and ensuring that the system always operates with parameters most suitable for the current working conditions, thereby optimizing energy consumption and equipment wear while ensuring the best unclogging effect.

[0026] In some embodiments, the pulse solenoid valve 122 is optionally configured to have an adjustable opening duration in the range of 0 milliseconds to 500 milliseconds.

[0027] Specifically, the pulse solenoid valve 122, as the core actuator of the system, is crucial for efficient unclogging due to its rapid opening and closing characteristics. Its opening duration (i.e., pulse width) is adjustable within the range of 0 to 500 milliseconds, enabling the system to adapt precisely to different clogging conditions. When dealing with minor wall adhesion or for routine prevention, shorter pulses (e.g., 50 to 100 milliseconds) can be used to agitate the deposits on the bin walls with high frequency and low energy, achieving anti-clogging effects while minimizing compressed air consumption. When facing severe caking, longer pulses (e.g., 300 to 500 milliseconds) can be activated to release higher energy and create a stronger shock wave, effectively breaking and peeling away stubborn plaster blocks. This continuously adjustable capability, from "micro-impact" to "strong blasting," allows the unclogging mode to be precisely matched to the actual material adhesion strength and degree of caking, achieving an optimal balance between unclogging effectiveness and operational economy.

[0028] In some embodiments, optionally, such as Figure 1 As shown, the pulse air sweep head 126 is an alloy impact head structure.

[0029] Specifically, such as Figure 1 As shown, the pulse air sweeping head 126 is precision-machined from high-strength, high-wear-resistant alloy steel. This alloy impact head structure mainly comprises an internal flow channel and an erosion-resistant nozzle. Its core function is to withstand the high-frequency, high-pressure impact generated by the compressed air released instantaneously by the pulse solenoid valve 122, and to efficiently convert the gas pressure energy into concentrated forward kinetic energy. Compared to nozzles made of ordinary materials, the alloy impact head has extremely high structural strength and wear resistance, effectively resisting the erosion and wear of the nozzle by solid particles that may be entrained in the high-speed airflow, greatly extending the service life of the equipment. Simultaneously, its precise structural design ensures that the ejected airflow is concentrated and directionally stable, forming an effective circular cleaning surface on the chamber wall, thereby reliably breaking down the gypsum's hardened structure. This is a key component guaranteeing efficient, durable, and stable unclogging.

[0030] According to the second aspect of this application, such as Figure 3 As shown, embodiments of this application also propose an intelligent anti-clogging method for gypsum silos, used in the intelligent anti-clogging air sweeping system for gypsum silos as described in the above embodiments. The intelligent anti-clogging method for gypsum silos includes: setting anti-clogging parameters through a PLC controller, the anti-clogging parameters including anti-clogging mode selection, pulse interval, and pulse width; the PLC controller sends a control signal to a designated pulse solenoid valve according to the set anti-clogging mode, pulse interval, and pulse width; the pulse solenoid valve opens instantaneously according to the control signal, causing compressed air from the air source device to be ejected through the pulse air sweeping head, forming an impact airflow that acts on the silo wall to achieve anti-clogging or anti-clogging.

[0031] Specifically, such as Figure 3As shown, the intelligent anti-clogging method for gypsum silos provided in this application includes the following steps: S302. Set the unblocking parameters through the PLC controller. The unblocking parameters include unblocking mode selection, pulse interval and pulse width. The S304 and PLC controllers send control signals to the designated pulse solenoid valves according to the set unblocking mode, pulse interval, and pulse width. S306 The pulse solenoid valve opens instantaneously according to the control signal, so that compressed air from the air source device is ejected through the pulse air sweep head, forming an impact airflow that acts on the chamber wall to achieve clearing or preventing blockage.

[0032] Specifically, such as Figure 3 As shown, in step S302, the operator sets parameters through the human-machine interface based on the actual operating conditions of the gypsum silo (such as gypsum moisture content, historical blockage frequency, or current material level). The blockage clearing mode selection determines whether the system adopts an energy-saving, preventative independent circulation mode or a powerful, emergency simultaneous operation mode. The pulse interval determines the time interval between the actions of each air scavenging device in the independent circulation mode, affecting the frequency and rhythm of blockage clearing; the pulse width directly controls the duration and impact energy of each spray.

[0033] In step S304, the PLC, acting as the system's brain, executes core logic operations and control functions. Based on the instructions set in step S302, it generates precise, time-sequential electrical control signals. In independent loop mode, the PLC sequentially and pollutingly sends brief opening signals to each pulse solenoid valve according to a preset sequence and pulse interval; while in simultaneous operation mode, the PLC sends synchronous opening signals to all or some selected pulse solenoid valves. This step realizes the transformation of the unblocking solution from "parameter setting" to "instruction issuance," which is crucial for achieving precise point-to-point control.

[0034] In step S306, the pulse solenoid valve opens rapidly within milliseconds after receiving an electrical signal from the PLC. Dry, high-pressure compressed air stored in the air tank instantly flows through the pipeline, passes through the opened solenoid valve and check valve, and is finally ejected by the alloy pulse air head. This high-speed airflow forms a strong shock wave that directly acts on the gypsum silo wall, effectively breaking the adhesion between the wet gypsum and the silo wall, crushing and peeling off the hardened gypsum, thereby achieving efficient unblocking or preventative anti-blocking.

[0035] Thus, the above three steps constitute a complete, closed-loop intelligent anti-clogging control process. This method closely integrates the operator's experience (through parameter settings) with automated control technology (PLC program) and highly reliable actuators (pulse solenoid valves and air sweeping heads), enabling the system to proactively adapt to different working conditions. With the lowest energy consumption and the most precise method, it achieves a fundamental shift from "passively handling blockages" to "actively preventing blockages," ultimately ensuring the stable and continuous operation of the gypsum silo.

[0036] In some embodiments, optionally, such as Figure 3 As shown, the unblocking mode includes independent circulation mode and simultaneous working mode; when the independent circulation mode is selected, the PLC controller controls each pulse solenoid valve to open sequentially according to a preset order and time interval, so as to realize the circumferential and axial cyclic cleaning of the gypsum silo.

[0037] Specifically, such as Figure 3 As shown, in independent cycle mode, the PLC controller, according to a preset logic program, controls multiple sets of pulse solenoid valves arranged in a ring to be activated sequentially in a specific order (e.g., clockwise or counterclockwise) and at adjustable time intervals (e.g., 5 seconds to 30 seconds). This process causes compressed air pulses to advance in an orderly, wave-like manner along the circumference and axial direction of the lower cone of the gypsum silo. When each pulse air sweeping head is activated, it forms an effective impact cleaning surface with a diameter of 500mm to 1000mm in the area of ​​the silo wall in front of it. This sequential, zoned cleaning method can systematically and thoroughly destroy the initial adhesion and hardening tendency of gypsum on the entire cone-shaped silo wall, achieving comprehensive preventive maintenance; it also avoids the huge instantaneous load on the air source system caused by the simultaneous operation of all air sweeping devices, allowing a smaller air source device to support the stable operation of the entire system, significantly reducing equipment investment and operating energy consumption. This mode is the core of achieving intelligent, low-power, and routine anti-clogging.

[0038] In some embodiments, optionally, such as Figure 3 As shown, when the simultaneous working mode is selected, the PLC controller controls all or some of the pulse solenoid valves to open simultaneously, performing high-intensity centralized unblocking of the gypsum silo.

[0039] Specifically, such as Figure 3As shown, when the system detects severe caking or requires emergency handling, the operator selects "Simultaneous Operation Mode" through the human-machine interface. In this mode, the PLC controller sends synchronous opening commands to all or designated zones of the pulse solenoid valves. This causes multiple pulse air heads positioned at different circumferential and axial locations in the lower cone of the gypsum silo to simultaneously eject high-pressure airflow. These airflow pulses superimpose and work synergistically within the silo space, instantly forming a high-intensity, full-coverage shockwave network across the entire target area. This concentrated energy clearing method generates a powerful combined force far exceeding the effect of a single device, sufficient to break and peel away stubborn caking gypsum blocks that are difficult to handle in independent circulation modes. This achieves rapid and powerful removal of severely clogged areas, ensuring reliable system operation even under extreme conditions. This mode, together with the independent circulation mode, constitutes a complete solution for the system to address different degrees of caking.

[0040] In some embodiments, optionally, such as Figure 4 As shown, the intelligent anti-clogging method for gypsum silos also includes: dynamically adjusting the unclogging parameters based on the humidity or viscosity characteristics of gypsum.

[0041] Specifically, such as Figure 4 As shown, the intelligent anti-clogging method for gypsum silos provided in this application includes the following steps: S402. Set the unblocking parameters through the PLC controller. The unblocking parameters include unblocking mode selection, pulse interval and pulse width. The S404 and PLC controllers send control signals to the designated pulse solenoid valves according to the set unblocking mode, pulse interval, and pulse width. S406 The pulse solenoid valve opens instantaneously according to the control signal, so that compressed air from the air source device is ejected through the pulse air sweep head, forming an impact airflow that acts on the bin wall to achieve clearing or preventing blockage. S408. Based on the moisture or viscosity characteristics of gypsum, dynamically adjust the unclogging parameters.

[0042] Specifically, the system can collect material characteristic data in real time through humidity or viscosity sensors deployed in the gypsum silo or upstream dehydration system, and transmit this data to the PLC controller. The PLC controller has a pre-built expert database of unclogging parameters based on extensive operational experience. This database defines the optimal unclogging mode, pulse interval, and pulse width combinations for different humidity or viscosity ranges. When increased humidity or viscosity of the gypsum is detected, the system automatically triggers parameter adjustment modes, such as switching from a preventative independent cycle mode to a more aggressive unclogging mode, appropriately shortening the pulse interval to increase the unclogging frequency, and possibly extending the pulse width to enhance the energy of a single impact. Conversely, when material characteristics improve, the system automatically reverts to more economical operating parameters. This dynamic feedback adjustment method based on material characteristics allows the system to break free from fixed timing control, truly achieving precise and adaptive control of unclogging intensity and frequency. While ensuring anti-clogging effectiveness, it further optimizes compressed air consumption, demonstrating the system's high level of intelligence.

[0043] In the description of this application, the term "multiple" refers to two or more. Unless otherwise expressly defined, the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. The terms "connection," "installation," "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0044] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. 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.

[0045] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A kind of intelligent anti-blocking air sweeping system of gypsum warehouse, it is characterized in that, The gypsum warehouse intelligent anti-blocking air sweeping system comprises: an air source device comprising, in sequence through pipelines, an air compressor, an air storage tank, a cold dryer and a filter; a plurality of intelligent air sweeping devices, which are circumferentially and uniformly distributed on the inner wall of the lower conical part of the gypsum warehouse, each of the intelligent air sweeping devices comprising, in sequence through pipelines, a ball valve, a pulse electromagnetic valve, a one-way valve and a pulse air sweeping head; the air outlet of the pulse air sweeping head is arranged towards the wall of the gypsum warehouse; a control device comprising a PLC controller, which is electrically connected with each pulse electromagnetic valve and is used for point-to-point independent start-stop control of each pulse electromagnetic valve; wherein the PLC controller is configured to be capable of executing two kinds of cleaning modes of independent cycle mode and simultaneous operation mode; the independent cycle mode is to control each pulse electromagnetic valve to be opened in sequence at a preset interval; and the simultaneous operation mode is to control all or part of the pulse electromagnetic valves to be opened at the same time.

2. The intelligent anti-airlock scanning system for gypsum bin according to claim 1, characterized in that, The plurality of intelligent air sweeping devices are arranged in at least two circles in a horizontal annular manner within a range of 1 meter in height of the lower conical part of the gypsum warehouse.

3. The intelligent anti-airlock scanning system for gypsum bin according to claim 2, characterized in that, The total number of the intelligent air sweeping devices is 20-25 sets.

4. The intelligent anti-air-pocket scanning system for gypsum bin of claim 1, wherein, The control device further comprises a man-machine interaction interface in communication connection with the PLC controller, which is used for setting and displaying the cycle period of the independent cycle mode, the opening time length of the pulse electromagnetic valve and selecting the cleaning mode.

5. The intelligent anti-air-pocket scanning system for gypsum bin of claim 1, wherein, The pulse electromagnetic valve is configured to have an adjustable opening time length in a range of 0-500 milliseconds.

6. The intelligent anti-air-pocket scanning system for gypsum bin of claim 1, wherein, The pulse air sweeping head is of an alloy impact head structure.

7. A method for intelligent anti-blocking of a gypsum bin, characterized in that, The gypsum warehouse intelligent anti-blocking method for the gypsum warehouse intelligent anti-blocking air sweeping system as claimed in any one of claims 1-6 comprises: setting cleaning parameters through the PLC controller, the cleaning parameters comprising cleaning mode selection, pulse interval and pulse width; the PLC controller sending a control signal to a designated pulse electromagnetic valve according to the set cleaning mode, pulse interval and pulse width; the pulse electromagnetic valve being opened instantaneously according to the control signal, so that compressed air from the air source device is sprayed through the pulse air sweeping head to form an impact air flow acting on the wall of the gypsum warehouse, thereby realizing cleaning or anti-blocking.

8. The gypsum warehouse intelligent anti-blocking method according to claim 7, wherein the cleaning mode comprises independent cycle mode and simultaneous operation mode; when the independent cycle mode is selected, the PLC controller controls each pulse electromagnetic valve to be opened in sequence at a preset interval, thereby realizing circumferential and axial cycle cleaning of the gypsum warehouse.

9. The intelligent anti-blocking method for gypsum bin according to claim 8, characterized in that, when the simultaneous operation mode is selected, the PLC controller controls all or part of the pulse electromagnetic valves to be opened at the same time, thereby realizing high-intensity concentrated cleaning of the gypsum warehouse.

10. The gypsum warehouse intelligent anti-blocking method according to claim 7, wherein the gypsum warehouse intelligent anti-blocking method further comprises dynamically adjusting the cleaning parameters based on the humidity or viscosity characteristics of gypsum.

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