CN207891367U - A kind of blast furnace material distribution face three-dimensional information measuring device - Google Patents
A kind of blast furnace material distribution face three-dimensional information measuring device Download PDFInfo
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- CN207891367U CN207891367U CN201721816202.9U CN201721816202U CN207891367U CN 207891367 U CN207891367 U CN 207891367U CN 201721816202 U CN201721816202 U CN 201721816202U CN 207891367 U CN207891367 U CN 207891367U
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Abstract
The utility model discloses a kind of blast furnace material distribution face three-dimensional information measuring devices, it includes main body outer cover, main body outer cover includes the main casing of the antenna house and rear side of front side, installation guide rail mechanism and measuring mechanism inside main casing, the measuring mechanism is slided by guide rail mechanism, the measuring mechanism includes main body multichannel antenna, servo mechanism, power supply and control module unit, and the servo mechanism drives multichannel antenna and the movement of control module unit.It drives antenna to carry out two-dimensional scan to bed surface by servo-drive system, that is, utilizes multiple discrete measurement points " being covered with " entire bed surface, to form two-dimensional signal, belong to direct measurement, reflection charge level situation is accurately and timely.Detection Techniques mature and reliable, easy Project Realization.Using continuous wave system, equipment cost is reduced, different size blast furnaces are adapted to；Using combined antenna framework, certainly solves wave cover and hair receives isolation problem；Using self-adaptive processing algorithm, inhibit the interference of blast furnace internal protecting wall clutter and multipath to detection.
Description
Technical field
The utility model is related to a kind of blast furnace material distribution face three-dimensional information measuring devices.
Background technology
Thermoelectricity/blast furnace used in metallurgy belongs to greatly circulating fluidized bed boiler, is a kind of efficient, low stain power economized boiler,
Have in improve environment, make full use of energy resources, reduce project cost, promote Sustainable Development of Power Industry etc. important
Meaning.On the other hand, energy-saving to have a high potential, passing through scientific analysis influences the main of CFB Boiler Efficiency
Factor is constantly explored in actual moving process, to seek the optimum operating mode of boiler, to improve the whole fortune of unit
Line efficiency improves the economical, societal benefits of enterprise while reaching energy-saving consumption-reducing purpose.
Coal is as a kind of fuel, and by combustible basis, (such as main component is that the producing high-moleculars such as C, H, O, N and S close
Object) and inertia base (including several mineral materials and ash content) composition, and can be according to Mendeleev's empirical formula：Calculate the heat (unit thousand that per kilogram comburant can be sent out
It is burnt), such as the energy reduced value of standard coal is about 29308kJ/kg.
But these energy can not be converted to the output of hot spot stove, the reason is that there are heat balance principles in blast furnace, generally
Heat balance is formed as unit of 1kg solid fuels to express：Qr=Q1+Q2+Q3+Q4+Q5+Q6, wherein QrFor per kilogram fuel tape
Enter the heat of blast furnace, Q1Heat, Q are efficiently used for blast furnace2~Q6Respectively heat loss due to exhaust gas, gas incomplete combustion heat loss,
Heat loss of imperfect solid combustion, blast furnace radiation loss and heat loss due to sensible heat in slag.It is appreciated that if reducing Q2~Q6's
Heat (thermal energy) utilization rate of numerical value, blast furnace can improve, and achieve the effect that energy-saving and emission-reduction.
Influence Q2~Q6, including coal property, combustion system, furnace structure, operating condition, warm layer control many because being known as
System and air coefficient etc., wherein latter three are Process Character controllable parameter.In certain combustion apparatus, efficient burning should have height
Warm condition, necessary air and air and fuel it is good mix, the supply of fuel and the discharge of lime-ash and flue gas.
The blast furnace of fluidized bed type is mainly to solve the problems, such as to exist by controlling the operating parameter of blast furnace, such as be not achieved
Nominal output, steam parameter cannot be guaranteed, heating surface wear is serious, booster, overtemperature cause deformation, slagging, bed overtemperature, water cooling
Wall serious wear, coal consumption value/pollutant emission value are more than design objective etc., under normal circumstances, are had for the real-time parameter of control
Circulation fluidized bed bed temperature, the control of charge level height, fluidizing velocity, Thermal load of cross-section and circulating ratio etc..
The selected of circulation fluidized bed bed temperature should be according to the stability of burning, the safety of operation and economy and environmental protection etc.
The requirement of aspect carries out comprehensive determination.In view of burning and desulfurization etc., according to the difference of coal, bed temperature is generally taken as 800-900
℃。
In circulating bed boiler, operating personnel carry out fluidized-bed layer often through control operation air quantity, control bed temperature, prevent out
Existing bulky grain is sunk to the bottom, and bed material layering is serious, bed partly or wholly overtemperature slagging phenomenon, with the increase in furnace height face, wind
Amount reduces, and the Serpentine Gallery Pavilion granule density above fluid bed bed surface continuously decreases, and size tapers into.
In the circulating fluidized bed boiler operational process of middle cryogenic separation, it can also be controlled with the method for changing returning charge amount
Bed temperature, bed temperature can increase returning charge amount to maintain bed temperature constant when increasing, and vice versa.
Under normal circumstances, bed temperature is monitored by being arranged in the thermocouple of emulsion zone and burner hearth everywhere, but reliable
Property is relatively low, and measurement accuracy is poor, and the control effect of realization is not easy to assess.
It maintains metastable bed height particularly significant, fluidized state can be made to deteriorate when cannot highly stablize, slag is heavy
Product will form cryosphere in emulsion zone bottom quickly, reduce the high efficiency of furnace.Typically using circulation fluidized bed somewhere as pressure control point,
And pressure herein is monitored, and combine and survey emulsion zone each point temperature, the control of bed surface height is realized by slagging.Pressure controls
The selection of point, pressure measurement mode can all have an impact the measurement of height, more problems in actual application.
Fluidizing velocity is the key property parameter of circulating bed boiler.The abrasion brought in view of heightization flow velocity and energy consumption etc. are asked
Topic, speed general control is in 5-5.5m/s or so at present.The heat that Thermal load of cross-section, that is, unit furnace cross-sectional area can be generated,
After boiler and fuel quantity determine, both Thermal load of cross-section and fluidizing velocity are equal.
If on the basis of stove is low, the granule density with high degree of fluidization layer is answered roughly the same, just can ensure that Thermal load of cross-section
It is balanced with fluidizing velocity, reach highest efficiency of combustion.
The height of circulating ratio and the burning of boiler, heat transfer, contamination control and Load Regulation etc. are closely related.Influence cycle
The main factor of multiplying power is fluidizing velocity and coal-fired input amount and its size distribution, further includes the separative efficiency etc. of separator,
The above two can when blast furnace works real-time monitoring.The variation of circulating ratio can ensure that circulating bed boiler fits fuel
Ying Xing, while determining the concentration of solid particle in inner flue gas of the stove, and then the abrasion of heating surface is influenced, have an effect on the stream of burner hearth
Dynamic resistance.
By the analysis to above-mentioned important operating parameter, it can be found that being to be mutually related between these parameters.Work as fluidisation
When bed is in efficient operation state, high low under its layer temperature, bed surface is smooth, each bed section thermal force or fluidizing velocity
Equilibrium, circulating ratio are in higher level.
If be monitored to fluid bed bed surface flatness, in real time or quasi real time by the control of coal, air feed and deslagging,
Fluid bed running parameter is set to be in optimal, you can to effectively reduce coal consumption, reduce noxious gas emission.
The detection of fluidisation bed surface or charge level is used in metallurgy industry, just as a kind of important raising blast furnace
The method of operational efficiency is widelyd popularize.
From the angle of sensor, the monitoring to fluidizing bed surface may be implemented there are many method.
It is divided according to the way of contact, contact detection and contactless detection can be divided into.Contact has vertical line to stick together and machine
Tool is driven ruler etc., is chiefly used in old-fashioned blast furnace, is eliminated substantially.Contactless includes mainly following several：
It is divided according to measurement method, direct method can be divided into and measured and indirect method measurement.Direct method is straight using sensor
It connects and measures distance, form bed surface information after coordinate transform, including vertical line sticks together, machine driving detects ruler, laser measurement and microwave
Detection；Indirect method is to carry out inverting bed surface information by collateral information, such as temperature, is directed to the selection and inverting of collateral information
The factors such as algorithm, including infrared imaging and temperature measure.The bed surface information that direct method obtains is more directly and accurate, is more
Selected by number detection scheme.
Such as the patent of invention that China Patent Publication No. is CN02121548.0《At a kind of plug-in kiln video camera and image
Reason method》In, the method for the miniature thermal camera mechanical scanning of moving component is could be used without to charge level every bit in stove
Temperature measures, and is turned according to the gray value of each point on the correlativity image between infrared luminous intensity and testee temperature
Temperature value is turned to, finally shows the temperature of charge level or the distribution situation of air-flow on a monitor in the form of certain.
In the patent of invention that China Patent Publication No. is CN1877249A《In-furnace information Laser Detecting Set and method》,
Using laser in blast furnace high travel fatigue, form laser pattern under high smoky environment, and this pattern is captured by video camera, be based on
In shaft furnace charging process and shape of charge level, stockline depth difference, laser pattern will present different or generate corresponding abnormal in stove
Become principle and obtains three kinds of information respectively.
In the patent of invention that China Patent Publication No. is CN102312031A《Bell-less blast furnace furnace roof material surface measurement device and
Method》In, using already present mechanical stock rod in blast furnace, in laser range finder installed above, gyroscope and wireless transmission dress
Set composition material surface measurement system.
In the patent of invention that China Patent Publication No. is CN101020933A《Charge surface shape in blast dynamic solid detecting system
Grade detection method》The middle method for reaching monitoring dynamic charge level using radar range finding principle bores six in blast furnace roof along involute
Sky, installs single-point radar respectively and its mating cooling device acquires charge level elevation information, then is transferred data to by bus system
Host computer carries out the data processings such as interpolation algorithm, finally by 3 Dimension Image Technique by the Real time dynamic display of charge level in computer
On.
Also there are other to high furnace burden face measurement in relation to the patent of invention studied, such as China Patent Publication No. is
The patent of invention of CN102382918A《A kind of system and method for on-line measurement blast furnace charge level》, China Patent Publication No. is
The patent of invention of CN102912054A《A kind of device of the blast furnace radar surveying charge level based on MIMO》It provides a kind of based on MIMO
Blast furnace radar surveying charge level device, utilize MIMO radar thinned array high-resolution characteristic and near field high-resolution imaging
Algorithm obtains the three-dimensional information of entire charge level in blast furnace, while greatly reducing the cost of automatically controlled scanning array imaging radar, leads to
The online dynamic monitoring capacity of three-dimensional charge level under wind resistance dirt high temperature resistance technology offer industry spot mal-condition is provided.
The detection method of present mainstream is contactless, is mainly had following several：
A) laser measurement：It is generally used for telemeasurement, cannot well adapt to blast furnace complex environment, poor reliability, if
It is standby expensive；
B) infrared imaging：(thermal current) is limited by optical principle, uses and is limited in blast furnace, and the algorithm of imaging
Complexity, real-time is poor, be used for controlling unit the case where it is less；
C) temperature measures：Generally directed to Small object, thermal capacity is small and temperature change rapidly detects object, for large-scale high
There are the blind zone problems at inspection center position for stove, and precision is poor；
D) microwave sounding：Due to the advantage of wave band, microwave band detects adaptable, relevant rudimentary technology maturation, reliably
Property it is high, overall target is optimal, has more been widely used and has been used in blast furnace operation.
China Patent Publication No. is the patent of invention of CN02121548.0《A kind of plug-in kiln video camera and image procossing
Method》, when charge-temperature is relatively low in State of Blast Furnace, the infrared light intensity distributed is very low, and thermal camera can not obtain
More clearly shape of charge level, therefore there is also significant limitations for its use.
China Patent Publication No. is the patent of invention of CN1877249A《In-furnace information Laser Detecting Set and method》, due to
Not by the direct data for measuring charge level information and obtaining, therefore handles the charge level error that data obtain and will increase, another
Shortcoming is to must have a large amount of data to obtain ideal information, since the condenser performance of laser is fine, is surveyed
It obtains pattern and just needs many laser equipments.
China Patent Publication No. is the patent of invention of CN102312031A《Bell-less blast furnace furnace roof material surface measurement device and side
Method》, there are the problem of be first its both sides blast furnace system be bell-less blast furnace, this has just put on prodigious before application
Limitation；Secondly, the laser range finder that similar patent CN200610089415.6 needs is more, of high cost；Finally, the number measured
According to the point on only charge level on a line, the laser range finder quantity number of installation is limited, this will lead to gathered data
Imperfection, to which charge level mass data is obtained by fitting, final shape of charge level may differ larger with true charge level.
China Patent Publication No. is the patent of invention of CN101020933A《Charge surface shape in blast dynamic solid detection system irrespective of size
Detection method》, equipment amount is more, larger to the transformation of blast furnace, is measured as fixed discrete point, and the graphics precision being fitted to is difficult
To ensure.
China Patent Publication No. is the patent of invention of CN102912054A《A kind of blast furnace radar surveying charge level based on MIMO
Device》, MIMO radars are relatively advanced, but also have more work to do from Project Realization, and costly, economical
Property has to be assessed.Device is in direct contact with blast furnace internal environment, and reliability needs to examine, maintainable not high.
The purpose of this patent is using the small technical solution of ripe, Project Realization difficulty, direct, survey accurately and timely
Charge level situation is measured, while considering economy, reliability and maintainability.
Invention content
In view of the above problems, the utility model provides a kind of blast furnace material distribution face three-dimensional information measuring device, purpose
It is directly to measure, reflects charge level situation accurately and timely, Detection Techniques mature and reliable, easy Project Realization.
To achieve the goals above, technical solution provided by the utility model is：A kind of blast furnace material distribution face three-dimensional information is surveyed
Device is measured, it includes main body outer cover, and main body outer cover includes the main casing of the antenna house and rear side of front side, and guide rail machine is installed inside main casing
Structure and measuring mechanism, the measuring mechanism are slided by guide rail mechanism,
The measuring mechanism includes main body multichannel antenna, servo mechanism, power supply and control module unit, and described watches
It takes mechanism and drives multichannel antenna and the movement of control module unit；
The measuring mechanism is equipped with cooling connecting piece with guide rail mechanism.
The multichannel antenna include a heavy caliber transmitting antenna and three small-bore reception antennas, described three
Small-bore reception antenna is in equilateral triangle, and heavy caliber transmitting antenna is at equilateral triangle center.
The control module unit includes RF receiving and transmission module and digital processing interface module.
It is to use microwave sounding mode, drives antenna to carry out two-dimensional scan to bed surface by servo-drive system, that is, utilizes multiple
Discrete measurement point " being covered with " entire bed surface belongs to direct measurement, reflection charge level situation is accurately and timely to form two-dimensional signal.
Detection Techniques mature and reliable, easy Project Realization.
Using continuous wave system, equipment cost is reduced, different size blast furnaces are adapted to；Using combined antenna framework, certainly demultiplex
Beam covers and hair receives isolation problem；Using self-adaptive processing algorithm, inhibit blast furnace internal protecting wall clutter and multipath to detection
Interference.
Description of the drawings
Fig. 1 is the outside drawing that the utility model embodiment provides；
Fig. 2 is the internal structure chart that the utility model embodiment provides.
Fig. 3 is Tthe utility model system operation principle block diagram.
Fig. 4 is multichannel antenna structure chart.
In figure：1 antenna house, 2 multichannel antennas, 3 servo-drive systems, 4 RF receiving and transmission modules, 5 the digital process interface modules, 6
Power supply, 7 cooling connecting pieces, 8 guide rail mechanisms composition.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
- 2 are please referred to Fig.1, is a kind of blast furnace material distribution face three-dimensional information measuring device that the utility model embodiment provides, it
Including main body outer cover, main body outer cover includes the main casing of the antenna house 1 and rear side of front side, and guide rail mechanism 8 is installed inside main casing and is surveyed
Measuring mechanism, the measuring mechanism are slided by guide rail mechanism,
The measuring mechanism includes main body multichannel antenna 2, servo mechanism 3, power supply and control module unit, described
Servo mechanism drives multichannel antenna and the movement of control module unit；Servo mechanism is made of control module and drive module, is made
With driven by Brush-Less DC motor drive antenna scanning, scanning patter be the spiral form of angle from large to small, responsive bandwidth 3M, always
Weight is less than 2.5kg.
The measuring mechanism is equipped with cooling connecting piece 7 with guide rail mechanism.
The multichannel antenna includes a heavy caliber transmitting antenna 21 and three small-bore reception antennas 22, described
Three small-bore reception antennas are in equilateral triangle, and heavy caliber transmitting antenna is at equilateral triangle center.
The control module unit includes RF receiving and transmission module 4 and digital processing interface module 5.
It is to use microwave sounding mode, drives antenna to carry out two-dimensional scan to bed surface by servo-drive system, that is, utilizes multiple
Discrete measurement point " being covered with " entire bed surface belongs to direct measurement, reflection charge level situation is accurately and timely to form two-dimensional signal.
Detection Techniques mature and reliable, easy Project Realization.
Using continuous wave system, equipment cost is reduced, different size blast furnaces are adapted to；Using combined antenna framework, certainly demultiplex
Beam covers and hair receives isolation problem；Using self-adaptive processing algorithm, inhibit blast furnace internal protecting wall clutter and multipath to detection
Interference.
Display and control terminal sends out startup order, and power supply is powered for each subsystem, starts measuring system work.Each subsystem self-test
After form status information --- normal or failure reports display terminal by the digital process interface module.Terminal receives normal system
After state, configuration item parameter is loaded.
The digital process interface module calculates the regional network figure of current measurement sample according to configuration item parameter, and controls servo system
Regiment commander moves antenna and pinpoints successively, and after a wave beam area illumination, the digital process interface module is controlled by synchronizing signal and received and dispatched
Module generates broadband swept-frequency signal, emits after the amplification of antenna transmission channel；The radiofrequency signal of antenna receiving channel connects through antenna
Receive, be mixed by transceiver module, output is resolved into row distance dimension data to the digital process interface module samples, obtain this region at
Figure result.Complete regional network figure all at figure after, carry out splicing transformation, the three-dimensional information figure in one group of blast furnace material distribution face of generation.It follows
Ring carries out regional network figure into figure, that is, realizes the real time monitoring to charge level.
When display and control terminal sends out shutdown command, electricity, measuring system are stopped under power supply.
The working method of the measuring system is that sequence irradiates (scanning) to zone of dispersion, then carries out amplitude correction, combines shape
At three-dimensional information.
Transmitting antenna radiates broadband swept-frequency signal, after signal is reflected via blast furnace material in irradiation area, with transmitting signal
Mixing, low frequency signal enters processing input terminal, after the rejecting to multipath or furnace wall noise signal, by the poly- heart and filtering
The target echo signal of single-point can be obtained in processing.There is overlapping in irradiation between points, need to be modified, with each scattering
The geometric distance of point to reception antenna is input, and changes in coordinates is completed in conjunction with the relevant configuration parameter of mounting structure, last defeated
Go out the three-dimensional information figure of cloth surface.
System is automatically well on scanning, per run-down i.e. to three-dimensional information figure real-time update.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this practicality is new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this practicality is new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing in the equivalent requirements of the claims will be fallen
All changes in justice and range are embraced therein.Any reference numeral in claim should not be considered as limitation
Involved claim.
The above, the only preferred embodiment of the utility model, are not intended to limit the utility model, every according to this
The technical spirit of utility model should be included in this to any trickle amendment, equivalent replacement and improvement made by above example
Within the protection domain of utility model technical solution.
Claims (3)
1. a kind of blast furnace material distribution face three-dimensional information measuring device, which is characterized in that it includes main body outer cover, before main body outer cover includes
The antenna house of side and the main casing of rear side, main casing inside installation guide rail mechanism and measuring mechanism, the measuring mechanism pass through guide rail
Mechanism slips,
The measuring mechanism includes main body multichannel antenna, servo mechanism, power supply and control module unit, the servo
Structure drives multichannel antenna and the movement of control module unit；
The measuring mechanism is equipped with cooling connecting piece with guide rail mechanism.
2. a kind of blast furnace material distribution face three-dimensional information measuring device according to claim 1, which is characterized in that described is mostly logical
Road antenna includes a heavy caliber transmitting antenna and three small-bore reception antennas, described three small-bore reception antennas in etc.
Side triangle, heavy caliber transmitting antenna is at equilateral triangle center.
3. a kind of blast furnace material distribution face three-dimensional information measuring device according to claim 1, which is characterized in that the control
Modular unit includes RF receiving and transmission module and digital processing interface module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721816202.9U CN207891367U (en) | 2017-12-22 | 2017-12-22 | A kind of blast furnace material distribution face three-dimensional information measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721816202.9U CN207891367U (en) | 2017-12-22 | 2017-12-22 | A kind of blast furnace material distribution face three-dimensional information measuring device |
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| Publication Number | Publication Date |
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| CN207891367U true CN207891367U (en) | 2018-09-21 |
Family
ID=63549394
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| CN201721816202.9U Expired - Fee Related CN207891367U (en) | 2017-12-22 | 2017-12-22 | A kind of blast furnace material distribution face three-dimensional information measuring device |
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| CN (1) | CN207891367U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111273287A (en) * | 2020-02-25 | 2020-06-12 | 南京华雷电子工程研究所有限公司 | Blast furnace charge level imaging device, system and measuring method thereof |
| CN114964578A (en) * | 2022-07-27 | 2022-08-30 | 华能(浙江)能源开发有限公司玉环分公司 | Water-cooled wall online stress monitoring method and device based on digital speckles |
-
2017
- 2017-12-22 CN CN201721816202.9U patent/CN207891367U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111273287A (en) * | 2020-02-25 | 2020-06-12 | 南京华雷电子工程研究所有限公司 | Blast furnace charge level imaging device, system and measuring method thereof |
| CN114964578A (en) * | 2022-07-27 | 2022-08-30 | 华能(浙江)能源开发有限公司玉环分公司 | Water-cooled wall online stress monitoring method and device based on digital speckles |
| CN114964578B (en) * | 2022-07-27 | 2022-11-15 | 华能(浙江)能源开发有限公司玉环分公司 | Water-cooled wall online stress monitoring method and device based on digital speckles |
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Granted publication date: 20180921 Termination date: 20191222 |