CN109164236A - The ash content of coal analysis system compensated can be changed to belt speed, moisture - Google Patents
The ash content of coal analysis system compensated can be changed to belt speed, moisture Download PDFInfo
- Publication number
- CN109164236A CN109164236A CN201811075431.9A CN201811075431A CN109164236A CN 109164236 A CN109164236 A CN 109164236A CN 201811075431 A CN201811075431 A CN 201811075431A CN 109164236 A CN109164236 A CN 109164236A
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- Prior art keywords
- belt
- pressure sensor
- measurement
- moisture
- analysis system
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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 ash content of coal analysis system compensated can be changed to belt speed, moisture the present invention provides a kind of, the analysis system 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；Microwave moisture instrument detects the moisture of material；Measurement and control instrument calculates the ash value of material according to information above by formula in turn.The analysis system 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 analysis systems that can be analyzed for the ash content of coal on conveying belt, in particular relate to one
The laser assisted testing and analysis system that kind can be analyzed for the ash content of coal on conveying belt.
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 ash content of coal analysis system 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.
Microwave detector (32) is fixed on the top of upper belt (10) and material (11), microwave hair by C-shaped frame (31)
Generating apparatus (33) is fixed on the centre of upper belt (10) and lower belt, microwave detector (32) and microwave by C-shaped frame (31)
Generating device (33), which constitutes conventional microwave moisture instrument, can detecte out the moisture value P of material (11).
When scene during normal production, the material on belt successively passes through C-shaped frame (31), bracket A(1), bracket B(3) position
It sets, and the position of C-shaped frame (31) is closely located to bright line of being broken forth on material (11) as far as possible.
Laser source (2), camera (4), pressure sensor A(5), pressure sensor B(6), belt speed sensor (21), microwave
Detector (32), microwave generating apparatus (33) are coupled by cable with measurement and control instrument (8) respectively；Measurement and control instrument (8) passes through feed cable
Respectively laser source (2), camera (4), pressure sensor A(5), pressure sensor B(6), belt speed sensor (21), microwave visit
Survey device (32), microwave generating apparatus (33) provides working power；Camera (4), pressure sensor A(5), pressure sensor B
(6), respective output signal is transferred to measurement and control instrument by signal cable respectively by belt speed sensor (21), microwave detector (32)
(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, D1, D2, D3, D4, C are constant term, in the calibration process before instrument comes into operation, are led to
A large amount of data are established in over 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
Analysis system structure of the present invention is simple, is easily installed implementation, does not use ionising radiation in the analysis process
Radiographic source has no adverse effects to environment, and security risk is not present.And in the analysis process to influence analysis precision belt speed and
The variation of material moisture is compensated, so that analysis precision is higher.
Detailed description of the invention
Fig. 1: the main view of analysis system of the present invention
Fig. 2: the side view of analysis system 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 C-shaped frames, 32
Microwave detector, 33 microwave generating apparatus.
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)；
It is equipped on belt holder (12) C-shaped frame (31), microwave detector (32), microwave generating apparatus is fixed in C-shaped frame (31)
(33), wherein microwave detector (32) is fixed on the top of upper belt (10) and material (11), microwave generating apparatus (33) quilt
It is fixed on the centre of upper belt (10) and lower belt；
Laser source (2), camera (4), pressure sensor A(5), pressure sensor B(6), belt speed sensor (21), microwave sounding
Device (32), microwave generating apparatus (33) are coupled by cable with measurement and control instrument (8) respectively；
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), microwave detector (32), microwave generating apparatus (33) provide working power；
Camera (4), pressure sensor A(5), pressure sensor B(6), belt speed sensor (21), microwave detector (32) letter
Number measurement and control instrument (8) are transferred to by signal cable.
Laser source (2) uses a wordline laser device.
Microwave detector (32) and microwave generating apparatus (33), which constitute conventional microwave moisture instrument, can detecte out material
(11) moisture value P.
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), microwave detector
(32) signal is identified, is handled, and shows result after tablet computer is calculated.
When analysis system is started to work, laser source (2) is emitted the laser of a wordline shape, impinges upon the upper table of material (11)
Face forms one of bright line, 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) 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；
Belt speed sensor (21) detects the speed of service V of belt, is transferred to measurement and control instrument (8) by signal cable.
Microwave detector (32) and microwave generating apparatus (33), which constitute conventional microwave moisture instrument, can detecte out material
(11) moisture value P 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, D1, D2, D3, D4, C are constant term, in the calibration process before instrument comes into operation, are led to
A large amount of data are established in over 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；
Microwave moisture instrument uses the homemade microwave moisture instrument 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 ash content of coal analysis system 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)；C-shaped frame (31), bracket C are installed on belt holder (12)
(31) microwave detector (32) and microwave generating apparatus (33) are fixed on；Microwave detector (32) is consolidated by C-shaped frame (31)
It is scheduled on the top of upper belt (10) and material (11), microwave generating apparatus (33) is fixed on upper belt by C-shaped frame (31)
(10) and the centre of lower belt；
When scene during normal production, the material on belt successively passes through C-shaped frame (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), microwave sounding
Device (32), microwave generating apparatus (33) are coupled by cable with measurement and control instrument (8) respectively；Measurement and control instrument (8) is distinguished by feed cable
For laser source (2), camera (4), pressure sensor A(5), pressure sensor B(6), belt speed sensor (21), microwave detector
(32), microwave generating apparatus (33) provides working power；Camera (4), pressure sensor A(5), pressure sensor B(6), band
Respective output signal is transferred to measurement and control instrument (8) by signal cable respectively by fast sensor (21), microwave generating apparatus (33).
2. can change the ash content of coal analysis system compensated to belt speed, moisture based on described in claim 1, feature exists
In: the laser source (2) uses a wordline laser device.
3. can change the ash content of coal analysis system compensated to belt speed, moisture based on described in claim 1, feature exists
In: the microwave detector (32) and microwave generating apparatus (33) constitute conventional microwave moisture instrument.
4. can change the ash content of coal analysis system compensated to belt speed, moisture based on described in claim 1, feature exists
In:
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, D1, D2, D3, D4, C are constant term, in the calibration process before instrument comes into operation, are led to
A large amount of data are established in over sampling control, are obtained by conventional nonlinear regression and fitting.
5. can change the ash content of coal analysis system compensated to belt speed, moisture based on as claimed in claim 4, feature exists
In:
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. can change the ash content of coal analysis system compensated to belt speed, moisture based on as claimed in claim 4, feature exists
In:
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 |
|---|---|---|---|
| CN201811075431.9A CN109164236A (en) | 2018-09-14 | 2018-09-14 | The ash content of coal analysis system compensated can be changed to belt speed, moisture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811075431.9A CN109164236A (en) | 2018-09-14 | 2018-09-14 | The ash content of coal analysis system compensated can be changed to belt speed, moisture |
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| Publication Number | Publication Date |
|---|---|
| CN109164236A true CN109164236A (en) | 2019-01-08 |
Family
ID=64879541
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| 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 |
| CN209356486U (en) * | 2018-09-14 | 2019-09-06 | 丹东东方测控技术股份有限公司 | The ash content of coal analysis system compensated can be changed to belt speed, moisture |
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2018
- 2018-09-14 CN CN201811075431.9A patent/CN109164236A/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 |
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| 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 |
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