CN107271045A - Position calibration method in a kind of rotary kiln infrared scanning temperature measurement system - Google Patents

Position calibration method in a kind of rotary kiln infrared scanning temperature measurement system Download PDF

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Publication number
CN107271045A
CN107271045A CN201710341038.9A CN201710341038A CN107271045A CN 107271045 A CN107271045 A CN 107271045A CN 201710341038 A CN201710341038 A CN 201710341038A CN 107271045 A CN107271045 A CN 107271045A
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msub
mrow
mfrac
rotary kiln
mtr
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代少升
程亚军
酉昌辉
张辛
余良兵
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Chongqing University of Post and Telecommunications
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Chongqing University of Post and Telecommunications
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Priority to CN201710341038.9A priority Critical patent/CN107271045A/en
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/0044—Furnaces, ovens, kilns
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
    • F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
    • F27B7/42—Arrangement of controlling, monitoring, alarm or like devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/80—Calibration

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)

Abstract

Position calibration method in a kind of rotary kiln infrared scanning temperature measurement system is claimed in the present invention, belongs to signal processing technology field.Because traditional equidistant location algorithm has larger position error, the present invention proposes position calibration method in a kind of rotary kiln infrared scanning temperature measurement system on the basis of traditional equidistantly location algorithm.The location of rotary kiln tyre temperature is very low, the present invention utilizes the characteristics of four wheel belt of rotary kiln surface are readily identified, the scanning period of four characteristic points is drawn according to traditional equidistant scanning algorithm, then according to the scanning sequency of scanner, from kiln hood to kiln tail each two adjacent feature point utilize equidistant algorithm, scanning element is corrected, so as to draw the spacing of scanning element.By this method, rotary kiln surface temperature spot can be accurately positioned.The present invention relatively coincide in terms of rotary kiln abort situation point location with physical location, and positional accuracy is high, has higher application and promotional value in terms of market.

Description

Position calibration method in a kind of rotary kiln infrared scanning temperature measurement system
Technical field
The invention belongs to field of signal processing, belong to a kind of rotary kiln surface temperature spot the Position Registration Algorithm.
Background technology
In recent years, with the high speed development of the industries such as China's building materials, metallurgy, chemical industry and environmental protection, the quantity of rotary kiln is not Disconnected increase.Rotary kiln is the nucleus equipment that raw material calcines link in production technology, and the quality of its working order is directly connected to ripe The Yield and quality and production cost of material.Inner liner of rotary kiln is refractory material, in temperature factor, chemical erosion, mechanical wear etc. no With in the case of, refractory material can be made to occur different degrees of damage, kiln body thickness can become localization, and then be distributed irregular. Once local refractory material comes off excessively, ring formation and hot spot accident can be caused, is seriously threatened to production and safety belt.Rotary kiln Surface temperature is an important parameter for reflecting inner case, and the thickness degree of its liner can be obtained by rotary kiln surface temperature Know, local Fall of lining may cause local temperature too high, it may occur that hot spot accident, to producer tremendous economic can be brought to damage Lose.Therefore, need to be accurately positioned the rotary kiln failure such as hot spot, ring formation in the industrial production, the position of failure generation found out in time, Adopt remedial measures.
Traditional equidistant location algorithm has important application, but this positioning in terms of rotary kiln surface temperature monitoring Algorithm is in positioning with certain error.In daily industrial production, using infrared scanning temperature measurement system to rotary kiln surface Temperature monitoring is carried out, temp measuring system is made up of scanner and PC ends monitoring of software, scanner is returned with uniform angular velocity rotation sweep Rotary kiln, scanner collection rev kiln temperature degree, as one scanning element.Scanner when mounted, and rotary kiln kiln hood and Kiln tail has fixed angle, so the points of scanning are also fixed.Equidistant algorithm is calculated using formula Δ d=L/N The spacing (N is scanning element sum in formula, and L is rotary kiln length) gone out between adjacent scanning element, that is, assume between all consecutive points Distance it is equal.However, rotary kiln infrared scanning temperature measurement system is used between angularly scan mode, adjacent scanning element Distance is unequal.Therefore, traditional equidistant location algorithm has larger position error, it is impossible to meets and realizes positioning Demand.
The content of the invention
Present invention seek to address that above problem of the prior art.Propose one kind and greatly improve rotary kiln surface temperature Position calibration method in the rotary kiln infrared scanning temperature measurement system of spot placement accuracy.Technical scheme is as follows：
Position calibration method in a kind of rotary kiln infrared scanning temperature measurement system, it comprises the following steps：
1) scanner form, is adjusted, makes the whole surface of rotary kiln in the range of the scanning field of view of scanner；
2), in-site measurement data below：The horizontal vertical of scanner and rotary kiln is apart from H, the length L of rotary kiln, revolution Physical length L of four wheel belt of kiln apart from kiln hood1、L2、L3、L4, determine the number of scan points N and each two scanning element of scanner Distance, delta d；
3) the physical location length L of four wheel belt, is calibrated according to equidistant algorithm11、L12、L13、L14, then draw wheel With corresponding scanning period N1、N2、N3、N4, N1The first round is represented with corresponding sequence number, by sweep number, equidistant algorithm mark Fixed wheel belt position length, four wheel belt are respectively L apart from the length of kiln hood1、L2、L3、L4And the physical location length of wheel belt L11、L12、L13、L14, calculate all separation delta i scanned after point calibrations between each two adjacent feature point；
4), last after scanning point calibration, the separation delta i of the scanning element after correction just can calculate m scanning elements pair Physical location that should be on rotary kiln, i.e. distance of the scanning element to kiln hood0 ＜ m ＜ N.
Further, step 2) in by the number of scan points of rotary kiln length and scanning system can draw arbitrary neighborhood scan Sweep span between point：
Δ d=L/N
It is possible thereby to calculate position L of the scanning element on rotary kilni：
L is the length of rotary kiln in formula, and N is the number of scan points of scanning system, and N=600, i is the sequence of some scanning element Number, sequence numbers and 0 ＜ i≤600 of the i for some scanning element.
Further, in a step 102, the scanning numbering formula N of characteristic point is calculated1、N2、N3、N4For：
L in above formula11、L12、L13、L14The position of each wheel belt of respectively equidistant algorithm demarcation, Δ d is adjacent scanning element Spacing, N is number of scan points, and L is long for the kiln of rotary kiln.
Further, the step 3) corrected after each sweep span Δ i be：
L in above formula11、L12、L13、L14The position L of each wheel belt of respectively equidistant algorithm demarcation1、L2、L3、L4For four The physical location of characteristic point, N1、N2、N3、N4Numbered for scanning element.
Further, the step 4) the scanning element spacing after correcting can calculate m scanning elements correspondence revolution Physical location on kiln is the point to kiln hood length lm：
L in above formula1、L2、L3、L4For the physical location of four characteristic points of rotary kiln, L11、L12、L13、L14Between respectively waiting The position for each wheel belt demarcated away from algorithm, Δ d is adjacent scanning element spacing, and N is number of scan points, and L is long for the kiln of rotary kiln, N1、 N2、N3、N4Numbered for scanning element.
Advantages of the present invention and have the beneficial effect that：
The present invention is accurately fixed to meet rotary kiln thermometric process for the existing larger error for being located equidistant method presence Position requires that the present invention is by choosing four characteristic points above rotary kiln, and they are four wheel belt of rotary kiln respectively.In temperature prison During survey, this four characteristic point temperature are relatively low, it is easy to recognize, count kiln hood in and kiln tail has six characteristic points altogether, such as Fig. 1 institutes Show.Original scanning period is corrected using this four characteristic points, accurate scanning element position can be obtained.
The present invention proposes that position calibration method is based on traditional equidistant positioning in rotary kiln infrared scanning temperature measurement system Position correction, relatively conventional equidistant localization method pole are carried out to surface sweeping point by using the physical location of characteristic point in method Big improves rotary kiln surface temperature spot placement accuracy, effectively instructs staff to carry out fault detect, with extensive Application prospect.
Brief description of the drawings
Fig. 1 is that present invention offer preferred embodiment is traditional equidistant algorithm schematic diagram, the length of rotary kiln in figure Sweep span can be calculated with the scanning constant points of scanning system, and then draws the physical location of all scanning elements.
Accompanying drawing 2 be set forth herein position calibration method schematic diagram, by the physical location of four characteristic points in figure and between waiting The feature spot scan numbering obtained away from localization method carries out position correction, scanning element after then being corrected to all scanning elements Position.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, detailed Carefully describe.Described embodiment is only a part of embodiment of the present invention.
The present invention solve above-mentioned technical problem technical scheme be：
The present invention is by choosing four characteristic points above rotary kiln, and they are four wheel belt of rotary kiln respectively.In temperature In monitoring process, this four characteristic point temperature are relatively low, it is easy to recognize, count kiln hood in and kiln tail has six characteristic points altogether, such as Fig. 1 institutes Show.Original scanning period is corrected using this four characteristic points, accurate scanning element position can be obtained.
The technical scheme of position calibration method is as follows in rotary kiln surface infrared scan thermometric：
101st, according to schematic diagram 1, the physical length L of rotary kiln is actually measured at scene, is calculated by traditional equidistant positioning Number of scan points N, the rotary kiln length L of method and scanning system can obtain two adjacent scanning element separation delta d and scanning element and return Position L on rotary kilni。
102nd, according to the current location (low temperature point to the position of kiln hood) that characteristic point is surveyed in scanning element spacing and software, meter Calculate the scanning numbering of characteristic point.
103rd, as shown in schematic diagram 2, wherein N1、N2、N3、N4The scanning numbering of respectively four wheel belt, in-site measurement goes out back Four wheel belt of rotary kiln are apart from the physical location of kiln hood, respectively L1、L2、L3、L4, then using the physical location of characteristic point to sweeping Described point carries out position correction.
104th, reality of the m scanning elements correspondence on rotary kiln can be calculated according to the position of each scanning element after correction Position (point to kiln hood length).
Further, it can show that arbitrary neighborhood is swept by the number of scan points of rotary kiln length and scanning system in step 101 Sweep span between described point：
Δ d=L/N
It is possible thereby to calculate position L of the scanning element on rotary kilni：
L is the length of rotary kiln in formula, and N is N=600 in the number of scan points of scanning system, the system, and i scans for some Point.
In a step 102, the scanning numbering formula N of characteristic point is calculated1、N2、N3、N4For：
L in above formula11、L12、L13、L14The position of each wheel belt of respectively equidistant algorithm demarcation, Δ d is adjacent scanning element Spacing, N is number of scan points, and L is long for the kiln of rotary kiln.
In step 103, each sweep span Δ i after being corrected is：
L in above formula11、L12、L13、L14The position L of each wheel belt of respectively equidistant algorithm demarcation1、L2、L3、L4For four The physical location of characteristic point, Δ d is adjacent scanning element spacing, and N is number of scan points, and L is long for the kiln of rotary kiln, N1、N2、N3、N4For Scanning element is numbered.
At step 104, the scanning element spacing after correcting can calculate reality of the m scanning elements correspondence on rotary kiln Border position (referring to the point to kiln hood length) lm：
L in above formula1、L2、L3、L4For the physical location of four characteristic points of rotary kiln, L11、L12、L13、L14Between respectively waiting The position for each wheel belt demarcated away from algorithm, Δ d is adjacent scanning element spacing, and N is number of scan points, and L is long for the kiln of rotary kiln, N1、 N2、N3、N4Numbered for scanning element.
The present invention is specifically described with reference to the infrared scanning system of laboratory development.
Rotary kiln is a large-size cylinder body structure, and scanner can collect the temperature of rotary kiln surface to cylinder external scan Information is spent, under the driving of scanner motor internal, the speculum above mechanical system scans infrared light reflection to detector Instrument is contour and from left to right it is scanned with rotary kiln when mounted, this makes it possible to collect above rotary kiln one Row data.
The present invention carries out proof of algorithm survey using southwestern Cement Co., Ltd Guangan, Xiushan Mountain production line actual production data Examination.Rotary kiln length is L=60m, the total number of scan points N=600 of this infrared scanning system system.Calculated by kiln length and number of scan points The scanning element numbering of four wheel belt positions in the spacing and rotary kiln of adjacent scanning element.
Scanning element is corrected by data above and according to localization method proposed by the present invention again.
Finally according to ranging formulaDraw physical locations of the scanning element i on rotary kiln.
The above embodiment is interpreted as being merely to illustrate the present invention rather than limited the scope of the invention. After the content for the record for having read the present invention, technical staff can make various changes or modifications to the present invention, these equivalent changes Change and modification equally falls into the scope of the claims in the present invention.

Claims (5)

1. position calibration method in a kind of rotary kiln infrared scanning temperature measurement system, it is characterised in that comprise the following steps：
1) scanner form, is adjusted, makes the whole surface of rotary kiln in the range of the scanning field of view of scanner；
2), in-site measurement data below：The horizontal vertical of scanner and rotary kiln is apart from H, the length L of rotary kiln, rotary kiln four Physical length L of the individual wheel belt apart from kiln hood1、L2、L3、L4, determine the number of scan points N of scanner and the distance of each two scanning element Δd；
3) the physical location length L of wheel belt, is calibrated according to equidistant algorithm11、L12、L13、L14, then draw four wheel belt pair The scanning period N answered1、N2、N3、N4, N1The scanning element sequence number of first round band is represented, is demarcated by sweep number, equidistant algorithm Wheel belt position length, the length of wheel belt positional distance kiln hood, L1、L2、L3、L4And the physical location length L of wheel belt11、L12、 L13、L14, calculate all separation delta i scanned after point calibrations between each two adjacent feature point；
4), last after scanning point calibration, the separation delta i of scanning element just can calculate m scanning elements correspondence and return after correction Physical location on rotary kiln, i.e. distance of the scanning element to kiln hood
2. position calibration method in rotary kiln infrared scanning temperature measurement system according to claim 1, it is characterised in that step 2) sweep span between arbitrary neighborhood scanning element can be drawn by the number of scan points of rotary kiln length and scanning system in：
Δ d=L/N
It is possible thereby to calculate position L of the scanning element on rotary kilni：
<mrow> <msub> <mi>L</mi> <mi>i</mi> </msub> <mo>=</mo> <munderover> <mo>&amp;Sigma;</mo> <mrow> <mi>n</mi> <mo>=</mo> <mn>0</mn> </mrow> <mi>i</mi> </munderover> <mi>&amp;Delta;</mi> <mi>d</mi> <mo>=</mo> <mi>&amp;Delta;</mi> <mi>d</mi> <mo>&amp;times;</mo> <mi>i</mi> <mo>=</mo> <mfrac> <mrow> <mi>i</mi> <mo>&amp;times;</mo> <mi>L</mi> </mrow> <mi>N</mi> </mfrac> </mrow>
L is the length of rotary kiln in formula, and N is the number of scan points of scanning system, and N=600, i is the sequence number of some scanning element, i Sequence number and 0 ＜ i≤600 for some scanning element.
3. position calibration method in rotary kiln infrared scanning temperature measurement system according to claim 1 or 2, it is characterised in that In a step 102, the scanning numbering formula N of characteristic point is calculated1、N2、N3、N4For：
<mfenced open = "{" close = ""> <mtable> <mtr> <mtd> <mrow> <msub> <mi>N</mi> <mn>1</mn> </msub> <mo>=</mo> <msub> <mi>L</mi> <mn>11</mn> </msub> <mo>/</mo> <mi>&amp;Delta;</mi> <mi>d</mi> <mo>=</mo> <mfrac> <mrow> <msub> <mi>L</mi> <mn>11</mn> </msub> <mo>&amp;times;</mo> <mi>N</mi> </mrow> <mi>L</mi> </mfrac> </mrow> </mtd> </mtr> <mtr> <mtd> <mrow> <msub> <mi>N</mi> <mn>2</mn> </msub> <mo>=</mo> <msub> <mi>L</mi> <mn>12</mn> </msub> <mo>/</mo> <mi>&amp;Delta;</mi> <mi>d</mi> <mo>=</mo> <mfrac> <mrow> <msub> <mi>L</mi> <mn>12</mn> </msub> <mo>&amp;times;</mo> <mi>N</mi> </mrow> <mi>L</mi> </mfrac> </mrow> </mtd> </mtr> <mtr> <mtd> <mrow> <msub> <mi>N</mi> <mn>3</mn> </msub> <mo>=</mo> <msub> <mi>L</mi> <mn>13</mn> </msub> <mo>/</mo> <mi>&amp;Delta;</mi> <mi>d</mi> <mo>=</mo> <mfrac> <mrow> <msub> <mi>L</mi> <mn>13</mn> </msub> <mo>&amp;times;</mo> <mi>N</mi> </mrow> <mi>L</mi> </mfrac> </mrow> </mtd> </mtr> <mtr> <mtd> <mrow> <msub> <mi>N</mi> <mn>4</mn> </msub> <mo>=</mo> <msub> <mi>L</mi> <mn>14</mn> </msub> <mo>/</mo> <mi>&amp;Delta;</mi> <mi>d</mi> <mo>=</mo> <mfrac> <mrow> <msub> <mi>L</mi> <mn>14</mn> </msub> <mo>&amp;times;</mo> <mi>N</mi> </mrow> <mi>L</mi> </mfrac> </mrow> </mtd> </mtr> </mtable> </mfenced>
L in above formula11、L12、L13、L14The position of each wheel belt of respectively equidistant algorithm demarcation, Δ d is adjacent scanning element spacing, N is number of scan points, and L is long for the kiln of rotary kiln.
4. position calibration method in rotary kiln infrared scanning temperature measurement system according to claim 3, it is characterised in that described Step 3) corrected after each sweep span Δ i be：
<mrow> <mi>&amp;Delta;</mi> <mi>i</mi> <mo>=</mo> <mfenced open = "{" close = ""> <mtable> <mtr> <mtd> <msub> <mi>L</mi> <mn>1</mn> </msub> <mo>/</mo> <msub> <mi>N</mi> <mn>1</mn> </msub> <mo>=</mo> <mfrac> <mrow> <msub> <mi>L</mi> <mn>1</mn> </msub> <mo>&amp;times;</mo> <mi>L</mi> </mrow> <mrow> <msub> <mi>L</mi> <mn>11</mn> </msub> <mo>&amp;times;</mo> <mi>N</mi> </mrow> </mfrac> <mo>(</mo> <mn>0</mn> <mo>&amp;le;</mo> <mi>i</mi> <mo>&amp;le;</mo> <msub> <mi>N</mi> <mn>1</mn> </msub> <mo>)</mo> </mtd> </mtr> <mtr> <mtd> <mfrac> <mrow> <msub> <mi>L</mi> <mn>2</mn> </msub> <mo>-</mo> <msub> <mi>L</mi> <mn>1</mn> </msub> </mrow> <mrow> <msub> <mi>N</mi> <mn>2</mn> </msub> <mo>-</mo> <msub> <mi>N</mi> <mn>1</mn> </msub> </mrow> </mfrac> <mo>=</mo> <mfrac> <mrow> <mo>(</mo> <msub> <mi>L</mi> <mn>2</mn> </msub> <mo>-</mo> <msub> <mi>L</mi> <mn>1</mn> </msub> <mo>)</mo> <mo>&amp;times;</mo> <mi>L</mi> </mrow> <mrow> <mo>(</mo> <msub> <mi>L</mi> <mn>12</mn> </msub> <mo>-</mo> <msub> <mi>L</mi> <mn>11</mn> </msub> <mo>)</mo> <mo>&amp;times;</mo> <mi>N</mi> </mrow> </mfrac> <mo>(</mo> <msub> <mi>N</mi> <mn>1</mn> </msub> <mo>&amp;le;</mo> <mi>i</mi> <mo>&lt;</mo> <msub> <mi>N</mi> <mn>2</mn> </msub> <mo>)</mo> </mtd> </mtr> <mtr> <mtd> <mfrac> <mrow> <msub> <mi>L</mi> <mn>3</mn> </msub> <mo>-</mo> <msub> <mi>L</mi> <mn>2</mn> </msub> </mrow> <mrow> <msub> <mi>N</mi> <mn>3</mn> </msub> <mo>-</mo> <msub> <mi>N</mi> <mn>2</mn> </msub> </mrow> </mfrac> <mo>=</mo> <mfrac> <mrow> <mo>(</mo> <msub> <mi>L</mi> <mn>3</mn> </msub> <mo>-</mo> <msub> <mi>L</mi> <mn>2</mn> </msub> <mo>)</mo> <mo>&amp;times;</mo> <mi>L</mi> </mrow> <mrow> <mo>(</mo> <msub> <mi>L</mi> <mn>13</mn> </msub> <mo>-</mo> <msub> <mi>L</mi> <mn>12</mn> </msub> <mo>)</mo> <mo>&amp;times;</mo> <mi>N</mi> </mrow> </mfrac> <mo>(</mo> <msub> <mi>N</mi> <mn>2</mn> </msub> <mo>&amp;le;</mo> <mi>i</mi> <mo>&lt;</mo> <msub> <mi>N</mi> <mn>3</mn> </msub> <mo>)</mo> </mtd> </mtr> <mtr> <mtd> <mfrac> <mrow> <msub> <mi>L</mi> <mn>4</mn> </msub> <mo>-</mo> <msub> <mi>L</mi> <mn>3</mn> </msub> </mrow> <mrow> <msub> <mi>N</mi> <mn>4</mn> </msub> <mo>-</mo> <msub> <mi>N</mi> <mn>3</mn> </msub> </mrow> </mfrac> <mo>=</mo> <mfrac> <mrow> <mo>(</mo> <msub> <mi>L</mi> <mn>4</mn> </msub> <mo>-</mo> <msub> <mi>L</mi> <mn>3</mn> </msub> <mo>)</mo> <mo>&amp;times;</mo> <mi>L</mi> </mrow> <mrow> <mo>(</mo> <msub> <mi>L</mi> <mn>14</mn> </msub> <mo>-</mo> <msub> <mi>L</mi> <mn>13</mn> </msub> <mo>)</mo> <mo>&amp;times;</mo> <mi>N</mi> </mrow> </mfrac> <mo>(</mo> <msub> <mi>N</mi> <mn>3</mn> </msub> <mo>&amp;le;</mo> <mi>i</mi> <mo>&lt;</mo> <msub> <mi>N</mi> <mn>4</mn> </msub> <mo>)</mo> </mtd> </mtr> <mtr> <mtd> <mfrac> <mrow> <mi>L</mi> <mo>-</mo> <msub> <mi>L</mi> <mn>4</mn> </msub> </mrow> <mrow> <mi>N</mi> <mo>-</mo> <msub> <mi>N</mi> <mn>4</mn> </msub> </mrow> </mfrac> <mo>=</mo> <mfrac> <mrow> <mo>(</mo> <mi>L</mi> <mo>-</mo> <msub> <mi>L</mi> <mn>4</mn> </msub> <mo>)</mo> <mo>&amp;times;</mo> <mi>L</mi> </mrow> <mrow> <mo>(</mo> <mi>L</mi> <mo>-</mo> <msub> <mi>L</mi> <mn>14</mn> </msub> <mo>)</mo> <mo>&amp;times;</mo> <mi>N</mi> </mrow> </mfrac> <mo>(</mo> <msub> <mi>N</mi> <mn>4</mn> </msub> <mo>&amp;le;</mo> <mi>i</mi> <mo>&lt;</mo> <mi>N</mi> <mo>)</mo> </mtd> </mtr> </mtable> </mfenced> </mrow>
L in above formula11、L12、L13、L14The position L of each wheel belt of respectively equidistant algorithm demarcation1、L2、L3、L4For four features The physical location of point, N1、N2、N3、N4Numbered for scanning element.
5. position calibration method in rotary kiln infrared scanning temperature measurement system according to claim 4, it is characterised in that described Step 4) the scanning element spacing after correcting can calculate m scanning elements physical location i.e. point on rotary kiln of correspondence to Kiln hood length lm：
<mrow> <msub> <mi>l</mi> <mi>m</mi> </msub> <mo>=</mo> <munderover> <mi>&amp;Sigma;</mi> <mrow> <mi>i</mi> <mo>=</mo> <mn>0</mn> </mrow> <mi>m</mi> </munderover> <mi>&amp;Delta;</mi> <mi>i</mi> <mo>=</mo> <mfenced open = "{" close = ""> <mtable> <mtr> <mtd> <mfrac> <mrow> <msub> <mi>L</mi> <mn>1</mn> </msub> <mo>&amp;times;</mo> <mi>L</mi> </mrow> <mrow> <msub> <mi>L</mi> <mn>11</mn> </msub> <mo>&amp;times;</mo> <mi>N</mi> </mrow> </mfrac> <mo>&amp;times;</mo> <mi>m</mi> <mo>(</mo> <mn>0</mn> <mo>&lt;</mo> <mi>m</mi> <mo>&amp;le;</mo> <msub> <mi>N</mi> <mn>1</mn> </msub> <mo>)</mo> </mtd> </mtr> <mtr> <mtd> <msub> <mi>L</mi> <mn>1</mn> </msub> <mo>+</mo> <mfrac> <mrow> <mo>(</mo> <msub> <mi>L</mi> <mn>2</mn> </msub> <mo>-</mo> <msub> <mi>L</mi> <mn>1</mn> </msub> <mo>)</mo> <mo>&amp;times;</mo> <mi>L</mi> </mrow> <mrow> <mo>(</mo> <msub> <mi>L</mi> <mn>12</mn> </msub> <mo>-</mo> <msub> <mi>L</mi> <mn>11</mn> </msub> <mo>)</mo> <mo>&amp;times;</mo> <mi>N</mi> </mrow> </mfrac> <mo>&amp;times;</mo> <mo>(</mo> <mi>m</mi> <mo>-</mo> <msub> <mi>N</mi> <mn>1</mn> </msub> <mo>)</mo> <mo>(</mo> <msub> <mi>N</mi> <mn>1</mn> </msub> <mo>&lt;</mo> <mi>m</mi> <mo>&amp;le;</mo> <msub> <mi>N</mi> <mn>2</mn> </msub> <mo>)</mo> </mtd> </mtr> <mtr> <mtd> <msub> <mi>L</mi> <mn>2</mn> </msub> <mo>+</mo> <mfrac> <mrow> <mo>(</mo> <msub> <mi>L</mi> <mn>3</mn> </msub> <mo>-</mo> <msub> <mi>L</mi> <mn>2</mn> </msub> <mo>)</mo> <mo>&amp;times;</mo> <mi>L</mi> </mrow> <mrow> <mo>(</mo> <msub> <mi>L</mi> <mn>13</mn> </msub> <mo>-</mo> <msub> <mi>L</mi> <mn>12</mn> </msub> <mo>)</mo> <mo>&amp;times;</mo> <mi>N</mi> </mrow> </mfrac> <mo>&amp;times;</mo> <mo>(</mo> <mi>m</mi> <mo>-</mo> <msub> <mi>N</mi> <mn>2</mn> </msub> <mo>)</mo> <mo>(</mo> <msub> <mi>N</mi> <mn>2</mn> </msub> <mo>&lt;</mo> <mi>m</mi> <mo>&amp;le;</mo> <msub> <mi>N</mi> <mn>3</mn> </msub> <mo>)</mo> </mtd> </mtr> <mtr> <mtd> <msub> <mi>L</mi> <mn>3</mn> </msub> <mo>+</mo> <mfrac> <mrow> <mo>(</mo> <msub> <mi>L</mi> <mn>4</mn> </msub> <mo>-</mo> <msub> <mi>L</mi> <mn>3</mn> </msub> <mo>)</mo> <mo>&amp;times;</mo> <mi>L</mi> </mrow> <mrow> <mo>(</mo> <msub> <mi>L</mi> <mn>14</mn> </msub> <mo>-</mo> <msub> <mi>L</mi> <mn>13</mn> </msub> <mo>)</mo> <mo>&amp;times;</mo> <mi>N</mi> </mrow> </mfrac> <mo>&amp;times;</mo> <mo>(</mo> <mi>m</mi> <mo>-</mo> <msub> <mi>N</mi> <mn>3</mn> </msub> <mo>)</mo> <mo>(</mo> <msub> <mi>N</mi> <mn>3</mn> </msub> <mo>&lt;</mo> <mi>m</mi> <mo>&amp;le;</mo> <msub> <mi>N</mi> <mn>4</mn> </msub> <mo>)</mo> </mtd> </mtr> <mtr> <mtd> <msub> <mi>L</mi> <mn>4</mn> </msub> <mo>+</mo> <mfrac> <mrow> <mo>(</mo> <mi>L</mi> <mo>-</mo> <msub> <mi>L</mi> <mn>4</mn> </msub> <mo>)</mo> <mo>&amp;times;</mo> <mi>L</mi> </mrow> <mrow> <mo>(</mo> <mi>L</mi> <mo>-</mo> <msub> <mi>L</mi> <mn>14</mn> </msub> <mo>)</mo> <mo>&amp;times;</mo> <mi>N</mi> </mrow> </mfrac> <mo>&amp;times;</mo> <mo>(</mo> <mi>m</mi> <mo>-</mo> <msub> <mi>N</mi> <mn>4</mn> </msub> <mo>)</mo> <mo>(</mo> <msub> <mi>N</mi> <mn>4</mn> </msub> <mo>&lt;</mo> <mi>m</mi> <mo>&amp;le;</mo> <mi>N</mi> <mo>)</mo> </mtd> </mtr> </mtable> </mfenced> </mrow>
L in above formula1、L2、L3、L4For the physical location of four characteristic points of rotary kiln, L11、L12、L13、L14Respectively equidistantly calculate The position of each wheel belt of method demarcation, Δ d is adjacent scanning element spacing, and N is number of scan points, and L is long for the kiln of rotary kiln, N1、N2、N3、 N4Numbered for scanning element.
CN201710341038.9A 2017-05-16 2017-05-16 Position calibration method in a kind of rotary kiln infrared scanning temperature measurement system Pending CN107271045A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109539780A (en) * 2018-11-29 2019-03-29 重庆邮电大学 Based on each thermometric independent positioning method of rotary kiln surface angularly scanned

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2073584U (en) * 1990-03-09 1991-03-20 国家建筑材料工业局合肥水泥研究设计院 Intelligent infrared temp. monitoring system for kiln carcass
CN103557965A (en) * 2013-11-25 2014-02-05 北京汉能清源科技有限公司 Method for measuring temperature of rotary cement kiln and method and device for online detection of temperature field of rotary cement kiln
CN204731962U (en) * 2015-06-04 2015-10-28 重庆邮电大学 A kind of wireless data transmission device being applicable to rotary kiln surface infrared measurement of temperature

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2073584U (en) * 1990-03-09 1991-03-20 国家建筑材料工业局合肥水泥研究设计院 Intelligent infrared temp. monitoring system for kiln carcass
CN103557965A (en) * 2013-11-25 2014-02-05 北京汉能清源科技有限公司 Method for measuring temperature of rotary cement kiln and method and device for online detection of temperature field of rotary cement kiln
CN204731962U (en) * 2015-06-04 2015-10-28 重庆邮电大学 A kind of wireless data transmission device being applicable to rotary kiln surface infrared measurement of temperature

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SHAOSHENG DAI ET AL.: "Research on position calibration method in infrared scanning temperature measurement system of rotary kiln", 《INFRARED PHYSICS & TECHNOLOGY》 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109539780A (en) * 2018-11-29 2019-03-29 重庆邮电大学 Based on each thermometric independent positioning method of rotary kiln surface angularly scanned

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