CN105092045A - Monitoring and early warning system for the temperature of the surface of a rotary kiln body - Google Patents
Monitoring and early warning system for the temperature of the surface of a rotary kiln body Download PDFInfo
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- CN105092045A CN105092045A CN201510217798.XA CN201510217798A CN105092045A CN 105092045 A CN105092045 A CN 105092045A CN 201510217798 A CN201510217798 A CN 201510217798A CN 105092045 A CN105092045 A CN 105092045A
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Abstract
The invention discloses a monitoring and early warning system for the temperature of the surface of a rotary kiln body. The system comprises a microcontroller controller, and an infrared radiation scanner, a synchronous signal module, a display module, an alarming module and a power supply module that are connected to the microcontroller controller. The microcontroller controller includes a calculating unit, a comparing unit and a controlling unit. The power supply module provides electric energy for the microcontroller module, the infrared radiation scanner, the synchronous signal module and the display module. The temperature of a rotary kiln body can be continuously measured in real time, an alarming temperature can be set according to temperature ranges of different sections of the surface of the rotary kiln body that functions normally, and then the rotary kiln body can be protected more accurately.
Description
Technical field
The present invention relates to a kind of infrared light measuring system, particularly relate to a kind of rotary kiln shell surface temperature monitoring early-warning system, belong to field of temperature measurement.
Background technology
In cement production process, most important process procedure is the calcining of cement clinker, and rotary kiln is the nucleus equipment realizing burning clinker of cement, and its working order is directly connected to Yield and quality and raw material, the fuel consumption of grog.Temperature is too high, the damage that conference causes rotary kiln liner is crossed in thermal oscillation, also can bring disaster to kiln shell time serious, and rotary kiln is produced in the process of grog, determines that can kiln the production and safety key factor that operates in production increases with quality up and cost of production down ground be kiln lining.In view of this, in kiln operation process, understand situation in kiln in real time, take appropriate measures in time, preventing kiln lining and kiln shell from damaging is the important guarantee that rotary kiln realizes economical operation.
Rotary kiln is ceaselessly pivotal in operational process, and its speed of gyration constantly changes; Kiln shell surface temperature is a multi-variable function, it is not only relevant to time, kiln axial location, the kiln shell surface factor such as circumferential position, also be subject to the impact of environment temperature and other factors, therefore, kiln shell surface temperature is different from other thermal parameters, is difficult to detect by conventional detection means and show.
Such as application number is a kind of infrared measurement of temperature method of " 201110036109.7 ", comprise the steps: that (1) is when the actual temperature recording measured object is t, automated variable dual wavelength infrared detecting device is utilized to record the radiation intensity E1 (λ 1 of measured object, t) and E2 (λ 2, t), wherein, E1 (λ 1, the radiation intensity of measured object when being t) corresponding wavelength λ 1, E2 (λ 2, the radiation intensity of measured object when being t) corresponding wavelength λ 2; (2) by record E1 (λ 1, t), E2 (λ 2, t) substitute into and formula in, and solve α, the value of δ coefficient, wherein, α, δ are with the material composition of measured object, temperature and the coefficient measuring wavelength and become; (3) factor alpha will solved, in the value generation of δ, returns measured object radiation intensity formula E (λ, t), in=α λ-5 (e δ/λ t-1)-1, the corresponding relation curve between the radiation intensity of measured object under setted wavelength and measured object temperature is obtained; And (4) utilize automated variable dual wavelength infrared detecting device to record the radiation intensity of measured object under setted wavelength, and obtain the temperature of measured object based on the corresponding relation curve between the radiation intensity of measured object under setted wavelength and measured object temperature.This invention measuring accuracy needs to be improved further.
And for example application number is the technical field of a kind of infrared thermometer calibrating of " 201310080745.9 ", and particularly relating to a kind of infrared thermometer calibrating complete equipment, is the equipment examined and determine the property indices of infrared thermometer.This invention comprises with lower part: three-dimensional motion system, three-dimensional motion control and pen recorder, pyrotoxin loading platform and target surface.This invention has the features such as automaticity is high, practical, novel in design, simple to operate, can examine and determine the property indices of various model specification and the different infrared thermometer of profile.Solve the problem of the distance ratio of infrared measurement of temperature instrument and the calibrating of alignment clamp precision, the measured value of infrared thermometer is traced to the source, the infrared thermometer being applied to production field is effectively monitored, ensure that electrical equipment uses watch-dog to detect data accurately and reliably, this invention measuring accuracy needs to be improved further.
Summary of the invention
Technical matters to be solved by this invention provides a kind of rotary kiln shell surface temperature monitoring early-warning system for the deficiency of background technology.
The present invention is for solving the problems of the technologies described above by the following technical solutions:
A kind of rotary kiln shell surface temperature monitoring early-warning system, comprises micro controller module and connected infrared radiation scanner, synchronizing signal module, display module, alarm module and power module; Described micro controller module comprises computing unit, contrast unit and control module, and described power module is micro controller module, infrared radiation scanner, synchronizing signal module and display module provide required electric energy;
Wherein, infrared radiation scanner, for launching infrared light to rotary kiln shell, and then receives the infrared intensity from rotary kiln shell surface;
Synchronizing signal module, is synchronized to computing unit for the infrared intensity received by infrared radiation scanner;
Computing unit, for according to the infrared intensity received, passes through
calculate the surface temperature of rotary kiln shell;
Wherein, L
λfor infrared intensity, λ is infrared wavelength, and c is the infrared light light velocity, and h is pul gram Changshu, and k is Boltzmann Changshu, and T is the surface temperature of rotary kiln shell;
Contrast unit, contrasts for the surface temperature of rotary kiln shell that calculated by computing unit and normal value, if exceed normal value, sends a signal to control module;
Control module, gives the alarm for controlling alarm module according to the signal receiving the transmission of contrast unit;
Display module, for showing the surface temperature of the rotary kiln shell that micro controller module calculates in real time.
As the further preferred version of a kind of rotary kiln shell of the present invention surface temperature monitoring early-warning system, described micro controller module is AVR series monolithic.
As the further preferred version of a kind of rotary kiln shell of the present invention surface temperature monitoring early-warning system, described display module is LCD display.
As the further preferred version of a kind of rotary kiln shell of the present invention surface temperature monitoring early-warning system, described alarm module adopts audible-visual annunciator.
As the further preferred version of a kind of rotary kiln shell of the present invention surface temperature monitoring early-warning system, described power module adopts chargeable lithium cell.
The present invention adopts above technical scheme compared with prior art, has following technique effect:
1, structure of the present invention is simple, measuring accuracy is high;
2, the present invention can the rotary kiln shell of the acquisition in real time surface temperature of safety and precise by infrared radiation scanner;
3, present invention achieves, continuous print measurement real-time to rotary kiln shell temperature, and the temperature range of the different section in the trunk that normally can run according to kiln surface, setting alarm temperature, and then can more accurately to the protection of rotary kiln shell.
Accompanying drawing explanation
Fig. 1 is structure principle chart of the present invention.
Embodiment
Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:
As shown in Figure 1, a kind of rotary kiln shell surface temperature monitoring early-warning system, comprises micro controller module and connected infrared radiation scanner, synchronizing signal module, display module, alarm module and power module; Described micro controller module comprises computing unit, contrast unit and control module, and described power module is micro controller module, infrared radiation scanner, synchronizing signal module and display module provide required electric energy;
Wherein, infrared radiation scanner, for launching infrared light to rotary kiln shell, and then receives the infrared intensity from rotary kiln shell surface;
Synchronizing signal module, is synchronized to computing unit for the infrared intensity received by infrared radiation scanner;
Computing unit, for according to the infrared intensity received, passes through
calculate the surface temperature of rotary kiln shell;
Wherein, L
λfor infrared intensity, λ is infrared wavelength, and c is the infrared light light velocity, and h is pul gram Changshu, and k is Boltzmann Changshu, and T is the surface temperature of rotary kiln shell;
Contrast unit, contrasts for the surface temperature of rotary kiln shell that calculated by computing unit and normal value, if exceed normal value, sends a signal to control module;
Control module, gives the alarm for controlling alarm module according to the signal receiving the transmission of contrast unit;
Display module, for showing the surface temperature of the rotary kiln shell that micro controller module calculates in real time.
Wherein, described micro controller module is AVR series monolithic, and described display module is LCD display, and described alarm module adopts audible-visual annunciator, and described power module adopts chargeable lithium cell.
Fast infrared radiation scanning instrument is a kind of infrared radiation temperature measurement device with rapid scanning function, and be arranged on the appropriate location apart from rotary kiln 30 ~ 100m place, scanning angle is 90 °.Its rotating scanner measures first linearly arrangement in direction along being parallel to rotary kiln axis by the infrared radiation of optical system reception from specific region, rotary kiln shell one, surface (be called and measure unit).Fast infrared temperature measurement scanner scans 150 times along the direction of rotary kiln axis p.s., and rotary kiln often turns around, and produces 200 ~ 400 complete scan.Some scanning obtains: represent the rotary kiln shell some voltage signals of narrow zone Temperature Distribution in surface and the voltage signal of reference temperature, these data just can obtain the operating mode of a certain section in rotary kiln again through relevant treatment.As whether even in kliner coating, ring formation situation, kliner coating or kiln lining come off the information such as scope of position, hot spot.
Kiln synchronizing datum signal generator, when rotary kiln often turns a whole circle, produces the synchronizing pulse that is used as synchronous base, sends into embedded system.Embedded system take synchronizing pulse as benchmark, gathers the temperature data of kiln
AVR single chip has prefetched instruction function, namely when an execution instruction, in advance next instruction is got into, and call instruction can be performed within a clock period; Multiple accumulator type, data processing speed is fast; AVR single chip has 32 general purpose working registers, and being equivalent to has 32 viaducts, can fast passing; Response time is fast.AVR single chip has multiple fixing interrupt vector entry address, can respond interruption fast; AVR single chip power consumption is low.For typical power consumption situation, be 100nA when WDT closes, be more suitable for battery powered application apparatus; The minimum 1.8V of some devices gets final product work; AVR single chip security performance is good.
Fast infrared temperature measurement scanner of the present invention carries out in real time rotary kiln shell temperature, continuous print is measured, after Measurement and Data Processing, and the temperature range of the different section in trunk surface that normally can run according to kiln, setting alarm temperature.In kiln operational process, when any place's actual temperature in trunk surface exceedes normal temperature, system provides alerting signal immediately.
Temperature is higher than the object of absolute zero, and it is just at ceaselessly space radiation electromagnetic wave towards periphery.This electromagnetic wave produced at atom and intramolecules vibration due to the charged particle of interior of articles, is called heat radiation.Heat radiation is a whole electromagnetic ingredient, and the infrared ray that heat radiation electromagnetic wave is differed greatly by wavelength, visible ray, ultraviolet formed.Infrared radiation refers generally to the heat radiation of wavelength between 0.75 ~ 1000 μm.Planck blackbody radiation patterns is the starting point of theory of infrared radiation, and the funtcional relationship between the radianting capacity of absolute black body and wavelength (λ) and temperature (T) is as follows.Micro controller module passes through
calculate the surface temperature of rotary kiln shell, wherein, L
λfor infrared intensity, λ is infrared wavelength, and c is the infrared light light velocity, h pul gram Changshu, k Boltzmann Changshu, the surface temperature of T rotary kiln shell;
Those skilled in the art of the present technique are understandable that, unless otherwise defined, all terms used herein (comprising technical term and scientific terminology) have the meaning identical with the general understanding of the those of ordinary skill in field belonging to the present invention.Should also be understood that those terms defined in such as general dictionary should be understood to have the meaning consistent with the meaning in the context of prior art, unless and define as here, can not explain by idealized or too formal implication.
Above embodiment is only and technological thought of the present invention is described, can not limit protection scope of the present invention with this, and every technological thought proposed according to the present invention, any change that technical scheme basis is done, all falls within scope.By reference to the accompanying drawings embodiments of the present invention are explained in detail above, but the present invention is not limited to above-mentioned embodiment, in the ken that those of ordinary skill in the art possess, under can also or else departing from the prerequisite of present inventive concept, makes various change.
Claims (5)
1. a rotary kiln shell surface temperature monitoring early-warning system, is characterized in that: comprise micro controller module and connected infrared radiation scanner, synchronizing signal module, display module, alarm module and power module; Described micro controller module comprises computing unit, contrast unit and control module, and described power module is micro controller module, infrared radiation scanner, synchronizing signal module and display module provide required electric energy;
Wherein, infrared radiation scanner, for launching infrared light to rotary kiln shell, and then receives the infrared intensity from rotary kiln shell surface;
Synchronizing signal module, is synchronized to computing unit for the infrared intensity received by infrared radiation scanner;
Computing unit, for according to the infrared intensity received, passes through
calculate the surface temperature of rotary kiln shell;
Wherein, L
λfor infrared intensity, λ is infrared wavelength, and c is the infrared light light velocity, and h is pul gram Changshu, and k is Boltzmann Changshu, and T is the surface temperature of rotary kiln shell;
Contrast unit, contrasts for the surface temperature of rotary kiln shell that calculated by computing unit and normal value, if exceed normal value, sends a signal to control module;
Control module, gives the alarm for controlling alarm module according to the signal receiving the transmission of contrast unit;
Display module, for showing the surface temperature of the rotary kiln shell that micro controller module calculates in real time.
2. a kind of rotary kiln shell surface temperature monitoring early-warning system according to claim 1, is characterized in that: described micro controller module is AVR series monolithic.
3. a kind of rotary kiln shell surface temperature monitoring early-warning system according to claim 1, is characterized in that: described display module is LCD display.
4. a kind of rotary kiln shell surface temperature monitoring early-warning system according to claim 1, is characterized in that: described alarm module adopts audible-visual annunciator.
5. a kind of rotary kiln shell surface temperature monitoring early-warning system according to claim 1, is characterized in that: described power module adopts chargeable lithium cell.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510217798.XA CN105092045A (en) | 2015-04-30 | 2015-04-30 | Monitoring and early warning system for the temperature of the surface of a rotary kiln body |
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| CN201510217798.XA CN105092045A (en) | 2015-04-30 | 2015-04-30 | Monitoring and early warning system for the temperature of the surface of a rotary kiln body |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105823561A (en) * | 2016-04-28 | 2016-08-03 | 无锡昊瑜节能环保设备有限公司 | Method for measuring surface temperature of rotary kiln carcass body based on infrared |
| CN105953924A (en) * | 2016-04-28 | 2016-09-21 | 无锡昊瑜节能环保设备有限公司 | Rotary kiln body surface temperature monitoring system based on radio frequency identification |
| CN105953923A (en) * | 2016-04-28 | 2016-09-21 | 无锡昊瑜节能环保设备有限公司 | Rotary kiln body surface temperature remote monitoring system |
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| CN1445479A (en) * | 2002-03-18 | 2003-10-01 | 中南大学 | On-line monitoring system for multiple parallelled rotary kiln |
| CN1566911A (en) * | 2003-07-04 | 2005-01-19 | 北方工业大学 | Method for monitoring temperature of rotary kiln barrel through infrared scanning |
| CN101083543A (en) * | 2006-05-29 | 2007-12-05 | 株式会社东芝 | Server equipment |
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| CN1445479A (en) * | 2002-03-18 | 2003-10-01 | 中南大学 | On-line monitoring system for multiple parallelled rotary kiln |
| CN1566911A (en) * | 2003-07-04 | 2005-01-19 | 北方工业大学 | Method for monitoring temperature of rotary kiln barrel through infrared scanning |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105823561A (en) * | 2016-04-28 | 2016-08-03 | 无锡昊瑜节能环保设备有限公司 | Method for measuring surface temperature of rotary kiln carcass body based on infrared |
| CN105953924A (en) * | 2016-04-28 | 2016-09-21 | 无锡昊瑜节能环保设备有限公司 | Rotary kiln body surface temperature monitoring system based on radio frequency identification |
| CN105953923A (en) * | 2016-04-28 | 2016-09-21 | 无锡昊瑜节能环保设备有限公司 | Rotary kiln body surface temperature remote monitoring system |
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