Data processing method and flue gas desulfurization system

Abstract

The invention discloses a data processing method and a flue gas desulfurization system, which are applied to the flue gas desulfurization system, and the method comprises the following steps: obtaining a weight average value of a target material within a first preset time; calculating the weight change rate of the target material according to the weight average value; and according to the weight change rate and the current feeding and discharging operation conditions of the flue gas desulfurization system, the discharging speed of the target material in the flue gas desulfurization system is determined. According to the method, the weight average value and the change rate of the target material in the preset time are obtained in real time, the running state of the flue gas desulfurization system is combined, the discharging speed of the material is accurately determined, the problem of weight data fluctuation caused by environment vibration and equipment running state change is solved, the calculation precision of the discharging flow is improved, and the discharging speed is improved. By accurately monitoring the discharging amount of the slaked lime, the continuity and efficiency of the desulfurization process can be ensured, and meanwhile, the situation that the desulfurization efficiency is reduced and the operation cost is increased due to inaccurate data is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of flue gas desulfurization and relates to a data processing method and a flue gas desulfurization system. Background Art

[0002] In the field of flue gas desulfurization, slaked lime (calcium hydroxide) is widely used as a desulfurizer due to its high efficiency in absorbing sulfur oxides. An effective desulfurization process requires not only a continuous supply of slaked lime, but also precise control and monitoring of its discharge flow rate to ensure efficient and economical operation of the desulfurization. However, in actual operation, this requirement faces technical and environmental challenges.

[0003] First, the storage and transportation of slaked lime is usually carried out in small weighing bins, which are very sensitive to vibration in industrial environments. Due to the influence of vibration, the weighing data will fluctuate significantly, resulting in an inability to accurately read the weight change. This frequent weight change makes it impossible for the traditional flow calculation method to stably reflect the actual discharge amount, thus affecting the control accuracy of the desulfurization process.

[0004] Secondly, the desulfurization system requires a continuous supply of slaked lime to ensure the continuity and efficiency of flue gas treatment. When the amount of slaked lime in the weighing bin is lower than the preset value, the system will automatically start the refilling procedure. However, during the refilling process, the data originally used to measure the discharge flow rate will become negative due to the increase in weight, which further increases the complexity of the flow calculation.

[0005] In summary, the existing method for calculating the amount of slaked lime fed is significantly affected by the environment and equipment operating status and cannot provide accurate real-time data, which not only hinders the fine management of the desulfurization process but also may lead to reduced desulfurization efficiency and increased operating costs. Summary of the invention

[0006] The present invention provides a data processing method and a flue gas desulfurization system, which calculates the change rate of the weighing bin weight by obtaining the real-time average value, determines the feeding speed of the target material in the flue gas desulfurization system, and solves the problem of inaccurate slaked lime feeding flow rate caused by the environment and equipment.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A data processing method, applied to a flue gas desulfurization system, comprises:

[0009] Obtain the average weight of the target material within the first preset time;

[0010] Calculating the weight change rate of the target material according to the weight average value;

[0011] The unloading speed of the target material in the flue gas desulfurization system is determined according to the weight change rate and the current feeding and discharging operation conditions of the flue gas desulfurization system.

[0012] Furthermore, the flue gas desulfurization system includes a weighing bin and a discharging device, and according to the weight change rate and the current feeding and discharging operation conditions of the flue gas desulfurization system, the unloading speed of the target material in the flue gas desulfurization system is determined, including:

[0013] Determine whether the weight change rate of the target material in the weighing bin within the first preset time is a positive value;

[0014] If the change rate of the target material in the weighing bin within the first preset time is positive;

[0015] It is then determined whether the flue gas desulfurization system is in a feeding state;

[0016] If the weighing bin is not adding material, determine whether the discharge equipment is running;

[0017] If the discharge device is running, the weight change rate is defined as the discharge speed.

[0018] Furthermore, before judging whether the flue gas desulfurization system is in a feeding state, the method further includes:

[0019] If the weight change rate of the target material in the weighing bin within the first preset time is a negative value, the weight change rate within the second preset time is obtained, wherein the second preset time is the previous time period of the first preset time.

[0020] Further, obtaining the weight change rate within the second preset time includes:

[0021] If the weight change rate of the target material in the weighing bin within the second preset time is a negative value, the weight change rate within the third preset time is obtained until the obtained weight change rate is a positive value, wherein the third preset time is the previous time period of the second preset time.

[0022] Furthermore, the method further comprises:

[0023] If the target weight change rate within the first preset time is a negative value, the flue gas desulfurization system is controlled to stop the feeding operation.

[0024] Furthermore, after determining whether the flue gas desulfurization system is in a feeding state, the method further includes:

[0025] If the weighing bin is being charged, the weight change rate within a fourth preset time is obtained, wherein the fourth preset time is a time period before the first preset time;

[0026] The weight change rate within the fourth preset time is defined as the material unloading speed.

[0027] Furthermore, after determining whether the discharging device is running, the method further includes:

[0028] If the discharge device is not in operation, the weight change rate is set to 0.

[0029] A flue gas desulfurization system includes a target material bin, a feeding device, a weighing bin, a discharge device and a data processing module, wherein:

[0030] The target material bin is used to store slaked lime, and the slaked lime is transported to the weighing bin through the feeding device;

[0031] The feeding equipment is used to transport the slaked lime in the target material bin to the weighing bin;

[0032] The discharging equipment is used to discharge the slaked lime from the weighing bin;

[0033] The data processing module is used to execute the data processing method to calculate the discharge speed of slaked lime in the weighing bin.

[0034] Furthermore, the weighing bin is provided with a plurality of weighing sensors, and the weighing sensors collect weight data.

[0035] Furthermore, the feeding equipment includes a variable frequency screw conveyor, and the variable frequency screw conveyor adjusts the conveying speed in real time according to the first unloading speed.

[0036] The beneficial effects of the present invention are as follows: by acquiring in real time the average weight and change rate of the target material within a preset time, combined with the operating status of the flue gas desulfurization system, the material feeding speed is accurately determined. This method solves the problem of weight data fluctuations caused by environmental vibrations and changes in equipment operating status, and improves the calculation accuracy of the feeding flow rate. By accurately monitoring the feeding amount of slaked lime, the present invention can ensure the continuity and efficiency of the desulfurization process, while avoiding reduced desulfurization efficiency and increased operating costs due to inaccurate data. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic diagram of the structure of the present invention.

[0038] Figure 2 It is a schematic diagram of the process of the present invention.

[0039] Figure 3 It is a schematic diagram of the structure of the flue gas desulfurization system of the present invention.

[0040] The accompanying drawings are marked as follows: 1-target material bin; 2-weighing bin; 3-bin neck dust collector; 4-level meter; 5-bin wall vibrator; 6-pneumatic gate valve; 7-rotary air lock valve; 8-stirring motor; 9-variable frequency screw conveyor; 10-unloading rotary valve; 11-Roots blower; 12-weighing sensor. DETAILED DESCRIPTION

[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of the present invention; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention; the terms "including" and "having" and any variations thereof in the specification and claims of the present invention and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of the present invention or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0042] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0043] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention 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 invention and are not intended to limit the present invention.

[0044] The present invention provides Figures 1 to 3 In an embodiment of the present invention, a data processing method is applied to a flue gas desulfurization system, comprising:

[0045] S1. Obtain the average weight of the target material within the first preset time;

[0046] This step is to obtain a reference data point, that is, the average weight of the material in a specific time period (the first preset time). This average value helps to reduce data fluctuations caused by factors such as vibration in the industrial environment, thereby providing a relatively stable weight value;

[0047] S2. Calculating the weight change rate of the target material according to the weight average value;

[0048] After obtaining the average weight of the weight values, the system will calculate the rate of change of the material weight in the subsequent time period. This rate of change reflects the rate at which the material flows into or out of the weighing bin and is a key parameter for determining the material discharge speed.

[0049] Since the current weight of the weighing bin is a decreasing value during the discharge process, the calculated change value is a negative number. At the same time, the calculated weight change rate of the weighing bin within the first preset time needs to be converted to a unit. Therefore, the final calculation result needs to be multiplied by -3600 to convert the unit kg / s to kg / h.

[0050] S3. Determine the feeding speed of the target material in the flue gas desulfurization system according to the weight change rate and the current feeding and discharging operation of the flue gas desulfurization system;

[0051] The present invention can use a distributed control system to execute the above steps. The flue gas desulfurization system may encounter different operating conditions during operation, such as charging, discharging or both at the same time. By considering the current charging and discharging status, inaccurate data in unconventional situations, that is, the influence of interference values, can be eliminated. According to the final discharge speed, the flue gas desulfurization system can more accurately adjust the discharge speed to meet the needs in different situations.

[0052] The flue gas desulfurization system includes a weighing bin and a discharging device. According to the weight change rate and the current feeding and discharging operation conditions of the flue gas desulfurization system, the discharging speed of the target material in the flue gas desulfurization system is determined, including:

[0053] Determine whether the weight change rate of the target material in the weighing bin within the first preset time is a positive value;

[0054] S31. If the change rate of the target material in the weighing bin within the first preset time is positive;

[0055] It is then determined whether the flue gas desulfurization system is in a feeding state;

[0056] S32. If the weighing bin is not feeding, determine whether the discharge device is running;

[0057] If the discharge device is running, the weight change rate is defined as the discharge speed.

[0058] Specifically, in step S31, since the tonnage of the lime weighing bin is small, it is easily affected by the vibration under the working environment, which causes the reading to fluctuate greatly. During the discharging process, the weight change rate of the weighing bin can only be positive. If the interference error caused by environmental factors such as vibration, that is, a negative value occurs, it needs to be eliminated; further, on the basis that the change rate of the weighing bin is a positive value, it is necessary to judge whether the flue gas desulfurization system is in a feeding state. If the weighing bin is in a state of both feeding and unloading, when the discharge speed of the weighing bin is greater than the feeding speed, the change rate of the weighing bin will also be positive. However, in this state, the weight change rate of the weighing bin cannot reflect the correct unloading speed, and it is necessary to judge and eliminate interference to ensure that the calculation of the weight change rate only reflects the discharging process.

[0059] In step S32, the interference of the feeding state of the flue gas desulfurization system is eliminated. Only when the discharge equipment is running and it is confirmed that the weight change is caused by the discharge of slaked lime, the weight change rate calculated at this time is the effective feeding speed. Other factors that may cause weight changes, such as feeding or equipment failure, can be eliminated, thereby ensuring the accuracy of the feeding speed.

[0060] Before judging whether the flue gas desulfurization system is in a feeding state, the method further includes:

[0061] S33. If the weight change rate of the target material in the weighing bin within the first preset time is a negative value, the weight change rate within the second preset time is obtained, wherein the second preset time is the previous time period of the first preset time.

[0062] Specifically, the second preset time is earlier than the first preset time. It can be understood that if this calculation is the xth calculation, the calculation of the second preset time is the x-1th calculation. If there is an effective unloading speed available within the second preset time, it is used to replace the current value. By obtaining the weight change rate of the previous time period (the second preset time), the system can more accurately judge the actual flow of the material. This method helps to eliminate data errors caused by short-term interference, thereby providing a more accurate weight change rate.

[0063] The obtaining of the weight change rate within the second preset time includes:

[0064] S331. If the weight change rate of the target material in the weighing bin within the second preset time is a negative value, the weight change rate within the third preset time is obtained until the obtained weight change rate is a positive value, wherein the third preset time is the previous time period of the second preset time.

[0065] Specifically, if there is no effective unloading speed within the second preset time, it is necessary to repeatedly obtain the third preset time. The third preset time may be the previous time period before the second preset time. The process is continued until the weight change rate is positive, the weighing bin is not being fed, and the discharging equipment is in operation. The system continues to monitor and adjust until an effective unloading speed is obtained. This mechanism ensures that even in the presence of interference, reliable results can be obtained through continuous calculation and adjustment, thereby improving the robustness of the system. Even in the face of unstable external conditions, the system can make macroscopic adjustments based on the unloading speed within the previous preset time to regulate the overall desulfurization process efficiency.

[0066] The method further comprises:

[0067] S34. If the target weight change rate within the first preset time is a negative value, the flue gas desulfurization system is controlled to stop the material feeding operation.

[0068] Specifically, when calculating the unloading speed of the weighing bin, it will appear that this calculation is the first calculation, or there is no effective unloading speed in the previous time period of this calculation. At this time, it is necessary to exclude factors that may affect the calculation in the flue gas desulfurization system, that is, to exclude the situation where the continuous unloading of the flue gas desulfurization system causes the target weight change rate to be negative all the time, and the effective weight change rate cannot be calculated. After controlling the flue gas desulfurization system to stop unloading, the subsequent calculation steps of calculating the unloading speed are carried out.

[0069] After determining whether the flue gas desulfurization system is in a feeding state, the method further includes:

[0070] S35. If the weighing bin is being fed, the weight change rate within a fourth preset time is obtained, wherein the fourth preset time is a time period before the first preset time;

[0071] The weight change rate within the fourth preset time is defined as the material unloading speed.

[0072] Specifically, the flue gas desulfurization system is in a feeding state. If the weighing bin is in a state of both feeding and unloading, when the discharge speed of the weighing bin is greater than the feeding speed, the change rate of the weighing bin will also be positive, but in this state, the weight change rate of the weighing bin cannot reflect the correct unloading speed. After confirming that the weighing bin is feeding, it is necessary to obtain the weight change rate within the fourth preset time to replace the existing weight change rate, that is, the weight change rate of the previous time period of the first preset time. This ensures that even in the presence of interference, reliable results can be obtained through continuous calculation and adjustment, thereby improving the robustness of the system. Even in the face of unstable external conditions, the system can make macro adjustments based on the unloading speed within the previous preset time to regulate the overall desulfurization process efficiency.

[0073] More specifically, a second preset time is mentioned in step S33, and a fourth preset time is mentioned in step S35. The second preset time is used when the weight change rate of the weighing bin is negative. Specifically, if the weight change rate is negative within the first preset time, the system will obtain the weight change rate within the second preset time to eliminate short-term interference or errors. The second preset time, as the previous time period of the first preset time, provides an additional data point to help determine the actual flow of materials in the weighing bin. The purpose is to improve the accuracy and reliability of the weight change rate calculation by comparing data from different time periods in a dynamic and potentially unstable industrial environment. The fourth preset time is used after determining whether the flue gas desulfurization system is in a feeding state. Specifically, if the weighing bin is feeding, the system will obtain the weight change rate within the fourth preset time to determine the material flow of the weighing bin before feeding. The fourth preset time, as the previous time period of the first preset time, can help the system understand the material flow before the current feeding operation begins, so as to more accurately calculate the unloading speed. The purpose is to eliminate the impact of feeding on the unloading speed calculation by analyzing the data before feeding in complex situations where feeding and discharging are carried out at the same time. Although the second preset time and the fourth preset time are both used to analyze the material flow of the weighing bin, they play different roles in the data processing process and target different operating conditions and goals, which means that there is no direct correlation between them, but each independently serves to improve the overall performance and accuracy of the system.

[0074] After determining whether the discharging device is running, the method further includes:

[0075] S36. If the discharging device is not in operation, the weight change rate is set to 0.

[0076] Specifically, when the discharge device is not in operation, the weight change of the weighing bin should not be calculated as a valid discharge rate, because no material is discharged at this time. If a non-zero discharge rate is calculated in this case, it will be an erroneous reading, which may be due to weight changes caused by feeding, equipment vibration, environmental interference or other factors. In order to eliminate this error, step S36 clearly states that if the discharge device is not in operation, the first discharge rate should be set to 0. This ensures that the calculation result of the discharge rate is only valid when the discharge device is actually running, thereby improving the measurement accuracy and reliability of the entire system. This processing method helps to avoid erroneously recording or using the discharge rate data when the discharge device stops, which is essential for maintaining data integrity and the correct operation of the system.

[0077] A flue gas desulfurization system includes a target material bin 1, a feeding device, a weighing bin 2, a discharge device and a data processing module, wherein:

[0078] The target material bin 1 is used to store slaked lime, and the slaked lime is transported to the weighing bin 2 through the feeding device;

[0079] The feeding equipment is used to transport the slaked lime in the target material bin 1 to the weighing bin 2;

[0080] The discharging device is used to discharge the slaked lime from the weighing bin 2;

[0081] The data processing module is used to execute the data processing method to calculate the discharge speed of slaked lime in the weighing bin 1.

[0082] The feeding equipment includes a bin neck dust collector 3, a material level meter 4, a bin wall vibrator 5, a pneumatic gate valve 6 and a rotary air lock valve 7; the discharging equipment includes a stirring motor 8, a variable frequency screw conveyor 9, a discharge rotary valve 10 and a Roots blower 11. Specifically, the slaked lime powder is pneumatically transported to the target material bin 1 by a tank truck. During the process of transporting the slaked lime powder from the powder bin to the weighing bin 2, it will pass through the bin wall vibrator 5, the pneumatic gate valve 6 and the rotary air lock valve 7 in sequence. Specifically, the weighing bin 2 is used to store slaked lime and measure the weight of the slaked lime to be discharged. The weighing bin 2 cooperates with the weighing sensor 12 to collect the current weight data.

[0083] Among them, the silo wall vibrator 5 is used to generate mechanical vibration through the built-in vibration mechanism when the slaked lime is not discharged smoothly. This vibration can be directly transmitted to the silo wall, and then act on the slaked lime powder. The vibration energy makes the slaked lime powder attached to the silo wall or already hardened loose and dispersed, which can reduce the adhesion between the powders, reduce the bulk density of the powder, and make the powder easier to flow. The loose state of the slaked lime powder is maintained by the regular or continuous operation of the vibrator, thereby improving the smoothness of the discharge; the pneumatic gate valve 6 is kept in a closed state when no feeding is required, and the gate in the valve is tightly sealed The channel effectively blocks the flow of slaked lime powder, which ensures that the weighing bin 2 or other equipment can remain closed and static during non-feeding period to avoid material leakage or excessive discharge. When the system needs to feed, the gate valve is started through the pneumatic control system, and the control signal activates the pneumatic actuator (usually a cylinder) to drive the gate to move, thereby opening the channel. The slaked lime powder can then flow from the upstream powder bin into the downstream weighing bin 2; the rotary air lock valve 7 controls the flow of materials through its internal rotating device (such as an impeller). When the rotating device rotates, it carries and pushes the slaked lime powder from the feed port to the discharge port to the weighing bin 2.

[0084] Among them, slaked lime powder is easy to absorb moisture and cause caking when stored and in a static state in the weighing bin 2. The stirring motor 8 keeps running continuously to keep the slaked lime powder in the bin active, reduce moisture accumulation and close contact between powders, and thus reduce the possibility of caking. Continuous mechanical stirring helps break up small clumps that have already formed, ensuring the uniformity and fluidity of the powder. Through the rotation of the stirring motor 8, the slaked lime powder is constantly turned and mixed, which helps to evenly distribute the powder and promote smoother flow characteristics. This continuous physical disturbance reduces the friction and adhesion between the powder and the bin wall, making it smoother when the powder needs to be discharged, thereby improving the discharge efficiency. When the screw conveyor is started, the spiral shaft inside it begins to rotate, pushing the slaked lime powder along the casing to the discharge port. The variable frequency screw conveyor The machine 9 adjusts the conveying speed and frequency in real time according to the unloading speed to ensure that the amount of desulfurizer added is within an appropriate range. Specifically, the speed of the screw shaft can be increased or decreased by adjusting the frequency converter settings. Increasing the speed can increase the discharging speed, which is suitable for situations where a large amount of desulfurizer is required. Slowing down the speed can reduce the discharging speed, which is suitable for fine adjustment or light system load. The slaked lime passes through the unloading rotary valve 10 ash conveying pipeline through the frequency conversion conveying mechanism, and the high-pressure airflow of the Roots blower 11 then enters the ash conveying pipeline, blowing the slaked lime powder from the weighing bin 2 or the storage bin into the flue system. This process ensures uniform distribution and stable transportation of the powder. Since the airflow generated by the Roots blower 11 has high pressure and stability, it can overcome the resistance in the pipeline and ensure that the slaked lime powder reaches its destination smoothly.

[0085] The weighing bin 2 is provided with a plurality of weighing sensors 12, which collect weight data. By installing a plurality of weighing sensors 12 on the weighing bin 2, the weight change of the slaked lime powder can be monitored in real time and accurately. Each sensor works independently and can provide independent readings, thereby eliminating the risk of single point failure and improving the reliability of the overall system. This multi-point measurement method makes the data more accurate and stable, and reduces the reading fluctuations caused by factors such as environmental vibration. The collected weight data is transmitted to the distributed control system (DCS) for further processing and analysis. Through real-time monitoring and processing of these data, the system can dynamically adjust the feeding speed and feeding frequency to ensure the accurate transportation and metering of the slaked lime powder.

[0086] Furthermore, in the entire conveying process, it is necessary to set the high material value and the low value of the weighing bin 2, and it is necessary to open the pneumatic gate valve 6 and the rotary air lock valve 7 to supplement the slaked lime powder. When the weighing bin 2 reaches the high value, it is necessary to stop replenishing the material, and repeat this cycle. The variable frequency screw conveyor 9 needs to adjust the frequency in real time according to the unloading speed of the weighing bin 2 to ensure that the amount of desulfurizer added is within an appropriate range. At the same time, during the feeding process, the bin wall vibrator 5 and the fluidizing valve need to be put into operation and run intermittently at the set time to maintain the fluidity of the powder.

[0087] The invention is operational with numerous general purpose or special purpose computer system environments or configurations.

[0088] For example: personal computers, server computers, handheld or portable devices, tablet devices, multiprocessor systems, microprocessor-based systems, set-top boxes, programmable consumer electronics devices, network PCs, minicomputers, mainframe computers, distributed computing environments that include any of the above systems or devices, etc.

[0089] The invention may be described in the general context of computer-executable instructions, such as program modules, being executed by a computer.

[0090] Generally, program modules include routines, programs, objects, components, data structures, etc. that perform particular tasks or implement particular abstract data types. The invention may also be practiced in distributed computing environments where tasks are performed by remote processing devices that are linked through a communications network.

[0091] In a distributed computing environment, program modules may be located in both local and remote computer storage media including memory storage devices.

[0092] Specifically, a person skilled in the art can understand that all or part of the processes in the above-mentioned embodiments can be implemented by instructing the relevant hardware through computer-readable instructions, and the computer-readable instructions can be stored in a computer-readable storage medium. When the program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, the aforementioned storage medium can be a non-volatile storage medium such as a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).

[0093] It should be understood that although the steps in the flowchart of the accompanying drawings are shown in sequence according to the instructions of the arrows, these steps are not necessarily performed in the order indicated by the arrows. Unless otherwise clearly stated in this document, the execution of these steps is not strictly limited in order and can be performed in other orders.

[0094] Moreover, at least part of the steps in the flowchart of the accompanying drawings may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily executed at the same time, but can be executed at different times. The order of execution is not necessarily sequential, but can be executed in turn or alternately with other steps or at least part of the sub-steps or stages of other steps.

[0095] Obviously, the embodiments described above are only some embodiments of the present invention, rather than all embodiments. The drawings provide preferred embodiments of the present invention, but do not limit the scope of the present invention. The present invention can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0096] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned specific embodiments, or replace some of the technical features therein with equivalents. Any equivalent structure made using the contents of the present invention's specification and drawings, directly or indirectly applied to other related technical fields, is also within the scope of patent protection of the present invention.

Claims

1. A data processing method, applied to a flue gas desulfurization system, characterized in that: include: Obtain the average weight of the target material within the first preset time; Calculating the weight change rate of the target material according to the weight average value; The unloading speed of the target material in the flue gas desulfurization system is determined according to the weight change rate and the current feeding and discharging operation conditions of the flue gas desulfurization system.

2. A data processing method according to claim 1, characterized in that: The flue gas desulfurization system includes a weighing bin and a discharging device. According to the weight change rate and the current feeding and discharging operation conditions of the flue gas desulfurization system, the discharging speed of the target material in the flue gas desulfurization system is determined, including: Determine whether the weight change rate of the target material in the weighing bin within the first preset time is a positive value; If the change rate of the target material in the weighing bin within the first preset time is positive; It is then determined whether the flue gas desulfurization system is in a feeding state; If the weighing bin is not adding material, determine whether the discharge equipment is running; If the discharge device is running, the weight change rate is defined as the discharge speed.

3. A data processing method according to claim 2, characterized in that: Before judging whether the flue gas desulfurization system is in a feeding state, the method further includes: If the weight change rate of the target material in the weighing bin within the first preset time is a negative value, the weight change rate within the second preset time is obtained, wherein the second preset time is the previous time period of the first preset time.

4. A data processing method according to claim 3, characterized in that: The obtaining of the weight change rate within the second preset time includes: If the weight change rate of the target material in the weighing bin within the second preset time is a negative value, the weight change rate within the third preset time is obtained until the obtained weight change rate is a positive value, wherein the third preset time is the previous time period of the second preset time.

5. A data processing method according to claim 1, characterized in that: The method further comprises: If the target weight change rate within the first preset time is a negative value, the flue gas desulfurization system is controlled to stop the feeding operation.

6. A data processing method according to claim 2, characterized in that: After determining whether the flue gas desulfurization system is in a feeding state, the method further includes: If the weighing bin is being charged, the weight change rate within a fourth preset time is obtained, wherein the fourth preset time is a time period before the first preset time; The weight change rate within the fourth preset time is defined as the material unloading speed.

7. A data processing method according to claim 2, characterized in that: After determining whether the discharging device is running, the method further includes: If the discharge device is not in operation, the weight change rate is set to 0.

8. A flue gas desulfurization system, characterized in that: It includes target material bin, feeding equipment, weighing bin, discharging equipment and data processing module, among which: The target material bin is used to store slaked lime, and the slaked lime is transported to the weighing bin through the feeding device; The feeding equipment is used to transport the slaked lime in the target material bin to the weighing bin; The discharging equipment is used to discharge the slaked lime from the weighing bin; The data processing module is used to execute the data processing method according to any one of claims 1 to 7 to calculate the discharge speed of slaked lime in the weighing bin.

9. A flue gas desulfurization system according to claim 8, characterized in that: The weighing bin is provided with a plurality of weighing sensors, which collect weight data.

10. A flue gas desulfurization system according to claim 8, characterized in that: The feeding equipment comprises a variable frequency screw conveyor, and the variable frequency screw conveyor adjusts the conveying speed in real time according to the first material discharge speed.

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