A multi-mechanism intelligent arch breaking and stable conveying method for dry powder denitration agent pneumatic conveying

Abstract

This invention proposes a multi-mechanism intelligent arch-breaking and stable conveying method for pneumatic conveying of dry powder denitrification agents. The method includes: collecting multi-dimensional monitoring data on the powder state and environmental parameters of the dry powder denitrification agent in the silo; assessing the risk level of bridging or caking based on the data and preset rules; triggering a combination of at least two arch-breaking mechanisms to break the arch based on the risk level and powder characteristics; real-time adjustment of execution parameters to break the caking powder to a preset particle size suitable for pneumatic conveying; and coordinating with the pneumatic conveying system to stably convey the powder to the denitrification operation end. This invention achieves coordinated operation of arch breaking and conveying, significantly improving the material flow rate, reducing arch breaking energy consumption, precisely controlling powder particle size, adapting to various denitrification scenarios, and ensuring a continuous and stable supply of denitrification agents.

Description

Technical Field

[0001] This invention relates to the field of environmental protection equipment and powder material conveying technology, and in particular to a multi-mechanism intelligent arch-breaking and stable conveying method for pneumatic conveying of dry powder denitrification agent. Background Technology

[0002] In denitrification processes such as selective non-catalytic reduction and selective catalytic reduction, the continuous and stable pneumatic conveying of dry powder ammonia denitrification agents is the core link to ensure the normal operation of the boiler denitrification system. Due to their strong hygroscopicity, high particle adhesion, and poor flowability, dry powder denitrification agents such as urea and ammonium bicarbonate are prone to bridging and caking when left still in the silo or when the ambient humidity changes, causing interruption of material feeding and directly affecting the denitrification efficiency and the continuity of production operations.

[0003] Powder arch breaking and stable conveying is a key technology in the pneumatic conveying of dry powder denitrification agents. Existing technologies mainly employ single arch breaking mechanisms such as mechanical vibration, air jetting, and rotary shearing. Although some solutions attempt to combine arch breaking methods, they still use open-loop preset control modes. Specifically, existing arch breaking technologies achieve powder crushing through a single actuator, control the start and stop of the arch breaking action through simple parameter settings, and directly link the pneumatic conveying system to convey the denitrification agent after crushing. This covers core aspects such as coarse state detection, fixed-mode arch breaking, and unadaptive conveying control. However, existing dry powder denitrification agent arch-breaking and stable delivery solutions directly adopt a single arch-breaking mechanism or a combination of arch-breaking methods without intelligent adaptation. They do not dynamically adjust the arch-breaking strategy based on the real-time state of the powder and environmental changes. At the same time, they lack precise control over the particle size of the powder and coordinated regulation of arch-breaking and delivery. This may lead to problems such as poor arch-breaking effect, excessive powder crushing, and low material flow rate. Ineffective arch-breaking actions may also cause high energy consumption and accelerated equipment wear, thereby affecting the stability and economy of dry powder denitrification agent delivery, restricting the reliable operation of the denitrification system and the efficient implementation of environmental protection operations. Summary of the Invention

[0004] The present invention aims to at least partially solve one of the technical problems in the related art.

[0005] Therefore, the first objective of this invention is to propose a multi-mechanism intelligent arch-breaking and stable conveying method for pneumatic conveying of dry powder denitrification agents.

[0006] Another objective of this invention is to propose a multi-mechanism intelligent arch-breaking and stable conveying device for pneumatic conveying of dry powder denitrification agent.

[0007] The third objective of this invention is to provide a computer device.

[0008] The fourth objective of this invention is to provide a non-transitory computer-readable storage medium.

[0009] To achieve the above objectives, a first aspect of the present invention proposes a multi-mechanism intelligent arch-breaking and stable conveying method for pneumatic conveying of dry powder denitrification agents, comprising:

[0010] S1, collect the powder state parameters of the dry powder denitrification agent in the silo and the environmental parameters in the silo to form multi-dimensional monitoring data; S2, Based on the multi-dimensional monitoring data, and combined with preset judgment rules, assess the risk level of bridging or caking of dry powder denitrification agent in the silo; S3, based on the risk level obtained from the assessment and the powder characteristics of the dry powder denitrification agent itself, select and trigger a combination of at least two arch-breaking mechanisms to carry out arch-breaking operations; S4, adjust the relevant execution parameters of the arch-breaking operation in real time according to the powder crushing state, so that the caking dry powder denitrification agent is crushed to the preset particle size that meets the requirements of the pneumatic conveying process. S5, in conjunction with the pneumatic conveying system, continuously and stably conveys the crushed dry powder denitrification agent that meets the particle size requirements to the denitrification operation end, realizing the coordinated operation of arch breaking and conveying.

[0011] In one embodiment of the present invention, the powder state parameters of the dry powder denitrification agent in the silo and the environmental parameters in the silo are collected to form multi-dimensional monitoring data, including: The powder state parameters include material level, moisture content, torque, and vibration spectrum; the environmental parameters are the temperature parameters inside the silo. Each parameter is collected by deploying corresponding sensing devices at different heights, cone sections, and key operating components of the silo. The collected raw data is converted into the multi-dimensional monitoring data.

[0012] In one embodiment of the present invention, the step of assessing the bridging or caking risk level of the dry powder denitrification agent in the silo based on the multi-dimensional monitoring data and in conjunction with preset judgment rules includes: Preprocessing of multi-dimensional monitoring data, including filtering, deduplication, and normalization, removes abnormal monitoring data; The pre-processed valid data is input into the preset risk assessment model, and the bridging or caking risk is determined by combining the characteristic thresholds of powder bridging and caking. The risk levels are low, medium and high.

[0013] In one embodiment of the present invention, the step of selecting and triggering a combination of at least two arch-breaking mechanisms to carry out the arch-breaking operation based on the assessed risk level and the powder characteristics of the dry powder denitrification agent includes: The arch-breaking mechanisms include mechanical vibration, air jetting, and rotational shearing. The combination of these mechanisms is determined by the risk level. The combined actions can be executed synchronously according to a preset sequence or in stages. Under high-risk conditions, combined actions involving all arch-breaking mechanisms will be activated.

[0014] In one embodiment of the present invention, the step of real-time adjustment of relevant execution parameters for the anti-bridging operation based on the powder crushing state to crush the caking dry powder denitrification agent to a preset particle size that meets the requirements of the pneumatic conveying process includes: The frequency and amplitude of mechanical vibration, the pressure and angle of air jet, the rotational speed and shearing depth of rotary shear, and the duration of action of each arch-breaking mechanism are all controlled. The principle of adjusting the execution parameters is to gradually break down the powder without causing excessive grinding.

[0015] In one embodiment of the present invention, the linkage with the pneumatic conveying system to continuously and stably convey the crushed dry powder denitrification agent that meets the particle size requirements to the denitrification operation end, realizing the coordinated operation of arch breaking and conveying, includes: The completion point of the arch breaking operation is determined by real-time detection of the powder particle size at the silo outlet, and the pneumatic conveying system is triggered at the point. Simultaneously, the flow and pressure parameters of the pneumatic conveying system are monitored in real time, and the power of the conveying fan and the opening of the flow regulating valve are dynamically adjusted based on the monitoring results to ensure conveying stability.

[0016] In one embodiment of the present invention, it further includes: The entire process of arch-breaking operation is recorded, including execution parameters, action sequence, energy consumption data, and conveying effect data such as the smoothness of conveying dry powder denitrification agent and particle size qualification rate. Based on the effect data, the matching rules of the feature thresholds of the risk assessment model and the arch breaking mechanism are iteratively optimized to achieve self-learning and intelligent upgrading of the arch breaking operation.

[0017] To achieve the above objectives, a second aspect of the present invention provides a multi-mechanism intelligent arch-breaking and stabilizing conveying device for pneumatic conveying of dry powder denitrification agent, comprising: The parameter acquisition module is used to collect the powder state parameters of the dry powder denitrification agent in the silo and the environmental parameters in the silo to form multi-dimensional monitoring data; The risk assessment module is used to assess the risk level of bridging or caking of dry powder denitrification agent in the silo based on the multi-dimensional monitoring data and in combination with preset judgment rules. The arch-breaking trigger module is used to select and trigger a combination of at least two arch-breaking mechanisms to carry out arch-breaking operations based on the assessed risk level and the powder characteristics of the dry powder denitrification agent itself. The parameter control module is used to adjust the relevant execution parameters of the arch-breaking operation in real time according to the powder crushing state, so that the caking dry powder denitrification agent is crushed to the preset particle size that meets the requirements of the pneumatic conveying process. The conveying linkage module is used to link with the pneumatic conveying system to continuously and stably convey the crushed dry powder denitrification agent that meets the particle size requirements to the denitrification operation end, realizing the coordinated operation of arch breaking and conveying.

[0018] This invention discloses a multi-mechanism intelligent arch-breaking and stable conveying method and device for pneumatic conveying of dry powder denitrification agent. It realizes intelligent judgment of bridging and caking of dry powder denitrification agent silos and efficient arch-breaking through multiple mechanisms, as well as precise particle size control and continuous and stable pneumatic conveying of denitrification agent. This improves the material flow rate and arch-breaking operation efficiency, reduces arch-breaking energy consumption and equipment wear, enhances the system's adaptability to multiple working conditions and powder characteristics, and fully meets the needs of stable supply of denitrification agent and efficient environmental protection operations in various denitrification scenarios such as coal combustion, waste incineration, biomass, and marine applications.

[0019] To achieve the above objectives, a third aspect of this application provides a computer device, including a processor and a memory; wherein the processor runs a program corresponding to the executable program code by reading executable program code stored in the memory, for implementing the method described in the first aspect embodiment.

[0020] To achieve the above objectives, a fourth aspect of this application provides a non-transitory computer-readable storage medium having a computer program stored thereon that, when executed by a processor, implements the method described in the first aspect.

[0021] 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

[0022] Figure 1 This is a flowchart of a multi-mechanism intelligent arch-breaking and stable conveying method for pneumatic conveying of dry powder denitrification agent according to an embodiment of the present invention; Figure 2 This is a flowchart of the intelligent control process according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the system structure according to an embodiment of the present invention; Figure 4 This is a bar chart comparing the material feeding smoothness of the experimental group and the traditional group according to an embodiment of the present invention; Figure 5 This is a line graph comparing energy consumption according to an embodiment of the present invention; Figure 6 This is a structural diagram of a multi-mechanism intelligent arch-breaking and stabilizing conveying device for pneumatic conveying of dry powder denitrification agent according to an embodiment of the present invention; Figure 7 It is a computer device according to an embodiment of the present invention. Detailed Implementation

[0023] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0024] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0025] The following description, with reference to the accompanying drawings, describes a multi-mechanism intelligent arch-breaking and stable conveying method and apparatus for pneumatic conveying of dry powder denitrifying agent according to embodiments of the present invention.

[0026] Figure 1 This is a flowchart of a multi-mechanism intelligent arch-breaking and stable conveying method for pneumatic conveying of dry powder denitrification agent according to an embodiment of the present invention, such as... Figure 1 and Figure 2 As shown, it includes: S1, collect the powder state parameters of the dry powder denitrification agent in the silo and the environmental parameters in the silo to form multi-dimensional monitoring data; Specifically, this step involves deploying various types of sensors at different heights, conical sections, and key operating components within the silo to collect real-time powder state parameters (powder level, moisture content, torque, vibration spectrum) and environmental parameters (temperature) of the dry powder denitrification agent. This provides fundamental data support for subsequent risk assessment. To eliminate dimensional differences between different types of parameters and improve data comparability and calculation accuracy, the collected raw data undergoes normalization preprocessing to form standardized multi-dimensional monitoring data. The core formula for normalization calculation is:

[0027] In the formula: For the first The normalized value of the class parameter, with a range of values. ; For the first The actual collected values ​​of the class parameters; , For the first The parameters are preset with minimum and maximum process thresholds based on the characteristics of the dry powder denitrification agent and process requirements.

[0028] S2, Based on the multi-dimensional monitoring data, and combined with preset judgment rules, assess the risk level of bridging or caking of dry powder denitrification agent in the silo; Specifically, this step uses standardized multi-dimensional monitoring data as input, combined with the weight distribution of influencing factors on bridging and caking of dry powder denitrification agents, to construct a comprehensive evaluation model for bridging / caking risk levels. By quantitatively calculating the comprehensive risk evaluation value, a scientific determination of the risk level of powder bridging and caking within the silo is achieved. The core formula for calculating the comprehensive risk evaluation value is:

[0029] In the formula: This is the comprehensive risk level assessment value, with a range of values ​​ranging from [value missing]. ; The weighting coefficients for parameters such as material level, moisture content, temperature, torque, and vibration spectrum satisfy the following conditions: Based on the influence of each parameter on powder bridging and caking, preset... ; These are the normalized values ​​for material level, moisture content, temperature, torque, and vibration spectrum, respectively.

[0030] The risk levels are divided into three levels based on the comprehensive evaluation value. The specific rules are as follows: Low risk Medium risk High risk This provides a quantitative basis for the selection of subsequent arch-breaking mechanism combinations.

[0031] S3, based on the risk level obtained from the assessment and the powder characteristics of the dry powder denitrification agent itself, select and trigger a combination of at least two arch-breaking mechanisms to carry out arch-breaking operations; Specifically, this step, based on the assessed risk level and considering the powder characteristics of the dry powder denitrification agent (particle size, moisture content, flowability, etc.), selects at least two of the three arch-breaking mechanisms—mechanical vibration, air jet, and rotary shear—to form a combined action. By quantitatively calculating the overall combined arch-breaking intensity, the operational intensity ratio and operational threshold of each arch-breaking execution unit are determined, thereby triggering the corresponding intensity of the combined arch-breaking operation. The core formula for calculating the overall combined arch-breaking intensity is:

[0032] In the formula: The combined arch-breaking strength is dimensionless; The vibration intensity of the mechanical vibration element, with a value range of [value range missing]. ; The jet intensity of the airflow injection unit, with a value range of [value range missing]. ; The shear strength of the rotating shear element, with a value range of [value missing]. ; The proportioning coefficients for each arch-breaking mechanism satisfy... Preset under high-risk level For medium and low risk levels, the mixing ratio can be dynamically adjusted according to the characteristics of the powder.

[0033] S4, adjust the relevant execution parameters of the arch-breaking operation in real time according to the powder crushing state, so that the caking dry powder denitrification agent is crushed to the preset particle size that meets the requirements of the pneumatic conveying process. Specifically, this step involves real-time monitoring of the powder's crushing state within the silo. It dynamically adjusts relevant execution parameters for the arch-breaking operation from two dimensions: particle size qualification rate determination and arch-breaking time control. This ensures that the caking dry powder denitrification agent is broken down to the preset particle size required by the pneumatic conveying process. First, the particle size qualification rate is calculated using a formula to determine if the powder crushing meets the standards. The core formula is:

[0034] In the formula: The qualified rate of powder particle size is %; Particle size after crushing The number of qualified particles; The total number of powder particles after crushing is given. Based on the requirements of the pneumatic conveying process, the preset particle size threshold is [value missing]. .

[0035] If the powder particle size does not meet the qualified threshold, the time of the arch-breaking action is adjusted based on the risk level and the combined arch-breaking strength using the following formula. The core calculation formula is as follows:

[0036] In the formula: The actual time for arch breaking is measured in seconds. The basic arch-breaking time is preset based on the basic characteristics of the dry powder denitrification agent, and the value is 5~10s; This is the comprehensive risk level evaluation value calculated in S2; The combined arch-breaking strength calculated in S3 is the combined arch-breaking strength.

[0037] S5, in conjunction with the pneumatic conveying system, continuously and stably conveys the crushed dry powder denitrification agent that meets the particle size requirements to the denitrification operation end, realizing the coordinated operation of arch breaking and conveying.

[0038] Specifically, after determining that the powder particle size meets the preset requirements for pneumatic conveying, this step immediately triggers the start of the pneumatic conveying system. By establishing a quantitative matching relationship between the combined arch-breaking strength and the pneumatic conveying flow rate, the parameters of the arch-breaking operation and pneumatic conveying are coordinated and controlled to ensure the continuous and stable delivery of the dry powder denitrification agent to the denitrification operation end. The core formula for matching flow rate and strength is:

[0039] In the formula: The rated flow rate of the pneumatic conveying system is m³ / h. The flow-intensity matching coefficient is dynamically set to 5~10 based on the flowability of the dry powder denitrification agent; The combined arch-breaking strength calculated in S3 is the combined arch-breaking strength.

[0040] If the conveying pressure is monitored in real time during the conveying process. Based on the above matching formula, the pneumatic conveying flow rate will be automatically reduced, and the combined arch-breaking strength will be finely adjusted simultaneously to avoid conveying failures caused by excessive conveying pressure, thus achieving full-process coordinated operation of arch breaking and conveying.

[0041] In one embodiment of the present invention, as follows Figure 3 As shown, the multi-mechanism execution unit integrates a vibration generation unit (electromagnetic / piezoelectric ceramic), an airflow jet unit (ring array jet), and a rotary shearing unit (variable diameter spiral / blade), which can operate individually or in combination. A multi-parameter sensing module collects data such as material level, moisture content, temperature, torque, and vibration spectrum. The intelligent control unit determines the bridging / caking risk level based on the sensed data, matches powder characteristics, dynamically selects the combination and intensity of the arch-breaking mechanism, and controls the crushed particle size. It is linked with pneumatic conveying: conveying is started immediately after crushing to avoid secondary caking. Energy-saving design: waste heat from the boiler can be used as a gas source, and piezoelectric ceramic drive reduces power consumption.

[0042] The embodiments of this invention also have the following technical advantages: Arch breaking success rate ≥99% (under experimental conditions), and material flow rate increased from 75% of traditional devices to ≥98%. Energy consumption is reduced by 20%~30% compared to single high-pressure airflow arch breaking. It is applicable to a wide range of powder particle sizes (100μm~1mm), moisture content 0~10%, and temperature variations -10℃~80℃. The modular structure is compact, facilitating installation and maintenance in distributed or marine applications.

[0043] In one embodiment of the present invention, the device of the present invention is installed in the SNCR system of a 300MW coal-fired power unit. The silo has a volume of 5m³ and stores urea granules (particle size 100~300μm). Figure 4 , Figure 5 As shown in Table 1.

[0044] Control group: Traditional single electromagnetic vibration arch breaking (fixed frequency 80Hz).

[0045] Experimental group: The multi-mechanism intelligent arch-breaking system of this invention (vibration + airflow + shear, intelligent mode switching).

[0046] Test conditions: Ambient humidity 60%, conveyor started after the silo has been stationary for 24 hours. Record the number of material interruptions, arch breaking response time, conveyor flow stability, and unit energy consumption.

[0047] Table 1

[0048] The experimental group maintained zero interruption even under harsh conditions of high humidity and long standing time, with fast arch breaking response, low energy consumption, and excellent particle size control, proving that multi-mechanism synergy and intelligent control significantly improve stability and energy efficiency.

[0049] To achieve the above embodiments, such as Figure 6 As shown, this embodiment also provides a multi-mechanism intelligent arch-breaking and stabilizing conveying device 10 for pneumatic conveying of dry powder denitrification agent, comprising: The parameter acquisition module 100 is used to collect the powder state parameters of the dry powder denitrification agent in the silo and the environmental parameters in the silo to form multi-dimensional monitoring data. Risk assessment module 200 is used to assess the risk level of bridging or caking of dry powder denitrification agent in the silo based on the multi-dimensional monitoring data and in combination with preset judgment rules. The arch-breaking trigger module 300 is used to select and trigger a combination of at least two arch-breaking mechanisms to carry out arch-breaking operations based on the assessed risk level and the powder characteristics of the dry powder denitrification agent itself. The parameter control module 400 is used to adjust the relevant execution parameters of the arch-breaking operation in real time according to the powder crushing state, so that the caking dry powder denitrification agent is crushed to the preset particle size that meets the requirements of the pneumatic conveying process. The conveying linkage module 500 is used to link with the pneumatic conveying system to continuously and stably convey the crushed dry powder denitrification agent that meets the particle size requirements to the denitrification operation end, realizing the coordinated operation of arch breaking and conveying.

[0050] This invention discloses a multi-mechanism intelligent arch-breaking and stable conveying device for pneumatic conveying of dry powder denitrification agents. This device achieves intelligent judgment of bridging and caking in the dry powder denitrification agent silo, efficient arch-breaking through multiple mechanisms, precise particle size control of the denitrification agent, and continuous and stable pneumatic conveying. It improves material flow rate and arch-breaking efficiency, reduces energy consumption and equipment wear, enhances the system's adaptability to various working conditions and powder characteristics, and fully meets the needs for stable supply of denitrification agents and efficient environmental protection operations in various denitrification scenarios such as coal combustion, waste incineration, biomass, and marine applications.

[0051] To implement the methods of the above embodiments, the present invention also provides a computer device, such as... Figure 7 As shown, the computer device 600 includes a memory 601 and a processor 602; wherein, the processor 602 reads executable program code stored in the memory 601 to run a program corresponding to the executable program code, so as to implement the various steps of the method described above.

[0052] To implement the above embodiments, this application also proposes a non-transitory computer-readable storage medium storing a computer program thereon, which, when executed by a processor, implements the method described in the foregoing embodiments.

[0053] In the description of this specification, the 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 present 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. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0054] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

Claims

1. A multi-mechanism intelligent arch-breaking and stable conveying method for pneumatic conveying of dry powder denitrification agent, characterized in that, include: S1, collect the powder state parameters of the dry powder denitrification agent in the silo and the environmental parameters in the silo to form multi-dimensional monitoring data; S2, Based on the multi-dimensional monitoring data, and combined with preset judgment rules, assess the risk level of bridging or caking of dry powder denitrification agent in the silo; S3, based on the risk level obtained from the assessment and the powder characteristics of the dry powder denitrification agent itself, select and trigger a combination of at least two arch-breaking mechanisms to carry out arch-breaking operations; S4, adjust the relevant execution parameters of the arch-breaking operation in real time according to the powder crushing state, so that the caking dry powder denitrification agent is crushed to the preset particle size that meets the requirements of the pneumatic conveying process. S5, in conjunction with the pneumatic conveying system, continuously and stably conveys the crushed dry powder denitrification agent that meets the particle size requirements to the denitrification operation end, realizing the coordinated operation of arch breaking and conveying.

2. The method according to claim 1, characterized in that, The powder state parameters of the dry powder denitrification agent in the silo and the environmental parameters in the silo are collected to form multi-dimensional monitoring data, including: The powder state parameters include material level, moisture content, torque, and vibration spectrum; the environmental parameters are the temperature parameters inside the silo. Each parameter is collected by deploying corresponding sensing devices at different heights, cone sections, and key operating components of the silo. The collected raw data is converted into the multi-dimensional monitoring data.

3. The method according to claim 1, characterized in that, The assessment of the bridging or caking risk level of the dry powder denitrification agent in the silo based on the multi-dimensional monitoring data and preset judgment rules includes: Preprocessing of multi-dimensional monitoring data, including filtering, deduplication, and normalization, removes abnormal monitoring data; The pre-processed valid data is input into the preset risk assessment model, and the bridging or caking risk is determined by combining the characteristic thresholds of powder bridging and caking. The risk levels are low, medium and high.

4. The method according to claim 1, characterized in that, The process involves selecting and triggering a combination of at least two anti-bridging mechanisms to carry out anti-bridging operations based on the assessed risk level and the powder characteristics of the dry powder denitrification agent. This includes: The arch-breaking mechanisms include mechanical vibration, air jetting, and rotational shearing. The combination of these mechanisms is determined by the risk level. The combined actions can be executed synchronously according to a preset sequence or in stages. Under high-risk conditions, combined actions involving all arch-breaking mechanisms will be activated.

5. The method according to claim 1, characterized in that, The process of real-time adjustment of relevant execution parameters for the anti-bridging operation based on the powder crushing state to break up the caking dry powder denitrification agent to a preset particle size that meets the requirements of the pneumatic conveying process includes: The frequency and amplitude of mechanical vibration, the pressure and angle of air jet, the rotational speed and shearing depth of rotary shear, and the duration of action of each arch-breaking mechanism are all controlled. The principle of adjusting the execution parameters is to gradually break down the powder without causing excessive grinding.

6. The method according to claim 1, characterized in that, The system, linked with a pneumatic conveying system, continuously and stably delivers the crushed dry powder denitrification agent that meets the particle size requirements to the denitrification operation end, achieving coordinated operation of arch breaking and conveying, including: The completion point of the arch breaking operation is determined by real-time detection of the powder particle size at the silo outlet, and the pneumatic conveying system is triggered at the point. Simultaneously, the flow and pressure parameters of the pneumatic conveying system are monitored in real time, and the power of the conveying fan and the opening of the flow regulating valve are dynamically adjusted based on the monitoring results to ensure conveying stability.

7. The method according to claim 1, characterized in that, The method further includes: The entire process of arch-breaking operation is recorded, including execution parameters, action sequence, energy consumption data, and conveying effect data such as the smoothness of conveying dry powder denitrification agent and particle size qualification rate. Based on the effect data, the matching rules of the feature thresholds of the risk assessment model and the arch breaking mechanism are iteratively optimized to achieve self-learning and intelligent upgrading of the arch breaking operation.

8. A multi-mechanism intelligent arch-breaking and stabilizing conveying device for pneumatic conveying of dry powder denitrification agent, characterized in that, include: The parameter acquisition module is used to collect the powder state parameters of the dry powder denitrification agent in the silo and the environmental parameters in the silo to form multi-dimensional monitoring data; The risk assessment module is used to assess the risk level of bridging or caking of dry powder denitrification agent in the silo based on the multi-dimensional monitoring data and in combination with preset judgment rules. The arch-breaking trigger module is used to select and trigger a combination of at least two arch-breaking mechanisms to carry out arch-breaking operations based on the assessed risk level and the powder characteristics of the dry powder denitrification agent itself. The parameter control module is used to adjust the relevant execution parameters of the arch-breaking operation in real time according to the powder crushing state, so that the caking dry powder denitrification agent is crushed to the preset particle size that meets the requirements of the pneumatic conveying process. The conveying linkage module is used to link with the pneumatic conveying system to continuously and stably convey the crushed dry powder denitrification agent that meets the particle size requirements to the denitrification operation end, realizing the coordinated operation of arch breaking and conveying.

9. A computer device, characterized in that, Including processor and memory; The processor reads the executable program code stored in the memory to run the program corresponding to the executable program code, so as to implement the multi-mechanism intelligent arch-breaking and stable conveying method for pneumatic conveying of dry powder denitrification agent as described in any one of claims 1-7.

10. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that, When the program is executed by the processor, it implements a multi-mechanism intelligent arch-breaking and stable conveying method for pneumatic conveying of dry powder denitrification agent as described in any one of claims 1-7.

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