CN103966376B - The temperature online of blast furnace stack, bosh detects sensor-based system - Google Patents
The temperature online of blast furnace stack, bosh detects sensor-based system Download PDFInfo
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- CN103966376B CN103966376B CN201410196309.2A CN201410196309A CN103966376B CN 103966376 B CN103966376 B CN 103966376B CN 201410196309 A CN201410196309 A CN 201410196309A CN 103966376 B CN103966376 B CN 103966376B
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Abstract
The invention discloses the temperature online detection sensor-based system of a kind of blast furnace stack, bosh, comprise the thermal radiation propagation medium be installed in Wall of Blast Furnace, and photoelectric conversion module, wireless transmitter module, wireless receiving module and upper computer, in furnace wall, thermal radiation propagation medium is connected with photoelectric conversion module, photoelectric conversion module is connected with wireless transmitter module, wireless transmitter module is connected with wireless receiving module, and wireless receiving module is connected with upper computer.The present invention, by shaft, bosh position installation thermal radiation furnace temperature detecting line sensor at Wall of Blast Furnace, detects the ratio of thermal radiation energy corresponding to high furnace temperature, realizes contactless blast furnace temperature real-time online and detect.
Description
Technical field
The present invention relates to the temperature online detection sensor-based system of a kind of blast furnace stack, bosh, belong to blast furnace temperature detection technique field.
Background technology
Because blast furnace production process is complicated, general is all indirectly obtain evaluation to furnace temperature by the silicone content of molten iron, but needs just can carry out after tapping a blast furnace due to the measurement of molten iron silicon content, greatly delayed in time, the change of current furnace temperature can not be reflected, the regulating and controlling of furnace temperature is had little significance.
The method forecast blast furnace temperature is at present a lot, comprise: regression model, time series model, neural network model and Expert System Model etc., these methods just achieve the forecast for the spot temperature such as blast furnace roof, cupola well, can not realize the on-line checkingi of furnace temperature.The document of water temperature difference method and the research of cross temperature method is also many in addition, is also all the forecast being realized blast furnace throat, cupola well furnace temperature by indirect inspection, lacks real-time.
Shaft mainly plays a part the preheating of furnace charge, heating, reduction and slag making, bosh position forms a large amount of slags, and the real-time online of shaft and bosh temperature detects, for the production efficiency improving blast furnace, guaranteeing the working of a furnace stable smooth operation of blast furnace, is very important and necessity.
The domestic and international on-line checkingi for blast furnace stack, bosh temperature, does not also see relevant Research Literature at present, and therefore the present invention has Research Significance and real promotion prospect very much.
Summary of the invention
The technical issues that need to address of the present invention are just the defect overcoming prior art, the temperature online of a kind of blast furnace stack, bosh is provided to detect sensor-based system, it is by shaft, the bosh position installation thermal radiation furnace temperature detecting line sensor at Wall of Blast Furnace, detect the ratio of thermal radiation energy corresponding to high furnace temperature, realize contactless blast furnace temperature real-time online and detect.
For solving the problem, the present invention adopts following technical scheme:
The invention provides the temperature online detection sensor-based system of a kind of blast furnace stack, bosh, described on-line checkingi sensor-based system comprises the thermal radiation propagation medium be installed in Wall of Blast Furnace, and photoelectric conversion module, wireless transmitter module, wireless receiving module and upper computer, in furnace wall, thermal radiation propagation medium is connected with photoelectric conversion module, photoelectric conversion module is connected with wireless transmitter module, wireless transmitter module is connected with wireless receiving module, and wireless receiving module is connected with upper computer.
Further: photoelectric conversion module comprises: set of lenses, low bandwidth colour filter group, ccd video camera, image pick-up card, signal treatment circuit, micro-chip, indicating meter; Set of lenses is connected with low bandwidth colour filter group, and low bandwidth colour filter group is connected with ccd video camera, and ccd video camera is connected with image pick-up card, and image pick-up card is connected with signal treatment circuit, and micro-chip is connected with signal treatment circuit and indicating meter.
Further: in furnace wall, thermal radiation propagation medium is the material high to infrared radiation transmissivity.
Further: thermal radiation propagation medium surface coating in furnace wall, outside plated film, wrap up layer of insulation material, further: to prevent source of radiation energy transmission radially.
Principle of work of the present invention is: the set of lenses in photoelectric conversion module is made up of two pieces of lens, is circle, and intersection is 90 ° of installations, is switched the light obtaining two bundle different wave lengths by timing rotation.Propagate radiant energy medium is embedded in the furnace wall at blast furnace stack, bosh position, after the partial radiation energy that in-furnace temperature is corresponding passes through propagate radiant energy medium, because in furnace wall, thermal radiation propagation medium has high permeability to ir radiation, most quantity of radiant energy can arrive photoelectric conversion module by it, the radiating capacity received is carried out opto-electronic conversion according to the light of two bundle specific wavelengths by photoelectric conversion module, and automatically asks for the ratio of the electrical signal representing two-beam energy.Be the ratio of the optical radiation energy of two bundle specific wavelengths due to what ask for, therefore in the process of optical transport, due to the radiating capacity that scattering, thermal conduction and absorption lose, can not have an impact to the measuring result of furnace temperature, the accuracy of thermometric can be guaranteed.
Photoelectric conversion module sends the ratio signal of representation temperature to wireless transmitter module, ratio signal is wirelessly transferred to wireless receiving module by wireless transmitter module, wireless receiving module sends this signal to upper computer, on upper computer, correlative value signal carries out calculation process, finally obtain the furnace temperature at corresponding shaft, bosh position, realize the furnace temperature on-line checkingi of blast furnace stack, bosh.
In photoelectric conversion module, after set of lenses receives the thermal radiation of source of radiation, entering low bandwidth colour filter group through converging, obtaining the two-beam of different wave length.For improving the tolerance range of thermometric, reduce the bandwidth of colour filter as far as possible.About the selection of two-beam wavelength, wavelength interval is larger, and thermometric is more accurate, but long wave brightness is high, shortwave low lightness, and for making two wavelength be operated in linear section simultaneously, △ λ can not be excessive.Consider the spectral response of sensitivity and CCD, select △ λ=0.13 μm, λ
1=0.83 μm, λ
2=0.96 μm.After being processed by ccd video camera, image pick-up card, signal treatment circuit, micro-chip Received signal strength, is obtained the ratio coefficient be directly proportional to source temperature, is shown simultaneously by indicating meter.
Thus, the invention has the beneficial effects as follows, by installing thermal radiation energy ration temperature probe on blast furnace, carry out contactless temperature-measuring, in the technical field of blast furnace temperature-measuring, solution shaft, bosh position are difficult to a difficult problem for the real-time online measuring carrying out in-furnace temperature, improve the production efficiency of blast furnace, guarantee working of a furnace stable smooth operation and the good quality and high output of blast furnace.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention will be further described.
Fig. 1 be the present invention relates to a kind of blast furnace stack, bosh furnace temperature detecting line sensor structure composition frame chart;
Fig. 2 is the structure composition frame chart of photoelectric conversion section of the present invention.
Embodiment
As shown in Figure 1, the invention provides the temperature online detection sensor-based system of a kind of blast furnace stack, bosh, described on-line checkingi sensor-based system comprises the thermal radiation propagation medium 1 be installed in Wall of Blast Furnace, and photoelectric conversion module 2, wireless transmitter module 3, wireless receiving module 4 and upper computer 5, in furnace wall, thermal radiation propagation medium is connected with photoelectric conversion module, photoelectric conversion module is connected with wireless transmitter module, wireless transmitter module is connected with wireless receiving module, and wireless receiving module is connected with upper computer.
As shown in Figure 2, photoelectric conversion module comprises: set of lenses 6, low bandwidth colour filter group 7, ccd video camera 8, image pick-up card 9, signal treatment circuit 10, micro-chip 11, indicating meter 12; Set of lenses is connected with low bandwidth colour filter group, and low bandwidth colour filter group is connected with ccd video camera, and ccd video camera is connected with image pick-up card, and image pick-up card is connected with signal treatment circuit, and micro-chip is connected with signal treatment circuit and indicating meter.
In described stove, propagate radiant energy medium is the material high to infrared radiation transmissivity.
Describedly outside plated film, wrap up layer of insulation material at thermal radiation propagation medium surface coating, to prevent source of radiation energy transmission radially.
Set of lenses in described photoelectric conversion module is made up of two pieces of lens, is circle, and intersection is 90 ° of installations, is switched the light obtaining two bundle different wave lengths by timing rotation.
Propagate radiant energy medium 1 is embedded in the furnace wall at blast furnace stack, bosh position, after the partial radiation energy that in-furnace temperature is corresponding passes through propagate radiant energy medium 1, because propagate radiant energy medium 1 pair of ir radiation has high permeability, most quantity of radiant energy can arrive photoelectric conversion module 2 by it, the radiating capacity received is carried out opto-electronic conversion according to the light of two bundle specific wavelengths by photoelectric conversion module 2, and automatically asks for the ratio of the electrical signal representing two-beam energy.Be the ratio of the optical radiation energy of two bundle specific wavelengths due to what ask for, therefore in the process of optical transport, due to the radiating capacity that scattering, thermal conduction and absorption lose, can not have an impact to the measuring result of furnace temperature, the accuracy of thermometric can be guaranteed.
Photoelectric conversion module 2 sends the ratio signal of representation temperature to wireless transmitter module 3, ratio signal is wirelessly transferred to wireless receiving module 4 by wireless transmitter module 3, wireless receiving module 4 sends this signal to upper computer 3, on upper computer 3, correlative value signal carries out calculation process, finally obtain the furnace temperature at corresponding shaft, bosh position, realize the furnace temperature on-line checkingi of blast furnace stack, bosh.
In photoelectric conversion module 2, after set of lenses 6 receives the thermal radiation of source of radiation, entering low bandwidth colour filter group 7 through converging, obtaining the two-beam of different wave length.For improving the tolerance range of thermometric, reduce the bandwidth of colour filter as far as possible.About the selection of two-beam wavelength, wavelength interval is larger, and thermometric is more accurate, but long wave brightness is high, shortwave low lightness, and for making two wavelength be operated in linear section simultaneously, △ λ can not be excessive.Consider the spectral response of sensitivity and CCD, select △ λ=0.13 μm, λ
1=0.83 μm, λ
2=0.96 μm.After being processed by ccd video camera 8, image pick-up card 9, signal treatment circuit 10, micro-chip Received signal strength, obtains the ratio coefficient be directly proportional to source temperature, is shown by indicating meter 12 simultaneously.
Last it is noted that obviously, above-described embodiment is only for example of the present invention is clearly described, and the restriction not to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And thus the apparent change of amplifying out or variation be still among protection scope of the present invention.
Claims (4)
1. the temperature online of a blast furnace stack, bosh detects sensor-based system, it is characterized in that: described on-line checkingi sensor-based system comprises the thermal radiation propagation medium be installed in Wall of Blast Furnace, and photoelectric conversion module, wireless transmitter module, wireless receiving module and upper computer, in furnace wall, thermal radiation propagation medium is connected with photoelectric conversion module, photoelectric conversion module is connected with wireless transmitter module, wireless transmitter module is connected with wireless receiving module, and wireless receiving module is connected with upper computer;
Photoelectric conversion module comprises: set of lenses, low bandwidth colour filter group, ccd video camera, image pick-up card, signal treatment circuit, micro-chip, indicating meter; Set of lenses is connected with low bandwidth colour filter group, and low bandwidth colour filter group is connected with ccd video camera, and ccd video camera is connected with image pick-up card, and image pick-up card is connected with signal treatment circuit, and micro-chip is connected with signal treatment circuit and indicating meter.
2.
2.the temperature online of blast furnace stack as claimed in claim 1, bosh detects sensor-based system, it is characterized in that: in furnace wall, thermal radiation propagation medium is the material high to infrared radiation transmissivity.
3.
3.the temperature online of blast furnace stack as claimed in claim 2, bosh detects sensor-based system, it is characterized in that: thermal radiation propagation medium surface coating in furnace wall, outside plated film, wraps up layer of insulation material, to prevent source of radiation energy transmission radially.
4.
4.the temperature online of blast furnace stack as claimed in claim 3, bosh detects sensor-based system, it is characterized in that: the set of lenses in photoelectric conversion module is made up of two pieces of lens, be circle, intersection is 90 ° of installations, is switched the light obtaining two bundle different wave lengths by timing rotation.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410196309.2A CN103966376B (en) | 2014-05-12 | 2014-05-12 | The temperature online of blast furnace stack, bosh detects sensor-based system |
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| CN201410196309.2A CN103966376B (en) | 2014-05-12 | 2014-05-12 | The temperature online of blast furnace stack, bosh detects sensor-based system |
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| CN103966376B true CN103966376B (en) | 2015-09-16 |
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| CN104611483B (en) * | 2015-01-07 | 2016-07-13 | 内蒙古科技大学 | A kind of furnace temperature online test method based on cooling wall thermic load and kiln lining thickness measuring |
| CN117806169A (en) * | 2024-01-17 | 2024-04-02 | 北京工业大学 | Furnace temperature early warning optimization method, system, terminal and medium based on neural network |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS55119115A (en) * | 1979-03-08 | 1980-09-12 | Kobe Steel Ltd | Confirming method for worn-out condition of fire proofing wall at blast furnace |
| CN2235603Y (en) * | 1995-03-11 | 1996-09-18 | 包头钢铁学院 | On-line means for measuring thinkniss of lining of blast furnace |
| CN101750149A (en) * | 2010-01-14 | 2010-06-23 | 内蒙古科技大学 | Vacuum chamber radiation source temperature sensor |
| CN203807499U (en) * | 2014-05-12 | 2014-09-03 | 内蒙古科技大学 | System for detecting and sensing temperature at stack and bosh of blast furnace online |
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