Dual medium rake type intelligent sootblower for boiler back pass and method of use

Abstract

This invention provides a dual-media rake-type intelligent sootblower for boiler tail flue and its usage method. The dual-media rake-type intelligent sootblower includes a sootblowing module, a pipeline module, and an intelligent control module. The sootblowing module is installed inside the boiler tail flue wall, and the pipeline module is installed outside the boiler tail flue wall. The sootblowing module is connected to the pipeline module, and both the sootblowing module and the pipeline module are connected to the intelligent control module. The dual-media rake-type intelligent sootblower and its usage method provided by this invention have advantages such as good sootblowing effect, long service life, and wider blowing range. It can efficiently complete sootblowing while effectively preventing clogging of the sootblower.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of power plant boiler tail flue soot blowing technology, in particular to a double-medium rake type intelligent soot blower for boiler tail flue and a use method thereof. BACKGROUND

[0002] In the operation process of large-scale thermal power plants or cogeneration power plants, a large amount of flue gas is generated in the process of coal combustion in the boiler, and the flue gas contains a large amount of dust, which is easy to cause coking and deposition of ash on the heated surface of the tail flue and the equipment thereon, thereby reducing the area flow passage, deteriorating the heat transfer effect, increasing the exhaust gas temperature, reducing the efficiency of the boiler, and even causing the smoke passage to be blocked, increasing the flow resistance, reducing the output, and affecting the safe operation of the boiler. In order to obtain good heat exchange effect, the heated surface should be kept clean and the ash pollution state should be kept low, so it is very important to use a soot blower to clean the ash deposited on the heated surface of the boiler tail flue.

[0003] Regardless of the denitration method (SCR or SNCR), the formation of its product ammonium bisulfate (ABS) cannot be avoided, and ammonium bisulfate will condense in a high-viscosity solid state on each device in the boiler tail flue, increasing the cleaning difficulty.

[0004] In view of the above problems, in combination with the existing soot blower and its system, the following deficiencies exist:

[0005] 1. For a single traditional soot blowing method, due to the limitation of the soot blowing medium, the soot blowing effect cannot be ideal in operation and performance, such as dead angles in soot blowing, narrow soot blowing range, etc. Each of the single air soot blower and the steam soot blower has its own advantages and disadvantages. At present, only one of the two soot blowing methods is used in most soot blowing systems, so there is a deficiency in soot blowing performance, which is difficult to meet the complex working conditions in the furnace.

[0006] 2. Because the ash deposition in the tail flue is sometimes serious, the soot blower is easy to be blocked during the operation of the unit, thereby seriously affecting the soot blowing efficiency.

[0007] 3. At present, each large power plant in China still adopts a fixed-time soot blowing scheme every day and every shift, which improves the efficiency of the boiler, but the steam used for soot blowing is part of the production steam, and excessive frequent soot blowing means more cost investment and air pollution emissions caused by coal combustion. At the same time, soot blowing in the clean part will cause corrosion of the soot blowing surface and reduce the service life. Therefore, it is necessary to optimize the control of the soot blower, that is, to blow soot in time to ensure the normal operation efficiency of the boiler, and to control the soot blowing time and frequency to reduce resource consumption, while achieving convenient operation.

[0008] Therefore, it is very necessary to design a double-medium rake type intelligent soot blower for boiler tail flue and a use method thereof. Summary of the Invention

[0009] The purpose of this invention is to provide a dual-medium rake-type intelligent sootblower for boiler tail flue and its usage method. It has the advantages of good sootblowing effect, long service life and wider blowing range. It can complete sootblowing with high efficiency and effectively avoid sootblower blockage.

[0010] To achieve the above objectives, the present invention provides the following solution:

[0011] A dual-medium rake-type intelligent sootblower for boiler tail flue includes: a sootblowing module, a pipeline module, and an intelligent control module. The sootblowing module is installed inside the boiler tail flue wall, and the pipeline module is installed outside the boiler tail flue wall. The sootblowing module is connected to the pipeline module, and the sootblowing module and the pipeline module are connected to the intelligent control module.

[0012] The soot blowing module includes a soot blowing assembly, a connecting pipe, a three-way valve, and a pushing module. The pushing module is fixedly installed on the outside of the boiler tail flue wall. The connecting pipe is installed on the pushing module. The pipe module is connected to the connecting pipe. Multiple three-way valves are installed on the connecting pipe. The third end of the three-way valve is connected to the soot blowing assembly. The pushing module and the three-way valve are electrically connected to the intelligent control module.

[0013] The pipeline module includes an air delivery pipeline module and a steam delivery pipeline module. The output ends of the air delivery pipeline module and the steam delivery pipeline module are connected to the connecting pipeline, and the air delivery pipeline module and the steam delivery pipeline module are electrically connected to the intelligent control module.

[0014] Optionally, the soot blowing assembly includes a rake-type pipeline and a dual-media soot blower. The third end of the three-way valve is connected to the rake-type pipeline. Multiple sets of dual-media soot blowers are evenly arranged at the bottom of the rake-type pipeline. The dual-media soot blowers are positioned directly opposite the soot blowing area. The dual-media soot blowers are Laval nozzles or tapered nozzles.

[0015] Optionally, the pushing module includes a fixed bracket, an air compressor, a power pushing mechanism, and a pushing rod. The fixed bracket is fixedly installed on the outside of the boiler tail flue wall. The air compressor is installed on the outermost top of the fixed bracket. The output end of the air compressor is connected to the power pushing mechanism. The output end of the power pushing mechanism is connected to the pushing rod. The pushing rod passes through the boiler tail flue and is provided with the connecting pipe. The air compressor is electrically connected to the intelligent control module.

[0016] Optionally, the air delivery pipeline includes an air compressor, a manual air control valve, a first air delivery pipe, an air pressure gauge, an automatic air control valve, and a second air delivery pipe. The output end of the air compressor is connected to the input end of the first air delivery pipe, the output end of the first air delivery pipe is connected to the automatic air control valve, the automatic air control valve is connected to the input end of the second air delivery pipe, the output end of the second air delivery pipe is connected to the input end of the connecting pipeline, the manual air control valve and the air pressure gauge are installed on the first air delivery pipe, and the air compressor, the air pressure gauge and the automatic air control valve are electrically connected to the intelligent control module.

[0017] Optionally, the steam delivery pipeline module includes a steam generator, a manual steam control valve, a first steam delivery pipe, a steam pressure gauge, an automatic steam control valve, a second steam delivery pipe, and a sound generator. The output end of the steam generator is connected to the input end of the first steam delivery pipe, the output end of the first steam delivery pipe is connected to the automatic steam control valve, the automatic steam control valve is connected to the input end of the second steam delivery pipe, and the output end of the second steam delivery pipe is connected to the input end of the connecting pipeline. The manual steam control valve, the steam pressure gauge, and the sound generator are installed on the first steam delivery pipe. The steam generator, the sound generator, the steam pressure gauge, and the automatic steam control valve are electrically connected to the intelligent control module.

[0018] This invention also provides a method for using a dual-media rake-type intelligent sootblower for boiler tail flue. The aforementioned dual-media rake-type intelligent sootblower for boiler tail flue includes the following steps:

[0019] Step 1: Set the initial parameters of the dual-media rake intelligent sootblower and determine whether the dual-media rake intelligent sootblower is operating normally;

[0020] Step 2: If the dual-medium rake-type intelligent soot blower is operating normally, ash accumulation monitoring is performed to determine whether ash accumulation exists. If no ash accumulation exists, no action is taken. If abnormal ash accumulation exists, an alarm is triggered based on the abnormal situation, and emergency measures are taken according to the preset settings. If normal ash accumulation exists, the type of ash accumulation is determined. If the ash accumulation type is old ash, the air compressor, air automatic control valve, and three-way valve are opened to perform air soot blowing, and the soot blowing intensity is set. If the ash accumulation type is adhesive ash, it is determined that the boiler tail flue is operating abnormally, and steam soot blowing is performed. The steam generator, steam automatic control valve, sound wave generator, and three-way valve are opened to perform steam soot blowing, and the soot blowing intensity is set. After soot blowing is completed, return to the ash accumulation monitoring step.

[0021] Step 3: If the dual-media rake-type intelligent soot blower is operating abnormally, determine the type of abnormal operation, trigger an alarm according to the type of abnormal operation, and take emergency measures according to the corresponding preset settings.

[0022] According to specific embodiments provided by the present invention, the following technical effects are disclosed: The present invention provides a dual-media rake-type intelligent sootblower for boiler tail flue and a method of use. The dual-media rake-type intelligent sootblower includes a sootblowing module, a pipeline module, and an intelligent control module. The sootblowing module includes sootblowing components, connecting pipelines, a three-way valve, and a push module. The pipeline module includes an air delivery pipeline module and a steam delivery pipeline module. It can realize dual-media sootblowing and adopt different sootblowing types for different types of ash accumulation, which is convenient to use. The method includes setting the initial parameters of the dual-media rake-type intelligent sootblower and determining whether the dual-media rake-type intelligent sootblower is operating normally. If the dual-media rake-type intelligent sootblower is operating normally, ash accumulation monitoring is performed to determine whether ash accumulation exists. If no ash accumulation exists, no action is taken. If abnormal ash accumulation exists, an alarm is triggered according to the abnormal situation, and emergency measures are taken according to the preset settings. If normal ash accumulation is present, the type of ash accumulation is determined. If the ash accumulation is old ash, the air compressor, automatic air control valve, and three-way valve are opened to perform air soot blowing, and the soot blowing intensity is set. If the ash accumulation is adhesive ash, it is determined that the boiler tail flue is operating abnormally, and steam soot blowing is performed. The steam generator, automatic steam control valve, sound wave generator, and three-way valve are opened to perform steam soot blowing, and the soot blowing intensity is set. After soot blowing is completed, the process returns to the ash accumulation monitoring step. If the dual-media rake-type intelligent soot blower is operating abnormally, the type of abnormal operation is determined, an alarm is triggered according to the type of abnormal operation, and emergency measures are taken according to the corresponding preset settings. This dual-media rake-type intelligent soot blower and its usage method have the advantages of good soot blowing effect, long service life, and wider blowing range. It can complete soot blowing with high efficiency while effectively avoiding clogging of the soot blower. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of a dual-medium rake-type intelligent soot blower used in the tail flue of a boiler according to an embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of the usage method of the dual-medium rake-type intelligent soot blower for the tail flue of a boiler according to an embodiment of the present invention.

[0026] Reference numerals in the attached drawings: 1. Boiler tail flue wall; 2. Dual-media soot blower; 3. Rake-type pipeline; 4. Three-way valve; 5. Fixed bracket; 6. Air compressor; 7. Push rod; 8. Connecting pipeline; 9. Air compressor; 10. First air delivery pipe; 11. Manual air control valve; 12. Air pressure gauge; 13. Second air delivery pipe; 14. Steam generator; 15. First steam delivery pipe; 16. Manual steam control valve; 17. Steam pressure gauge; 18. Automatic steam control valve; 19. Second steam delivery pipe; 20. Sound wave generator; 21. Automatic air control valve. Detailed Implementation

[0027] The purpose of this invention is to provide a dual-medium rake-type intelligent soot blower for boiler tail flue and its usage method. It has the advantages of good soot blowing effect, long service life and wider blowing range. It can complete soot blowing with high efficiency, effectively avoid soot blower blockage and improve identification efficiency.

[0028] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] like Figure 1 As shown in the figure, the dual-medium rake-type intelligent sootblower for boiler tail flue provided in this embodiment of the invention includes: a sootblowing module, a pipeline module and an intelligent control module. The sootblowing module is installed inside the boiler tail flue furnace wall 1, and the pipeline module is installed outside the boiler tail flue furnace wall 1. The sootblowing module is connected to the pipeline module, and the sootblowing module and the pipeline module are connected to the intelligent control module.

[0030] The soot blowing module includes a soot blowing assembly, a connecting pipe 8, a three-way valve 4, and a push module. The push module is fixedly installed on the outside of the boiler tail flue wall 1. The connecting pipe 8 is installed on the push module. The pipe module is connected to the connecting pipe 8. Multiple sets of three-way valves 4 are installed on the connecting pipe 8. The third end of the three-way valve 4 is connected to the soot blowing assembly. The push module and the three-way valve 4 are electrically connected to the intelligent control module.

[0031] The pipeline module includes an air delivery pipeline module and a steam delivery pipeline module. The output ends of the air delivery pipeline module and the steam delivery pipeline module are connected to the connecting pipeline 8. The air delivery pipeline module and the steam delivery pipeline module are electrically connected to the intelligent control module, which can select different soot blowing media according to different soot blowing conditions.

[0032] The intelligent control module has monitoring, alarm, feedback and emergency handling functions. Depending on the specific function, it is equipped with ash accumulation monitor, pressure sensor and flow monitor for monitoring. The ash accumulation monitor and pressure sensor are installed inside the flue wall at the tail of the boiler, and the flow monitor is installed on the pipeline module.

[0033] The soot blowing assembly includes a rake-type pipe 3 and a dual-medium soot blower 2. The third end of the three-way valve 4 is connected to the rake-type pipe 3. Multiple sets of dual-medium soot blowers 2 are evenly arranged at the bottom of the rake-type pipe 3. The dual-medium soot blowers 2 are positioned directly opposite the soot blowing area. The dual-medium soot blowers 2 are Laval nozzles or tapered nozzles. The Laval nozzle is a nozzle whose cross-section decreases and then increases, and the airflow velocity can reach supersonic speeds. Tapered nozzles can also be selected according to other requirements. At least two dual-medium soot blowers are evenly arranged at the bottom of the rake-type pipe.

[0034] The pushing module includes a fixed bracket 5, an air compressor 6, a power pushing mechanism, and a pushing rod 7. The fixed bracket 5 is fixedly installed on the outside of the boiler tail flue wall 1. The air compressor 6 is installed on the outermost top of the fixed bracket 5. The output end of the air compressor 6 is connected to the power pushing mechanism, and the output end of the power pushing mechanism is connected to the pushing rod 7. The pushing rod 7 passes through the boiler tail flue, and the connecting pipe 8 is installed on the pushing rod 7. The air compressor 6 is electrically connected to the intelligent control module. The pushing rod 7 can be extended and retracted by the air compressor 6 and the power pushing mechanism, which can effectively solve the problem of dead angle in soot blowing. During operation, the dual-medium soot blower 2 can be moved back and forth and sent to the tail flue for soot blowing. The pushing rod 7 can be a hollow pushing rod, which is sleeved on the outside of the connecting pipe 8.

[0035] The air delivery pipeline includes an air compressor 9, an air manual control valve 11, a first air delivery pipe 10, an air pressure gauge 12, an air automatic control valve 21, and a second air delivery pipe 13. The output end of the air compressor 9 is connected to the input end of the first air delivery pipe 10. The output end of the first air delivery pipe 10 is connected to the air automatic control valve 21. The air automatic control valve 21 is connected to the input end of the second air delivery pipe 13. The output end of the second air delivery pipe 13 is connected to the input end of the connecting pipeline 8. The air manual control valve 11 and the air pressure gauge 12 are installed on the first air delivery pipe 10. The air compressor 9, the air pressure gauge 12, and the air automatic control valve 21 are electrically connected to the intelligent control module.

[0036] The steam delivery pipeline module includes a steam generator 14, a manual steam control valve 16, a first steam delivery pipe 15, a steam pressure gauge 17, an automatic steam control valve 18, a second steam delivery pipe 19, and a sound generator 20. The output end of the steam generator 14 is connected to the input end of the first steam delivery pipe 15, the output end of the first steam delivery pipe 15 is connected to the automatic steam control valve 18, the automatic steam control valve 18 is connected to the input end of the second steam delivery pipe 19, and the output end of the second steam delivery pipe 19 is connected to the input end of the connecting pipeline 8. The manual steam control valve 16, the steam pressure gauge 17, and the sound generator 20 are installed on the first steam delivery pipe 15. The steam generator 14, the sound generator 20, the steam pressure gauge 17, and the automatic steam control valve 18 are electrically connected to the intelligent control module.

[0037] By adding an ultrasonic wave generator 20, the dual-medium soot blower 2 not only has a blockage-removing function when steam soot blowing is performed, but also achieves a certain effect of removing dirt from the surface of the heat exchange elements, so that soot blowing is combined with cleaning function.

[0038] The pipelines of the dual-medium rake-type intelligent soot blower can be integrally forged or welded.

[0039] The air compressor 6 can be replaced by an electric motor;

[0040] The rake-type pipeline 3 and the connecting pipeline 8 can also be connected by other weld-free connection methods, which facilitates installation;

[0041] The dual-media rake-type intelligent soot blower can also be installed on the ash accumulation surface of the air preheater or other locations, with the specific installation location set according to specific needs;

[0042] Alternatively, steam generator 14 can be omitted, and steam from the power plant can be used directly.

[0043] like Figure 2 As shown, the present invention also provides a method for using a dual-media rake-type intelligent sootblower for boiler tail flue gas ducts, applied to the aforementioned dual-media rake-type intelligent sootblower for boiler tail flue gas ducts, comprising the following steps:

[0044] Step 1: Set the initial parameters of the dual-media rake intelligent sootblower and determine whether the dual-media rake intelligent sootblower is operating normally;

[0045] Step 2: If the dual-media rake-type intelligent sootblower is operating normally, ash accumulation monitoring is performed to determine if ash accumulation exists. If no ash accumulation exists, no action is taken. If abnormal ash accumulation exists (the degree of ash accumulation exceeds the preset threshold and cannot be cleaned normally), an alarm is triggered according to the abnormal situation, and emergency measures are taken according to the preset settings. If normal ash accumulation exists, the type of ash accumulation is determined. If the ash accumulation type is old ash, the air compressor, air automatic control valve, and three-way valve are opened to perform air sootblowing, and the sootblowing intensity is set. If the ash accumulation type is adhesive ash, it is determined that the boiler tail flue is operating abnormally, and steam sootblowing is performed. The steam generator, steam automatic control valve, sound wave generator, and three-way valve are opened to perform steam sootblowing, and the sootblowing intensity is set. After sootblowing is completed, the process returns to the ash accumulation monitoring step for feedback adjustment to adjust the sootblowing intensity and achieve the highest efficiency of the sootblower.

[0046] Step 3: If the dual-media rake-type intelligent soot blower is operating abnormally, determine the type of abnormal operation, trigger an alarm according to the type of abnormal operation, and take emergency measures according to the corresponding preset settings.

[0047] This invention provides a dual-media rake-type intelligent sootblower for boiler tail flue gas ducts and its usage method. The dual-media rake-type intelligent sootblower includes a sootblowing module, a piping module, and an intelligent control module. The sootblowing module includes sootblowing components, connecting pipes, a three-way valve, and a push module. The piping module includes an air delivery piping module and a steam delivery piping module. It can achieve dual-media sootblowing, employing different sootblowing types for different types of ash accumulation, making it easy to use. The method includes setting initial parameters for the dual-media rake-type intelligent sootblower and determining whether the dual-media rake-type intelligent sootblower is operating normally. If the dual-media rake-type intelligent sootblower is operating normally, ash accumulation monitoring is performed to determine if ash accumulation exists. If no ash accumulation exists, no action is taken. If abnormal ash accumulation exists, an alarm is triggered according to the abnormal situation, and emergency measures are taken according to pre-set parameters. If normal ash accumulation exists, the method is... The system monitors the type of ash accumulation. If the ash accumulation is old ash, it controls the air compressor, automatic air control valve, and three-way valve to open for air soot blowing and sets the blowing intensity. If the ash accumulation is adhesive ash, it determines that the boiler tail flue is operating abnormally and initiates steam soot blowing. It controls the steam generator, automatic steam control valve, sound generator, and three-way valve to open for steam soot blowing and sets the blowing intensity. After soot blowing is completed, it returns to the ash accumulation monitoring step. If the dual-media rake-type intelligent soot blower is operating abnormally, it determines the type of abnormal operation, issues an alarm based on the type of abnormal operation, and takes emergency measures according to the corresponding preset settings. This dual-media rake-type intelligent soot blower and its usage method have advantages such as good soot blowing effect, long service life, and wider blowing range. It can complete soot blowing with high efficiency while effectively avoiding blockage of the soot blower.

[0048] This document uses specific examples to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of the present invention. Furthermore, those skilled in the art will recognize that, based on the ideas of the present invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A dual-medium rake-type intelligent soot blower for boiler tail flue, characterized in that, include: The boiler includes a soot blowing module, a pipeline module, and an intelligent control module. The soot blowing module is installed inside the boiler tail flue wall, and the pipeline module is installed outside the boiler tail flue wall. The soot blowing module is connected to the pipeline module, and the soot blowing module and the pipeline module are connected to the intelligent control module. The soot blowing module includes a soot blowing assembly, a connecting pipe, a three-way valve, and a pushing module. The pushing module is fixedly installed on the outside of the boiler tail flue wall. The connecting pipe is installed on the pushing module. The pipe module is connected to the connecting pipe. Multiple three-way valves are installed on the connecting pipe. The third end of the three-way valve is connected to the soot blowing assembly. The pushing module and the three-way valve are electrically connected to the intelligent control module. The pipeline module includes an air delivery pipeline module and a steam delivery pipeline module. The output ends of the air delivery pipeline module and the steam delivery pipeline module are connected to the connecting pipeline, and the air delivery pipeline module and the steam delivery pipeline module are electrically connected to the intelligent control module. The soot blowing assembly includes a rake-type pipeline and a dual-media soot blower. The third end of the three-way valve is connected to the rake-type pipeline. Multiple sets of dual-media soot blowers are evenly arranged at the bottom of the rake-type pipeline. The dual-media soot blowers are positioned directly in front of the soot blowing area. The dual-media soot blower is a Laval nozzle or a tapered nozzle. The pushing module includes a fixed bracket, an air compressor, a power pushing mechanism, and a pushing rod. The fixed bracket is fixedly installed on the outside of the boiler tail flue wall. The air compressor is installed on the outermost top of the fixed bracket. The output end of the air compressor is connected to the power pushing mechanism. The output end of the power pushing mechanism is connected to the pushing rod. The pushing rod passes through the boiler tail flue and is provided with a connecting pipe. The air compressor is electrically connected to the intelligent control module.

2. The dual-medium rake-type intelligent soot blower for boiler tail flue as described in claim 1, characterized in that, The air delivery pipeline module includes an air compressor, a manual air control valve, a first air delivery pipe, an air pressure gauge, an automatic air control valve, and a second air delivery pipe. The output end of the air compressor is connected to the input end of the first air delivery pipe, the output end of the first air delivery pipe is connected to the automatic air control valve, the automatic air control valve is connected to the input end of the second air delivery pipe, and the output end of the second air delivery pipe is connected to the input end of the connecting pipeline. The manual air control valve and the air pressure gauge are installed on the first air delivery pipe. The air compressor, the air pressure gauge, and the automatic air control valve are electrically connected to the intelligent control module.

3. The dual-medium rake-type intelligent soot blower for boiler tail flue as described in claim 1, characterized in that, The steam delivery pipeline module includes a steam generator, a manual steam control valve, a first steam delivery pipe, a steam pressure gauge, an automatic steam control valve, a second steam delivery pipe, and a sound generator. The output end of the steam generator is connected to the input end of the first steam delivery pipe, the output end of the first steam delivery pipe is connected to the automatic steam control valve, the automatic steam control valve is connected to the input end of the second steam delivery pipe, and the output end of the second steam delivery pipe is connected to the input end of the connecting pipeline. The manual steam control valve, the steam pressure gauge, and the sound generator are installed on the first steam delivery pipe. The steam generator, the sound generator, the steam pressure gauge, and the automatic steam control valve are electrically connected to the intelligent control module.

4. A method of using a dual-media rake-type intelligent sootblower for boiler tail flue, applied to the dual-media rake-type intelligent sootblower for boiler tail flue as described in any one of claims 1-3, characterized in that, Includes the following steps: Step 1: Set the initial parameters of the dual-media rake intelligent sootblower and determine whether the dual-media rake intelligent sootblower is operating normally; Step 2: If the dual-medium rake-type intelligent soot blower is operating normally, ash accumulation monitoring is performed to determine whether ash accumulation exists. If no ash accumulation exists, no action is taken. If abnormal ash accumulation exists, an alarm is triggered based on the abnormal situation, and emergency measures are taken according to the preset settings. If normal ash accumulation exists, the type of ash accumulation is determined. If the ash accumulation type is old ash, the air compressor, air automatic control valve, and three-way valve are opened to perform air soot blowing, and the soot blowing intensity is set. If the ash accumulation type is adhesive ash, it is determined that the boiler tail flue is operating abnormally, and steam soot blowing is performed. The steam generator, steam automatic control valve, sound wave generator, and three-way valve are opened to perform steam soot blowing, and the soot blowing intensity is set. After soot blowing is completed, return to the ash accumulation monitoring step. Step 3: If the dual-media rake-type intelligent soot blower is operating abnormally, determine the type of abnormal operation, trigger an alarm according to the type of abnormal operation, and take emergency measures according to the corresponding preset settings.

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