A domestic waste incineration working condition control system based on low dioxin emission target
By classifying municipal solid waste and analyzing incinerator matching, intelligent and automated municipal solid waste incineration has been achieved, solving the problem of poor dioxin emission control and reducing monitoring costs and incinerator wear.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SOUTH CHINA INST OF ENVIRONMENTAL SCI MEP
- Filing Date
- 2023-08-09
- Publication Date
- 2026-04-17
AI Technical Summary
Existing technologies cannot select appropriate incineration temperatures and incinerators based on the type of waste during municipal solid waste incineration, resulting in poor dioxin emission control and high incineration monitoring costs, making it impossible to achieve intelligent and precise control.
The waste is classified through the household waste sorting module, and basic information of each type of waste is obtained. This information is then matched and analyzed with the incinerator information to monitor the incineration process, determine the incineration status, and adjust and control the temperature and wind speed.
It has realized the intelligent and automated incineration of municipal solid waste, reduced dioxin emissions, improved incineration efficiency and environmental performance, and reduced the wear and tear on incinerators.
Smart Images

Figure CN117053205B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of dioxin emission control technology, and more specifically to a municipal solid waste incineration control system based on a low dioxin emission target. Background Technology
[0002] Dioxins are pollutants produced during combustion, especially during the incineration of municipal solid waste. To reduce dioxin emissions during municipal solid waste incineration, it is necessary to control the incineration conditions.
[0003] Current technologies for controlling dioxin emissions during municipal solid waste incineration primarily focus on controlling the temperature and oxygen supply in the incinerator. Clearly, this approach has at least the following problems:
[0004] 1. Current technology for incinerating municipal solid waste does not classify waste according to its material composition. Therefore, it cannot select the appropriate incineration temperature based on the type of waste, failing to demonstrate intelligent temperature selection during waste incineration. On the other hand, different types of waste emit different concentrations of dioxins. Since current technology does not classify waste, in-depth monitoring of each incinerator is required during incineration monitoring. It is impossible to allocate incineration monitoring equipment according to the type of waste in the incinerator, thereby increasing the cost of incineration monitoring.
[0005] 2. The operating conditions of the incinerator affect the accuracy of incinerator temperature control. Current technology does not take into account the operating conditions of the incinerator when controlling the combustion temperature, thus failing to improve the accuracy of temperature control. On the other hand, the incinerator is not selected according to the type of waste and the operating conditions of the incinerator, which fails to effectively improve the waste incineration effect and cannot guarantee the control effect during waste incineration, resulting in a decline in the dioxin emission control effect. Summary of the Invention
[0006] To address the aforementioned technical shortcomings, the purpose of this invention is to provide a municipal solid waste incineration operating condition control system based on a low dioxin emission target.
[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The present invention provides a municipal solid waste incineration operating condition control system based on a low dioxin emission target, including: a municipal solid waste classification module, used to classify the municipal solid waste to be incinerated in the municipal solid waste incineration plant, obtain the corresponding municipal solid waste for each category, and then obtain the basic information corresponding to each category of municipal solid waste.
[0008] The incinerator information acquisition module is used to acquire basic information about each incinerator in a municipal solid waste incineration plant.
[0009] The incineration matching analysis module is used to analyze the matching incinerators and incineration sequence for each type of municipal solid waste based on the basic information corresponding to each type of municipal solid waste and the basic information corresponding to each incinerator, and to analyze the reference incineration information corresponding to each type of municipal solid waste.
[0010] The incineration process monitoring module is used to incinerate each type of municipal solid waste according to the corresponding incinerator, incineration sequence, and reference incineration information. It also sets up monitoring points and monitoring time points during the incineration process of each type of municipal solid waste, thereby monitoring the incineration of each type of municipal solid waste at each monitoring time point. This allows the module to obtain the dioxin concentration of each type of municipal solid waste at each monitoring time point and the actual incineration information of each type of municipal solid waste at each monitoring time point corresponding to the corresponding incinerator.
[0011] The incineration status judgment module is used to determine whether the incineration status of each type of municipal solid waste is qualified based on the dioxin concentration of each monitoring point in the incinerator at each monitoring time point. If the incineration status of a certain type of municipal solid waste is not qualified, the municipal solid waste of that type is recorded as the target type of municipal solid waste, thereby obtaining the municipal solid waste of each target type.
[0012] The incinerator equipment analysis module is used to obtain reference incineration information for each target category of municipal solid waste and actual incineration information for each monitoring time point, and to analyze the incineration influencing factors for each target category of municipal solid waste.
[0013] The incinerator incineration control module is used to analyze the incineration adjustment information of the incinerator corresponding to each target category of municipal solid waste based on the incineration influencing factors of each target category of municipal solid waste, and to perform incineration control.
[0014] Preferably, the process of classifying the municipal solid waste awaiting incineration at the municipal solid waste incineration plant involves the following specific classification steps:
[0015] A1. The municipal solid waste to be incinerated is transported to the feeding hopper, and a camera is installed above the hopper to collect images of each piece of waste in the municipal solid waste to be incinerated.
[0016] A2. Compare the images of each piece of waste in the municipal solid waste to be incinerated with the preset image sets corresponding to each category of waste. If the image of a piece of waste in the municipal solid waste to be incinerated is the same as an image in the preset image set corresponding to a certain category of waste, then that category of waste is taken as the category of that waste in the municipal solid waste to be incinerated. In this way, the category corresponding to each piece of waste in the municipal solid waste to be incinerated is obtained.
[0017] A3. According to the corresponding category of each type of waste, each type of waste is transported to the pre-set placement area corresponding to that category for storage, thereby completing the classification of the domestic waste to be incinerated.
[0018] Preferably, the basic information corresponding to each category of household waste includes hazard level, weight, and incineration level;
[0019] The basic information for each incinerator includes usage duration, maintenance frequency, and combustion capacity;
[0020] Reference incineration information for each category of municipal solid waste includes reference incineration temperature and reference blower velocity.
[0021] The actual incineration information of each type of municipal solid waste at each monitoring time point includes the actual incineration temperature and the actual blower speed.
[0022] Preferably, the process of analyzing the corresponding incinerators and incineration sequences for each type of municipal solid waste is as follows:
[0023] B1. Calculate the incineration difficulty assessment coefficient for each category of household waste by using the incineration difficulty assessment coefficient calculation formula. Then, compare the incineration difficulty assessment coefficient for each category of household waste with the preset incineration difficulty assessment coefficient range for each incineration difficulty level to obtain the incineration difficulty level for each category of household waste.
[0024] B2. Based on the basic information of each incinerator, the incineration capacity assessment coefficient of each incinerator is obtained. Then, based on the reference incineration difficulty level corresponding to each incinerator, the reference incineration difficulty level of each incinerator is obtained.
[0025] B3. Compare the incineration difficulty level corresponding to each category of municipal solid waste with the reference incineration difficulty level corresponding to each incinerator. If the incineration difficulty level corresponding to a certain category of municipal solid waste is the same as the reference incineration difficulty level corresponding to a certain incinerator, then the incinerator is determined to be the incinerator that matches the category of municipal solid waste. In this way, the incinerators that match the category of municipal solid waste are obtained.
[0026] B4. Extract the incineration difficulty assessment coefficients for each type of municipal solid waste in the same incinerator, and sort the incineration difficulty assessment coefficients in descending order. The sorting result is the incineration order for each type of municipal solid waste in the same incinerator.
[0027] Preferably, the formula for calculating the incineration difficulty assessment coefficient is: in D represents the incineration difficulty assessment coefficient corresponding to the i-th category of municipal solid waste. i Mi F i Let represent the hazard level, weight, and incineration level corresponding to the i-th category of household waste, respectively. D, M, and F are the set reference hazard level, reference weight, and reference incineration level, respectively. ε1, ε2, and ε3 are the set weight factors corresponding to the hazard level, weight, and incineration level, respectively. i represents the number corresponding to each category of household waste, i = 1, 2, ..., n.
[0028] Preferably, the analysis yields the incineration capacity assessment coefficients for each incinerator, and the specific analysis process is as follows:
[0029] Substitute the usage time, maintenance frequency, and combustion capacity of each incinerator into the calculation formula. In this process, the incineration capacity assessment coefficient α corresponding to each incinerator is obtained. j ST j C j R j γ1, γ2, and γ3 represent the usage duration, maintenance frequency, and combustion capacity corresponding to the j-th incinerator, respectively. ST, C, and R are the set reference usage duration, reference combustion frequency, and reference combustion capacity of the incinerator, respectively. γ1, γ2, and γ3 are the set weighting factors corresponding to the usage duration, maintenance frequency, and combustion capacity, respectively. j represents the number corresponding to each incinerator, j = 1, 2, ..., m.
[0030] Preferably, the specific judgment process for determining whether the incineration status of each type of municipal solid waste is qualified is as follows:
[0031] The dioxin concentrations of each type of municipal solid waste at each monitoring time point and corresponding incinerator are averaged to obtain the average dioxin concentration of each type of municipal solid waste incinerator. This average dioxin concentration is then used as the dioxin concentration of each type of municipal solid waste incinerator. The dioxin concentration of each type of municipal solid waste incinerator is compared with the set permissible dioxin concentration. If the dioxin concentration of a certain type of municipal solid waste incinerator is greater than the permissible dioxin concentration, the incineration of that type of municipal solid waste is deemed unqualified; otherwise, the incineration of that type of municipal solid waste is deemed qualified. This method is used to determine whether the incineration of each type of municipal solid waste is qualified.
[0032] Preferably, the analysis of incineration influencing factors for each target category of municipal solid waste is performed in the following specific analysis process:
[0033] The reference incineration temperature, reference blower velocity, actual incineration temperature, and actual blower velocity of the incinerator at each monitoring time point for each target category of municipal solid waste are denoted as T. i ′、v i ′、T″ it 、v″it Where t represents the number corresponding to each monitoring time point, t = 1, 2, ..., p;
[0034] According to the calculation formula The incineration impact factor κ of the corresponding incinerators for each target category of municipal solid waste was obtained. i η1 and η2 are the weighting factors corresponding to the set incinerator combustion temperature and blower wind speed, respectively.
[0035] Preferably, the incineration adjustment information includes incineration temperature adjustment value and blower wind speed adjustment value.
[0036] Preferably, the analysis of the incineration adjustment information of the incinerators corresponding to each target category of municipal solid waste is carried out in the following specific process:
[0037] According to the calculation formula The incineration temperature adjustment value ΔT for each target category of municipal solid waste was obtained. i , where p represents the number of monitoring time points, and σ represents the compensation factor corresponding to the incineration temperature adjustment value;
[0038] Similarly, by analyzing the incineration temperature adjustment values of the incinerators corresponding to each target category of municipal solid waste, the blower speed adjustment values of the incinerators corresponding to each target category of municipal solid waste were obtained.
[0039] The beneficial effects of this invention are as follows: 1. This invention provides a municipal solid waste incineration operating condition control system based on the goal of low dioxin emissions. By classifying the waste to be incinerated and selecting a suitable incinerator according to the combustion level of each type of municipal solid waste, the temperature of the incinerator and the wind speed of the blower are controlled according to the dioxin emissions during incineration. This solves the shortcomings of the existing technology, realizes intelligent and automated incineration of municipal solid waste, greatly improves the incineration effect of municipal solid waste, reduces dioxin emissions, and improves environmental protection.
[0040] 2. In the household waste sorting module, this invention sorts the waste to be incinerated, laying the foundation for the selection and allocation of subsequent incinerators. At the same time, during waste incineration, the appropriate incineration temperature can be selected according to the type of waste, which reflects the intelligence of temperature selection during waste incineration and thus improves the efficiency of waste incineration.
[0041] 3. In the incineration matching analysis module, this invention analyzes the corresponding incinerators and incineration sequence for each type of municipal solid waste, ensuring the orderly operation of waste incineration and making effective use of the incinerators, thus reducing wear and tear on the incinerators.
[0042] 4. This invention analyzes the combustion status of the incinerator in the incinerator equipment analysis module, providing a reference for subsequent incinerator temperature control analysis, ensuring the accuracy of temperature control during waste incineration, and also improving the waste incineration effect. Attached Figure Description
[0043] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0044] Figure 1 This is a schematic diagram of the system structure connection of the present invention. Detailed Implementation
[0045] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0046] Please see Figure 1 As shown, a municipal solid waste incineration operating condition control system based on a low dioxin emission target includes: a municipal solid waste sorting module, an incinerator information acquisition module, an incineration matching analysis module, an incineration process monitoring module, an incineration status judgment module, an incinerator equipment analysis module, and an incinerator incineration control module.
[0047] The incineration matching analysis module is connected to the municipal solid waste classification module, the incinerator information acquisition module, and the incineration process monitoring module, respectively. The incineration status judgment module is connected to the incineration process monitoring module and the incinerator equipment analysis module, respectively. The incinerator equipment analysis module is also connected to the incinerator incineration control module.
[0048] The household waste sorting module is used to sort the household waste to be incinerated in the household waste incineration plant to obtain the corresponding categories of household waste.
[0049] It should be noted that the categories of household waste include wood, textiles, and leather products, etc.
[0050] In one specific embodiment, the municipal solid waste to be incinerated in the municipal solid waste incineration plant is classified, and the specific classification steps are as follows:
[0051] A1. The municipal solid waste to be incinerated is transported to the feeding hopper, and a camera is installed above the hopper to collect images of each piece of waste in the municipal solid waste to be incinerated.
[0052] A2. Compare the images of each piece of waste in the municipal solid waste to be incinerated with the preset image sets corresponding to each category of waste. If the image of a piece of waste in the municipal solid waste to be incinerated is the same as an image in the preset image set corresponding to a certain category of waste, then that category of waste is taken as the category of that waste in the municipal solid waste to be incinerated. In this way, the category corresponding to each piece of waste in the municipal solid waste to be incinerated is obtained.
[0053] A3. According to the corresponding category of each type of waste, each type of waste is transported to the pre-set placement area corresponding to that category for storage, thereby completing the classification of the domestic waste to be incinerated.
[0054] This invention categorizes waste for incineration in the municipal solid waste sorting module, laying the foundation for the selection and allocation of subsequent incinerators. At the same time, it allows for the selection of appropriate incineration temperatures based on the type of waste during incineration, demonstrating intelligent temperature selection and thus improving the efficiency of waste incineration.
[0055] The household waste sorting module is also used to obtain basic information corresponding to each category of household waste.
[0056] The basic information for each category of household waste mentioned above includes hazard level, weight, and incineration level.
[0057] The standard hazard level and standard incineration level corresponding to each category of household waste are obtained from the pre-set waste management data, and then used as the standard hazard level and standard incineration level corresponding to each category of household waste.
[0058] Weight sensors are installed at the bottom of the pre-defined placement areas corresponding to each type of waste, and the weight of each type of waste is collected by the weight sensors.
[0059] The incinerator information acquisition module is used to acquire basic information about each incinerator in a municipal solid waste incineration plant.
[0060] The basic information for each incinerator mentioned above includes usage duration, maintenance frequency, and combustion capacity.
[0061] It should be noted that the usage time, maintenance frequency, and combustion capacity of each incinerator are obtained from the incinerator management center.
[0062] The incineration matching analysis module is used to analyze the matching incinerators and incineration sequence for each type of municipal solid waste based on the basic information corresponding to each type of municipal solid waste and the basic information corresponding to each incinerator.
[0063] In a specific embodiment, the corresponding incinerators and incineration sequence for each type of municipal solid waste are analyzed. The specific analysis process is as follows: B1. The basic information corresponding to each type of municipal solid waste is used to calculate the incineration difficulty assessment coefficient for each type of municipal solid waste through the incineration difficulty assessment coefficient calculation formula. Then, the incineration difficulty assessment coefficient for each type of municipal solid waste is compared with the preset incineration difficulty assessment coefficient range for each incineration difficulty level to obtain the incineration difficulty level for each type of municipal solid waste.
[0064] B2. Based on the basic information of each incinerator, the incineration capacity assessment coefficient of each incinerator is obtained. Then, based on the reference incineration difficulty level corresponding to each incinerator, the reference incineration difficulty level of each incinerator is obtained.
[0065] B3. Compare the incineration difficulty level corresponding to each category of municipal solid waste with the reference incineration difficulty level corresponding to each incinerator. If the incineration difficulty level corresponding to a certain category of municipal solid waste is the same as the reference incineration difficulty level corresponding to a certain incinerator, then the incinerator is determined to be the incinerator that matches the category of municipal solid waste. In this way, the incinerators that match the category of municipal solid waste are obtained.
[0066] B4. Extract the incineration difficulty assessment coefficients for each type of municipal solid waste in the same incinerator, and sort the incineration difficulty assessment coefficients in descending order. The sorting result is the incineration order for each type of municipal solid waste in the same incinerator.
[0067] In another specific embodiment, the formula for calculating the incineration difficulty assessment coefficient is: in D represents the incineration difficulty assessment coefficient corresponding to the i-th category of municipal solid waste. i M i F i Let represent the hazard level, weight, and incineration level corresponding to the i-th category of household waste, respectively. D, M, and F are the set reference hazard level, reference weight, and reference incineration level, respectively. ε1, ε2, and ε3 are the set weight factors corresponding to the hazard level, weight, and incineration level, respectively. i represents the number corresponding to each category of household waste, i = 1, 2, ..., n.
[0068] In another specific embodiment, the analysis yields the incineration capacity evaluation coefficients for each incinerator. The specific analysis process is as follows:
[0069] Substitute the usage time, maintenance frequency, and combustion capacity of each incinerator into the calculation formula. In this process, the incineration capacity assessment coefficient α corresponding to each incinerator is obtained. j STj C j R j γ1, γ2, and γ3 represent the usage duration, maintenance frequency, and combustion capacity corresponding to the j-th incinerator, respectively. ST, C, and R are the set reference usage duration, reference combustion frequency, and reference combustion capacity of the incinerator, respectively. γ1, γ2, and γ3 are the set weighting factors corresponding to the usage duration, maintenance frequency, and combustion capacity, respectively. j represents the number corresponding to each incinerator, j = 1, 2, ..., m.
[0070] This invention analyzes the matching incinerators and incineration sequence for each type of municipal solid waste, ensuring the orderly incineration of waste and making effective use of the incinerators while reducing wear and tear.
[0071] The incineration matching analysis module is also used to analyze the reference incineration information corresponding to each type of municipal solid waste.
[0072] The reference incineration information for each category of municipal solid waste includes reference incineration temperature and reference blower speed.
[0073] In another specific embodiment, the reference incineration information corresponding to each category of municipal solid waste is analyzed. The specific analysis process is as follows: the preset standard incineration temperature and standard blower speed corresponding to each category of municipal solid waste at each weight are obtained from the incineration control center, and then the standard incineration temperature and standard blower speed corresponding to each category of municipal solid waste at each weight are obtained. Based on the weight of each category of municipal solid waste, the standard incineration temperature and standard blower speed corresponding to each category of municipal solid waste are obtained and used as the reference incineration temperature and reference blower speed corresponding to each category of municipal solid waste.
[0074] The incineration process monitoring module is used to incinerate each type of municipal solid waste according to the corresponding incinerator, incineration sequence, and reference incineration information. It also sets up monitoring points and monitoring time points during the incineration process of each type of municipal solid waste, thereby monitoring the incineration of each type of municipal solid waste at each monitoring time point. This allows the module to obtain the dioxin concentration of each type of municipal solid waste at each monitoring time point and the actual incineration information of each type of municipal solid waste at each monitoring time point corresponding to the corresponding incinerator.
[0075] The actual incineration information of each type of municipal solid waste at each monitoring time point includes the actual incineration temperature and the actual blower speed.
[0076] Dioxin detectors are deployed at each monitoring point. The dioxin concentration at each monitoring point is then used to measure the dioxin concentration of each type of municipal solid waste at each monitoring time point during incineration.
[0077] Infrared thermometers are installed next to each incinerator. When each type of municipal solid waste is incinerated in its corresponding incinerator, the infrared thermometers collect the actual incineration temperature at each monitoring time point and use this data as the actual incineration temperature for each type of municipal solid waste at each monitoring time point. Speed sensors are installed in the blowers of each incinerator. When each type of municipal solid waste is incinerated in its corresponding incinerator, the speed sensors collect the actual blower speed at each monitoring time point and use this data as the actual blower speed for each type of municipal solid waste at each monitoring time point.
[0078] The incineration status judgment module is used to determine whether the incineration status of each type of municipal solid waste is qualified based on the dioxin concentration of each monitoring point in the incinerator at each monitoring time point. If the incineration status of a certain type of municipal solid waste is not qualified, the municipal solid waste of that type is recorded as the target type of municipal solid waste, thereby obtaining the municipal solid waste of each target type.
[0079] In a specific embodiment, the determination of whether the incineration of each type of municipal solid waste is qualified is carried out as follows: The dioxin concentration of each type of municipal solid waste at each monitoring point at each monitoring time point is averaged to obtain the average dioxin concentration of the incinerator corresponding to each type of municipal solid waste. The dioxin concentration of the incinerator corresponding to each type of municipal solid waste is compared with the set permissible dioxin concentration. If the dioxin concentration of the incinerator corresponding to a certain type of municipal solid waste is greater than the permissible dioxin concentration, the incineration of that type of municipal solid waste is determined to be unqualified; otherwise, the incineration of that type of municipal solid waste is determined to be qualified. This method is used to determine whether the incineration of each type of municipal solid waste is qualified.
[0080] The incinerator equipment analysis module is used to obtain reference incineration information for each target category of municipal solid waste and actual incineration information for each monitoring time point, and to analyze the incineration influencing factors for each target category of municipal solid waste.
[0081] In a specific embodiment, the incineration impact factors of the incinerators corresponding to each target category of municipal solid waste are analyzed. The specific analysis process is as follows:
[0082] The reference incineration temperature, reference blower velocity, actual incineration temperature, and actual blower velocity of the incinerator at each monitoring time point for each target category of municipal solid waste are denoted as T. i ′、v i ′、T″ it 、v″it Where t represents the number corresponding to each monitoring time point, t = 1, 2, ..., p;
[0083] According to the calculation formula The incineration impact factor κ of the corresponding incinerators for each target category of municipal solid waste was obtained. i η1 and η2 are the weighting factors corresponding to the set incinerator combustion temperature and blower wind speed, respectively.
[0084] This invention analyzes the combustion status of the incinerator in the incinerator equipment analysis module, providing a reference for subsequent incinerator temperature control analysis, ensuring the accuracy of temperature control during waste incineration, and also improving the waste incineration effect.
[0085] The incinerator incineration control module is used to analyze the incineration adjustment information of the incinerator corresponding to each target category of municipal solid waste based on the incineration influencing factors of each target category of municipal solid waste, and to perform incineration control.
[0086] The incineration adjustment information mentioned above includes the incineration temperature adjustment value and the blower speed adjustment value.
[0087] In a specific embodiment, the incineration adjustment information of the incinerators corresponding to each target category of municipal solid waste is analyzed. The specific analysis process is as follows: based on the calculation formula... The incineration temperature adjustment value ΔT for each target category of municipal solid waste was obtained. i , where p represents the number of monitoring time points, and σ represents the compensation factor corresponding to the incineration temperature adjustment value.
[0088] Similarly, by analyzing the incineration temperature adjustment values of the incinerators corresponding to each target category of municipal solid waste, the blower speed adjustment values of the incinerators corresponding to each target category of municipal solid waste were obtained.
[0089] This invention addresses the shortcomings of existing technologies by classifying waste to be incinerated and selecting suitable incinerators based on the combustion levels of each type of municipal solid waste. Furthermore, it controls the temperature of the incinerator and the wind speed of the blower based on dioxin emissions during incineration. This achieves intelligent and automated incineration of municipal solid waste, greatly improving the incineration efficiency, reducing dioxin emissions, and enhancing environmental protection.
[0090] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.
Claims
1. A municipal solid waste incineration operating condition control system based on a low dioxin emission target, characterized in that, include: The municipal solid waste sorting module is used to sort the municipal solid waste to be incinerated in the municipal solid waste incineration plant, obtain the corresponding municipal solid waste for each category, and then obtain the basic information of each category of municipal solid waste. The incinerator information acquisition module is used to acquire basic information about each incinerator in a municipal solid waste incineration plant. The incineration matching analysis module is used to analyze the matching incinerators and incineration sequence for each type of municipal solid waste based on the basic information corresponding to each type of municipal solid waste and the basic information corresponding to each incinerator, and to analyze the reference incineration information corresponding to each type of municipal solid waste. The incineration process monitoring module is used to incinerate each type of municipal solid waste according to the corresponding incinerator, incineration sequence, and reference incineration information. It also sets up monitoring points and monitoring time points during the incineration process of each type of municipal solid waste, thereby monitoring the incineration of each type of municipal solid waste at each monitoring time point. This allows the module to obtain the dioxin concentration of each type of municipal solid waste at each monitoring time point and the actual incineration information of each type of municipal solid waste at each monitoring time point corresponding to the corresponding incinerator. The incineration status judgment module is used to determine whether the incineration status of each type of municipal solid waste is qualified based on the dioxin concentration of each monitoring point in the incinerator at each monitoring time point. If the incineration status of a certain type of municipal solid waste is not qualified, the municipal solid waste of that type is recorded as the target type of municipal solid waste, thereby obtaining the target type of municipal solid waste. The incinerator equipment analysis module is used to obtain reference incineration information for each target category of municipal solid waste and actual incineration information for each monitoring time point, and to analyze the incineration influencing factors for each target category of municipal solid waste. The incinerator incineration control module is used to analyze the incineration adjustment information of the incinerator corresponding to each target category of municipal solid waste based on the incineration influencing factors of each target category of municipal solid waste, and to perform incineration control.
2. The municipal solid waste incineration operating condition control system based on a low dioxin emission target as described in claim 1, characterized in that, The process of classifying the municipal solid waste awaiting incineration at the waste incineration plant is as follows: A1. The municipal solid waste to be incinerated is transported to the feeding hopper, and a camera is installed above the hopper to collect images of each piece of waste in the municipal solid waste to be incinerated. A2. Compare the images of each piece of waste in the municipal solid waste to be incinerated with the preset image sets corresponding to each category of waste. If the image of a piece of waste in the municipal solid waste to be incinerated is the same as an image in the preset image set corresponding to a certain category of waste, then that category of waste is taken as the category of that waste in the municipal solid waste to be incinerated. In this way, the category corresponding to each piece of waste in the municipal solid waste to be incinerated is obtained. A3. According to the corresponding category of each type of waste, each type of waste is transported to the pre-set placement area corresponding to that category for storage, thereby completing the classification of the domestic waste to be incinerated.
3. The municipal solid waste incineration operating condition control system based on the low dioxin emission target as described in claim 1, characterized in that, The basic information corresponding to each category of household waste includes hazard level, weight, and incineration level. The basic information for each incinerator includes usage duration, maintenance frequency, and combustion capacity; Reference incineration information for each category of municipal solid waste includes reference incineration temperature and reference blower velocity. The actual incineration information of each type of municipal solid waste at each monitoring time point includes the actual incineration temperature and the actual blower speed.
4. The municipal solid waste incineration operating condition control system based on a low dioxin emission target as described in claim 3, characterized in that, The process of analyzing the corresponding incinerators and incineration sequences for each type of municipal solid waste is as follows: B1. Calculate the incineration difficulty assessment coefficient for each category of household waste by using the incineration difficulty assessment coefficient calculation formula. Then, compare the incineration difficulty assessment coefficient for each category of household waste with the preset incineration difficulty assessment coefficient range for each incineration difficulty level to obtain the incineration difficulty level for each category of household waste. B2. Based on the basic information of each incinerator, the incineration capacity assessment coefficient of each incinerator is obtained. Then, based on the reference incineration difficulty level corresponding to each incinerator, the reference incineration difficulty level of each incinerator is obtained. B3. Compare the incineration difficulty level corresponding to each category of municipal solid waste with the reference incineration difficulty level corresponding to each incinerator. If the incineration difficulty level corresponding to a certain category of municipal solid waste is the same as the reference incineration difficulty level corresponding to a certain incinerator, then the incinerator is determined to be the incinerator that matches the category of municipal solid waste. In this way, the incinerators that match the category of municipal solid waste are obtained. B4. Extract the incineration difficulty assessment coefficients for each type of municipal solid waste in the same incinerator, and sort the incineration difficulty assessment coefficients in descending order. The sorting result is the incineration order for each type of municipal solid waste in the same incinerator.
5. A municipal solid waste incineration operating condition control system based on a low dioxin emission target as described in claim 4, characterized in that, The formula for calculating the incineration difficulty assessment coefficient is as follows: in D represents the incineration difficulty assessment coefficient corresponding to the i-th category of municipal solid waste. i M i F i Let represent the hazard level, weight, and incineration level corresponding to the i-th category of household waste, respectively. D, M, and F are the set reference hazard level, reference weight, and reference incineration level, respectively. ε1, ε2, and ε3 are the set weight factors corresponding to the hazard level, weight, and incineration level, respectively. i represents the number corresponding to each category of household waste, i = 1, 2, ..., n.
6. A municipal solid waste incineration operating condition control system based on a low dioxin emission target as described in claim 4, characterized in that, The analysis yielded the incineration capacity assessment coefficients for each incinerator. The specific analysis process is as follows: Substitute the usage time, maintenance frequency, and combustion capacity of each incinerator into the calculation formula. In this process, the incineration capacity assessment coefficient α corresponding to each incinerator is obtained. j ST j C j R j γ1, γ2, and γ3 represent the usage duration, maintenance frequency, and combustion capacity corresponding to the j-th incinerator, respectively. ST, C, and R are the set reference usage duration, reference combustion frequency, and reference combustion capacity of the incinerator, respectively. γ1, γ2, and γ3 are the set weighting factors corresponding to the usage duration, maintenance frequency, and combustion capacity, respectively. j represents the number corresponding to each incinerator, j = 1, 2, ..., m.
7. A municipal solid waste incineration operating condition control system based on a low dioxin emission target as described in claim 1, characterized in that, The specific process for determining whether the incineration of each type of municipal solid waste is up to standard is as follows: The dioxin concentrations of each type of municipal solid waste at each monitoring time point and corresponding incinerator are averaged to obtain the average dioxin concentration of each type of municipal solid waste incinerator. This average dioxin concentration is then used as the dioxin concentration of each type of municipal solid waste incinerator. The dioxin concentration of each type of municipal solid waste incinerator is compared with the set permissible dioxin concentration. If the dioxin concentration of a certain type of municipal solid waste incinerator is greater than the permissible dioxin concentration, the incineration of that type of municipal solid waste is deemed unqualified; otherwise, the incineration of that type of municipal solid waste is deemed qualified. This method is used to determine whether the incineration of each type of municipal solid waste is qualified.
8. A municipal solid waste incineration operating condition control system based on a low dioxin emission target as described in claim 5, characterized in that, The incineration influencing factors for each target category of municipal solid waste were analyzed in the corresponding incinerators. The specific analysis process is as follows: The reference incineration temperature, reference blower velocity, actual incineration temperature, and actual blower velocity of the incinerator at each monitoring time point for each target category of municipal solid waste are denoted as T. i ′、v′ i 、T″ it v″ it Where t represents the number corresponding to each monitoring time point, t = 1, 2, ..., p; According to the calculation formula The incineration impact factor κ of the corresponding incinerators for each target category of municipal solid waste was obtained. i η1 and η2 are the weighting factors corresponding to the set incinerator combustion temperature and blower wind speed, respectively.
9. A municipal solid waste incineration operating condition control system based on a low dioxin emission target as described in claim 8, characterized in that, The incineration adjustment information includes incineration temperature adjustment value and blower wind speed adjustment value.
10. A municipal solid waste incineration operating condition control system based on a low dioxin emission target as described in claim 9, characterized in that, The analysis of incineration adjustment information for incinerators corresponding to each target category of municipal solid waste is as follows: According to the calculation formula The incineration temperature adjustment value ΔT for each target category of municipal solid waste was obtained. i , where p represents the number of monitoring time points, and σ represents the compensation factor corresponding to the incineration temperature adjustment value; Similarly, by analyzing the incineration temperature adjustment values of the incinerators corresponding to each target category of municipal solid waste, the blower speed adjustment values of the incinerators corresponding to each target category of municipal solid waste were obtained.
Citation Information
Patent Citations
Air quality prediction method and system based on smoke from household waste burning
CN108681792A
Incinerator capable of classifying and stirring garbage
CN112283711A