A rapid plasma ignition method and related apparatus for fan mill boilers with frequent start-stop cycles.

Abstract

This invention provides a rapid plasma ignition method and related apparatus for fan mill boilers with frequent start-stop operations, belonging to the field of coal-fired boiler ignition technology. The method includes: receiving a start-up command from the fan mill boiler and confirming the current boiler status; based on the boiler status, confirming a plasma ignition parameter package, the parameter package including target plasma power, carrier airflow, primary air header target pressure, and initial coal feed rate; preheating the plasma generator based on the plasma ignition parameter package; starting the coal mill after successful preheating of the plasma generator, and controlling the primary air pressure and coal feed rate at the coal mill outlet based on the plasma ignition parameter package; after the pulverized coal enters the burner, it is ignited using the plasma generator, completing the rapid plasma ignition of the fan mill boiler. This invention, by identifying the boiler status and calling the corresponding ignition parameter package, achieves rapid, stable, and automated ignition of the fan mill boiler under frequent start-stop conditions, shortening the ignition time, improving the ignition success rate, and reducing operator dependence and energy waste.

Description

Technical Field

[0001] This invention belongs to the field of coal-fired boiler ignition technology, and relates to a rapid plasma ignition method and related apparatus for fan mill boilers with frequent start-stop cycles. Background Technology

[0002] Currently, plasma ignition technology is widely used in coal-fired boilers. Its basic principle is to use a high-power electric arc to ionize air, forming a high-temperature plasma jet that directly ignites pulverized coal, thus replacing traditional oil ignition. This technology is relatively mature for boilers with intermediate storage pulverizing systems. However, the application of plasma ignition technology faces unique challenges for boilers using fan mill direct-fired pulverizing systems.

[0003] Conventional fan mill direct-fired pulverizing boiler ignition typically employs a manual, step-by-step operation: first, furnace purging and warm-up of the pulverizing system are completed; then, the plasma generator is started separately to initiate the arc; subsequently, the fan mill is started and the initial coal feed rate is manually set based on experience; after the pulverized coal enters the burner, operators repeatedly adjust the air, coal, and power parameters according to the flame conditions; and the load is gradually increased after combustion stabilizes. This entire process lacks automated coordination logic and heavily relies on human experience. This ignition process has the following drawbacks: (1) Long ignition time, not suitable for frequent start-stop; (2) The ignition success rate is unstable, and it is easy to cause deflagration or flameout; (3) Low level of automation, relying on the experience of operators; (4) The ignition time is long and the process is unstable, resulting in waste of electrical energy and fuel. Summary of the Invention

[0004] The purpose of this invention is to provide a rapid plasma ignition method and related apparatus for fan mill boilers with frequent start-stop cycles, thereby overcoming the aforementioned shortcomings in the prior art.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: In a first aspect, the present invention provides a rapid plasma ignition method for a fan mill boiler with frequent start-stop cycles, comprising the following steps: After receiving the start command for the fan mill boiler, confirm the current boiler status of the fan mill boiler; Based on the boiler status, the plasma ignition parameter package is confirmed, which includes the target plasma power, carrier air flow rate, primary air header target pressure and initial coal feed rate. The plasma generator is preheated based on the plasma ignition parameter package; After the plasma generator is successfully preheated, the coal mill is started, and the primary air pressure and coal feed rate at the coal mill outlet are controlled based on the plasma ignition parameter package. The pulverized coal entering the burner is ignited using a plasma generator, thus completing the rapid plasma ignition of the fan mill boiler.

[0006] Preferably, the current boiler status of the fan mill boiler is determined based on the boiler shutdown time or the steam drum wall temperature.

[0007] Preferably, the current boiler status of the fan mill boiler is determined based on the boiler shutdown time or the steam drum wall temperature. The specific method is as follows: When the boiler shutdown time exceeds the first time threshold or the steam drum wall temperature is less than the first temperature threshold, the boiler is currently in a cold state. When the boiler shutdown time is greater than or equal to the second time threshold and less than or equal to the first time threshold, or when the drum wall temperature is greater than or equal to the first temperature threshold and less than or equal to the second temperature threshold, the boiler is currently in a warm state. If the boiler shutdown time is less than the second time threshold or the steam drum wall temperature is greater than the second temperature threshold, then the boiler is currently in a hot state.

[0008] Preferably, the plasma ignition parameter package is confirmed based on the boiler status. Specifically, the method is as follows: If the boiler is currently in a cold state, the plasma power in the plasma ignition parameter package is 380-400kW, the carrier air flow rate is 120-150Nm³ / h, the primary air main pipe pressure is 4.5-5.0kPa, and the initial coal feed rate is 8-10t / h. If the boiler is currently in a warm state, the plasma power in the plasma ignition parameter package is 320~360kW, the carrier air flow rate is 100-120Nm³ / h, the primary air main pipe pressure is 4.0-4.5kPa, and the initial coal feed rate is 10-12t / h. If the boiler is currently in a hot state, the plasma power in the plasma ignition parameter package is 280-320kW, the carrier air flow rate is 80-100Nm³ / h, the primary air main pipe pressure is 3.5-4.0kPa, and the initial coal feed rate is 12-14t / h.

[0009] Preferably, after igniting the pulverized coal entering the burner using a plasma generator, the method further includes: Real-time acquisition of flame status to determine whether ignition was successful, including: If the flame remains stable within the preset time, ignition is successful; otherwise, ignition fails. If ignition fails, adjust the plasma ignition parameter package of the plasma igniter and try ignition again.

[0010] Preferably, if ignition fails, the plasma ignition parameter package of the plasma igniter is adjusted, and ignition is attempted again. The specific method is as follows: If there is no flame signal within 3 seconds after ignition, the plasma power will be increased first, while the opening of the primary air damper will be reduced. If the flame flickers but is not continuous, prioritize reducing the coal feed rate while increasing the carrier airflow. If the adjustment fails after 3 attempts: automatically cut off the coal feed, exit the plasma generator, perform furnace purging, and then restart the ignition process. The time interval between each adjustment should be greater than or equal to 10 seconds.

[0011] Secondly, the present invention provides a rapid plasma ignition system for a fan mill boiler with frequent start-stop cycles, comprising: The boiler status confirmation unit is used to confirm the current boiler status of the fan mill boiler after receiving the start command of the fan mill boiler. The parameter package confirmation unit is used to confirm the plasma ignition parameter package based on the boiler status. The plasma ignition parameter package includes the target plasma power, carrier air flow rate, primary air header target pressure, and initial coal feed rate. The plasma generator preheating control unit is used to control the preheating of the plasma generator based on the plasma ignition parameter package; The coal mill parameter control unit is used to start the coal mill after the plasma generator is successfully preheated, and to control the primary air pressure and coal feed rate at the coal mill outlet based on the plasma ignition parameter package. The plasma generator ignition control unit is used to control the plasma generator to ignite the pulverized coal entering the burner, thus completing the rapid plasma ignition of the fan mill boiler.

[0012] Thirdly, the present invention provides an electronic device including a processor and a memory, wherein the memory stores computer instructions, and when the computer instructions are executed by the processor, the electronic device performs the method described thereon.

[0013] Fourthly, the present invention provides a computer program product, the computer program product including computer-executable instructions, which, when executed, implement the method described.

[0014] Fifthly, the present invention provides a computer-readable storage medium storing computer-executable instructions that, when executed by a processor, implement the method described herein.

[0015] Compared with the prior art, the beneficial effects of the present invention are: This invention provides a rapid plasma ignition method for fan mill boilers with frequent start-stop operations. Upon receiving a start command, the method first confirms the boiler status, then selects a matching plasma ignition parameter package based on the boiler status (including target plasma power, carrier airflow, primary air header target pressure, and initial coal feed rate). Then, it sequentially executes plasma generator preheating, starts the coal mill, and controls the primary air pressure and coal feed rate. Finally, it ignites the pulverized coal to complete the ignition, thus achieving rapid plasma ignition for fan mill boilers operating under frequent start-stop conditions. Compared to existing ignition methods that rely on manual experience and have a universally applicable process, this method can automatically match ignition parameters according to different boiler statuses, avoiding repeated trial and error and manual adjustments. This significantly shortens ignition time, improves ignition success rate and safety, reduces reliance on operator experience, enhances automation, and reduces energy and fuel waste, adapting to the actual needs of frequent boiler start-stop operations in scenarios such as grid peak shaving. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the method flow involved in an embodiment of the present invention. Detailed Implementation

[0017] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that this application may also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods have been omitted so as not to obscure the description of this application with unnecessary detail.

[0018] It should be understood that, when used in this application specification and the appended claims, the term "comprising" indicates the presence of the described features, integrals, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or a collection thereof.

[0019] It should also be understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0020] As used in this application specification and the appended claims, the term "if" may be interpreted, depending on the context, as "when," "once," "in response to determination," or "in response to detection." Similarly, the phrase "if determined" or "if detected [the described condition or event]" may be interpreted, depending on the context, as meaning "once determined," "in response to determination," "once detected [the described condition or event]," or "in response to detection [the described condition or event]."

[0021] Furthermore, in the description of this application and the appended claims, the terms "first," "second," "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0022] References to "one embodiment" or "some embodiments" as described in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0023] Example 1 This embodiment provides a rapid plasma ignition system for a fan mill boiler with frequent start-stop cycles, comprising: The boiler status confirmation unit is used to confirm the current boiler status of the fan mill boiler after receiving the start command of the fan mill boiler. The parameter package confirmation unit is used to confirm the plasma ignition parameter package based on the boiler status. The plasma ignition parameter package includes the target plasma power, carrier air flow rate, primary air header target pressure, and initial coal feed rate. The plasma generator preheating control unit is used to control the preheating of the plasma generator based on the plasma ignition parameter package; The coal mill parameter control unit is used to start the coal mill after the plasma generator is successfully preheated, and to control the primary air pressure and coal feed rate at the coal mill outlet based on the plasma ignition parameter package. The plasma generator ignition control unit is used to control the plasma generator to ignite the pulverized coal entering the burner, thus completing the rapid plasma ignition of the fan mill boiler.

[0024] Example 2 Based on Embodiment 1, this embodiment provides a rapid plasma ignition system for a fan mill boiler with frequent start-stop cycles, which further includes a data acquisition unit, comprising: The flame detection component is used to detect flame information within the burner; The wind pressure sensor is used to collect the pressure information of the primary air main pipe; The air volume sensor is used to collect the primary air main duct flow information; The coal powder concentration monitoring component is used to collect the coal powder concentration at the coal mill outlet.

[0025] Example 3 like Figure 1 As shown in the figure, this embodiment provides a rapid plasma ignition method for fan mill boilers with frequent start-stop cycles, including the following steps: Step 1: After receiving the start command of the fan mill boiler, confirm the current boiler status of the fan mill boiler.

[0026] In this embodiment, the current state of the boiler is automatically identified as cold, warm, or hot based on the boiler shutdown time or the steam drum wall temperature.

[0027] Based on the identified boiler status, the corresponding plasma ignition parameter package is automatically retrieved from the preset parameter database. This plasma ignition parameter package contains preset values ​​for parameters such as target plasma power, carrier airflow, primary air header target pressure, and initial coal feed rate.

[0028] In this embodiment, the current state of the boiler—whether it is cold, warm, or hot—is automatically identified based on the boiler shutdown time or the steam drum wall temperature. The specific method is as follows: When the boiler shutdown time exceeds the first time threshold or the steam drum wall temperature is less than the first temperature threshold, the boiler is currently in a cold state. When the boiler shutdown time is greater than or equal to the second time threshold and less than or equal to the first time threshold, or when the drum wall temperature is greater than or equal to the first temperature threshold and less than or equal to the second temperature threshold, the boiler is currently in a warm state. If the boiler shutdown time is less than the second time threshold or the steam drum wall temperature is greater than the second temperature threshold, then the boiler is currently in a hot state.

[0029] In this embodiment, the first time threshold is 72h, the second time threshold is 12h; the first temperature threshold is 100℃, and the second temperature threshold is 300℃.

[0030] Step 2: Based on the boiler status, confirm the plasma ignition parameter package, which includes the target plasma power, carrier air flow rate, primary air header target pressure, and initial coal feed rate.

[0031] In this embodiment, based on the identified boiler status, the corresponding plasma ignition parameter package is automatically retrieved from a preset parameter database. Specifically, the method is as follows: If the boiler is currently in a cold state, the plasma power in the plasma ignition parameter package is 380-400kW, the carrier air flow rate is 120-150Nm³ / h, the primary air main pipe pressure is 4.5-5.0kPa, and the initial coal feed rate is 8-10t / h. If the boiler is currently in a warm state, the plasma power in the plasma ignition parameter package is 320~360kW, the carrier air flow rate is 100-120Nm³ / h, the primary air main pipe pressure is 4.0-4.5kPa, and the initial coal feed rate is 10-12t / h. If the boiler is currently in a hot state, the plasma power in the plasma ignition parameter package is 280-320kW, the carrier air flow rate is 80-100Nm³ / h, the primary air main pipe pressure is 3.5-4.0kPa, and the initial coal feed rate is 12-14t / h.

[0032] Step 3: Preheat the plasma generator based on the plasma ignition parameter package.

[0033] In this embodiment, the plasma generator is preheated based on the plasma ignition parameter package. The specific method is as follows: First, adjust the primary air system to stabilize the pressure in the primary air header to near the target value. Simultaneously, start the plasma generator, gradually increasing the power according to the plasma ignition parameter package, and adjust the carrier air flow to the set rate to bring the plasma arc to a stable, ready state.

[0034] In this embodiment, the specific method for determining whether the plasma arc has reached a stable standby state is as follows: An electric arc is considered to have reached a stable standby state when all three of the following conditions are met: 1. Arc voltage fluctuation amplitude ≤ ±5%, current fluctuation amplitude ≤ ±3%; 2. The carrier airflow remains stable within ±2% of the set value, without surge; 3. The plasma generator center temperature is ≥6000K, the jet length is ≥800mm, and the duration is ≥30s.

[0035] Step 4: After the plasma generator is successfully preheated, start the coal mill and control the primary air pressure and coal feed rate at the coal mill outlet based on the plasma ignition parameter package.

[0036] In this embodiment, within 3 minutes of starting the coal mill, the coal feed rate must not exceed 110% of the initial coal feed rate; for every 0.5 kPa increase in primary air pressure, the plasma power increases by 20 kW simultaneously; when the coal powder concentration at the coal mill outlet reaches 0.4-0.6 kg / m³, the plasma generator must be fully engaged in the center of the burner, and the deviation of these three actions must not exceed 2 seconds. This logic avoids the problems of "strong wind blowing out the flame, and excessive coal powder accumulating and causing explosive combustion" in traditional ignition.

[0037] Step 5: Use a plasma generator to ignite the pulverized coal entering the burner, completing the rapid plasma ignition of the fan mill boiler.

[0038] In this embodiment, the flame status is acquired in real time after the pulverized coal is ignited to determine whether ignition is successful, wherein: If the flame remains stable within the preset time, ignition is successful; otherwise, ignition fails. If ignition fails, adjust the plasma ignition parameter package of the plasma igniter and try ignition again.

[0039] In this embodiment, if ignition fails, the plasma ignition parameter package of the plasma igniter is adjusted, and ignition is attempted again. The specific method is as follows: If there is no flame signal within 3 seconds after ignition, the plasma power will be increased first, while the opening of the primary air damper will be reduced. If the flame flickers but is not continuous, prioritize reducing the coal feed rate while increasing the carrier airflow. If the adjustment fails after 3 attempts: automatically cut off the coal feed, exit the plasma generator, perform furnace purging, and then restart the ignition process. The time interval between each adjustment should be greater than or equal to 10 seconds.

[0040] Example 4 This embodiment also provides a computing device. The computing device includes a bus, a processor, a memory, and a communication interface. The processor, memory, and communication interface communicate with each other via the bus. The computing device can be a server or a terminal device. It should be understood that this application does not limit the number of processors and memory in the computing device.

[0041] A bus can be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus, etc. Buses can be categorized as address buses, data buses, control buses, etc. For ease of representation, a bus can include a path for transmitting information between various components of a computing device (e.g., memory, processor, communication interfaces).

[0042] The processor may include any one or more of the following: central processing unit (CPU), graphics processing unit (GPU), tensor processing unit (TPU), application specific integrated circuit (ASIC), field-programmable gate array (FPGA), microprocessor (MP), or digital signal processor (DSP).

[0043] Memory can include volatile memory, such as random access memory (RAM). Processors can also include non-volatile memory. volatile memory, such as read-only memory (ROM). ROM (memory only), flash memory, hard disk drive (HDD), or solid state drive (SSD).

[0044] The memory stores executable program code, which the processor executes to implement the functions of the aforementioned units, thereby achieving, for example, the method described in Embodiment 3. That is, the memory may store instructions for the methods and functions relating to the computing device in any of the above embodiments.

[0045] The communication interface uses transceiver modules such as, but not limited to, network interface cards and transceivers to enable communication between computing devices and other devices or communication networks.

[0046] Example 5 This embodiment also provides a computer-readable storage medium storing computer instructions that, when executed by a processor, cause the processor to perform the methods and functions of the computing device involved in any of the above embodiments.

[0047] Generally, the various embodiments of this disclosure can be implemented in hardware or dedicated circuitry, software, logic, or any combination thereof. Some aspects can be implemented in hardware, while others can be implemented in firmware or software, which can be executed by a controller, microprocessor, or other computing device. Although various aspects of the embodiments of this disclosure are shown and described as block diagrams, flowcharts, or represented using some other illustration, it should be understood that the blocks, apparatuses, systems, techniques, or methods described herein can be implemented as, as non-limiting examples, in hardware, software, firmware, dedicated circuitry or logic, general-purpose hardware or controllers or other computing devices, or some combination thereof.

[0048] Example 6 This embodiment provides at least one computer program product tangibly stored on a non-transitory computer-readable storage medium. The computer program product includes computer-executable instructions, such as instructions included in program modules, which execute in a device on a target real or virtual processor to perform the processes / methods as described above with reference to the accompanying drawings. Typically, program modules include routines, programs, libraries, objects, classes, components, data structures, etc., that perform specific tasks or implement specific abstract data types. In various embodiments, the functionality of program modules can be combined or divided among program modules as needed. The machine-executable instructions for the program modules can execute within a local or distributed device. In a distributed device, the program modules can reside in both local and remote storage media.

[0049] Computer program code used to implement the methods of this disclosure may be written in one or more programming languages. This computer program code may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing apparatus, such that when executed by the computer or other programmable data processing apparatus, the program code causes the functions / operations specified in the flowcharts and / or block diagrams to be performed. The program code may be executed entirely on a computer, partially on a computer, as a stand-alone software package, partially on a computer and partially on a remote computer, or entirely on a remote computer or server.

[0050] In the context of this disclosure, computer program code or related data may be carried on any suitable carrier to enable a device, apparatus, or processor to perform the various processes and operations described above. Examples of carriers include signals, computer-readable media, and so on. Examples of signals may include electrical, optical, radio, sound, or other forms of propagation signals, such as carrier waves, infrared signals, etc.

[0051] Computer-readable media can be any tangible medium that contains or stores programs for or relating to an instruction execution system, apparatus, or device, or a data storage device such as a data center containing one or more available media. Computer-readable media can be computer-readable signal media or computer-readable storage media. Computer-readable media can be, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination thereof. More detailed examples of computer-readable storage media include electrical connections with one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical storage devices, magnetic storage devices, or any suitable combination thereof.

[0052] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A fast plasma ignition method for a frequent start-stop fan mill boiler, characterized by, Includes the following steps: After receiving the start command for the fan mill boiler, confirm the current boiler status of the fan mill boiler; Based on the boiler status, the plasma ignition parameter package is confirmed, which includes the target plasma power, carrier air flow rate, primary air header target pressure and initial coal feed rate. The plasma generator is preheated based on the plasma ignition parameter package; After the plasma generator is successfully preheated, the coal mill is started, and the primary air pressure and coal feed rate at the coal mill outlet are controlled based on the plasma ignition parameter package. The pulverized coal entering the burner is ignited using a plasma generator, thus completing the rapid plasma ignition of the fan mill boiler.

2. The rapid plasma ignition method for a fan mill boiler with frequent start-stop cycles according to claim 1, characterized in that, Confirm the current boiler status of the fan mill boiler based on the boiler shutdown time or the drum wall temperature.

3. A method for fast plasma ignition of a fan mill boiler suitable for frequent start-stop according to claim 2, characterized in that, The current boiler status of the fan mill boiler is determined based on the boiler shutdown time or the steam drum wall temperature. The specific method is as follows: When the boiler shutdown time exceeds the first time threshold or the steam drum wall temperature is less than the first temperature threshold, the boiler is currently in a cold state. When the boiler shutdown time is greater than or equal to the second time threshold and less than or equal to the first time threshold, or when the drum wall temperature is greater than or equal to the first temperature threshold and less than or equal to the second temperature threshold, the boiler is currently in a warm state. If the boiler shutdown time is less than the second time threshold or the steam drum wall temperature is greater than the second temperature threshold, then the boiler is currently in a hot state.

4. A method for fast plasma ignition of a fan mill boiler suitable for frequent start-stop according to claim 1, characterized in that, Based on the boiler status, confirm the plasma ignition parameter package. The specific method is as follows: If the boiler is currently in a cold state, the plasma power in the plasma ignition parameter package is 380-400kW, the carrier air flow rate is 120-150Nm³ / h, the primary air main pipe pressure is 4.5-5.0kPa, and the initial coal feed rate is 8-10t / h. If the boiler is currently in a warm state, the plasma power in the plasma ignition parameter package is 320~360kW, the carrier air flow rate is 100-120Nm³ / h, the primary air main pipe pressure is 4.0-4.5kPa, and the initial coal feed rate is 10-12t / h. If the boiler is currently in a hot state, the plasma power in the plasma ignition parameter package is 280-320kW, the carrier air flow rate is 80-100Nm³ / h, the primary air main pipe pressure is 3.5-4.0kPa, and the initial coal feed rate is 12-14t / h.

5. A method for fast plasma ignition of a fan mill boiler suitable for frequent start-stop as claimed in claim 1 wherein, After the pulverized coal entering the burner is ignited using a plasma generator, the process also includes: Real-time acquisition of flame status to determine whether ignition was successful, including: If the flame remains stable within the preset time, ignition is successful; otherwise, ignition fails. If ignition fails, adjust the plasma ignition parameter package of the plasma igniter and try ignition again.

6. A method of fast plasma ignition of a fan mill boiler suitable for frequent start-stop according to claim 5, characterized in that, If ignition fails, adjust the plasma ignition parameter package of the plasma igniter and re-ignite. The specific method is as follows: If there is no flame signal within 3 seconds after ignition, the plasma power will be increased first, while the opening of the primary air damper will be reduced. If the flame flickers but is not continuous, prioritize reducing the coal feed rate while increasing the carrier airflow. If the adjustment fails after 3 attempts: automatically cut off the coal feed, exit the plasma generator, perform furnace purging, and then restart the ignition process. The time interval between each adjustment should be greater than or equal to 10 seconds.

7. A rapid plasma ignition system for a fan mill boiler suitable for frequent start-stop operations, characterized in that, include: The boiler status confirmation unit is used to confirm the current boiler status of the fan mill boiler after receiving the start command of the fan mill boiler. The parameter package confirmation unit is used to confirm the plasma ignition parameter package based on the boiler status. The plasma ignition parameter package includes the target plasma power, carrier air flow rate, primary air header target pressure, and initial coal feed rate. The plasma generator preheating control unit is used to control the preheating of the plasma generator based on the plasma ignition parameter package; The coal mill parameter control unit is used to start the coal mill after the plasma generator is successfully preheated, and to control the primary air pressure and coal feed rate at the coal mill outlet based on the plasma ignition parameter package. The plasma generator ignition control unit is used to control the plasma generator to ignite the pulverized coal entering the burner, thus completing the rapid plasma ignition of the fan mill boiler.

8. An electronic device, comprising: It includes a processor and a memory, the memory storing computer instructions that, when executed by the processor, cause the electronic device to perform the method of any one of claims 1 to 6.

9. A computer program product, characterised in that, The computer program product includes computer-executable instructions that, when executed, implement the method of any one of claims 1 to 6.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer-executable instructions that, when executed by a processor, implement the method of any one of claims 1 to 6.

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