CN111895388A - Method for measuring carbon content of pulverized coal by using electrostatic and capacitive superposition induction of W-flame boiler - Google Patents

Method for measuring carbon content of pulverized coal by using electrostatic and capacitive superposition induction of W-flame boiler Download PDF

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Publication number
CN111895388A
CN111895388A CN202010648289.3A CN202010648289A CN111895388A CN 111895388 A CN111895388 A CN 111895388A CN 202010648289 A CN202010648289 A CN 202010648289A CN 111895388 A CN111895388 A CN 111895388A
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carbon content
pulverized coal
coal
capacitance
measuring
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葛岚
葛斌峰
张祥翼
马群
单桢仁
胡腾
程思明
邓传记
陈浩
章斌
白鸥
马林
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Guizhou Jinyuan Chayuan Power Generation Co ltd
Jiangsu Bosen Energy Technology Co ltd
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Guizhou Jinyuan Chayuan Power Generation Co ltd
Jiangsu Bosen Energy Technology Co ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C5/00—Disposition of burners with respect to the combustion chamber or to one another; Mounting of burners in combustion apparatus
    • F23C5/08—Disposition of burners
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C2700/00—Special arrangements for combustion apparatus using fluent fuel
    • F23C2700/06—Combustion apparatus using pulverized fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2223/00—Signal processing; Details thereof
    • F23N2223/40—Simulation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery

Abstract

The invention discloses a method for measuring the carbon content of pulverized coal by superposition induction of electrostatic charge capacitors of a W flame boiler, which comprises the steps of firstly measuring the charged pulverized coal flow in a primary air-pulverized coal pipe by using an electrostatic and capacitor composite sensor to obtain the charge state of pulverized coal particles; then, the charge state of the pulverized coal particles is processed and converted, and the processed state is input into a computer to be processed, so that an associated coordinate system with the static electricity and the electric capacity as horizontal coordinates and the carbon content of the pulverized coal as vertical coordinates is obtained and stored in the computer; and finally, establishing a coal powder carbon content model in the boiler according to the coal powder carbon content in the coordinate system, the corresponding static electricity and the capacitance and combining basic parameters, and performing simulation and prediction by using the coal powder carbon content model in the boiler, so that the coal type of the coal entering the boiler for combustion can be well predicted, and the economy and the safety of the boiler combustion are improved.

Description

Method for measuring carbon content of pulverized coal by using electrostatic and capacitive superposition induction of W-flame boiler
Technical Field
The invention relates to the technical field of boiler combustion, in particular to a method for measuring the carbon content of pulverized coal by superposition of electrostatic and capacitance of a W flame boiler.
Background
The W-type flame combustion technology is one of the most widely applied low-volatile coal combustion technologies in China. The combustion chamber of the W-shaped flame boiler consists of an arch combustion chamber of a lower hearth and a burnout chamber of an upper hearth, so that the influence of the load change of the boiler on the combustion is small. The pulverized coal airflow and the secondary air are sprayed downwards from the vault, are converged with the grading air in the lower hearth, turn downwards and rise from the center of the hearth to form W-shaped flame. The W flame boiler has the disadvantages of unstable coal source, coal quality reduction, frequent coal type change, serious influence on the economy and safety of boiler operation, and less related research on-line measurement of the carbon content of the coal powder entering the boiler at home and abroad. The method is characterized in that the carbon content of the coal powder entering the furnace is measured on line by the French microwave method technology, the principle is that the carbon content of the coal powder is calculated through the microwave attenuation and the phase shift change degree, but the measured value is greatly influenced by moisture; the existing advanced technology of detecting coal quality on line based on neutron activation analysis technology in China detects coal quality components based on a reaction mechanism of neutrons and atomic nuclei, but the equipment is expensive, has radioactivity, detects data of a coal feeder belt in front of a coal bunker, is not directly fed into a furnace, has time lag, causes unstable coal sources of power station boiler combustion, often has larger deviation with designed coal types, causes insufficient boiler output, reduces combustion efficiency, cokes and other problems, and influences the combustion economy and safety of the boiler.
Disclosure of Invention
The invention aims to provide a method for measuring the carbon content of pulverized coal by superposition of electrostatic and capacitance of a W-flame boiler, which can better predict the coal type entering the boiler for combustion and improve the economy and safety of boiler combustion.
In order to achieve the purpose, the invention provides a method for measuring the carbon content of pulverized coal by superposition of electrostatic and capacitance of a W flame boiler, which comprises the following steps:
measuring the charged coal powder flow by using a static and capacitance composite sensor to obtain the charge state of the coal powder particles;
processing and converting the charge state of the coal dust particles to obtain the carbon content of the coal dust;
and establishing a coal dust carbon content model of the charged coal dust according to the coal dust carbon content and the obtained basic parameters, and performing simulation and prediction.
Wherein the method further comprises:
the primary air heated by the air preheater is used for driving pulverized coal in the coal mill to move in the primary air-pulverized coal pipe, so that the pulverized coal generates charge transfer, and an electrified pulverized coal flow is obtained.
The method for measuring the charged pulverized coal flow by using the electrostatic and capacitive composite sensor to obtain the charge state of the pulverized coal particles comprises the following steps:
the method comprises the steps of measuring the capacitance of the charged pulverized coal flow by using two capacitance principle measuring modules which are symmetrically distributed on the inner wall of a primary air-pulverized coal pipe, and measuring the static quantity of the charged pulverized coal flow by using a static principle measuring module which is arranged between the two capacitance principle measuring modules.
Wherein, the charge state of the coal dust particles is processed and converted to obtain the carbon content of the coal dust, and the method comprises the following steps:
and converting and amplifying the capacitance and the static quantity by a signal processing circuit, and inputting the converted and amplified capacitance and static quantity into a computer for processing to obtain an inverse expression of the static quantity, the capacitance and the carbon content of the pulverized coal.
Wherein, handle and change the coal dust granule state of charge, obtain the coal dust carbon content, still include:
and according to the inverse ratio expression, taking the static electricity quantity and the capacitance as abscissa and the carbon content of the pulverized coal as ordinate, and storing the related coordinate system in the computer.
According to the coal dust carbon content and the obtained basic parameters, a coal dust carbon content model entering the furnace is established, and simulation and prediction are carried out, wherein the method comprises the following steps:
and establishing a coal dust carbon content model entering the furnace according to the coal dust carbon content, the corresponding static electricity and the electric capacity in the coordinate system and by combining the particle fineness, the coal dust speed, the primary air-powder pipe concentration and the coal dust particle motion kinetic energy.
Wherein, according to the coal dust carbon content and the basic parameter obtained, establish the coal dust carbon content model of entering the stove, and carry on the emulation and predict, still include:
and dividing the acquired multiple groups of data into simulation data and prediction data, and respectively inputting the simulation data and the prediction data into the furnace coal powder carbon content model for simulation and prediction.
The invention relates to a method for measuring the carbon content of pulverized coal by superposition induction of electrostatic charge capacitors of a W flame boiler, which comprises the steps of firstly measuring the charged pulverized coal flow in a primary air powder pipe of the W flame boiler by using an electrostatic and capacitance composite sensor to obtain the charge state of pulverized coal particles; then, the charge state of the pulverized coal particles is processed and converted, and the processed state is input into a computer to be processed, so that an associated coordinate system with the static electricity and the electric capacity as horizontal coordinates and the carbon content of the pulverized coal as vertical coordinates is obtained and stored in the computer; and finally, establishing a coal powder carbon content model in the boiler according to the coal powder carbon content in the coordinate system, the corresponding static electricity and the capacitance and combining basic parameters, and performing simulation and prediction by using the coal powder carbon content model in the boiler, so that the coal type of the coal entering the boiler for combustion can be well predicted, and the economy and the safety of the boiler combustion are improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic step diagram of a method for measuring carbon content in pulverized coal by superposition of electrostatic and capacitance in a W-flame boiler according to the present invention.
FIG. 2 is a diagram of a sensor for measuring the carbon content of pulverized coal in a W-flame boiler according to the present invention.
FIG. 3 is a diagram of an associated coordinate system provided by the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
Referring to fig. 1, the present invention provides a method for measuring carbon content in pulverized coal by superposition of electrostatic and capacitive sensing in a W-flame boiler, comprising:
s101, measuring the charged coal powder flow by using a static and capacitance composite sensor to obtain the charge state of the coal powder particles.
Specifically, the pulverized coal flow in the primary air pipe of the W flame boiler belongs to gas-solid two-phase flow, the primary air heated by the air preheater is used for driving the pulverized coal in the coal mill to move in the primary air pipe of the W flame boiler, and when pulverized coal particles are ground and conveyed by air force, the pulverized coal particles, the particles and the pipe wall collide, rub and separate with each other, so that the pulverized coal generates charge transfer, and the pulverized coal particles are charged with quantitative static charges to obtain charged pulverized coal flow. At the moment, under the condition of no external intervention, the charged particle flow can stably reflect the characteristics of the two-phase flow, and under the action of the electrostatic and capacitive composite sensor, the charge state of the pulverized coal particles comprises information such as carbon content and concentration of the pulverized coal. The static and capacitance composite sensor comprises two capacitance principle measuring modules and one static principle measuring module, such as a W flame boiler pulverized coal carbon content measuring sensor diagram provided in figure 2. The method specifically comprises the steps of measuring the capacitance of the charged pulverized coal flow by using two capacitance principle measuring modules which are symmetrically distributed on the inner wall of the primary air pulverized coal pipe, measuring the static electricity of the charged pulverized coal flow by using a static electricity principle measuring module which is arranged between the two capacitance principle measuring modules, and monitoring the characteristics of the charged pulverized coal flow, namely monitoring the characteristics of pulverized coal in the primary air pulverized coal pipe, so that necessary operation parameters are provided for optimized combustion of a boiler.
S102, processing and converting the charge state of the coal dust particles to obtain the carbon content of the coal dust.
Specifically, the pulverized coal particles are charged with a certain amount of static charges in the grinding and conveying processes, and the charged pulverized coal particles contain the carbon content information of the pulverized coal; an electrostatic field and a capacitive field are formed in the sensor of a particular shape. In a certain situation of coal powder concentration, temperature and the like, the capacitance and the static electricity are converted and amplified by a signal processing circuit and then input into a computer for processing to obtain an inverse ratio expression of the static electricity and the capacitance to the carbon content of the coal powder:
(Q+F)∝K/Car
in a situation of constant coal powder concentration, temperature, etc., there is a certain relationship between the magnitude of the electrostatic and capacitive fields formed by the charged coal powder particles and their relative dielectric constants, that is, they decrease with the increase of the relative dielectric constant: the dielectric constant and the carbon content are related, i.e. the dielectric constant increases with the carbon content.
(Q+F)∝K1/
∝K2×Car
Car＝f(Q,C,x1,x2,x3...xn)
Wherein Q is electrostatic quantity of the pulverized coal particles, F is capacitance, relative dielectric constant of the pulverized coal particles, and CarIs the carbon content, x, of the coal dust particles1,x2,x3...xnParameters that affect the measurement of the carbon content of the coal fines.
According to the inverse proportion expression, the static electricity quantity and the capacitance are used as abscissa, the carbon content of the pulverized coal is used as ordinate, and the correlation coordinate system is stored in the computer, as shown in fig. 3, when the concentration of the pulverized coal, the temperature of the pulverized coal and the like are approximately unchanged, the electric field signal measured by the sensor presents an obvious change trend along with different types of coal entering the boiler. The two have approximately linear inverse proportion change trend, namely the electric field signal size is reduced along with the increase of the carbon content of the coal powder entering the furnace. The coal powder concentration and the coal powder temperature in the related coordinate system are unchanged, only the type of coal entering the boiler is changed, the corresponding type of coal entering the boiler can be predicted according to the carbon content, and the combustion safety and the combustion economy of the boiler are improved.
S103, establishing a coal dust carbon content model according to the coal dust carbon content and the obtained basic parameters, and performing simulation and prediction.
Specifically, a fired coal powder carbon content model is established according to the coal powder carbon content, the corresponding static electricity and the electric capacity in the coordinate system and by combining the particle fineness, the coal powder speed, the primary air powder pipe concentration of the W flame boiler and the kinetic energy of coal powder particle motion:
Figure BDA0002573942600000051
wherein, CarIs carbon content, Q is electrostatic quantity, F is capacitance, R90The coal powder particle fineness is shown, C is the concentration of the air-powder pipeline, V is the coal powder speed, K is a calibration constant, and Mp is the kinetic energy of coal powder particle motion.
The kinetic energy equation of the motion of the pulverized coal particles is as follows:
Figure BDA0002573942600000052
where m is the mass of the particles, p is the velocity component of the particles in a certain direction, CDIs the drag coefficient, ρ is the density of the coal powder density, A is the particle surface area, uig、uipThe average speed of two-phase flow and the pulse speed of coal powder in a certain direction are respectively, and g is the momentum equation of the gravity acceleration (vertical direction) along the particle instant.
For data-driven modeling, data partitioning has a large impact on the generalization performance of the model. Therefore, the method has an important function of fully utilizing the existing data to establish the chess type reflecting the real object. Dividing the obtained multiple groups of data into simulation data and prediction data, and respectively inputting the coal powder carbon content model into the furnace for simulation and prediction, for example, 340 groups of data are collected in a W flame boiler of a Yuan tea garden power plant for simulation, meanwhile, data division is carried out based on load working conditions, namely samples are classified according to the load size in a proper proportion, finally, various simulation samples are integrated together to be used as simulation samples, and various test samples are integrated together to be used as test samples. Through the allocation, 280 groups of data in the final 340 groups were simulated, and the remaining 60 groups were used to test the established model.
A function feedback forwardnet in MATALAB2011b is adopted to construct a mathematical model of the carbon content of the coal powder fed into the furnace. The method is characterized in that a trainlm simulation algorithm is adopted, the maximum simulation frequency, namely net, TrainParam, epochs is 1000, the simulation precision net, TrainParan, goal is 0.0001, the performance function net, PerformFcn is mse, the initialization function is init, the rate net, trainParam, lr is 0.04, and therefore the smaller rate of 0.04 is selected.
The data under different experimental conditions are divided into simulation samples and prediction samples, and simulation and prediction are performed respectively, so that a coal powder carbon content model with a good prediction effect is obtained. The graph shows that the predicted value obtained after simulation of the prediction sample is well matched with the experimental value, which shows that the network model obtained through simulation of the simulation sample has a good prediction effect, the absolute error of the simulation sample is basically within 0.6%, the maximum absolute error is about 0.6%, the absolute error of the prediction sample is basically within 0.8%, the maximum absolute error is about 0.8%, the absolute error values of the prediction sample and the simulation sample are both small and within the allowable error range, and the model simulation effect and the prediction effect are good.
According to the experiment and simulation, the carbon content of the coal dust entering the W-flame boiler can be well predicted by the prediction model. Therefore, the electrostatic induction is utilized to measure the charge quantity of the pulverized coal particles, the relation between the electrostatic signal and the carbon content of the pulverized coal particles is researched according to the information that the charged pulverized coal particles contain the carbon content of the particles, and finally modeling simulation analysis is carried out, so that the coal types entering the boiler for combustion can be well predicted, and the economical efficiency and the safety of the boiler for combustion are improved.
The invention relates to a method for measuring the carbon content of pulverized coal by superposition induction of electrostatic charge capacitors of a W flame boiler, which comprises the steps of firstly measuring the charged pulverized coal flow in a primary air powder pipe of the W flame boiler by using an electrostatic and capacitance composite sensor to obtain the charge state of pulverized coal particles; then, the charge state of the pulverized coal particles is processed and converted, and the processed state is input into a computer to be processed, so that an associated coordinate system with the static electricity and the electric capacity as horizontal coordinates and the carbon content of the pulverized coal as vertical coordinates is obtained and stored in the computer; and finally, establishing a coal powder carbon content model in the boiler according to the coal powder carbon content in the coordinate system, the corresponding static electricity and the capacitance and combining basic parameters, and performing simulation and prediction by using the coal powder carbon content model in the boiler, so that the coal type of the coal entering the boiler for combustion can be well predicted, and the economy and the safety of the boiler combustion are improved.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (7)

1. A method for measuring the carbon content of pulverized coal by superposition of electrostatic and capacitance of a W-flame boiler is characterized by comprising the following steps:
measuring the charged coal powder flow by using a static and capacitance composite sensor to obtain the charge state of the coal powder particles;
processing and converting the charge state of the coal dust particles to obtain the carbon content of the coal dust;
and establishing a coal dust carbon content model of the charged coal dust according to the coal dust carbon content and the obtained basic parameters, and performing simulation and prediction.
2. The method for measuring the carbon content of the pulverized coal based on the superposition of the electrostatic capacitance and the capacitance of the W-flame boiler according to claim 1, further comprising the following steps:
the primary air heated by the air preheater is used for driving pulverized coal in the coal mill to move in the primary air-pulverized coal pipe, so that the pulverized coal generates charge transfer, and an electrified pulverized coal flow is obtained.
3. The method for measuring the carbon content of the pulverized coal through the superposition of the static electricity and the capacitance of the W-flame boiler according to claim 2, wherein the method for measuring the charged pulverized coal flow by using the static electricity and capacitance composite sensor to obtain the charge state of the pulverized coal particles comprises the following steps:
the method comprises the steps of measuring the capacitance of the charged pulverized coal flow by using two capacitance principle measuring modules which are symmetrically distributed on the inner wall of a primary air pulverized coal pipe of the W flame boiler, and measuring the static quantity of the charged pulverized coal flow by using a static principle measuring module which is arranged between the two capacitance principle measuring modules.
4. The method for measuring the carbon content of the pulverized coal by the superposition of the electrostatic capacitance and the induction of the W-flame boiler according to claim 3, wherein the step of processing and converting the charge state of the pulverized coal particles to obtain the carbon content of the pulverized coal comprises the following steps:
and converting and amplifying the capacitance and the static quantity by a signal processing circuit, and inputting the converted and amplified capacitance and static quantity into a computer for processing to obtain an inverse expression of the static quantity, the capacitance and the carbon content of the pulverized coal.
5. The method for measuring the carbon content in the pulverized coal by the superposition of the electrostatic capacitance and the induction of the W-flame boiler as claimed in claim 4, wherein the charge state of the pulverized coal particles is processed and converted to obtain the carbon content of the pulverized coal, and further comprising:
and according to the inverse ratio expression, taking the static electricity quantity and the capacitance as abscissa and the carbon content of the pulverized coal as ordinate, and storing the related coordinate system in the computer.
6. The method for measuring the carbon content of the pulverized coal by the superposition of the electrostatic capacitance and the induction of the W-flame boiler as claimed in claim 5, wherein the step of establishing a model of the carbon content of the pulverized coal as fired according to the carbon content of the pulverized coal and the obtained basic parameters, and performing simulation and prediction comprises the following steps:
and establishing a coal dust carbon content model entering the furnace according to the coal dust carbon content, the corresponding static electricity and the electric capacity in the coordinate system and by combining the particle fineness, the coal dust speed, the primary air-powder pipe concentration and the coal dust particle motion kinetic energy.
7. The method for measuring the carbon content of the pulverized coal by the superposition of the electrostatic capacitance and the induction of the W-flame boiler as claimed in claim 6, wherein a model of the carbon content of the pulverized coal as fired is established according to the carbon content of the pulverized coal and the obtained basic parameters, and the simulation and prediction are carried out, further comprising:
and dividing the acquired multiple groups of data into simulation data and prediction data, and respectively inputting the simulation data and the prediction data into the furnace coal powder carbon content model for simulation and prediction.
CN202010648289.3A 2020-07-07 2020-07-07 Method for measuring carbon content of pulverized coal by using electrostatic and capacitive superposition induction of W-flame boiler Pending CN111895388A (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB730786A (en) * 1950-11-20 1955-06-01 Koppers Gmbh Heinrich Method and apparatus for the production of heat and gases from pulverized bituminous fuels
CN101311629A (en) * 2007-05-25 2008-11-26 王泽章 On-line detection method for controlling station boiler combustion extinguishment
US20090257941A1 (en) * 2008-04-14 2009-10-15 Rudberg Donald A Coal/Coke/Heavy Residual Oil Boiler With Sulfur And Carbon Dioxide Capture And Recovery
CN106524137A (en) * 2016-10-26 2017-03-22 哈尔滨工业大学 Multi-injection staged W flame boiler using swirl pulverized coal burner
CN109270294A (en) * 2018-11-22 2019-01-25 北京华科佳仪科技有限公司 A kind of online detection of primary air system and measurement method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB730786A (en) * 1950-11-20 1955-06-01 Koppers Gmbh Heinrich Method and apparatus for the production of heat and gases from pulverized bituminous fuels
CN101311629A (en) * 2007-05-25 2008-11-26 王泽章 On-line detection method for controlling station boiler combustion extinguishment
US20090257941A1 (en) * 2008-04-14 2009-10-15 Rudberg Donald A Coal/Coke/Heavy Residual Oil Boiler With Sulfur And Carbon Dioxide Capture And Recovery
CN106524137A (en) * 2016-10-26 2017-03-22 哈尔滨工业大学 Multi-injection staged W flame boiler using swirl pulverized coal burner
CN109270294A (en) * 2018-11-22 2019-01-25 北京华科佳仪科技有限公司 A kind of online detection of primary air system and measurement method

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
张树勋主编: "《钢铁厂设计原理 上》", 31 October 1994, 冶金工业出版社 *
李雨成等: "《矿井粉尘防治理论及技术》", 28 February 2015 *
符慧林等: "《基于神经网络的电站锅炉入炉煤粉含碳量在线测量研究》", 《计算机测量与控制》 *
羊琛等: "《基于静电与电容集成传感器的密相气力输送煤粉流动参数在线测量研究》", 《化工自动化及仪表》 *

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Application publication date: 20201106