CN109164237A - The online ash content of coal analyzer compensated can be changed to belt speed, moisture - Google Patents
The online ash content of coal analyzer compensated can be changed to belt speed, moisture Download PDFInfo
- Publication number
- CN109164237A CN109164237A CN201811075451.6A CN201811075451A CN109164237A CN 109164237 A CN109164237 A CN 109164237A CN 201811075451 A CN201811075451 A CN 201811075451A CN 109164237 A CN109164237 A CN 109164237A
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- Prior art keywords
- belt
- pressure sensor
- moisture
- measurement
- belt speed
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/22—Fuels, explosives
- G01N33/222—Solid fuels, e.g. coal
Abstract
The online ash content of coal analyzer compensated can be changed to belt speed, moisture the present invention provides a kind of, the analyzer includes: the top that laser source and camera are fixed on material, the laser of a wordline shape is emitted by laser source, impinge upon the upper surface of material, form one of bright line, camera-shot analyzes the sectional area of material at measurement and control instrument, measurement and control instrument is transferred to after digital photograph；Pressure sensor is installed in the lower section of upper belt, and measurement and control instrument analyzes the load of upper belt according to the signal of pressure sensor；Belt speed sensor detects the belt speed of service；Infrared moisture meter detects the moisture of material；Measurement and control instrument calculates the ash value of material according to information above by formula in turn.The analyzer does not use the radioactive source with ionising radiation, has no adverse effects to environment, and security risk is not present to operator.
Description
Technical field
The present invention relates to a kind of analyzers that on-line analysis can be carried out for the ash content of coal, and in particulaing relate to one kind can needle
The laser assisted detection analysis instrument of on-line analysis is carried out to the ash content of coal.
Background technique
Ash content of coal is the important parameter for measuring Coal Quality, and the calorific value of coal can be calculated by ash content, because
This ash content of coal online measuring technique is the important technology of coal on-line checking.Existing ash content of coal on-line checking generally uses
Radiometric technique, such as: low-energy gamma ray anti-scattering method, high-energy gamma ray pair effect, natural gamma ray are surveyed
Amount method, dual energy gamma ray transmissive method, neutron activation prompt fission gammas analytic approach, Reflection X-ray method.
But all there is ionising radiation in these methods, in measurement process, can affect to environment, while give operator
Member brings security risk.
Summary of the invention
For defect in the presence of the ash content detection of current existing online coal, the present invention propose it is a kind of it is radiationless,
It is safe from harm to working environment, and the online ash content of coal analyzer compensated can be changed to belt speed, moisture.
The specific technical solution of the present invention is:
Laser source (2) and camera (4) pass through bracket A(1 respectively) and bracket B(3) it is fixed on upper belt (10) and material
(11) top.Laser source (2) is emitted the laser of a wordline shape, impinges upon the upper surface of material (11), forms one of bright line, is shot
As head (4) shooting is at being transferred to measurement and control instrument (8) after digital photograph.Measurement and control instrument (8) number according to captured by camera (4) shines
Piece identifies the position of bright line, the cross-sectional shape of available material (11), and then extrapolates the transversal of material (11)
Area S.
Pressure sensor A(5) and pressure sensor B(6) lower section of upper belt (10) is fixed on by fixed frame (7),
Pressure sensor A(5) and pressure sensor B(6) on be fixed with epithelium belt roller (9), epithelium belt roller (9) supports upper belt
(10), can be by pressure sensor A(5) and pressure sensor B(6) no object on the signal that exports in real time and upper belt (10)
The load W of upper belt (10) is learnt in the comparison of output signal when expecting (11).
Specifically have:
Wherein: WtAFor the pressure sensor A(5) pressure suffered when upper belt (10) has material (11), W0AFor pressure biography
Sensor A(5) pressure suffered at material (11) no on upper belt (10), WtBIt is pressure sensor B(6) in upper belt
(10) suffered pressure, W0 when having material (11)BIt is pressure sensor B(6) at material (11) no on upper belt (10)
Suffered pressure.
Wherein WtAAnd WtBIt is that during normal production, upper belt (10) has real-time measurement values when material (11)；W0AAnd W0BIt is
Analyzer allows upper belt (10) to measure to obtain when dallying before normally coming into operation.
Belt speed sensor (21) is installed in the lower section of upper belt (10), the idler wheel and upper belt of belt speed sensor (21)
(10) be in close contact, upper belt (10) move when can accordingly drive the idler wheel of belt speed sensor (21) rotate, the revolving speed of idler wheel and
The movement speed of belt is linear, and belt speed sensor (21) can detecte out belt by detecting the revolving speed of idler wheel
Speed of service V.
Moisture Meter (32) passes through bracket C(31) it is fixed on the top of upper belt (10) and material (11), Moisture Meter (32)
It can detecte out the moisture value P of material (11).
When scene during normal production, the material on belt successively passes through bracket C(31), bracket A(1), bracket B(3) position
Set, and bracket C(31) position be closely located to as far as possible with bright line of being broken forth on material (11).
Laser source (2), camera (4), pressure sensor A(5), pressure sensor B(6), belt speed sensor (21), moisture
Instrument (32) is coupled by cable with measurement and control instrument (8) respectively；Measurement and control instrument (8) is respectively laser source (2), camera by feed cable
(4), pressure sensor A(5), pressure sensor B(6), belt speed sensor (21), Moisture Meter (32) provide working power；Camera shooting
Head (4), pressure sensor A(5), pressure sensor B(6), belt speed sensor (21), Moisture Meter (32) pass through signal cable respectively
Respective output signal is transferred to measurement and control instrument (8).
Measurement and control instrument (8) according to the cross-sectional area S of material (11), the load W of upper belt (10), belt speed of service V, object
The moisture value P for expecting (11), the ash value H of material is calculated according to following formula:
In formula: E1, E2, E3, E4, E5, E6, D1, D2, D3, D4, C are constant term, the calibration process before instrument comes into operation
In, a large amount of data are established by sampling control, are obtained by conventional nonlinear regression and fitting.
It is required according to the technique at scene and the practical operation situation of instrument, measurement and control instrument (8) can set every minor tick and consolidate
It fixes time or data processing or calculated result output is carried out according to the state feature of material on belt, this is the routine in the field
Processing mode.
The utility model has the advantages that
Analyzer structure of the present invention is simple, is easily installed implementation, does not use penetrating for ionising radiation in the analysis process
Line source has no adverse effects to environment, and security risk is not present.And in the analysis process to the belt speed and object for influencing analysis precision
The variation of material moisture is compensated, so that analysis precision is higher.
Detailed description of the invention
Fig. 1: the main view of analyzer of the present invention
Fig. 2: the side view of analyzer of the present invention
In figure: 1 bracket A, 2 laser sources, 3 bracket B, 4 cameras, 5 pressure sensor A, 6 pressure sensor B, 7 is fixed
Frame, 8 measurement and control instruments, 9 epithelium belt rollers, 10 upper belts, 11 materials, 12 belt holders, 21 belt speed sensors, 31 bracket C, 32
Moisture Meter.
Specific embodiment
The structure for being described with reference to the accompanying drawings laser analyzer constitutes and application method:
It is as shown in Figure 1 and Figure 2:
Belt holder is equipped with bracket A(1 on (12)) and bracket B(3), bracket A(1) on be fixed with laser source (2), bracket B(3) on
It is fixed with camera (4)；
It is equipped on belt holder (12) fixed frame (7), fixed frame is fixed with pressure sensor A(5 on (7)) and pressure sensor B
(6), pressure sensor A(5) and pressure sensor B(6) on be fixed with epithelium belt roller (9)；
In the lower section of upper belt (10), belt speed sensor (21) are equipped with by belt holder (12)；
Belt holder is equipped with bracket C(31 on (12)), bracket C(31) on be fixed with Moisture Meter (32)；
Laser source (2), camera (4), pressure sensor A(5), pressure sensor B(6), belt speed sensor (21), Moisture Meter
(32) coupled respectively by cable with measurement and control instrument (8)；
Measurement and control instrument (8) is respectively laser source (2), camera (4), pressure sensor A(5 by feed cable), pressure sensor B
(6), belt speed sensor (21), Moisture Meter (32) provide working power；
Camera (4), pressure sensor A(5), pressure sensor B(6), belt speed sensor (21), the signal of Moisture Meter (32) it is logical
It crosses signal cable and is transferred to measurement and control instrument (8).
Laser source (2) uses a wordline laser device；Moisture Meter (32) uses infrared moisture meter.
The modules such as Switching Power Supply, signal-processing board, translation interface and tablet computer are installed inside measurement and control instrument (8), it can
To camera (4), the pressure sensor A(5 received), pressure sensor B(6), belt speed sensor (21), Moisture Meter (32)
Signal identified, handled, show result after tablet computer is calculated.
When analyzer is started to work, laser source (2) is emitted the laser of a wordline shape, impinges upon the upper surface of material (11),
One of bright line is formed, by camera (4) shooting at being transferred to measurement and control instrument (8) after digital photograph；
Measurement and control instrument (8) digital photograph according to captured by camera (4), identifies the position of bright line, available material
(11) cross-sectional shape, and then extrapolate the cross-sectional area S of material (11).
Measurement and control instrument (8) is according to pressure sensor A(5), pressure sensor B(6) transmission come signal can extrapolate epithelium
The load W of band (10),
Wherein: WtAFor the pressure sensor A(5) pressure suffered when upper belt (10) has material (11), W0AFor pressure biography
Sensor A(5) pressure suffered at material (11) no on upper belt (10), WtBIt is pressure sensor B(6) in upper belt
(10) suffered pressure, W0 when having material (11)BIt is pressure sensor B(6) at material (11) no on upper belt (10)
Suffered pressure.
Wherein WtAAnd WtBIt is that during normal production, upper belt (10) has real-time measurement values when material (11)；W0AAnd W0BIt is
Analyzer allows upper belt (10) to measure to obtain when dallying before normally coming into operation.
Belt speed sensor (21) detects the speed of service V of belt, is transferred to measurement and control instrument (8) by signal cable；
Moisture Meter (32) detects the moisture value P of material (11), is transferred to measurement and control instrument (8) by signal cable.
Measurement and control instrument (8) according to the cross-sectional area S of material (11), the load W of upper belt (10), belt speed of service V, object
The moisture value P for expecting (11), the ash value H of material is calculated according to following formula:
In formula: E1, E2, E3, E4, E5, E6, D1, D2, D3, D4, C are constant term, the calibration process before instrument comes into operation
In, a large amount of data are established by sampling control, are obtained by conventional nonlinear regression and fitting.
Application example:
Laser source using Changchun ray machine technical grade a wordline laser device, be emitted as green light；
Camera uses technical grade high speed camera, and frame per second 120FPS matches Varifocal zoom lens；
Moisture Meter uses the homemade infrared moisture meter of Dandong Dongfang Measurement & Control Technology Co., Ltd.；
Measurement and control instrument is Dandong Dongfang Measurement & Control Technology Co., Ltd.'s self-control.
Claims (6)
1. the online ash content of coal analyzer compensated can be changed to belt speed, moisture, it is characterised in that:
Belt holder is equipped with bracket A(1 on (12)) and bracket B(3), bracket A(1) on be fixed with laser source (2), bracket B(3) on
It is fixed with camera (4)；It is equipped on belt holder (12) fixed frame (7), fixed frame is fixed with pressure sensor A(5 on (7)) and
Pressure sensor B(6), pressure sensor A(5) and pressure sensor B(6) on be fixed with epithelium belt roller (9)；In upper belt (10)
Lower section, belt speed sensor (21) are equipped with by belt holder (12)；Belt holder is equipped with bracket C(31 on (12)), bracket C
(31) Moisture Meter (32) are fixed on；
When scene during normal production, the material on belt successively passes through bracket C(31), bracket A(1), bracket B(3) position；
Laser source (2), camera (4), pressure sensor A(5), pressure sensor B(6), belt speed sensor (21), Moisture Meter
(32) coupled respectively by cable with measurement and control instrument (8)；Measurement and control instrument (8) is respectively laser source (2), camera by feed cable
(4), pressure sensor A(5), pressure sensor B(6), belt speed sensor (21), Moisture Meter (32) provide working power；Camera shooting
Head (4), pressure sensor A(5), pressure sensor B(6), belt speed sensor (21), the signal of Moisture Meter (32) it is electric by signal
Cable is transferred to measurement and control instrument (8).
2. based on described in claim 1 the online ash content of coal analyzer compensated, feature can be changed to belt speed, moisture
Be: the laser source (2) uses a wordline laser device.
3. based on described in claim 1 the online ash content of coal analyzer compensated, feature can be changed to belt speed, moisture
Be: the Moisture Meter (32) uses infrared moisture meter.
4. based on described in claim 1 the online ash content of coal analyzer compensated, feature can be changed to belt speed, moisture
It is:
Measurement and control instrument (8) according to the cross-sectional area S of material (11), the load W of upper belt (10), belt speed of service V, material
(11) the ash value H of material is calculated according to following formula by moisture value P:
In formula: E1, E2, E3, E4, E5, E6, D1, D2, D3, D4, C are constant term, the calibration process before instrument comes into operation
In, a large amount of data are established by sampling control, are obtained by conventional nonlinear regression and fitting.
5. based on as claimed in claim 4 the online ash content of coal analyzer compensated, feature can be changed to belt speed, moisture
It is:
The cross-sectional area S of the material (11) is when analyzer is started to work, and laser source (2) is emitted swashing for a wordline shape
Light, impinges upon the upper surface of material (11), forms one of bright line, by camera (4) shooting at being transferred to measurement and control instrument after digital photograph
(8)；Measurement and control instrument (8) digital photograph according to captured by camera (4), identifies the position of bright line, obtains material (11)
Cross-sectional shape, extrapolate the cross-sectional area S of material (11).
6. based on as claimed in claim 4 the online ash content of coal analyzer compensated, feature can be changed to belt speed, moisture
It is:
The load W of the upper belt (10) is measurement and control instrument (8) according to pressure sensor A(5), pressure sensor B(6) transmission
The signal come extrapolates the load W of upper belt (10):
Wherein: WtAFor the pressure sensor A(5) pressure suffered when upper belt (10) has material (11), W0AFor pressure sensing
Device A(5) pressure suffered at material (11) no on upper belt (10), WtBIt is pressure sensor B(6) in upper belt
(10) suffered pressure, W0 when having material (11)BIt is pressure sensor B(6) at material (11) no on upper belt (10)
Suffered pressure；
Wherein WtAAnd WtBIt is that during normal production, upper belt (10) has real-time measurement values when material (11)；W0AAnd W0BIt is analysis
Instrument allows upper belt (10) to measure to obtain when dallying before normally coming into operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811075451.6A CN109164237A (en) | 2018-09-14 | 2018-09-14 | The online ash content of coal analyzer compensated can be changed to belt speed, moisture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811075451.6A CN109164237A (en) | 2018-09-14 | 2018-09-14 | The online ash content of coal analyzer compensated can be changed to belt speed, moisture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109164237A true CN109164237A (en) | 2019-01-08 |
Family
ID=64879546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811075451.6A Pending CN109164237A (en) | 2018-09-14 | 2018-09-14 | The online ash content of coal analyzer compensated can be changed to belt speed, moisture |
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|---|---|---|---|---|
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| CN101349661A (en) * | 2008-09-17 | 2009-01-21 | 丹东东方测控技术有限公司 | Method for on-line detecting coal ashes on belt |
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| CN102749433A (en) * | 2012-07-17 | 2012-10-24 | 中国神华能源股份有限公司 | Coal ash content detecting method |
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| CN204613057U (en) * | 2015-04-29 | 2015-09-02 | 北京微点至信科技有限公司 | Ash content of coal on-line measurement system |
| CN205246369U (en) * | 2015-11-05 | 2016-05-18 | 山东信华电力科技有限公司 | Online coal quality detection and analysis system of laser |
| CN106680019A (en) * | 2015-11-05 | 2017-05-17 | 山东信华电力科技有限公司 | On-line coal quality laser detection and analysis system |
| CN209356487U (en) * | 2018-09-14 | 2019-09-06 | 丹东东方测控技术股份有限公司 | The online ash content of coal analyzer compensated can be changed to belt speed, moisture |
-
2018
- 2018-09-14 CN CN201811075451.6A patent/CN109164237A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201063033Y (en) * | 2007-06-19 | 2008-05-21 | 尤荣 | Continuous on-line detecting device for measuring thermal value of coaly |
| CN101349661A (en) * | 2008-09-17 | 2009-01-21 | 丹东东方测控技术有限公司 | Method for on-line detecting coal ashes on belt |
| CN102313722A (en) * | 2011-09-05 | 2012-01-11 | 华南理工大学 | Proximate analyzing method for coal quality base on multivariate linear regression |
| CN102749433A (en) * | 2012-07-17 | 2012-10-24 | 中国神华能源股份有限公司 | Coal ash content detecting method |
| CN104198503A (en) * | 2014-08-19 | 2014-12-10 | 开封市测控技术有限公司 | Online coal ash content measurement system and method based on natural gamma rays |
| CN204613057U (en) * | 2015-04-29 | 2015-09-02 | 北京微点至信科技有限公司 | Ash content of coal on-line measurement system |
| CN205246369U (en) * | 2015-11-05 | 2016-05-18 | 山东信华电力科技有限公司 | Online coal quality detection and analysis system of laser |
| CN106680019A (en) * | 2015-11-05 | 2017-05-17 | 山东信华电力科技有限公司 | On-line coal quality laser detection and analysis system |
| CN209356487U (en) * | 2018-09-14 | 2019-09-06 | 丹东东方测控技术股份有限公司 | The online ash content of coal analyzer compensated can be changed to belt speed, moisture |
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