Biomass boiler desulfurization and dust removal method and system

Abstract

The invention discloses a desulfurization and dust removal method and system for a biomass boiler. The method comprises the following steps: transforming the structure of the dust remover, adding a desulfurization agent branch pipeline, and connecting the desulfurization agent branch pipeline to a flue at the tail part of the furnace side so as to prolong the reaction time of the agent and flue gas. Meanwhile, an intelligent control system is adopted to monitor key parameters in the flue gas in real time, operation parameters are adjusted according to data, and the optimal operation state of the desulfurization and dust removal equipment is ensured. In addition, by optimizing and debugging each sub-project, the purpose of improving the efficiency of the desulfurization and dust removal island of the biomass boiler is achieved. The desulfurization and dust removal efficiency can be remarkably improved, the environmental protection risk is reduced, the cost is saved, and important environmental protection and economic benefits are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of desulfurization and dust removal of biomass boilers, and in particular to a desulfurization and dust removal method and system for a biomass boiler. Background Art

[0002] With the rapid development of industrialization and urbanization, air pollution has become increasingly prominent, especially the harm caused by sulfur dioxide (SO2) and particulate matter (PM) emissions to the environment and human health. In response to this problem, the government has introduced a series of strict environmental protection policies, requiring all industries to take effective measures to reduce pollutant emissions. As a major energy consumer, the desulfurization and dust removal effect of biomass boilers directly affects the quality of the atmospheric environment.

[0003] At present, the desulfurization and dust removal technology of biomass boilers has the following problems:

[0004] It is difficult to coordinate the treatment of multiple pollutants. The flue gas of biomass boilers contains not only gaseous pollutants such as sulfur dioxide and nitrogen oxides, but also solid pollutants such as particulate matter. It is necessary to achieve efficient desulfurization and dust removal while coordinating the treatment of multiple pollutants.

[0005] The effect of low-temperature flue gas treatment is not good. The flue gas temperature of biomass boilers is usually low, which will affect the operation effect of desulfurization and dust removal equipment.

[0006] The efficiency of low-concentration pollutant treatment is low. The pollutant concentration in the flue gas of biomass boilers is relatively low. How to achieve efficient desulfurization and dust removal under low-concentration conditions is a technical challenge.

[0007] The operating stability of the desulfurization and dust removal equipment is insufficient. When the fuel quality and variety change or the material line becomes unstable, the oxygen content in the furnace will fluctuate sharply, affecting the sulfur dioxide emission value of the flue gas.

[0008] The service life of dust removal and desulfurization equipment is short. It is necessary to increase the service life of desulfurization and dust removal equipment and reduce the maintenance and replacement costs of the equipment. Summary of the invention

[0009] Based on this, the embodiment of the present application provides a biomass boiler desulfurization and dust removal method and system, which optimizes the dust collector structure, adds a desulfurization agent branch pipe directly connected to the flue at the tail end of the furnace, increases the reaction time between the agent and the flue gas, improves the desulfurization efficiency, reduces environmental risks, and saves the cost of desulfurization agents.

[0010] In a first aspect, a method for desulfurization and dust removal of a biomass boiler is provided, the method comprising:

[0011] Modify the internal structure of the existing desulfurization and dust removal equipment to add a desulfurization agent branch pipeline, and connect the desulfurization agent branch pipeline to the flue at the tail end of the furnace;

[0012] Real-time monitoring of desulfurization and dust removal equipment, real-time monitoring of key parameters in flue gas, and adjustment of operating parameters of desulfurization and dust removal equipment according to key parameter data; among which, key parameters include pollutant concentration, temperature, and pressure parameters;

[0013] The desulfurization and dust removal equipment is optimized and debugged for each sub-project to achieve desulfurization and dust removal of biomass boilers.

[0014] Optionally, the internal structure of the existing desulfurization and dust removal equipment is modified to add a desulfurization agent branch pipeline, and the desulfurization agent branch pipeline is connected to the flue at the tail end of the furnace, including:

[0015] Conduct technical assessment of existing desulfurization and dust removal equipment to determine the scope and specific requirements of the transformation, and determine the layout, size and material selection of the desulfurization agent branch pipeline;

[0016] According to the design drawings, the required desulfurization agent branch pipes are manufactured. At the tail flue of the boiler, the flue is modified according to the design requirements and the cross-sectional area of ​​the flue is increased so that the desulfurization agent branch pipes can be connected.

[0017] Optionally, the desulfurization and dust removal equipment is monitored in real time, key parameters in the flue gas are monitored in real time, and the operating parameters of the desulfurization and dust removal equipment are adjusted according to the key parameter data, including:

[0018] Deploy sensors to monitor key parameters in flue gas in real time and transmit data to the central control system through sensors;

[0019] The data curve of the desulfurization facilities is formed by the access of key parameter data, and an optimization algorithm model is established. According to the preset desulfurization efficiency target, the dosage of the desulfurizer, oxygen supply and other parameters are automatically adjusted to achieve intelligent control.

[0020] Optionally, after adjusting the operating parameters of the desulfurization and dust removal equipment according to the key parameter data, the method further includes:

[0021] Real-time monitoring and control of key indicators such as system operating status, and providing these operating information to management personnel in graphical form. Based on the analysis results, the operating parameters of the desulfurization and dust removal equipment are automatically adjusted, including adjusting the spray volume, optimizing the pH value and density of the circulating slurry, and adjusting the working status of the demister.

[0022] Optionally, optimize and debug the desulfurization and dust removal equipment for each sub-project, including:

[0023] The spray system is optimized by increasing the contact area and time between flue gas and slurry, as well as the number of spray layers, and a high-efficiency ridge-type mist eliminator is used.

[0024] In a second aspect, a biomass boiler desulfurization and dust removal system is provided, the system comprising:

[0025] The transformation module is used to transform the internal structure of the existing desulfurization and dust removal equipment, add a branch pipeline for desulfurization agents, and connect the branch pipeline for desulfurization agents to the flue at the tail end of the furnace;

[0026] The monitoring module is used to monitor the desulfurization and dust removal equipment in real time, monitor the key parameters in the flue gas in real time, and adjust the operating parameters of the desulfurization and dust removal equipment according to the key parameter data; wherein the key parameters include pollutant concentration, temperature, and pressure parameters;

[0027] The optimization module is used to optimize and debug the desulfurization and dust removal equipment for each sub-project to achieve desulfurization and dust removal of biomass boilers.

[0028] Optionally, the internal structure of the existing desulfurization and dust removal equipment is modified to add a desulfurization agent branch pipeline, and the desulfurization agent branch pipeline is connected to the flue at the tail end of the furnace, including:

[0029] Conduct technical assessment of existing desulfurization and dust removal equipment to determine the scope and specific requirements of the transformation, and determine the layout, size and material selection of the desulfurization agent branch pipeline;

[0030] According to the design drawings, the required desulfurization agent branch pipes are manufactured. At the tail flue of the boiler, the flue is modified according to the design requirements and the cross-sectional area of ​​the flue is increased so that the desulfurization agent branch pipes can be connected.

[0031] Optionally, the desulfurization and dust removal equipment is monitored in real time, key parameters in the flue gas are monitored in real time, and the operating parameters of the desulfurization and dust removal equipment are adjusted according to the key parameter data, including:

[0032] Deploy sensors to monitor key parameters in flue gas in real time and transmit data to the central control system through sensors;

[0033] The data curve of the desulfurization facilities is formed by the access of key parameter data, and an optimization algorithm model is established. According to the preset desulfurization efficiency target, the dosage of the desulfurizer, oxygen supply and other parameters are automatically adjusted to achieve intelligent control.

[0034] Optionally, after adjusting the operating parameters of the desulfurization and dust removal equipment according to the key parameter data, the system further includes:

[0035] Real-time monitoring and control of key indicators such as system operating status, and providing these operating information to management personnel in graphical form. Based on the analysis results, the operating parameters of the desulfurization and dust removal equipment are automatically adjusted, including adjusting the spray volume, optimizing the pH value and density of the circulating slurry, and adjusting the working status of the demister.

[0036] Optionally, optimize and debug the desulfurization and dust removal equipment for each sub-project, including:

[0037] The spray system is optimized by increasing the contact area and time between flue gas and slurry, as well as the number of spray layers, and a high-efficiency ridge-type mist eliminator is used.

[0038] The beneficial effects brought by the technical solution provided by the embodiment of the present application include at least:

[0039] (1) By optimizing the structure and operating parameters of desulfurization and dust removal equipment, the desulfurization efficiency can be significantly improved, and ultra-low emissions of sulfur dioxide and particulate matter can be achieved, thereby reducing harm to the environment.

[0040] (2) It can monitor and adjust the operating parameters of the desulfurization and dust removal equipment in real time to ensure that the system operates in the best condition, thereby reducing energy consumption and material consumption and achieving energy conservation and emission reduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0042] Figure 1 A flow chart of desulfurization and dust removal of a biomass boiler provided in an embodiment of the present application;

[0043] Figure 2 A block diagram of a biomass boiler desulfurization and dust removal system provided in an embodiment of the present application. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0045] In the description of the present invention, the terms "comprises", "has" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may also include other steps or units that are not explicitly listed but are inherent to these processes, methods, products or apparatuses, or steps or units added based on further optimization schemes conceived by the present invention.

[0046] With the rapid development of industrialization and urbanization, air pollution has become increasingly prominent, especially the harm caused by sulfur dioxide (SO2) and particulate matter (PM) emissions to the environment and human health. In response to this problem, the government has introduced a series of strict environmental protection policies, requiring all industries to take effective measures to reduce pollutant emissions. As a major energy consumer, the desulfurization and dust removal effect of biomass boilers directly affects the quality of the atmospheric environment.

[0047] At present, the desulfurization and dust removal technology of biomass boilers has the following problems:

[0048] It is difficult to coordinate the treatment of multiple pollutants. The flue gas of biomass boilers contains not only gaseous pollutants such as sulfur dioxide and nitrogen oxides, but also solid pollutants such as particulate matter. It is necessary to achieve efficient desulfurization and dust removal while coordinating the treatment of multiple pollutants.

[0049] The effect of low-temperature flue gas treatment is not good. The flue gas temperature of biomass boilers is usually low, which will affect the operation effect of desulfurization and dust removal equipment.

[0050] The efficiency of low-concentration pollutant treatment is low. The pollutant concentration in the flue gas of biomass boilers is relatively low. How to achieve efficient desulfurization and dust removal under low-concentration conditions is a technical challenge.

[0051] The operating stability of the desulfurization and dust removal equipment is insufficient. When the fuel quality and variety change or the material line becomes unstable, the oxygen content in the furnace will fluctuate sharply, affecting the sulfur dioxide emission value of the flue gas.

[0052] The service life of dust removal and desulfurization equipment is short. It is necessary to increase the service life of desulfurization and dust removal equipment and reduce the maintenance and replacement costs of the equipment.

[0053] Please refer to Figure 1 , which shows a flow chart of a biomass boiler desulfurization and dust removal method provided in an embodiment of the present application, the method may include the following steps:

[0054] S1. Modify the internal structure of the existing desulfurization and dust removal equipment to add a desulfurization agent branch pipeline, and connect the desulfurization agent branch pipeline to the flue at the tail end of the furnace.

[0055] In this step, first, the internal structure of the existing desulfurization and dust removal equipment is modified, a branch pipe for desulfurization reagent is added, and it is directly connected to the flue at the tail end of the furnace. The purpose of this step is to increase the contact area and reaction time between the desulfurization reagent and the flue gas, thereby improving the desulfurization efficiency. The modification work needs to be carefully designed to ensure that the layout of the branch pipe of the reagent can maximize the contact efficiency with the flue gas, while also considering the safety of the equipment and the convenience of operation.

[0056] Specifically, it is necessary to first conduct a detailed on-site survey and technical assessment of the existing desulfurization and dust removal equipment to determine the scope and specific requirements of the transformation. Based on the survey results, the new desulfurization and dust removal equipment structure is designed, including the layout, size and material selection of the branch pipelines of the desulfurization agent. The safety, operating efficiency and compatibility of the equipment with the existing system must be considered during the design.

[0057] Manufacturing and installation of pipelines: According to the design drawings, the required branch pipelines for desulfurization agents are manufactured. This usually involves selecting suitable materials, such as corrosion-resistant stainless steel or special alloys, to ensure that the pipelines can withstand the erosion of chemicals in the flue gas. After manufacturing, the pipelines need to be strictly inspected for quality, including material thickness, weld integrity, etc. After the pipelines are qualified, they are installed on site, which usually requires a professional construction team to complete. During the installation process, it is necessary to ensure that the position, angle and connection method of the pipelines meet the design requirements, and to ensure the sealing of the pipelines to prevent leakage of flue gas.

[0058] Access to the flue at the tail end of the furnace: At the flue at the tail end of the boiler, holes are opened or the flue is modified according to the design requirements so that the branch pipe of the desulfurization agent can be connected. This step requires precise measurement and cutting to ensure that the connection between the new and old flues is accurate. During the access process, the flue may need to be modified to a certain extent, such as increasing the cross-sectional area of ​​the flue to accommodate the airflow of the newly added pipeline. At the same time, the thermal expansion and contraction of the flue also need to be considered to ensure the stability and safety of the flue under different working conditions. After the access is completed, the connection needs to be strictly sealed to prevent flue gas leakage.

[0059] S2, real-time monitoring of the desulfurization and dust removal equipment, real-time monitoring of key parameters in the flue gas, and adjustment of the operating parameters of the desulfurization and dust removal equipment according to the key parameter data.

[0060] Among them, the key parameters include pollutant concentration, temperature, and pressure parameters. In this step, secondly, real-time monitoring of the desulfurization and dust removal equipment is implemented. By installing sensors and data acquisition systems, key parameters such as pollutant concentration, temperature, and pressure in the flue gas are monitored in real time. These data will be used to adjust the operating parameters of the desulfurization and dust removal equipment in real time to ensure that the best desulfurization and dust removal effect can be achieved under different operating conditions. This step requires the installation and deployment of a series of sensors and monitoring equipment that can monitor key parameters such as pollutant concentration (such as sulfur dioxide, nitrogen oxides), temperature, and pressure in the flue gas in real time. These sensors transmit data to the central control system.

[0061] Integration of intelligent control systems: Integrate an intelligent control system, such as the desulfurization intelligent optimization control system provided by Jiahua Technology. The system forms a desulfurization facility data curve by accessing real-time data such as desulfurization flue gas, absorption tower, limestone slurry preparation, gypsum dehydration and process water, and establishes an optimization algorithm model for optimization adjustment and dynamic management and control. The intelligent control system can automatically adjust the dosage of desulfurizer, oxygen supply and other parameters according to the preset desulfurization efficiency target to achieve intelligent control.

[0062] Real-time data analysis and adjustment: The real-time monitoring system processes and analyzes the collected data. For example, the SCADA software is responsible for summarizing various operating information in the system, realizing real-time monitoring and control of key indicators such as the system operating status, and providing these operating information to management personnel in a graphical manner. Based on the analysis results, the control system automatically adjusts the operating parameters of the desulfurization and dust removal equipment, such as adjusting the spray volume of the spray system, optimizing the pH value and density of the circulating slurry, and adjusting the working state of the demister to ensure that the desulfurization and dust removal system can operate efficiently under different working conditions.

[0063] Fault warning and performance optimization: The intelligent system can also provide fault warning and performance optimization. The system can monitor various parameters in the flue gas desulfurization process in real time. When abnormal conditions are found, it can automatically issue warning signals to avoid downtime and production losses caused by equipment failure.

[0064] Remote management and report generation: Finally, the system usually has remote management functions, and managers can access and monitor the operating status of the desulfurization and dust removal system from any location through a network connection. In addition, the system can generate various reports to provide effective management for system operation.

[0065] S3, optimize and debug the desulfurization and dust removal equipment for each sub-project to achieve desulfurization and dust removal of biomass boilers.

[0066] Finally, the desulfurization and dust removal equipment is carefully optimized and debugged to ensure that the system can operate stably and achieve the expected desulfurization and dust removal effect. This includes adjusting each sub-project according to professional specifications and requirements, and conducting multiple tests to collect data and analyze system performance. During the debugging process, it may be necessary to fine-tune the operating parameters, structural design or control system of the equipment to achieve the goal of desulfurization and dust removal of biomass boilers. Finally, through performance verification, it is ensured that the modified system can meet environmental protection requirements in actual operation and reduce pollutant emissions.

[0067] The specific process of optimizing and debugging the desulfurization and dust removal equipment for each sub-project and realizing the operating parameters of the biomass boiler desulfurization and dust removal island to improve efficiency usually includes the following steps:

[0068] System evaluation and design optimization: Before optimization and commissioning, it is necessary to first conduct a comprehensive evaluation of the existing desulfurization and dust removal system, including system design, operating data, historical maintenance records, etc. The purpose of the evaluation is to determine the performance bottlenecks and potential room for improvement of the system. Based on the evaluation results, an optimization plan is designed, which may include adding a spray layer, improving the demister design, adjusting the operating parameters of the slurry circulation pump, etc. For example, by adding a spray layer and a corresponding circulation pump, the slurry circulation volume in the tower can be increased, thereby reducing the sulfur dioxide emission concentration.

[0069] Real-time monitoring and adjustment of key parameters: Install and deploy sensors to monitor key parameters such as pollutant concentration, temperature, and pressure in flue gas in real time. These data will be used to adjust the operating parameters of the desulfurization and dust removal equipment in real time, such as the spray volume of the spray layer, the pH value and density of the slurry, etc. For example, by real-time monitoring of the sulfur dioxide concentration in the flue gas, the operation of the spray system can be automatically adjusted to ensure the desulfurization efficiency.

[0070] Optimization of the spray system: The spray system is a key part of the desulfurization and dust removal system. The optimization of the spray system can be achieved by increasing the spray layer, optimizing the nozzle design, and adjusting the height of the spray layer and the liquid-gas ratio. These improvements can increase the contact area and time between the flue gas and the slurry, thereby improving the desulfurization efficiency. For example, by increasing the number of spray layers, the desulfurization efficiency can be improved, but the resistance and energy consumption of the system must also be considered.

[0071] Modification and optimization of demister: The function of demister is to remove droplets and fine particles in flue gas. Modification of demister can be achieved by replacing new and efficient demisters, adjusting the layout of demisters, optimizing flushing systems, etc. For example, using efficient ridge demisters can improve dust removal effects and achieve ultra-low emissions of particulate matter from biomass boilers.

[0072] like Figure 2 The present application also provides a biomass boiler desulfurization and dust removal system. The system includes:

[0073] The transformation module is used to transform the internal structure of the existing desulfurization and dust removal equipment, add a branch pipeline for desulfurization agents, and connect the branch pipeline for desulfurization agents to the flue at the tail end of the furnace;

[0074] The monitoring module is used to monitor the desulfurization and dust removal equipment in real time, monitor the key parameters in the flue gas in real time, and adjust the operating parameters of the desulfurization and dust removal equipment according to the key parameter data; wherein the key parameters include pollutant concentration, temperature, and pressure parameters;

[0075] The optimization module is used to optimize and debug the desulfurization and dust removal equipment for each sub-project to achieve desulfurization and dust removal of biomass boilers.

[0076] The biomass boiler desulfurization and dust removal system provided in the embodiment of the present application is used to implement the above-mentioned biomass boiler desulfurization and dust removal method. For the specific definition of the biomass boiler desulfurization and dust removal system, please refer to the definition of the biomass boiler desulfurization and dust removal method above, which will not be repeated here. The various parts of the above-mentioned biomass boiler desulfurization and dust removal system can be implemented in whole or in part through software, hardware and their combination. The above-mentioned modules can be embedded in or independent of the processor in the device in the form of hardware, or can be stored in the memory in the device in the form of software, so that the processor can call and execute the operations corresponding to the above modules.

[0077] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0078] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A biomass boiler desulfurization and dust removal method, characterized in that: The method comprises: Modify the internal structure of the existing desulfurization and dust removal equipment to add a desulfurization agent branch pipeline, and connect the desulfurization agent branch pipeline to the flue at the tail end of the furnace; Real-time monitoring of desulfurization and dust removal equipment, real-time monitoring of key parameters in flue gas, and adjustment of operating parameters of desulfurization and dust removal equipment according to key parameter data; among which, key parameters include pollutant concentration, temperature, and pressure parameters; The desulfurization and dust removal equipment is optimized and debugged for each sub-project to achieve desulfurization and dust removal of biomass boilers.

2. The biomass boiler desulfurization and dust removal method according to claim 1, characterized in that: The internal structure of the existing desulfurization and dust removal equipment is modified to add a branch pipeline for desulfurization agents, and the branch pipeline for desulfurization agents is connected to the flue at the tail end of the furnace, including: Conduct technical assessment of existing desulfurization and dust removal equipment to determine the scope and specific requirements of the transformation, and determine the layout, size and material selection of the desulfurization agent branch pipeline; According to the design drawings, the required desulfurization agent branch pipes are manufactured. At the tail flue of the boiler, the flue is modified according to the design requirements and the cross-sectional area of ​​the flue is increased so that the desulfurization agent branch pipes can be connected.

3. The biomass boiler desulfurization and dust removal method according to claim 1, characterized in that: Real-time monitoring of desulfurization and dust removal equipment, real-time monitoring of key parameters in flue gas, and adjustment of operating parameters of desulfurization and dust removal equipment according to key parameter data, including: Deploy sensors to monitor key parameters in flue gas in real time and transmit data to the central control system through sensors; The data curve of the desulfurization facilities is formed by the access of key parameter data, and an optimization algorithm model is established. According to the preset desulfurization efficiency target, the dosage of the desulfurizer, oxygen supply and other parameters are automatically adjusted to achieve intelligent control.

4. The biomass boiler desulfurization and dust removal method according to claim 1, characterized in that: After adjusting the operating parameters of the desulfurization and dust removal equipment according to the key parameter data, the method further includes: Real-time monitoring and control of key indicators such as system operating status, and providing these operating information to management personnel in graphical form. Based on the analysis results, the operating parameters of the desulfurization and dust removal equipment are automatically adjusted, including adjusting the spray volume, optimizing the pH value and density of the circulating slurry, and adjusting the working status of the demister.

5. The biomass boiler desulfurization and dust removal method according to claim 1, characterized in that: Optimize and debug the desulfurization and dust removal equipment for each sub-project, including: The spray system is optimized by increasing the contact area and time between flue gas and slurry, as well as the number of spray layers, and a high-efficiency ridge-type mist eliminator is used.

6. A biomass boiler desulfurization and dust removal system, characterized in that: The system comprises: The transformation module is used to transform the internal structure of the existing desulfurization and dust removal equipment, add a branch pipeline for desulfurization agents, and connect the branch pipeline for desulfurization agents to the flue at the tail end of the furnace; The monitoring module is used to monitor the desulfurization and dust removal equipment in real time, monitor the key parameters in the flue gas in real time, and adjust the operating parameters of the desulfurization and dust removal equipment according to the key parameter data; wherein the key parameters include pollutant concentration, temperature, and pressure parameters; The optimization module is used to optimize and debug the desulfurization and dust removal equipment for each sub-project to achieve desulfurization and dust removal of biomass boilers.

7. The biomass boiler desulfurization and dust removal system according to claim 6 is characterized in that: The internal structure of the existing desulfurization and dust removal equipment is modified to add a branch pipeline for desulfurization agents, and the branch pipeline for desulfurization agents is connected to the flue at the tail end of the furnace, including: Conduct technical assessment of existing desulfurization and dust removal equipment to determine the scope and specific requirements of the transformation, and determine the layout, size and material selection of the desulfurization agent branch pipeline; According to the design drawings, the required desulfurization agent branch pipes are manufactured. At the tail flue of the boiler, the flue is modified according to the design requirements and the cross-sectional area of ​​the flue is increased so that the desulfurization agent branch pipes can be connected.

8. The biomass boiler desulfurization and dust removal system according to claim 6 is characterized in that: Real-time monitoring of desulfurization and dust removal equipment, real-time monitoring of key parameters in flue gas, and adjustment of operating parameters of desulfurization and dust removal equipment according to key parameter data, including: Deploy sensors to monitor key parameters in flue gas in real time and transmit data to the central control system through sensors; The data curve of the desulfurization facilities is formed by the access of key parameter data, and an optimization algorithm model is established. According to the preset desulfurization efficiency target, the dosage of the desulfurizer, oxygen supply and other parameters are automatically adjusted to achieve intelligent control.

9. The biomass boiler desulfurization and dust removal system according to claim 6, characterized in that: After adjusting the operating parameters of the desulfurization and dust removal equipment according to the key parameter data, the system further includes: Real-time monitoring and control of key indicators such as system operating status, and providing these operating information to management personnel in graphical form. Based on the analysis results, the operating parameters of the desulfurization and dust removal equipment are automatically adjusted, including adjusting the spray volume, optimizing the pH value and density of the circulating slurry, and adjusting the working status of the demister.

10. The biomass boiler desulfurization and dust removal system according to claim 6, characterized in that: Optimize and debug the desulfurization and dust removal equipment for each sub-project, including: The spray system is optimized by increasing the contact area and time between flue gas and slurry, as well as the number of spray layers, and a high-efficiency ridge-type mist eliminator is used.

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