Control method, device and equipment for reducing flue fly ash adhesion and storage medium

Abstract

The invention discloses a control method, device and equipment for reducing flue fly ash adhesion and a storage medium, and the method comprises the steps that a flue is covered with a smooth coating, and a plurality of vibrators are arranged, so that in each period, data of the flue gas flow rate, the load fluctuation, the ash deposition thickness and the ash deposition viscidity are obtained, and the data of the flue gas flow rate, the load fluctuation, the ash deposition thickness and the ash deposition viscidity are obtained; and the rapping adjustment frequency and rapping adjustment force of each rapping device are calculated, so that the rapping parameters of each rapping device are periodically adjusted. Therefore, friction between the fly ash and the inner wall of the flue is reduced through the smooth coating surface, the adhesion of the fly ash to the inner wall of the flue is reduced, fly ash accumulation is relieved, all the vibrators can periodically vibrate the flue on the flue, the vibration strength and frequency are adjusted according to specific working condition parameters, it is guaranteed that the fly ash can fall off from the wall of the flue in a vibration mode, and the quality of the flue is improved. Smooth flue airflow is ensured.

Description

Technical Field

[0001] The present application relates to the field of computer technology, and more specifically, to a control method, device, equipment and storage medium for reducing flue fly ash adhesion. Background Art

[0002] During the fuel combustion process, a kind of fine ash particles called fly ash are produced, and its particle size is usually in the range of 1 to 100 microns. Fly ash has the characteristics of light specific gravity, easy to deposit in a static state and poor fluidity. In the current waste incineration process, the fly ash adhesion phenomenon is extremely serious in the flue from the reaction tower to the bag filter. The fly ash in the flue gas will adhere tightly to the inner wall of the flue, gradually forming a thick ash layer. When the ash accumulation reaches a certain amount, it falls to the bottom of the flue due to its own gravity, causing the flue to be blocked, seriously hindering the ventilation of the flue. Not only that, the accumulated fly ash also greatly increases the resistance of the flue, causing airflow to be blocked and damaging the operating performance of the equipment.

[0003] To deal with this situation, maintenance personnel are currently arranged to clean up. Maintenance personnel need to use appropriate tools and equipment to carefully remove the adhered fly ash. However, the working environment inside the flue is often harsh, and there may be dangerous factors such as high temperature, making it difficult for maintenance personnel to complete the work on schedule and with quality. Therefore, the phenomenon of serious fly ash adhesion in the flue has always existed and has not been resolved.

[0004] Based on this, how to reduce fly ash adhesion on the flue and ensure smooth flue airflow is an urgent problem that needs to be solved. Summary of the invention

[0005] In view of the above problems, the present application provides a control method, device, equipment and storage medium for reducing flue fly ash adhesion to ensure smooth flue airflow.

[0006] In order to achieve the above objectives, the specific plan is proposed as follows:

[0007] A control method for reducing flue fly ash adhesion, applied to a rapper control cabinet for controlling the operation of a rapper in a flue, wherein a reaction tower is connected to a bag filter through the flue, a wall of the flue is covered with a smooth coating, a camera and four rappers are installed on the flue, the four rappers are arranged on the flue at the four corners of a square, the side length of the square is a preset distance, each rapper raps the flue with its rapping frequency and rapping strength, and the camera and each rapper are communicatively connected to the rapper control cabinet;

[0008] The method includes:

[0009] At the end time of the current adjustment cycle, the current load data of the reaction tower in the current adjustment cycle, the flue gas flow rate in the flue, and the flue dust accumulation video recorded by the camera are obtained, and the duration of the flue dust accumulation video is the period from the start time to the end time of the current adjustment cycle;

[0010] Determining load fluctuations according to reference load data of the reaction tower in a previous adjustment cycle and the current load data;

[0011] Identify the thickness and viscosity of the ash deposits on the flue from the flue ash deposit video;

[0012] The rapping frequency and rapping intensity of the four rappers are adjusted respectively according to the flue gas flow rate, the load fluctuation, the ash accumulation thickness and the ash accumulation viscosity.

[0013] Optionally, identifying the thickness and viscosity of the ash deposits on the flue from the flue ash deposit video includes:

[0014] From the last frame of the flue dust accumulation video, identify the dust accumulation thickness at each rapper on the flue;

[0015] For each target position of the rapper on the flue, in the flue ash accumulation video, if the ash accumulation height at the target position changes from high to low, then the ash accumulation viscosity at the target position is determined to be a light adhesion level; if the ash accumulation height changes from high to low and then to high, or from low to high and then to low, then the ash accumulation viscosity at the target position is determined to be a moderate adhesion level; if the ash accumulation height changes from low to high, then the ash accumulation viscosity at the target position is determined to be a heavy adhesion level.

[0016] Optionally, according to the flue gas flow rate, the load fluctuation, the ash accumulation thickness and the ash accumulation viscosity, the rapping frequency and rapping intensity of the four rappers are adjusted respectively, including:

[0017] For each of said rappers:

[0018] The rapping adjustment intensity of the rapper is calculated using a first formula, and the rapping adjustment frequency of the rapper is calculated using a second formula, wherein the first formula is:

[0019]

[0020] in, To adjust the vibration intensity, is the upper limit of the rapping of the rapper, is the ash accumulation viscosity of the rapper at the target position on the flue, , Indicates the mild adhesion level, Indicates the moderate adhesion level, Indicates the severe adhesion level, is the ash accumulation thickness at the rapper on the flue, is the historical maximum dust accumulation thickness at the rapper, is the flue gas flow rate, is the historical maximum flue gas velocity of the flue, For the load fluctuation, , is the historical maximum load increase of the reaction tower, is the historical maximum load reduction of the reaction tower, is the ceiling function, is the current rapping intensity of the rapper, Adjusting the rapping intensity of the rapper;

[0021] The second formula is:

[0022]

[0023] in, is the rapping cycle of the rapper, Adjust the base number for the rapping cycle time. adjusting a frequency for rapping of the rapper;

[0024] Based on the rapping adjustment frequency and the rapping adjustment intensity of the rapper, the rapping frequency and the rapping intensity of the rapper are adjusted.

[0025] Optionally, the rapping force range of each rapper is 0~1176N, the initial rapping force of each rapper is the middle value of its rapping force range, and the initial rapping frequency of each rapper is once every 20 minutes.

[0026] Optionally, the smooth coating is a ceramic coating or a nano coating.

[0027] A control device for reducing the adhesion of flue fly ash, applied to a rapper control cabinet for controlling the operation of a rapper in a flue, wherein a reaction tower is connected to a bag filter through the flue, a wall of the flue is covered with a smooth coating, a camera and four rappers are installed on the flue, the four rappers are arranged on the flue at the four corners of a square, the side length of the square is a preset distance, each rapper raps the flue with its rapping frequency and rapping strength, and the camera and each rapper are communicatively connected to the rapper control cabinet;

[0028] The device includes:

[0029] A data acquisition unit, used for acquiring, at the end time of the current adjustment period, the current load data of the reaction tower in the current adjustment period, the flue gas flow rate in the flue, and the flue dust accumulation video recorded by the camera, wherein the duration of the flue dust accumulation video is the period from the start time to the end time of the current adjustment period;

[0030] A load fluctuation determination unit, configured to determine the load fluctuation according to the reference load data of the reaction tower in the previous adjustment cycle and the current load data;

[0031] An ash accumulation data identification unit, used to identify the thickness and viscosity of ash accumulation on the flue from the flue ash accumulation video;

[0032] The rapping adjustment unit is used to adjust the rapping frequency and rapping intensity of the four rappers according to the flue gas flow rate, the load fluctuation, the ash thickness and the ash viscosity.

[0033] Optionally, the dust accumulation data identification unit includes:

[0034] An ash accumulation thickness recognition unit, used to recognize the ash accumulation thickness at each rapper on the flue from the last frame of the flue ash accumulation video;

[0035] The ash adhesion level determination unit is used for determining, for each target position of the rapper on the flue, that in the flue ash accumulation video, if the ash accumulation height at the target position changes from high to low, then the ash adhesion at the target position is determined to be a light adhesion level; if the ash accumulation height changes from high to low and then to high, or from low to high and then to low, then the ash adhesion at the target position is determined to be a medium adhesion level; if the ash accumulation height changes from low to high, then the ash adhesion at the target position is determined to be a heavy adhesion level.

[0036] Optionally, the rapping adjustment unit comprises:

[0037] The rapping parameter calculation unit is used to calculate the rapping adjustment force of each rapper using a first formula, and to calculate the rapping adjustment frequency of the rapper using a second formula, wherein the first formula is:

[0038]

[0039] in, To adjust the vibration intensity, is the upper limit of the rapping of the rapper, is the ash accumulation viscosity of the rapper at the target position on the flue, , Indicates the mild adhesion level, Indicates the moderate adhesion level, Indicates the severe adhesion level, is the ash accumulation thickness at the rapper on the flue, is the historical maximum dust accumulation thickness at the rapper, is the flue gas flow rate, is the historical maximum flue gas velocity of the flue, For the load fluctuation, , is the historical maximum load increase of the reaction tower, is the historical maximum load reduction of the reaction tower, is the ceiling function, is the current rapping intensity of the rapper, Adjusting the rapping intensity of the rapper;

[0040] The second formula is:

[0041]

[0042] in, is the rapping cycle of the rapper, Adjust the base number for the rapping cycle time. adjusting a frequency for rapping of the rapper;

[0043] A frequency intensity adjustment unit is used to adjust the rapping frequency and rapping intensity of the rapper based on the rapping adjustment frequency and rapping adjustment intensity of the rapper.

[0044] A control device for reducing flue fly ash adhesion, comprising a memory and a processor;

[0045] The memory is used to store programs;

[0046] The processor is used to execute the program to implement the various steps of the control method for reducing flue fly ash adhesion as described above.

[0047] A storage medium stores a computer program, which, when executed by a processor, implements the various steps of the control method for reducing flue fly ash adhesion as described above.

[0048] By means of the above technical solution, the present application covers the flue with a smooth coating and is provided with a plurality of rappers, so that in each cycle, data on flue gas velocity, load fluctuation, ash accumulation thickness and ash accumulation viscosity are obtained, and the rapping adjustment frequency and rapping adjustment strength of each rapper are calculated and adjusted, so as to periodically adjust the rapping parameters of each rapper. It can be seen that the smooth coating surface reduces the friction between the fly ash and the inner wall of the flue, thereby reducing the adhesion of the fly ash to the inner wall of the flue and alleviating the accumulation of fly ash. Each rapper on the flue can periodically rap the flue, and adjust the rapping strength and frequency according to the specific working condition parameters to ensure that the fly ash can be vibrated off the flue wall and ensure smooth flue gas flow. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Also, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0050] Figure 1 A schematic diagram of a flue scene and rapper layout provided in an embodiment of the present application;

[0051] Figure 2 A schematic diagram of a process for controlling and reducing flue fly ash adhesion provided in an embodiment of the present application;

[0052] Figure 3 A schematic diagram of the structure of a device for controlling and reducing the adhesion of flue fly ash provided in an embodiment of the present application;

[0053] Figure 4 A schematic diagram of the structure of a device for controlling and reducing flue fly ash adhesion provided in an embodiment of the present application. DETAILED DESCRIPTION

[0054] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0055] The solution of this application can be implemented based on a terminal with data processing capability, which can be a rapper control cabinet, which can control the operation of the rapper in the flue. Figure 1As shown, the reaction tower is connected to the bag filter through a flue, the wall of the flue is covered with a smooth coating 1, and four rappers are installed on the flue, namely rapper 2, rapper 3, rapper 4 and rapper 5. The four rappers (2, 3, 4 and 5) are arranged on the flue at the four corners of a square, and the side length of the square is a preset distance (such as 1m). In addition, a camera can also be installed on the flue, and the camera and each rapper (2, 3, 4 and 5) are all connected to the rapper control cabinet 6 for communication. The camera records the dust accumulation on the flue in real time and periodically uploads the video to the rapper control cabinet 6.

[0056] Specifically, the vibration frequency and vibration intensity of each vibration device are adjustable, and the vibration intensity range of each vibration device can be 0~120kg, or 0~1176N (gravitational acceleration g is 9.8 m / s²), so the initial value of the vibration intensity of each vibration device can be the middle value of the vibration intensity range, such as 60kg, or 2352N. The initial value of the vibration frequency of each vibration device can be once every 20 minutes.

[0057] The smooth coating 1 may be a ceramic coating or a nano coating.

[0058] It is understandable that the ceramic coating has a smooth surface, high hardness, is difficult for dust to adhere to, and has good high temperature resistance and corrosion resistance. The nano coating is a coating made using nanotechnology, has a smooth surface, and can reduce the adhesion of dust.

[0059] Next, combine Figure 2 The control method for reducing flue fly ash adhesion of the present application may include the following steps:

[0060] Step S110: At the end of the current adjustment cycle, obtain the current load data of the reaction tower in the current adjustment cycle, the flue gas flow rate in the flue, and the flue dust accumulation video recorded by the camera.

[0061] The duration of the adjustment cycle can be customized, such as one hour. The duration of the flue dust recording is the period from the start time to the end time of the current adjustment cycle.

[0062] Specifically, the rapper control cabinet 6 can adjust the rapping parameters of the four rappers once every adjustment cycle to make the rapping work of the four rappers more suitable for the working conditions of the flue and the reaction tower. Then at the end of each adjustment cycle, the current load data of the reaction tower in the current adjustment cycle can be obtained, and the load data represents the amount of garbage (in tons) loaded by the reaction tower in the current adjustment cycle. At the same time, the flue gas flow rate (in meters per second) in the flue can be collected. At the same time, the flue dust accumulation video recorded by the camera can be obtained. The flue dust accumulation video has multiple image frames from the start time to the end time of the adjustment cycle, and each image frame contains the height information of the dust accumulation at each rapper.

[0063] Step S120: Determine load fluctuation according to the reference load data of the reaction tower in the previous adjustment cycle and the current load data.

[0064] Specifically, the load fluctuation may be a result obtained by subtracting the reference load data of the reaction tower in the previous adjustment cycle from the current load data, so the load fluctuation may be a positive value or a negative value.

[0065] Step S130: Identify the thickness and viscosity of the ash deposits on the flue from the flue ash deposit video.

[0066] It can be understood that the flue dust accumulation video records in real time the dynamic changes of the dust accumulation on the flue during the past adjustment cycle.

[0067] Among them, dust adhesion can be divided into three levels, namely, light adhesion level, medium adhesion level and heavy adhesion level.

[0068] For example, in the flue ash video, if the ash is not blown away as the smoke flows, and the ash height increases instead of decreasing, it can be defined as a heavy adhesion level. If the ash is blown away as the smoke flows, but the ash height remains almost unchanged, it can be defined as a medium adhesion level. If the ash is blown away as the smoke flows, and it continues to be blown until the ash height decreases continuously, it can be defined as a light adhesion level.

[0069] Step S140, adjusting the rapping frequency and rapping intensity of the four rappers respectively according to the flue gas flow rate, load fluctuation, ash thickness and ash viscosity.

[0070] It is understandable that the flue gas flow rate, load fluctuation, ash thickness and ash viscosity belong to the operating conditions of the reaction tower and the flue in the current adjustment cycle. In order to make the rapping work of each rapper more suitable for the operating conditions and better vibrate the ash, the rapping frequency and rapping strength of the four rappers can be adjusted respectively according to the flue gas flow rate, load fluctuation, ash thickness and ash viscosity, so as to ensure that the fly ash can be vibrated off the flue wall and ensure smooth flue gas flow.

[0071] The control method for reducing the adhesion of flue fly ash provided in this embodiment is to cover the flue with a smooth coating and provide a plurality of rappers, so that in each cycle, the data of flue gas velocity, load fluctuation, ash accumulation thickness and ash accumulation viscosity are obtained, and the rapping adjustment frequency and rapping adjustment strength of each rapper are calculated and adjusted, so as to periodically adjust the rapping parameters of each rapper. It can be seen that the smooth coating surface reduces the friction between the fly ash and the inner wall of the flue, thereby reducing the adhesion of the fly ash to the inner wall of the flue and alleviating the accumulation of fly ash. Each rapper on the flue can periodically rap the flue, and adjust the rapping strength and frequency according to the specific working condition parameters to ensure that the fly ash can be vibrated off the flue wall and ensure smooth flue gas flow.

[0072] In some embodiments of the present application, the process of identifying the thickness and viscosity of the ash deposits on the flue from the flue ash deposit video in step S130 is introduced, and the process may include:

[0073] S1. From the last frame of the flue dust accumulation video, identify the dust accumulation thickness at each rapper on the flue.

[0074] It is understandable that the last frame of the flue dust accumulation video can reflect the current condition of the flue, so the dust accumulation thickness in the last frame of the image can be used as the current dust accumulation thickness on the flue.

[0075] Furthermore, due to the local adhesion and loose adhesion of fly ash, fly ash forms local accumulation and adhesion in specific areas of the flue, such as the diameter change and the rough parts of the flue wall, so the ash accumulation thickness may be different at different rapper positions on the flue.

[0076] S2. For each target position of the rapper on the flue, in the flue dust accumulation video, if the dust accumulation height at the target position changes from high to low, the dust accumulation viscosity at the target position is determined to be a light adhesion level; if the dust accumulation height changes from high to low and then to high, or from low to high and then to low, the dust accumulation viscosity at the target position is determined to be a medium adhesion level; if the dust accumulation height changes from low to high, the dust accumulation viscosity at the target position is determined to be a heavy adhesion level.

[0077] It can be understood that the light adhesion level means that the ash is lightly adhered to the target position of the flue, so it will not accumulate in large quantities, but will decrease with the flow of flue gas. Therefore, if the ash height at the target position changes from high to low, it can be determined as a light adhesion level. The medium adhesion level means that the ash is more adhered to the target position, but as the amount of ash increases, it will not accumulate too much, and will also decrease with the flow of flue gas to achieve a state of ash balance. Therefore, if the ash height changes from high to low and then to high, or from low to high and then to low, the ash viscosity at the target position is determined to be a medium adhesion level. The heavy adhesion level means that the ash is adhered to the target position in large quantities, and because of the strong adhesion force, it is not disturbed by the flow of flue gas and continues to accumulate more ash. Therefore, if the ash height changes from low to high, the ash viscosity at the target position is determined to be a heavy adhesion level.

[0078] In some embodiments of the present application, the process of adjusting the rapping frequency and rapping intensity of the four rappers respectively according to the flue gas flow rate, load fluctuation, ash thickness and ash viscosity in the above step S140 is introduced, and the process may include:

[0079] S1. For each rapper, use the first formula to calculate the rapping adjustment force of the rapper, and use the second formula to calculate the rapping adjustment frequency of the rapper.

[0080] The first formula can be:

[0081]

[0082] in, To adjust the vibration intensity, is the upper limit of the rapping of the rapper, is the ash stickiness at the target position of the rapper on the flue, , Indicates a light adhesion level, Indicates a moderate adhesion level, Indicates a heavy adhesion level, is the ash accumulation thickness at the rapper on the flue, is the highest dust accumulation thickness at the rapper in history, is the flue gas velocity, is the highest flue gas velocity in history. For load fluctuation, , is the historical maximum load increase of the reaction tower, is the historical maximum load reduction of the reaction tower, is the ceiling function, is the current rapping force of the rapper, Adjust the intensity of the rapping with the rapper.

[0083] It is understandable that the increase in flue gas flow rate helps to reduce the adhesion of fly ash, which reduces the burden on the rapper to offset the rapping force requirement. Therefore, the flue gas flow rate Adjust the intensity with vibration Negatively correlated. Load fluctuation The larger the value, the more uncertainty there is in the accumulation of fly ash on the flue, and there is a need to increase the vibration intensity, so the load fluctuates. Adjust the intensity with vibration Positively correlated. Dust thickness The larger the value, the greater the vibration force required, so the dust thickness Adjust the intensity with vibration The stronger the dust stickiness (the value corresponding to the grade), The larger the viscosity, the more difficult it is to remove the dust at the corresponding position, and the greater the vibration force required. Adjust the intensity with vibration On this basis, the influence of various factors on the accumulation of ash on the flue is ranked as follows: ash viscosity level >Dust accumulation thickness >Flue gas flow rate >Load fluctuation , so the exponential coefficients corresponding to the four factors are 3>2>1.5>0.5 respectively.

[0084] in, Indicates the basic amount of a single adjustment of the intensity, thus limiting the single adjustment range to Nearby, avoid excessive adjustment of the rapper. Can indicate the thickness of dust accumulation When the dust is too low or too high, the strength can be increased. When it is lower, The value is -1, which increases the intensity of the reduction adjustment. When it is higher, A value of 1 increases the intensity of the adjustment. It can be expressed as the flue gas velocity When it is low, the value tends to 1, and it tends to have no regulating effect on the flue gas flow rate. When the pressure is high, the workload of the rapper is shared, so the rapper can weaken the increase in force. It can be expressed as load fluctuation When it is low, the value tends to 1, and it tends to have no regulatory effect on load fluctuations. When the load is high, the vibration demand of the rapper needs to be increased, but the load fluctuation Among various factors, the influence of ash accumulation on the flue is minimal, so even if the load fluctuates When larger, The value tends to , and will not have much impact on the adjustment amount of the vibration force. Can indicate the viscosity level of dust accumulation When the value is 1, it determines the vibration intensity adjustment amount. For positive values, adjust the vibration intensity. To increase the adjustment, or when the dust viscosity level And the dust thickness When the dust accumulation thickness is greater than 40% of the historical maximum, the vibration intensity adjustment is determined. For positive values, adjust the vibration intensity. To increase the adjustment, or when the dust viscosity level =1 and the dust accumulation thickness When the dust accumulation thickness is greater than 80% of the historical maximum dust accumulation thickness, the vibration intensity adjustment amount is determined. For positive values, adjust the vibration intensity. To increase the adjustment. In addition to these three cases, The value of -1 determines the vibration intensity adjustment amount. If it is a negative value, the vibration intensity will be adjusted. To reduce adjustments, so as to avoid unnecessary excessive vibration damage to the flue structure.

[0085] The second formula can be:

[0086]

[0087] in, is the rapping cycle of the rapper, Adjust the base number for the rapping cycle time. Adjust the frequency for the rapping of the rapper.

[0088] It is understandable that the increase in flue gas velocity helps to reduce the adhesion of fly ash, which has a relieving effect on the rapping of the rapper to offset the rapping speed / frequency requirements, thereby extending the rapping cycle. , so the flue gas velocity With the rapping cycle Negatively correlated. Load fluctuation The larger the value, the more uncertainty there is in the accumulation of fly ash on the flue, and there is a need to increase the frequency of vibration and shorten the vibration cycle. , so the load fluctuates With the rapping cycle Negatively correlated. The larger the value, the greater the demand for vibration intensity, and the vibration cycle needs to be compressed. , so the dust thickness With the rapping cycle The stronger the dust stickiness (the value corresponding to the level The larger the vibration is, the more difficult it is to remove the dust at the corresponding position, and the greater the vibration intensity required, the need to shorten the vibration cycle. , so the dust viscosity grade With compression rapping cycle On this basis, the influence of various factors on the accumulation of ash on the flue is ranked as follows: ash viscosity level >Dust accumulation thickness >Flue gas flow rate >Load fluctuation , so the exponential coefficients corresponding to the four factors are -3<-2<-1.5<-0.5 respectively.

[0089] The following is a description of a device for achieving control to reduce flue fly ash adhesion provided in an embodiment of the present application. The device for achieving control to reduce flue fly ash adhesion described below and the control method for achieving reduction of flue fly ash adhesion described above can be referenced to each other.

[0090] See also Figure 3 , Figure 3 This is a schematic diagram of the structure of a device for reducing the adhesion of flue fly ash disclosed in an embodiment of the present application.

[0091] like Figure 3 As shown, the device may include:

[0092] The data acquisition unit 11 is used to acquire, at the end time of the current adjustment cycle, the current load data of the reaction tower in the current adjustment cycle, the flue gas flow rate in the flue, and the flue dust accumulation video recorded by the camera, wherein the duration of the flue dust accumulation video is the period from the start time to the end time of the current adjustment cycle;

[0093] A load fluctuation determination unit 12, configured to determine the load fluctuation according to the reference load data of the reaction tower in the previous adjustment cycle and the current load data;

[0094] The dust accumulation data identification unit 13 is used to identify the dust accumulation thickness and the dust accumulation viscosity on the flue from the flue dust accumulation video;

[0095] The rapping adjustment unit 14 is used to adjust the rapping frequency and rapping intensity of the four rappers respectively according to the flue gas flow rate, the load fluctuation, the ash thickness and the ash viscosity.

[0096] Optionally, the dust accumulation data identification unit includes:

[0097] An ash accumulation thickness recognition unit, used to recognize the ash accumulation thickness at each rapper on the flue from the last frame of the flue ash accumulation video;

[0098] The ash adhesion level determination unit is used for determining, for each target position of the rapper on the flue, that in the flue ash accumulation video, if the ash accumulation height at the target position changes from high to low, then the ash adhesion at the target position is determined to be a light adhesion level; if the ash accumulation height changes from high to low and then to high, or from low to high and then to low, then the ash adhesion at the target position is determined to be a medium adhesion level; if the ash accumulation height changes from low to high, then the ash adhesion at the target position is determined to be a heavy adhesion level.

[0099] Optionally, the rapping adjustment unit comprises:

[0100] The rapping parameter calculation unit is used to calculate the rapping adjustment force of each rapper using a first formula, and to calculate the rapping adjustment frequency of the rapper using a second formula, wherein the first formula is:

[0101]

[0102] in, To adjust the vibration intensity, is the upper limit of the rapping of the rapper, is the ash accumulation viscosity of the rapper at the target position on the flue, , Indicates the mild adhesion level, Indicates the moderate adhesion level, Indicates the severe adhesion level, is the ash accumulation thickness at the rapper on the flue, is the historical maximum dust accumulation thickness at the rapper, is the flue gas flow rate, is the historical maximum flue gas velocity of the flue, For the load fluctuation, , is the historical maximum load increase of the reaction tower, is the historical maximum load reduction of the reaction tower, is the ceiling function, is the current rapping intensity of the rapper, Adjusting the rapping intensity of the rapper;

[0103] The second formula is:

[0104]

[0105] in, is the rapping cycle of the rapper, Adjust the base number for the rapping cycle time. adjusting a frequency for rapping of the rapper;

[0106] A frequency intensity adjustment unit is used to adjust the rapping frequency and rapping intensity of the rapper based on the rapping adjustment frequency and rapping adjustment intensity of the rapper.

[0107] The control device for reducing flue fly ash adhesion provided in the embodiment of the present application can be applied to control equipment for reducing flue fly ash adhesion, such as a rapper control cabinet. Figure 4 The hardware structure block diagram of the control device for reducing flue fly ash adhesion is shown in FIG. Figure 4 , the hardware structure of the control device for reducing flue fly ash adhesion may include: at least one processor 10, at least one communication interface 20, at least one memory 30 and at least one communication bus 40;

[0108] In the embodiment of the present application, the number of the processor 10, the communication interface 20, the memory 30, and the communication bus 40 is at least one, and the processor 10, the communication interface 20, and the memory 3 communicate with each other through the communication bus 40;

[0109] The processor 10 may be a central processing unit (CPU), or an application-specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of the present invention;

[0110] The memory 30 may include a high-speed RAM memory, and may also include a non-volatile memory, such as at least one disk memory;

[0111] The memory stores a program, and the processor can call the program stored in the memory, wherein the program is used to:

[0112] At the end time of the current adjustment cycle, the current load data of the reaction tower in the current adjustment cycle, the flue gas flow rate in the flue, and the flue dust accumulation video recorded by the camera are obtained, and the duration of the flue dust accumulation video is the period from the start time to the end time of the current adjustment cycle;

[0113] Determining load fluctuations according to reference load data of the reaction tower in a previous adjustment cycle and the current load data;

[0114] Identify the thickness and viscosity of the ash deposits on the flue from the flue ash deposit video;

[0115] The rapping frequency and rapping intensity of the four rappers are adjusted respectively according to the flue gas flow rate, the load fluctuation, the ash accumulation thickness and the ash accumulation viscosity.

[0116] Optionally, the detailed functions and extended functions of the program may refer to the above description.

[0117] The embodiment of the present application further provides a storage medium, which may store a program suitable for execution by a processor, wherein the program is used to:

[0118] At the end time of the current adjustment cycle, the current load data of the reaction tower in the current adjustment cycle, the flue gas flow rate in the flue, and the flue dust accumulation video recorded by the camera are obtained, and the duration of the flue dust accumulation video is the period from the start time to the end time of the current adjustment cycle;

[0119] Determining load fluctuations according to reference load data of the reaction tower in a previous adjustment cycle and the current load data;

[0120] Identify the thickness and viscosity of the ash deposits on the flue from the flue ash deposit video;

[0121] The rapping frequency and rapping intensity of the four rappers are adjusted respectively according to the flue gas flow rate, the load fluctuation, the ash accumulation thickness and the ash accumulation viscosity.

[0122] Optionally, the detailed functions and extended functions of the program may refer to the above description.

[0123] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0124] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The various embodiments can be combined as needed, and the same or similar parts can refer to each other.

[0125] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A control method for reducing flue fly ash adhesion, It is characterized in that A rapper control cabinet used for controlling the operation of a rapper in a flue, wherein a reaction tower is connected to a bag filter through the flue, a wall of the flue is covered with a smooth coating, a camera and four rappers are installed on the flue, and the four rappers are arranged on the flue at the four corners of a square, and the side length of the square is a preset distance, and each rapper raps the flue with its rapping frequency and rapping force, and the camera and each rapper are communicatively connected to the rapper control cabinet; The method includes: At the end time of the current adjustment cycle, the current load data of the reaction tower in the current adjustment cycle, the flue gas flow rate in the flue, and the flue dust accumulation video recorded by the camera are obtained, and the duration of the flue dust accumulation video is the period from the start time to the end time of the current adjustment cycle; Determining load fluctuations according to reference load data of the reaction tower in a previous adjustment cycle and the current load data; Identify the thickness and viscosity of the ash deposits on the flue from the flue ash deposit video; The rapping frequency and rapping intensity of the four rappers are adjusted respectively according to the flue gas flow rate, the load fluctuation, the ash accumulation thickness and the ash accumulation viscosity.

2. The method according to claim 1, It is characterized in that From the flue dust accumulation video, identifying the dust accumulation thickness and dust accumulation viscosity on the flue, including: From the last frame of the flue dust accumulation video, identify the dust accumulation thickness at each rapper on the flue; For each target position of the rapper on the flue, in the flue ash accumulation video, if the ash accumulation height at the target position changes from high to low, then the ash accumulation viscosity at the target position is determined to be a light adhesion level; if the ash accumulation height changes from high to low and then to high, or from low to high and then to low, then the ash accumulation viscosity at the target position is determined to be a moderate adhesion level; if the ash accumulation height changes from low to high, then the ash accumulation viscosity at the target position is determined to be a heavy adhesion level.

3. The method according to claim 2, It is characterized in that According to the flue gas flow rate, the load fluctuation, the ash accumulation thickness and the ash accumulation viscosity, the rapping frequency and rapping intensity of the four rappers are adjusted respectively, including: For each of said rappers: The rapping adjustment intensity of the rapper is calculated using a first formula, and the rapping adjustment frequency of the rapper is calculated using a second formula, wherein the first formula is: in, To adjust the vibration intensity, is the upper limit of the rapping of the rapper, is the ash accumulation viscosity of the rapper at the target position on the flue, , Indicates the mild adhesion level, Indicates the moderate adhesion level, Indicates the severe adhesion level, is the ash accumulation thickness at the rapper on the flue, is the historical maximum dust accumulation thickness at the rapper, is the flue gas flow rate, is the historical maximum flue gas velocity of the flue, For the load fluctuation, , is the historical maximum load increase of the reaction tower, is the historical maximum load reduction of the reaction tower, is the ceiling function, is the current rapping intensity of the rapper, Adjusting the rapping intensity of the rapper; The second formula is: in, is the rapping cycle of the rapper, Adjust the base number for the rapping cycle time. adjusting a frequency for rapping of the rapper; Based on the rapping adjustment frequency and the rapping adjustment intensity of the rapper, the rapping frequency and the rapping intensity of the rapper are adjusted.

4. The method according to any one of claims 1 to 3, It is characterized in that The rapping force range of each rapper is 0~1176N, the initial rapping force of each rapper is the middle value of its rapping force range, and the initial rapping frequency of each rapper is once every 20 minutes.

5. The method according to any one of claims 1 to 3, It is characterized in that The smooth coating is a ceramic coating or a nano coating.

6. A control device for reducing flue fly ash adhesion, It is characterized in that A rapper control cabinet used for controlling the operation of a rapper in a flue, wherein a reaction tower is connected to a bag filter through the flue, a wall of the flue is covered with a smooth coating, a camera and four rappers are installed on the flue, and the four rappers are arranged on the flue at the four corners of a square, and the side length of the square is a preset distance, and each rapper raps the flue with its rapping frequency and rapping force, and the camera and each rapper are communicatively connected to the rapper control cabinet; The device includes: A data acquisition unit, used for acquiring, at the end time of the current adjustment period, the current load data of the reaction tower in the current adjustment period, the flue gas flow rate in the flue, and the flue dust accumulation video recorded by the camera, wherein the duration of the flue dust accumulation video is the period from the start time to the end time of the current adjustment period; A load fluctuation determination unit, configured to determine the load fluctuation according to the reference load data of the reaction tower in the previous adjustment cycle and the current load data; An ash accumulation data identification unit, used to identify the thickness and viscosity of ash accumulation on the flue from the flue ash accumulation video; The rapping adjustment unit is used to adjust the rapping frequency and rapping intensity of the four rappers respectively according to the flue gas flow rate, the load fluctuation, the ash thickness and the ash viscosity.

7. The device according to claim 1, It is characterized in that The dust accumulation data identification unit comprises: An ash accumulation thickness recognition unit, used to recognize the ash accumulation thickness at each rapper on the flue from the last frame of the flue ash accumulation video; The ash adhesion level determination unit is used for determining, for each target position of the rapper on the flue, that in the flue ash accumulation video, if the ash accumulation height at the target position changes from high to low, then the ash adhesion at the target position is determined to be a light adhesion level; if the ash accumulation height changes from high to low and then to high, or from low to high and then to low, then the ash adhesion at the target position is determined to be a medium adhesion level; if the ash accumulation height changes from low to high, then the ash adhesion at the target position is determined to be a heavy adhesion level.

8. The device according to claim 7, It is characterized in that The rapping adjustment unit comprises: The rapping parameter calculation unit is used to calculate the rapping adjustment force of each rapper using a first formula, and to calculate the rapping adjustment frequency of the rapper using a second formula, wherein the first formula is: in, To adjust the vibration intensity, is the upper limit of the rapping of the rapper, is the ash accumulation viscosity of the rapper at the target position on the flue, , Indicates the mild adhesion level, Indicates the moderate adhesion level, Indicates the severe adhesion level, is the ash accumulation thickness at the rapper on the flue, is the historical maximum dust accumulation thickness at the rapper, is the flue gas flow rate, is the historical maximum flue gas velocity of the flue, For the load fluctuation, , is the historical maximum load increase of the reaction tower, is the historical maximum load reduction of the reaction tower, is the ceiling function, is the current rapping intensity of the rapper, Adjusting the rapping intensity of the rapper; The second formula is: in, is the rapping cycle of the rapper, Adjust the base number for the rapping cycle time. adjusting a frequency for rapping of the rapper; A frequency intensity adjustment unit is used to adjust the rapping frequency and rapping intensity of the rapper based on the rapping adjustment frequency and rapping adjustment intensity of the rapper.

9. A control device for reducing the adhesion of flue fly ash, It is characterized in that including memory and processor; The memory is used to store programs; The processor is used to execute the program to implement each step of the control method for reducing flue fly ash adhesion as described in any one of claims 1 to 5.

10. A storage medium having a computer program stored thereon, It is characterized in that When the computer program is executed by a processor, each step of the control method for reducing flue fly ash adhesion as described in any one of claims 1 to 5 is implemented.

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