CN116557873B - Online ash vitrification rotary melting method and system for solid waste incineration treatment - Google Patents
Online ash vitrification rotary melting method and system for solid waste incineration treatment Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 82
- 238000004017 vitrification Methods 0.000 title claims abstract description 33
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- 238000002844 melting Methods 0.000 title claims abstract description 22
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/50—Control or safety arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Incineration Of Waste (AREA)
Abstract
The application relates to the technical field of solid waste treatment, in particular to a solid waste incineration treatment online ash vitrification rotary melting method and a system, wherein the method comprises the following steps: s100: detecting the treatment state of the hazardous waste and obtaining the treatment characteristic information of the hazardous waste; s200: acquiring processing expected information of the hazardous waste in a processing stage, and acquiring a hazardous waste characteristic analysis result according to the hazardous waste processing characteristic information and the processing expected information; the hazardous waste characteristic analysis results include: a first deviation value and a first deviation rate between the hazardous waste treatment characteristic information and the treatment desired information; s300: inputting the first deviation value and the first deviation rate into an adaptive adjustment module to obtain correction adjustment data; s400: and carrying out real-time adjustment on the deviation of the hazardous waste incineration process data by correcting the adjustment data. The application effectively solves the deviation problem of incineration process data for treating various dangerous wastes, realizes minimization of ash recycling pollution, and improves incineration efficiency and ash vitrification.
Description
Technical Field
The application relates to the technical field of solid waste treatment, in particular to an online ash vitrification rotary melting method and system for solid waste incineration treatment.
Background
The incineration method for treating solid waste has the advantages of obvious volume reduction, heat energy recovery and the like, so that the incineration method becomes one of the main methods for treating hazardous waste at home and abroad, but residues and fly ash generated in the incineration treatment process contain high-concentration heavy metals, dioxin and other harmful substances, and serious environmental pollution can be caused if the incineration treatment is not performed again.
At present, related standards in China clearly list ash slag generated by hazardous waste incineration as hazardous waste, so that harmless treatment is required. The solid waste vitrification treatment technology is hopeful to solve the difficult problem of recycling of dangerous waste, and the technology heats the solid waste to a temperature above the melting point of the solid waste through plasma, high-temperature melting or electrochemical methods and the like, then rapidly cools the solid waste to obtain amorphous structure glassy substances with strong stability and smaller volume, and the vitreous body locks heavy metals contained in the dangerous waste and dioxin substances in incineration residues in the melt, so that the technology has the characteristics of low leaching toxicity, high environmental stability and the like. In the process of incinerating hazardous waste, because of large differences of materials, quality, density and the like among hazardous waste, the whole incineration process is difficult to comprehensively control by fixed incineration process parameters, and the incineration process data deviation can seriously influence the vitrification treatment of ash slag, so that secondary pollution is easy to cause.
The information disclosed in this background section is only for enhancement of understanding of the general background of the disclosure and is not to be taken as an admission or any form of suggestion that this information forms the prior art that is well known to a person skilled in the art.
Disclosure of Invention
The application provides an online ash vitrification rotary melting method for solid waste incineration treatment, which can effectively solve the problems in the background technology.
In order to achieve the above purpose, the technical scheme adopted by the application is as follows:
an on-line ash vitrification rotary melting method for solid waste incineration treatment, which comprises the following steps:
s100: detecting the treatment state of the hazardous waste and obtaining the treatment characteristic information of the hazardous waste;
s200: acquiring processing expected information of the hazardous waste in a processing stage, and acquiring a hazardous waste characteristic analysis result according to the hazardous waste processing characteristic information and the processing expected information; the hazardous waste characteristic analysis result comprises: a first deviation value and a first deviation rate between the hazardous waste treatment characteristic information and the treatment desired information;
s300: inputting the first deviation value and the first deviation rate into an adaptive adjustment module, and obtaining correction adjustment data;
s400: and carrying out real-time adjustment on the deviation of the hazardous waste incineration process data according to the correction and adjustment data.
Further, the method comprises: setting a first measuring point, a second measuring point, a third measuring point and a fourth measuring point; the first measuring point, the second measuring point, the third measuring point and the fourth measuring point are sequentially distributed on the feed inlet, the incinerator, the quenching tower and the exhaust flue, and dynamic parameters are correspondingly acquired through the measuring points respectively; and obtaining the hazardous waste treatment characteristic information through the dynamic parameters.
Further, the method comprises: and obtaining a thickness analysis result, a density analysis result and a fermentation analysis result of the hazardous waste through the first measuring point.
Further, the method comprises: and obtaining a decrement ratio analysis result, a thermal ignition decrement analysis result and an incineration efficiency analysis result through the second measuring point.
Further, the decrement ratio analysis result is obtained by adopting the following formula:
wherein MRC is the reduction ratio, ma is the mass of incineration residues, mb is the mass of added waste, and mc is the mass of incombustible in the residues.
Further, the thermal ignition loss analysis result was obtained using the following formula:
wherein QR is the thermal ignition quantity, mx is the mass of the incineration residue at room temperature, and my is the mass of the incineration residue after ignition and cooling to room temperature.
Further, the incineration efficiency analysis result is obtained by adopting the following formula:
wherein CE is incineration efficiency, CO and CO 2 The concentration values of the gases in the flue gas respectively.
Further, the method comprises: and obtaining a waste heat analysis result, a slag analysis result and a fly ash analysis result through the third measuring point.
Further, the method comprises: and obtaining a fire grate speed analysis result and an oxygen concentration analysis result through the fourth measuring point.
Further, the method further comprises: judging whether the correction adjustment data is in a threshold interval or not, and if so, outputting data; and if the self-adaptive adjustment module is outside the threshold value interval, re-inputting the self-adaptive adjustment module.
Further, the operation of the adaptive adjustment module at least includes:
and rapidly eliminating errors when the deviation of the hazardous waste characteristic analysis result exceeds a set limit value, eliminating steady-state errors of average deviation of the hazardous waste characteristic analysis result, and predicting error trend changes of the hazardous waste characteristic analysis result.
An on-line ash vitrification rotary melting system for solid waste incineration treatment, the system comprising:
the first acquisition unit is used for detecting the treatment state of the hazardous waste and acquiring the treatment characteristic information of the hazardous waste;
the second acquisition unit is used for acquiring processing expected information of the hazardous waste in a processing stage and acquiring a hazardous waste characteristic analysis result according to the hazardous waste processing characteristic information and the processing expected information;
the first processing unit is used for inputting the first deviation value and the first deviation rate into the adaptive adjustment module and obtaining correction adjustment data.
Further, the first processing unit includes:
the first deviation correcting unit is used for rapidly eliminating errors when the deviation of the dangerous waste characteristic analysis result exceeds a set limit value;
the second deviation rectifying unit is used for eliminating steady-state errors of average deviation of the dangerous waste characteristic analysis results;
and the third deviation rectifying unit predicts the error trend change of the hazardous waste characteristic analysis result.
By the technical scheme of the application, the following technical effects can be realized:
the method effectively solves the deviation problem of incineration process data for treating various different hazardous wastes, minimizes the secondary pollution of heavy metal in the process of recycling the ash, improves the incineration efficiency and the ash vitrification, and has very broad market prospect and commercial operation prospect.
The foregoing description is only an overview of the present application, and is intended to be implemented in accordance with the teachings of the present application in order that the same may be more clearly understood and to make the same and other objects, features and advantages of the present application more readily apparent.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings may be obtained according to the drawings without inventive effort to those skilled in the art.
FIG. 1 is a schematic flow diagram of an on-line ash vitrification rotary melting method for solid waste incineration treatment;
FIG. 2 is a schematic diagram of the collection of hazardous waste treatment signature information;
FIG. 3 is a block diagram of a unit of an adaptive adjustment module;
FIG. 4 is a schematic diagram of the structure of the on-line ash vitrification rotary melting system for solid waste incineration treatment;
reference numerals: 10. a first acquisition unit; 20. a second acquisition unit; 30. a first processing unit; 31. a first deviation rectifying unit; 32. a second deviation rectifying unit; 33. and a third deviation rectifying unit.
Detailed Description
The application solves the problem of deviation of incineration process data for treating various dangerous wastes by providing the on-line ash vitrification rotary melting method and system for solid waste incineration treatment, realizes the minimization of secondary pollution of heavy metal in the ash resource utilization process, improves the incineration efficiency and ash vitrification, and has very broad market prospect and commercial operation prospect.
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments.
The terms first, second and the like in the description and in the claims and in the above-described figures, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances and are merely illustrative of the manner in which embodiments of the application have been described in connection with the description of the objects having the same attributes. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of elements is not necessarily limited to those elements, but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Example 1
As shown in fig. 1, the present application provides an on-line ash vitrification rotary melting method for solid waste incineration treatment, comprising:
s100: detecting the treatment state of the hazardous waste and obtaining the treatment characteristic information of the hazardous waste;
specifically, the hazardous waste is conveyed into the incineration device, the state of the hazardous waste is detected through the arrangement of the detection device, the hazardous waste treatment information after each treatment process is conveniently obtained, and as the treatment process of the hazardous waste needs longer treatment time, the process parameter deviation data can be adjusted and modified according to the timed detection so as to adapt to the treatment of different hazardous wastes, wherein the detection device is selected by the detection attribute, a sensor, a scanner or a tester can be used for respectively and respectively arranged at a preset detection point, and the detection device can adopt a voltage signal output by an electrometer to carry out analog/digital conversion through an A/D converter. S100, detecting the treatment state of the hazardous waste, and obtaining the treatment characteristics of the hazardous waste through detection, wherein the characteristic acquisition of the treatment process can provide an important reference for correcting technological parameters for on-line ash vitrification in incineration treatment.
Furthermore, for the detection of the same attribute, a plurality of detection instruments can be arranged at different positions, and related data such as average values and extreme values of a plurality of parameters of the attribute can be obtained, the multi-point detection of the plurality of attributes can effectively ensure the accuracy of detection values, and errors are eliminated to the maximum degree from the detection stage, for example, the detection of the temperature and humidity in the furnace at the position in a feed inlet, and the control of the humidity and the temperature adopts multi-point acquisition, wherein the average values can reflect the average temperature and humidity state in the furnace, the extreme values can react to local areas without the temperature or the humidity being too high or too low, and other furnace positions and related attributes are the same, so that a foundation is provided for accurate processing control tamping.
S200: acquiring processing expected information of the hazardous waste in a processing stage, and acquiring a hazardous waste characteristic analysis result according to the hazardous waste processing characteristic information and the processing expected information; the hazardous waste characteristic analysis results include: a first deviation value and a first deviation rate between the hazardous waste treatment characteristic information and the treatment desired information;
specifically, the treatment expected information of the hazardous waste is a process parameter set according to the initial state of the hazardous waste vitrification, such as the weight, volume, temperature, type and the like of the hazardous waste to be treated, the process parameter values are input according to different related attributes of the hazardous waste in the process implementation process, the process parameter values are ideal states of the hazardous waste treatment, and the treatment expected information of the hazardous waste is called treatment expected information of the hazardous waste, namely, the treatment expected information of vitrification treatment is set according to the specific state before the hazardous waste vitrification.
Further, the whole process of the solid incineration treatment ash vitrification rotary melting is divided into a plurality of treatment steps, wherein the treatment steps comprise: pretreatment, incineration treatment, waste heat utilization, ash treatment and flue gas purification, and the result of the previous treatment process directly influences the subsequent treatment, so that the treatment expected information of the hazardous waste has extremely high dependence on the information acquisition of the initial hazardous waste, and the calculation amount of the subsequent correction work can be reduced by the accurate detection which is improved as much as possible. The accuracy of the initial state information is improved, a data processor can be arranged at the acquisition end, the data processor can simply process a plurality of acquired data, for example, an average value is obtained from a plurality of humidity parameters at different positions, and the average value is output to obtain more accurate humidity parameter information.
S300: inputting the first deviation value and the first deviation rate into an adaptive adjustment module, and obtaining correction adjustment data;
s400: and carrying out real-time adjustment on the deviation of the hazardous waste incineration process data according to the correction and adjustment data.
Specifically, the self-adaptive adjustment module is a control adjustment system which is nonlinear in processing and capable of eliminating deviation, and the system can be applied to a PID control system, so that the advantages of high fuzzy control precision and strong robustness can be brought into play, and the system has the advantages of convenience in design and simplicity in algorithm structure.
Furthermore, the correction adjustment data are in communication interaction with the process control terminal, the control terminal correspondingly adjusts the incineration process parameters through the correction adjustment data, adjustment and real-time detection are performed simultaneously, adjustment deviation is performed through the self-adaptive adjustment module again, new correction adjustment data are further obtained, the correction adjustment data feed back and correct the data deviation again, and the ash vitrification degree is improved through repeated correction in the incineration process, so that secondary pollution is reduced.
Further, as illustrated in fig. 2, the method includes: setting a first measuring point, a second measuring point, a third measuring point and a fourth measuring point; the first measuring point, the second measuring point, the third measuring point and the fourth measuring point are sequentially distributed on the feed inlet, the incinerator, the quenching tower and the exhaust flue, and dynamic parameters are correspondingly acquired through the measuring points respectively; and obtaining the hazardous waste treatment characteristic information through dynamic parameters.
Specifically, the first measuring point, the second measuring point, the third measuring point and the fourth measuring point are used for calibrating the position of the corresponding process equipment, and are not limited to a certain point, wherein the first measuring point is taken as an example for calibrating the equipment at the feeding port, the number of the testing points at the feeding port can be multiple, the critical wastes in the pretreatment stage can be respectively subjected to data acquisition, wherein the critical data such as real-time temperature, humidity and the like can be included, the real-time detection of the dynamic property is the timing detection, the historical data is reserved, the historical data and the last data form a data matrix, the data matrix can have two modes according to the setting, and one of the two modes can directly output the last acquisition value; secondly, a weight calculation formula can be designed through historical data, the weight is calculated by the update sequence of the acquisition time and is reduced in sequence, the historical data participating in calculating the weight can be set for at least 2 times, gradual correction parameters are formed, and the problem that the deviation of subsequent processing information is overlarge due to overlarge gap between the latest data and the historical data is avoided.
Further, the method comprises the steps of: and obtaining a thickness analysis result, a density analysis result and a fermentation analysis result of the hazardous waste through the first measuring point.
Specifically, the pretreatment stage mainly comprises the steps of crushing, squeezing, fermenting and the like of the solid waste, so that the garbage is conveniently subjected to the next incineration treatment. Because the types and the volumes of the solid hazardous wastes are different, the burnout degree in the incineration process is asynchronous, a certain degree of crushing is needed in the incineration pretreatment stage, then a compound is added to ferment the solid hazardous wastes, and the solid hazardous wastes are extruded into thick plates with consistent volumes, the pretreatment is the first stage of the incineration process, and the treatment result in the stage directly influences whether the garbage can be combusted sufficiently; the thickness analysis result obtains thickness parameter information of the dangerous waste thick plates, so that quality parameter detection is carried out on the dangerous waste extrusion process, and the purpose of the thick plates is to uniformly and fully heat the dangerous waste in the subsequent incineration process; the density analysis result obtains the initial state of the solid dangerous object to detect the crushing degree, and the density can be monitored by adopting a density detector or scanning an imaging image; the fermentation analysis result monitors the fermentation degree of the solid waste, and can be realized by adopting a concentration or humidity sensor and the like.
Further, a decrement ratio analysis result, a thermal ignition decrement analysis result, and an incineration efficiency analysis result are obtained through the second measurement point.
Specifically, the incineration stage is a key part of the whole process, and the main task is to fully burn the solid waste through measures such as air blowing, air inducing, oil injection and the like, and recycle steam through a waste heat boiler, including two sub-processes of waste incineration and steam recycling. The hazardous waste incineration is further divided into a combustion section and a ashes burning section, the main task of the incineration section is to utilize high temperature to dry, burn and gasify the garbage sent into a hearth, the generated combustible flue gas enters into a combustion chamber to carry out secondary combustion, the reduction ratio analysis result is defined as the mass of the combustible waste which is reduced after the incineration treatment to be the percentage of the total mass of the combustible substances in the added waste, and the formula is as follows:
wherein MRC is a decrement ratio,%; ma is the mass of incineration residue, kg; mb is the mass of the added waste, kg; mc is the mass of incombustible in the residue, kg;
the thermal ignition loss analysis result indicates that the mass of the incineration residue, which is reduced after 3 hours ignition at (600+/-25), accounts for the percentage of the mass of the original incineration residue, and the calculation method is as follows:
wherein QR is thermal ignition loss,%; mx is the mass of the incineration residue at room temperature, kg; myis the mass of the incineration residue cooled to room temperature after burning for 3 hours at the temperature of (600+/-25) DEG C, kg; the thermal loss index is a method for evaluating the incineration effect based on the amount of organic combustibles (i.e., unburned fixed carbon) in the incineration slag, and it means the reduction amount per unit mass of the incineration slag after the household garbage incineration slag is sufficiently oxidized under the conditions of high temperature and air excess. The larger the thermal ignition loss, the less complete the combustion reaction, and the poorer the incineration effect; conversely, the better the incineration effect.
The incineration efficiency analysis result monitoring method comprises the following steps:
in the formula, the Combustion Efficiency (CE) is used as an index for evaluating whether the requirements of expected treatment, namely CO and CO, can be met 2 The concentration values of carbon monoxide and carbon dioxide in the flue gas are respectively, and the gas detection can be specifically acquired through an oxygen sensor.
Further, the method comprises the steps of: and obtaining a waste heat analysis result, a slag analysis result and a fly ash analysis result through the third measuring point.
Specifically, the air needed by the incineration section is extracted from the upper part of the warehouse by a blower arranged below the fire grate, and is heated by the waste heat of the flue gas, part of the waste which is not fully combusted is sent to the ashes fire grate to be continuously incinerated, and the ashes are changed into ashes and then enter into an ash storage chamber. A large amount of combustible gas generated by the combustion process is burned vigorously in the second combustion chamber. The waste heat, slag and fly ash generated in the process are respectively further processed, the waste heat analysis result heats a heat collecting pipeline of the waste heat boiler by the released heat, the heat is converted into high-temperature steam, the energy conversion is realized, the process of resource recovery is completed, detection is carried out, and real-time information in the heat collecting process is collected; the molten slurry flows from the rotary melting furnace to a water seal slag dragging machine, and the high-temperature molten slurry is quenched by water to form granular glass bodies. Fly ash generated by solid waste incineration enters a rotary melting furnace from a special feed inlet through granulation, a medicament enters the rotary melting furnace from the special feed inlet, and a slag analysis result and a fly ash analysis result respectively monitor the processes.
Further, the method comprises the steps of: and obtaining a fire grate speed analysis result and an oxygen concentration analysis result through a fourth measuring point.
Specifically, whether the temperature of the incinerator hearth is stable or not is one of important standards for evaluating the control quality of a system, and the process requires that the temperature of the primary combustion chamber of the incinerator is stabilized at about 850 ℃ and the temperature of the secondary combustion chamber is stabilized at about 1100 ℃. The most critical factors affecting the furnace temperature are the difference of feeding amount, gasification air quantity and primary blast amount change for the first combustion chamber, wherein the feeding amount is determined by the fire grate speed and represents the quantity of fuel in the incinerator, the gasification air quantity affects the generation speed of combustible gas, and the primary blast provides sufficient oxygen for combustion. And the parameters for detecting the speed of the fire grate have a guiding effect on the control of the feeding amount.
Further, the method further comprises: judging whether the correction adjustment data is in a threshold interval or not, and if so, outputting data; and if the self-adaptive adjustment module is outside the threshold value interval, re-inputting the self-adaptive adjustment module.
Further, the operation of the adaptive adjustment module at least includes:
and rapidly eliminating errors when the deviation of the hazardous waste characteristic analysis result exceeds a set limit value, eliminating steady-state errors of average deviation of the hazardous waste characteristic analysis result, and predicting error trend changes of the hazardous waste characteristic analysis result.
Specifically, the adaptive adjustment module includes three correction methods, which are respectively implemented by different control units: the method and the device respectively realize the quick elimination of errors when the deviation is large, and realize the quick response of the system; eliminating steady-state errors of the system and improving the no-difference degree of the system through the action of average deviation; the system can be helped to realize advanced control by predicting the trend of error change, so that the system deviation is eliminated. In the actual control, two or three combinations can be selected for control, the self-adaptive adjustment module can adopt a PID controller to realize deviation correction, wherein the threshold value is set to be an acceptable deviation value for dangerous waste treatment under an ideal state, and the self-adaptive adjustment module is used for correcting the deviation of technological parameters compared with expected values so as to comprehensively control the whole process of vitrification, revolution and fusion of ash residues for solid waste treatment, thereby further reducing secondary pollution.
Embodiment two:
based on the same inventive concept as the on-line ash vitrification rotary melting method for solid waste incineration treatment in the foregoing embodiments, the present application also provides an on-line ash vitrification rotary melting system for solid waste incineration treatment, as shown in fig. 3 and 4, the system comprising:
a first acquisition unit 10 for detecting a treatment state of hazardous waste and acquiring hazardous waste treatment characteristic information;
a second acquisition unit 20 for acquiring processing expected information of the hazardous waste in a processing stage, and acquiring a hazardous waste characteristic analysis result according to the hazardous waste processing characteristic information and the processing expected information;
the first processing unit 30 is configured to input the first deviation value and the first deviation rate into the adaptive adjustment module, and obtain correction adjustment data.
Further, the first processing unit 30 includes:
a first deviation correcting unit 31 for rapidly eliminating errors when the deviation of the hazardous waste characteristic analysis result exceeds a set limit value;
a second deviation correcting unit 32 for eliminating steady-state errors of average deviation of the hazardous waste characteristic analysis results;
and a third deviation rectifying unit 33, for predicting the error trend change of the dangerous waste characteristic analysis result.
In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, produces a flow or function in accordance with embodiments of the present application, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable system. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another, for example, by wired (e.g., coaxial cable, optical fiber, digital Subscriber Line (DSL)), or wireless (e.g., infrared, wireless, microwave, etc.). The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device including one or more servers, data centers, etc. that can be integrated with the available medium. The usable medium may be a magnetic medium (e.g., a floppy Disk, a hard Disk, a magnetic tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a Solid State Disk (SSD)), or the like.
The various illustrative logical blocks and circuits described in connection with the embodiments of the present application may be implemented or performed with a general purpose processor, a digital signal processor, an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic system, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general purpose processor may be a microprocessor, but in the alternative, the general purpose processor may be any conventional processor, controller, microcontroller, or state machine. A processor may also be implemented as a combination of computing systems, e.g., a digital signal processor and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a digital signal processor core, or any other similar configuration.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software unit executed by a processor, or in a combination of the two. The software elements may be stored in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. In an example, a storage medium may be coupled to the processor such that the processor can read information from, and write information to, the storage medium. In the alternative, the storage medium may be integral to the processor. The processor and the storage medium may reside in an ASIC, which may reside in a terminal. In the alternative, the processor and the storage medium may reside in different components in a terminal. These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
Although the application has been described in connection with specific features and embodiments thereof, it will be apparent that various modifications and combinations can be made without departing from the spirit and scope of the application. Accordingly, the specification and figures are merely exemplary illustrations of the present application as defined in the appended claims and are considered to cover any and all modifications, variations, combinations, or equivalents that fall within the scope of the application. It will be apparent to those skilled in the art that various modifications and variations can be made to the present application without departing from the scope of the application. Thus, the present application is intended to include such modifications and alterations insofar as they come within the scope of the application or the equivalents thereof.
Claims (7)
1. An on-line ash vitrification rotary melting method for solid waste incineration treatment, which is characterized by comprising the following steps:
s100: detecting the treatment state of the hazardous waste and obtaining the treatment characteristic information of the hazardous waste;
s200: acquiring processing expected information of the hazardous waste in a processing stage, and acquiring a hazardous waste characteristic analysis result according to the hazardous waste processing characteristic information and the processing expected information; the hazardous waste characteristic analysis result comprises: a first deviation value and a first deviation rate between the hazardous waste treatment characteristic information and the treatment desired information;
s300: inputting the first deviation value and the first deviation rate into an adaptive adjustment module, and obtaining correction adjustment data;
s400: real-time adjustment is carried out on the deviation of the hazardous waste incineration process data according to the correction and adjustment data;
the method further comprises the steps of: setting a first measuring point, a second measuring point, a third measuring point and a fourth measuring point; the first measuring point, the second measuring point, the third measuring point and the fourth measuring point are sequentially distributed on the feed inlet, the incinerator, the quenching tower and the exhaust flue, and dynamic parameters are correspondingly acquired through the measuring points respectively; acquiring the hazardous waste treatment characteristic information through the dynamic parameters;
the real-time detection of the dynamic performance is timing detection, historical data is reserved, the historical data and the last data form a data matrix, and the data matrix adopts the following modes according to the setting: the weight calculation formula is designed through historical data, the weight is calculated according to the update sequence of the acquisition time, and the historical data participating in the weight calculation is set for at least 2 times;
the method further comprises the steps of: judging whether the correction adjustment data is in a threshold interval or not, and if so, outputting data; if the self-adaptive adjustment module is out of the threshold value interval, re-inputting the self-adaptive adjustment module;
the work of the adaptive adjustment module at least comprises:
and rapidly eliminating errors when the deviation of the dangerous waste characteristic analysis result exceeds a set limit value, eliminating steady-state errors of average deviation of the dangerous waste characteristic analysis result, predicting error trend change of the dangerous waste characteristic analysis result, and controlling by selecting two or three combinations.
2. The on-line ash vitrification rotary fusion method for solid waste incineration treatment according to claim 1, characterized in that the method comprises: and obtaining a decrement ratio analysis result, a thermal ignition decrement analysis result and an incineration efficiency analysis result through the second measuring point.
3. The on-line ash vitrification rotary fusion method for solid waste incineration treatment according to claim 2, wherein the decrement ratio analysis result is obtained by adopting the following formula:
wherein MRC is the reduction ratio, ma is the mass of incineration residues, mb is the mass of added waste, and mc is the mass of incombustible in the residues.
4. The on-line ash vitrification rotary fusion method for solid waste incineration treatment according to claim 2, wherein the thermal loss analysis result is obtained by adopting the following formula:
wherein QR is the thermal ignition quantity, mx is the mass of the incineration residue at room temperature, and my is the mass of the incineration residue after ignition and cooling to room temperature.
5. The on-line ash vitrification rotary fusion method for solid waste incineration treatment according to claim 2, wherein the incineration efficiency analysis result is obtained by adopting the following formula:
wherein CE is incineration efficiency, CO and CO 2 The concentration values of the gases in the flue gas respectively.
6. An on-line ash vitrification rotary melting system for solid waste incineration disposal, characterized in that the on-line ash vitrification rotary melting method for solid waste incineration disposal according to claim 1 is adopted, the system comprises:
the first acquisition unit is used for detecting the treatment state of the hazardous waste and acquiring the treatment characteristic information of the hazardous waste;
the second acquisition unit is used for acquiring processing expected information of the hazardous waste in a processing stage and acquiring a hazardous waste characteristic analysis result according to the hazardous waste processing characteristic information and the processing expected information;
the first processing unit is used for inputting the first deviation value and the first deviation rate into the adaptive adjustment module and obtaining correction adjustment data.
7. The on-line ash vitrification rotary fusion system for solid waste incineration disposal according to claim 6, wherein the first disposal unit comprises:
the first deviation correcting unit is used for rapidly eliminating errors when the deviation of the dangerous waste characteristic analysis result exceeds a set limit value;
the second deviation rectifying unit is used for eliminating steady-state errors of average deviation of the dangerous waste characteristic analysis results;
and the third deviation rectifying unit predicts the error trend change of the hazardous waste characteristic analysis result.
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