CN106290779B - Feeder formula coal elemental composition on-line analysis device and analysis method - Google Patents
Feeder formula coal elemental composition on-line analysis device and analysis method Download PDFInfo
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- CN106290779B CN106290779B CN201610812907.7A CN201610812907A CN106290779B CN 106290779 B CN106290779 B CN 106290779B CN 201610812907 A CN201610812907 A CN 201610812907A CN 106290779 B CN106290779 B CN 106290779B
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- 239000003245 coal Substances 0.000 title claims abstract description 83
- 238000004458 analytical method Methods 0.000 title claims abstract description 23
- 239000000203 mixture Substances 0.000 title claims description 10
- 238000000034 method Methods 0.000 claims abstract description 11
- 238000002485 combustion reaction Methods 0.000 claims abstract description 4
- 238000001228 spectrum Methods 0.000 claims description 37
- 238000004519 manufacturing process Methods 0.000 claims description 36
- 238000012545 processing Methods 0.000 claims description 24
- 238000001514 detection method Methods 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 11
- 238000004891 communication Methods 0.000 claims description 6
- 239000004698 Polyethylene Substances 0.000 claims description 5
- 230000003321 amplification Effects 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 230000005251 gamma ray Effects 0.000 claims description 5
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 238000012937 correction Methods 0.000 claims description 4
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 3
- 239000004606 Fillers/Extenders Substances 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 3
- 229910052796 boron Inorganic materials 0.000 claims description 3
- -1 polyethylene Polymers 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 2
- 239000005864 Sulphur Substances 0.000 claims description 2
- 230000001276 controlling effect Effects 0.000 claims description 2
- 238000007599 discharging Methods 0.000 claims description 2
- 229910052739 hydrogen Inorganic materials 0.000 claims description 2
- 229910052757 nitrogen Inorganic materials 0.000 claims description 2
- 229910052760 oxygen Inorganic materials 0.000 claims description 2
- 229910052698 phosphorus Inorganic materials 0.000 claims description 2
- 230000001681 protective effect Effects 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 229910052717 sulfur Inorganic materials 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 230000002708 enhancing effect Effects 0.000 claims 1
- 238000013461 design Methods 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 210000001367 artery Anatomy 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000000611 regression analysis Methods 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
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
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- Life Sciences & Earth Sciences (AREA)
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- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
Abstract
The present invention be directed to a kind of novel coal quality on-line measuring devices and analysis method of feeder design, can be with coal essential element content on on-line checking feeder and Industrial Analysis index.By installing pulsed neutron method coal quality in-line analyzer on feeder, it is truly realized the on-line checking of burner outlet coal quality, the accuracy of data significantly larger than predicts coal data, to instruct the adjustment of boiler combustion parameter to provide most accurate direct basis, improve boiler efficiency 0.1%, meanwhile improving the safety of boiler.
Description
Technical field
The present invention is feeder formula coal elemental composition on-line analysis device, particular for a kind of novel coal quality of feeder design
On-line measuring device, can be with coal essential element content on on-line checking feeder and Industrial Analysis index.
Background technology
Existing coal quality online detection instrument is all mounted on the belt feeder of coal transporting trestle, D-T accelerators for neutron production and gal code
Detector is all located at below belt feeder, can detect the ingredient into factory or as-fired coal matter in real time, but the coal data detected
It all mixes after entering run coal bin, in addition, the coal into run coal bin burns again after generally storing a period of time, in this way
It is just certainly existed according to the coal data of run coal bin coal seam distributed model and the outlet of feeder data on flows prediction boiler-burner
Large error is not used to instruct the adjustment of boiler combustion parameter.
Existing coal quality on-line measuring device generally uses peak area method, regression analysis, least square in terms of spectrum unscrambling
Method scheduling algorithm, these types of algorithm common problem are that spectrum unscrambling precision is low, directly result in the analytical error of coal industry ingredient
Greatly, it cannot be satisfied the actual demand of industry spot.
Invention content
The purpose of the present invention is to solve the above problems, a kind of novel coal quality designed particular for feeder is examined online
Device and analysis method are surveyed, it can be with coal essential element content on on-line checking feeder and Industrial Analysis index.
The main technical schemes of the present invention：Feeder formula coal elemental composition on-line analysis device, it is characterised in that it includes giving
Coal measures system, detecting system and control system；The coal supply system includes feeder, material blanking tube, U-shaped belt lace, reshaper successively
And discharge nozzle；The detecting system includes microwave receiver, microwave emitter and protection body successively；Top is set in the protection body
There are D-T accelerators for neutron production and BGO detectors, D-T accelerators for neutron production and BGO detectors to be placed in lead；The control system packet
Include digital control accelerator for neutron production unit, spectrum acquisition and control unit, microwave data central processing unit, computer digital animation
Unit and display unit；The microwave emitter connects microwave data central processing unit, the number control with microwave receiver
Accelerator for neutron production unit processed connects D-T accelerators for neutron production, and the spectrum acquisition and control unit connect BGO detectors, the calculating
The spectrum unscrambling processing and coal data of machine data processing unit and display unit for spectrum signal are calculated and are shown.
Usually, the D-T accelerators for neutron production are pulse D-T accelerators for neutron production, and the period for controlling pulse is 200us, is accounted for
Empty ratio 1:1.
The thermostatic control of the BGO detectors uses the high accuracy number chip temperature LM92 of I2C buses for sensor,
It is 40 ± 0.5 DEG C to control BGO temperature.
The U6 components of the temperature control system are LM92 bus temperature sensor chips, BGO detector cavity medium temperature degree
Data are extended transmission distance by U5 bus extender chips reaches 50 meters, clock arteries and veins of the clock pulse signal from U5 of U6
Punching, I/O port P1.1 of the clock signal from processor of single chip computer of U5, temperature signal is exported from the SDA of U6 enters U5 by signal
SDA mouths, then enter by the LDA mouths of U5 LDA mouths of U4, finally by the SDA of U4 mouths into the P1.1 mouths of processor of single chip computer,
R5 and R6 is the pull-up resistor of the SDA and SCL of U6, enhances the high level voltage of SDA and SCL；The temperature detected in real time with to
The difference of constant temperature degree calculates temperature regulated quantity data by PID blurring software algorithms, which passes through processor of single chip computer
The P2.1 mouthfuls of DIN digital quantities input ports for being output to U1, U1 are 12 high-precision analog-digital chips, and the VoutA of U1 is by integrated
The control terminal that temperature control power supply is inputted after amplifier U2 amplifications, controls the output voltage of temperature control power supply, the output voltage of temperature control power supply connects
Enter heater.
The protection body is gate mobility framework structure, and protective materials includes lead, polyethylene and Boron-containing-PE.
The protection body bottom is equipped with idler wheel.
The analysis method for additionally providing the analytical equipment of the present invention, it is characterised in that coal is fallen from the material blanking tube of feeder
To the U-shaped belt lace of feeder, after reshaper is handled enter microwave receiver and microwave emitter, microwave detection signals into
Enter microwave data central processing unit, coal goes successively to protection body, by above coal D-T accelerators for neutron production and
BGO detectors enter discharge nozzle after the completion of detection, then enter boiler-burner by coal pulverizer；Digital control neutron occurs
Device unit controls the operation of D-T accelerators for neutron production, and spectrum acquisition and control unit acquire the spectrum signal of BGO detectors and detected to BGO
Device carries out the spectrum unscrambling processing and coal data of thermostatic control, computer digital animation unit and display unit for spectrum signal and calculates
And display.
Feeder formula coal elemental composition on-line analysis device of the present invention, the D-T accelerators for neutron production and BGO detectors of analyzer are all
Positioned at the top of feeder, since the path of feeder to burner outlet is short, data are analyzed substantially without hysteresis quality, therefore true
The real-time detection for just realizing as-fired coal matter, improves the accuracy of burner outlet coal data, significantly more efficient can adjust
Whole boiler operating parameter can improve boiler efficiency, can improve the safety of boiler operatiopn, effectively avoid non-programmed halt,
The accidents such as burner hearth coking and slagging.The spectrum unscrambling algorithm based on Monte Carlo library-least square method of exploitation passes through practical proof,
Spectrum unscrambling precision is better than the prior art, can meet the actual demand of industry spot.
The present invention is truly realized burner outlet by installing pulsed neutron method coal quality in-line analyzer on feeder
The accuracy of the on-line checking of coal quality, data significantly larger than predicts coal data, to instruct the adjustment of boiler combustion parameter to provide
Most accurate direct basis improves boiler efficiency 0.1%, meanwhile, improve the safety of boiler.
Description of the drawings
Fig. 1 is the structural schematic diagram of analytical equipment of the embodiment of the present invention.
Fig. 2 is the detector temperature control system circuit diagram in embodiment.
In figure, 1- feeders；2-U type belt laces；3- coals；4- reshapers；5- microwave receivers；6- microwave emitters；
7- discharge nozzles；8- material blanking tubes；9-D-T accelerators for neutron production；10-BGO detectors；11- leads；12- protection bodies；13- display units；
14- computer digital animation units；The acquisition of 15- spectrums and control unit；The digital control accelerator for neutron production units of 16-；17- microwave numbers
According to central processing unit（17）.
Specific implementation mode
The present invention is further illustrated with example below in conjunction with the accompanying drawings.
Embodiment
Feeder formula coal elemental composition on-line analysis device includes mainly coal supply system, detecting system and control referring to attached drawing 1
System；The coal supply system includes feeder successively（1）, material blanking tube（8）, U-shaped belt lace（2）, reshaper（4）And discharge nozzle
（7）；The detecting system includes microwave receiver successively（5）, microwave emitter（6）And protection body（12）；The protection body
（12）Interior top is equipped with D-T accelerators for neutron production（9）With BGO detectors（10）, D-T accelerators for neutron production（9）With BGO detectors（10）
It is placed in lead（11）In；The control system includes digital control accelerator for neutron production unit（16）, spectrum acquisition and control unit
（15）, microwave data central processing unit（17）, computer digital animation unit（14）And display unit（13）；The microwave hair
Emitter（6）And microwave receiver（5）Connect microwave data central processing unit（17）, the digital control accelerator for neutron production unit
（16）Connect D-T accelerators for neutron production（9）, the spectrum acquires and control unit（15）Connect BGO detectors（10）, the computer
Data processing unit（14）And display unit（13）Spectrum unscrambling processing and coal data for spectrum signal are calculated and are shown.
Analytic process：Coal is from feeder（1）Material blanking tube（8）Fall on feeder（1）U-shaped belt lace（2）, process is whole
Shape device（4）Enter microwave receiver after processing（5）And microwave emitter（6）, microwave detection signals enter microwave data centre
Manage unit（17）, coal（3）Go successively to protection body（12）, by being located at coal（3）The D-T accelerators for neutron production of top（9）With
BGO detectors（10）, D-T accelerators for neutron production（9）With BGO detectors（10）It is all located at lead（11）In, coal（3）Detection is completed
Enter discharge nozzle afterwards（7）, then enter boiler-burner by coal pulverizer.Digital control accelerator for neutron production unit（16）Control D-
T accelerators for neutron production（9）The method of operation, spectrum acquisition and control unit（15）Acquire BGO detectors（10）Spectrum signal and to BGO visit
Survey device（10）Carry out thermostatic control, computer digital animation unit（14）And display unit（13）It is mainly used for the spectrum unscrambling of spectrum signal
Processing and coal data are calculated and are shown.Digital control accelerator for neutron production unit（16）, spectrum acquisition and control unit（15）, microwave
Data center processing unit（17）, computer digital animation unit（14）It is all located at system control cabinet with display unit（18）In.
In Fig. 1, it is necessary first to feeder（1）Structure be transformed, specific remodeling method be with cutting machine to
Coal machine（1）Head cover go out to cut out the rectangular v notch v of 1200*1000mm.Protection body（12）It is gate mobility framework structure, lead
（11）It is fixed on the top of gate frame, in lead（11）It precoats out a circular hole and square hole, circular hole is for placing in pulse D-T
Electronic generator（9）, square hole placement BGO detectors（10）.Protection body（12）It is welded and is formed by angle steel and I-steel, protection body（12）
Internal layer places 200mm thickness Boron-containing-PE plates, protection body（12）Outer layer places 100mm thickness common polythene plates, is mainly used to have
Effect protection neutron and gamma-ray.Protection body（12）Bottom surface idler wheel is installed, feeder break down need to safeguard when, it is mobile
Protection body（12）It is detached from feeder（1）.
In Fig. 1, when needing to start feeder（1）When delivering coal for boiler-burner, in analyzer software detection to feeder
Operating state signal after successively system start D-T accelerators for neutron production automatically（9）With spectrum acquisition and control unit（15）And meter
Calculation machine data processing unit（14）, in-line analyzer enters measuring state.The coal of run coal bin passes through material blanking tube（8）Into to coal
Machine（1）U-shaped belt lace（2）, due to U-shaped belt lace（2）On coal change in shape it is larger, directly affect measurement accuracy, because
This, must use reshaper before coal enters measured zone（4）Shape correction is carried out to coal shape.Coal after Shape correction
Moisture on-line detection, microwave emitter are carried out first outside protection body（6）Mounted on U-shaped belt lace（2）Lower section, in order to improve
Measurement accuracy, microwave emitter（6）With U-shaped belt lace（2）Lower section distance be not more than 20mm, microwave receiver（5）Mounted on U
Type belt lace（2）Top, the distance of the two is not more than 20mm, microwave receiver（6）And microwave receiver（5）Connected by cable
It is connected to microwave data central processing unit（17）, microwave data central processing unit（17）Export the 4-20mA letters of instantaneous moisture
Number, rs 232 serial interface signal is then converted to by communication module, and computer digital animation unit is accessed by serial communication cable
（14）.Coal passes through protection body（12）Into full Element detection region, pulse D-T accelerators for neutron production（9）By pulsed high voltage generator
It provides and accelerates pole tension, pulse period 200us, duty ratio 1:1, a part of fast neutron passes through lead（11）It is formed after slowing down
Thermal neutron thus forms a certain proportion of fast, thermal neutron, C the and O elements generation non-ballistic scattering reaction life of fast neutron and coal
At its feature gamma-ray, the corresponding feature gamma-ray of capture reaction generation occurs for the elements such as thermal neutron and H, uses high-resolution
The BGO detectors of rate（10）These feature gamma-rays are detected, and these feature gamma-rays are converted to electric signal, electric signal
Spectrum acquisition and control unit are transmitted to after signal pre-amplification circuit（15）, spectrum acquires and control unit（15）Pass through serial ports
Modal data is sent into computer digital animation unit by communication（14）, can by the spectrum unscrambling algorithm of Monte Carlo library-least square method
With 14 kinds of essential elements C, H, O, N, S, Si, Al, Fe, Ca, Ti, Na, K, P, Mg in real time parsing coal, then according to the above member
Prime information can calculate the Industrial Analysis index calorific value of coal, volatile matter, ash content, full sulphur, interior water, fixed carbon, ash component
Analytical cycle Deng, the present embodiment is 1 minute.
Fig. 2 is the detector temperature control system figure of the present embodiment.U6 components are LM92 bus temperature sensor cores in Fig. 2
Piece, can be BGO detectors（10）Temperature data is extended transmission distance by U5 bus extender chips in cavity reaches 50 meters,
Clock pulses of the clock pulse signal of U6 from U5, I/O port P1.1 of the clock signal from processor of single chip computer of U5, temperature
Signal enters the SDA mouths of U5 from the SDA of U6 outputs by signal, then enters the LDA mouths of U4 by the LDA mouths of U5, finally by U4
SDA mouths enter P1.1 mouths of processor of single chip computer, R5 and R6 are the pull-up resistors of the SDA and SCL of U6, enhance SDA's and SCL
High level voltage.The difference of the temperature and given temperature that detect in real time calculates temperature by PID blurring software algorithms and adjusts
Data are measured, for the data by P2.1 mouthfuls of DIN digital quantities input ports for being output to U1 of processor of single chip computer, U1 is 12 high-precision number of degrees
Mould conversion chip, the VoutA of U1 input the control terminal of temperature control power supply after integrated transporting discharging U2 amplifications, control the defeated of temperature control power supply
Go out voltage, the output voltage of temperature control power supply accesses heater.Due to setting the operating temperature of detector as 40 DEG C, detector cavity
Internal temperature do not exceed 40 DEG C generally, it is therefore not necessary to which refrigeration link is added, greatly reduce the failure of temperature control system
Rate.
Claims (6)
1. feeder formula coal elemental composition on-line analysis device, it is characterised in that it includes coal supply system, detecting system and control system
System；The coal supply system includes feeder, material blanking tube, U-shaped belt lace, reshaper and discharge nozzle successively；The detecting system according to
Secondary includes microwave receiver, microwave emitter and protection body；Top is equipped with D-T accelerators for neutron production in the protection body and BGO is visited
Device is surveyed, D-T accelerators for neutron production and BGO detectors are placed in lead；The control system includes digital control accelerator for neutron production list
Member, spectrum acquisition and control unit, microwave data central processing unit, computer digital animation unit and display unit；It is described micro-
Wave launcher connects microwave data central processing unit with microwave receiver, and the digital control accelerator for neutron production unit connects D-
T accelerators for neutron production, the spectrum acquisition and control unit connect BGO detectors, and the computer digital animation unit is believed for composing
Number spectrum unscrambling processing and coal data calculate, display unit shows for data；The D-T accelerators for neutron production are in pulse D-T
Electronic generator, the period for controlling pulse are 200us, duty ratio 1:1；The thermostatic control of the BGO detectors, using I2C buses
High accuracy number chip temperature LM92 be sensor, control BGO detector temperatures be 40 ± 0.5 DEG C；U6 components are LM92 total
Line temperature sensor chip is extended transmission distance BGO detectors cavity medium temperature degrees of data by U5 bus extender chips
Reach 50 meters, clock pulses of the clock pulse signal from U5 of U6, I/O port of the clock signal from processor of single chip computer of U5
P1.1, temperature signal enter the SDA mouths of U5 from the SDA of U6 outputs by signal, then enter the LDA mouths of U4 by the LDA mouths of U5,
Finally enter the P1.1 mouths of processor of single chip computer by the SDA of U4 mouths, R5 and R6 are the pull-up resistor of the SDA and SCL of U6, enhancing
The high level voltage of SDA and SCL；The difference of the temperature and given temperature that detect in real time is calculated by PID blurring software algorithms
Go out temperature regulated quantity data, for the data by P2.1 mouthfuls of DIN digital quantities input ports for being output to U1 of processor of single chip computer, U1 is 12
Position high-precision analog-digital chip, the VoutA of U1 input the control terminal of temperature control power supply, control temperature after integrated transporting discharging U2 amplifications
The output voltage of power supply is controlled, the output voltage of temperature control power supply accesses heater.
2. feeder formula coal elemental composition on-line analysis device according to claim 1, it is characterized in that：The protection body is door
Type mobility framework structure, protective materials include lead, polyethylene and Boron-containing-PE.
3. feeder formula coal elemental composition on-line analysis device according to claim 2, it is characterized in that：The protection body bottom
Portion is equipped with idler wheel.
4. a kind of analysis method using feeder formula coal elemental composition on-line analysis device described in claim 1, it is characterised in that
Coal falls on the U-shaped belt lace of feeder from the material blanking tube of feeder, and microwave receiver and micro- is entered after reshaper is handled
Wave launcher, microwave detection signals enter microwave data central processing unit, and coal goes successively to protection body, by being located at coal
The D-T accelerators for neutron production and BGO detectors of top enter discharge nozzle after the completion of detection, then enter boiler combustion by coal pulverizer
Burner；Digital control accelerator for neutron production unit control D-T accelerators for neutron production operation, spectrum acquisition and control unit acquisition BGO detections
The spectrum signal of device and to BGO detectors carry out thermostatic control, computer digital animation unit for spectrum signal spectrum unscrambling processing and
Coal data calculates, and display unit is shown for data.
5. analysis method according to claim 4, it is characterized in that：It delivers coal for boiler-burner when needing startup feeder
When, system starts D-T accelerators for neutron production and spectrum automatically successively after the operating state signal of analyzer software detection to feeder
Acquisition and control unit and computer digital animation unit, in-line analyzer enter measuring state；The coal of run coal bin passes through
Material blanking tube enters the U-shaped belt lace of feeder, and shaped device carries out Shape correction to coal shape, and coal is first after Shape correction
Moisture on-line detection is carried out outside protection body, microwave emitter is mounted on the lower section of U-shaped belt lace, and microwave receiver is mounted on U
The top of type belt lace, microwave receiver and microwave receiver pass through cable connection to microwave data central processing unit, microwave
Data center processing unit exports the 4-20mA signals of instantaneous moisture, is then converted to rs 232 serial interface signal by communication module, and lead to
Cross serial communication cable access computer digital animation unit；Coal passes through protection body to enter full Element detection region, pulse D-T
Accelerator for neutron production is provided by pulsed high voltage generator accelerates pole tension, pulse period 200us, duty ratio 1:1, during a part is fast
Son forms thermal neutron after lead slowing down, thus forms a certain proportion of fast, thermal neutron, C and the O member of fast neutron and coal
Element occurs non-ballistic scattering reaction and generates its feature gamma-ray, the corresponding spy of the elements generation capture reaction generation such as thermal neutron and H
Gamma-ray is levied, detects these feature gamma-rays using high-resolution BGO detectors, and these feature gamma-rays are turned
It is changed to electric signal, electric signal is transmitted to spectrum acquisition and control unit after signal pre-amplification circuit, and spectrum acquisition and control are single
Modal data is sent into computer digital animation unit by member by serial communication, passes through the spectrum unscrambling of Monte Carlo library-least square method
14 kinds of essential elements C, H, O, N, S, Si, Al, Fe, Ca, Ti, Na, K, P, Mg in algorithm real time parsing coal, then more than
Element information calculates the calorific value of Industrial Analysis index, volatile matter, ash content, full sulphur, interior water, fixed carbon and the ash component of coal.
6. analysis method according to claim 4, characterized in that analytical cycle is 1 minute.
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| CN201610812907.7A CN106290779B (en) | 2016-09-09 | 2016-09-09 | Feeder formula coal elemental composition on-line analysis device and analysis method |
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| CN111693552A (en) * | 2020-08-06 | 2020-09-22 | 承德鼎信自动化工程股份有限公司 | MZ-1 neutron on-line coal quality analyzer and relative measurement method |
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